Fall prevention bar process equipment

The fall prevention bar fixing device provides a universal solution for securing bars on luggage racks of different widths by using symmetrical mounting and locking mechanisms, addressing the need for adaptable installation across varying rack dimensions.

JP7742135B2Active Publication Date: 2025-09-19TIGER RACK CO LTD
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Patent Information

Application Number
JP2022000416
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-01-05
Publication Date
2025-09-19
Estimated Expiration
2041-07-19

AI Technical Summary

Technical Problem

Existing fall prevention bar systems are not adaptable for luggage racks of different widths, such as light-duty and medium-duty racks, which have varying dimensions and require separate parts for installation.

Method used

A fall prevention bar fixing device with symmetrical fall prevention bar fixing portions that can be attached to both light-duty and medium-duty racks, featuring adjustable mounting surfaces and locking mechanisms to secure the bar across different support pole spacings.

Benefits of technology

The device allows for universal installation on luggage racks of varying widths by accommodating different spacings, ensuring secure attachment of fall prevention bars without the need for separate parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a fall prevention bar fixing device that can be used for luggage racks of different sizes. [Solution] The fall prevention bar fixing device 10 is equipped with a fall prevention bar fixing portion 10a on one side which includes a one-side fixed surface 12a that can contact the left side surface of the right-side support portion, a one-side extending surface 14a that is perpendicular to the one-side fixed surface and extends to the center of the outer surface of the right-side support portion, and a one-side engaging surface 16a that is perpendicular to the one-side extending surface and protrudes outwardly and can engage the right end of the fall prevention bar portion, and a other-side fall prevention bar fixing portion 10b on the other side which includes a other-side fixed surface 12b that can contact the right side surface of the left-side support portion, a other-side extending surface 14b that is perpendicular to the other-side fixed surface and extends to the center of the outer surface of the left-side support portion, and a other-side engaging surface 16b that is perpendicular to the other-side extending surface and protrudes outwardly and can engage the left end of the fall prevention bar portion.
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Description

[Technical Field]

[0001] The present invention relates to a fall prevention bar fastening device and a method for mounting a fall prevention bar fastening device to a luggage rack. [Background technology]

[0002] 2. Description of the Related Art Conventionally, industrial racks and the like have been manufactured as racks for carrying cargo. Industrial racks are manufactured in different sizes depending on the intended use.

[0003] As a technique related to the present invention, for example, Patent Document 1 discloses a device for preventing stored items from falling in a rack in which a plurality of shelf boards are arranged horizontally at intervals in the vertical direction inside a rack body having an opening on the front surface, and items are placed on and taken out of the shelf boards through the front opening between the shelf boards. The device comprises a pair of rails arranged along the vertical direction on both side edges of the front opening of the rack body, and a pair of side frames slidably attached to the pair of rails, between which a plurality of fall prevention bars are hung corresponding to the plurality of shelf boards, and each fall prevention bar is attached to a corresponding Disclosed is a device for preventing items from falling from a rack, comprising: a fall prevention frame that is slidably positioned between a lowered position that is positioned approximately in front of a shelf and an elevated position that is positioned at a front opening above the corresponding shelf; a biasing means that biases the fall prevention frame upward; a locking means that holds the fall prevention frame in the lowered position against the biasing force of the biasing means; and an unlocking means that unlocks the locking means by detecting vibration, raises the fall prevention frame by the biasing force of the biasing means, and positions each fall prevention bar at a front opening above the corresponding shelf. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-112845 Summary of the Invention [Problem to be solved by the invention]

[0005] Among industrial racks, there are, for example, light-duty racks with a load capacity of about 120 kg to 150 kg per shelf, and medium-duty racks with a load capacity of 200 kg to 300 kg per shelf. Light-duty racks and medium-duty racks differ in width and other aspects.

[0006] There are parts available for hooking fall prevention bars onto the supports of light-duty racks and medium-duty racks, but it would be convenient to have parts that can be used for both light-duty racks and medium-duty racks.

