JP4411603B2 - Transport cart - Google Patents

Description

  The present invention relates to a transport cart in which a detachable stay is installed between front edges of left and right side panels.

A transport cart in which a panel is erected on the three sides of the load support base and a detachable stay is laid between the front edges of the left and right side panels is known from Patent Document 1, for example. The detachable stay in this transport cart can be removed when loading / unloading to facilitate loading / unloading work. It is provided to obtain a reinforcing effect by connecting between the front edges of both side panels, and one end of which can be rotated around a vertical axis to a vertical column located at the front edge of one side panel. It is pivotally supported by a supported support member so that it can swing up and down, and the other end of the stay can be freely engaged with and disengaged from a locked portion provided on the vertical column side located at the front edge of the other side panel. A locking member is provided. Thus, in this type of conventional transport cart described in Patent Document 1 or the like, the locked portion provided on the other side panel side for locking the locking member of the stay has one end of the stay. In the same manner as the support member provided on one side panel side to support the shaft, a locked member supported rotatably around the vertical axis on the vertical column located at the front edge of the side panel is used. It was configured.
Japanese Unexamined Patent Publication No. 2000-71994

  In the conventional configuration as described above, when loading / unloading the luggage, the locked member protruding from the front edge of the side panel is rotated in a direction parallel to the side panel so as not to obstruct the loading / unloading of the luggage. Not only does this work take time and workability is reduced, but if this preparation work is neglected, there is a risk that the operator may injure by hitting a part of the body such as the arm against the locked member. Even if it is not connected, there is a risk that the worker's clothes may be caught and broken. In addition, the number of parts increased, resulting in an increase in assembly man-hours and high costs.

An object of the present invention is to provide a transport cart that can solve the above-described conventional problems, and its means is indicated by reference numerals of embodiments to be described later. In the transport cart in which a detachable stay 8 is installed between the front edges of 1A and 1B, one end of the stay 8 is placed around a vertical axis on a vertical column 9 located at the front edge of one side panel 1A. is rotatably supported pivotally supported swing vertically supporting member 10, the vertical column 12 located at the front edge of the other side panel 1B, in a position adjacent to the upper Ri the stay 8 good horizontal posture A small width portion 13 is formed by recessing a part of the peripheral wall of the vertical support column 12, and the other end of the stay 8 is fitted horizontally to the small width portion 13 of the other side panel 1B. Vertical that is removable and adjacent to the narrow portion 13 and its lower side A hook portion 16 that can only be raised and lowered is provided between the column portion 14 and the hook portion 16 receives the stay 8 in a horizontal posture in which the hook portion 16 is fitted to the vertical column 14 adjacent to the lower side of the small width portion 13. A portion (horizontal crosspiece 7) is provided on the other side panel 1B.

More specifically, when the present invention having the above-described configuration is implemented, as described in claim 2, the narrow portion 13 of the other side panel 1B has a vertical column 12 positioned at the front edge of the side panel 1B. The round pipe material to be formed is recessed in such a manner that the outer portion of the peripheral wall opposite to the side where the one side panel 1A is located is superimposed on the inner side of the inner portion of the peripheral wall, and is formed into a shape of a cross section C This can be configured. In addition, as described in claim 3, the receiving portion of the other side panel 1 </ b> B can be configured by a horizontal crosspiece 7 that is installed inside the peripheral frame 5 of the side panel 1 </ b> B.

Further, in the present invention described in claim 4, in the transport carriage in which the detachable stay 8 is installed between the front edges of the left and right side panels 1A and 1B, one end of the stay 8 is connected to the one side panel 1A. The vertical column 12 positioned at the front edge of the other side panel 1B is pivotally supported by a support member 10 rotatably supported by a vertical column 9 positioned at the front edge so as to be rotatable around a vertical axis. , Ri yo the stay 8 in the horizontal posture in a vertical direction a certain area adjacent to the upper, thin walled portion 19 of the front-rear direction thickness formed by crushing the peripheral wall of the vertical column 12 is provided, et al is, before Symbol stay 8 At the other end, a vertical strut portion (thick fitting portion 20) that can be freely fitted to and detached from the thin portion 19 of the other side panel 1B by swinging up and down and is adjacent to the lower side of the thin portion 19 is provided. On the other hand, a bifurcated portion 17 that can be fitted and removed only in the vertical direction is provided. Receiving portion bifurcated portion 17 receive the stay 8 became horizontal position fitted to the vertical struts (thick fitted portion 20) adjacent to the lower side of the thin portion 19 (horizontal crosspieces 7) The other side panel 1B is configured to be provided.

