JP4411584B2 - Carriage truck - Google Patents

Description

  The present invention relates to a load carrying cart having a pulling tool attached to the front end of a cart body having a mesh panel standing upright.

As described above, for example, Japanese Patent Application Laid-Open No. H10-133707 discloses a load carrying cart in which a pulling tool is attached to the front end of a cart body in which a mesh panel is erected around the periphery. This towing tool is used in a state of extending almost horizontally from the front end of the carriage when towing the carriage, but when it is not used for towing, it is in a retracted posture that stands up almost vertically so as not to get in the way. It is necessary to switch. Thus, in the conventional device as described in Patent Document 1, a special structure is adopted for the bearing portion on the cart side that supports the base portion of the traction tool so that it can be raised and lowered, and the traction tool can be held in a vertical standing posture. It was configured as follows.
Japanese Patent Laid-Open No. 10-71953

  In the configuration that can hold the conventional traction tool in a vertical standing posture, a special structure is adopted for the bearing part on the cart side that supports the base part of the traction tool so that it can be raised and lowered. In addition, since the means for holding the traction tool in the vertical standing position is at the base support position of the traction tool, when an external force in the direction of rotating the traction tool acts on the tip of the traction tool, An extremely large rotational force acts on the base support position of the traction tool, and there is a risk that the traction tool may be easily damaged due to insufficient strength of the means for holding the traction tool in a vertical standing posture.

An object of the present invention is to provide a load carrying cart that can solve the above-described conventional problems, and its means is denoted by reference numerals of embodiments to be described later. A load carrying trolley in which a traction tool 8 is attached to the front end of a trolley main body 1 on which a mesh panel 4 is erected, and the traction tool 8 is supported so as to be swingable between a horizontal posture and a standing posture. In addition, a hook 14 that is movable in the length direction is provided, and the hook 14 can be engaged with the horizontal wire 4a of the mesh panel 4 adjacent to the pulling tool 8 in the standing posture, so that the pulling tool 8 can be held in the standing posture. In the load carrying cart configured as described above, the hook 14 moves in the length direction of the wire portion 10b and rotates around the wire portion 10b with respect to the wire portion 10b in the length direction constituting the traction tool 8. it and the door is configurable To have.

  When the mesh panel 4 around the cart body 1 is foldable on the cart body 1, as described in claim 2, the hook 8 pulls the mesh panel 4 in a folded state located at the uppermost position. The traction tool 8 can be configured to be held in an upright position by being engaged with a horizontal wire 4b adjacent to the tool 8.

In addition, as described in claim 3 , a bogie connection vertical pin 9 protrudes from the rear end of the bogie main body 1, and the pulling tool 8 has a connection vertical hole through which the vertical pin 9 of another vehicle passes. When the portion 15 is provided, the connecting vertical hole portion 15 is provided between the left and right wire portions 10b and 10c near the tip U-turn portion 10a of the V-shaped wire 14 constituting the traction tool 8. And the tip U-turn portion 10a. In this case, the hook 14 is attached to one side of the left and right wire portions 10b and 10c of the V-shaped wire 14.

According to a fourth aspect of the present invention, the traction tool 8 is provided with a laterally supporting shaft 11 at the base, and the supporting shaft 11 has a protruding length on the other end side longer than a protruding length on one end side. At the same time, a mounting hole 16a for a retaining pin 16 is provided on the other end protruding portion 11a side, and a pair of left and right protrusions 11a and 11b of the support shaft 11 can be fitted to the front end of the carriage body 1 at intervals. Bearing members 17 and 18 are provided, the retaining pins 16 mounted in the mounting holes 16 a prevent the pivot 11 from moving freely with respect to the pair of left and right bearing members 17 and 18, and the supporting shafts 16 are removed by removing the retaining pins 16. 11 can be configured to be removed from the pair of left and right bearing members 17 and 18.

  According to the load carrying cart according to the present invention having the above-described configuration, when holding a towing tool that is not used in an upright position, the hook is moved in the length direction of the towing tool to be raised and adjacent to the towing tool in the upright position. By lowering the hook along the length direction of the traction tool with the hook inserted between the two upper and lower horizontal wires at the appropriate height of the mesh panel, and engaging the lower horizontal wire The hook can be held in a standing posture.