[0007] An object of the present invention is to provide a fall prevention bar fixing device that can be used for luggage racks of different widths. [Means for solving the problem]

[0008] The fall prevention bar process tool according to the present invention comprises a rectangular loading plate for loading luggage, four support columns in the shape of a square tube, and a support bar provided at the four corners of the loading plate to support the loading plate. The support bar is provided so as to straddle the outer surfaces of two of the four support columns. , both ends have a roughly J-shape a fall prevention bar fixing device attached to the two support posts of a luggage rack, the fall prevention bar fixing device comprising: a fall prevention bar fixing part on one side that can be attached to the right support post of the two support posts; and a fall prevention bar fixing part on the other side that can be attached to the left support post of the two support posts and has a shape symmetrical to the fall prevention bar fixing part on one side; When mounting the fall prevention bar on a luggage rack having two support poles with different spacings, the fall prevention bar fixing portion on one side is mounted on the left side of the left support pole, and the fall prevention bar fixing portion on the other side is mounted on the right side of the right support pole, The fall prevention bar fixing portion on one side includes a one-side fixing surface capable of contacting the left side surface of the right support portion, a one-side extending surface that is perpendicular to the one-side fixing surface and extends to the center of the outer surface of the right support portion, and a one-side locking surface that is perpendicular to the one-side extending surface and protrudes outward, and is capable of locking the right end of the fall prevention bar portion. The fall prevention bar fixing portion on the other side includes a other-side fixing surface capable of contacting the right side surface of the left support portion, a other-side extending surface that is perpendicular to the other-side fixing surface and extends to the center of the outer surface of the left support portion, and a other-side locking surface that is perpendicular to the other-side extending surface and protrudes outward, and is capable of locking the left end of the fall prevention bar portion. The one-side locking surface has a recess for locking the straight portion of the right end of the substantially J-shaped portion and a through-hole portion for passing the tip of the curved portion of the right end, and the other-side locking surface has a recess for locking the straight portion of the left end of the substantially J-shaped portion and a through-hole portion for passing the tip of the curved portion of the left end. The present invention is characterized by having the following. [Effects of the Invention]

[0012] According to the present invention, the fall prevention bar fixing device can be used for luggage racks of different widths. [Brief explanation of the drawings]

[0013] [Figure 1] 1A and 1B are diagrams showing an embodiment of a fall prevention bar fixing device according to the present invention. [Figure 2] 1 is a diagram showing a fall prevention bar fixing portion on one side and a fall prevention bar fixing portion on the other side in a fall prevention bar fixing device of an embodiment of the present invention. FIG. [Figure 3] 1 is a diagram showing a state in which a fall prevention bar portion is attached to a medium-duty rack using a fall prevention bar fixing device of an embodiment of the present invention. FIG. [Figure 4] 1 is a diagram showing a fall prevention bar portion being attached to a lightweight rack using a fall prevention bar fixing device according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, similar elements in all drawings will be designated by the same reference numerals, and duplicate explanations will be omitted. Furthermore, in the description below, previously described reference numerals will be used as necessary.

[0015] Fig. 1 is a diagram showing a fall prevention bar fixing device 10 according to an embodiment of the present invention. One fall prevention bar fixing portion 10a is shown on the left side of Fig. 1, and the other fall prevention bar fixing portion 10b is shown on the right side of Fig. 1.

[0016] 2A and 2B are diagrams showing a fall prevention bar fixing portion 10a on one side and a fall prevention bar fixing portion 10b on the other side in a fall prevention bar fixing device 10 according to an embodiment of the present invention. Fig. 2A is a plan view and a front view of the fall prevention bar fixing portion 10a, and Fig. 2B is a plan view and a front view of the fall prevention bar fixing portion 10b.

[0017] FIG. 3 is a perspective view from the rear side showing the fall prevention bar section 8 being attached to the medium-duty rack 2 using the fall prevention bar fixing device 10 according to the embodiment of the present invention.

[0018] FIG. 4 is a perspective view from the rear side showing a state in which a fall prevention bar section 8 is attached to a lightweight rack 3 using a fall prevention bar fixing device 10 according to an embodiment of the present invention.

[0019] The fall prevention bar fixing device 10 is a device for attaching a fall prevention bar portion 8 used in a medium-duty rack 2 or a light-duty rack 3. The fall prevention bar fixing device 10 has a fall prevention bar fixing portion 10a on one side and a fall prevention bar fixing portion 10b on the other side.

[0020] First, before explaining the fall prevention bar fixing device 10, we will explain the medium-duty rack 2 and light-duty rack 3 to which the fall prevention bar fixing device 10 is to be attached, and then we will explain the fall prevention bar fixing part 10a on one side and the fall prevention bar fixing part 10b on the other side, which are components of the fall prevention bar fixing device 10.

[0021] The medium-duty rack 2 and the light-duty rack 3 are industrial racks for placing cargo. The medium-duty rack 2 includes a rectangular loading plate 4 for placing cargo, four rectangular cylindrical support columns 6 that are provided at the four corners of the loading plate 4 to support the loading plate 4, and fall prevention bars 8 that are provided across the outer surfaces of two of the four support columns 6.