When carrying out the present invention described in claim 4, specifically, as described in claim 5, the receiving portion of the front Symbol other side panel 1B is inside the peripheral frame of the side panel It can be constituted by the installed horizontal crosspiece 7.

  According to the transport cart according to the present invention having the above-described configuration, the locked portion that locks the distal end portion of the stay includes the small-width portion in which the outer surface of the vertical column located at the front edge of the side panel is recessed, and the lower side thereof It is not necessary to provide a locked member that can be rotated around the vertical axis on the vertical column located at the front edge of the side panel as in the prior art, and it is possible to reduce the number of parts and assembly man-hours. Cost can be reduced. In addition, when using the stay, with the stay slightly inclined upward, the hook portion at the tip of the stay is horizontally swung from the front side and fitted into the narrow portion, and the stay is lowered to the horizontal posture. The stay hook is securely fitted in a horizontal position without using any separate parts, just by fitting the tip hook portion of the stay to the lower vertical strut portion of the small width portion and supporting it with the receiving portion. It can be installed between the left and right panels. Further, in the state where the hook portion at the tip of the stay is fitted to the vertical support portion below the small width portion, the hook portion at the tip of the stay and the small width portion move so that the front edges of the left and right side panels are separated from each other. This can be surely prevented by fitting in the vertical direction with the lower vertical column part, and the reinforcing effect on the left and right side panels is not reduced.

  Of course, when loading and unloading luggage, you can easily change the stay to a position that hangs along the front edge of one side panel in the reverse procedure, and you can load and unload luggage without being disturbed by the stay. At this time, there is no locked member that protrudes from the front edge of the side panel that locked the tip of the stay, so that the locked member is rotated in an unobstructed direction as in the prior art. Such preparation work is not necessary, and not only the workability is improved, but also the possibility of the operator being injured by the protruding locked member or being broken by hanging the clothes because the preparation work was neglected. There will be nothing and safety will be improved.

Further, according to the present invention, as is clear from the fact that it can be carried out as described in claim 2, wherein the narrow portions of the side panels, the vertical supporting columns located at the front edge of the side panel Compared with the case where another member forming the narrow portion is attached , the number of parts is reduced, and the trouble of joining the separate member is eliminated, so that it is easy to implement at low cost. Moreover, according to the structure of Claim 3, the separate member for exclusive use which comprises the receiving part which supports a stay in a horizontal posture becomes unnecessary, and also the effort which joins another member as the number of parts also decreases, It becomes easy to implement at low cost.

  According to the configuration of the present invention described in claim 4, the locked portion that locks the tip of the stay is formed in the fixed region in the vertical direction of the vertical column located at the front edge of the side panel. It is comprised by the thin-walled part which made thickness thin in the front-back direction, and the thick fitting part adjacent to the lower side. Therefore, as in the case of adopting the configuration of the present invention described in claim 1, it is possible to reduce the cost by reducing the number of parts and the number of assembly steps as compared with the conventional configuration, and the tip bifurcated portion of the stay is The stay can be installed between the left and right side panels in a horizontal position, or the stay can be mounted on one side panel by simply swinging it up and down so that it fits diagonally downward or escapes diagonally upward. It is possible to change the posture to hang down along the front edge, and the use / non-use switching operation of the stay can be performed very easily and easily.

  In addition, when using the stay, the front end bifurcated portion of the stay is fitted downward to the thick fitting portion on the lower side of the thin portion, so that the front edges of the left and right side panels move away from each other. Can be reliably prevented by fitting the bifurcated portion at the tip of the stay and the thick fitting portion in the vertical direction, and the reinforcing effect on the left and right side panels is not reduced. Of course, when the stay is not in use, there is no locked member that protrudes from the front edge of the side panel on which the tip of the stay is locked. As in the case of adopting the configuration, the preparatory work for rotating the locked member in an unobstructed direction is not required as in the prior art, not only improving workability but also neglecting the preparatory work. In addition, there is no risk of the operator being injured by the protruding locked member, and the clothes being hooked and broken, thereby improving safety.