  Thus, the hook provided on the traction tool can be easily and easily held in the standing posture, but the hook is located at a position away from the base support position of the traction tool toward the tip side, and Even if an external force in the direction of rotating the traction tool acts on the tip portion of the traction tool, the hook can hold the traction tool in an upright posture sufficiently against the external force. In other words, compared with the conventional configuration in which means for holding the traction tool in the vertical standing posture is provided at the base support position of the traction tool, the strength for holding the traction tool in the vertical standing posture can be significantly increased.

In addition, the greatest feature of the present invention is that the hook can move in the length direction of the traction tool. Therefore, when the traction tool is placed in a standing position along the mesh panel, the hook is placed between the two horizontal wires on the mesh panel. The hook size is adjusted so that the hook engages with the horizontal wire of the mesh panel in a state where there is substantially no play in the inside and outside by moving the hook so as to be fitted from the bottom and lowering the hook as it is. By setting, the towing tool can be securely held in the standing posture along the mesh panel, and the towing tool held in the standing posture by the hook is held in the standing posture without being inclined outward. There is no fear that the traction tool will get in the way. In addition, the accuracy of the mounting position of the hook with respect to the traction tool is almost unnecessary, and the effect is great in terms of manufacturing. Furthermore, according to the configuration of the present invention, the configuration is simpler and less expensive than the case where the hook is fixed in the direction in which the hook is fitted between the horizontal wires of the mesh panel when the towing tool is raised. In addition, the horizontal position of the hook when the towing tool is raised may interfere with the vertical wire of the mesh panel. Can be combined.

  Of course, even when the mesh panel around the cart body is foldable on the cart body, the hook is movable in the length direction of the traction tool. The traction tool can be held in an upright position by being engaged with the horizontal wire of the mesh panel in the folded state.

In addition, according to the structure of Claim 3 , it is for connection of the tip of the traction tool required when connecting the load conveyance trolleys in the shape of a train using the traction tool and the trolley connection vertical pin at the rear end of the trolley body. Not only can the vertical hole be constructed at a lower cost than when another pipe material is welded, but there is no pipe material arranged in the front-rear horizontal direction at the tip of the traction tool in an upright position. In addition, the towing tool can be held sufficiently close to the mesh panel, and there is no possibility that the pipe material protruding forward will become an obstacle.

Moreover, according to the structure of Claim 4 , like the structure of patent document 1, operation with the force which narrows the V-shaped wire material which comprises a traction tool inside against resistance to elasticity is performed. Therefore, the traction tool can be easily attached and detached, and the maintenance performance of the traction tool that needs to be replaced due to damage or deformation can be improved.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a carriage body, a pair of left and right free wheels 2 on the lower side of the front end side in the longitudinal direction, and the longitudinal direction. A pair of left and right fixed wheels 3 are provided on the lower side of the rear end side, and mesh panels 4 are erected on the four sides. Each mesh panel 4 can be folded so as to be superimposed on the cart body 1 by a conventionally known configuration. A pair of left and right stacking brackets 5 are attached to the front end and the rear end of the carriage main body 1, respectively. This stacking bracket 5 is an actual stacking groove engagement that fits to the upper sides of both the front and rear mesh panels 4 of the lower load transport cart when stacking the load transport cart with the mesh panels 4 assembled. In addition to having the portion 6 at the lower end, as shown in FIG. 4, when loading the load carrying cart in a state where the mesh panel 4 is folded over the cart body 1, the upper load carrying cart is An empty stacking plate-like support portion 7 fitted to and supported by the actual stacking groove-shaped engaging portion 6 at the lower end of the bracket 5 is provided at the upper end.

  As shown in FIG. 3, in the load transport cart having the above-described configuration, a traction tool 8 is provided at the center in the width direction of the front end of the cart body 1, and the connecting vertical is located at the center position in the width direction of the rear end of the cart body 1. A pin 9 is projected upward. As shown in FIGS. 5 to 7, the traction tool 8 is fixed so as to connect both ends of a V-shaped wire 10 formed by bending one wire (round bar-shaped steel) into a V-shape. Intermediate position in the length direction of the short horizontal wire 12 and the V-shaped wire rod 10 laid between the left and right wire rod portions 10b, 10c near the left and right horizontal support shaft 11, the tip U-turn portion 10a of the V-shaped wire rod 10. And the long horizontal wire 13 installed between the left and right wire portions 10b and 10c, and the hook 14 attached to one wire portion 10b between the long horizontal wire 13 and the support shaft 11, and the tip U A connecting vertical hole 15 is formed between the turn portion 10 a and the short horizontal wire 12.

