Foldable Lightweight Cage Truck

Abstract

The present invention relates to a foldable light cage vehicle, comprising: a rear frame component 101, left and right frame components 102, 102' rotatably arranged at the left and right ends of the rear frame component; left and right door components 103, 103' rotatably arranged at the front ends of the left and right frame components; a loading frame 100 composed of a lower plate component 104 rotatably arranged at the lower end of the inner surface of the rear frame component by left and right lower plate hinge components and a lower plate bottom supporting device 170 arranged on the inner side surfaces of the left and right door components to support the lower plate component, left and right hinge components 200, 300 rotatably arranged at the left and right ends of the rear frame component, left and right door hinge components 400 rotatably arranged at the front ends of the left and right frame components and liftable within a certain interval, and casters 600 arranged at the lower end corners of the loading frame 100.

Description

[Technical field]

[0001] The present invention relates to a foldable light cage truck, specifically a foldable light cage truck that is light in weight, can prevent shortening of service life, and is very easy to clean and maintain. The foldable light cage truck is not only used for transporting various industrial products, but can also be used for transporting goods in various fields such as medicines or foods. [Background technology]

[0002] Generally, cage trucks are widely used in logistics industries or large supermarkets or factories that transport large quantities of goods. Figures 1 to 3 As shown, as a foldable cage car, it comprises: a loading frame 10, which has a frame 11a, which is a steel pipe slightly bent into Bracket 11b, which bends or squeezes the side profile of the steel plate slightly The shape is formed by welding and assembling the lower ends of the two vertical parts of the frame at the upper two ends of the horizontal part; a plurality of horizontal brackets 11c, which are formed into strips by steel plates, and the two ends of each are welded on the inner surface of the two vertical parts of the frame, and assembled horizontally across; the lower plate part 14 is formed by a small diameter steel bar, the upper end of which is welded and assembled under the upper horizontal part of the frame, and the lower end is formed by a plurality of vertical brackets 11d formed by vertically penetrating a plurality of horizontal brackets and welded and assembled on the horizontal part of the bracket, and the rear frame part 11, the left and right frame parts 12, 12', the left and right door parts 13, 13' and the steel plate, and the lower end of the front side of the rear frame part has a rear end that can be rotatably combined;

[0003] A plurality of hinge components 20 are provided to bend the steel plate so that the cross section is slightly The two frames are formed into a shape, and when in use, the two frames are made to correspond to each other, so that the corresponding vertical parts of each frame are respectively clamped into the multiple clamping parts at both ends to vertically penetrate, and then combined into In the state of the shape, after the bolts and nuts are fastened in the upper and lower multiple twisting holes, the multiple clamping parts at one end are welded and connected on one of the two vertical parts of the frame, so that it is fixed and cannot be dropped from the vertical part at will, and the multiple clamping parts at the other end are the clamping parts at one end and the other vertical parts of the frame that are not welded to rotate;

[0004] A latch component 30, which can be used to lock the left and right door components after they are closed;

[0005] Four casters 40 are respectively welded and arranged on the left and right sides of the lower end surface of the rear component and the front ends of the lower end surfaces of the left and right side frame components.

[0006] However, the various components of this foldable cage truck, except for the casters 50, are made of steel, and the combined parts of the various components including the casters are welded and assembled, and then painted for corrosion prevention and aesthetic reasons, resulting in very low operating efficiency and a significant reduction in production efficiency. In addition, due to its heavy weight, it is also very cumbersome and inconvenient to use and maintain.

[0007] Moreover, the paint is easy to fall off and the anti-corrosion effect is halved due to various factors such as frequent contact or collision with other objects during use, or when folded for storage or unfolded for use, and the paint is easy to fall off due to various factors. Moreover, due to these problems, it cannot be used for moving or transporting goods in various fields such as medical products, food, or precision instruments where cleanliness is the top priority, thus limiting its use.

[0008] Moreover, the joints of the components are welded and assembled, and some of them may be corroded or damaged, or even if only one caster is damaged, it cannot be repaired or replaced. Therefore, not only is the service life shortened, but it cannot be reused after being discarded, resulting in problems such as waste of resources and expenses.

[0009] Moreover, when folding for storage or other reasons, first open the left and right door components 13, 13' respectively, and then rotate them toward the outer sides of the left and right frame components 12, 12' to open them. However, at this time, the clamping parts at one end of the multiple hinge components 20 that rotatably connect the left and right door components to the left and right frame components are welded and assembled on the left and right vertical parts of the left and right door components, and the clamping parts at the other end are connected to the front vertical parts of the left and right frame components. Therefore, the clamping parts at the other end rotate around the multiple front vertical parts as the axis, and the left and right door components are each left and right vertical. After the outer side of the straight part contacts the front side parts of the outer sides of the left and right side frame parts, it will no longer rotate further. Therefore, as seen in the plane, the left and right side door parts cannot respectively cling to the outer sides of the left and right side frame parts, but are tilted and pulled apart outward. In this state, the lower plate part 14 is rotated vertically so that the upper part is in close contact with the lower inner surface of the rear frame part 11, and then one of the left and right side frame parts that are respectively pulled apart outward is first rotated and opened toward the inner side of the rear frame part whose inner lower part is in close contact with the lower plate part, and then the other is rotated toward the inner side of the rear frame part.

[0010] However, the result of such operation is that the left and right door parts are tilted and unfolded at a limited angle, which limits the minimization of the folding thickness. More space is occupied for the transportation or storage of the cage truck, thus causing the folding effect to be halved. [Summary of the invention]

[0011]

Technical issues

[0012] The present invention is created in consideration of these existing problems, and its purpose is to provide a foldable light cage truck that is light in weight, very convenient and simple to use and maintain, and has outstanding cleaning effect while greatly improving operating efficiency and production efficiency. The foldable light cage truck can be widely used for moving or transporting general industrial products, medical supplies, food, precision instruments and other items in various fields.

[0013] Another object of the present invention is to provide a foldable light cage truck whose thickness can be minimized after folding, which is not only convenient for storage but also very convenient for space utilization. Even if a part of it is damaged during use, the part can be simply disassembled for repair or replacement, thereby preventing the life span from being shortened and being reused when discarded without causing waste of resources and costs.

[0014] Yet another object of the present invention is to provide a foldable light cage trolley that can be used safely without causing any safety accidents such as injuries caused by accidentally pinching the feet or ankles in the space between the lower frame and the ground when the cage trolley is pushed or pulled to move the cage trolley.

[0015]

Technical solution

[0016] To achieve the above object, the present invention provides a foldable light cage vehicle, preferably, the composition of which includes: a loading frame, the structure of which includes: a frame portion, the side section of which is slightly The square tube shape is formed so that one side has The shaped fastening groove is bent into shape; a lower frame portion, which has an upper end which can be openably recessed and formed on the inner end side of the upper insertion groove and, The side surface of the inner side surface of the insertion groove is formed in a concave shape, and the groove portion and the lower horizontal partition are divided into an upper and lower horizontal partition, and the lower middle of the horizontal partition is The first screwing opening of the screw is screwed in the two ends, and the side section is The horizontal bracket is formed in a tubular shape, which passes between the lower ends of the two vertical parts of the frame and makes both ends assembled on the inner lower ends of the two vertical parts; The shape is convex at the lower part of the upper part and has a second screw-in opening at both ends for screwing screws, and the side section is slightly shaped tube, which passes horizontally between the inner surfaces of the two vertical parts of the frame part and has its two ends assembled on the inner surfaces of the two vertical parts; a rear frame part, which is formed in a small-diameter tube shape, and passes through the first and second combining holes that can pass through the upper and lower surfaces of the horizontal part of the frame part and the horizontal bracket, and the third combining hole perforated on the upper surface of the lower frame part, so that the lower end is supported by the lower surface of the lower frame part, and the upper end is a vertical bracket that is arranged between the upper and lower surfaces of the horizontal part of the frame part and combined; left and right side frame parts, which are formed in the same way as the rear side frame part; left and right side door parts, which have a frame part, a horizontal bracket and a vertical bracket formed in the same way as the rear side frame part, and a side section slightly The lower plate component is formed in the shape of a square tube, and passes through between the lower ends of the two vertical parts of the frame part and has its two ends assembled on the lower frame part between the lower ends of the inner surfaces of the two vertical parts; the lower plate component comprises a lower plate material formed by a quadrilateral flat plate and a plurality of bottom surface materials, which are arranged to be rotatable up and down at the lower end of the inner surface of the rear frame part through left and right lower plate hinge parts, four frame materials on the front, back, left and right sides that are combined with the four sides of the lower plate material, a buckling material that buckles the four corners of the frame material, and a plurality of bottom surface materials that pass through the bottom of the lower plate material, and whose two ends are combined with the inner surfaces of the corresponding two frame materials;

[0017] Left and right lower plate bottom supporting devices, which are arranged at the lower ends of the inner sides of the left and right frame components and support the lower plate components;

[0018] A left hinge member, which combines the rear end of the left frame member with the left end of the rear frame member so that the left frame member can rotate forward and reverse within a range of 270 degrees;

[0019] A right hinge member, which combines the rear end of the right frame member with the right end of the rear frame member so that it can rotate forward and reverse within a range of 90 degrees;

[0020] The left and right door hinge components are respectively combined and arranged on the front ends of the left and right frame components so that the left and right door components can rotate forward and reverse within a range of 270 degrees and can be raised and lowered within a certain interval;

[0021] The door bottom supporting device is arranged at the middle part of the front side of the lower plate component, and supports the lower end parts of the corresponding right and left ends together after the left and right door components are closed and lowered;

[0022] Casters are respectively arranged on the left and right end portions of the lower side of the rear frame component and the lower frame portions of the left and right frame components.

[0023] Preferably, the structure of the present invention also includes: casters are respectively arranged at the left and right ends of the lower side of the rear frame component and the front ends of the lower sides of the left and right side frame components, and are not exposed to the outside of the four corners of the loading frame to prevent the component from being easily damaged by collision with other objects during movement, thereby shortening the service life; a fixing component that rotates the lower plate component to a horizontal state and fixes it so that it cannot be lifted at will; and a safety component is arranged at the lower ends of the rear frame component and the left and right side frame components to prevent the foot or ankle from entering the space between the bottom of these components and the ground.

[0024]

Beneficial Effects

[0025] According to the foldable light cage car of the present invention as described above, its beneficial effect is that, except for the feet, the components including the loading frame, the left and right side hinge parts, the left and right side door hinge parts and the left and right side lower plate hinge parts are all formed of aluminum materials, without welding, but directly assembled and manufactured, so compared with the existing foldable cage car, the weight is reduced by more than 40%, the use and maintenance are very simple and convenient, the operation efficiency and production efficiency are greatly improved, the cleanability is outstanding, and the long-term use can be widely used not only for the transportation of ordinary industrial products, but also for the movement or transportation of goods in various fields such as other medical supplies or food, precision instruments, etc.

[0026] After folding, the thickness is minimized, which is very convenient not only for storage but also for space use. During use, even if a part is damaged, the part can be simply removed for repair or replacement, which not only shortens the life span but also can be reused when discarded, thus avoiding a large amount of waste of resources and costs.

[0027] When the cage is moved with a fork, the lower plate will not be lifted by the fork, and when the operator moves the cage, the feet or ankles can be prevented from accidentally entering the space between the bottom and the ground, so it can be used safely.

[0028] The casters are not exposed outside the four corners of the loading frame, so they will not be easily damaged and have a shortened service life due to collision with other objects during movement.

Brief Description of the Drawings

[0029] Figure 1 is a perspective view showing an example of a conventional foldable cage vehicle;

[0030] Figure 2 Yes Display Figure 1 A plan view of the cage truck when it is folded;

[0031] Figure 3 Yes Display Figure 1 A perspective view of the cage car in a fully folded state;

[0032] Figure 4a , Figure 4b 1 is a perspective view and a plan view of a foldable light cage vehicle according to a first embodiment of the present invention;

[0033] Figure 5 Yes Figure 4a , Figure 4b A perspective view showing the light cage truck separated;

[0034] Figure 6 is from Figure 5 A perspective view showing an enlarged portion of a selected rear side frame member;

[0035] Figure 7 is from Figure 6 A side sectional view showing a part of the selected frame portion in an enlarged manner;

[0036] Figure 8a , b is from Figure 6 A perspective view and a side sectional view showing a portion of the lower frame portion being selected and enlarged;

[0037] Figure 9a , b is from Figure 6 A perspective view and a side sectional view showing an enlarged portion of a selected horizontal support;

[0038] Fig.10a , b is Figure 6 A longitudinal section view and a cross section view showing an enlarged view of a rear side frame component;

[0039] Fig.11a is from Figure 5 The left and right frame parts are selected and a part is separated to show the perspective view of enlargement;

[0040] Fig.11b is from Fig.11a A perspective view showing an enlarged display of the selected combined device;

[0041] Fig.11c is from Fig.11a A perspective view showing the lower plate support device being selected and separated and enlarged;

[0042] Fig.11d Yes Fig.11c The lower plate support device is combined with an enlarged side sectional view;

[0043] Fig.11e is from Fig.11a A perspective view showing the left and right side holding devices being enlarged and displayed;

[0044] Fig.11f is from Fig.11a A perspective view showing an enlarged view of a selected supporting component;

[0045] Fig.12a yes Figure 5 A perspective view showing the left and right door parts are enlarged;

[0046] Figure 12b is from Fig.12a A plan view of a door locking component is enlarged to show the locked state;

[0047] Fig.13a is from Figure 5 A perspective view showing the lower plate parts being selected and separated and enlarged;

[0048] Fig.13b is from Fig.13a The middle excerpt shows the enlarged side section view of the frame material;

[0049] Fig.13c is from Fig.13a A perspective view showing the separation and enlargement of the door base assembly is shown in the middle;

[0050] Fig.13d is from Fig.13a A side cross-sectional view of the door base assembly is shown in the middle;

[0051] Fig.14a , b is a front sectional view and a side sectional view showing an enlarged state of the assembly of the lower plate component of FIG. 13;

[0052] Fig.15 is from Figure 5 A perspective view showing the left hinge part separated and enlarged;

[0053] Fig.16 Yes Fig.15 A perspective view showing a part of the left hinge part in the setting state;

[0054] Fig.17a ~c is Fig.15 A plan view showing a portion of the left hinge part in use;

[0055] Fig.18 is from Figure 5 A perspective view showing the right hinge part separated and enlarged;

[0056] Fig.19 Yes Fig.18 A perspective view showing a portion of the setting state of the right hinge part in FIG.

