JP2015009600A - Hand-pushed cart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hand-pushed cart which reduces force for holding the hand-pushed cart in a lifted state.SOLUTION: A cart 100 for transporting a mounted load L comprises: a base part 10; one wheel 30 disposed on the base part 10 rotatably around one axial line; and a mounting part 50 on which the load L is mounted and which is slidable to the base part 10. The cart 100 further comprises a handle part 70 disposed on one side of a travel direction and to which a worker can operate by hand-push operation, and the mounting part 50 is slidable to the base part 10 in the travel direction.

Description

  The present invention relates to a technology of a handcart for transporting a loaded load.

  Conventionally, the technique of the handcart which conveys the loaded load is well-known. For example, as described in Patent Document 1.

  The hand cart described in Patent Document 1 includes a wheel provided at a front lower portion of a cargo bed (loading portion) and a handle (handle portion) provided at a rear portion of the cargo bed. Further, the transport vehicle includes a motor that drives the wheel, and a grip that is provided at an end of the handle and controls the motor.

  In such a configuration, the operator can carry the load loaded on the loading platform of the hand truck by grabbing the handle and lifting the rear part of the hand cart to push the handle forward. At this time, the operator can operate the grip to control the motor and rotate the wheels at an arbitrary speed. Thereby, it is possible to reduce the force (force to push the hand cart) necessary for transporting with the hand cart.

  However, normally, in the hand cart (transport vehicle 900) as described in Patent Document 1, as shown in FIG. 17, the center of gravity of the loading portion 950 on which the load L is loaded (see the downward arrow in the figure). ) Is located behind the wheel 930 (on the handle portion 970 side). For this reason, the operator must always hold the handle portion 970 lifted upward when the load L is transported by the transport vehicle 900. That is, by driving the wheel 930 with a motor, the force for pushing the transport vehicle 900 in the traveling direction can be reduced, but the force for holding the rear portion of the transport vehicle 900 in a lifted state (in the drawing) (See the upward arrow).

Utility Model Registration No. 3155212

  This invention is made | formed in view of the above situations, The subject which it is going to solve is providing the handcart which can reduce the force for hold | maintaining in the lifted state.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in claim 1, it is a hand-carried vehicle for transporting a loaded load, and includes a base portion and at least one wheel that is rotatably provided on the base portion around one axis line, The load can be loaded, and includes a loading portion that is slidable with respect to the base portion.

  According to a second aspect of the present invention, the handle portion is provided on one side in the traveling direction and can be manually pushed by the operator, and the stacking portion is slidable in the traveling direction with respect to the base portion. Is.

  According to a third aspect of the present invention, the handle portion is fixed to the stacking portion.

  According to a fourth aspect of the present invention, the stacking portion is slidable with respect to the base portion by its own weight.

  According to a fifth aspect of the present invention, an electric actuator is provided for sliding the stacking portion with respect to the base portion.

  In Claim 6, between the said base part and the said stacking part, the rail which guides a roller and the said roller is provided.

  As effects of the present invention, the following effects can be obtained.

In claim 1, the loading portion slides relative to the base portion, so that the position of the center of gravity of the loading portion with respect to the position of the wheel changes, and the force for holding the hand cart is raised is reduced. be able to.
That is, if the gravity center position of the loading portion is close to the wheel position, the force required for the operator to hold the hand cart can be reduced.

  According to the second aspect of the present invention, it is possible to reduce the force required for the operator who operates the handle portion to hold the hand cart.

  In claim 3, even if the loading portion slides with respect to the base portion, the distance between the handle portion operated by the operator and the center of gravity of the loading portion does not change. The operation feeling during operation can be kept constant, and deterioration in operability can be prevented.

  According to the fourth aspect of the present invention, the loading section can be slid by the operator lifting and tilting a part of the hand cart. That is, the stacking unit can be slid without performing a complicated operation.

  In Claim 5, even if an operator does not apply force, it becomes possible to slide a loading part. In addition, the use of the electric actuator makes it easy to control the sliding position of the stacking unit.