  The hook 14 is loosely fitted to the wire portion 10b so that the wire portion 10b can be moved in the length direction and rotated around the wire portion 10b, and the tubular body 14a has a hook 14a. The hook main body 14b is fixed and protrudes substantially perpendicular to the wire portion 10b.

  The support shaft 11 has a long protruding portion 11a protruding from the wire portion 10b of the V-shaped wire rod 10, and a short protruding portion 11b protruding from the wire portion 10c of the V-shaped wire rod 10 and having a length about half of the long protruding portion 11a. A mounting hole 16a (see FIG. 6) for the retaining pin 16 is provided at a substantially central position in the length direction of the long protruding portion 11a.

  On the other hand, a pair of left and right bearing members 17, 18 that support both end protrusions 11 a, 11 b of the support shaft 11 are attached to the front end of the carriage body 1. Both the bearing members 17 and 18 are provided in such a state that the distance between the inner ends thereof is slightly wider than the length from the end of the short protruding portion 11b of the support shaft 11 to the outside of the wire portion 10b, as shown in FIG. The long protruding portion 11a of the support shaft 11 with the retaining pin 16 removed is inserted into one bearing member 17 from an oblique direction, and the short protruding portion 11b of the support shaft 11 is concentric with the other bearing member 18. In this state, the support shaft 11 is slid toward the bearing member 18 so that the short projecting portion 11 b is inserted into the bearing member 18, and the wire portion 10 c is adjacent to the bearing member 18. At this time, the retaining pin mounting hole 16a of the long projecting portion 11a is exposed to the inside of the bearing member 17, so that the retaining pin 16 is mounted in the retaining pin mounting hole 16a as shown in FIG.

  The traction tool 8 supported by the bearing members 17 and 18 as described above is swingable up and down around the support shaft 11, and is allowed to move freely in the length direction of the support shaft 11. 16 and the bearing member 17 and the contact between the wire portion 10c and the bearing member 18 are prevented. As the retaining pin 16, a split pin, a beta pin, and other bolts and nuts can be used, but the condition is that they can be removed. Therefore, when replacing the traction tool 8 that has been unjustly deformed or damaged due to a collision with another object or the like, the retaining members 16 are removed, and the bearing members 17 and 18 are reversed in the order of attachment. The traction tool 8 can be removed from the cart body 1 by removing the support shaft 11 from the main body 1.

  As shown in FIGS. 3 and 7, the bearing members 17 and 18 are L-shaped for each bearing member fixed in contact with the lower front end corner portion of the front end left and right lateral frame member 19 of the carriage body 1. Bearing members 17 and 18 made of U-shaped members are fixed to the substrate 20 with the upper surface of the long lower piece abutting against the lower surface of the L-shaped substrate 20 and the tip surface of the short upper piece is perpendicular to the L-shaped substrate 20. Abutting and adhering to the surface. Further, the connecting vertical pin 9 on the rear end side of the cart body 1 is in contact with the lower rear end corner portion of the rear frame left and right lateral frame member 21 of the cart body 1 and fixed to the lower surface of the L-shaped substrate 22. It is fixed to the upper surface of the horizontal support plate 23 that is in contact with and fixed to the rear and extends backward.

  In the load transport cart having the above configuration, when the load transport cart (see FIG. 1) in which the mesh panel 4 is assembled is towed by the pulling tool 8, or the mesh panel 4 is folded on the cart main body 1. When towing the load carrying cart (see FIG. 4) (including the stacked state of a plurality of load carrying carts) with the towing tool 8, as shown in phantom lines in FIGS. It is sufficient to use the traction tool 8 in a state of being tilted to a horizontal position. When a plurality of load transport carts are connected and pulled in a train shape, as shown in FIG. 7, the tow tool 8 of the rear load transport cart is tilted around the support shaft 11 in a horizontal posture. What is necessary is just to fit the vertical hole 15 for connection of the front-end | tip to the vertical pin 9 for truck connection of the rear end of a front side load conveyance trolley | bogie.