[0057] Fig.20a ~c is Fig.18 A plan view showing a portion of the right hinge part in use;

[0058] Fig.21 is from Figure 5 A perspective view showing the left and right door hinge components of the first embodiment separated and enlarged;

[0059] Fig. 22 Yes Fig.21 A perspective view showing a portion of the left and right door hinge components in an enlarged manner;

[0060] Fig.23a , b is Fig. 22 A plan view showing a portion of the left and right door hinge components in use;

[0061] Fig.24 Yes Fig. 22 A front view showing a portion of the left and right door hinge components in another use state, which is selected and enlarged;

[0062] Fig.25 is from Figure 5 A perspective view showing the left and right door hinge components of the second embodiment of the invention separated and enlarged;

[0063] Fig.26 Yes Fig.25 A perspective view showing a portion of the left and right door hinge components in an enlarged manner;

[0064] Fig.27a , b is Fig.26 A plan view showing a portion of the left and right door hinge components in use;

[0065] Fig.28 Yes Fig.26 A front view showing a portion of the left and right door hinge components in another use state, which is selected and enlarged;

[0066] Fig.29 13 is a perspective view showing the left and right lower plate hinge components separated and enlarged;

[0067] Fig.30a , b is Fig.29 A side view showing a portion of the left and right lower plate hinge components in use;

[0068] Fig.31 is from Figure 5 A perspective view showing an enlarged view of the caster setting section;

[0069] Fig.32 is from Fig.31 A perspective view showing the caster and setting parts separated and enlarged;

[0070] Fig.33 is from Fig.31A side sectional view showing a portion of a caster wheel setting part being enlarged;

[0071] Fig.34a ~e is displayed Figure 4a , Figure 4b Plan view and perspective view of the folding process of the light cage truck;

[0072] Fig.35 is a perspective view schematically showing a foldable light cage vehicle according to another embodiment of the present invention;

[0073] Fig.36 is from Fig.35 A perspective view in which a portion of the display is omitted;

[0074] Fig.37 is from Fig.35 A perspective view showing an enlarged view of selected lower panel components;

[0075] Fig.38 is from Fig.35 A perspective view showing a separation and enlargement of the hinge components of the lower plate;

[0076] Fig.39a , b is Fig.38 A side sectional view showing an enlarged state of the lower plate hinge component in use;

[0077] Fig.40 is from Fig.35 A perspective view showing a separation and enlargement of the fixing parts of the lower plate component selected from the middle;

[0078] Fig.41a , b is display Fig.40 A side sectional view of the separation and assembly states of the fixing parts;

[0079] Fig.42a ~c is Fig.40 A selected and enlarged plan view and a partially cut-out side view showing a state where a lower plate member is fixed by a fixing member;

[0080] Fig.43 is from Fig.35 A perspective view showing an enlarged view of selected casters and set components;

[0081] Fig.44a Yes Display Fig.43 A front view of the middle caster and the setting component in a combined state;

[0082] Figure 44b Yes Display Fig.44a A front view of a state in which the setting component of the middle combined caster is assembled to the lower frame portion;

[0083] Fig.45 Yes Display Fig.43A perspective view of a state in which the casters are arranged on the inner sides of the four corners of the lower side of the cage vehicle through the arrangement components;

[0084] Fig.46a , b is from Fig.35 A front view and a side view showing a part of the safety component installation state enlarged;

[0085] Fig.47a is from Fig.46a The enlarged front and perspective views of selected safety components;

[0086] Figure 47b Yes Fig.47a The front view and perspective view of the safety parts separated and enlarged;

[0087] Fig.48a , b is Fig.35 A front view and a side view showing a part of the safety component setting state of other embodiments applicable to the cage vehicle;

[0088] Fig.49a is from Fig.48a A front view and a perspective view showing an enlarged display of safety components selected from other embodiments;

[0089] Fig.49b Yes Fig.49a The safety components of other embodiments are shown in a front view and a perspective view with separation and enlargement.

[0090]

Explanation of symbols

[0091] 100: loading frame; 101: rear side frame component;

[0092] 102: left side frame member; 102': rear side frame member;

[0093] 103: left door component; 103': right door component;

[0094] 104: lower plate component; 105: supporting component;

[0095] 106: door locking component; 107: setting component;

[0096] 108: fixed component; 109: safety component;

[0097] 109a: first safety plate; 109b: second safety plate;

[0098] 110: frame portion; 120: lower frame portion;

[0099] 125: first buckling groove; 125': second buckling groove;

[0100] 130: horizontal bracket; 140: vertical bracket;

[0101] 150: sealing cap; 160: buckling device;

[0102] 170: lower plate supporting device; 180: left and right side holding devices;

[0103] 190: Door bottom bracket device; 200: Left hinge component;

[0104] 300: right hinge part; 400: door hinge part;

[0105] 500: lower plate hinge parts; 600: casters;

[0106] 1071: plate portion is provided; 1075: bottom support surface portion;

[0107] 1084: Fixing device; 1082: Stopping device;

[0108] 1083: a first fixing bolt; 1084: a second fixing bolt;

[0109] 1091: safety strip; 1092: cushion;

[0110] 109a: first safety plate; 109b: second safety plate. [Specific implementation method]

[0111] The foldable light cage vehicle of the present invention is described in detail below with reference to the accompanying drawings.

[0112] Figure 4a , Figure 4b It is a perspective view and a plan view of the foldable light cage vehicle of the present invention. Figure 5 Yes Figure 4a , Figure 4b A perspective view of a lightweight cage truck shown separated.

[0113] Figure 4a , Figure 4b and Figure 5The light cage car is characterized in that it comprises: a loading frame 100 having a rear frame part 101, left and right frame parts 102, 102' rotatably combined at the left and right ends of the rear frame part, left and right door parts 103, 103' rotatably combined at the front ends of the left and right frame parts, and a lower plate part 104 rotatably combined at the lower end of the inner side surface of the rear frame part, and a lower plate bottom supporting device 170 additionally provided on the inner side surfaces of the left and right door parts to support the lower plate part, and a door locking part 106 provided on the left and right door parts; A left hinge part 200 is combined with the left end of the rear frame part to rotate the left frame part; a right hinge part 300 is combined with the right end of the rear frame part to rotate the right frame part; left and right door hinge parts 400 are combined with the front ends of the left and right frame parts to rotate the left and right door parts and can be raised and lowered within a certain interval; left and right lower plate hinge parts 500 are combined with the lower end of the front side of the rear frame part to rotate the lower plate part up and down; casters 600 are respectively combined with the left and right end parts of the lower side of the rear frame part and the front ends of the lower sides of the left and right frame parts.

[0114] On the other hand, the loading frame 100 , the hinge parts 200 , 300 , the door hinge parts 400 , 400 ′, and the lower plate hinge parts 500 , 500 ′ except the caster 600 are all made of aluminum.

[0115] Figure 6 is from Figure 5 A perspective view showing a portion of the rear frame component is enlarged. Figure 7 is from Figure 6 A side sectional view showing a portion of the selected frame part, Figure 8a , b is from Figure 6 A perspective view and a side sectional view showing a portion of the lower frame portion are enlarged and shown in FIG. Figure 9a , b is from Figure 6 A perspective view and a side sectional view showing a part of the horizontal support selected from the figure. Fig.10a , b is Figure 6 The longitudinal and transverse sections of the rear side frame components are enlarged.

[0116] The rear frame component 101 comprises a frame portion 110, a lower frame portion 120 whose two ends are connected to the lower ends of the inner sides of the two vertical parts of the frame portion, a horizontal bracket 130 whose two ends are assembled on the inner sides of the two vertical parts of the frame portion, an upper end vertically penetrates through the upper and lower sides of the horizontal part of the frame, and a lower end vertically penetrates through the upper and lower sides of the horizontal bracket and the upper side of the lower frame portion, and then is inserted into a plurality of vertical brackets 140 combined with the lower frame portion, a sealing cap and a snap-fit ​​device 160.

[0117] The frame portion 110 is extruded into a side section slightly The square tube shape makes the two ends bend correspondingly The buckling groove 111 is formed on one side, and then cut and bent according to the required length to form form.

[0118] The lower frame portion 120 is provided with an insertion groove 121 which is open at the upper end and recessed at the inner end side of the upper surface. The side surface of the insertion groove directly below the inner side surface is formed with a concave groove 122 and a groove portion 123, which divides the internal space into upper and lower horizontal partitions 123 and a lower portion of the horizontal partition. The shape is protruding so that the lower end is separated in the middle and the first screwing opening 124 of the screw is screwed at both ends, and the side section is slightly After the tube is shaped, it can be cut into required length for use.

[0119] The horizontal support 130 is provided with a lower end and a middle part separated from the lower end. The second screwing opening 131 of the screw is screwed at both ends and is squeezed to form a side section slightly The square tube shape can then be cut to the required length.

[0120] The vertical support 140 is extruded into a small-diameter tube shape and can be cut into required lengths for use.

[0121] The sealing cap 150 is formed of synthetic resin, and its structure includes: a cap portion 151 formed in a circular plate shape and an elastic fitting portion 152 formed by a plurality of elastic sheets extending downward from the lower center of the cap portion and gradually extending from the lower end to the upper side to form a first coupling hole 112 that allows the horizontal part of the frame portion 110 to pass through the upper and lower sides to have a larger inner diameter than the inner diameter of the upper coupling hole.

[0122] The fastening device 160 includes a fastening belt portion 161 which is made of highly elastic polyurethane series synthetic fibers with excellent wear resistance and elasticity and is woven into a rope shape and then cut into a required length, and a fixing plate portion 162 with screw holes passed through the other end and the two ends of the fastening belt portion pressed and fastened at one end.

[0123] This snap-fitting device 160 is assembled to required portions of the rear frame member 101 and the left and right frame members 102, 102' using support discs 163 and bolts 164 through screw holes, as will be described later.

[0124] When the rear frame member 101 is assembled using the frame portion 110, the lower frame portion 120, the horizontal bracket 130, and the vertical bracket 140 formed in this way, first, the frame portion is bent into form, The shaped buckling groove portion 111 becomes the outer peripheral surface, and the lower frame portion and the horizontal bracket are cut according to the length of the inner side surfaces of the two vertical parts of the frame portion at both ends thereof.

[0125] Then, in proportion to the number of vertical brackets 140 vertically connected, a plurality of first and second connecting holes 112 and 132 are respectively penetrated vertically through the upper and lower surfaces on the horizontal part of the frame part 110 and the horizontal bracket 130, and corresponding to the plurality of connecting holes, a third connecting hole 125 is vertically penetrated only on the upper surface of the lower frame part 120, and the first and second connecting holes 113 and 114 that can horizontally penetrate the inner and outer surfaces are respectively penetrated in correspondence with the first connecting openings 124 and the second connecting openings 131 of the lower frame part and the horizontal bracket so that the two ends of the lower frame part and the horizontal bracket are tightly assembled in the two vertical parts of the frame part.

[0126] Among the multiple first combining holes 112 that can be vertically penetrated on the upper and lower sides of the horizontal part of the horizontal part of the frame portion 110, the inner diameter of the first combining hole that can be vertically penetrated on the upper side of the horizontal part is larger than the outer diameter of the vertical bracket 140. On the contrary, the inner diameter of the first combining hole that is penetrated on the lower side of the horizontal part is a hole corresponding to the outer diameter of the vertical bracket, and then the sealing cap 150 described later is connected to the first combining hole that is penetrated on the upper side.

[0127] In the first and second twisting holes 113 and 114 that can be horizontally passed through the inner and outer surfaces of the two vertical parts of the frame portion 110, the inner diameters of the first and second twisting holes that can be horizontally passed through the inner surface of the vertical part are corresponding to the inner diameters of the first twisting opening 124 of the lower frame portion 120 and the multiple second twisting openings 131 of the horizontal bracket 130. On the contrary, the inner diameters of the first and second twisting holes passed through the outer surfaces of the two vertical parts are larger than the inner diameters of the first twisting opening and the second twisting opening, thereby combining with the sealing cap 150 as described later.

[0128] As described later, on each upper and lower side of the two vertical parts of the frame portion 110, a plurality of bolt fastening holes 115 can be horizontally passed through the inner and outer surfaces in pairs of upper and lower parts, which are respectively used to assemble the left and right hinge parts 200, 300 and the left and right door hinge parts 400, 400' that are rotatably connected to the rear frame part 101 and the left and right frame parts 102, 102' and the left and right frame parts and the left and right door parts 103, 103'.

[0129] A pair of bolt holes 126 are respectively formed on the upper sides of the left and right parts of the front surface of the lower frame portion 120 for fixing the left and right lower plate hinge components 500 rotatably connected to the lower plate component 104 with bolts.

[0130] As described later, each lower end portion of the two vertical parts of the frame portion 110 and each corresponding left and right end portion of the lower frame portion 120 has a pair of outer and inner twisting holes 116 and 127 that can penetrate through the front and back sides for assembling the caster 600 with bolts and nuts.

[0131] Then, with the two ends of the horizontal bracket 130 tightly attached to the inner surfaces of the two vertical parts of the frame portion 110 through the multiple first twisting holes 113, screws are tightened on the two end portions of the second twisting openings 131 of the horizontal bracket through the outer ends of the multiple first twisting holes to assemble the horizontal bracket horizontally from the inner surfaces of the two vertical parts.

[0132] Moreover, with the two ends of the lower frame portion 120 tightly attached to the lower end portions of the inner surfaces of the two vertical portions of the frame portion 110 that pass through the second twisting holes 114, screws are tightened at the two end portions of the first twisting opening 124 of the lower frame portion through the outer ends of the second twisting holes, and the lower frame portion is assembled horizontally across the inner surfaces of the lower ends of the two vertical portions of the horizontal bracket.

[0133] After such assembly, the first and second coupling holes 112 and 132 respectively penetrated through the horizontal portion of the frame portion 110 and the horizontal bracket 130 and the plurality of third coupling holes 125 penetrated only through the upper surface of the lower frame portion 120 are all aligned in a vertical line.

[0134] In this state, the lower ends of the plurality of vertical brackets 140 vertically pass through the first to third coupling holes 112, 132, 125 on the vertical lines in sequence, and are supported and coupled to the inner bottom surface of the lower frame portion 120 that does not pass through the third coupling hole.

[0135] In such a combined state, the upper ends of the plurality of vertical brackets 140 are disposed between the upper and lower surfaces inside the horizontal portion of the frame portion 110 that vertically passes through the first combining hole 112 .

[0136] In this state, the sealing cap 150 is combined with the upper first combining hole 112. During the process of the middle part of the elastic fitting part 152 formed by multiple elastic sheets arranged at intervals gradually larger than the inner diameter of the first combining hole from the lower end to the upper side, the intervals between the multiple elastic sheets become narrower and the middle part passes through the upper first combining hole. Then, the elastic sheets stretch out due to their own elasticity and get stuck at the lower end of the upper first combining hole. At the same time, the lower end of the combining part is tightly attached to the upper ends of the multiple vertical brackets 140 located between the upper and lower sides of the horizontal part of the frame part 110.

[0137] Then the sealing cap 150 is firmly fixed on the first combining hole 112 above and will not be separated at will, so that the first combining hole and its interior are sealed and cannot be exposed to prevent foreign matter from flowing into the interior. Therefore, even if used for a long time, it can still maintain a clean and beautiful state. Moreover, the lower end of the elastic fitting part 152 is tightly attached to the upper ends of the multiple vertical brackets 140, which can prevent the vertical brackets from flowing up and down or detaching due to vibration or impact during the use of the cage car.

[0138] In this way, even without welding, the rear frame member 101 can be obtained in which the frame portion 110 and the lower frame portion 120 as well as the horizontal bracket 130 and the plurality of vertical brackets 140 are firmly assembled with each other.

[0139] Fig.11a is from Figure 5 A perspective view showing a portion of the left and right frame parts being separated and enlarged.