Incidentally, according to the configuration of claim 5, different members of a private constituting a receiving portion for supporting the scan tape horizontally becomes unnecessary, there is no trouble of still joining another member the number of parts is reduced It becomes easy to implement at low cost.

  A specific first embodiment of the present invention will be described below with reference to FIGS. 1 to 5 of the accompanying drawings. The left and right side panels indicated by 1A and 1B in FIG. The rear panel 3 is erected from the rear side of the load support base 2 so as to connect the rear edges of the left and right side panels 1A and 1B. Wheels 4 are disposed at the lower four corners of the load support base 2. Although a detailed description is omitted here, this type of carriage is generally configured to be foldable by rotating upward around a horizontal axis so that the load support base 2 is along the inner side of the back panel 3. At the same time, either one of the left and right side panels 1A and 1B, for example, the side panel 1B, can be rotated and folded around the vertical axis inward with respect to the back panel 3 so as to overlap the folded load support base 2. Composed. Further, all the panels 1A, 1B, and 3 are configured in a lattice shape by laying a plurality of vertical bars 6 and a plurality of horizontal bars 7 inside the peripheral frame 5. Between the left and right side panels 1A and 1B, a stay 8 that is freely detachable is installed.

  As shown in FIGS. 1 and 2, one end of the stay 8 is at an intermediate height of the vertical support 9 (front vertical portion of the peripheral frame 5) located at the front edge of one side panel 1A, in this embodiment, on the upper side. A shaft that can be swung up and down around a horizontal support shaft 11 on a support member 10 that is rotatably fitted around a vertical axis of a round pipe member constituting the vertical support column 9 at an upper position of the horizontal beam member 7. It is supported. The support member 10 is supported on the horizontal bar member 7 and includes a vertical surface 10 a that abuts against the side surface of the horizontal bar member 7 and limits the rotation angle.

The vertical column 12 positioned at the front edge of the other side panel 1B is formed with a small width portion 13 and a vertical column portion 14 adjacent to the lower side of the small width portion 13. The narrow portion 13 is located at a position slightly above the stay 8 when in the horizontal posture , in this embodiment, at a position slightly apart above the upper horizontal crosspiece 7, of the peripheral wall of the round pipe material constituting the vertical support column 12. As shown in FIG. 4, the outer portion (the peripheral wall portion opposite to the side where the side panel 1A is located) is formed to be recessed in the shape of the cross section C as shown in FIG. The vertical column 12 between the narrow portion 13 and the horizontal crosspiece 7 below the original is left as it is, thereby forming a vertical column 14. Note that the upper and lower ends of the narrow portion 13 are inclined obliquely in the vertical direction, and the front shape of the recessed portion forming the narrow portion 13 is trapezoidal.

  At the tip of the stay 8, there is provided a hook portion 16 formed by fixing a hook member 15 obtained by bending a belt-like plate. The hook portion 16 has a bowl shape in plan view, and as shown in FIG. 4, the hook portion 16 can be fitted horizontally to the small width portion 13 from the front side of the side panel 1B. By moving downward from the narrow portion 13, the size and shape can be fitted to the vertical support column 14 on the lower side of the narrow portion 13. In other words, at the tip of the stay 8, the horizontal portion 13 can be fitted and detached in the horizontal direction with respect to the narrow portion 13 of the side panel 1B, and between the narrow portion 13 and the vertical strut portion 14 adjacent to the lower portion thereof. A hook portion 16 that can only be raised and lowered is provided.

In the above configuration, when the stay 8 is used, the stay 8 is swung up and down around the horizontal support shaft 11 so that the hook portion 16 at the tip thereof is substantially the same height as the small width portion 13 on the side panel 1B side. In this state, the stay 8 is rotated together with the support member 10 around the vertical column 9 of the side panel 1A, and the hook portion 13 is fitted to the small width portion 13 of the side panel 1B from the front side as shown in FIG. Let In this state, the stay 8 is rotated downward around the horizontal support shaft 11, and as shown in FIG. 3, the hook portion 13 is fitted to the vertical strut portion 14 adjacent to the lower side of the small width portion 13, and the The hook portion 16 is placed on and supported by the horizontal crosspiece 7 of the side panel 1B. As a result, both ends of the stay 8 are horizontally supported by the upper horizontal bars 7 of the left and right side panels 1A and 1B via the support member 10 and the hook portion 16, and the load loaded on the load support base 2 is dropped. Since the hook portion 16 fitted to the vertical column portion 14 of the side panel 1B can only be moved upward with respect to the vertical column portion 14, the front edge side of the left and right side panels 1A and 1B is It can be surely prevented from spreading in directions away from each other.