  When the traction tool 8 is not used, as shown in FIGS. 1, 2 and 8A, the traction tool 8 is opened upward around the support shaft 11, but at this time, the hook 14 is moved along the wire portion 10b. When the traction tool 8 stands up when the traction tool 8 stands up as shown in FIG. 8A, the mesh panel adjacent to the traction tool 8 to stand up is moved. 4 between the horizontal wires 4a. Then, the hook 14 with the hook body 14b entering between the horizontal wires 4a of the mesh panel 4 is lowered along the wire portion 10b, the hook body 14b is engaged with the horizontal wire 4a of the mesh panel 4, and the traction tool 8 is engaged. May be held in a standing posture.

  As shown in FIG. 4, when the mesh panel 4 is folded on the cart body 1, as shown in FIG. 8, the hook body 14b of the hook 14 of the traction tool 8 raised is positioned at the uppermost position. What is necessary is just to descend | fall along the wire part 10b so that it may engage with the horizontal wire 4b of the side adjacent to the pulling tool 8 of the mesh panel 4 of a horizontal state.

It is a side view of a load conveyance trolley. It is a front view of a load conveyance trolley. It is a partially notched top view which shows a trolley | bogie main body. It is a side view which shows the stacking state of the load conveyance trolley in the folding state of a mesh panel. It is a top view which shows a traction tool and its support means. It is a top view explaining the attachment method of the traction tool with respect to a support means. It is a vertical side view of the principal part which shows the connection state of the back and front load conveyance trolley | bogie by a traction tool. Fig. A is a longitudinal side view of the main part showing a normal standing holding state of the traction tool, and Fig. B is a vertical side view of the main part showing a state where the traction tool is held up using a folded mesh panel. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bogie main body 4 Mesh panel 8 Traction tool 9 Bogie connection vertical pin 10 V-shaped wire 10a Tip U-turn part 10b, 10c of V-shaped wire Both-side wire part 11 of V-shaped wire 11 Support shafts 11a, 11b 12, 13 Horizontal wire 14 Hook 14a Cylindrical body 14b Hook body 15 Connecting vertical hole 16 Retaining pin 16a Retaining pin mounting hole 17, 18 Bearing member

Claims (4)

A load carrying trolley with a traction tool attached to the front end of a trolley body with a mesh panel standing around it, wherein the traction tool is supported swingably between a horizontal posture and a standing posture, A load carrying cart having a hook movable in its length direction and configured to be able to hold the towing tool in the standing posture by engaging the hook with the horizontal wire of the mesh panel adjacent to the towing tool in the standing posture. The load carrying cart , wherein the hook is configured to be capable of moving in the longitudinal direction of the wire rod portion and rotating around the wire rod portion with respect to the wire rod portion in the length direction constituting the traction tool .   The mesh panel around the cart body is foldable on the cart body, and the hook is engaged with a horizontal wire adjacent to the pulling tool 8 of the mesh panel in the folded state located at the uppermost position. The load carrying cart according to claim 1, configured to hold the towing tool in an upright posture. A bogie connecting vertical pin protrudes from the rear end of the bogie main body, and the towing tool is provided with a connecting vertical hole through which the vertical pin of the other bogie penetrates. The V-shaped wire is formed between the left and right wire portions near the tip U-turn portion of the V-shaped wire and between the tip U-turn portion, and the hook is formed between the left and right wire portions of the V-shaped wire. are attached, et al on one side, load transport vehicle according to claim 1 or 2. The traction tool is provided with a laterally supporting shaft at the base, and the supporting shaft has a protruding length on the other end side longer than a protruding length on one end side, and a mounting hole for a retaining pin is provided on the other end protruding portion side. A pair of left and right bearing members are provided at the front end of the main body of the carriage at intervals at which both end protrusions of the support shaft can be fitted, and a pair of left and right bearing members are attached to the pair of left and right bearing members by retaining pins mounted in the mounting holes. It prevents floating of the support shaft, configured to Nukitoreru the spindle from the right and left pair of bearing members by the removal of the stop pin loss, load transport vehicle according to any one of claims 1 to 3.

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