[0140] The left and right frame parts 102, 102' are extruded into a slightly The square tube can be cut into the required length and then bent into The frame portion 110 and the extrusion molding are slightly The lower frame portion 120 and the lower frame portion 120 can be cut into a desired length after being shaped into a tubular shape; The horizontal bracket 130 and can be cut into the required length after being shaped into a square tube; the vertical bracket 140 and can be cut into the required length after being extruded into a small diameter tube; the sealing cap 150 and a plurality of snap-fit ​​devices 160, so that they are the same as the rear side frame component 101 and can be firmly assembled with each other without welding.

[0141] However, the difference lies in that the upper and lower lengths of the left and right side frame parts 102, 102' are the same as those of the rear side frame part 101, while the front and rear widths are preferably set smaller than the left and right widths of the rear side frame part, and a plurality of snap-fit ​​devices 160 are combined with the rear vertical part of the frame part 110, and also include left and right side lower plate supporting devices 170 and left and right side holding devices 180 respectively arranged on the left and right side frame parts.

[0142] Fig.11b is from Fig.11b A perspective view showing an enlarged view of a selected fastening device.

[0143] The fastening device 160 is composed of a fastening belt portion 161 of a required length made of a material such as highly elastic polyurethane fiber, and a fixing plate portion 162 with a screw hole passing through the center of the other end portion. The fastening device 160 is assembled with screws at the required parts of the rear frame component 101 and the left and right side frame components 102, 120'.

[0144] Fig.11c is from Fig.11a A perspective view showing the separation and enlargement of the lower plate support assembly is shown in the figure. Fig.11d Yes Fig.11c The lower plate support device is combined with an enlarged side sectional view.

[0145] The lower plate support device 170 on the left and right sides is composed of a bottom panel 171 which can be cut to a desired length after being extruded from aluminum, and a buffer plate 172 which is formed of an elastic body such as polyurethane and combined with the inner side of the bottom panel material.

[0146] The bottom panel 171 is provided with a bottom sheet 1711 and a corresponding slightly A plurality of buckling parts 1712 and are vertically formed at both ends of the bottom sheet, a bottom plate sheet 1713 and is horizontally extended to a predetermined length at one end of the bottom sheet, a horizontal sheet 1714 and is horizontally extended in parallel with the bottom plate sheet and is separated from the top end by a predetermined interval on the outer side of the buckling part of the bottom plate sheet, a vertical sheet 1715 extending vertically on the outer end of the horizontal sheet and the upper end of which is connected to the upper end of the side connecting groove 122, and a connecting sheet 1716 extending downward from the lower end of the vertical sheet and connected to the lower end of the side connecting groove, so that the side section is slightly The shape of the composition.

[0147] The buffer plate 172 comprises a bottom surface portion 1721 disposed on the bottom surface sheet 1711 and a bottom surface portion 1722 disposed on the bottom surface sheet 1711 and a bottom surface portion 1721 disposed on the bottom surface sheet 1711 and a bottom surface portion 1722 disposed on the bottom surface sheet 1711. The morphology is symmetrically extended and combined with The connecting portion 1722 of the plurality of buckling portions 1712 is shaped so that the side section is slightly The shape of the composition.

[0148] These buffer plates 172 are formed by inserting a plurality of coupling parts 1722 into each snap-fitting part 1712 from the side upward of the bottom panel 171, and the bottom of the bottom panel 1721 is supported and coupled by the top of the bottom panel 1711, so that the buffer plates are tightly attached to the bottom panel due to their own elasticity.

[0149] The lower plate base support device 170 assembled in this way is that before the lower frame portion 120 is assembled on the lower ends of the frame portions 110 of the left and right door components 103, 103', on the lateral direction of the lower frame portion, the upper end of the vertical piece 1715 and the connecting piece 1716 are inserted into the upper and lower ends of the side connecting groove portion 122 for connection, and then in a state where they are located at the required positions of the side connecting groove portion, screws are tightened on the screw holes passing through the vertical piece and the side connecting groove portion for assembly.

[0150] The lower plate supporting device 170 is arranged in this way, when the lower plate component 104 is in a horizontal state, the left and right side parts of the lower plate component are firmly supported, so that even if it is used for a long time, the goods can be stably loaded and carried.

[0151] Fig.11e is from Fig.11a Selected perspective views of the left and right hand grips showing enlarged views.

[0152] The left and right gripping devices 180 are made of highly elastic polyurethane rubber or the like. The shaped section is formed and the side section is The main body 181 is buckled in a state of being wrapped by the frame part 110 of the shape, and the two sides of the main body are bent vertically and horizontally inwardly correspondingly from the two ends of the main body, and then the two sides of the buckling part 182 are combined in a state of wrapping the two ends of the buckling groove part 111 of the frame part, so that the cross section is slightly The shape is extruded to be longer, cut to the required length, and then combined with the vertical part of the frame part using its own elasticity to form a structure.

[0153] This holding device 180 is preferably combined with the upper part of the front end vertical part of the two vertical parts of each frame part 110 of the left and right side frame parts 102, 102' which can be simply and easily held by anyone when moving the cage car, so that the frame part can be held and moved without wearing gloves in cold weather.

[0154] Fig.11f is from Fig.11a A perspective view showing an enlarged view of a selected support component.

[0155] The support component 105 is that the height of the left and right door components 103 and 103' is set lower than the left and right frame components 102 and 102'. Then, as described later, when the left and right frame components 102 and 102' are respectively rotated forward 90° on the left and right ends of the rear frame component 101 to form a right angle with each other and become the left and right sides of the loading frame 100, the front between the upper ends of the left and right frame components and the left and right door components becomes open in proportion to the height difference. Therefore, when the goods are loaded and moved higher than the upper ends of the left and right door components on the loading frame, in order to prevent the goods from accidentally pouring from the upper ends of the left and right door components, it is horizontally arranged from the upper part of the vertical component which is the front end of each component of the left and right frame components.

[0156] The support member 105 is formed of aluminum and comprises a bracket 1051 in the form of a square tube, a hinge portion 1052 which is mounted on one of the upper vertical portions of the frame portion 110 at the front ends of the left and right frame members 102 and 102', and a hook pin portion 1053 which is mounted on the upper vertical portion of the other vertical portion where the hinge portion is not mounted in correspondence with the hinge portion, a bearing portion 1054 which is mounted on one end of the bracket and coupled to the hinge portion axis, a hook portion 1055 which is mounted on the other end of the bracket and hooked by the hook pin portion, and a cross-section of the bracket having a shape of a substantially The bracket is shaped and assembled on the lower side of the vertical part where the hinge part is assembled. When the bracket is not in use, the other end part is rotated downward with the hinge part as the axis and is combined with the bracket buckling part 1056, which is fixed and cannot be detached at will.

[0157] Fig.12a is from Figure 5 A perspective view showing an enlarged view of the left and right door components.

[0158] The left and right door components 103, 103' are extruded into a slightly The square tube is cut and bent into the required length. The frame portion 110 and the shape are extruded into a slightly The horizontal bracket 130 which can be cut into the required length after being shaped into a square tube form and the vertical bracket 140 which can be cut into the required length after being extruded into a small diameter tube form and the plurality of sealing caps 150 can be firmly assembled with each other without welding, and are the same as the rear frame component 101 and the left and right side frame components 102, 102'.

[0159] However, the upper and lower lengths of the left and right door components 103, 103' are, according to the requirements, the same as or shorter than the rear frame component 101 and the left and right frame components 102, 102', and the left and right widths thereof are half the left and right widths of the rear frame component. The lower frame portion 120 is made of a material that is slightly similar to the extruded cross-section. The frame portion 110 of the shape is similarly There are differences in the structure of the downward assembly of the shaped snap-fit ​​groove portion 111.

[0160] As described above, if the lower frame part 120 is the same as the frame part 110 , the lower end of the vertical bracket 140 can be connected after the upward lower side of the lower frame part passes through the third connection hole 125 .

[0161] Moreover, a pair of upper and lower bolt fastening holes 115 for assembling the left and right hinge components 400 are respectively penetrated in the upper and lower parts of the left end of the two vertical parts of the frame part 110 of the left door component 103 and the upper and lower parts of the right end of the two vertical parts of the frame part of the right door component 103', and bolt fastening holes for assembling the door locking component 106 are also penetrated in the upper side parts of the corresponding vertical parts of the two vertical parts of the frame parts of the corresponding left and right door components.

[0162] The number of horizontal brackets 130 in the rear frame component 101 and the left and right frame components 102, 102' and the left and right door components 103, 103' constructed in this way is set to one or more than two according to the specifications of the loading frame 100, and the number of vertical brackets 140 combined can be set to more than two or more than three.

[0163] Fig.13a is from Figure 5 A perspective view showing the separation and enlargement of the lower panel parts. Fig.13b is from Fig.13a The side section view of the selected border part is enlarged and displayed. Fig.13c is from Fig.13a A perspective view showing the separated and enlarged view of the door base parts. Fig.13d is from Fig.13a The side section view of the door bracket assembly is enlarged and shown in the figure. Fig.14a , b are a front sectional view and a side sectional view showing an enlarged state of the lower plate component of FIG. 13 .

[0164] The lower plate component 104 is composed of a lower plate 141 composed of a quadrilateral flat plate, four frame materials 142 on the front, back, left and right sides that wrap around the four sides of the lower plate and are connected, a fastening material 143 that snaps together the four corners of the frame materials, and a plurality of bottom surface materials 144 that pass horizontally from the bottom of the lower plate and connect the two ends to the inner lower sides of the corresponding two frame materials.

[0165] The frame material 142 has a side profile. The outer fastening groove 1421 of the shape and the insertion groove 1422 are formed by horizontal depressions at upper and lower intervals corresponding to the thickness of the lower plate 141 so that the rear end is open at the upper lower part, so that the side section is slightly After forming the square tube, cut it into the required length for use.

[0166] The fastening material 143 is connected to each other at right angles and has a cross section of The upper and lower widths and thicknesses are formed by the first and second buckling pieces 1431 and 1432 formed corresponding to the buckling groove 1421.

[0167] The bottom surface material 144 is formed of a square tube similar to the horizontal bracket 130 having the first twisting port 131 .

[0168] The lower plate 141 and the four frame materials 142 and the four fastening materials 143 and the multiple bottom surface materials 144 are assembled. First, as an example, the inner surfaces of the front and rear side frame materials corresponding to each other in the four frame materials are provided with quadrilateral insertion openings 1421 at certain intervals on the side section corresponding to the number of bottom surface materials 144, and multiple screw holes 145 for tightening screws are respectively penetrated on the two outer ends of the frame materials and the corresponding first and second fastening pieces 1431 and 1432.

[0169] Then, three of the four frame materials 142 except the frame material on the rear side are combined together, so that the four sides of the lower plate 141 are inserted into the insertion grooves 1422, and at the same time, the first and second fastening pieces 1431 and 1432 are respectively combined from the sides on the two ends of the fastening grooves 1421 of the front side and the left and right side frame materials corresponding to the two corners, and then screwed into the multiple screw holes 145 that are consistent with each other to fix them.

[0170] After doing so, the state in which the lower plate 141 and the front and left and right side frame materials 142 are combined is turned over, so that the multiple bottom surface materials 144 are arranged horizontally and closely against the bottom of the lower plate 141, and the front ends of the multiple bottom surface materials are inserted into the fastening grooves 1421 that pass through the front side frame material to be combined.

[0171] And after the first and second snap-fitting pieces 1431 and 1432 corresponding to a snap-fitting material 143 are respectively combined on the left and right ends of the rear side frame material 142 and fixed with screws, the first and second snap-fitting pieces that are not snap-fitted to the rear side frame material are respectively combined with the other ends of the left and right side frame materials that are not combined with the two ends of the front side frame material, so that the rear end portions of the multiple bottom surface materials 144 are respectively inserted into the multiple insertion ports 1421 of the rear side frame material.

[0172] After being combined in this way, the other first and second snap-fit ​​pieces 1431, 1432 that are not respectively fixed to the two ends of the rear side frame material 142 are combined with the other ends of the left and right side frame materials 142, so that the multiple screw holes 145 that are respectively passed through are consistent with each other, and then the screws are tightened to form a firmly assembled lower plate component 104.

[0173] On the other hand, a buckle pin 146 is fastened to a desired position on the lower surface of the front frame material 142 or on the lower surface of any of the plurality of bottom surface materials 144 in correspondence with the buckle device 160 provided on the rear frame member 101 .

[0174] The buckle pin 146 is as described later. In order to fold the cage car, the lower plate part 104 is rotated vertically and contacts the lower inner side surface of the rear frame part 101. The buckle belt part 161 of the buckle device 160 is pulled open and buckled, so that the folded lower plate part is tightly fixed on the lower inner side surface of the rear frame part 101, thereby preventing the occurrence of arbitrary reverse rotation or the release of the folded state.

[0175] The door base device 190 comprises a bottom plate 191 formed by extruding aluminum and cut to a desired length, and a buffer plate 192 formed by an elastic body such as polyurethane and bonded to the inner side of the bottom plate.

[0176] The bottom plate 191 is provided with a bottom plate 1911 and a The plurality of buckling grooves 1912 and the plurality of buckling grooves 1913 are formed vertically at the front and rear ends of the bottom panel in a slightly The upper end of the buckling groove portion at one end of the buckling groove portion at the two ends is vertically extended above the buckling groove portion and combined with the side joint groove portion 122 of the lower frame portion 120 and protrudes into a square upper end joint protrusion 1913 at the upper end and, in order to be combined with the lower end of the side joint groove portion, a square lower end joint protrusion 1914 protrudes at the corner where the lower end of the vertical part at one end and one end of the bottom sheet intersect at a right angle with the upper end joint protrusion, thereby forming a slightly side section. The shape of the composition.

[0177] The buffer plate 192 comprises a bottom panel portion 1921 disposed on the bottom panel 1911, two vertical sheet portions 1922 at both ends of the bottom panel portion, and a vertical sheet portion 1923 extending outwardly at the upper ends of the vertical sheet portions at both ends. The shape is symmetrically extended and combined with The engaging piece 1723 of the plurality of buckling grooves 1912 is formed in a shape, and thus is similar to the buffer plate 172, and has a side section that is slightly The shape of the composition.

[0178] The buffer plate 192 is placed on the side of the bottom plate 191, and multiple connecting pieces 1923 are inserted into the snap-fit ​​grooves 1912. The bottom of the bottom panel 1921 is connected to and supported by the top of the bottom panel 1911. The buffer plate is assembled to the bottom plate 191 by its own elasticity.

[0179] The door base support device 190 assembled in this way is that before assembling the front ends of the left and right side frame materials 142 on the left and right ends of the front side frame material 142, the upper end connecting protrusion 1913 and the lower end connecting protrusion 1914 are inserted into the upper and lower ends of the fastening groove 1421 on the front side of the front side frame material from the side and connected to the fastening groove, and then located in the middle part of the front side frame material. The upper part of the vertical part of the shape is firmly assembled by screwing screws into a plurality of screw holes corresponding to the fastening groove part at a certain interval on the left and right.

[0180] The door bottom support device 190 is as described later. When the left and right side door components 103, 103' are closed and lowered, the lower end parts of the corresponding right end and left end are clamped between the bottom panel 1911 of the bottom panel material 191 and the snap-fit ​​grooves 1912 at both ends. Then, the bottom of the corresponding parts are stably supported by the elasticity and buffering effect of the buffer plate 192, and are supported so as not to open at will. At the same time, no friction or various metallic sounds will occur when subjected to external impacts during movement.

