KR100236548B1 - Transport vehicle - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

A caterpillar having a caterpillar suitable for carrying a load by lifting a stairway, and an upright driving wheel suitable for turning in a narrow place.

2. The technical problem to be solved by the invention

When the load is heavy, it is possible to solve the problem that requires a large force to incline from the upright position, and to tilt the carrier in advance, it is easy to lean, but in this way it is not possible to stand up when there is no load. It is to solve the problem of difficult handling.

3. Summary of Solution to Invention

One end of the small wheel 42 is supported by the support part 35, and the support part 35 is equipped with an inclined motion body 40 which can be fixed in a posture that is in a balanced position and protrudes obliquely below the support part 35. will be.

4. Important uses of the invention

Caterpillar, Carrier

Description

Carrier

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caterpillar having a caterpillar suitable for hauling a stairway by lifting a stairway and an upright driving wheel suitable for changing directions in a narrow place, and in particular, converting an upright driving into a caterpillar driving. The present invention relates to a carriage for facilitating tipping operation.

Applicant of the present application is a carrier having a carafe that is mainly suitable for transporting cargo by lifting and lowering a staircase, as disclosed in Japanese Patent Application Laid-Open No. 63-134383, and a back of a support unit protruding substantially at right angles to a lower end thereof. In addition, the linear running portion of the caterpillar driven by the motor is formed to be substantially parallel to the bearing portion, and at the lower portion of the bearing portion, the linear driving portion is receded from the lower portion of the bearing portion, rather than the linear driving portion of the carapillar, and further downward than the lower portion of the caterpillar. Protruding oilfield Iv) and at the same time invented a small wheel on the bottom of the support portion.

Since the moving path is limited to a straight line when traveling by the caterpillar, this vehicle must travel in the upright position and the small wheels in the upright position at the time of direction change, and it must be inclined so as to run again by the caterpillar when it reaches the stairs.

However, when the load is heavy, there is a problem that a large force is required to incline from an upright position.

And if the carrier is inclined in advance, it is possible to lean easily, but if it does so, there is a problem that handling is difficult because it is not possible to stand up by itself when there is no luggage.

1 is a perspective view of a form of one embodiment of the present invention,

2 is an enlarged cross-sectional view of the support in a state in which the inclined moving body protrudes from the movable frame,

3 is an enlarged cross-sectional view of the support in a state in which the inclined body is accommodated in the movable frame;

4 is a perspective view of a support part in a state in which the inclined movement body is accommodated in the movable frame;

5 is a partially enlarged perspective view of the support part showing a state in which the inclined motion part is received and fixed to the movable frame;

6 is a side view of a flat driving state by a caterpillar,

7 is the genetic ring 輪) and each side is a side view of a standing partner

8 is a perspective view of a state in which the inclined movement body is projected from the movable frame and the carrier and the support are inclined;

9 is a side view of the state of going down the stairs,

10 is a side view of a state of climbing stairs,

11 is a side view of the movable frame folded.

* Explanation of symbols on the main parts of the drawings

1: Carrier 10: Caterpillar

15: straight running part 22: oilfield ring

30: basic frame 31: connecting plate

32: movable frame 35: support

40: inclined movement body 41: small wheel

43: inclined motion link 44: bracket

45: link 48: link four furniture

50: lever 52: stop ring

54: stopper a: tatami

b: side edge c: bottom edge

As a means for solving the above-mentioned problems, the invention of claim 1 supports a small wheel to one end thereof, and is mounted on an inclined body which can be fixed in a posture parallel to the support portion and a posture inclined downwardly under the support portion. As a result, when loading and tilting a load, if the tilting body is fixed in a posture which is obliquely projected downward, the center of gravity is caught behind it, so that it can be easily tilted and moved to the caterpillar run, and when there is no load, the slope By fixing the body in a posture parallel to the support, it is possible to stand up by itself, which makes the handling easy. In the invention of claim 2, the inclined body is axially supported toward the carrier of the support of the invention of claim 1. A small wheel is supported by the inclined motion link axially supported on the front end side of the inclined body, and the inclined motion link is supported. As the shaft is connected to the bracket protruding downward by the connecting link through the connecting link, a four-bar linkage mechanism is constructed, and a stop link axially supported by the lever axially supported by the support is axially supported by the connecting link. And the stopper which restrains the position of the bearing part rather than the straight extension line which connects the axial support point of the support part of a lever with the axial support point of a lever of a stop link, and was installed in the lever Can be reliably maintained in a posture in which the inclined movement body is inclined downwardly in a state where it is mounted, and the posture can be released. The invention of claim 3 is inclined in the invention of claim 1 or claim 2. Since the retaining member is installed in a posture parallel to the support and releases the holding, it is difficult to Parallel to the moving member and the support to be able to stand by itself.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment which applied this invention to the tatami conveyance is described based on an accompanying drawing.

