Hand driving member

Abstract

To improve the aesthetic quality of a hand driving member.SOLUTION: The invention relates to an elongated hand driving member 40 which is inserted into an insertion hole 23 located at each of four corners of a transport dolly 1 and gripped by a hand when the transport dolly 1 travels. The hand driving member 40 has: a rod-like body member 41 which is inserted into the insertion hole 23 to be arranged along a vertical direction; and a cap-like member which covers an upper end of the body member 41 from above.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a hand push member. [Background technology]

[0002] Some transport carts used at work sites such as construction sites have a configuration in which single pipes can be inserted into the four corners of the body of the transport cart. For example, Patent Document 1 discloses a transport cart in which corner members into which single pipes can be inserted as a push bar are provided at the four corners. With such a configuration, a user of the transport cart can use the single pipe inserted into the body of the transport cart as a push bar when moving the transport cart. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-159054 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to improve the aesthetic appearance of a hand push member. [Means for solving the problem]

[0005] The present invention is a long hand-operated member that is inserted into insertion holes located at the four corners of a transport cart and is grasped by hand when moving the transport cart, and is characterized by having a rod-shaped main body member that is positioned in a vertical direction by being inserted into the insertion hole, and a cap-shaped member that covers the upper end of the main body member from above. Effect of the Invention

[0006] According to the present invention, the aesthetic appearance of the hand push member can be improved. [Brief description of the drawings]

[0007] [Figure 1] 1A and 1B are diagrams illustrating an example of the configuration of a transport cart and a push member. [Diagram 2] FIG. 2 is a perspective view showing an example of a partially disassembled hand push member. [Diagram 3] FIG. 4 is a diagram showing an example of a configuration of a hand push member. [Figure 4] 5A and 5B are diagrams illustrating an example of a configuration of a reinforcing member. [Diagram 5] 13A to 13C are diagrams for explaining a method of installing an insert metal fitting. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The transport cart and push member according to the embodiment will be described below with reference to the drawings. For ease of explanation, the up-down direction of the push member shown in the following embodiment is based on the direction when the push member is attached to the cart body. The front-to-rear direction of the transport cart is the longitudinal direction of the transport cart, and the left-to-right direction is the lateral direction of the transport cart. However, the transport cart of this embodiment can travel in any direction, including front-to-rear and left-to-right.

[0009] FIG. 1 is a diagram showing an example of the configuration of a transport cart 1 and a push member 40. As shown in FIG. The transport cart 1 comprises a cart body 20, a running section 30, and a push member 40. First, the carriage body 20 will be described. The cart body 20 is configured by connecting a plurality of frame parts and the like, and is used to carry transported goods. The cart body 20 is rectangular in shape with the longitudinal direction being the front-rear direction and the transverse direction being the short side direction in a plan view. The cart body 20 has a front frame part 21a, a rear frame part 21b, a right frame part 21c, a left frame part 21d, a corner member 22, a reinforcing frame part (reinforcing part) 25, a loading plate 26, and the like.

[0010] The front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d may be, for example, hollow angular pipes made of an aluminum alloy. The corner member 22 is made of an aluminum alloy and formed by extrusion molding. The corner member 22 has an insertion hole 23 that opens upward and a stopper portion 24 (see FIG. 3) that closes the downward portion. A push member 40 is inserted into the insertion hole 23 of the corner member 22. The lower end of the push member 40 inserted into the insertion hole 23 is supported by the stopper portion 24.

[0011] The front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d are joined at their four corners by corner members 22 to form a rectangular frame on all four sides. Within the frame, a plurality of reinforcing frame portions 25 are butted together in the front-rear and left-right directions and are joined by screws, rivets, welding, etc. to form a lattice shape. The reinforcing frame portions 25 can be, for example, hollow angular pipes made of aluminum alloy or plates with uneven cross sections. The loading plate 26 is a flat plate for carrying objects to be transported, and is joined to each frame portion and each reinforcing frame portion 25 by rivets or screws.

