JP3204279U - Coupling device for handcart and connected handcart transported by the connector - Google Patents

Abstract

Kind Code: A1 A coupling tool having a simple structure and capable of easily coupling a plurality of hand-carried carts, and a coupled hand-carried cart having a large loading area that is easily coupled and assembled by the coupling tools. provide. In the plurality of handcarts 1, the side surfaces of the load carriers 6 of the adjacent handcarts 1 are in contact with each other, and are connected to handle attachment holes 15 formed in the respective load carriers of the adjacent handcarts 1. The coupling bolt 2 is disposed so as to cross the abutting portion in which the two bolts 31 are inserted, fastened with a nut from the lower surface side, and fixed to each of the hand carts 1 adjacent to each other, A plurality of handcarts 1 are connected by a connector 2 to obtain a connected handcart 1 having a loading platform having a total area of the loading platforms 6 of the plurality of carts 1. [Selection] Figure 1

Description

  The present invention relates to a coupling device for a hand cart that couples a plurality of hand carts equipped with casters, and a coupled hand cart that is coupled by the coupling device.

  Conventionally, a configuration in which a plurality of hand carts can be connected and used is known. For example, in a transport cart in which a plurality of free wheels are provided on the lower surface of a rectangular horizontal load support plate, the lower surface of the load support plate rotates in a horizontal plane to a position corresponding to each end surface. Either a connector whose base end is supported so that it can be operated, or a holder that engages with the tip of the connector of another transport carriage and holds the connector so that it does not rotate is provided. Thus, a configuration in which a plurality of transport carts are connected is known (see Patent Document 1).

  In addition, even when a plurality of trucks are connected and run and turned while pulling the leading truck, the second and subsequent trucks follow substantially the same trajectory as the first truck. A configuration is known in which a corner of a narrow passage can be easily passed (see Patent Document 2).

JP 2004-230998 A JP 2000-159116 A

  In the conventional example as shown in Patent Document 1, one of the transport carts to be connected is provided with a connector whose base end is supported so as to be able to rotate in a horizontal plane, and the other is a connector. It is necessary to provide a holder that engages with the tip of the connector so that the connector does not rotate, and the configuration is not necessarily considered simple.

  Moreover, in the conventional example as shown in Patent Document 2, there is a problem that a large article that cannot be placed on one carriage cannot be placed if the plurality of transport carriages are connected in a row.

  The present invention is intended to solve the above-mentioned conventional problems, and has a simple structure and realizes a connecting device that can easily connect a plurality of hand carts, and the connecting device can be easily used. Connected and hand-carried carts with a large mounting area so that large items that cannot be put on one hand-carried cart or can be transported in large quantities can be transported collectively. The challenge is to achieve this.

  In order to solve the above-mentioned problem, the present invention connects a plurality of handcarts with a handle and a caster, and has a load carrier having a total area of the load carrier areas of the plurality of handcarts. A handcart transporter used for assembling the handcart, wherein the handcart transporter is connected to a connecting plate and a plurality of adjacent carts of the handcart to which the connecting plate is to be connected. And the connecting plate is formed on each of the loading platforms that are in contact with each other in a state in which the side surfaces of the loading platforms of the adjacent carts that are connected to each other cross the abutting portions that are in contact with each other. A hand truck carrier coupling device, wherein the bolt is inserted into the mounting hole and a nut screwed into the bolt is fixed to the loading platform of the hand truck adjacent to each other. To provide.

  The connecting plate is preferably substantially drum-shaped in plan view, and the bolt is preferably configured to stand and be fixed at a corner portion of the connecting plate.

  In order to solve the above-mentioned problems, the present invention comprises a loading platform having a total area of loading areas of a plurality of hand carts, wherein the plurality of hand carts are connected by a coupling tool having a connecting plate and a bolt. A plurality of coupled hand carts, each having a handle and a caster, and the side surfaces of the connected carts of the adjacent hand carts are in contact with each other. The connecting plate is inserted through the mounting holes formed in the respective contacting platforms in such a state that the side surfaces of the loading platforms of the hand carts adjacent to each other cross the contacting portions that are in contact with each other. Provided is a coupled hand cart that is fixed to a loading platform of a hand cart adjacent to each other by the bolt and a nut screwed to the bolt.