[0181] In addition, the buffer plate 172 and the buffer component 192 are respectively connected to or separated from the bottom plate 171 and the bottom plate material 191 in the side direction, so anyone can easily replace them when they are worn or damaged after long-term use.

[0182] The left and right door components 103, 103' are provided with door locking components 106 so that the left and right door components cannot be opened at will after being closed.

[0183] Figure 12b is from Fig.12a The door locking component 106 is a plan view of an enlarged state of the door locking component selected from the left and right door components 103 and 103', which are respectively combined with the upper side parts of the right and left end two vertical parts of the buckle groove 111 when the front of the loading frame 100 is closed by the left and right door components 103 and 103' and fixed with bolts and nuts, and the left and right ring parts 1063 and 1064 are extended into a tubular shape with the same inner and outer diameters on the front ends of the left and right door components, and can be connected vertically up and down when the left and right door components are closed, so that the cross section is as follows and The shapes are formed symmetrically, and are composed of a locking pin 1065 which is vertically connected above the left and right ring parts that are vertically connected and closed to prevent the left and right ring parts from separating and locking, thereby preventing the left and right side door parts from being opened at will.

[0184] The locking pin 1065 comprises a pin portion 1065a having a predetermined length corresponding to the inner diameter of the left and right ring portions 1063 and 1064, a head portion 1065b having a larger inner diameter than the pin portion and disposed at the upper end thereof, and a The shape of the holding portion 1065c.

[0185] Therefore, the holding portion can be grasped to simply and conveniently connect or disconnect the locking pin 1065 on the left and right ring portions 1063 and 1064.

[0186] Fig.15 is from Figure 5 The perspective view of the left folded part is separated and enlarged. Fig.16 is from Fig.15 A perspective view showing a part of the foldable part setting status on the left side. Fig.17a ~c is from Fig.15 A plan view showing a portion of the foldable part on the left side being used.

[0187] The left hinge member 200 has a side section of The first and second left plates 211 and 221 are fixedly connected to the buckling groove 111 of the shape, and the first and second left fixed bearing parts 212 and 222 protrude and extend correspondingly from the front end parts of the inner and outer sides of the first and second left plates, and the first and second left bearing parts 213 and 223 protrude and extend correspondingly from the rear end parts of the inner and outer sides of the first and second left plates, so that the cross section is The shape and symmetry of The first and second left hinge pieces 201, 202 of the shape; the third left plate body 231 of the arc-shaped cross section and the third left and right end bearing parts 232, 233 of the same diameter as the first and second left bearing parts 213, 223 formed at both ends of the third left plate body constitute the cross section of The third left hinge piece 203 of a certain shape; the first left axis pin 204 which rotatably sets the first left bearing part and the third left end bearing part; the second left axis pin 205 which rotatably sets the second left bearing part and the third right end bearing part; and the left fixed axis pin 206 which fixes the first left fixed bearing part and the second left fixed bearing part by axis combination.

[0188] The first left fixed bearing portion 212 of the first left hinge piece 201 is, as an example, composed of two parts protruding separately from the front end portion of the inner side surface of the first left plate body 211, and the second left fixed bearing portion 222 of the second left hinge piece 202 is composed of one part protruding in the middle of the front end portion of the outer side surface of the second left plate body 221, and is then sandwiched between the two first left fixed bearing parts protruding separately from the front end portion of the inner side surface of the first left plate body.

[0189] On the other hand, the first and second left bearing parts 213 and 223 of the first and second left hinge pieces 201 and 202 are, as an example, composed of three protrusions that are separated by a certain interval at the upper, middle and lower rear end parts of the inner side surfaces of the first and second left plates 211 and 221.

[0190] The inner diameter of the first and second left fixed bearing parts 212 and 222 is set to be the same as the first and second left bearing parts 213 and 223. On the contrary, the thickness of the first and second fixed bearing parts is set thinner than the thickness of the first and second left bearing parts, so that the outer diameter of the first and second left fixed bearing parts is smaller than the outer diameter of the first and second left bearing parts, and then, in proportion to the thickness difference, the outer circumference inner ends of the first and second left fixed bearing parts and the inner circumference inner ends of the first and second left bearing parts are located on the same line.

[0191] Moreover, the centers of the first and second left fixed bearing parts 212, 222 are located on the same line as the front end surfaces of the first and second left plates 211, 221, and the centers of the first and second left bearing parts 213, 223 are located on a line separated by a predetermined interval from the rear ends of the first and second left plates toward the rear side.

[0192] The third left hinge piece 203 comprises a third left plate body 231 having an arc-shaped cross section and third left and right end bearing parts 232 and 233 formed on both ends of the third left plate body and having the same diameter as the second left front and rear bearing parts 213 and 223.

[0193] The third left and right end bearing parts 232 and 233 are, as an example, when the first and second left bearing parts 213 and 223 are composed of three parts, two of them are formed separately at the upper and lower ends of the third left plate body 231, and are sandwiched between the first and second left bearing parts of the three parts.

[0194] Furthermore, the first and second axle pins 204 and 205 are composed of a head with a larger diameter on the upper end than the axle hole and an E-shaped ring fastening groove formed around the outer periphery of the lower end, and the left fixed axle pin 206 is composed of a head 216 with a larger diameter on the upper end than the axle hole and a handle 226 extending vertically in a "┳" shape on its upper end.

[0195] When the rear end of the left frame part 102 is rotatably coupled to the left end of the rear frame part 101 using the two left hinge parts 200 constructed as described above, the first left plate 211 of the first left hinge piece 201 of the two left and right hinge parts is sequentially coupled and moved through the lower end on the snap-fit ​​groove part 111 of the right vertical part of the two vertical parts of the frame part 110 of the left frame part. The first one to be coupled is to make the multiple bolt holes passing through the middle of the first left plate body up and down coincide with the upper side pair of upper bolt fastening holes 115 that can be horizontally passed through the inner and outer surfaces on the upper side of the rear end vertical part, and then tighten the bolts and nuts to assemble. The other one to be coupled is to make the multiple bolt holes passing through the middle of the first left plate body up and down coincide with the upper side pair of multiple lower bolt fastening holes that can be horizontally passed through the inner and outer surfaces on the lower side of the rear end vertical part, and then tighten the bolts and nuts to assemble.

[0196] Moreover, on the snap-fit ​​groove portion 111 of the left vertical portion of the two vertical portions of the frame portion 110 of the rear frame component 101, the second left plate bodies 221 of the two second left hinge pieces 202 are sequentially combined and moved through the lower end, and the first one to be combined is to make the multiple bolt holes passing through the middle of the second left plate body from top to bottom coincide with the multiple upper and lower twisting holes that can be horizontally passed through the inner and outer surfaces on the upper side of the left vertical portion, and then tighten the bolts and nuts to assemble them, and the other one to be combined is to make the multiple bolt holes passing through the middle of the second left plate body from top to bottom coincide with the multiple upper and lower bolt twisting holes that can be horizontally passed through the inner and outer surfaces on the lower side of the left vertical portion, and then tighten the bolts and nuts to assemble them.

[0197] After the first and second left hinge pieces 201, 202 are respectively assembled at the upper and lower ends of the rear end of the left frame component 102 and the upper and lower ends of the left end of the rear frame component 101, the first and second left fixed bearing parts 212, 222 and the first and second left bearing parts 213, 223 of the first and second left hinge pieces become corresponding to each other.

[0198] In the described state, the third left bearing portion 232 of the third left hinge piece 203 is clamped between the first left bearing portion 213 of the first left hinge piece 201 assembled at the upper and lower rear ends of the left frame component 102, so that these axial holes are vertically connected, and the first left axle pin 204 can be inserted through from the top, and the E-shaped ring is fastened on the fastening groove formed on the lower end exposed at the lower part, so that the ground axis can be rotatably set, and the third right end bearing portion 233 of the third left hinge piece is clamped between the second left bearing portions 223 of the second left hinge piece 202 assembled at the upper and lower ends of the left end of the rear frame component 101, and then the ground axis can be rotatably set respectively with the second left axle pin 205.

[0199] The left-side frame component 102 axially arranged in this way is rotated forward at the left end of the rear frame component 101 using the first to third left hinge pieces 201 to 203 and the first and second left axle pins 204 and 205. The arc-shaped third left plate body is then rotated 90° around the second axle pin, so that the second left fixed bearing portion 222 of the second left plate body 221 is inserted into and clamped between the upper and lower first left fixed bearing portions 212 of the first left plate body 211. At the same time, the outer peripheral surface of the first left fixed bearing portion is supported by the left end of the frame portion of the rear frame, and the outer peripheral surface of the second left fixed bearing portion is supported by the rear end of the frame portion of the left-side frame component, thereby stopping rotation.

[0200] In this state, the multiple axial holes of the upper and lower first left fixed bearing parts 212 and the second left fixed bearing part 222 sandwiched therebetween are vertically connected, so that the left fixed axle pin 206 is inserted into these axle holes from above to form an axial connection, and the first and second left bearing parts 213, 223 and the third left and right end bearing parts 232, 233 axially connected by the first and second left axle pins 204, 205 respectively will not rotate, and the left side frame part 102 is rotated 90° forward at the left end of the rear side frame part 101, and is fixed in a state of forming a right angle with each other, thereby becoming the left side surface of the loading frame 100.

[0201] In the described state, the left fixed axle pin 206 axially coupled to the first and second left fixed bearing parts 212, 222 is removed, and the fixed state is released, so that the left side frame part 102 rotates toward the left rear of the rear side frame part 101. At this time, the range of positive and reverse rotation of the left side frame part is, starting from the position where the left side frame part rotates forward at the left end of the rear side frame part to form a right angle with each other, through the left and right side widths of the third left plate 231 and the first and second left axle pins 204, 205 and the first and second left bearing parts 213, 223 and the third left and right end bearing parts 232, 233 The left side frame part rotates to the left side of the rear of the rear side frame part, and then the left side of the left side frame part forms a parallel 270° with the back of the rear side frame part.

[0202] After the left side of the left side frame component 102 becomes parallel to the left side of the rear side frame component 101, a space for accommodating the left door component 103 which is set to 270° in the forward and reverse rotation range of the left and right door hinge components 400 is formed on the front end of the left side frame component in proportion to the left and right widths of the arc-shaped third left plate 231, as described later. Therefore, the rear side frame component, the left side frame component and the left side door component are folded in a state of parallel overlapping with each other, thereby minimizing the folded thickness.

[0203] In these processes, the left fixed shaft pin 206 separated from the first and second left fixed bearing parts 212 and 222 is combined with one of the first and second left fixed bearing parts, and does not need to be kept separately, which is very convenient and avoids the worry of loss.

[0204] Fig.18 is from Figure 5 The right side of the hinge is separated and enlarged to show the perspective view. Fig.19 is from Fig.18 A perspective view showing a portion of the hinge part on the right side of the display. Fig.20a ~c is from Fig.18 A plan view showing a portion of the hinge on the right side being used, with the enlarged portion selected.

[0205] The right hinge member 300 is a hinge member having a cross section slightly The back side panel is shaped as follows: The buckling groove 111 is combined with the fixed first right plate 311 and the first right bearing 312 protruding inwardly on the inner front end of the front side piece of the first right plate and the first right fixed bearing 313 protruding outwardly on the outer rear side of the front side piece. The first right hinge piece 301 of the shape; having a cross section slightly The shape and side profile are The second right plate 321 is combined with the buckling groove 111 of the second right plate, the second right bearing 322 is formed by extending from the end of the bent piece on the rear side of the outer side of the second right plate, and the second right fixed bearing 323 is formed by extending from the outer end of the straight piece on the front side of the outer side of the second right plate. The second right hinge piece 302 of the shape; the right axis pin 303 that rotatably sets the first and second right bearing parts; and the right fixed axis pin 304 that non-rotatably combines the first and second right fixed bearing parts.

[0206] In addition, the right shaft pin 303 is similar to the first and second shaft pins 204 and 205, and has a head with a larger diameter than the shaft hole at the upper end and an E-shaped ring fastening groove formed around the outer periphery of the lower end. The right fixed shaft pin 304 is similar to the left fixed shaft pin 206, and has a head with a larger diameter than the shaft hole at the upper end, and an E-shaped ring fastening groove formed around the outer periphery of the lower end. A handle that extends vertically.

[0207] On the other hand, the first right bearing portion 312 and the first right fixed bearing portion 313 of the first right hinge piece 301 are, as an example, formed by two separate protrusions from top to bottom, and the second right bearing portion 322 of the second right hinge piece 302 is formed by three separate protrusions from top, middle and bottom, so that the two first right bearing portions are sandwiched between these, and the second right fixed bearing portion 323 is one, so that it is sandwiched between the two first right fixed bearing portions.

[0208] When the rear end of the right frame member 102' is rotatably connected to the right end of the rear frame member 101 by using the two right hinge members 300 constructed as described above, the rear end vertical part of the two vertical parts of the frame portion 110 of the right frame member is The second right plate body 321 of the second right hinge piece 302 of the two right hinge parts is sequentially combined and moved in sequence through the lower end on the morphological snap-fit ​​groove portion 111, and the first one to be combined is to make the multiple bolt holes passing through the middle of the second right plate body from top to bottom consistent with the upper side pair of upper bolt tightening holes that can horizontally penetrate the inner and outer surfaces on the upper side of the rear end vertical part, and then tighten the bolts and nuts to assemble, and the other one to be combined is to make the multiple bolt holes passing through the middle of the second right plate body from top to bottom consistent with the upper side pair of multiple lower bolt tightening holes that can horizontally penetrate the inner and outer surfaces on the lower side of the rear end vertical part, and then tighten the bolts and nuts to assemble.

[0209] Furthermore, at the right end vertical portion of the frame portion 110 of the rear frame member 101 On the morphological snap-fit ​​groove 111, the first right plate bodies 311 of the two first right hinge pieces 301 are moved together in sequence through the lower end, and the first one to be combined is to make the multiple bolt holes passing through the upper and lower parts of the rear side of the first right plate body consistent with the upper side of the upper side multiple bolt tightening holes that can be horizontally passed through the inner and outer surfaces on the upper side of the right end vertical part, and then tighten the bolts and nuts to assemble. The other one to be combined is to make the multiple bolt holes passing through the middle of the first right plate body consistent with the lower side of the lower side multiple bolt tightening holes that can be horizontally passed through the inner and outer surfaces on the lower side of the rear end vertical part, and then tighten the bolts and nuts to assemble.

[0210] After the first and second right hinge pieces 301, 302 are respectively assembled at the upper and lower rear ends of the right frame part 102' and the upper and lower right ends of the rear frame part 101, the first and second right fixed bearing parts 313, 323 and the first and second right bearing parts 312, 322 of the first and second right hinge pieces become corresponding to each other.

[0211] In the above state, the first right bearing portion 312 of the first right hinge piece 301 is sandwiched between the second right bearing portion 322 of the second right hinge piece 302 assembled at the rear end of the right frame member 102', and the right shaft pin 303 is inserted through from above in a state where these shaft holes are vertically connected, and the E-shaped ring is fastened to the fastening groove formed on the lower end exposed at the bottom, so that the shaft can be rotatably arranged.