  According to the sixth aspect, the stacking portion can be smoothly slid relative to the base portion.

The perspective view which showed the whole structure of the transport vehicle which concerns on one Embodiment of this invention. Similarly, an exploded perspective view. Similarly, a plan view. Similarly, side view. The top view which showed the base part. Similarly, bottom view. The bottom view which showed the loading part. (A) The X partial enlarged view in FIG. (B) AA sectional drawing. (A) The Y partial enlarged view in FIG. (B) BB sectional drawing. (A) The Z partial enlarged view in FIG. (B) CC sectional drawing. The side view which showed the transport vehicle of the loading attitude | position. The side view which showed a mode that the load was loaded on the conveyance vehicle of a loading attitude | position. The side view which showed the conveyance vehicle of a conveyance attitude | position. The side view which showed the conveyance vehicle of the state which the loading part slid to the conveyance position. The side view which showed the transport vehicle which concerns on 2nd embodiment. The side view which showed the transport vehicle which concerns on 3rd embodiment. The side view which showed an example of the conventional conveyance vehicle.

  Below, based on the arrow in a figure, the front-back direction, the left-right direction, and an up-down direction are each prescribed | regulated and demonstrated. In addition, the transport vehicle 100 described below travels in the front-rear direction.

  First, the structure of the transport vehicle 100 which is one embodiment (first embodiment) of the handcart according to the present invention will be described with reference to FIGS. 1 to 10.

  The transport vehicle 100 shown in FIG. 1 to FIG. 4 is capable of transporting a loaded load when the operator pushes it by hand (manually pushes it). The transport vehicle 100 mainly includes a base portion 10, wheels 30, a loading portion 50, and a handle portion 70.

  The base 10 shown in FIG. 2 and FIGS. 4 to 6 is a main structure of the transport vehicle 100 and constitutes the lower portion of the transport vehicle 100. The base unit 10 mainly includes a base frame 11, a stand 13, a wheel bracket 15, a base roller 17, a first base rail 19, a second base rail 21, and a stopper 23.

  In addition, the structure of the base part 10 is left-right symmetric. Therefore, in the following, among members constituting the base unit 10, members other than the base frame 11 and the wheel bracket 15 will be described only for those provided on the left side of the base unit 10 and provided on the right side. Description of is omitted.

  The base frame 11 is configured by combining cylindrical members (square pipes) having a rectangular cross section. Specifically, the base frame 11 is formed by combining four square pipes to form a rectangular outer frame in plan view, and the outer frame is a plurality of square pipes oriented in the front-rear direction and the left-right direction. It is formed by being reinforced.

  The stand 13 is a part that comes into contact with the ground when the operator releases his hand from the transport vehicle 100. The stand 13 is formed by bending a cylindrical member (round pipe) having a circular cross section into a substantially U shape in a side view. The stand 13 extends downward from the left rear end of the base frame 11.

  The wheel bracket 15 is for supporting a wheel 30 described later. The wheel bracket 15 is formed by bending a round pipe into a substantially U shape when viewed from the side. A pair of left and right wheel brackets 15 are provided, and extend downward at a position slightly in front of the center of the base frame 11 in plan view.

  The base roller 17 is for smoothly sliding the base portion 10 and a stacking portion 50 described later. The base roller 17 is provided at the left front end portion of the base frame 11 in a state where two base rollers 17 are arranged in the front-rear direction. The base roller 17 is supported inside the base frame 11 (square pipe) so as to be rotatable about an axis directed in the left-right direction. Moreover, the base roller 17 is arrange | positioned so that the one part may protrude upwards from the upper surface of the base frame 11 (refer FIG. 8).

  The first base rail 19 guides a roller (a stacking roller 57 described later). The first base rail 19 is arranged with its longitudinal direction directed in the front-rear direction, and a linear groove directed in the front-rear direction is formed on the upper surface thereof. The first base rail 19 is fixed to the left rear end portion of the upper surface of the base frame 11.