  It is preferable that the side surfaces of the connected carts of the handcarts that are adjacent to each other are the long side surfaces of the rectangular cargo platform in plan view.

  In each of the plurality of handcarts, a unidirectional caster is attached to the lower surface on the distal end side in the traveling direction of the loading platform, and an omnidirectional caster is mounted on the lower surface on the proximal end side in the traveling direction to which the handle of the loading platform is attached. Adjacent handcarts that are attached and connected to each other preferably have a structure in which a connecting tool is fixed and connected at the front end side in the traveling direction of the loading platform.

  It is preferable that the handles of the connected carts adjacent to each other are fastened to each other with a band.

  According to the present invention, a connecting tool for connecting a plurality of hand-carried carts has a simple configuration, and this connecting tool makes it possible to connect a plurality of hand-carried carts very easily. It is possible to assemble a connected hand truck with a large mounting area so that a large article that cannot be placed on a car can be placed, or a large quantity of articles can be transported collectively.

It is the front view (a) and perspective view (b) which show the two normal connection handcart vehicles connected with the connecting tool of the handcart concerning the present invention. They are the perspective view (a) and the front view 4 (b) which show the Example of the connection handcart which was connected with the connector of the handcart according to this invention. It is a top view which shows the lower surface of the said 2 unit | set connection push cart. It is a figure which shows the coupling tool of the said Example, (a) is a top view, (b) is a side view. It is a figure which shows the part by which the loading platform of two connected handcarts is connected with the connector of the said Example, (a) is a top view, (b) is AA sectional drawing. It is a front view which shows the connection handcart which was fastened with the band. It is a perspective view which shows the modification of the connection handcart concerning this invention.

  EMBODIMENT OF THE INVENTION The form for implementing the connection tool of the handcart concerning this invention and the connection handcart connected by this connector is demonstrated below with reference to drawings based on an Example.

  The coupling device of the hand cart of the present invention connects a plurality of conventionally known hand carts with their side edge surfaces in contact with each other. The connected hand cart of the present invention is formed by connecting a plurality of ordinary hand carts to each other by the connector of the present invention.

  1 to 7 illustrate an embodiment of a handcart transporter according to the present invention and a connected handcart connected by the connector.

  In this embodiment, a plurality of normal hand carts are used as two normal hand carts 1 as shown in FIGS. 1 (a) and 1 (b). 2 is connected, and has a loading platform 7 having a loading area 7 times that of the loading platform 6 of the hand cart 1, a configuration is obtained in which a coupled hand cart 3 as shown in FIGS. 2 (a) and 2 (b) is obtained. explain.

  1 (a), 1 (b), 2 (a), 2 (b), two handcarts 1 have a loading platform 6, casters (an omnidirectional caster 10 and a unidirectional caster 11) and a handle 12, respectively. I have. Although the loading platform 6 of the hand cart 1 is rectangular in plan view, in this specification, the short side of the loading platform 6 of the hand cart 1 is referred to as the short side, and the long side is referred to as the long side. A direction along the short side is referred to as a short side direction, and a direction along the long side is referred to as a long side direction.

  As shown in FIG. 1 (b), FIG. 2 (a), and FIG. 3, the loading platform 6 is formed with handle attachment holes 15 at its four corners in plan view, and is further provided with four corners. The caster mounting holes are respectively formed inside the handle mounting holes 15 in the longitudinal direction.

  There are two types of caster mounting holes: omnidirectional caster mounting holes 16 and unidirectional caster mounting holes 17. The omnidirectional caster mounting hole 16 is formed on the base end side in the longitudinal direction of the loading platform 6 (the rear side when the handcart is advanced), and the unidirectional caster mounting hole 17 is formed in the longitudinal direction of the loading platform 6. Is formed on the front end side in the traveling direction (the front side when the hand cart is advanced).

  More specifically, as shown in FIG. 3, when the lower surface of the loading platform 6 is viewed, the omnidirectional caster attachment holes 16 are formed at the positions of the four corners of the substantially square section 21 of the lattice-like reinforcing rib 20. The unidirectional caster mounting holes 17 are formed at the four corner positions of the rectangular section 22 of the grid-like reinforcing rib 20.