In FIG. 1, 1 is a bearing part which couples a pair of long and thin frames 2 in an up-and-down direction with the connecting plate 3 crossed between them, and the connecting rod 6 on the upper part of both frames 2 is shown. Coupled to the lower end of the pair of grip pipes 5, the upper half of which is bent forward, is fitted, and a plurality of protrusions are formed on the outer periphery of the back side of the carrier 1; A pair of left and right caterpillars 10, each of which has an endless belt having 11), has a driving wheel 14 supported at a lower end of a side plate 13 along a frame 2 and a driven wheel supported at an upper end thereof. 12, a plurality of electric flows (16) which are mounted on a walk between the back wheels (15) in parallel with the side plates (13), and are supported by the side wheels (13) between the drive wheels (14) and the driven wheels (12) of the caterpillar (10). It is maintained by the straight line parallel to the bearing part 1 by this, and this caterpillar 10 is abbreviate | omitted which uses the battery of illustration not shown connected to the lower drive wheel 14 as a power supply. The driven motor is rotated in both forward and reverse directions, and the driving operation is carried out by the casting part 18 provided at the upper end of the carrier part 1 and the grip pipe 5 from the casting part 18. So as to be connected through the lead wire 19 through the subsidiary part 20 fixed to the upper end of the grip pipe 5. It can control.

On the lower end of the side plate 13, a pair of left and right dielectric rings projecting downward from the lower end of the caterpillar 10 and retracting toward the carrier 1 side rather than the rear straight running part 15 of the caterpillar 10 I) 22 is supported by the shaft 23 so that each may freely rotate freely.

The support 1 projects from the lower ends of the two frames 2 forwardly at right angles to the base frame 30, 30 of the left and right pair of short step frames joined by the connecting plate 31. Both ends of the U-shaped movable frame 32 are freely connected to each other by the shaft 33, and the pin 34 is detachably attached to a portion where both frames 30 and 32 in front of the shaft 33 overlap. The support part 35 which protrudes forward at right angles with respect to the carrier part 1 is formed by being inserted so that the movable frame 32 may be fixed to the base end frame 30, The support part 35, The pin 34 is pulled out, and the movable frame 32 is lifted upward, and it can be folded while making it the posture which is substantially parallel to the carrier part 1.

In addition, the upper surface 32a of the front end portion 32a of the movable frame 32, the upper surface 31a of the connecting plate 31 between the base end frame 30, and the upper end portion 3a of the connecting plate 3 on the upper end of the carrier part 1a. ), Each of the plurality of anti-tip projections 36 at regular intervals in the left and right directions is formed at a position where they are fitted into each other between the surfaces 32a, 31a, and 3a, and one side surface of the tatami a. The tatami a is placed while the edge b of the tatami a is interposed between the base 1 and the lower edge c of the support 35, respectively, between the anti-falling projections 36 adjacent to each other. It is kept so that it does not tip over.

When the stairway stairs are narrow and cannot be rotated by stacking tatami a straight, when the tilt prevention projection 36 is tilted in one direction as viewed from above or tilted in the left and right directions, the load is increased. The number of possible tatami as is reduced, but can be turned with a small radius.

When carrying refrigerators other than tatami, this inclination prevention projection 36 is unnecessary.

As shown in FIG. 2, FIG. 3, and FIG. 4, in the support part 35, the inclined motion body 40 which is a pair of right and left inside the movable frame 32 is connected to the movable frame 32 by the base frame 30. A small wheel 41 which is supported by the shaft 33 supporting the 32 and which can rotate left and right is supported by the inclined motion link 43 supported by the shaft 42 on the front end side of each inclined body 40. The inclined motion link 43 is connected to the bracket 44 protruding downwardly from the base frame 30 by the shafts 46 and 47 through the connecting link 45, thereby providing a four-bar linkage mechanism. The stop link 52 supported by the shaft 51 by the shaft 49 on both sides of the movable frame 32 and the lever 50 is formed at the same time as the 48 is configured. Is supported by the shaft (53) to the link link 45, the stop link 52 and the shaft (53) for supporting the link link 45, the lever (50) supports the movable frame (32) The shaft 49 and the stop link 52 Than a buggy line A connecting the shaft 51 to support the 50 extension, a stopper 54 for regulating a few load-carrying platform portion (1) side position, it is installed on the lever 50.