[0022] 3, medium-duty rack 2 has mounting plate portions 4 arranged at predetermined intervals in the vertical direction. Medium-duty rack 2 will be described as being made of a material having an appropriate strength, such as steel, but of course this may be changed as appropriate.

[0023] Four support columns 6 are erected at the four corners of the plurality of mounting plate sections 4 arranged in this manner so as to support each mounting plate section 4. The bottom surfaces of the four support columns 6 are formed in a roughly U-shape, and a hollow section is formed extending above and below the support column 6. For example, a leg section having a roughly L-shape as shown in FIG. 3 is attached to this hollow section.

[0024] The fall prevention bar section 8 is a rod member for preventing cargo placed on the medium-duty rack 2 from sliding off. The fall prevention bar section 8 will be described as being made of a material with appropriate strength, such as steel, but of course this may be changed as appropriate.

[0025] The fall prevention bar 8 is made up of a rod member having a predetermined cross-sectional area, and the end is bent to have a substantially J-shape. The size of the fall prevention bar 8 is set according to the size of the rack.

[0026] In this example, the cross-sectional shape is set to about 9 mm, and the length is set to about 1509 mm, for example, but of course these can be changed as appropriate. Note that the rear side of the medium-duty rack 2 is set to be at a predetermined height from the mounting plate 4, as shown in FIG.

[0027] The lightweight rack 3 also includes a rectangular loading plate 5 for placing cargo thereon, four support posts 7 each having a rectangular cylindrical shape and provided at the four corners of the loading plate 5 to support the loading plate 5, and a fall prevention bar 8 provided to straddle the outer surfaces of two of the four support posts 7. The lightweight rack 3 will be described as being made of a material having an appropriate strength, such as steel, but this may of course be changed as appropriate.

[0028] Here, the mounting plate portion 5 and the support portion 7 are different in size from the mounting plate portion 4 and the support portion 6, but are substantially the same in structure, and therefore detailed description thereof will be omitted.

[0029] That is, the difference between the medium-duty rack 2 and the light-duty rack 3 is the overall size. For example, when the width of the light-duty rack 3 is about 1500 mm, the width of the medium-duty rack 2 is set to about 1555 mm.

[0030] In contrast, the fall prevention bar section 8 used for both the medium-duty rack 2 and the light-duty rack 3 is the same, and for example, its length is set to approximately 1509 mm when the width of the light-duty rack 3 is approximately 1500 mm and the width of the medium-duty rack 2 is approximately 1555 mm, as described above.

[0031] Here, the fall prevention bar fixing device 10 comprises a fall prevention bar fixing portion 10a on one side that can be attached to the right support portion 6, 7 of the two support portions 6, 7, and a fall prevention bar fixing portion 10b on the other side that can be attached to the left support portion 6, 7 of the two support portions 6, 7 and has a shape that is symmetrical to the fall prevention bar fixing portion 10a on the one side.

[0032] Next, the fall prevention bar fixing portion 10a on one side and the fall prevention bar fixing portion 10b on the other side will be described. The fall prevention bar fixing portion 10a and the fall prevention bar fixing portion 10b on the other side will be described as being made of a material with appropriate strength, such as steel, but of course this may be changed as appropriate.

[0033] The fall prevention bar fixing portion 10a on one side includes a one side fixing surface 12a that can contact the left side surface of the right support portion 6, 7, a one side extending surface 14a that is perpendicular to the one side fixing surface 12a and extends to the center of the outer surface of the right support portion 6, 7, and a one side engaging surface 16a that protrudes outward perpendicular to the one side extending surface 14a and can engage the right end portion of the fall prevention bar portion 8.

[0034] One fixing surface 12a is a rectangular plate member, and for example, the length in the longitudinal direction is set to 80 mm and the length in the lateral direction is set to 40 mm. Furthermore, as shown in Fig. 1, one fixing surface 12a has holes 13a formed therein, and can be fixed to support parts 6, 7 using fastening members such as bolts and nuts.

[0035] 1 and 2(a), the one-side extending surface 14a is a rectangular plate member provided so as to be perpendicular to the one-side fixing surface 12a. The one-side extending surface 14a has a length of 80 mm in the longitudinal direction and a length of 19 mm in the lateral direction, for example.

[0036] 1 and 2(a), the one-side locking surface 16a is a rectangular plate member that is provided so as to be perpendicular to the one-side extending surface 14a. In other words, the one-side locking surface 16a is provided substantially parallel to the one-side fixing surface 12a.