  The omnidirectional caster 10 is a caster whose traveling direction is movable in all directions (a caster that rotates in all directions within a horizontal plane), and the unidirectional caster 11 is a caster in which the traveling direction is fixed in one direction. The omnidirectional caster 10 and the unidirectional caster 11 are each formed with a bolt through hole.

  The omnidirectional caster 10 and the unidirectional caster 11 are each attached to the lower surface of the loading platform 6 by passing bolts through the bolt through holes, through the omnidirectional caster attachment holes 16 and 17 and fastening with nuts. ing.

  As a result, the omnidirectional caster 16 is attached to the lower surface on the proximal end side in the longitudinal direction of the loading platform 6 of the hand cart 1, and the one-way caster 11 is traveled in the longitudinal direction of the loading platform 6 of the hand cart 1. It is attached to the lower surface on the tip side.

  The handle 12 has a lower end fixed to the mounting bracket 27, a bolt is passed through the bolt insertion hole of the mounting bracket 27 and the handle mounting hole 15, and is fastened with a nut. It is installed upright.

  In this embodiment, the omnidirectional caster 16 is attached to the traveling direction proximal end side in the longitudinal direction of the loading platform 6 of the two hand carts 1 and the unidirectional caster 11 is attached to the traveling direction distal end side. The connector 2 of the present invention can also be applied to the connection of two handcarts in which the unidirectional caster 11 is attached to the traveling direction proximal end side and the omnidirectional caster 16 is attached to the traveling direction distal end side.

(Connector)
As shown in FIGS. 4A and 4B, the connector 2 includes a connection plate 30 and four bolts 31 fixed to the connection plate 30. The connecting plate 30 is formed of a rigid steel plate or the like, has a substantially drum shape in plan view, and is fixed to the four corner portions 32 so that the bolts 31 stand downward. ing.

  Specifically, the bolt insertion holes 35 are provided in the four corner portions 32 of the connection plate 30, and the bolts 31 are inserted into the bolt insertion holes 35 so that the heads of the bolts 31 are formed on the upper surface of the connection plate 30. Welded and fixed.

  In addition, in the coupling tool 2 of a present Example, although it attached in the state which welded and fixed the volt | bolt 31 to the connection board 30, it is two hand-carried vehicles, without welding and fixing the volt | bolt 31 to the connection board 30. When connecting 1, the bolt 31 may be inserted into the bolt insertion hole 35 and the handle mounting hole 15 of the loading platform 2, and the coupling plate 30 and the loading platform 6 may be fixed together with a nut.

  When the four bolts 31 fixed to the connecting plate 30 abut two adjacent handcarts 1 on the side surfaces 36 on the long sides of the respective loading platforms 6, as shown in FIG. It is fixed at a position that fits the handle mounting holes 15 of the two loading platforms 6.

  More specifically, among the four bolts 31 of the connector 2, the two bolts 31 provided at the two corner portions 32 on one end side in the longitudinal direction of the connecting plate 30 are the loading platform 6 of one handcart 1. It is fixed so as to match the position of the handle attachment hole 15 formed at the end in the longitudinal direction.

  Further, two bolts 31 provided at the two corner portions 32 on the other end side in the longitudinal direction of the connecting plate 30 are handle attachment holes formed at the longitudinal end portion of the loading platform 6 of the other hand cart 1. It is fixed to fit the 15 position.

  In the present embodiment, the connecting plate 30 has a substantially drum shape in plan view as described above. However, the connecting plate 30 is not necessarily required to have such a shape, and may have a rectangular shape, for example.

  However, if it is rectangular, if the short side is shortened and narrowed, the bolt insertion hole cannot be formed with a margin in the corner part, and the plate part cannot be taken sufficiently around the bolt insertion hole, The strength of the bolted part is not sufficient.

  Further, if the short side is made long and the shape is wide, the rectangular shape of the connecting plate becomes large, which is not necessarily preferable in terms of design. If it is a substantially drum shape in plan view like the connecting plate 30 of the present embodiment, the bolt insertion hole 35 can be formed with a margin in the corner portion 32, and moreover than the case of a rectangle having a large area, It looks good and has excellent design.