  The stay 8 in use can be separated from the side panel 1B in the reverse procedure of when the stay 8 is installed between the left and right side panels 1A and 1B. That is, the stay 8 is rotated upward around the horizontal support shaft 11 to disengage the hook portion 16 from the vertical column portion 14 into the small width portion 13, and in this state, the stay 8 together with the support member 10 is attached to the side panel 1A. What is necessary is just to rotate around the vertical support | pillar 9 and to detach | leave the hook part 16 ahead from the vertical support | pillar 9 (small width part 13) of the side panel 1B. The stay 8 separated from the side panel 1B is rotated around the horizontal support shaft 11 to hang vertically from the support member 10 and, if necessary, the support member 10 is rotated around the vertical column 9 of the side panel 1A. Thus, it can be positioned on the front side of the vertical column 9 of the side panel 1A.

  Next, a second embodiment of the present invention will be described with reference to FIGS. Since the structure for attaching the stay 8 using the support member 10 to the side panel 1A in the second embodiment is the same as that in the first embodiment, the corresponding portions are denoted by the same reference numerals and description thereof is omitted.

  In the second embodiment, a bifurcated portion 17 is provided at the tip of the stay 8. The bifurcated portion 17 has a bifurcated member 18 formed by bending a belt-like plate into a C-shape with a diameter that can be fitted to a round pipe material constituting the vertical support column 12 positioned at the front edge of the side panel 1B at the tip of the stay 8. In a plan view, it is fixed in a direction that looks like a C shape.

On the other hand, on the side panel 1B side, a thin wall portion 19 and a thick fitting portion 20 adjacent to the lower side of the thin portion 19 are provided on the vertical column 12 at the front edge. The thick-fitting portion 20 is disposed at the same height as the stay 8 in the horizontal position (a position directly above the upper horizontal crosspiece 7), and the thin-walled portion 19 swings the stay 8 in the horizontal position upward. It is formed in the vertical region where the movement locus of the bifurcated portion 17 at the tip and the vertical column 12 overlaps. Specifically, as shown in FIG. 8, the thin-walled portion 19 is formed by crushing a round pipe material constituting the vertical support column 12 in a flat shape from the front-rear direction, and its thickness (thickness in the front-rear direction). ) Is slightly smaller than the width of the tip opening of the bifurcated portion 17. As shown in FIG. 7, the thick-fitting portion 20 is flattened from the front and rear direction so that only the inner half on one side of the side panel 1A is continuous with the thin-walled portion 19, and the outer half is vertical. Although the peripheral wall of the round pipe material which comprises the support | pillar 12 is left as it is, it may be comprised as it is with the round pipe material which comprises the vertical support | pillar 12 as a whole.

  In the above configuration, when the stay 8 is used, the stay 8 is swung up and down around the horizontal support shaft 11 and rotated around the vertical support column 9 of the side panel 1A together with the support member 10 so that the bifurcated portion at the tip. 17 is positioned on the inner side above the upper end of the thin portion 19 on the side panel 1B side (the side where the side panel 1A is located), and then the stay 8 is swung downward around the horizontal support shaft 11 to form a bifurcated portion. 17 is moved to the lower end side of the thin portion 17 while being fitted outwardly with respect to the thin portion 19 on the side panel 1B side. Finally, the bifurcated portion 17 is fitted to the thick fitting portion 20 adjacent to the lower side of the thin portion 19 downward from above, and the bifurcated portion 17 is fitted on the horizontal crosspiece 7 of the side panel 1B. To be placed. As a result, both ends of the stay 8 are horizontally supported by the upper horizontal bars 7 of the left and right side panels 1A and 1B via the support member 10 and the bifurcated portion 17, and the load loaded on the load support base 2 is dropped. Since the bifurcated portion 17 fitted to the thick fitting portion 20 of the side panel 1B can be moved only upward with respect to the thick fitting portion 20, the left and right side panels 1A are useful for prevention. , 1B can be reliably prevented from spreading in the direction away from each other.

