JP4427797B2 - Cargo cart - Google Patents

Description

  The present invention relates to a load carrying carriage formed by standing panels on at least three sides of the left and right sides and the rear side of a planar rectangular load support.

  An example of a conventional cargo carrier cart known as this type of cargo carrier cart will be described with reference to FIGS. 1 and 2. The left and right sides and the rear side of the plane rectangular load support carrier 1 are arranged on three sides. Panels 2 to 4 are respectively erected, and moving wheels 5 a to 5 d are disposed below the four corners of the load support base 1. More specifically, the pair of front left and right wheels 5a and 5b are attached to the lower side of the front ends of the left and right side panels 2 and 3, and the pair of rear left and right wheels 5c and 5d are located below the left and right ends of the back panel 4. It is attached. Thus, in order to be able to nest the load carriages that are not being used in the horizontal direction, the load support table 1 has a rear side around the left and right horizontal axis 1a on the lower side of the back panel 4. The right panel 3 is supported on the right side of the back panel 4 so as to be swingable horizontally around the vertical axis 3a. Therefore, as shown in FIG. 2, the unused load carrying trolley is folded so that the load support base 1 stands up on the inner side of the back panel 4, and the right side panel so as to overlap the outer side of the folded load support base 1. 3 can be folded horizontally and the whole can be folded into an L shape in plan view. Reference numerals 6a to 6d in FIG. 2 denote mounting seats for the wheels 5a to 5d. 1 and 2, the rear side of the left panel 2 and the left side of the back panel 4 are connected by a connecting member 7, and the rear side of the right panel 3 and the right side of the back panel 4 are connected. They are connected by a hinge member 8.

For example, in the conventional load carrying cart as described above, as described in Patent Document 1 and Patent Document 2, each of the panels 2 to 4 includes a gate-shaped frame material 9, and both left and right column portions of the portal-shaped frame material 9. A lower frame member 10 connecting the lower ends, a plurality of vertical beam members 11 laid between the upper end horizontal part of the portal frame member 9 and the lower frame member 10, and both left and right columns of the portal frame member 9 It was comprised from the horizontal crosspiece 12 erected in the upper and lower steps between the sections.
JP 2000-71993 A Japanese Utility Model Publication No. 5-89149

  Therefore, when manufacturing a load carrier truck having different loading capacity using a plurality of types of load support tables 1 having different areas, the panels 2 to 4 are adapted to the length of each side of the load support table 1 to be used. Multiple types of panels with widths must be prepared. Specifically, the lower frame member 10 and the horizontal beam member 12 can be obtained by cutting a long material constituting each according to the width of the panel, and the vertical beam member 11 has a constant panel height. If this is the case, it is only necessary to change the number of the same vertical beam members 11 to be used. However, the gate-shaped frame member 9 must be prepared in a plurality of types having different widths between the left and right column parts. As the types of widths of the panels 2 to 4 increase, the manufacturing cost increases and the inventory management cost also increases. The one described in Patent Document 2 simply uses one type of panel (the same size and shape) as each of the panels 2 to 4, and seems to change the length of each side of the load support base 1 to be used. It is not a means that can be used in any case.

An object of the present invention is to provide a load carrying cart that can solve the conventional problems as described above, and its means is indicated by reference numerals of embodiments to be described later. The load carrier 1 is a load carrying trolley in which panels 13 to 15 are erected on at least three sides of the left and right sides and the rear side, respectively, and each of the panels 13 to 15 has a horizontal lower frame 19. And a plurality of vertically long gate-shaped frame members 16 and 17 that are fixed to the horizontal lower frame member 19 in parallel at the lower ends of both column parts and are arranged in parallel in the length direction of the horizontal lower frame member 19, and connecting integrated together Nagato Katachiwaku member 16, 17 at an intermediate height position consists intermediate horizontal connecting frame member 18. all of the vertical Nagato shape frame member constituting each panel 13 to 15, between the struts A narrow vertical gate-shaped frame material 16 with a narrow width and a large vertical gate-shaped frame material with a wide width between both struts And it has a configuration that consists of only 7 of two kinds.

