JP6488422B1 - Lift device - Google Patents

Abstract

Provided is a lift device that can be easily loaded into a vehicle and can reduce a loading space in a cargo compartment.
A traveling base having a traveling rear wheel and a traveling front wheel, a fork-shaped loading platform on which luggage can be placed, and a mast that supports the fork-shaped loading platform so as to be movable up and down. And a mast portion 3 mounted on the base portion 2, and the base portion 2 and the mast portion 3 are configured to be separable, and one of the base portion 2 and the mast portion 3 is engaged with the engagement tool. 42, the engaged tool 43 is provided on the other of the base part 2 and the mast part 3, and the engaging tool 42 is engaged with the engaged tool 43 in a state where the mast part 3 is placed on the base part 2. The mast portion 3 is fixed to the base portion 2 by engaging with the base portion 2.
[Selection] Figure 7

Description

  The present invention relates to a lift device that can lift and lower a load.

  Conventionally, as shown in Patent Document 1, a base unit configured to be able to travel with traveling wheels, a mast standing on the base unit, and a load supported by the mast so as to be movable up and down 2. Description of the Related Art A lift device such as a hand lift provided with a mast portion having a proper cargo bed is known.

Such a lift device may be used when loading a load into a vehicle. In this case, the loading platform on which the load is placed is raised and the lift device is moved to a position close to the vehicle, and then the loading platform is entered into the loading chamber of the vehicle to load the loading on the vehicle.
The lift device that has completed loading of the cargo into the vehicle may be loaded into the cargo compartment of the vehicle in order to be used when loading / unloading the cargo at the cargo destination.

JP 2007-302409 A

As described above, when the lift device is loaded into the cargo compartment of the vehicle, it may be difficult for one operator to load because the weight of the lift device is large. In particular, when the worker is an elderly person or a woman, it is difficult to load the lift device into the vehicle.
Further, since the lift device has a base portion extending in the front-rear direction and a mast portion extending in the vertical direction, the lift device occupies a large space in the cargo compartment when the vehicle is loaded into the cargo compartment. As a result, the efficiency of transporting luggage by the vehicle has deteriorated.

  Accordingly, the present invention provides a lift device that can be easily loaded into a vehicle and can reduce the loading space in the cargo compartment.

The lift device that solves the above problems has the following characteristics.
That is, the lift device of the present invention includes a base portion that has traveling wheels and is capable of traveling, a cargo bed on which a load can be placed, and a mast that supports the cargo bed so as to be movable up and down. A mast portion mounted on the mast portion, and the base portion and the mast portion are configured to be separable, an auxiliary wheel is attached to the mast portion, and the base portion extends in the front-rear direction. A pair of left and right leg frames to which traveling wheels are attached; a connection frame that connects the pair of leg frames and on which the mast portion can be placed; and is provided to extend upward at both left and right ends of the connection frame, A plate-shaped guide plate that guides the mast portion placed on the base portion .
As a result, for example, when loading the lift device into the cargo compartment of the vehicle, it becomes possible to divide the base portion and the mast portion and load them separately into the vehicle, so loading work when loading the lift device into the vehicle Can be made easier. Moreover, the space which a lift apparatus occupies in the cargo compartment of a vehicle can be made small.

In addition, an engagement tool is provided on one of the base part and the mast part, an engaged tool is provided on the other of the base part and the mast part, and the mast part is placed on the base part. In this state, the engaging tool engages with the engaged tool, so that the mast portion is fixed to the base part, and the engaging tool and the engaged tool are configured by toggle hook clamps. It is .
Thereby, it becomes possible to fix a mast part to a base part by simple operation.

The loading platform includes a support portion supported by the mast so as to be movable up and down, and a load receiving portion supported rotatably on the support portion, the load receiving portion being spaced apart from the support portion and It is configured to be displaceable between a load receiving position where a load can be placed and a first folding position close to the support portion.
Thereby, it becomes possible to load a mast part in a small space by loading a mast part in a vehicle in the state where the receiving part was displaced to the 1st folding position.

Further, the base portion is provided with the leg frame, before a base frame having a Killen binding frame mounted to the base frame, and a carriage handle for performing driving operations of the base unit The cart handle is configured to be displaceable between an operation position spaced from the base frame and a second folding position close to the base frame.
Thereby, for example, when loading the base part into the cargo compartment of the vehicle, the space occupied by the base part in the cargo compartment can be reduced by loading the carriage handle in a state of being displaced to the second folding position. it can.

  ADVANTAGE OF THE INVENTION According to this invention, the loading operation | work at the time of loading a handlift into a vehicle can be made easy. Further, the space occupied by the hand lift in the cargo compartment of the vehicle can be reduced.