  The second base rail 21 guides a roller (a connecting roller 63 described later). The second base rail 21 is arranged with its longitudinal direction facing the front-rear direction, and a linear groove directed in the front-rear direction is formed on the lower surface thereof. Two second base rails 21 are fixed to the left end portion of the lower surface of the base frame 11 side by side.

  The stopper 23 is for stopping sliding between the base unit 10 and a loading unit 50 described later at a predetermined position. The stopper 23 is a substantially rectangular plate member. The stopper 23 is detachably fixed to the left side surface of the base frame 11 using a fastener such as a bolt with the plate surface directed in the left-right direction. A plurality of holes for inserting fasteners such as bolts are formed on the left side surface of the base frame 11 in the front-rear direction so that the position of the stopper 23 in the front-rear direction can be arbitrarily changed. In the present embodiment, the stopper 23 is fixed to an intermediate portion between the stand 13 and the wheel bracket 15 in a side view.

  The wheel 30 shown in FIG. 1 to FIG. 6 is supported so as to be rotatable around an axis disposed between a pair of left and right wheel brackets 15 with the longitudinal direction thereof set to the left and right direction.

  The loading unit 50 shown in FIGS. 2 to 4 and FIG. 7 constitutes the upper part of the transport vehicle 100 and can load a load. The stacking unit 50 mainly includes a stacking frame 51, a front frame 53, a rear frame 55, a stacking roller 57, a stacking rail 59, a connecting tool 61, and a connecting roller 63.

  Note that the configuration of the stacking unit 50 is symmetrical. Therefore, in the following, among the members constituting the stacking unit 50, members other than the stacking frame 51, the front frame 53, and the rear frame 55 will be described only for those provided on the left side of the stacking unit 50, and provided on the right side. The description of what is to be omitted.

  The loading frame 51 is configured by combining square pipes and plate materials. Specifically, the stacking frame 51 is formed by combining four square pipes to form a rectangular outer frame in plan view, and the two rectangular pipes with the outer frame oriented in the front-rear direction and the left-right direction. It is formed by being reinforced with a single plate material directed.

  The front frame 53 is formed by bending a square pipe into a substantially U shape when viewed from the front. The front frame 53 extends upward from the left and right center of the front end portion of the stacking frame 51. In this way, the front frame 53 can prevent the load placed on the loading frame 51 from falling forward.

  The rear frame 55 is formed by bending a square pipe into a substantially U shape when viewed from the front. The rear frame 55 extends upward from the left and right center of the rear end portion of the stacking frame 51. In this way, the rear frame 55 can prevent the load placed on the loading frame 51 from falling backward.

  The stacking roller 57 is for smoothly sliding the stacking unit 50 and the base unit 10. The stacking roller 57 is provided at the left rear end portion of the stacking frame 51 in a state in which two stacking rollers 57 are arranged in the front-rear direction. The stacking roller 57 is supported inside the stacking frame 51 (square pipe) so as to be rotatable about an axis directed in the left-right direction. Further, the stacking roller 57 is arranged so that a part thereof protrudes downward from the lower surface of the stacking frame 51 (see FIG. 9).

  The stacking rail 59 guides the base roller 17. The stacking rail 59 is arranged with its longitudinal direction directed in the front-rear direction, and a linear groove directed in the front-rear direction is formed on the lower surface thereof. The loading rail 59 is fixed to the left front end of the lower surface of the loading frame 51.

  The connector 61 is for attaching the stacking unit 50 to the base unit 10. The connector 61 is formed by bending a rectangular plate-like member into an L shape when viewed from the front. Specifically, the connector 61 is formed by bending the lower end portion of a rectangular plate-shaped member to the inside (right side) of the transport vehicle 100 (see FIG. 10).

  When the connector 61 is attached to the loading unit 50 (loading frame 51), the loading frame 51 (loading unit 50) is first placed on the base frame 11 (base unit 10). In this state, the upper end portion of the coupler 61 is fixed to the left side surface of the stacking frame 51. As a result, the lower end portion (the portion bent inward) of the coupler 61 is positioned below the base frame 11. One connecting tool 61 is provided at each position overlapping the second base rail 21 of the base 10 in the front-rear direction. At this time, the rear connector 61 is positioned between the stand 13 of the base 10 and the stopper 23 in the front-rear direction.