In carrying out the present invention having the above-described configuration, specifically, as described in claim 2, the intermediate horizontal connecting frame member 18 is a column of the vertically long gate-shaped frame members 16 and 17 constituting the panels 13 to 15. Both ends are fixed to the inner sides of the column portions located at both ends in the width direction of the panels 13 to 15, and the column portions of the vertically long gate-shaped frame members 16 and 17 intersecting with the intermediate horizontal connecting frame member 18 The recessed portion 20 into which the intermediate horizontal connecting frame member 18 is fitted can be formed, and the recessed portion 20 and the intermediate horizontal connecting frame member 18 can be fixed to each other.

  According to the load carrying cart according to the present invention having the above-described configuration, each panel can be used as long as a horizontal lower frame member and an intermediate horizontal connecting frame member having a length corresponding to the width of each panel can be used. A panel having an arbitrary width can be manufactured only by changing the number of the vertically long gate-shaped frame members that are arranged in parallel, the interval between the vertically long gate-shaped frame materials, or both. Therefore, when manufacturing a load carrier with different loading capacity using multiple types of load supporters with different areas, especially by changing the interval between the vertically long gate frames in parallel, The width can be changed, and the types of panel components (points) can be greatly reduced for the types of panel widths that can be manufactured, manufacturing costs can be greatly reduced, and inventory management can be achieved. It can be expected to reduce this.

In addition, when implementing this invention, if it enables it to manufacture a panel of arbitrary height using several types of vertical elongate frame materials from which height (length of both right and left support | pillar part) differs, each panel It is possible to change the volume of the loading space surrounded by each panel on the load support base by changing the height of the load, and three or more types with different widths (intervals between the left and right struts) Prepare the vertical gate-shaped frame material, change the width of the vertical gate-shaped frame material to be used, or change the parallel number of the vertical gate-shaped frame materials, or change the interval between the vertical gate-shaped frame materials in parallel, Furthermore, by combining these (including the case where a plurality of vertically long gate-shaped frame members having different widths are used in one panel), extremely many types of panels having different widths are manufactured. Manufactures various types of cargo carts with different loading capacity in combination Although but they can Rukoto, according in particular to the configuration of the present invention, only by preparing the vertical Nagato form frame members of two kinds of widths, large load carrying truck loading capacity which requires a very large panel of width Reduce the number of vertical gate frames used for one panel with a very large width, and reduce assembly (welding) costs and weight. Can do.

Furthermore, according to the structure of Claim 2 , while the contact surface of both in the crossing part of the intermediate | middle horizontal connection frame material and the support | pillar part of a vertically long gate-shaped frame material becomes large, the length of the support | pillar part of a vertically long gate-shaped frame material is increased. By positioning the intermediate horizontal connecting frame member with respect to the vertical direction, the fixation by welding or the like can be easily and securely performed. In addition, it is possible to suppress or eliminate the amount of protrusion of the intermediate horizontal connecting frame member to the outside (or inside) of the panel.

  A specific embodiment of the present invention will be described below with reference to FIGS. 3 to 9. The left and right side panels 13 and 14 corresponding to the left and right side panels 2 and 3 in the conventional load carrying cart shown in FIG. As shown in FIG. 3A, a back panel 15 corresponding to the panel 4 includes a narrow vertical gate-shaped frame member 16 having a width w1, a large vertical gate-shaped frame member 17 having a width w2 (> w1), an intermediate horizontal connecting frame member 18, and The horizontal lower frame member 19 is assembled. The vertically long gate-shaped frame members 13 and 14 are formed by bending a round pipe material into a vertically long gate shape, and the intermediate horizontal connecting frame material 18 is more than the round pipe material constituting the vertically long gate-shaped frame members 13 and 14. A small-diameter round pipe material or round bar material is cut to a required length, and the horizontal lower frame material 19 is an angle material cut to a required length.

