JPH0911908A - Hand truck device - Google Patents

Abstract

PURPOSE: To simplify the constitution of a hand truck device by constituting a mechanism to receive a work from a conveyor device and transfer it on B work-carrying member as a manual device in carrying the work using a truck device. CONSTITUTION: A vertically moving device using a link member 21 of a manual elevating member 20 is provided on an upper part of a hand truck 1, an expansion type work receiving part 30 is arranged on an upper part of the manual elevating member through a table member 25, two-stage expansion arm members 33, 35 provided on the expansion type work receiving part 30 are provided and a work receiving member 37 is arranged. A manual moving means by a driving member 50 for movement to the expansion type work receiving part 30 is provided, and a work W is transferred from a conveyor device 6 to a work carrying member 10 of the device to achieve the carrying work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand truck system, and more particularly to a hand truck system capable of receiving a heavy object from a conveyor device, transferring it to a loading member provided on the car and carrying it.

[0002]

2. Description of the Related Art Conventionally, it has been common to use a hand truck to convey a work, and the hand truck has a caster for traveling on a floor and a loading member for mounting the work. It is provided. However, when the work is conveyed using the hand truck, the worker needs to lift and transfer the work at the unloading position arranged at the end of the conveyer conveyor device. Is a big problem. Therefore, in order to reduce the burden on the operator, a transfer device dedicated to the work is arranged at the unloading position, and the transfer device is configured as a device using an electric motor or compressed air. However, the use of the transfer device causes noise at the work site and has a problem of space at the transfer place, and further, when the production line is rearranged due to a change in the production form or the like. , Many problems occur. As described above, the transfer device is arranged at a position where the work is transferred to the hand truck, and the work is transferred between the hand truck and the hand truck. ,
The work of transferring the work to and from the conveyor device is also performed by an elevating means provided on a hand truck.

[0003]

However, in the case of constructing a device for transferring a work from a conveyor device using a hand truck provided with lifting means, the hand truck is installed in the transfer section of the conveyor device. It is necessary to form a portion that can be inserted, which complicates the structure of the transfer section provided in the conveyor device and the like, and also causes a problem that the space under the conveyor device cannot be effectively used. Further, it is also considered that the loading member of the hand truck is configured by a roller conveyor or the like so that the work of transferring the work from the conveyor device can be easily performed. However, using the roller conveyor or the like It also causes extra vibration to the work during the transfer work, and there is a problem that it cannot be easily applied to the work that needs to avoid vibration and the like.

As described above, in addition to the problem in transferring the work between the conveyor device and the hand truck, the transfer of the work between the work unloading position and the hand truck provided in the manufacturing apparatus is performed. There are similar problems when doing. Further, when a work is placed on a hand truck and is transported, especially when there is unevenness like the floor of a clean room, the vibration of the hand truck is directly transmitted to the work supported by the loading member, and Since it is feared that an adverse effect may be exerted, it is desired to develop a device that does not give vibration to the work placed on the carriage during transfer and during transportation.

[0005]

SUMMARY OF THE INVENTION The present invention solves the problem of transfer of workpieces when using the conventional hand truck as described above.
The work is transferred by using the telescopic load receiving part arranged on the hand truck, and the work is held by the loading member arranged on the hand truck when the hand truck is moving. It is an object of the present invention to provide a device that performs the action of.

[0006]

DISCLOSURE OF THE INVENTION The present invention is directed to a table member that moves up and down with respect to a trolley body by an elevating means, a telescopic load receiving portion disposed on the upper surface of the table member, and a telescopic arm disposed on the telescopic load receiving portion. The load receiving member is provided at the tip of the member. In the present invention,
A rod member for manually moving the telescopic load receiving portion is formed of a bendable rod member, and means for fixing and holding the rod member in correspondence with extension and contraction of the rod member is provided. Furthermore, in the present invention, a loading member for supporting the four corners of the luggage is arranged in the body of the hand truck, and a work that is transferred onto the loading member by expanding and contracting the telescopic load receiving portion is used when the hand truck is running. It is possible to provide means for supporting and placing and holding, and it is also possible to provide the above-mentioned load member with a vibration isolation mechanism.