[0012] The running section 30 runs on the running surface while supporting the load of the cart body 20 and the transported object. The running section 30 has a plurality of casters 31. In this embodiment, the running section 30 has six casters: four casters 31 arranged at the four corners of the cart body 20 and two casters 31 arranged at the center in the front-rear direction and spaced apart on the left and right. Each caster 31 is attached to the cart body 20 via a mounting plate.

[0013] The push member 40 is a member that the user holds with his / her hands when moving the transport cart 1. The user moves the transport cart 1 by holding the push member 40 with his / her hands and pushing or pulling it. The push member 40 is long and has a length of about 1000 mm. The push member 40 is attached to the cart body 20 by inserting the lower end into the insertion hole 23 of the corner member 22. The transport cart 1 has four push members 40, which are inserted into the insertion holes 23 of the corner members 22. All four push members 40 have the same configuration. However, the number of push members 40 is not limited to four, and one, two or three push members 40 may be attached.

[0014] Fig. 2 is a perspective view showing a partially exploded example of the push member 40. Fig. 3(a) is a side view of the push member 40, and Fig. 3(b) is a plan view of the push member 40. The hand push member 40 has a main body member 41 as a main body portion, a protective member 43, a reinforcing member 50, and an identification member 60 as an identification portion. The main body member 41 is a rod-shaped or long pipe-shaped member. The main body member 41 is made of, for example, an aluminum alloy, and is formed by extrusion molding. The main body member 41 is a metallic color such as silver, and is colored by anodizing or plating. The main body member 41 is a circular tube with an outer diameter of, for example, 42 to 45 mm (44 mm in this example) so that the user can easily grasp it, which is smaller than a so-called single tube (single tube pipe). The main body member 41 is reinforced inside in a cross shape to improve its strength. The single tube refers to a general structural carbon steel tube specified in JIS G 3444, and is a circular tube with an outer diameter of 48.6 mm. However, the dimensions of the main body member 41 are not limited to those mentioned above, and various rod-shaped or tubular members, the single pipe mentioned above, etc. can be used.

[0015] The protective member 43 protects the user's hands from coming into contact with surrounding objects when the user grasps the push member 40. The protective member 43 also serves as an indicator of the maximum loading height when transported goods are loaded. The protective member 43 is fixed to the upper side of the main body member 41 at a position a predetermined distance from the upper end with bolts, rivets, etc. The protective member 43 is preferably fixed to a position 100 to 200 mm away from the upper end of the main body member 41. More preferably, the protective member 43 is fixed to a position 120 to 180 mm away. The part of the push member 40 above the protective member 43 functions as a grip part that the user grasps with his / her hand.

[0016] As shown in FIG. 3(a), the protective member 43 has a protective portion 44 and an attachment portion 45, which are integrally formed. The protective member 43 also has attachment holes that open at the top and bottom to insert the main body member 41 inside. The protective member 43 is made of a resin material such as nylon, and is integrally formed by injection molding. The protective member 43 has a different color from the main body member 41, for example, and is colored by mixing a coloring agent into the resin material. The protective member 43 may be the same color as the main body member 41.

[0017] The protective part 44 is disc-shaped and protrudes outward from the outer circumferential surface of the main body member 41, and has an outer diameter larger than that of the main body member 41. The outer diameter of the protective part 44 is set to a dimension such that the hand of a user gripping the main body member 41 does not overlap and protrude from the protective part 44 in a plan view (fits inside the outline in a plan view). Specifically, the outer diameter of the protective part 44 is preferably in the range of 100 to 140 mm, and more preferably in the range of 110 to 130 mm. However, the specific dimension is not particularly limited.

[0018] The attachment portion 45 is cylindrical and extends downward from the lower end of the protective portion 44 , and has an outer diameter larger than that of the main body member 41 and smaller than that of the protective portion 44 . When attaching the protective member 43 to the main body member 41, the main body member 41 is inserted into the mounting hole of the protective member 43, and the mounting portion 45 is fixed to the main body member 41 at a predetermined position from the upper end of the main body member 41 with a bolt, rivet, etc.