Each of the shafts 42, 46, 47, 49, 51, and 53 has an inclined moving body 40, an inclined moving link 43, a connecting link 45, a lever 50, and a stop link 57 on both left and right sides. When one of the left and right levers 50 is operated, the other one member is similarly operated.

Auxiliary wheel 55 is provided on the lower surface of the front end of each inclined movement body 40, and the inclined movement body 40 is moved to the movable frame 32 on the lower surface of one side of the movable frame 32 as shown in FIG. ), When it is stored inside, is stopped by the rotation in the arrow direction as shown in Fig. 5 on the stopping plate 56 protruding from the front end of the inclined movement body 40, and maintained in that state. The plate piece 57 which hangs and stops and maintains it in the state by which it stops and stops by rotation in a reverse direction is formed.

When transporting the tatami a while moving a flat place by such a transport vehicle having such a structure, as shown in Fig. 6, the linear running portion 15 of the caterpillar 10 is made to be substantially horizontal. By driving the caterpillar 10 in a state of being in contact with the moving surface, the carrier can be driven by itself in a linear direction. Moreover, as shown in FIG. 7, the inclined moving body 40 is accommodated in the movable frame 32 to support the carrier part ( The vehicle is supported by the dielectric wheels 22 and the small wheels 41 while the vehicle is supported in the upright position. In this state, the caterpillar 10 floats away from the moving surface. By holding, pushing and pulling (5), the carrier can be moved in any direction.

The auxiliary wheels 55 are effective when crossing the trench in traveling in such a state.

When carrying the tatami a while raising the stairs, as shown by the broken line in FIG. 5, the strip 57 is removed from the stopping plate 56 of the inclined movement body 40, and then the lever as shown in FIG. When the vehicle 50 is raised, the inclined body 40 is inclined downwardly with respect to the shaft 33, and as shown in FIG. 8, the support part 35 and the support part 1 are relatively inclined with the dielectric ring ( 22), the center is tilted backward by a certain angle, and the center is moved backwards, and is reversed when there is no load, but when a tatami a with a certain weight or more is loaded, the center moves forward and stands on its own.

In this posture, the shaft 53 supporting the stop link 52 and the connecting link 45 is formed by the shaft 49 supporting the lever 50 on the movable frame 32 and the stop link (as shown in FIG. 2). A stopper 54 is provided in the lever 50 to restrict the position slightly to the bearing part 1 position rather than the extension line of the straight line A connecting the shaft 51 supporting the lever 50 to the lever 50. 52 is stabilized by being pressed by the stopper 54.

Therefore, as shown in FIG. 6, the caterpillar 10 can be easily knocked down so that the caterpillar 10 is horizontal, and as shown in FIG. 9, the stairs are lowered by hanging on the ridge 11 of the caterpillar 10 at the edge of the stairs. In addition, it is possible to go up as shown in FIG. 10, and the attitude of FIG. 8 is also suitable when changing directions from the landing of stairs.

And when not using a carriage, a narrow place removes the pin 34 of the support part 35 in the state which raised the support part 1 like FIG. 11, and folded the movable frame 32 upwards. Can be stored even.

Claims (3)

On the back side of the carrier part which protrudes the support part in the substantially perpendicular direction at the lower end, the linear running part of the caterpillar driven by a motor is installed in substantially parallel with the carrier part, and at the lower part of the carrier part, the said linear running part of the said caterpillar Rather, it is supported by a dielectric wheel that retracts toward the carrier side and protrudes below the lower end of the caterpillar, and at the same time, one end of the small wheel is supported by the support in a vehicle provided with a small wheel on the bottom of the support. And a tilting body which can be fixed in a posture parallel to the support and a posture inclined below the support. The inclined movement link according to claim 1, wherein the inclined movement body is axially supported toward the bearing portion of the support portion, and the small wheel is supported by the inclined movement link axially supported at the front end side of the inclined movement body. And a stop link axially supported by a lever supported by the lever axially supported by the connecting link to the bracket protruding downward from the supporting portion through a connecting link and being axially supported by the connecting link. A stopper for regulating the axial point of the stop link and its connecting link to a position slightly on the carrier side, rather than a straight line extending between the axial point for the support of the lever and the axial point for the lever of the stop link. A carriage, characterized in that installed on the lever. The transport vehicle according to claim 1 or 2, wherein a stopping member is provided for holding the inclined movement body in a position parallel to the support portion and releasing the holding thereof.