[0007]

As described above, in the hand truck apparatus according to the present invention, the telescopic load receiving portion is arranged on the upper part of the main body of the apparatus through the manual lifting member, and the load receiving member is provided at the tip of the telescopic arm member of the telescopic load receiving portion. By providing a means to transfer the work from the conveyor device etc., it is possible to manually transfer the work between the carriage and the conveyor device, simplifying the mechanism of the hand truck. can do. Further, in the hand truck apparatus of the present invention, while performing the telescopic load receiving portion manually via the rod member, a means for fixing and holding the load receiving member of the telescopic load receiving portion with respect to the rod member at a protruding position and a position where the load receiving member is not projected. Since it is provided, it is possible to prevent the telescopic load receiving portion from moving abruptly, and it is possible to perform the cargo handling work stably. Furthermore, a loading member for supporting the work is arranged on the hand truck, and by providing a vibration isolation mechanism on the above-mentioned load member, it is possible to prevent the vibration of the hand truck while traveling from adversely affecting the work. Therefore, it is possible to exert a stable holding action for a work in which vibration is a problem.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hand truck apparatus according to the present invention will be described with reference to the illustrated example. The example shown in FIG. 1 is an explanatory view showing a state in which a work is transferred from a conveyor device to a hand truck.
2 is a plan view of the hand truck, and FIG. 3 is a front view of the hand truck viewed from the conveyor side. In the example shown in FIGS. 1 to 3, the hand cart 1 is configured as a device that travels on the floor of the work space by using the casters 3 and 3a provided on the main body 2 of the cart. Positioning with respect to the conveyor device 6 is performed using the lateral guide roller member 4 arranged at the bottom of the main body 2. The conveyor device 6 that conveys the work W is arranged at the end of the work manufacturing process or at the work transfer end of the automatic machine, and transfers the work between the work and the hand truck. Therefore, a means for temporarily stopping the operation can be provided.

In the hand truck 1, a table member 25 is provided on the upper portion of the main body 2 of the truck through a manual elevating member 20, and a telescopic load receiving portion 30 is provided for the table member 25 so that the conveyor device 6 pushes the table. A handle member 5 is provided for constituting a means for transferring a work onto the trolley 1 and allowing an operator to manually push and move the hand trolley 1. The manual lifting member 20 arranged on the trolley body 2 of the hand truck 1 is
A means for actuating the X-shaped link member 21 using a driving means (not shown) operated by hydraulic or pneumatic actuation by the lifting pedal 22 and a table member 25 vertically moved by the link member 21. To be done.
Further, in order to lower the table member 25, a lowering release lever 23 for releasing the operation of the driving device is provided, and further, the work received from the conveyor device 6 via the telescopic load receiving portion 30 on the hand truck. A loading member 10 for fixing and holding W on the hand truck is provided, and the relationship between the loading member 10 and the telescopic load receiving portion 30 is configured as shown in FIG.

As shown in FIG. 2, a telescopic load receiving portion 30 is arranged on the table member 25 which is vertically moved by the manual lifting member 20, and the telescopic load receiving portion 30 has a two-stage telescopic arm member. The intermediate frame member 33 and the tip end frame member 35 are arranged via a mechanism for interlocking movement, and are manually moved by using the movement driving member 50. In addition, the tip frame member 35 includes a load receiving portion upper plate 3
6 is arranged, the load receiving member 37 is provided on the load receiving portion upper plate 36, and the work is placed on the load receiving member 37 and moved.

When the work is transferred from the conveyor device 6 to the hand truck 1 by using the telescopic load receiving portion 30 constructed as described above, the hand truck 1 is moved to the conveyor device as shown in FIG. Position at the end of 6. After that, the distal end frame member 35 of the telescopic load receiving portion 30 is extended by using the moving driving member 50 on the table member 25 held in the lowered position, and the distal end frame member 35 is extended to the lower portion of the work W stopped on the conveyor device. The front end frame member 35 is positioned as indicated by the phantom line. Thereafter, the lifting pedal 22 is operated to lift the manual lifting member 20 until the load receiving member 37 provided on the tip end frame member 35 reaches a position higher than the position H of the work supporting surface of the conveyor device 6. As shown in the drawing, the load receiving portion upper plate 36 on which the load receiving member 37 of the tip end frame member 35 is arranged is inclined toward the side for receiving and moving the work, and is supported by the load receiving member 37. The work should be supported and transferred in a stable state. Then, the work W is moved to a position corresponding to the loading member 10 of the hand truck, and then the lowering release lever 23 is operated to perform the lowering operation with respect to the manual elevating member 20 to place the work W on the loading member 10. Place it on the table and move the cart to the desired location.