[0037] 1 and 2(a), one side locking surface 16a is formed with a recess 18a that can lock the end of the fall prevention bar 8. The recess 18a is a notch that is approximately 11 mm wide and approximately 15 mm deep.

[0038] 1 and 2(a), an elongated hole 20a is formed in the one-side engaging surface 16a of the fall prevention bar 8. The elongated hole 20a is set to a length of approximately 11 mm in the short direction and a length of approximately 50 mm in the long direction.

[0039] The other side fall prevention bar fixing portion 10b includes an other side fixing surface 12b that can contact the right side surface of the left side support portion 6, 7, an other side extending surface 14b that is perpendicular to the other side fixing surface 12b and extends to the center of the outer surface of the left side support portion 6, 7, and an other side engaging surface 16b that protrudes outward perpendicular to the other side extending surface 14b and can engage the left end portion of the fall prevention bar portion 8.

[0040] The other fixing surface 12b is a rectangular plate member having the same shape as the one fixing surface 12a, and is set, for example, to a length of 80 mm in the longitudinal direction and a length of 40 mm in the lateral direction.

[0041] In addition, as shown in FIG. 1, the other side fixing surface 12b has a hole formed therein, and similar to the one side fixing surface 12a, it can be fixed to the support parts 6, 7 using fastening members such as bolts and nuts.

[0042] 1 and 2(b), the other-side extending surface 14b is provided so as to be perpendicular to the other-side fixing surface 12b, and is a rectangular plate member having the same shape as the one-side extending surface 14a. The other-side extending surface 14b has a length of 80 mm in the longitudinal direction and a length of 19 mm in the lateral direction, for example.

[0043] 1 and 2(b), the other-side locking surface 16b is provided so as to be perpendicular to the other-side extending surface 14b and is a rectangular plate member having the same shape as the one-side locking surface 16a. In other words, the other-side locking surface 16b is provided substantially parallel to the other-side fixing surface 12b.

[0044] 1 and 2(a), the other locking surface 16b is formed with a recess 18a that can lock the end of the fall prevention bar 8. The recess 18a is a notch that is approximately 11 mm wide and approximately 15 mm deep.

[0045] 1 and 2(a), an elongated hole 20a is formed in the one-side engaging surface 16a of the fall prevention bar 8. The elongated hole 20a is set to a length of approximately 11 mm in the short direction and a length of approximately 50 mm in the long direction.

[0046] That is, the fall prevention bar fixing portion 10a on one side and the fall prevention bar fixing portion 10b on the other side have a bilaterally symmetrical shape as shown in FIGS. 2(a) and 2(b).

[0047] Next, we will explain the operation of the fall prevention bar fixing device 10 configured as described above. The fall prevention bar fixing device 10 can be used for both the medium-duty rack 2 and the light-duty rack 3. The medium-duty rack 2 has a width set to, for example, 1555 mm, and the light-duty rack 3 has a width set to, for example, 1500 mm.

[0048] The medium-duty rack 2 is often set to be 55 mm larger than the light-duty rack 3. In such racks of different sizes, it is possible to use fall prevention bar portions 8 of the same length and fall prevention bar fixing portions 10a on one side and fall prevention bar fixing portions 10b on the other side.

[0049] First, we will explain the procedure for attaching the fall prevention bar fixing device 10 to the medium-duty rack 2. For example, in the medium-duty rack 2, as shown in Figure 3(c), using one side of the fall prevention bar fixing part 10a, one side fixing surface 12a is brought into contact with the left side surface of the right side support part 6, and is made to contact the outer surface of the right side support part 6, protruding from one side locking surface 16a, and the fall prevention bar fixing part 10a is fixed using a fastening member.

[0050] Then, as shown in Figure 3(c), the other side fall prevention bar fixing portion 10b is used to bring the other side fixing surface 12b into contact with the right side surface of the left side support portion 6, making it contact the outer surface of the left side support portion 6 and protruding from the other side engaging surface 16b, and the fall prevention bar fixing portion 10b is fixed using a fastening member.

[0051] 3(a) and 3(b), one end of the fall prevention bar 8 is hooked into the recess 18b of the other-side locking surface 16b, and the J-shaped end is inserted into the elongated hole 20b. Meanwhile, the other end of the fall prevention bar 8 is hooked into the recess 18a of the one-side locking surface 16a, and the J-shaped end is inserted into the elongated hole 20a. This allows the fall prevention bar 8 to be installed on the medium-duty rack 2.