  The connection roller 63 is for smoothly sliding the stacking unit 50 and the base unit 10. One connecting roller 63 is provided in each connecting tool 61. The connection roller 63 is supported by a portion bent inside the connection tool 61 so as to be rotatable about an axis directed in the left-right direction. Further, the connecting roller 63 is arranged so that a part of the connecting roller 63 protrudes upward from a portion bent inside the connecting tool 61 (see FIG. 10).

  The handle portion 70 is for an operator to perform an operation of holding and lifting or pushing with a hand. The handle part 70 is formed by appropriately bending a round pipe. A pair of left and right handle portions 70 are provided. The front end portion of the handle portion 70 is fixed to the left and right rear end portions of the stacking frame 51, respectively. A rear end portion of the handle portion 70 extends to the rear of the stacking frame 51.

  In the transport vehicle 100 configured as described above, the base roller 17 of the base unit 10 and the stacking rail 59 of the stacking unit 50 face each other as shown in FIG. At this time, the base roller 17 rolls along a groove of the loading rail 59 provided in the front-rear direction.

  Similarly, as illustrated in FIG. 9, the stacking roller 57 rolls along a groove of the first base rail 19 provided in the front-rear direction. Moreover, as shown in FIG. 10, the connection roller 63 rolls along the groove | channel of the 2nd base rail 21 provided in the front-back direction.

  As described above, the stacking unit 50 can slide in the front-rear direction with respect to the base unit 10 by the plurality of rollers and rails.

  Below, the mode at the time of conveying the load L using the transport vehicle 100 comprised as mentioned above is demonstrated using FIGS. 11-14.

  As shown in FIG. 11, when loading the load L on the transport vehicle 100, the worker releases his hand from the handle portion 70. In this state, the transport vehicle 100 is supported by the wheels 30 and the pair of left and right stands 13. At this time, the transport vehicle 100 is in an inclined posture (hereinafter simply referred to as “loading posture”) such that the base frame 11 and the loading frame 51 are lowered rearward.

  In a state where the transport vehicle 100 is in the loading posture, the loading unit 50 slides backward with respect to the base unit 10 by its own weight. At this time, the connecting tool 61 provided at the rear is in contact with the stand 13, whereby the backward sliding of the stacking unit 50 is restricted at a predetermined position (hereinafter simply referred to as “loading position”).

  When the stacking unit 50 is in the loading position, the center of gravity of the stacking unit 50 (see the black arrow in the figure) is positioned between the wheel 30 and the stand 13 in the front-rear direction. That is, since the center of gravity of the loading portion 50 is located between the wheel 30 supporting the transport vehicle 100 and the stand 13, the transport vehicle 100 can be stably supported, and the load L can be loaded. Work can be done easily.

  As shown in FIG. 12, even when the load L is loaded (loaded) on the loading unit 50, the center of gravity of the loading unit 50 including the load L is located between the wheel 30 and the stand 13 in the front-rear direction. Will do. That is, even when the load L is loaded, the transport vehicle 100 can be stably supported.

  In the present embodiment, three box-shaped (cuboid) loads L are loaded on the loading section 50, but the number and shape of the loads L are not limited.

  Next, as shown in FIG. 13, the operator grasps the handle portion 70 and lifts the rear portion of the transport vehicle 100 upward. More specifically, the operator handles the handle so that the base frame 11 and the loading frame 51 of the transport vehicle 100 are inclined so as to be lowered forward (hereinafter simply referred to as “transport position”). Lift part 70.

  In the state where the transport vehicle 100 is in the transport posture, the loading unit 50 slides forward with respect to the base unit 10 by its own weight (and the weight of the load L) as shown in FIG. At this time, the connecting tool 61 provided on the rear side comes into contact with the stopper 23, whereby the forward sliding of the stacking unit 50 is restricted at a predetermined position (hereinafter simply referred to as “transport position”).

