Hand-pressed parts

Abstract

To improve the aesthetic appearance of a hand-operated member. [Solution] The present invention is a long hand push member 40 that is inserted into insertion holes 23 located at the four corners of the transport cart 1 and is grasped by hand when moving the transport cart 1, and is characterized by having a rod-shaped main body member 41 that is positioned in a vertical direction by being inserted into the insertion hole 23, and a cap-shaped member that covers the upper end of the main body member 41 from above.

Description

[Technical Field]

[0001] The present invention relates to a 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 that has corner members at the four corners into which single pipes can be inserted as a push rod. With this configuration, the user of the transport cart can use the single pipe inserted into the body of the transport cart as a push rod when moving the transport cart. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-159054 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to improve the aesthetic appearance of the hand push member. [Means for solving the problem]

[0005] The present invention relates to a long hand push member that is inserted into insertion holes located at the four corners of a transport cart and is grasped by hand when the transport cart is being driven, the long hand push member comprising: a rod-shaped main body member that is arranged in a vertical direction by being inserted into the insertion hole; a protective part that protrudes outward from the outer circumferential surface of the main body member to protect the hand grasping the hand push member from coming into contact with surrounding objects; and a separate protective part. The color is different from the color of the main body member, a cylindrical cap member that covers the upper end of the main body member from above, the cap member being detachable from the main body member, and the height of the cap member in the vertical direction being 、The diameter of the cap-shaped member is larger than the vertical thickness of the protective portion and smaller than the diameter of the cap-shaped member, and further, the horizontal distance from the outer surface of the cap-shaped member to the outer surface of the main body member is smaller than the horizontal distance from the outer surface of the cap-shaped member to the outer surface of the protective portion. [Effects of the Invention]

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

[0007] [Figure 1] 10A and 10B are diagrams illustrating an example of the configuration of a transport cart and a push member. [Figure 2] FIG. 2 is a perspective view showing an example of a partially disassembled hand push member. [Figure 3] FIG. 2 is a diagram illustrating an example of the configuration of a hand push member. [Figure 4] 10A and 10B are diagrams illustrating an example of the configuration of a reinforcing member. [Figure 5] 10A and 10B are diagrams for explaining a method of installing an insert metal fitting. DETAILED DESCRIPTION OF THE INVENTION

[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 includes a cart body 20, a running section 30, and a push member 40. First, the carriage main body 20 will be described. The carriage body 20 is formed by connecting a plurality of frame sections and the like, and is used to carry transported goods. In a plan view, the carriage body 20 is rectangular, with the longitudinal direction being the front-to-rear direction and the transverse direction being the left-to-right direction. The carriage body 20 has a front frame section 21a, a rear frame section 21b, a right frame section 21c, a left frame section 21d, corner members 22, a reinforcing frame section (reinforcing section) 25, a loading plate 26, etc.

[0010] The front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d can be made of, for example, hollow rectangular pipes made of an aluminum alloy. The corner members 22 are made of an aluminum alloy and formed by, for example, extrusion molding. The corner members 22 have insertion holes 23 that open upward and stopper portions 24 (see FIG. 3) that close the downward end. 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 four-sided frame. Within the frame, a plurality of reinforcing frame portions 25 are butted together in the front-rear and left-right directions and joined by screws, rivets, welding, etc. to form a lattice shape. The reinforcing frame portions 25 can be, for example, hollow rectangular pipes made of aluminum alloy or plates with an uneven cross section. The loading plate 26 is a flat plate for carrying transported goods, and is joined to each frame portion and each reinforcing frame portion 25 by rivets or screws.