(Linked hand cart)
2 (a), (b) obtained by connecting the two conventional hand carts 1 shown in FIGS. 1 (a) and 1 (b) using the connecting device 2 of the present invention having the above-described configuration. The following is a description of the coupled handcart 3 of the present invention shown in FIG.

  When two handcarts 1 are connected by the connector 2, the two handcarts 1 are arranged with their long side surfaces 36 in contact with each other as shown in FIG. 3.

  Then, the long-side side surfaces 36 of the two hand carts 1 shown in FIGS. 1A and 1B are brought into contact with each other as shown in FIGS. 37 (extending in the longitudinal direction of the loading platform 6) so that the coupling plate 30 of the coupling device 2 is orthogonal to the four bolts 31 of the coupling device 2, respectively. Insert into the handle attachment hole 15.

  In this embodiment, the handle attachment holes 15 into which the four bolts 31 are inserted are on the side where the handle 12 is not attached in the longitudinal direction of the two loading platforms 6, that is, on the front side in the traveling direction (the right side in FIG. 3). Thus, the handle attachment hole 15 is formed at a position close to the contact portion 37.

  Then, nuts are screwed onto the four bolts 31 from the lower side of the loading platform 6, and the connecting plate 30 is connected to the two hand carts 1 as shown in FIGS. 5 (a) and 5 (b). Secure to. As a result, the two handcarts 1 are connected by the connector 2 and the connected handcart 3 is assembled.

(Function)
The operation and effect of the hand cart 1 having the above-described configuration and the connected hand cart 3 connected by the connector 2 will be described.

  As described above, when two handcarts 1 are connected, the bolt 31 of the connector 2 is inserted into the handle attachment hole 15 formed in the loading platform of the two handcarts 1 and fastened with a nut. Therefore, the two handcarts 1 can be easily connected.

  By connecting two handcarts 1, the loading area of the loading platform 7 of the coupled cart 3 is the sum of the two loading areas 6 of the two carts 1, and a large article having a large area. In addition, more articles can be loaded.

  Therefore, when there is a need to transport an article with a large area, or when it is necessary to transport a large quantity of articles, there is no need to purchase or specially order a hand cart with a large loading area. .

  In the case of transporting an article loaded on the loading platform 7 using the coupled hand cart 3, if the two handles 12 provided on the two carts 1 are gripped by the left and right hands and moved. good.

  By the way, in this embodiment, as shown in FIGS. 2A and 2B, one connection on one end side of the abutting portion 37 of the side surface 36 on the long side of the two handcarts 1 is connected. It is only connected with the tool 2, and it is not connected about other parts.

  In such a manner, only by connecting with one connecting tool 2, the two hand carts 1 move the respective casters 11, so that an external force is applied to one connecting tool 2 and its attachment location, and the connecting tool 2. In addition, there is a concern that the two handcarts 1 are likely to be separated from each other.

  However, as a result of conducting a verification test on whether the inventor and the like have any inconvenience in use with respect to the connected hand cart 3, as shown in FIGS. 2 (a) and 2 (b), the two hand carts 1 If only the distal end side of the abutting portion 37 between the long side surfaces 36 is connected by the connector 2, there is no inconvenience in use as the connected hand cart 3 without connecting other portions. Was confirmed and the above concerns were eliminated.

  In particular, like the connected hand cart 1 of this embodiment, each of the two hand carts 1 has a unidirectional caster 11 attached to the longitudinal end of the loading platform 6 and a handle 12. In the configuration in which the omnidirectional caster 10 is attached to the proximal end side in the longitudinal direction, the distal ends of the two handcarts 1 travel in the same common direction determined by the unidirectional casters 11. Therefore, an external force does not act relatively on the connector 2 and its attachment location.

  On the proximal end side, the user determines the direction by operating the handle 12, and the operating force is transmitted relatively straight to the omnidirectional casters 10 of the two hand carts 1 directly below. .

  Accordingly, the omnidirectional casters 10 of the two hand carts 1 move in the predetermined common directions operated by the handles 12 respectively. In short, since each of the two hand carts 1 does not move in an arbitrary direction, the two hand carts 1 are prevented from being separated from each other.

  As described above, in the coupled handcart 3 shown in FIGS. 2A and 2B, the connection is prevented from being disconnected, but as a precaution, as shown in FIG. It is good also as a structure which fastens the handle | steering-wheels 12 of the two connected hand carts 1 with the band 41 mutually.