It is arranged on the trolley body 2 of the hand truck 1.
In the telescopic load receiving unit 30 for transferring the work to and from the conveyor device, as shown in FIGS.
2 stages of members 33 and 35 that expand and contract are arranged, and a moving drive member 50 is arranged to move the expandable member. An interlocking device 40 as shown in FIGS. 4 and 5 is arranged in order to interlock the two frame members 33 and 35 by using the moving drive member 50. The telescopic load receiving portion 30 of the present invention is detachably provided on the table member 25, and the telescopic load receiving portion can be replaced as a unit according to the property of the work. Then, the stroke of the tip end frame member can be arbitrarily changed by changing the shape of the load receiving member arranged at the tip end portion of the tip end frame member or corresponding to the movement distance of the work between the conveyor device and the loading member. It can be configured to be set to.

In the interlocking device 40 shown in FIG. 4, the intermediate frame member 33 has pulleys 4 at both ends in the moving direction.
1, 42 are arranged, and a belt 43 is stretched over the two pulleys. A lower clamp 44 is provided between the belt 43 and the table member 25, and an upper clamp 45 is provided between the belt 43 and the tip frame member 35.
Further, the end portion of the rod member of the moving drive member 50 is attached to the end portion of the intermediate frame member 33 via the rod connecting member. Then, by using the moving driving member 50 to push the intermediate frame member 33 and move the intermediate frame member 33 in the arrow X direction, the belt 43 moves while the lower clamp 44 is fixed to the table member. The tip end frame member 35 fixed to the upper clamp 45 projects in the direction of the arrow X at a double speed, and the tip end part with respect to the intermediate frame member 33 is the same distance as the intermediate frame member 33 projects. The frame member 35 is projected. The interlocking device 4
The movement of the tip end frame member 35 by 0 moves at the same speed even when the moving drive member 50 is moved in the direction opposite to the arrow, and retracts to the position shown in FIG. It can be pulled back up into place.

The telescopic load receiving portion 30 which is moved by the interlocking device 40 shown in FIG. 4 has a structure as shown in FIG. 5, and is a groove-type base frame in which the upper portion of the table member 25 is opened. 31 is arranged, and an intermediate frame member 33 is movably provided inside the base frame 31 via slide guide members 32 ... On both sides.
Further, inside the intermediate frame member 33, a distal end frame member 35 is movably arranged via slide guide members 34 on both sides, and a rod connecting member 46 is arranged with respect to the intermediate frame member 33. The rod member 51 of the moving drive member is connected via the. Then, an operation of sliding the intermediate frame member 33 driven by the moving driving member with respect to the base frame 31 via the interlocking device 40 arranged between the intermediate frame member 33 and the tip end frame member 35, The distal end frame member 35 can be slid with respect to the intermediate frame member 33.

In the moving driving member 50 for driving the telescopic load receiving portion 30, as shown in FIG. 4, with respect to the rod member 51 connected to the rod connecting member arranged in the intermediate frame member 33, A rod member 51a is connected via a hinge 52, and a handle member 53 is provided at the end of the rod member 51a at the tip. 2 above
The two rod members are bent via the hinges 52 and fixed to the clamp members 56 provided on the holding frame 55 as shown by imaginary lines in the figure, so that the rods do not interfere with the movement of the hand truck. Can be held as Further, when the telescopic load receiving portion 30 is moved by the moving driving member 50 to transfer the work W between the conveyor device and the loading member of the hand truck, the rod member 51 is guided by the rod guide member 57. By doing so, the operation of moving the intermediate frame member via the rod member can be performed.

In the moving driving member 50 shown in FIG. 4, in order to fix and hold the two rod members with respect to the trolley in a state in which the two rod members are bent via the hinge 52, the moving member 50 shown in FIG.
The fixed holding means as shown in FIG. In the example shown in FIG. 6, a clamp member 56 formed by bending a spring plate is arranged with respect to a holding frame 55 arranged on the upper part of the carriage, and a rod member 51a is inserted into and held by the clamp member 56. I am letting you. Further, when the telescopic load receiving portion is operated by the moving driving member 50, the rod member 51 is moved to the rod guide member 5 as shown in FIG.
You can use 7 to guide you. The rod guide member 57 guides the rod member 51 through the V-shaped groove 58, and the accommodating portion 59 is arranged at a predetermined position thereof, and the rod member is positioned at the bottom of the groove of the V-shaped groove. In this state, the frame member of the telescopic load receiving portion is moved in the axial direction so as to be moved.