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

[0013] The push member 40 is a member that the user holds onto when moving the transport cart 1. The user moves the transport cart 1 by holding the push member 40 with their hands and pushing or pulling it. The push member 40 is long and approximately 1000 mm in length. The push member 40 is attached to the cart main body 20 by inserting its lower end into the insertion hole 23 of the corner member 22. The transport cart 1 also has four push members 40, which are inserted into the insertion hole 23 of each corner member 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 an example of a partially exploded 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 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 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 pipe with an outer diameter of, for example, 42 to 45 mm (44 mm in this example) so that it is easy for the user to grip, and is smaller in diameter than a so-called single pipe (single pipe). The main body member 41 is internally reinforced in a cross shape to improve its strength. The single pipe refers to a general structural carbon steel pipe specified in JIS G 3444, and is a circular pipe with an outer diameter of 48.6 mm. However, the main body member 41 is not limited to the above dimensions, and various rod-shaped or tubular members, the above-mentioned single pipe, 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 loading transported items. The protective member 43 is fixed to the upper side of the main body member 41 at a predetermined distance from the upper end with bolts, rivets, etc. The protective member 43 is preferably fixed at a position 100 to 200 mm from the upper end of the main body member 41. It is more preferable to fix the protective member 43 at a position 120 to 180 mm away. The part of the push member 40 above the protective member 43 functions as a grip portion for the user to grasp with their hands.

[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 allow the main body member 41 to be inserted therein. The protective member 43 is made of a resin material such as nylon, and is integrally formed by injection molding. The protective member 43 is, for example, a different color from the main body member 41, and is colored by mixing a colorant into the resin material. The protective member 43 may also be the same color as the main body member 41.

[0017] The protective part 44 is disc-shaped and protrudes outward from the outer peripheral 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, in a plan view, the hand of a user gripping the main body member 41 does not overlap and protrude from the protective part 44 (the hand is contained within 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 protection portion 44 , and has an outer diameter that is larger than the main body member 41 and smaller than the protection 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 using 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 rattle between the main body member 41 and the insertion hole 23 when the main body member 41 is inserted into the insertion hole 23 of the corner member 22. The reinforcing member 50 is made of, for example, an aluminum alloy and formed by extrusion molding. The reinforcing member 50 has a metallic color such as silver, and is colored by anodizing, plating, or the like.

[0020] 4(a) is a cross-sectional view taken along line II shown in FIG. 3(a), and FIG. 4(b) is a view showing the insertion hole 23 of the corner member 22. As shown in FIG. 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 multiple (two in this example) bulging portions 51, where parts of the outer circumferential surface bulge radially. 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 at the top and bottom to allow the main body member 41 to be inserted 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 using bolts, rivets, 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 contracted by a construction company to perform construction work. At a work site, multiple contractors, such as contractors performing air conditioning equipment work, electrical work, and sanitation-related work, work in parallel. Each contractor borrows a transport cart 1 and push member 40 from the construction company and uses them. 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 colored differently 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 be described below. The identification member 60 is a cap-shaped, cylindrical member with a bottom in this example. 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 colorant into the resin material. Here, the identification member 60 may be colored, depending on the user, in one of the three primary colors of red, green, and yellow, or in one of blue, white, orange, gray, and pink. In this way, the visibility of the identification member 60 can be improved by coloring it in blue, white, orange, gray, or 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. A length of 10 mm or more improves the visibility of the identification member 60, while a length of 40 mm or less prevents the identification member 60 from becoming excessively large. Furthermore, 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 and is located at the upper end of the tubular portion 61, closing 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] Also, 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 grabs 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 holding 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 protection part 44 overlapping with the cart main body part 20 (see the two-dot chain line).

[0028] In this way, the push member 40 has an identification member 60 that is colored differently for each user to identify the user of the push member 40. For example, a red identification member 60 is attached to a push member 40 used by a contractor performing air conditioning equipment installation work, a yellow identification member 60 is attached to a push member 40 used by a contractor performing electrical installation work, and a green identification member 60 is attached to a push member 40 used by a contractor performing sanitary installation work. Therefore, by visually checking the identification member 60 that is colored differently for each user, the users of the push member 40 can be easily identified. Furthermore, 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 a different color identification member 60 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 the push member 40 are used. FIG. 5 is a diagram illustrating an example of a method for installing the metal insert 70. In FIG. The insert fitting is a fitting that is embedded in the concrete skeleton at a work site. The insert fitting 70 of this embodiment is attached to a formwork 75 before concrete is poured, and the formwork 75 is dismantled after the concrete is poured, allowing the nut member to be embedded in the concrete skeleton.