[0019] The reinforcing member 50 is fixed to the lower end of the main body member 41, specifically at a position close to the lower end, with bolts, rivets, or the like. The reinforcing member 50 not only reinforces the strength of the main body member 41, but also suppresses rattling between the main body member 41 and the insertion hole 23 of the corner member 22 when the main body member 41 is inserted into the insertion hole 23. The reinforcing member 50 is made of, for example, an aluminum alloy, and is formed by extrusion molding. The reinforcing member 50 is a metallic color, for example, silver, and is colored by anodizing, plating, or the like.

[0020] 4(a) is a cross-sectional view taken along line II in FIG. 3(a), and FIG. 4(b) is a view showing an insertion hole 23 of a corner member 22. As shown in FIG. 4(a), the reinforcing member 50 is cylindrical and has an outer diameter larger than that of the main body member 41. The reinforcing member 50 has a plurality of (here, two) bulging portions 51 in which a portion of the outer circumferential surface bulges in the radial direction. The length (vertical dimension) of the reinforcing member 50 is set to be approximately the same as the depth of the insertion hole 23 of the corner member 22. The reinforcing member 50 also has mounting holes 53 that open upward and downward for inserting the main body member 41 therein. When attaching the reinforcing member 50 to the main body member 41, the main body member 41 is inserted into the mounting hole 53 of the reinforcing member 50, and the reinforcing member 50 is fixed to the main body member 41 at a predetermined position from the lower end of the main body member 41 with a bolt, rivet, etc.

[0021] 4(b), the insertion hole 23 into which the reinforcing member 50 is inserted has a space 54 as a recess that allows the insertion of the bulging portion 51 of the reinforcing member 50. Therefore, by aligning the bulging portion 51 with the space 54 and inserting the reinforcing member 50 fixed to the main body member 41 into the insertion hole 23, the hand push member 40 is positioned at a predetermined position.

[0022] The identification member 60 is a member for identifying the user of the push member 40. Here, the user refers to a contractor who has been contracted by a construction company to carry out construction work. At a work site, for example, a number of contractors, such as a contractor who performs air conditioning equipment construction work, a contractor who performs electrical work, and a contractor who performs sanitation-related work, carry out construction work in parallel. Each contractor borrows the transport cart 1 and the push member 40 from the construction company to use. Therefore, it is preferable that the user of the push member 40 at the work site can be identified at a glance. In this embodiment, the identification member 60 is given a different color for each user of the push member 40 in order to identify the user of the push member 40.

[0023] The configuration of the identification member 60 will now be described. The identification member 60 is a cap-shaped, cylindrical member with a bottom in this embodiment. The identification member 60 is made of a resin material such as nylon, and is integrally formed by injection molding. The identification member 60 is, for example, a color different from that of the main body member 41, and is colored by mixing a coloring agent into the resin material. Here, the identification member 60 is colored, for example, in one of the three primary colors of red, green, and yellow, or in one of blue, white, orange, gray, and pink, depending on the user. In this way, the visibility of the identification member 60 can be improved by applying blue, white, orange, gray, and pink.

[0024] The identification member 60 has a cylindrical portion 61 and an end portion 62 . The tubular portion 61 is cylindrical and has a mounting hole 63 that opens downward for inserting the upper end of the main body member 41. The length (vertical dimension) of the tubular portion 61 is preferably in the range of 10 mm to 40 mm. By making it 10 mm or more, the visibility of the identification member 60 is improved, and by making it 40 mm or less, excessive increase in size of the identification member 60 can be suppressed. In addition, the outer diameter of the tubular portion 61 is preferably in the range larger than the outer diameter of the main body member 41 and smaller than the outer diameter of the protective portion 44. However, the specific dimensions are not particularly limited. The end portion 62 is generally plate-shaped, is located at the upper end of the tubular portion 61, and closes the mounting hole 63 from above. The outer surfaces of the boundary between the tubular portion 61 and the end portion 62 are connected by a curved surface.

[0025] When attaching the identification member 60 to the main body member 41, it is attached by inserting the upper end of the main body member 41 into the mounting hole 63 of the identification member 60. In a state where the identification member 60 is attached to the main body member 41, the upper end of the main body member 41 is covered by the identification member 60. Note that the identification member 60 can be attached by press-fitting it into the main body member 41. Therefore, the identification member 60 can be removed by pulling it out from the main body member 41, and the identification member 60 is detachable from the main body member 41. By making it detachable in this way, it is possible to easily replace the identification member 60 with a different color.