(Modification)
FIG. 7 shows a connected hand cart 45 according to a modification of the present embodiment. As shown in FIGS. 2 (a) and 2 (b), the connected hand cart 1 of this embodiment has a configuration in which two hand carts 1 are connected by a connector 2, but the deformation shown in FIG. An example of the connected hand cart 45 is configured by connecting three normal hand carts 1 to each other by using the connecting tool 2 between adjacent loading platforms 6 and connecting the three hand carts 1.

  Thus, if the connecting tool 2 of the present invention is used, a large number of hand carts 1 can be connected according to the area and size of the articles to be loaded, thereby providing a large loading area. A connected hand cart can be easily obtained.

  As mentioned above, although the form for implementing the coupling tool of the handcart concerning this invention and the connection handcart connected with this connector was explained based on the example, the present invention is limited to such an example. Needless to say, there are various embodiments within the scope of the technical matters described in the claims of the utility model registration.

  Since the structure of the handcart transporter according to the present invention and the connected handcart transported by the connector are as described above, they are used in factories, distribution, agriculture, passengers (stations, airports, etc.). ), Can be applied to a handcart used for various purposes such as home use.

1 Normal handcart
2 connector
3 articulated handcart
6 Cargo carrier of normal handcart
7 Cargo carrier for articulated hand trucks 10 Omni-directional casters
11 Unidirectional casters
12 Handle
15 Handle mounting hole
16 omnidirectional caster mounting hole
17 Unidirectional caster mounting hole
20 Reinforcement rib
21 Substantially square section of reinforcing ribs
22 Rectangular section of reinforcing ribs
27 Mounting bracket
30 connecting plate
31 Connector bolts
32 Corner of connecting plate
35 Bolt insertion hole of connecting plate
36 Side of the long side of a normal wheelbarrow carrier
37 Abutting part of side surface of long side of cargo bed
41 bands
45 articulated handcart

Claims (6)

A plurality of handcarts are connected to each other with a handle and a caster, and a handcart used for assembling a connected handcart with a loading platform having a total area of the loading platforms of the plurality of handcarts. A coupling tool,
The coupling device of the handcart includes a connecting plate, and a plurality of bolts that are respectively fixed to the loading platforms of the adjacent handcarts to which the connecting plate is to be connected,
The connecting plates are inserted through attachment holes formed respectively in the contacting bases in a state in which the side surfaces of the supporting bases of the adjacent carts to be connected cross each other abutting portions where they are in contact with each other. In addition, the coupling device of the handcart is characterized in that it is configured to be fixed to the loading platform of the handcart adjacent to each other by the bolt and the nut screwed to the bolt.   The connecting member for a hand cart according to claim 1, wherein the connecting plate has a substantially drum shape in a plan view, and the bolt is erected and fixed to a corner portion of the connecting plate. A plurality of handcarts are connected by a connector having a connecting plate and a bolt, and are connected handcarts having a loading platform having a total area of the loading platforms of the plurality of carts,
Each of the connected handcarts has a handle and a caster,
The side surfaces of the carts of the connected carts adjacent to each other are in contact with each other,
The connecting plate is inserted through mounting holes respectively formed in the loading platforms that are in contact with each other in a state where the side surfaces of the loading platforms of the adjacent carts are arranged so as to cross the contacting portions that are in contact with each other. And a nut connected to the bolt and fixed to the loading platform of the adjacent carts.   4. The connected hand cart according to claim 3, wherein the side surfaces of the connected carts of the adjacent carts are side surfaces on the long side of the rectangular cart in plan view. In each of the plurality of handcarts, a unidirectional caster is attached to the lower surface on the distal end side in the traveling direction of the loading platform, and an omnidirectional caster is mounted on the lower surface on the proximal end side in the traveling direction to which the handle of the loading platform is attached. Installed,
The connected hand carts according to claim 3 or 4, wherein the adjacent hand carts connected to each other are connected and fixed to each other at the front end side in the traveling direction of the loading platform.   The connected hand cart according to claim 3, 4 or 5, wherein the handles of the hand carts adjacent to each other connected to each other are fastened with a band.

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