  FIGS. 3B to 5 show a case where the panels 13 to 15 are manufactured using the narrow vertically long gate-shaped frame member 16. That is, the left and right side panels 13 and 14 are welded to the two small vertically long gate-shaped frame members 16 and the lower ends of both left and right support columns to the horizontal lower frame member 19 (inside the vertical plate portion of the angle member). The horizontal lower frame member 19 is fixed and arranged in parallel with a distance SD1 or SD2 or SD3 (SD1 <SD2 <SD3) in the length direction of the horizontal lower frame member 19, and an intermediate height between the two small vertically long gate-shaped frame members 16 The left and right side panels 13 and 14 having a height H and a width SW1 or SW2 or SW3 (SW1 <SW2 <SW3) are obtained by connecting and integrating the two upper and lower portions with an intermediate horizontal connecting frame member 18. Further, the back panel 15 has three small vertically long gate-shaped frame members 16 fixed to the horizontal lower frame member 19 by welding the lower ends of both left and right support columns to the length of the horizontal lower frame member 19. The BD1 or BD2 or BD3 (BD1 <BD2 <BD3) are arranged in parallel in the direction, and the three small vertical and long gate-shaped frame members 16 are connected and integrated at two intermediate heights by an intermediate horizontal connecting frame member 18. Thus, the back panel 15 having a height H and a width BW1, BW2 or BW3 (BW1 <BW2 <BW3) is obtained.

  As in the prior art, the moving wheels 5a and 5b are attached to the mounting seats 6a and 6b below the front end of the horizontal lower frame member 19 (the horizontal plate portion of the angle member) in the left and right side panels 13 and 14, respectively. The moving wheels 5c and 5d are attached to the lower sides of the left and right ends of the horizontal lower frame member 19 (the horizontal plate portion of the angle member) via the attachment seat plates 6c and 6d.

  If the three types of left and right side panels 13, 14 of height H, width SW1, SW2, or SW3 and the three types of back panels 15 of height H, width BW1, BW2, or BW3 configured as described above are used. The front / rear depth is any of SW1, SW2, SW3 and the left / right lateral width is combined with any load support base 1 of BW1, BW2, BW3, and the front / rear depth is any of SW1, SW2, SW3, and the lateral width is BW1, A total of nine types of load carrying carts of BW2 and BW3 can be assembled. In this case, the support portion of the narrow vertical gate-shaped frame member 16 serving as the rear side of the left panel 13 and the support portion of the narrow vertical gate-shaped frame member 16 serving as the left side of the back panel 15 are connected by the connecting member 7. A supporting column portion of the narrow vertical gate-shaped frame member 16 serving as the rear side of the right panel 14 and a supporting column portion of the narrow vertical gate-shaped frame member 16 serving as the right side of the back panel 15 are connected by the hinge member 8.

  FIG. 6 shows a case where left and right side panels 13 and 14 (showing the right side panel 14 side) are manufactured using a substantially vertically long gate-shaped frame member 17. That is, two large vertically long gate-shaped frame members 17 are juxtaposed in the length direction of the horizontal lower frame member 19 with a gap SD4 or SD5 (SD4 <SD5), and the intermediate horizontal connecting frame member 18 and the horizontal lower frame. The left and right side panels 13 and 14 having a height H and a width SW4 or SW5 (SW4 <SW5) are integrated with the frame member 19. FIG. 7 shows a case where the back panel 15 is manufactured by combining the narrow vertical gate-shaped frame member 16 and the large vertical gate-shaped frame member 17. That is, two large vertically long gate-shaped frame members 17 and one small vertical long gate-shaped frame member 16 disposed therebetween, or two small wide vertically long gate-shaped frame members 16 and one large large vertical gate-shaped frame member 16 disposed therebetween. The vertically long gate-shaped frame member 17 is arranged in parallel in the length direction of the horizontal lower frame member 19 with a distance BD4 or BD5 (BD4> BD5), and is integrated by the intermediate horizontal connecting frame member 18 and the horizontal lower frame member 19. The back panel 15 having a height H and a width BW4 or BW5 (BW4> BW5) is obtained. Of course, the widths SW4 and SW5 are different from any of the widths SW1 to SW3, and the width BW4 or BW5 is different from any of the widths BW1 to BW3.

  The left and right side panels 13 and 14 having the height H and width SW4 or SW5 and the back panel 15 having the width BW4 or BW5 are combined with the left and right side panels 13 and 14 having the height H and width SW1, SW2 and SW3 described above. By arbitrarily combining with the back panel 15 having a height H and widths BW1, BW2, and BW3, it is possible to assemble a cargo carrier cart of a greater variety of sizes (planar areas). The left and right side panels 13 and 14 can also be configured by combining a small vertically long gate-shaped frame member 16 and a large vertically long gate-shaped frame member 17 in the same manner as the back panel 15 shown in FIG.