The two rod members 51, 51a connected via the hinge 52 are provided with projections 54, 54a, respectively. Of the two projections, the projection 54 provided on the rod member 51 is Rotate 90 ° and store 5
In the state of being housed in 9, the tip frame member of the telescopic load receiving part is housed in the base frame. On the other hand, the state in which the protrusion 54a of the rod member 51a is accommodated in the accommodating portion corresponds to the operation of maximally projecting the tip end frame member 35, and the two protrusions provided on the rod member are respectively attached to the rod. By positioning the guide member 57 with respect to the accommodating portion, the rod member is fixedly held and the moving member arranged in the telescopic load receiving portion is prevented from moving unexpectedly.

The work transferred from the conveyor device onto the hand truck by using the telescopic load receiving section is placed on the loading member 10 arranged on the hand truck 1. As the load member 10 described above, in order to hold the work in a stable state and to prevent the work from being vibrated when the hand truck travels, a vibration damping means as shown in FIG. 8 or FIG. And the positioning means. In the example shown in FIG. 8, the loading member 10 has a protrusion 12a with respect to a block member 11 which constitutes a work receiving surface on the upper surface.
A member for urging the supporting member 12 provided with a spring 13 is provided. Then, the work is blocked by the block member 11
When placed on top, the protrusion of the support member is lowered by the work, but the spring 13 is not completely pressed, but the work is supported while being held on the protrusion 12a.

Further, in the example shown in FIG. 9, the work receiving member 16 is arranged on the soft rubber block 17, and the work is placed on the work receiving member 16 so that the rubber block 17 elastically holds the load. The member 15 is configured. Conditions such as elasticity and thickness of the rubber block 17 can be arbitrarily set according to conditions such as the weight of a work to be handled, and vibrations when the hand truck is run may adversely affect the work. It is possible to hold it so that it is not given.
Further, the shape of the upper part of the work receiving member can be arbitrarily configured in accordance with the shape of the work, and in addition to forming a means for accurately positioning and holding the four corners of the work, A mechanism for placing and holding the work may be configured.

In addition to constituting the means for transferring the work between the conveyor device and the hand truck using the telescopic load receiving portion as described above, in the present invention, it is shown in each of FIGS. It is also possible to use such a work transfer device. In the transfer device 60 shown in FIG. 10, the fork member 6
1 is configured to slide through the link member 65, and the link member 65 integrally formed with the handle 66 via the support shaft 67 is provided for the link 68 provided on the upper frame of the carriage main body. To support. The fork member 61 is attached to the tip of the link member 65 via a pin 64.
Bracket 62 is connected, and the pin 64 is connected through a long hole 63 provided in the bracket.

In the transfer device 60, the handle 66 is swung counterclockwise via the support shaft 67, so that the fork member 61 is moved as shown by the phantom line in the figure.
So that it can be advanced to the position where the work is received from the conveyor device. In the above embodiment, the moving distance L of the fork member 61 can be arbitrarily set by appropriately setting the swing range of the link, and the guide member of the apparatus body can be arbitrarily configured. It is possible to set. Further, the drive mechanism by the link to the fork member, the slide rail for guiding the fork member, and the like can be mounted on the hand truck instead of the telescopic load receiving portion 30 of FIG. 1, and drive the fork member. The link mechanism for doing so may be a combination of links having a structure different from that shown in the above embodiment.

In the transfer device 70 shown in FIG. 11, the fork member 71 is slid by using a belt member and the belt member is driven by a gear device. The fork member 71 is connected to the belt member 73 via the clamp 72, and the belt member is stretched around the pulley 78 so that the shaft 77 of the pulley is rotated via the gear device 76. Then, by rotating the handle 75 provided on one gear of the gear device, the pulley 78 is rotated, and the fork member is moved forward and backward by the belt member 73, and the work is transferred between the conveyor device and the loading member of the hand truck. Be prepared to carry out the work listed. In the transfer device shown in FIG. 11, an endless belt such as a belt member or a chain for guiding the fork member is
The pulley of the drive unit and a pulley (not shown) arranged at the tip end are bridged, but the position where the fork member is projected to the maximum is set by the pulley at the tip end. Then, the transfer device 70 also uses the belt member,
As in the case of the device shown in FIG. 10, it can be used by mounting it on a hand truck instead of the telescopic load receiving portion.