  When the stacking unit 50 is in the transport position, the center of gravity of the stacking unit 50 including the load L is positioned in the vicinity of the wheel 30 in the front-rear direction. In this state, the weight of the stacking unit 50 is less likely to be applied to the handle unit 70 than when the stacking unit 50 is in the loading position (see FIG. 12). The force required for holding) is reduced.

  With the loading unit 50 moved to the transport position, the operator can move the transport vehicle 100 forward by pushing the handle unit 70 forward (manually pressing). At this time, since the force for holding the handle portion 70 in a lifted state is reduced, the operator can easily carry the load L by the carriage 100 with a light force.

As described above, the transport vehicle 100 according to the present embodiment is
It is a transport vehicle 100 (handcart transporter) that transports the loaded load L,
A base 10;
One wheel 30 provided on the base 10 so as to be rotatable about one axis,
A loading unit 50 that can load the load L and is slidable with respect to the base unit 10;
It comprises.

With this configuration, the loading unit 50 slides with respect to the base unit 10, so that the position of the center of gravity of the loading unit 50 with respect to the position of the wheel 30 changes, and the transport vehicle 100 is held in a lifted state. Therefore, the power for reducing can be reduced.
That is, if the gravity center position of the loading unit 50 is close to the position of the wheel 30, the force required for the operator to hold the transport vehicle 100 in a lifted state can be reduced.

In addition, the transport vehicle 100 is
Provided on one side of the traveling direction, and provided with a handle 70 that can be manually pushed by the operator,
The loading unit 50
The base part 10 is slidable in the advancing direction.

  By comprising in this way, the force for the operator who operates the handle | steering-wheel part 70 to hold | maintain the transport vehicle 100 in the raised state can be reduced.

  The handle portion 70 is fixed to the stacking portion 50.

  With this configuration, even if the stacking unit 50 slides with respect to the base unit 10, the distance between the handle unit 70 operated by the operator and the center of gravity of the stacking unit 50 does not change. The feeling of operation when the person operates the transport vehicle 100 can be kept constant, and deterioration of operability can be prevented.

  The loading unit 50 is slidable with respect to the base unit 10 by its own weight.

  By comprising in this way, the loading part 50 can be slid by the operator lifting and tilting a part of the transport vehicle 100. That is, the stacking unit 50 can be slid without performing a complicated operation.

  A roller and a rail for guiding the roller are provided between the base unit 10 and the stacking unit 50.

  With this configuration, the stacking unit 50 can be slid smoothly with respect to the base unit 10.

The loading unit 50 is
A loading position where the center of gravity of the loading section 50 is located between the wheel 30 and the handle section 70 in the traveling direction;
A transport position in which the position of the center of gravity is closer to the wheel 30 than the loading position in the traveling direction;
It can slide between.

  With this configuration, when loading the load L onto the transport vehicle 100, the posture of the transport vehicle 100 can be stabilized by sliding the loading portion 50 to the loading position, and the transport vehicle 100 can be When carrying the load L by pushing, the carrying work by the carrying vehicle 100 can be easily performed with a light force by sliding the loading unit 50 to the carrying position.

The base 10 is
The sliding position of the stacking unit 50 is regulated, and a stopper 23 that can change the mounting position is provided.

  By comprising in this way, the sliding position of the loading part 50 can be adjusted to an operator's arbitrary positions. Thereby, the position of the center of gravity of the loading unit 50 can be adjusted according to the amount of the load L and the preference of the operator.

  The specific configuration of the hand cart according to the present invention is not limited to the transport vehicle 100 according to the present embodiment, and the configuration of each part can be arbitrarily changed.

  In the present embodiment, the transport vehicle 100 includes one wheel 30. However, the present invention is not limited to this, and may be configured to include two or more wheels on the same axis. Is possible.

  In the present embodiment, the handle portion 70 is fixed to the stacking portion 50. However, the present invention is not limited to this, and the handle portion 70 may be fixed to the base portion 10. .