[0026] Here, the state where the identification member 60 is attached to the main body member 41 will be described with reference to FIG. 3. As shown in FIG. 3(a), in a state where the identification member 60 is attached to the main body member 41, since the identification member 60 is located at the upper end, which is a prominent position of the hand-pressing member 40, the user can easily visually recognize the identification member 60. Further, since the identification member 60 has a cylindrical portion 61, the identification member 60 can be visually recognized from any position around 360° of the hand-pressing member 40. In addition, since the identification member 60 covers the upper end of the main body member 41, the aesthetic feeling of the hand-pressing member 40 can be improved.

[0027] Further, as shown in FIG. 3(b), when the outer diameter of the identification member 60 is D1 and the outer diameter of the protection portion 44 is D2, the relationship is D1 < D2. That is, in a plan view, the identification member 60 is located inside the outer peripheral surface of the protection portion 44. Therefore, even if the user grasps the identification member 60 by hand and moves the transport cart 1, since the protection portion 44 contacts an object such as a wall before the hand, contact of the hand of the user grasping the identification member 60 with the object is prevented or suppressed. In order to make the protection portion 44 contact the object before the hand, it is preferable that the outer diameter D1 of the identification member 60 is as close as possible to the outer diameter of the main body member 41. That is, as shown in FIG. 3(a), the horizontal distance L1 from the outer peripheral surface of the identification member 60 to the outer peripheral surface of the main body member 41 is preferably smaller than the horizontal distance L2 from the outer peripheral surface of the identification member 60 to the outer peripheral surface of the protection portion 44. FIG. 3(b) shows a state in which the push member 40 is inserted into the insertion hole 23, with a part of the protective portion 44 overlapping the cart main body 20 (see the two-dot chain line).

[0028] In this way, the hand push member 40 has an identification member 60 that is given a different color for each user in order to identify the user of the hand push member 40. For example, a red identification member 60 is attached to a hand push member 40 used by a contractor performing air conditioning equipment work, a yellow identification member 60 is attached to a hand push member 40 used by a contractor performing electrical work, and a green identification member 60 is attached to a hand push member 40 used by a contractor performing sanitation-related work. Therefore, by visually checking the identification member 60 that is given a different color for each user, the user of the hand push member 40 can be easily identified. In addition, the identification member 60 is detachable from the main body member 41. Therefore, even if the user of the hand push member 40 changes, the identification member 60 can be easily replaced with one of a different color without damaging the main body member 41 or the identification member 60.

[0029] Next, the colors applied to the identification members 60 for each user will be described. Here, an example will be described in which insert fittings with different colors are used for different users at a work site where the transport cart 1 and push member 40 are used. FIG. 5 is a diagram illustrating an example of a method for installing the insert metal fitting 70. As shown in FIG. The insert metal fitting is a metal fitting that is embedded in the concrete structure at the work site. The insert metal fitting 70 of this embodiment is attached to a formwork 75 before pouring concrete, and the formwork 75 is dismantled after pouring concrete, so that the nut member is embedded in the concrete structure.

[0030] The insert metal fitting 70 has a nut member 71 and a resin frame material 72. The nut member 71 has a female thread portion 73 held by the resin frame material 72. The resin frame material 72 is arranged around the nut member 71 and has nails 74 for attaching the insert metal fitting 70 to a formwork 75. The resin frame material 72 is available in different colors with the same shape. In other words, the insert metal fitting 70 is available in different colors of the resin frame material 72.

[0031] Next, a method for installing the insert metal fitting 70 will be described. First, as shown in FIG. 5(a), to install the insert metal fitting 70, a resin frame material 72 is attached using nails 74 in a state where it is in contact with the surface of a formwork 75 on the side where concrete is to be poured.