It is a side view which shows a hand lift. It is a front view which shows a hand lift. It is a rear view which shows a hand lift. It is a top view which shows a hand lift. It is a front perspective view which shows a hand lift. It is a back perspective view showing a hand lift. It is a perspective view which shows the hand lift of the state by which the base part and the mast part were divided | segmented. It is a perspective view which shows the base part at the time of utilizing as a trolley | bogie.

  Next, modes for carrying out the present invention will be described with reference to the accompanying drawings.

  A handlift 1 shown in FIGS. 1 to 6 is an embodiment of a lift device according to the present invention, and includes a base unit 2 capable of traveling and a mast unit 3 attached to the base unit 2. Yes.

  In the following description, “left side”, “right side”, “back side of paper”, and “front side of paper” in FIG. 1 are respectively referred to as “rear side”, “front side”, “left side”, and It is defined as “right side”. Further, “upper side” and “lower side” in FIG. 1 are defined as “upper side” and “lower side” of the handlift 1, respectively.

The base unit 2 includes a base frame 21, a traveling rear wheel 22, and a traveling front wheel 23. The traveling rear wheel 22 and the traveling front wheel 23 are examples of traveling wheels.
The base frame 21 has a pair of left and right leg frames 211 extending in the front-rear direction, and a connecting frame 212 extending in the left-right direction and connecting the rear ends of the pair of leg frames 211. The traveling rear wheel 22 is attached to the rear end portion of the leg frame 211, and the traveling front wheel 23 is attached to the front end portion of the leg frame 211.

An engaging boss 212 a that protrudes upward is formed on the upper surface of the connection frame 212. In the case of this embodiment, the engagement bosses 212a are formed at two places on the left and right.
Guide plates 213 extending upward are provided at both left and right ends of the connection frame 212. The guide plate 213 is formed of a plate-like member, and is disposed on the left and right side portions and the front portion of the connection frame 212.

The mast portion 3 includes a pair of left and right masts 31 erected in the vertical direction, a base plate 32 that connects the lower ends of the pair of masts 31, a top plate 33 that connects the upper ends of the pair of masts 31, 31 and a fork-type cargo bed 34 supported so as to be movable up and down and on which a load can be placed. The fork type loading platform 34 is an example of a loading platform.
In the mast portion 3, a pair of left and right masts 31, a base plate 32, and a top plate 33 constitute a mast frame.

  The mast frame is placed on the connection frame 212 such that the lower surface of the base plate 32 contacts the upper surface of the connection frame 212. An engagement hole 32 a is formed in the base plate 32 in accordance with the position of the engagement boss 212 a formed in the connection frame 212, and when the mast frame is placed on the connection frame 212, the engagement boss 212a and the engagement hole 32a are engaged.

When the engagement boss 212a and the engagement hole 32a are engaged, the mounting position of the mast frame with respect to the connection frame 212 is positioned. Further, in a state where the mast frame is placed on the connection frame 212, the mast 31 is guided by the guide plate 213 and maintains the standing state.
The mast portion 3 is placed on the base portion 2 by placing the mast frame on the connecting frame 212.

Engaging tools 42 are attached to the left and right outer surfaces of the guide plate 213 of the base portion 2, and engaged tools 43 to be engaged with the engaging tools 42 are attached to the left and right outer surfaces of the mast 31 of the mast portion 3. ing. The mast part 3 is fixed to the base part 2 by engaging the engaging tool 42 with the engaged tool 43 with the mast part 3 placed on the base part 2. In a state where the mast portion 3 is fixed to the base portion 2, the mast portion 3 and the base portion 2 can move integrally.
Since the mast part 3 can be fixed to the base part 2 by engaging the engaging tool 42 and the engaged tool 43 in this way, the mast part 3 can be fixed to the base by a simple operation. It can be fixed to the portion 2.

  In the present embodiment, the engaging tool 42 and the engaged tool 43 are constituted by toggle hook clamps. Further, in this embodiment, the engaging tool 42 is provided on the base part 2 and the engaged tool 43 is provided on the mast part 3. However, the engaged tool 43 is provided on the base part 2. It is also possible to provide the engaging tool 42 on the mast portion 3.

The fork-type loading platform 34 has a support portion 341 supported by the mast 31 so as to be movable up and down, and a pair of left and right load receiving portions 342 supported rotatably on the support portion.
A slide rail 31a extending in the vertical direction is formed on the left and right inner sides of the mast 31, and the support portion 341 has a sliding protrusion 341a that is slidably fitted to the slide rail 31a. The sliding protrusion 341a is slidably fitted to the slide rail 31a, so that the support portion 341 is supported by the mast 31 so as to be movable up and down.