[0212] When the right side frame component 102' axially arranged in this way is rotated 90° counterclockwise at a right angle to the right end of the rear side frame component 101 with the first and second right hinge pieces 301, 302 and the right axle pin 303 as the axis, the second right fixed bearing portion 323 of the second right hinge piece is clamped between the first right fixed bearing portion 313 of the first right hinge piece, and the outer end portion of the second right fixed bearing portion is supported by the first right plate body 311 between the first right fixed bearing portions and stops and cannot be rotated further.

[0213] In this state, the multiple axial holes of the second right fixed bearing part 323 sandwiched between the upper and lower first right fixed bearing parts 313 are vertically connected, so that after the right fixed axle pin 304 is inserted from above through these axial holes and connected, the right side frame part 102' is rotated 90° forward at the right end of the rear side frame part 101, and is fixed in a state of forming a right angle with each other, thereby becoming the right side surface of the loading frame 100.

[0214] In the described state, the right fixed shaft pin 304 which is coupled to the first and second right fixed bearing parts 313 and 323 is separated and the fixed state is released, so that the right side frame part 102' rotates counterclockwise to form parallel with the front face of the rear side frame part 101. At this time, the right side frame part can rotate forward and reversely in the range from the position where the right side frame part forms a right angle with the right end of the rear side frame part to 90° parallel with the front face of the rear side frame.

[0215] After the left side of the right side frame part 102' becomes parallel with the front side of the rear side frame part 101, in proportion to the front and rear widths of the first right plate body 311, a space is formed between the left side of the right side frame part and the front side of the rear side frame part to accommodate the lower plate part 104 that is rotated upward and vertically erected in a horizontal state as described later. Therefore, the rear side frame part, the right side frame part and the lower plate part are folded in a state of overlapping and parallel to each other, thereby minimizing the folded thickness.

[0216] In the process, the right fixed shaft pin 304 separated from the first and second right fixed bearing parts 313 and 323 is placed in combination with one of the first and second right fixed bearing parts, and does not need to be kept separately, so it is very convenient and there is no worry about losing it.

[0217] Fig.21 is from Figure 5 A perspective view showing the left and right door hinge components of the first embodiment separated and enlarged, Fig. 22 is from Fig.21 A perspective view showing a portion of the left and right door hinge components being set up, Fig.23a , b is from Fig. 22 A partial enlarged plan view showing the left and right door hinge components in use. Fig.24 is from Fig. 22 A front view showing a portion of the left and right door hinge components in other usage states, which is enlarged.

[0218] Fig.21 The left and right door hinge components 400 of the first embodiment are composed of a first hinge plate body 411 having a buckling groove portion 111 connected and fixed to the frame portion 110, a first hinge piece 412 extending at a right angle to the left end side of the front face of the first hinge plate body, and first upper, middle and lower bearing portions 413, 414, 415 extending at the same interval from the front end of the first hinge piece. The first hinge portion 401 and is formed in a morphological manner; it has a second hinge plate body 421 and that is combined and fixed with the buckling groove portion, and a second hinge plate 422 and that intersects the first hinge plate with the same upper and lower lengths and extension widths at right angles and extends at the front end side of the second hinge plate body, and the lower ends of the upper and lower side parts in the middle of the front outer end of the second hinge plate are respectively supported by the upper ends of the first middle bearing portion and the first lower bearing portion, and the upper ends are supported by the lower ends of the first upper bearing portion and the first middle bearing portion, and the second upper bearing portion 423 and the second lower bearing portion 424 are formed by extending separately, so as to have a cross-section slightly The second hinge part 402 is formed in the shape of a door hinge shaft 403, which makes the first upper, middle and lower bearing parts and the second upper and lower bearing parts consistent with each other and connected to the axis.

[0219] When the left and right door hinge components 400 are firstly arranged on the front end of the left frame component 102, the front end vertical portion of the two vertical portions of the frame portion 110 of the left frame component is The first hinge plates 411 of the first hinge parts 401 of the two door hinge components are sequentially coupled and moved through the lower ends in the morphological snap-fitting groove 111 so that the first coupled one is located on the upper side of the front vertical part and the other coupled later is located on the lower side of the front vertical part. Then, the inner and outer surfaces of the upper and lower sides of the front vertical part are horizontally penetrated to form a pair of upper and lower multiple bolt fastening holes and a corresponding pair of upper and lower bolt holes on the first hinge plate body. After that, the bolts and nuts are tightened to assemble. Then, the second hinge plates 421 of the second hinge parts 402 of the two door hinge components are sequentially coupled and moved through the lower ends in the snap-fitting groove of the left end vertical part of the left door component so that the first coupled one is located on the upper side of the left end vertical part and the other coupled later is located on the left When the lower side of the vertical part of the left end is in a state where the inner and outer surfaces of the upper and lower sides of the vertical part of the left end can horizontally penetrate through a pair of upper and lower multiple bolt fastening holes and the corresponding pair of upper and lower bolt holes passed through the second hinge plate body are consistent, and then the bolts and nuts are fastened for assembly. Then, the lower end of the second upper bearing portion 423 of the second hinge plate body is supported by the upper end of the middle bearing portion 414 of the first hinge plate body, and the lower end of the second lower bearing portion 424 is supported and combined by the upper end of the first lower bearing portion 415, so that the first upper bearing portion 413 and the multiple axial holes of the first middle and lower bearing portions and the second upper and lower bearing portions are vertically connected, and the E-shaped ring is fastened on the lower end exposed to the bottom by combining with the door hinge shaft 403 from above, and the left door component is axially set at the front end of the left frame component through the first and second hinge portions.

[0220] At this time, the first hinge piece 412 of the first hinge part 401 is connected to the front outer side of the left frame member 102 toward the front, and the second hinge part 422 of the second hinge part 402 is connected to the left front side of the left end of the left door member 103 toward the left.

[0221] When the left door component 103 axially arranged in this way is rotated counterclockwise on the front end side of the left frame component 102, the left end of the second hinge plate body 421 is supported by the right side of the front end of the first hinge plate body 411 and cannot be rotated further. Therefore, the left door component becomes a state of intersecting with the front end of the left frame component at a right angle of 90°, and then becomes parallel to the front side of the rear frame component 101, closing the left side of the front side of the loading frame 100.

[0222] In the above state, when the left door component 103 is rotated clockwise, the left door component is rotated 270 degrees in parallel with the rear frame component 101 and is folded closely to the left side of the left frame component 102 .

[0223] In this state, as described later, the fastening belt portion 161 of the fastening device 160 assembled on the rear vertical portion is pulled open in the two vertical portions of the border portion 110 of the left frame portion 102, and is fastened to the left ring portion 1063 of the door locking portion 106 provided on the left door portion 103, so that the left door portion is fastened and fixed on the left side of the left frame portion and cannot be rotated at will.

[0224] On the other hand, the second upper bearing portion 423 and the second lower bearing portion 424 of the second hinge portion 402 assembled on the left door component 103 are supported by the first middle bearing portion 414 and the upper ends of the first lower bearing portion 415 of the first hinge portion 401 through an axial connection at each lower end, and the upper end of the second upper bearing portion and the lower end of the first upper bearing portion 413 located directly above it, as well as the upper end of the second lower bearing portion and the lower end of the first middle bearing portion located directly above it are separated by the same interval. The second hinge portion is assembled on the left end of the left door component, whereas the first hinge portion is assembled on the left frame component 102 which is axially arranged on the rear frame component 101 by the left hinge component 200 and cannot be raised or lowered. Therefore, the second hinge portion can be raised or lowered proportionally with the intervals between the upper ends of the second upper and lower bearings and the lower ends of the first upper and middle bearings.

[0225] Furthermore, the left door component 103 is configured to be able to rise and fall together with the second hinge part 402. In this state, the intervals between the multiple bearing parts of the second hinge part corresponding to the intervals at which the left door component can be raised and lowered can be achieved: after the left door component is closed and lowered, its lower end is placed on the left part of the door base device 190. In order to open the left door component and raise it, its lower end will not be stuck in the upper end coupling protrusion 1913 on the front side of the door base device, but can be opened or closed.

[0226] And when the right door component 103' is arranged on the front end of the right frame component 102' by using the left and right door hinge components 400, the front end vertical part of the two vertical parts of the frame part 110 of the right frame component is The first hinge plates 411 of the two door hinge components are sequentially coupled and moved through the lower ends on the morphological snap-fitting groove 111 so that the first coupled one is located on the upper side of the front vertical part and the other coupled later is located on the lower side of the front vertical part. Then, the inner and outer surfaces of the upper and lower sides of the front vertical part are horizontally penetrated to form a pair of upper and lower multiple bolt fastening holes and a corresponding pair of upper and lower bolt holes on the first hinge plate body. After that, the bolts and nuts are tightened to assemble. Then, the second hinge plates 421 of the second hinge parts 402 of the two door hinge components are sequentially coupled and moved through the lower ends on the snap-fitting groove of the right end vertical part of the right door component so that the first coupled one is located on the upper side of the right end vertical part and the other coupled later is located on the lower side of the right end vertical part. In this state, the inner and outer surfaces of the upper and lower sides of the vertical part of the right end are horizontally penetrated through a pair of upper and lower multiple bolt fastening holes and the corresponding upper and lower pairs of bolt holes passed through the second hinge plate body are aligned, and the bolts and nuts are fastened for assembly. Then, the lower end of the second upper bearing portion 423 of the second hinge plate body is supported by the upper end of the middle bearing portion 414 of the first hinge plate body, and the lower end of the second lower bearing portion 424 is supported and combined by the upper end of the first lower bearing portion 415, so that the first upper bearing portion 413 and the multiple axial holes of the first middle and lower bearing portions and the second upper and lower bearing portions are vertically connected. The E-shaped ring is tightly fastened on the lower end exposed to the bottom by combining with the door hinge shaft 403 from above, and the right side door component is rotatably and liftably arranged on the front end of the right side frame component through the first and second hinge portions.

[0227] In this state, the first hinge piece 412 of the first hinge part 401 is connected to the front outer side of the right frame part 102' toward the front, and the second hinge piece 422 of the second hinge part 402 is connected to the right front side of the right door part 103' toward the right.

[0228] When the right door component 103' axially arranged in this way is rotated counterclockwise on the front end side of the right frame component 102', the right end of the second hinge plate body 421 is supported by the left side of the front end of the first hinge plate body 411 and cannot be rotated further. Therefore, the right door component becomes a state of intersecting with the front end of the right frame component at a right angle of 90°, and then becomes parallel to the front side of the rear frame component 101, closing the right side of the front side of the loading frame 100.

[0229] In the above state, when the right door component 103' is rotated counterclockwise, the right door component is rotated 270 degrees in parallel with the rear frame component 101, and then the right door component is folded closely to the right side of the right frame component 102'.

[0230] In this state, the two vertical parts of the frame part 110 of the right frame part 102' are used to open the fastening belt part 161 of the fastening device 160 assembled on the rear vertical part, and fasten to the right ring part 1064 of the door locking part 106 provided on the right door part 103', so that the right door part is fastened and fixed on the right side of the right frame part and cannot be rotated at will.

[0231] On the other hand, the second upper bearing portion 423 and the second lower bearing portion 424 of the second hinge portion 402 assembled on the right side door component 103' are supported by the first middle bearing portion 414 and the upper ends of the first lower bearing portion 415 of the first hinge portion 401 through an axial connection at each lower end, and the upper end of the second upper bearing portion and the lower end of the first upper bearing portion 413 located directly above it, as well as the upper end of the second lower bearing portion and the lower end of the first middle bearing portion located directly above it are separated by the same interval. The second hinge portion is assembled on the right end of the right side door component, whereas the first hinge portion is assembled on the right side frame component 102' which is axially arranged on the rear side frame component 101 by the right side hinge component 300 in a non-liftable manner. Therefore, the interval between the second hinge portion and the upper ends of the second upper and lower bearings and the lower ends of the first upper and middle bearings can be raised and lowered proportionally.

[0232] Then the right door component 103' is arranged to be able to rise and fall together with the second hinge part 402. In this state, the intervals between the multiple bearing parts of the second hinge part corresponding to the intervals at which the right door component can be raised and lowered can reach the position where the lower end of the right door component is placed on the right part of the door base support device 190 after the right door component is closed and lowered. In order to open the right door component and raise it, the lower end of the right door component will not be stuck on the upper end coupling protrusion 1913 on the front side of the door base support device, but can be opened or closed.

[0233] By means of the left and right side door hinge components 400 constructed as described above, the left and right side frame components 102, 102' can be opened and closed by lifting and lowering at the same intervals. After closing, they are lowered, and the corresponding lower end parts of the left and right side frame components are placed on the door base support device 190. When the upper part is locked by the door locking component 106, the closed state can be stably maintained without the phenomenon of being opened at will or shaking when moving.

[0234] Fig.25 is from Figure 5 A perspective view showing the left and right door hinge components of the second embodiment of the invention is shown in FIG. Fig.26 is from Fig.25 A perspective view showing a portion of the left and right door hinge components being set up, Fig.27a , b from Fig.26A partial enlarged plan view showing the left and right door hinge components in use. Fig.28 is from Fig.26 A front view showing a portion of the left and right door hinge components in other usage states, which is enlarged.

[0235] Fig.25 The left and right door hinge components 400 of the second embodiment are composed of a side section having a frame portion 110 and a side section having a The first hinge plate body 411 is connected with the buckling groove 111 of the first hinge plate body, the first hinge piece 412 is extended at a right angle to the front outer end side of the first hinge plate body, and the first upper, middle and lower bearing parts 413, 414, 415 are extended at the same interval from top to bottom at the front end of the first hinge piece. The first hinge portion 401 and is formed in the form of a first hinge portion 401 and; it has a second hinge plate body 421 and that is combined and fixed with the locking groove portion, and a second hinge plate 422 and that intersects the first hinge plate with the same upper and lower lengths and extension widths at right angles and extends at the front end side of the second hinge plate body, and the upper and lower middle parts of the front outer end of the second hinge plate are respectively clamped between the first upper bearing portion and the first middle bearing portion and between the first middle bearing portion and the first lower bearing portion, and the second upper bearing portion 423 and the second lower bearing portion 424 formed by vertically connecting and extending, thereby forming a cross-section slightly The second hinge part 402 is formed in the shape of a door hinge; the first upper, middle and lower bearing parts and the second upper and lower bearing parts are aligned with each other in the upper and lower directions and the door hinge axis 403 is connected with the axis; and the limit device 404 is assembled with bolts on the upper side of the first hinge piece separated by a predetermined interval from the upper end of the snap-fit ​​groove part connected to the first hinge part.

[0236] When the right end of the right door component 103' is first set at the front end of the right frame component 102' using the left and right side door hinge components 400 constructed as described above, a pair of upper and lower bolt holes are respectively penetrated on the upper side and lower end of the right end vertical part of the two vertical parts of the frame part 110 of the right door component, and corresponding to these pairs of bolt holes, a pair of upper and lower bolt holes are also penetrated on each second hinge plate body 421 of each second hinge part 402 of the two door hinge components. Then, through the lower end of the right end vertical part, the second hinge plates of the two door hinge components are sequentially combined and moved on the snap-fit ​​groove part 111, so that the multiple bolt holes penetrated on the first second hinge plate body are consistent with the multiple bolt holes penetrated on the upper side of the right end vertical part, and then the bolts are tightened to assemble, and the multiple bolt holes penetrated on the other second hinge plate body that is combined later are consistent with the multiple bolt holes penetrated on the lower end of the right end vertical part, and then the bolts are tightened to assemble.