[0052] Next, we will explain the procedure for attaching the fall prevention bar fixing device 10 to the lightweight rack 3. As shown in Figure 4(c), using the other side fall prevention bar fixing part 10b, the other side fixing surface 12b is brought into contact with the right side surface of the right side support part 7, and brought into contact with the outer surface of the right side support part 7, protruding with the other side engaging surface 16b, and the fall prevention bar fixing part 10b is fixed using a fastening member.

[0053] Then, as shown in Figure 4(c), using one side of the fall prevention bar fixing portion 10a, the one side fixing surface 12a is brought into contact with the left side surface of the left side support portion 7, and is made to contact the outer surface of the left side support portion 7, protruding from the one side engaging surface 16a, and the fall prevention bar fixing portion 10a is fixed using a fastening member.

[0054] In this way, for the medium-duty rack 2, the fall prevention bar fixing part 10a on one side is attached to the right-side support part 6, and the fall prevention bar fixing part 10b on the other side is attached to the left-side support part 6. On the other hand, for the light-duty rack 3, unlike the medium-duty rack 2, the fall prevention bar fixing part 10a on one side and the fall prevention bar fixing part 10b on the other side are attached in a reversed left-right manner.

[0055] For medium-duty racks 2 with a large width, one side of the fall prevention bar fixing portion 10a and the other side of the fall prevention bar fixing portion 10b are attached to the inside of the support portion 7, and for light-duty racks 3 with a small width, since the fall prevention bar portion 8 has excess length, one side of the fall prevention bar fixing portion 10a and the other side of the fall prevention bar fixing portion 10b are attached to the outside of the support portion 7, and the excess length of the fall prevention bar portion 8 can be absorbed and hung.

[0056] As described above, the fall prevention bar fixing device 10 is convenient because it can be used for both medium-duty racks 2 and light-duty racks 3 simply by using the fall prevention bar fixing portion 10a on one side and the fall prevention bar fixing portion 10b on the other side, which have symmetrical shapes, and the fall prevention bar portion 8.

[0057] Furthermore, in the above, the medium-duty rack 2 and the light-duty rack 3 are given as examples, but the sizes are merely examples, and the present invention can also be applied to, for example, medium-duty and light-duty racks and heavy-duty racks. [Explanation of symbols]

[0058] 2 Medium-duty rack, 3 Light-duty rack, 4, 5 Placing plate portion, 6, 7 Support portion, 8 Fall prevention bar portion, 10 Fall prevention bar fixing device, 10a, 10b Fall prevention bar fixing portion, 12a One side fixing surface, 12b Other side fixing surface, 13a, 13b Hole portion, 14a One side extension surface, 14b Other side extension surface, 16a One side locking surface, 16b Other side locking surface, 18a, 18b Recess portion, 20a, 20b Long hole portion.

Claims

[Claim 1] a rectangular loading plate portion for loading luggage; four support columns each having a rectangular cylindrical shape and provided at four corners of the mounting plate to support the mounting plate; a fall prevention bar portion provided across the outer surfaces of two of the four support columns, the fall prevention bar portion having both ends substantially J-shaped; A fall prevention bar fixing device attached to the two support posts of a luggage rack comprising: The fall prevention bar fixing device has a fall prevention bar fixing part on one side that can be attached to the right support part of the two support parts, and a fall prevention bar fixing part on the other side that can be attached to the left support part of the two support parts and has a shape symmetrical to the fall prevention bar fixing part on one side, and when attaching to a luggage rack where the two support parts are spaced apart, the fall prevention bar fixing part on one side is attached to the left side of the left support part and the fall prevention bar fixing part on the other side is attached to the right side of the right support part, The fall prevention bar fixing portion on one side includes a one-side fixing surface that can contact the left side surface of the right support portion, a one-side extending surface that is perpendicular to the one-side fixing surface and extends to the center of the outer surface of the right support portion, and a one-side engaging surface that is perpendicular to the one-side extending surface and protrudes outward and can engage the right end of the fall prevention bar portion, The other side fall prevention bar fixing portion includes an other side fixing surface that can contact the right side surface of the left side support portion, an other side extending surface that is perpendicular to the other side fixing surface and extends to the center of the outer surface of the left side support portion, and an other side engaging surface that is perpendicular to the other side extending surface and protrudes outward and can engage the left end of the fall prevention bar portion, the one-side locking surface has a recess for locking a straight portion of a right end portion of the substantially J-shaped portion and a through-hole portion for passing a tip of a curved portion of the right end portion, A fall prevention bar process tool characterized in that the other side engagement surface has a recess for engaging the straight portion of the left end of the approximately J-shaped portion and a through hole portion for passing the tip of the curved portion of the left end.

Citation Information

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