[0030] The metal insert 70 has a nut member 71 and a resin frame material 72. The nut member 71 has a female thread portion 73 that is 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 metal insert 70 to a formwork 75. The resin frame material 72 is available in different colors but with the same shape. In other words, the metal insert 70 is available in different colors of the resin frame material 72.

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

[0032] Next, as shown in Figure 5(b), after concrete is poured, the formwork 75 is dismantled. 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 Figure 5(c), by screwing a hanging bolt 76 or the like into the female thread portion 73 exposed on the surface of the concrete body, a structure can be placed around the concrete body via the hanging bolt 76.

[0033] At the work site, each contractor installs their own structures. For example, a contractor performing air conditioning installation work installs air conditioning ducts and other structures. A contractor performing electrical installation work installs electrical wires, lighting fixtures, and other structures. A contractor performing sanitary installation work installs water supply and drainage pipes and other structures. Therefore, each contractor must attach their own insert metal fittings 70 to the formwork 75 in advance at the positions where they will install their own structures. At this time, each contractor installs insert metal fittings 70 of a different color so that it can be identified which contractor installed the insert metal fittings 70 after the formwork 75 is dismantled.

[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 will be fitted with a red identification member 60. 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, it is possible to more easily identify the user of the hand push member 40. The insert fittings 70 can be colored in red, green, yellow, blue, white, orange, gray, pink, etc. On the other hand, black is not often used as a color for the insert fittings 70 because it is not conspicuous. Therefore, the identification member 60 of the push member 40 used by a contractor who does not use the insert fittings 70 can be colored black.

[0035] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the above-described embodiments merely illustrate specific examples of how the present invention can be implemented. The technical scope of the present invention is not limited to the embodiments. 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-described embodiment, the identification part is a cap-shaped identification member 60, but this is not limited to this. For example, the identification part may be a sticker-shaped member that is colored for each user. Furthermore, although the identification member 60 is described as being attached to the main body member 41, it may also be attached to a member that constitutes the hand-push member 40, such as the protective member 43. Even in this case, it is preferable that the identification part be detachable.

[0037] Although the identification member 60 has been described as being cap-shaped, this is not limiting. For example, the identification member 60 may have only the shape of the tubular portion 61. Furthermore, the shape of the tubular portion 61 is not limited to being circular in plan view, but may also be polygonal. Moreover, the protective member 43 itself may be used as the identification part. That is, the push member 40 may have protective members 43 that are colored for each user. Further, the hand push member 40 may be configured so that the reinforcing member 50 is omitted and the lower end of the main body member 41 is inserted directly into the insertion hole 23 . [Explanation of symbols]

[0038] 1: Transport cart 20: Cart body 23: Insertion hole 30: Running part 40: Hand push member 41: 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 protection portion that protrudes outward from the outer circumferential surface of the main body member to protect the hand holding the hand push member from coming into contact with surrounding objects; a cylindrical cap-shaped member that is separate from the protective portion, has a color different from that of the main body member, and covers the upper end of the main body member from above; The cap-shaped member is It is detachable from the main body member, a vertical height of the cap-shaped member is greater than a vertical thickness of the protection portion and is smaller than a diameter of the cap-shaped member; Furthermore, the hand push member is characterized in that the horizontal distance from the outer surface of the cap-shaped member to the outer surface of the main body member is smaller than the horizontal distance from the outer surface of the cap-shaped member to the outer surface of the protective portion.

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. The cap-shaped member is The push member according to claim 1 or 2, characterized in that the push member is located inside the outer peripheral surface of the protection portion when viewed in a plan view.

4. The cap-shaped member is 4. The hand push member according to claim 1, wherein the hand push member is colored in one of red, green, and yellow.

5. The cap-shaped member is 4. The hand push member according to claim 1, wherein the hand push member is colored in one of blue, white, orange, gray, pink, and black.

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

Images