[0237] After being set in this way, the two second hinge parts 402 are fixedly set at the upper side and lower end of the right end vertical part of the two vertical parts of the frame part 110 of the right door component 103'. In this state, the second hinge piece 422 of the second hinge part is combined to the right at the outer front end of the second hinge plate body 421.

[0238] Then, the second upper bearing portion 423 of the second hinge portion 402 is sandwiched between the first upper and middle bearing portions 413 and 414 of the first hinge portion 401, and the second lower bearing portion 424 is sandwiched between the first middle bearing portion and the first lower bearing portion 415, so that the multiple axial holes of the multiple bearing portions are vertically connected, and the door hinge shaft 403 is combined from above, and the E-shaped ring is fastened at the lower end exposed downward, so that the first hinge portion shaft is combined with the second hinge portion.

[0239] After such arrangement, two door hinge components 400 are arranged on the upper side and the lower end of the right vertical portion of the two vertical portions of the frame portion 110 of the right door component 103 ′.

[0240] Then, the first hinge plate bodies 411 of the first hinge parts 401 of the two door hinge parts 400 are inserted and moved in sequence through the lower ends of the front end vertical parts of the two vertical parts of the frame part 110 of the right frame part 102', so that the lower end of the first hinge plate body of the lower hinge part of the two door hinge parts and the lower end of the front end vertical part are located on the same horizontal line. Then, as described later, the setting component 107 in which the caster 600 is set on the lower front end part of the right frame part 102' is assembled on the lower frame part 120 with bolts to seal the lower end of the front end vertical part, so that the lower end of the first hinge part is supported by the top of the setting component to prevent it from detaching.

[0241] Accordingly, the first hinge plate 411 of the first hinge part 401 is not assembled to the front vertical part of the right frame part 102' by bolts, but is slidably and liftably connected to the snap-fit ​​groove part 111, and then the right door part 103' is arranged at the front end of the right frame part 102' and rotated and lifted by the door hinge part 400.

[0242] The range of the right door component 103' that can be raised and lowered in this way is proportional to the interval between the limit device 404 fixed by bolts on the front vertical part of the right frame component 102' and the upper end of the first hinge plate body 411 when the right door component is lowered. At this time, the first hinge piece 412 is on the front outer side of the first hinge piece facing forward, and the second hinge piece 422 is arranged on the outer end of the second hinge plate body 421 facing the right.

[0243] Moreover, the interval at which the right door component 103' and the first hinge part 401 are lifted and lowered together is: after the right door component is closed and lowered, its lower end is placed on the right part of the door base device 190. In order to open the right door component and raise it, its lower end will not be stuck on the upper end coupling protrusion 1913 on the front side of the door base device, but can be opened or closed.

[0244] When the right door component 103' which is axially arranged in this way is rotated clockwise on the front end side of the right frame component 102', the right end of the second hinge piece 422 is supported by the right side of the front end of the first hinge plate body 411 and cannot be rotated further. Therefore, the right door component becomes a state of intersecting with the front end of the right frame component at a right angle of 90°, and then becomes parallel to the front side of the rear frame component 101, thereby closing the right side of the front side of the loading frame 100.

[0245] In the above state, when the right door component 103' is rotated counterclockwise, the right door component is rotated 270 degrees in parallel with the rear frame component 101, and then the right door component is folded and closely attached to the left side of the right frame component 102'.

[0246] In this state, the fastening belt portion 161 of the fastening device 160 assembled on the rear end vertical portion is pulled open between the two vertical portions of the frame portion 110 of the right frame portion 102' and fastened to the right ring portion 1064 of the door locking portion 106 provided on the right door portion 103', and the right door portion is then fastened and fixed on the left side of the right frame portion and cannot be rotated at will.

[0247] Moreover, when the left end of the left door component 103 is set at the front end of the left frame component 102 using the left and right door hinge components 400, a pair of upper and lower bolt holes are respectively penetrated at the upper side and lower end of the left vertical part of the two vertical parts of the frame part 110 of the left door component, and corresponding to these pairs of bolt holes, after a pair of upper and lower bolt holes are also penetrated on each second hinge plate body 421 of the two second hinge parts 402 of the door hinge component, the second hinge plates are sequentially combined and moved on the snap-fit ​​groove part 111 through the lower end of the vertical part, so that the multiple bolt holes penetrated on the first second hinge plate body are consistent with the multiple bolt holes penetrated at the lower end of the left vertical part, and then the bolts are tightened to assemble, and the multiple bolt holes penetrated on the other second hinge plate body that is combined later are consistent with the multiple bolt holes penetrated at the lower end of the left vertical part, and then the bolts are tightened to assemble.

[0248] After being set in this way, the two second hinge parts 402 are fixedly set at the upper side and lower end of the left end vertical part of the two vertical parts of the frame part 110 of the left door component 103. In this state, the second hinge piece 422 of the second hinge part is combined at the outer front end of the second hinge plate body 421 toward the left side.

[0249] Then, the second upper bearing portion 423 of the second hinge portion 402 is sandwiched between the first upper and middle bearing portions 413 and 414 of the first hinge portion 401, and the second lower bearing portion 424 is sandwiched between the first middle bearing portion and the first lower bearing portion 415, so that the multiple axial holes of the multiple bearing portions are vertically connected, and the door hinge shaft 403 is combined from above, and the E-shaped ring is tightly fastened at the lower end exposed downward, so that the first hinge portion shaft is combined with the second hinge portion.

[0250] After such arrangement, two door hinge components 400 are arranged on the upper side and the lower end of the left vertical portion of the two vertical portions of the frame portion 110 of the right door component 103 ′.

[0251] Then, the first hinge plate bodies 411 of the first hinge parts 401 of the two door hinge parts 400 are inserted and moved in sequence through the lower ends of the front vertical parts of the two vertical parts of the frame part 110 of the left frame part 102, so that the lower end of the first hinge plate body of the lower hinge part of the two door hinge parts and the lower end of the front vertical part are located on the same horizontal line. Then, as described later, the setting part 107 set on the lower front end part of the caster 600 on the left frame part 102 is assembled with bolts to seal the lower end of the front vertical part, so that the lower end of the first hinge part is supported by the top of the setting part to prevent it from detaching.

[0252] Furthermore, the first hinge plate 411 of the first hinge part 401 is not assembled to the front end vertical part of the left frame part 102 by bolts, but is slidably and liftably connected to the snap-fit ​​groove part 111, so that the left door part is arranged at the front end of the left frame part and rotated and lifted through the door hinge part 400.

[0253] In this state, the range in which the first hinge part 401 can be raised and lowered is proportional to the distance between the stopper 404 bolted to the front vertical portion of the left frame member 102 and the upper end of the first hinge plate 411 when the left door member is lowered.

[0254] Moreover, the interval at which the left door component 103 and the first hinge part 401 are lifted and lowered together is: after the left door component is closed and lowered, its lower end is placed on the left part of the door base device 190. In order to open the left door component and raise it, its lower end will not be stuck on the upper end coupling protrusion 1913 on the front side of the door base device, but can be opened or closed.

[0255] When the left door component 103 axially arranged in this way is rotated counterclockwise on the front end side of the left frame component 102, the left end of the second hinge piece 422 is supported by the left side of the front end of the first hinge plate body 411 and cannot rotate further. Therefore, the left door component becomes a state of intersecting with the front end of the left frame component at a right angle of 90°, and then becomes parallel to the front of the rear frame component 101, closing the left side of the front of the loading frame 100.

[0256] In the above state, when the left door component 103 is rotated clockwise, the left door component is rotated 270 degrees in parallel with the rear frame component 101, and then the left door component is folded and closely attached to the left side of the left frame component 103'.

[0257] In this state, the two vertical parts of the frame part 110 of the left frame part 102 are used to open the fastening belt part 161 of the fastening device 160 assembled on the rear vertical part, and fasten to the left ring part 1063 of the door locking part 106 provided on the left door part 103. Then, the left door part is fastened and fixed on the left side of the left frame part and cannot be rotated at will.

[0258] Fig.29 13 is a perspective view showing the left and right lower plate hinge components separated and enlarged, Fig.30a , b is from Fig.29 A side view showing a portion of the left and right lower plate hinge components in use in an enlarged manner.

[0259] The left and right lower plate hinge components 500 include a front hinge piece 511 and a front hinge portion 501 having three front bearings 512 extending at certain intervals to the left and right at the upper rear end of the front hinge piece, and a rear hinge portion 502 having two rear bearings 522 sandwiched between the rear hinge piece 521 and the three front bearings and extending to the upper front end of the rear hinge piece. The front and rear bearings are combined with axial holes connected to the left and right sides, and can be horizontally connected on one side and the end exposed on the other side is fastened with an E-shaped ring, so that the front and rear hinge parts are composed of a hinge shaft 503 set by the shaft.

[0260] The front hinge part 501 of the left and right side lower plate hinge parts 500 is assembled on the left and right sides of the rear of the lower plate part 104, and the rear hinge part 502 is assembled on the left and right sides of the inner surface of the lower frame part 120 of the rear frame part 101. The lower plate part can be rotated horizontally and vertically through the axis setting. In the vertical rotation state, the buckling device 160 pulls the buckling belt 161 and buckles it to the buckle pin 146 provided on the lower plate part, so that the lower plate part is fixed tightly against the front lower side of the rear frame part.

[0261] Fig.31is from Figure 5 A perspective view showing a part of the caster installation that is magnified. Fig.32 is from Fig.31 A perspective view showing the casters and the set parts separated and enlarged. Fig.33 is from Fig.31 A portion of the caster setting is selected and the enlarged side sectional view is taken.

[0262] Fig.31 The caster 600 is commonly used, but the feature of the present invention is that the caster is not welded and assembled on the four lower corners of the loading frame 100, but other setting parts 107 formed of aluminum are used, so that the caster can be easily loaded and unloaded.

[0263] The setting member 107 comprises a setting plate portion 1071 and a setting groove portion 1072 formed by bending two sections facing each other on the left and right sides of the setting plate portion, left and right fixing pieces 1073 extending vertically and parallel to each other on the left and right sides of the setting plate portion at intervals proportional to the width of the left and right sides of the lower frame portion 120, and twisting grooves 1074 formed on the four corners of the lower side of the setting plate portion, so as to form a side section slightly The shape of the composition.

[0264] The setting component 107 is assembled on the lower frame portion by inserting the lower frame portion 120 into the left and right fixing pieces 1073 and then passing bolts and nuts through a plurality of bolt holes corresponding to the left and right fixing pieces and the lower frame portion and twisting them together.

[0265] Then, the left and right ends of the fixing plate portion 601 on the top of the caster 600 are respectively inserted into the setting groove portions 1072 formed on the left and right sides of the bottom of the setting plate portion 1071 for combination, so that the multiple bolt holes on the fixing plate portion are consistent with the multiple twisting grooves 1074 formed by the depressions on the bottom of the setting plate portion 1071, and then the bolts are tightened respectively for assembly.

[0266] Therefore, during use, when the caster 600 is damaged, the bolts fastened to the fastening groove 1074 are unscrewed, and the caster is simply replaced, and the cage trolley can continue to be used, thereby preventing the existing cage trolleys in which the casters are welded and assembled, where the cage trolley cannot be used as long as the casters are damaged, resulting in a shortened service life.

[0267] Fig.34a ~e is the display Figure 4a , Figure 4b Plan view and perspective view of the folding process of the light cage truck.

[0268] When the foldable light cage vehicle of the present invention is folded, as an example, if Figure 4a In the state, if Fig.34a As shown in FIG. 1 , first, the left and right door members 103 and 103 ′ are opened and rotated toward the outer sides (left and right sides) of the left and right frame members 102 and 102 ′, respectively.

[0269] Then, if Fig.34b As shown, when the left and right door components 103, 103' are respectively in close contact with the outside of the left and right frame components 102, 102', the fastening belt 161 of the fastening device 160 is pulled open and fastened to the left and right ring parts 1063, 1064 of the left and right door components, so that the left and right door components are closely attached to the outside of the left and right door components and fixed, the support component 105 is in a horizontally fixed state, the hook part 1054 is separated from the hook pin part 1053 and rotated downward, and the lower end part is fastened to the fastening part 1055 to be fixed to the left frame component in a vertical state, and then the lower plate component 104 is rotated upward to be in close contact with the inner surface of the rear frame component 101, and the fastening belt of the fastening device is pulled open and fastened to the buckle 146, and then it is closely attached to the inner surface of the rear frame component and fixed.

[0270] After doing so, if Fig.34c As shown, the left frame member 102 with the left door member 103 fixed on the outside is rotated 270° in the clockwise direction so that the left door member is sandwiched between the left door member and the left rear side of the rear frame member 101 and folded, and then closely attached to each other in a parallel state.

[0271] In the state described, if Fig.34d As shown, the right door component 103' is tightly attached to the right frame component 102' fixed on the outside and rotated 90° in the clockwise direction, so that the right door component is tightly attached to the lower plate component 104 tightly attached to the right inner surface of the rear frame component 101. Therefore, with the lower plate component sandwiched between the right frame component and the rear frame component, the right door component, the right frame component and the lower plate component are tightly attached to the inner surface of the rear frame component in a parallel state.

[0272] After the cage car is folded as described above, the left and right side frame parts 102, 102' and the lower plate part 104 as well as the left and right side door parts 103, 103' are all folded closely to each other on the back and inner surface of the rear frame part 101, so that the folded thickness of the cage car is minimized. Therefore, even if the space is small, multiple cage cars can be stored or loaded.

[0273] In addition, when you need to use a folded cage, just open it in the reverse order of folding.

[0274] The foldable light cage trolley of the present invention constructed as described above has the advantage that all components except the casters are formed of aluminum and are assembled without welding. Compared with the existing foldable cage trolleys, the weight is reduced by more than 40%, so it is very simple and easy to use and maintain. While the operability and production efficiency are greatly improved, the cleanliness is excellent and can be used for a long time. It can also be widely used in the handling or transportation of goods in various fields such as general industrial products and even medical supplies, food, and precision instruments.

[0275] And its characteristic is that after folding, the thickness becomes minimized, which is very convenient for storage and space utilization. During use, even if a part is damaged, the corresponding part can be simply disassembled for repair or replacement. Therefore, it can not only prevent the service life from being shortened, but also can be reused when discarded, without causing huge waste of resources and costs.

[0276] Fig.35 is a perspective view schematically showing a foldable light cage vehicle according to another embodiment of the present invention. Fig.36 Yes Fig.35 A portion of the perspective view is omitted.