[0032] 5(b), the formwork 75 is dismantled after concrete is poured. By dismantling the formwork 75, the insert metal fitting 70 is embedded in the concrete skeleton. At this time, the female thread portion 73 of the nut member 71 and a part of the resin frame material 72 are exposed on the surface of the concrete skeleton. Finally, as shown in FIG. 5(c), a hanging bolt 76 or the like can be screwed into the female threaded portion 73 exposed on the surface of the concrete structure, allowing a structure to be placed around the concrete structure via the hanging bolt 76.

[0033] Here, at the work site, each contractor places their own structures. For example, a contractor who performs air conditioning equipment construction installs air conditioning ducts and the like as structures. A contractor who performs electrical construction installs electric wires and lighting fixtures as structures. A contractor who performs sanitary construction installs water supply and drainage pipes and the like. Therefore, each contractor must attach the insert metal fittings 70 that he or she will use to the formwork 75 in advance at the positions where the respective structures will be placed. At this time, in order to identify which contractor installed the insert metal fittings 70 after the formwork 75 is dismantled, each contractor attaches insert metal fittings 70 of a different color.

[0034] In this embodiment, the color of the insert metal fitting 70 and the color of the identification member 60 are made substantially the same for each user. For example, if a user uses an insert metal fitting 70 with a red resin frame material 72, the hand push member 40 used by that user is fitted with an identification member 60 in red. In this way, by making the color of the insert metal fitting 70 and the color of the identification member 60 substantially the same for each user, the user of the hand push member 40 can be more easily identified. The colors that can be used for the insert metal fittings 70 include red, green, yellow, blue, white, orange, gray, pink, etc. On the other hand, black is not often used as a color for the insert metal fittings 70 because it is not conspicuous. Therefore, the identification member 60 of the hand push member 40 used by a contractor who does not use the insert metal fittings 70 can be colored black.

[0035] Although the embodiment of the present invention has been described in detail above with reference to the drawings, the above-mentioned embodiment merely shows a specific example of the implementation of the present invention. The technical scope of the present invention is not limited to the embodiment. The present invention can be modified in various ways without departing from the spirit of the invention, and these modifications are also included in the technical scope of the present invention.

[0036] In the above embodiment, the case where the identification part is a cap-shaped identification member 60 has been described, but this is not limited to this case. For example, the identification part may be a sticker-shaped member that is colored for each user. Also, although the identification member 60 has been described as being attached to the main body member 41, it may be attached to a member that constitutes the hand-pushing member 40, such as the protective member 43. Even in this case, it is preferable that the identification part is detachable.

[0037] In addition, although the case where the identification member 60 is cap-shaped has been described, this is not limited to this case. For example, the identification member 60 may have a shape of only the tubular portion 61. Furthermore, the shape of the tubular portion 61 is not limited to a circle in a plan view, but may be a polygon. Moreover, the protective member 43 itself may be the identification part. That is, the hand push member 40 may have protective members 43 that are colored for each user. Moreover, the hand push member 40 may omit the reinforcing member 50 and have the lower end of the main body member 41 directly inserted into the insertion hole 23 . [Explanation of symbols]

[0038] 1: Transport cart 20: Cart body 23: Insertion hole 30: Running part 40: Hand-pushing member 41: Main body member 43: Protective member 44: Protective part 60: Identification member 70: Insert metal fitting

Claims

1. A long hand-operated member that is inserted into insertion holes located at the four corners of the transport cart and is grasped by hand when the transport cart is being moved, a rod-shaped main body member that is inserted into the insertion hole and is arranged in a state aligned in the vertical direction; A hand push member characterized by having a cap-shaped member that is colored differently from the color of the main body member, covers the upper end of the main body member from above, and is detachable from the main body member.

2. The cap-shaped member is 2. The hand push member according to claim 1, further comprising a cylindrical portion and an end portion located at an upper end of the cylindrical portion.

3. A hand push member as described in claim 1 or 2, characterized in that it has a protective portion that protrudes outward from the outer peripheral surface of the main body member to protect the hand holding the hand push member from coming into contact with surrounding objects.

4. The cap-shaped member is The push member according to claim 3, characterized in that the push member is located inside the outer peripheral surface of the protection portion when viewed in a plan view.

5. The cylindrical portion is 3. The push member according to claim 2, wherein the push member has a circular shape in a plan view.

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