  In the present embodiment, the base unit 10 and the stacking unit 50 are each configured to include a roller and a rail, but the present invention is not limited to this. For example, the base unit 10 may be provided with only rollers, and the stacking unit 50 may be provided with only rails, and vice versa.

  Moreover, in this embodiment, it was set as the structure which the base part 10 and the loading part 50 can slide using a roller and a rail, However, This invention is not restricted to this, The base part 10 and a loading part If it can slide with 50, a roller etc. may not be used.

  In this embodiment, the operator moves (advances) the transport vehicle 100 forward by pushing the handle portion 70 forward, but the transport vehicle moves by pulling the handle portion 70 backward. You may move (progress) 100 back.

  In the present embodiment, the loading position and the transport position of the stacking unit 50 are positioned by the connection tool 61 coming into contact with the stand 13 and the stopper 23. However, the present invention is not limited to this. Further, the loading position and the transport position may be positioned with other members. For example, a brake mechanism that brakes the sliding of the stacking unit 50 may be provided to stop the sliding of the stacking unit 50 at an arbitrary position.

  Below, the transport vehicle 200 which is 2nd embodiment of the hand cart according to this invention and the transport vehicle 300 which is 3rd embodiment are demonstrated using FIG.15 and FIG.16.

  In FIGS. 15 and 16, the structures of the transport vehicle 200 and the transport vehicle 300 are simplified for the sake of simplicity. Specifically, the base unit 10 and the stacking unit 50 are configured to be slidable by rollers 25 respectively provided before and after the base unit 10 (before and after the wheel 30 is sandwiched). Further, the shapes of the base unit 10 and the stacking unit 50 are shown in a simplified manner.

  First, the transport vehicle 200 according to the second embodiment will be described with reference to FIG. The difference between the transport vehicle 200 and the transport vehicle 100 according to the first embodiment is that a motor 81, a control device 83, and a load sensor 201 are provided. Therefore, below, this difference is mainly demonstrated, the same code | symbol is attached | subjected about the structural member which is common in the transport vehicle 100 which concerns on 1st embodiment, and description is abbreviate | omitted.

  The motor 81 is an embodiment of the electric actuator according to the present invention, and is a drive source for driving the roller 25. The motor 81 is provided at the lower front end of the base unit 10. The motor 81 is interlocked with the roller 25 provided in the front part of the base part 10 via a power transmission mechanism such as a gear and a shaft (not shown). When the motor 81 is rotated in an arbitrary direction, the roller 25 can be rotated in an arbitrary direction. Thus, by arbitrarily rotating the roller 25 by the power of the motor 81, the stacking unit 50 can be arbitrarily slid with respect to the base unit 10.

  The load sensor 201 detects a load applied to the roller 25. The load sensors 201 are respectively provided on the rollers 25 provided before and after the base unit 10.

  The control device 83 is for controlling the operation of the motor 81. The control device 83 includes a storage unit, an arithmetic processing unit, and the like. The control device 83 stores a program for controlling the operation of the motor 81 and various data. The control device 83 is provided below the base unit 10.

The control device 83 is connected to the load sensor 201 and can receive a signal related to detection by the load sensor 201.
The control device 83 is connected to the motor 81 and can control the operation (rotation direction and rotation speed) of the motor 81.

  In the transport vehicle 200 configured as described above, the control device 83 receives a signal related to the load detected by the load sensors 201 provided respectively before and after the base unit 10. The control device 83 controls the operation of the motor 81 based on the load detected by the front and rear load sensors 201.

  For example, the control device 83 calculates the position of the center of gravity of the loading unit 50 from the loads detected by the front and rear load sensors 201, and operates the motor 81 so that the position of the center of gravity is substantially equal to the position of the wheel 30 in the front-rear direction. Is controlled to slide the loading unit 50. As a result, the force required for the operator to hold the handle 70 in a lifted state can be reduced.