[0023]

Since the hand truck apparatus of the present invention is configured as described above, the telescopic load receiving section is disposed on the upper portion of the main body of the hand truck by way of the manual lifting member, and the telescopic load receiving section is arranged. Since a load receiving member is provided at the tip of the telescopic arm member of FIG. 1 and means for transferring the work from the conveyor device or the like is provided, it is possible to manually transfer the work between the carriage and the conveyor device. Therefore, the mechanism of the hand truck can be simplified. Further, in the hand truck apparatus of the present invention, while performing the telescopic load receiving portion manually via the rod member, a means for fixing and holding the load receiving member of the telescopic load receiving portion with respect to the rod member at a protruding position and a position where the load receiving member is not projected. Since it is provided, it is possible to prevent the telescopic load receiving portion from moving abruptly, and it is possible to perform the cargo handling work stably. Further, the hand truck is provided with a loading member for supporting the work, and by providing the above-mentioned loading member with a vibration isolation mechanism,
It is possible to prevent the vibration of the hand truck from adversely affecting the work, and to exert a stable holding action even on the work where vibration is a problem, and to support the four corners of the load being transported, so it is stable. It is possible to carry different transports.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a relationship between a configuration of a hand truck apparatus of the present invention and a conveyor apparatus.

FIG. 2 is a plan view of a hand truck of the device of the present invention.

FIG. 3 is a front view of the hand truck.

FIG. 4 is an explanatory diagram showing a configuration of an extendable load receiving portion provided on the hand truck.

FIG. 5 is an explanatory diagram showing a configuration of an extendable load receiving portion.

FIG. 6 is an explanatory view of a state in which the rod member is held in an unused state.

FIG. 7 is an explanatory diagram of a guide member of a rod member.

FIG. 8 is an explanatory diagram showing a configuration of a loading member of the present invention.

FIG. 9 is an explanatory diagram showing another configuration of the loading member.

FIG. 10 is an explanatory view of another embodiment of the transfer device provided in the hand truck.

FIG. 11 is an explanatory view of another embodiment of the transfer device provided on the hand truck.

[Explanation of symbols]

 1 Hand cart 2 Car body 6 Conveyor device 10, 15 Loading member 20 Manual elevating member 21 Link member 25 Table member 30 Telescopic load receiving part 33 Intermediate frame member 35 Tip frame member 37 Load receiving member 40 Interlocking device 43 Belt 50 Drive for movement Member 53 Handle member 55 Holding frame 56 Clamp member 57 Rod guide member 60, 70 Transfer device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideaki Haruna, 4-17 96, Tsurumi, Tsurumi-ku, Osaka-shi, Osaka Prefecture (72) Inside Tsubakimoto Chain Co., Ltd. (72) Yoshiaki Nakamura, 4-chome, Tsurumi-ku, Osaka-shi, Osaka No. 96 in Tsubakimoto Chain Co., Ltd.

Claims (4)

[Claims] 1. A table member which moves up and down with respect to a trolley body by an elevating means, a telescopic load receiving portion arranged on an upper surface of the table member, and a load receiving portion provided at a tip end portion of a telescopic arm member arranged in the telescopic load receiving portion. A hand truck device composed of a member. 2. A rod member for manually moving the telescopic load receiving portion is constituted by a bendable rod member, and means for fixing and holding the rod member is provided in correspondence with expansion and contraction of the rod member. The hand truck apparatus according to claim 1. 3. A loading member for supporting the four corners of a load is arranged on the main body of the hand truck, and a work which is transferred onto the loading member by expanding and contracting the telescopic load receiving portion is supported and loaded during traveling of the hand truck. The hand truck apparatus according to claim 1, wherein the hand truck apparatus is placed and held. 4. The hand truck apparatus according to claim 1, wherein the load member is provided with a vibration-proof mechanism.