  The pair of left and right load receiving portions 342 are configured as fork-shaped load receiving portions, and are rotatable up and down around a rotation fulcrum 342a. The load receiving portion 342 rotates around the rotation fulcrum 342a, thereby being separated from the support portion 341 and close to the support portion 341 where the load can be placed (a position indicated by a solid line in FIG. 1). The first folding position (the position indicated by the two-dot chain line in FIG. 1) can be displaced.

  In a space surrounded by the pair of masts 31, the base plate 32, and the top plate 33, a ball screw 35 extending in the vertical direction and a gear box 36 are disposed. The gear box 36 is attached to the lower surface of the top plate 33. An upper end portion of the ball screw 35 enters the inside of the gear box 36, and a lower end portion of the ball screw 35 is rotatably supported by the base plate 32. The ball screw 35 is configured to be rotatable about an axial center arranged in the vertical direction.

A drive shaft 37 extends rearward from the rear surface of the gear box 36. The drive shaft 37 is configured to be rotatable about an axial center disposed in the front-rear direction.
A bevel gear 35 a is provided at the upper end portion of the ball screw 35, and a bevel gear 37 a is provided at the front end portion of the drive shaft 37, and the bevel gear 35 a and the bevel gear 37 a mesh with each other inside the gear box 36.

When a driving force is input to the drive shaft 37 and the drive shaft 37 rotates, the rotation of the drive shaft 37 is transmitted to the ball screw 35 through the bevel gear 35a and the bevel gear 37a.
The rear end surface of the drive shaft 37 is formed with a fitting hole 37b to which a drive source can be connected. In this embodiment, the fitting hole 37b is formed in a hexagonal hole into which a hexagon wrench can be fitted, and a hexagon wrench bit attached to the electric driver 5 (see FIG. 1) can be fitted therein. Yes. By fitting the hexagonal wrench bit and the fitting hole 37b, the hexagonal wrench bit and the drive shaft 37 are integrally connected to be rotatable.

In this case, the drive shaft 37 can be rotationally driven by driving the electric driver 5 and rotating the hexagon wrench bit. That is, the drive shaft 37 is configured to be able to be driven to rotate using an electric tool such as the electric driver 5 as a drive source.
Further, the drive shaft 37 can be driven not only by an electric tool such as the electric driver 5 but also manually by using a socket wrench or the like.

  A nut portion 343 is connected to the support portion 341 of the fork-shaped cargo bed 34, and the nut portion 343 is screwed into the ball screw 35. The nut portion 343 is fixed to the support portion 341 in a non-rotatable manner, and can move in the vertical direction as the ball screw 35 rotates. The fork-type cargo bed 34 can be moved up and down by moving the nut portion 343 in the vertical direction. In the present embodiment, the fork-type cargo bed 34 can be raised and lowered by rotationally driving the drive shaft 37 by the electric driver 5.

  The mast portion 3 has a handle 38. The handle 38 is rotatably supported by the gear box 36. The handle 38 has a first end portion rotatably supported by the gear box 36, and a grip portion 38a is disposed at a second end portion opposite to the first end portion.

The handle 38 is rotated around the first end, so that the gripping portion 38a is separated from the mast 31 (the position indicated by the solid line in FIG. 1), and the gripping portion 38a is close to the mast 31. (Position shown by a two-dot chain line in FIG. 1).
When the handle 38 is displaced to the grip position, the hand lift 1 can be moved by gripping the grip portion 38 a and pushing and pulling the handle 38.
An auxiliary wheel 39 is attached to the base plate 32 of the mast portion 3.

In the handlift 1 configured as described above, as shown in FIG. 7, the base portion 2 and the mast portion 3 are configured to be separable.
That is, as shown in FIG. 5 and the like, the engaged state between the engaging tool 42 and the engaged tool 43 is released from the state in which the mast portion 3 is fixed to the base portion 2, and the mast portion 3 is The mast part 3 can be separated from the base part 2 by pulling upward with respect to the base part 2.

  Thus, in the handlift 1, since the base part 2 and the mast part 3 are comprised so that division | segmentation is possible, when loading the handlift 1 in the luggage compartment of a vehicle, for example, the base part 2 and the mast part 3 can be divided and loaded separately into the vehicle.

In this case, by dividing the base part 2 and the mast part 3, the weight of the hand lift 1 can be divided into the weight of the base part 2 and the weight of the mast part 3. The loading operation can be facilitated as compared with the case of loading the handlift 1 in a state where the mast portion 3 is integrated with the vehicle.
Moreover, the space which the handlift 1 occupies in a cargo compartment can be made small by loading in the vehicle in the state which divided | segmented the base part 2 and the mast part 3. FIG.

  In particular, in the mast portion 3, the load receiving portion 342 is configured to be displaceable between the load receiving position and the first folding position, and the handle 38 is configured to be displaceable between the operation position and the storage position. The mast portion 3 can be loaded in a small space by displacing the cargo receiving portion 342 to the first folding position and loading the mast portion 3 on the vehicle with the handle 38 being displaced to the storage position.