[0277] Fig.35 , 36 Another embodiment of the foldable light cage vehicle of the present invention is a structure comprising: a side section The square tube is formed by bending The frame portion 110 and the side section are The lower frame portion 120 is formed in a tubular shape and the side section is A loading frame 100 is formed by a horizontal bracket 130 formed of a shaped tube, a vertical bracket 140 formed of a tube with a small diameter, a sealing cap 150 formed of a synthetic resin, and a rear frame component 101 formed by a snap-fit ​​device 160, left and right frame components 102, 102' rotatably combined at the left and right ends of the rear frame component, left and right door components 103, 103' rotatably combined at the front ends of the left and right frame components, a lower plate component 104 rotatably combined at the lower end of the inner side surface of the rear frame component, and a door locking component 106 provided on the left and right door components; the left The side frame member comprises a left hinge member 200 rotatably connected to the left end of the rear frame member; a right hinge member 300 rotatably connected to the right end of the rear frame member; a left and right door hinge members 400 rotatably connected to the front ends of the left and right frame members and liftable within a certain interval; a lower plate hinge member 500 rotatably connected to the lower end of the front face of the rear frame member; and casters 600 respectively connected to the left and right ends of the lower side of the rear frame member and the lower front ends of the left and right frame members. Except for the casters, the loading frame, hinge member, door hinge member and lower plate hinge member are all made of aluminum, and the respective structures of the components and their assembly states are also the same as those of the embodiment of the present invention. Figure 1 , 2 The foldable light cage vehicle of the present invention is the same.

[0278] However, it is characterized in that the structure also includes: a fixing component 108 that fixes the lower plate component 104 that is formed horizontally by rotating vertically downward so as not to be lifted up at will; by changing the structure, the casters 600 are arranged on the inner sides of the four lower corners of the loading frame 100 to prevent the casters from being exposed to the outer sides of the four corners of the loading frame while supporting the setting component 107 of the lower plate component that is rotated downward to form a horizontal position; and a safety component 109 that is arranged on the lower ends of the rear frame component 101 and the left and right side frame components 102, 102' to prevent safety accidents such as feet or ankles being caught in the space between these lower sides and the ground and getting injured.

[0279] Fig.37 is from Fig.35 A perspective view showing an enlarged view of a selected lower panel component. Fig.38 is from Fig.35 A perspective view showing the lower panel hinge parts separated and enlarged. Fig.39a , b is Fig.38 A side sectional view showing the middle and lower plate hinge components in use in an enlarged manner.

[0280] The lower plate member 104 is Figure 3Similarly, the lower plate component is composed of: a lower plate 141 in the shape of a quadrilateral flat plate; four frame materials 142 and 143 that are combined on the four sides of the lower plate; fastening materials that buckle the four corners of the frame materials; and a plurality of bottom materials that cross the bottom of the lower plate and connect the two ends to the inner lower side of the corresponding two frame materials.

[0281] However, the feature is that the four frame materials 142 are provided with a side section slightly showing a The lower plate 141 is inserted into the insertion groove 1422 formed on the upper end side of the inner surface, and then the side section is slightly The shape of the composition.

[0282] As described later, on each fastening groove portion 1421 of the left and right side frame materials 142 of these lower plate components 104, one of the two end portions is combined with the fixing plate portion 1281 of the side connection stop device 1082, and the fixing bolts 1282 are screwed into the bolt holes respectively penetrated at the corresponding positions for assembly.

[0283] The left and right lower plate hinge parts 500 have a structure including: a front hinge piece 511 and three front bearings 512 extending at certain intervals to the left and right at the upper rear end of the front hinge piece, a rear hinge part 502 having two rear bearings 522 extending to be sandwiched between the three front bearings at the upper front end of the rear hinge piece, and a hinge shaft 503 which is axially set by fastening an E-shaped ring on the end exposed on the other side after the front and rear hinge parts are combined.

[0284] The front hinge part 501 of the left and right lower plate hinge parts 500 is installed on the left and right sides of the rear of the lower plate part 104, and the rear hinge part 502 is installed on the left and right inner surfaces of the lower frame part 120 of the rear frame part 101, and then the lower plate part can be rotated horizontally and vertically through the axis setting.

[0285] Fig.40 is from Fig.35 A perspective view showing the separation and enlargement of the fixed parts of the lower plate parts. Fig.41a , b is display Fig.40 A side sectional view of the separation and assembly state of the fixing parts, Fig.42a ~c is from Fig.40 The middle excerpt shows an enlarged plan view and a partially cut-away side view of the state in which the lower plate component is fixed by a fixing component.

[0286] The fixing component 108 is used to fix the lower plate component 104 in a horizontal state when the cage truck is used to prevent it from being lifted up by the fork at will. It has a fixing device 1081, a stopping device 1082 and first and second fixing bolts 1083 and 1084.

[0287] The fixing device 1081 is provided on the inner upper side of each lower frame portion 120 of the left and right frame members 102 and 102'. The side combining groove portion 122 is movably connected to a movable plate 1181, a fixed plate 1182 extending horizontally inward from the middle part of the inner surface of the movable plate, a first and a second spiral holes 1183 and 1184 vertically penetrated from the front and rear parts on the same line of the fixed plate, and a supporting plate 1185 extending vertically downward from the inner end of the fixed plate.

[0288] The fixing device 1081 is connected to the inner surface of the lower frame portion 120 so as to be movable forward and backward through the movable piece 1181 connected to the side connection groove portion 122 .

[0289] The stopper 1082 is formed such that the front and rear widths correspond to the intervals between the first and second spiral holes 1183 and 1184, and the side section of the lower plate member 104 is slightly The front, rear, left and right four frame materials 142 of the shape are combined with the upper and lower ends of the fixing sheet 1281 on the upper and lower fastening grooves 1421 set on the outside of the left and right frame materials, and the fixing bolts 1282 are assembled on the outside of the left and right frame materials by twisting the spiral holes passing through the fixing sheet and the corresponding spiral holes passing through the outside between the upper and lower fastening grooves, and the fixing sheet 1281 is horizontally extended outward from the upper end of the outside of the fixing sheet 1281 and the lower end of the support sheet 1185 is supported by it, and the stop sheet 1284 is supported under the fixing sheet where the lower ends of the first and second spiral holes passing through the front and rear parts on the same line are located.

[0290] The stopping device 1082 has its rear end located in front of the front end of the fixing device 1081 and is assembled on the left and right frame materials 142 with fixing bolts 1282. The fixing device has its front end located behind the rear end of the stopping device and is movably connected to the connecting groove portion 122 of the lower frame portion 120 forward and backward.

[0291] And if Fig.42a As described above, when the front end of the fixing device 1081 is located behind the rear end of the stopping device 1082, the first fixing bolt 1083 is twisted so that its lower end is not exposed at the bottom of the first spiral hole 1183, and the second fixing bolt 1084 is completely twisted so that its lower end is exposed at the bottom of the second spiral hole 1184.

[0292] In the described state, the lower side through which the first and second spiral holes 1183 and 1184 of the fixing plate 1182 are penetrated and the upper end surface of the stopping plate 1284 are located on the front and rear sides of the same horizontal line, and the positions of the fixing device 1081 and the stopping device 1082 are staggered with each other, so that the lower plate component 104 can be rotated from a horizontal state to a vertical state or from a vertical state to a horizontal state.

[0293] Then, the lower plate member 104 is placed in a horizontal state, and the fixing device 1081 is moved forward. Then, the lower end of the fixing plate 1182 passes through the first and second spiral holes 1183 and 1184, and is supported by the upper end surface of the stop plate 1284 and moves forward. The lower end of the second fixing bolt 1084 exposed at the lower part of the second spiral hole is as shown in FIG. Figure 42b As shown in , the forward movement is stopped after being stuck to the rear end of the bottom plate.

[0294] At this time, the lower end of the first spiral hole 1183 is located directly above the front end of the stop plate 1284, so the first fixing bolt 1083 is tightened, and its lower end is exposed to the bottom of the first spiral hole, thereby clamping the front end of the bottom plate.

[0295] After doing this, Fig.42c As shown in the figure, the stopping device 1082 is supported and fixed by the fixing device 1081 and cannot rise at will. At the same time, the fixing device is fixed on the stopping device by the first and second fixing bolts 1083 and 1084 and cannot move forward or backward at will. Therefore, during the use of the cage truck, especially when it is moved by a forklift, the lower plate component 104 will not be lifted by the fork.

[0296] Then, in order to fold the cage car for storage, when the lower plate part 104 is rotated vertically, only the first fixing bolt 1083 that was tightened first is unscrewed and raised so that its lower end cannot be exposed to the lower part of the first spiral hole 1183, and then the fixing device 1081 is moved backward so that its front end is located behind the rear end of the stopping device 1082, and then the lower plate part is rotated vertically in the reverse direction.

[0297] Fig.43 is from Fig.35 A perspective view showing a selection of casters and set parts, Fig.44a Yes Display Fig.43 Front view of the combined state of the middle caster and the setting parts, Figure 44b Yes Display Fig.44a A front view of a state in which the middle caster is assembled to the lower frame portion with the setting component combined therewith. Fig.45 Yes Display Fig.43 A perspective view of a state in which casters are arranged on the inner sides of the four lower corners of a cage vehicle through setting components.

[0298] The caster 600 is consistent with the caster in the invention previously applied for by the applicant, and the setting component 107 for setting the caster is characterized in that the structure of the setting component of the prior application is modified, and the caster is not located at the four corners of the loading frame 100, but is located on the inner side of the four lower corners of the lower plate component 104, so as to prevent the caster from being exposed to the outside of the four corners of the loading frame while supporting the inner side of the four lower corners of the lower plate component.

[0299] The setting component 107 is a setting plate portion 1071 whose left and right widths are wider than those of the setting plate portion of the prior invention, a setting groove portion 1072 formed by bending two sections on the left and right sides of the lower left side portion of the setting plate portion and extending opposite to each other so that the left and right end portions of the fixing plate portion 601 arranged on the caster 600 are respectively inserted into the locking groove portion, and left and right fixing pieces 1073 extending vertically and parallel to each other at intervals proportional to the width of the inner and outer surfaces of the lower frame portion 120 on the left and right sides of the upper right side portion of the setting plate portion, a twisting groove 1074 formed on the front, back, left and right sides of the left side portion of the setting plate portion between the setting grooves, and a bottom supporting surface portion 1075 that can support the inner parts of the four lower corners of the lower plate component 104 between the left ends of the setting plate portion 1071 starting from the left side of the left fixing piece of the left and right fixing pieces 1073.

[0300] The setting component 107 is assembled on the lower frame portion by inserting the lower frame portion 120 into the left and right fixing pieces 1073 and then threading bolts and nuts through a plurality of bolt holes corresponding to the left and right fixing pieces and the lower frame portion.

[0301] Moreover, after the left and right ends of the fixing plate portion 601 arranged on the caster 600 are respectively inserted into the setting groove portion 1072 formed on the lower left portion of the setting plate portion 1071 for combination, the bolts are respectively tightened in the multiple bolt holes respectively penetrating the four corner portions of the fixing plate portion and the tightening groove 1074 arranged on the left portion of the setting plate portion 1071 in line with these bolt holes up and down for assembly.

[0302] After the casters 600 are respectively set on the lower frame parts 120 of the rear frame part 101 and the left and right frame parts 102 and 102' using the setting part 107, the multiple casters are located on the inner side of the lower four corners of the lower plate part 104 and will not be exposed to the outer sides of the four corners of the loading frame 100.

[0303] Therefore, when the cage truck is moved, the caster 600 can be prevented from accidentally hitting the foot or other objects, thereby ensuring safe use.

[0304] In addition, after the lower plate component 104 is rotated to a horizontal state, the four corner portions below it are supported by the bottom supporting surface portion 1075 of each setting plate portion 1071, and at the same time, a plurality of casters 600 arranged under the left side portions of the plurality of setting plate portions support the left side portion of the setting plate portion. Therefore, when loading goods on the upper side of the lower plate component, even if the load is applied to the lower plate component, it is supported by the plurality of casters located on the inner side of the four corners below. Therefore, during long-term use, the lower plate component will not sag but remain in a horizontal state.

[0305] Fig.46a , b is from Fig.35 The front and side views of the safety components are enlarged and shown in the figure. Fig.47a is from Fig.46a Selected safety parts are enlarged and shown in front and perspective views. Fig.47b is from Fig.47a Selected safety components are shown separated in the front and perspective views.

[0306] Fig.46a The safety component 109 of the present invention is structured as follows: the lower ends of the two vertical parts of the rear frame component 101 and the left and right frame components 102 and 102' extend close to the ground to form The frame portion 110 and has two ends respectively fixed to the inner surface of the lower ends of the two vertical parts and the inner surfaces of the two vertical parts are horizontally crossed to assemble the safety bar 1091 and the buffer pad 1092 is formed of elastic material such as rubber or polyurethane and is buckled on the safety bar in the form of wrapping the outer side surface of the safety bar.

[0307] The safety strip 1091 has a first buckling groove 119 formed by a depression on the outer side of the upper side and a lower inner middle portion. When the two ends of the safety strip are fixed to the inner surface of the lower end of the two vertical parts of the frame portion 110, the screw fastening openings 1192 and the screw fastening openings 1192 of the two ends are fastened with screws, so that The second buckle groove 1193 is provided at the bottom, and the side section is slightly Tubular formation of morphology.

[0308] The buffer pad 1092 has an upper and lower length corresponding to the upper and lower width of the outer side of the safety strip 1091, an upper buckling portion 1291 extending from the upper end to the inner side in two sections and buckled at the end of the first buckling groove 1191, and a lower buckling portion 1292 extending from the lower end to the inner side in two sections and buckled at the outer end of the second buckling groove 1193, so as to have a side section slightly morphological formation.

[0309] When the buffer pad 1092 is buckled on the safety strip 1091, on one side of the safety strip, the upper buckling portion 1291 is aligned with the first buckling groove 1191, and the lower buckling portion 1292 is aligned with the outer end of the second buckling groove 1193, and they are combined in the length direction.

[0310] After such operation, the buffer pad 1092 wraps around the outer side surface and the upper and lower end parts of the safety strip 1091, and at the same time, through its own elasticity, it is tightly attached to the safety strip and buckled.

[0311] On the other hand, the space between the safety bar 1091 and the multiple lower frame portions 120 is such that the lower ends of the multiple vertical brackets 140 vertically penetrate from the upper and lower sides of the lower frame portions and the upper side of the safety bar, and are then extended to a length supported by the inner bottom surface of the safety bar. This allows the safety bar to be firmly set while preventing the foot from being clamped by the space between the safety bar and the lower frame portion.

[0312] The safety bar 1091 is arranged so that the bottom is close to the ground. Therefore, when the operator pushes or pulls the cage car to move, it can be prevented to the greatest extent possible from accidentally getting the feet or ankles between the bottom of the safety bar and the ground, allowing people to use it with peace of mind.

[0313] The front side and the outer corners of the upper and lower sides of the safety bar 1091 are covered by the buffer pad 1092 to cushion the impact caused by collision with other objects or feet. Not only the cage car itself, but also the loaded goods or feet will not be directly impacted, so it can be moved safely.

[0314] Fig.48a , b is from Fig.35 A front view and a side view showing a part of the safety component installation state of another embodiment suitable for a cage vehicle are selected from the above. Fig.49a is from Fig.48a A front view and a perspective view showing an enlarged view of a safety component of another embodiment are selected from the figure, Fig.49b is from Fig.49a The safety component of another embodiment is separated and shown in a front view and a perspective view.