  In addition, the control device 83 can also control the operation of the motor 81 so that the loads detected by the front and rear load sensors 201 are substantially equal. When the distance between the front and rear rollers 25 and the wheels 30 in the front-rear direction is substantially equal, such control can reduce the force required for the operator to hold the handle portion 70 in a lifted state.

  Next, the transport vehicle 300 according to the third embodiment will be described with reference to FIG. The difference between the transport vehicle 300 and the transport vehicle 200 according to the second embodiment is that a strain sensor 301 is provided instead of the load sensor 201. Therefore, below, this difference is mainly demonstrated, and about the structural member which is common in the transport vehicle 200 which concerns on 2nd embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The strain sensor 301 detects the strain of the handle 70. The strain sensor 301 is provided on the handle 70.

  The control device 83 is connected to the strain sensor 301 and can receive a signal related to detection by the strain sensor 301.

  In the transport vehicle 300 configured as described above, the control device 83 receives a signal related to the strain of the handle portion 70 detected by the strain sensor 301. The control device 83 controls the operation of the motor 81 based on the strain of the handle 70 detected by the strain sensor 301.

  Specifically, the control device 83 controls the operation of the motor 81 so as to slide the stacking unit 50 so that the strain of the handle unit 70 detected by the strain sensor 301 becomes 0 (or a value close to 0). Move. The strain of the handle portion 70 is proportional to the force required for the operator to hold the handle portion 70 in a lifted state. For this reason, by sliding the stacking portion 50 so that the strain of the handle portion 70 is reduced, it is possible to reduce the force required for the operator to hold the handle portion 70 in a lifted state.

As described above, the transport vehicle 200 and the transport vehicle 300 are
A motor 81 (electric actuator) that slides the loading unit 50 with respect to the base unit 10 is provided.

  With this configuration, the stacking unit 50 can be slid without an operator applying force. Further, by using the motor 81, the sliding position of the stacking unit 50 can be easily controlled.

  In the second embodiment and the third embodiment, the motor 81 is illustrated as an embodiment of the electric actuator, but the present invention is not limited to this, and various electric actuators (for example, electric cylinders, etc.) It is also possible to use.

  In the second embodiment and the third embodiment, the load sensor 201 or the strain sensor 301 is used. However, the present invention is not limited to this, and the position of the center of gravity of the stacking unit 50 and the handle unit 70 are determined. Other sensors can be used as long as it is possible to detect a force necessary to hold the lifted state.

  In the second embodiment and the third embodiment, the operation of the motor 81 is controlled based on the detection by the sensor. However, the present invention is not limited to this, and is provided in the handle portion 70, for example. It is also possible to control the operation of the motor 81 based on the operation of the operation means (switch or the like). As a result, the operator can freely slide the stacking unit 50.

  In the second embodiment and the third embodiment, the loading unit 50 is slid by the electric actuator. However, the present invention is not limited to this, and other actuators (such as a hydraulic actuator or a pneumatic actuator). ) Can also be used.

10 base 17 base roller (roller)
19 First base rail (rail)
21 Second base rail (rail)
30 wheels 50 stacking unit 57 stacking roller (roller)
59 Loading rail
63 Linking roller (roller)
70 Handle part 81 Motor (electric actuator)
100 transporter (handcart)

Claims (6)

A hand cart that transports loaded cargo,
A base,
At least one wheel provided rotatably on the base portion around one axis;
A loading portion that is capable of loading the load and is slidable with respect to the base portion;
A hand cart equipped with Provided on one side of the direction of travel, with a handle that can be manually pushed by the operator,
The loading section is
Slidable in the direction of travel relative to the base portion,
The hand cart according to claim 1. The handle portion is fixed to the loading portion;
The hand cart according to claim 2. The loading unit is slidable with respect to the base unit by its own weight.
The hand cart according to any one of claims 1 to 3. An electric actuator for sliding the stacking portion with respect to the base portion;
The hand cart according to any one of claims 1 to 4. Between the base part and the stacking part, a roller and a rail for guiding the roller are provided,
The hand cart according to any one of claims 1 to 5.

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