  The stay 8 in use can be separated from the side panel 1B in the reverse procedure of when the stay 8 is installed between the left and right side panels 1A and 1B. That is, the stay 8 is rotated upward around the horizontal support shaft 11 to disengage the bifurcated portion 17 from the thick-fitting portion 20 into the thin-walled portion 19, and the stay 8 is further swung upward to be bifurcated. What is necessary is just to detach | separate the part 17 from the thin part 19 to upper inner side. The stay 8 separated from the side panel 1B is rotated around the horizontal support shaft 11 to hang vertically from the support member 10 and, if necessary, the support member 10 is rotated around the vertical column 9 of the side panel 1A. Thus, it can be positioned on the front side of the vertical column 9 of the side panel 1A.

  Note that the hook portion 16 and the bifurcated portion 17 can be formed integrally with the stay 8 by processing the end portion of a member (for example, a round pipe material) constituting the stay 8. Moreover, the support structure of the stay 8 with respect to the vertical support | pillar 9 by the side panel 1A side is not limited to the thing of the said embodiment.

Fig. A is a longitudinal rear view showing the stay support structure in the first embodiment, and Fig. B is a side view of the main part. It is a cross-sectional top view which shows the stay base part of the stay support structure shown in FIG. It is a cross-sectional top view which shows the stay front-end | tip part of the stay support structure shown in FIG. In the stay support structure shown in FIG. 1, it is a cross-sectional top view which shows the state just before separating a stay front-end | tip part from a side panel. It is a perspective view which shows the whole conveyance cart. Fig. A is a longitudinal rear view showing the stay support structure in the second embodiment, and Fig. B is a side view of the main part. It is a cross-sectional top view which shows the stay front-end | tip part of the stay support structure shown in FIG. FIG. 7 is a cross-sectional plan view showing a state immediately before the stay tip is separated from the side panel in the stay support structure shown in FIG. 6.

Explanation of symbols

1A, 1B Left and right side panels 8 Stays 9, 12 Vertical support 10 Support member 11 Horizontal support shaft 13 Narrow support section 14 Vertical support section 15 Hook member 16 Hook section 17 Forked section 18 Forked section 19 Thin section 20 Thick part to be fitted

Claims (5)

In a transport cart with a detachable stay erected between the front edges of the left and right side panels, one end of the stay is supported on a vertical support located at the front edge of one side panel so as to be rotatable around a vertical axis. is pivotally supported swing vertically support member, the vertical column positioned at the front edge of the other side panel, a position adjacent to the upper Ri by the stearate over the horizontal posture, the peripheral wall of the vertical column A small width part formed by recessing a part thereof is provided , and the other end of the stay is detachable in the horizontal direction with respect to the small width part of the other side panel. A hook portion that can only be raised and lowered is provided between adjacent vertical strut portions, and the receiving portion that receives the stay in a horizontal posture in which the hook portion is fitted to a vertical strut portion adjacent to the lower side of the small width portion A transport cart provided on the other side panel. The small width portion of the other side panel is a round pipe material constituting a vertical column located at the front edge of the side panel, and the outer wall portion of the peripheral wall opposite to the side where the one side panel is located is the peripheral wall. The transport cart according to claim 1, wherein the transport cart is configured to be recessed so as to overlap the inner portion of the inner shape and to be formed into a shape having a cross-sectional shape C.   The transporting carriage according to claim 1 or 2, wherein the receiving portion of the other side panel is configured by a horizontal crosspiece erected inside the peripheral frame of the side panel. In a transport cart with a detachable stay erected between the front edges of the left and right side panels, one end of the stay is supported on a vertical support located at the front edge of one side panel so as to be rotatable around a vertical axis. is pivotally supported swing vertically support member, the vertical column positioned at the front edge of the other side panel, vertically fixed region adjacent to the upper Ri by the stearate over the horizontal posture, the vertical column thin walled portion is provided et be the longitudinal direction thickness formed by crushing the peripheral wall of the of, the other end of the pre-Symbol stay, and freely Hamada' by swing vertically relative to the thin portion of the other side panel A bifurcated portion that is detachable only in the vertical direction with respect to the vertical strut portion adjacent to the lower side of the thin portion is provided, and the bifurcated portion is fitted to the vertical strut portion adjacent to the lower side of the thin portion. A receiving portion for receiving the stay in a horizontal posture is the other side It is provided in the channel, transport truck. 5. The transport cart according to claim 4 , wherein the receiving portion of the other side panel is configured by a horizontal crosspiece erected inside the peripheral frame of the side panel .