Moreover, in the handlift 1, since the mast part 3 and the base part 2 can be divided | segmented by canceling | releasing the engagement state of the engaging tool 42 and the to-be-engaged tool 43, simple operation Thus, the mast portion 3 and the base portion 2 can be divided.
Further, since the auxiliary wheel 39 is attached to the base plate 32 of the mast portion 3, when the mast portion 3 and the base portion 2 are divided, the mast portion 3 is kept in a state where the auxiliary wheel 39 is grounded. The mast part 3 can be easily moved by pushing and pulling.

As shown in FIG. 8, the base part 2 from which the mast part 3 is separated can be used as a carriage by attaching a carriage handle 61 and a top plate 62.
The top plate 62 is composed of a plate-like member, and spans between the left and right leg frames 211. By placing the top plate 62 so as to be bridged between the left and right leg frames 211, it is possible to place a load on the top plate 62.

  The carriage handle 61 includes a support column 611 extending upward from the rear ends of the left and right leg frames 211, and a gripping unit 612 extending in the left-right direction and connected to the upper ends of the left and right support columns 611. Have.

The cart handle 61 is configured to be rotatable about a rotation fulcrum 61 a disposed at the lower end of the support column 611.
The carriage handle 61 rotates about the rotation fulcrum 61a, so that the support column 611 extends upward from the rotation fulcrum 61a and the gripping portion 612 moves away from the leg frame 211 (shown by a solid line in FIG. 8). The column portion 611 extends forward from the rotation fulcrum 61a, and the grip portion 612 can be displaced between the second folding position (position indicated by a two-dot chain line in FIG. 8) close to the leg frame 211. It is configured.

In the state where the cart handle 61 is displaced to the operation position, the traveling operation of the base unit 2 can be performed by gripping the grip portion 612 and pushing and pulling the cart handle 61.
Thus, the luggage can be transported by the base portion 2 by pushing and pulling the carriage handle 61 in a state where the luggage is placed on the top board 62.
Moreover, when loading the base part 2 in the cargo compartment of the vehicle, the space occupied by the base part 2 in the cargo compartment is reduced by loading the carriage handle 61 in a state of being displaced to the second folding position. be able to.

  The cart handle 61 may be configured to be attached to the base frame 21 after the mast portion 3 is separated from the base portion 2. The mast 3 may be always attached to the base frame 21 regardless of the state where the mast 3 is mounted on the base 2 and the state where the mast 3 is divided from the base 2. it can.

  The top plate 62 can be detachably attached to the base frame 21 and is attached after the mast portion 3 is separated from the base portion 2 after the mast portion 3 is separated from the base portion 2. When the mast portion 3 is attached to the portion 2, it can be configured to be detached from the base frame 21.

DESCRIPTION OF SYMBOLS 1 Hand lift 2 Base part 3 Mast part 21 Base frame 22 Traveling rear wheel 23 Traveling front wheel 31 Mast 34 Fork type loading platform 42 Engagement tool 43 Engagement tool 61 Carriage handle 211 Leg frame 212 Connection frame 341 Support part 342 Receiving part

Claims (4)

A base unit having traveling wheels and capable of traveling;
A loading platform on which a load can be placed; a mast that supports the loading platform so as to be capable of being raised and lowered; and a mast portion that is attached to the base portion,
The base portion and the mast portion are configured to be splittable,
An auxiliary wheel is attached to the mast portion ,
The base is
A pair of left and right leg frames extending in the front-rear direction to which the traveling wheels are attached;
A connecting frame that connects the pair of leg frames and on which the mast portion can be placed;
A plate-shaped guide plate that extends upward at the left and right end portions of the connection frame and guides the mast portion placed on the base portion;
A lift device characterized by that. An engagement tool is provided on one of the base part and the mast part,
An engaged tool is provided on the other of the base part and the mast part,
In a state where the mast part is placed on the base part, the mast part is fixed to the base part by engaging the engaging tool with the engaged tool ,
The engaging tool and the engaged tool are constituted by toggle hook clamps,
The lift device according to claim 1. The cargo bed is
A support portion supported by the mast so as to be movable up and down;
A load receiving part rotatably supported by the support part;
The cargo receiving portion is
It is configured to be displaceable between a load receiving position where the load can be placed apart from the support portion and a first folding position close to the support portion.
The lift device according to claim 1 or 2, wherein The base is
And the leg frame, a base frame front having a Killen binding frame,
A carriage handle attached to the base frame for carrying out a running operation of the base part;
The cart handle is configured to be displaceable between an operation position separated from the base frame and a second folding position close to the base frame.
The lift apparatus as described in any one of Claims 1-3 characterized by the above-mentioned.

Images