  The connecting means between the narrow vertically long gate-shaped frame member 16 or the large vertically long gate-shaped frame member 17 and the intermediate horizontal connecting frame member 18 in the case of constituting each panel 13 to 15 is not particularly limited, and any connecting means However, if an example is demonstrated based on FIG.8 and FIG.9, the intermediate | middle horizontal connection frame material 18 is arrange | positioned on the outer side of the panels 13-15, and the both ends are bent inward slightly. It has been. On the other hand, the column portion of the narrow vertical gate-shaped frame member 16 or the large vertical gate-shaped frame member 17 intersecting with the intermediate horizontal connecting frame member 18, that is, the panel excluding the column portions 16 a or 17 a located at both ends of the panels 13 to 12. A recessed portion 20 into which a part of the intermediate horizontal connection frame member 18 is fitted is formed by pressing at a position where the intermediate horizontal connection frame member 18 intersects with the intermediate horizontal connection frame member 18 of the column part 16b or 17b located in the middle in the width direction. Yes. Thus, the end faces of the both-end bent portions 18a and 18b of the intermediate horizontal connecting frame member 18 are the column portions 16a of the narrow vertically long gate-shaped frame member 16 positioned at both ends of the panels 13 to 15 or the substantially vertically long gate-shaped frame member 17. Indented portion 20 or large vertically long gate formed on strut portion 16b of narrow vertical gate-shaped frame member 16 fixed to the post portion 17a by welding in a state of being abutted in a T shape so as to be within the panel thickness range. The intermediate portion in the longitudinal direction of the intermediate horizontal connecting frame member 18 that fits into the recessed portion 20 formed in the column portion 17 b of the frame member 17 is fixed to the inner surface of the recessed portion 20 by welding.

It is a perspective view which shows a general load carrier cart. It is a top view which shows the folded state of the same cargo carrier cart. FIG. A is a front view of members constituting each panel, and FIG. B is an exploded elevation view omitting a load support base of a load carrier truck constructed according to the present invention. Each figure of A and B is a side view of the load carrying trolley provided with the left and right side panels with different widths configured by using the narrow vertical gate-shaped frame material. Each of FIGS. A and B is a rear view of a load carrying trolley equipped with a back panel having a different width and configured by using a narrow vertically long gate-shaped frame member. Each of FIGS. A and B is a side view of a load carrying trolley equipped with left and right side panels with different widths, which are configured using a substantially vertically long frame material. Each of FIGS. A and B is a rear view of a load carrying trolley equipped with a back panel having a different width, which is configured by combining a narrow vertical gate-shaped frame material and a large vertical portal frame material. FIG. 4 is a partially cut-out cross-sectional plan view showing a structure of a joint portion between a vertically long gate-shaped frame member and an intermediate horizontal connecting frame member 18. It is a partially cutaway elevation view of the same.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Load support stand 2,3,13,14 Left and right both-side panel 4,15 Back panel 5a-5d Wheel 6a-6d for movement Wheel mounting seat board 7 Connecting member 8 Hinge member 9 Portal frame material 10 Lower frame material 11 Vertical Crosspiece 12 Horizontal crosspiece 16 Narrow vertical long gate-shaped frame material 17 Large vertical long gate-shaped frame material 18 Intermediate horizontal connecting frame material 19 Horizontal lower frame material 20 Recessed portion

Claims (2)

A load carrying trolley in which panels are erected on at least three sides of the left and right sides and the rear side of a plane rectangular load support table, each panel comprising a horizontal lower frame member and lower ends of both struts Are fixed to the horizontal lower frame member and connected to the plurality of vertically long gate-shaped frame members arranged in parallel in the length direction of the horizontal lower frame member, and the plurality of vertically long gate-shaped frame members arranged in parallel to each other at an intermediate height position. It is composed of an intermediate horizontal connecting frame material that is integrated, and all of the vertically long gate-shaped frame members that constitute each panel have a narrow width between the two column parts and a wide width between the two column parts and the two column parts. A truck that consists of only two types of large vertical gate frames . The intermediate horizontal connection frame member is fixed at both ends to the inner side of the column portions positioned at both ends in the width direction of each panel among the column portions of the vertically long gate-shaped frame members constituting each panel. The column portion of the vertically long gate-shaped frame material that intersects with the intermediate horizontal connecting frame material is formed with a recessed portion, and the recessed portion and the intermediate horizontal connecting frame material are fixed to each other. Carriage truck described in 1.