[0315] Fig.48a , b. A safety component 109 according to another embodiment of the present invention comprises a first safety plate 109a having a wide upper and lower width and a second safety plate 109b having a narrower upper and lower width than the first safety plate and formed of an elastic material such as rubber or polyurethane.

[0316] The first safety plate 109a has a structure including: first and second snap-fitting pieces 1093, 1094 which are respectively formed at the inner ends of the horizontal portions extending inwardly from the upper end and the inner surface and snapped with the first and second snap-fitting grooves 125, 125' which are recessed on the outer side and the lower middle portions of the lower frame portion 120; a first snap-fitting mouth portion 1095 which is recessed inwardly from the lower side portion; and a second snap-fitting mouth portion 1096 which is formed on the upper side of the horizontal portion extending horizontally inwardly from the lower end.

[0317] The second safety plate 109b is composed of a third snap-fitting piece 1097 that can be inserted and snap-fitted into the first snap-fitting mouth 1095 of the first safety plate 109a at the upper end, and a fourth snap-fitting piece 1098 whose inner end of a horizontal portion extending horizontally inward at the lower end is bent upward and the end portion is inserted into the second snap-fitting mouth 1096 and snap-fitted.

[0318] When the first safety plate 109a is arranged on the lower frame portion 120, the first and second buckling pieces 1093 and 1094 are respectively aligned with the first and second buckling grooves 125 and 125' on one side of the lower frame portion 120, and are further inserted and combined in the length direction, so that they are firmly buckled vertically.

[0319] When the second safety plate 109b is connected to the first safety plate 109a, the third and fourth snap-fitting pieces 1097 and 1098 are aligned with the first and second snap-fitting openings 1095 and 1096 on one side of the first safety plate, respectively, and are further inserted and connected in the length direction, so that they are firmly snapped together vertically.

[0320] After such setting, the bottom of the second safety plate 109b is set close to the ground, so when the operator pushes or pulls the cage car to move, it can prevent the feet or ankles from accidentally entering between the bottom of the safety bar 1091 and the ground, allowing people to use it with peace of mind.

[0321] Moreover, the second safety plate 109b is formed of elastic materials such as rubber or polyurethane, which can cushion the impact caused by collision with other objects or feet. Not only the cage car itself, but also the loaded cargo or feet will not be directly impacted, so it can be moved safely.

[0322] The foldable light cage trolley of the present invention constructed as described above is characterized in that when the cage trolley is moved by a forklift, the lower plate component can be prevented from being lifted up at will, and when the operator pushes or pulls the cage trolley to move, the feet and the like are prevented from entering between the bottom of the cage trolley and the ground, so as to ensure safety in use, and the casters will not be exposed to the outside of the cage trolley, so as to prevent the cage trolley from colliding with other objects during movement and being easily damaged, thereby shortening its service life.

Claims

1. A foldable light cage truck, characterized in that: The foldable light cage vehicle comprises: a loading frame (100), the structure comprising: a frame portion (110), the side section of which is The square tube is formed so that one side has two ends that are bent correspondingly to each other. The buckling groove (111) is used for connecting with the left and right hinge parts (200, 300), the left and right door hinge parts (400) and the door locking part (106), and is bent into lower frame portion (120), which has an upper end which can be openably recessed and formed on the inner end side of the upper insertion groove (121) and, A side joint groove (122) and a recessed groove are formed on the inner side surface of the lower portion of the insertion groove and are used to connect with the lower plate support device (170) on the left and right sides, the door support device (190) and the fixing component (108), and the inner space is divided into upper and lower horizontal partitions (123) and, in the middle of the lower portion of the horizontal partition (123), The first screwing opening (124) is protruding in shape and screwed with screws at both ends, so that the side section is The horizontal bracket (130) is formed in a tubular shape, and passes through the lower ends of the two vertical parts of the frame portion (110) and has its two ends assembled on the inner lower ends of the two vertical parts; the horizontal bracket (130) has a side section with The shape is convex at the lower part of the upper part and the two ends are provided with second screwing openings (131) for screwing screws, and the side section is The rear frame member (101) is formed in the form of a square tube, which passes through the inner surfaces of the two vertical parts of the frame part (110) and has its two ends assembled on the inner surfaces of the two vertical parts; the rear frame member (101) is formed in the form of a tube with a small diameter, which passes through the first and second coupling holes (112) and (132) which can pass through the upper and lower surfaces of the horizontal part of the frame part (110) and the horizontal bracket (130) and the third coupling hole (125) which is bored on the upper surface of the lower frame part (120), and the lower end is not penetrated through the third coupling hole. The bottom surface of the lower frame portion (120) of the hole (125) is supported, and the upper end is a vertical bracket (140) arranged between the upper and lower surfaces of the horizontal part of the frame portion (110) and combined; the left and right side frame parts (102, 102') are formed in the same way as the rear side frame part (101); the left and right side door parts (103, 103') are provided with the frame portion (110) formed in the same way as the rear side frame part (101), the horizontal bracket (130) and the vertical bracket (140), and the side section is shown in FIG. The lower frame part (120) is formed in the shape of a square tube, and its two ends are assembled on the lower ends of the inner surfaces of the two vertical parts of the frame part (110) and crosses between the lower ends of the two vertical parts of the frame part (110); the lower plate part (104) is provided with a lower plate (141) formed of a quadrilateral flat plate and is arranged to be rotatable up and down through left and right lower plate hinge parts (500) at the lower end of the inner surface of the rear frame part (101), four front and rear left and right frame materials (142) that are combined with the four sides of the lower plate (141), a buckling material (143) that tightly buckles the four corners of the frame material (142), and a plurality of bottom surface materials (144) that are combined with the inner surfaces of the corresponding two frame materials (142) and crosses from the bottom of the lower plate (141); Left and right lower plate supporting devices (170) are arranged at the lower end portions of the inner side surfaces of the lower frame portions (120) of the left and right frame portions (102, 102') to support the lower plate portion (104); A left hinge component (200) which combines the rear end of the left frame component (102) with the left end of the rear frame component (101) so that the left frame component (102) can rotate forward and reverse within a range of 270 degrees; A right hinge component (300) is provided to connect the rear end of the right frame component (102') to the right end of the rear frame component (101), so that the right frame component (102') can rotate forward and reverse within a range of 90 degrees; The left and right door hinge components (400) are respectively combined and arranged on the front ends of the left and right frame components (102, 102') so that the left and right door components (103, 103') can rotate forward and reverse within a range of 270 degrees and can be raised and lowered within a certain interval; The door bottom supporting device (190) is arranged at the middle part of the front face of the lower plate component (104), and supports the lower end parts of the corresponding right and left ends together after the left and right door components (103, 103') are closed and lowered; The caster (600) is provided with a fixing plate portion (601) on the upper surface thereof, and is respectively arranged on the left and right end portions of the lower surface of the rear frame component (101) and the lower frame portions (120) of the left and right frame components (102, 102').

2. The foldable light cage vehicle according to claim 1, characterized in that: The loading frame (100) is a structure that further includes: a door locking component (106) and a door locking component (106) arranged on the left and right door components (103, 103') to lock the left and right door components (103, 103') after closing to prevent them from being opened at will; a setting component (107) and a door locking component (106) arranged on the lower frame portion (120) to connect the caster (600) to the lower frame portion (120); a sealing cap (150) and a door locking component (106) and a door locking component (106) arranged on the left and right door components (103, 103') to connect the caster (600) to the lower frame portion (120); a first connection hole (112) and a first connection hole (112) passing through the upper and lower sides of the horizontal part of the frame portion (110) to connect the first connection hole (112) passing through the upper side; a locking device (160) and a door locking device (160) respectively arranged on the rear frame portion (101) and the left and right frame portions (102, 102') to lock the lower plate portion (104) and the left and right door components (103, 103'); and a holding device (180) locked on the frame portion (110).

3. The foldable light cage vehicle according to claim 2, characterized in that: The setting component (107) comprises a setting plate portion (1071) and left and right fixing pieces (1073) which are separated from each other by an interval proportional to the width of the left and right sides of the lower frame portion (120) and extend vertically and parallel to each other on the upper side of the setting plate portion (1071) and assembled on the lower frame portion (120); a twisting groove portion (1074) which is formed by depressions on the four corners of the lower side of the fixing piece portion (1073); and a setting groove portion (1072) which is formed by bending two sections on the lower side of the setting plate portion (1071) to face each other and connects the left and right ends of the fixing plate portion (601) arranged on the upper side of the caster (600); When the fixing plate (601) is combined with the groove (1072), the caster (600) is assembled by screwing bolts in the screwing groove (1074) through a plurality of bolt holes penetrating the fixing plate (601).

4. The foldable light cage vehicle according to claim 2, characterized in that: The sealing cap (150) is structured to include a cap portion (151) in the shape of a circular plate and an elastic fitting portion (152) formed by a plurality of elastic sheets extending downward from the center of the lower side of the cap portion (151) and having an inner diameter that gradually becomes larger from the lower end to the upper side than the inner diameter of a first coupling hole (112) passing through the frame portion (110).

5. The foldable light cage vehicle according to claim 2, characterized in that: The buckling device (160) is a structure comprising a buckling belt portion (161) formed by weaving a high-elastic polyurethane series synthetic fiber with excellent wear resistance and elasticity into a rope shape and then cutting it into a required length, and a fixing plate portion (162) with two ends of the buckling belt portion (161) pressed and combined at one end and a screw hole passed through the other end.

6. The foldable light cage vehicle according to claim 1, characterized in that: The loading frame (100) is a structure that further includes: in a state where the heights of the left and right door components (103, 103') are lower than those of the left and right frame components (102, 102'), a support component (105) is arranged in proportion to the difference in these heights, and is opened at the front between the upper ends of the left and right frame components (102, 102') and the upper ends of the left and right door components (103, 103'). When the goods are loaded and moved on the loading frame (100) at a height higher than the upper ends of the left and right door components (103, 103'), the support component (105) is used to prevent the goods from pouring out from the upper ends of the left and right door components (103, 103').

7. The foldable light cage vehicle according to claim 6, characterized in that: The support component (105) is a structure comprising: a bracket (1051) in the form of a square tube, a hinge portion (1052) mounted on one of the upper vertical portions of the frame portion (110) at the front ends of the left and right frame components (102, 102') to set the bracket rotatable up and down, and a hook pin portion (1053) mounted on the upper vertical portion of the other frame portion (110) not mounted with the hinge portion (1052) corresponding to the hinge portion (1052), and a bearing portion (1054) mounted on one end of the bracket (1051) and coupled to the hinge portion (1052) axis, and a hook portion (1055) mounted on the other end of the bracket (1051) and hooked by the hook pin portion, and a cross section of the bracket (1051) having a shape of a square tube; The bracket buckle part (1056) is shaped and assembled on the lower side of the vertical part where the hinge part (1052) is assembled, and when the bracket (1051) is not used, the other end part is rotated downward with the hinge part (1052) as the axis to fasten and fix it when it is combined so that it cannot be separated at will.

8. The foldable light cage vehicle according to claim 1, characterized in that: The loading frame (100) further comprises: A setting component (107) is used to combine and set the caster (600) on the lower frame portion (120); A fixing member (108) is used to fix the lower plate member (104) when it is rotated to a horizontal state to prevent it from being lifted up at will; A safety component (109) is arranged at the lower ends of the rear frame component (101) and the left and right frame components (102, 102') to prevent the foot or ankle from entering the space between the lower ends of the rear frame component (101) and the left and right frame components (102, 102') and the ground.

9. The foldable light cage vehicle according to claim 8, characterized in that: The setting component (107) comprises a setting plate portion (1071) with a wider left and right width, and a setting groove portion (1072) formed by bending two sections on the left side of the lower left side of the setting plate portion (1071) to extend opposite to each other so that the left and right end portions of the fixing plate portion (601) of the caster (600) are respectively inserted into the locking groove portion, and a setting plate portion (1071) on the upper right side of the setting plate portion (1071) separated by an interval proportional to the width of the inner and outer surfaces of the lower frame portion (120) and extending vertically parallel to each other. The left and right fixing pieces (1073) and the twisting grooves (1074) formed on the front, back, left and right sides of the left side of the setting plate part between the plurality of setting grooves (1072) and the bottom supporting surface (1075) of the inner parts of the four lower corners of the lower plate part (104) can be supported between the left end of the setting plate part (1071) from the left side of the left fixing piece (1073), so that the setting casters (600) will not be exposed outside the four corners of the loading frame (100).

10. The foldable light cage vehicle according to claim 8, characterized in that: The fixing component (108) has a structure comprising: The fixing device (1081) comprises a movable piece (1181) which is movably connected to the side joint groove (122) formed on the upper side of the inner surface of the lower frame portion (120), a fixing piece (1182) which horizontally extends inward from the middle part of the inner surface of the movable piece (1181), first and second spiral holes (1183, 1184) which vertically penetrate the front and rear parts on the same line of the fixing piece (1182), and a supporting piece (1185) which vertically extends downward from the inner end of the fixing piece (1182); The stop device (1082) has a front and rear width formed corresponding to the interval between the first and second spiral holes (1183, 1184), and is provided with a fixing sheet (1281) which is connected to the upper and lower ends of the four frame materials (142) of the lower plate member (104) on the outer surface of the left and right frame materials (142) so that the rear end is located in front of the front end of the fixing device (1081), and a spiral hole penetrated on the fixing sheet (1281) and the corresponding upper and lower fastening grooves (1421). The fixing piece (1281) is assembled on the outside of the left and right frame materials by twisting the fixing bolts (1282) in the spiral holes passing through the outside of the fixing piece (1281), and a bottom plate (1283) extending horizontally outward from the upper end of the outer side of the fixing piece (1281) and supported by the lower end of the supporting piece (1185), and a stop plate (1284) extending vertically upward from the outer end of the bottom plate (1283) and supported by the lower end of the first and second spiral holes (1183, 1184) in the lower side of the fixing piece (1182); When the front end of the fixing device (1081) is located behind the rear end of the stopping device (1082), the first fixing bolt (1083) whose lower end is not exposed to the lower part of the first spiral hole (1183) is twisted; and the second fixing bolt (1084) whose lower end part is exposed to the lower part of the second spiral hole (1184) is twisted.

11. The foldable light cage vehicle according to claim 8, characterized in that: The safety component (109) has a structure comprising: The first safety plate (109a) comprises first and second buckling grooves (125, 125') formed by being recessed in the middle parts of the outer surface and the lower side of the lower frame parts (120) of the left and right frame parts (102, 102'), and first and second buckling pieces (1093, 1094) respectively formed at the inner ends of the horizontal parts extending inwardly from the upper side parts of the upper end and the inner side parts and buckled with the first and second buckling grooves (125, 125') respectively, and a first buckling opening (1095) formed by being recessed inwardly from the lower side part, and a second buckling opening (1096) formed on the upper side of the horizontal parts extending horizontally inwardly from the lower end; The second safety plate (109b) comprises a third snap-fitting piece (1097) formed at the upper end and insertable into the first snap-fitting opening (1095) for coupling, and a fourth snap-fitting piece (1098) formed by bending the inner end of a horizontal portion extending horizontally inward at the lower end and inserting the end thereof into the second snap-fitting opening (1096) for coupling.

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