JP2002160638A - Carriage for vehicle maintenance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carriage vehicle maintenance making tire dismounting operation easy without requiring of carrying a tire to improve operation effi ciency. SOLUTION: This carriage for vehicle maintenance 1 can freely travel on a floor and mounts a tire maintenance tool 5, and is provided with a tire lift device 3 capable of vertically lifting the tire 2 and a tire support mechanism 4 provided on an upper part of the tire lift device 3 to support the tire 2. When the tire 2 is raised by the tire lift device 20, the tire 2 is positioned above a carriage body 6, and when the tire 2 is lowered by the tire lift device 20, the tire 2 is stored inside of the carriage body 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle maintenance trolley, and more particularly to a vehicle maintenance trolley for performing inspection and maintenance work around tires.

[0002]

2. Description of the Related Art Conventionally, as one of inspection and maintenance work of a vehicle, there is a so-called undercarriage inspection and maintenance work, in which a tire is removed and a suspension and brake-related parts are inspected and maintained. On the other hand, in vehicle inspection and maintenance work, generally used vehicle maintenance trolleys are provided with a plurality of casters 9 on the bottom surface so as to be able to travel freely on the floor surface, and various maintenance trolleys on the upper surface. A tool storage section or a work space for storing tools is provided.

In order to perform undercarriage inspection and maintenance work using the above-described conventional vehicle maintenance trolley, first, the vehicle is lifted to a low position to remove tires, and the vehicle maintenance trolley is moved. Remove all four tires while using the specified tool. Then, take the removed tire out of the way. Next, in order to improve workability, the vehicle is lifted up to a high position, and a vehicle maintenance cart is sequentially moved to each axle portion for inspection and maintenance to perform inspection and maintenance work. Then, after the inspection and maintenance are completed, the vehicle is returned to a lower position again for mounting the tires, and the four-wheel tires are carried under the vehicle and individually mounted.

[0004]

However, according to such a conventional method, the amount of lift of the vehicle at the time of tire attachment and detachment and at the time of vehicle inspection is different in undercarriage inspection and maintenance work. The increase in the number of lift processes deteriorates workability and increases the work time. In addition, it is necessary to carry heavy tires every time all four wheels are attached and detached, which has a problem in that workability is poor and work is difficult for persons without physical strength.

Further, in recent years, in order to respond to a user's request, a short-time vehicle inspection for performing a vehicle inspection in a short period of time is known.
Improvement of work efficiency is also desired in order to shorten the time of inspection and maintenance work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and provides a vehicle maintenance bogie which facilitates the work of attaching and detaching tires and improves the working efficiency without carrying the tires. It is intended to do so.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a vehicle for maintenance, which is a work vehicle on which a tire can be moved up and down and which can freely move on a floor surface and on which a tire maintenance tool is mounted. A tire supporting means provided on the tire lifting means for supporting the tire, wherein the tire lifting means positions the tire above the bogie main body when the tire is lifted by the tire lifting means; The tire can be accommodated inside the bogie when descending by the means.

It is preferable that a washing tray is provided on the carriage. Further, it is preferable that the washing work tray is arranged on the non-operator side during the tire attaching / detaching operation, while it is preferably arranged above the tire when the tire is housed inside the bogie. Further, the tire lift means is provided at a substantially central portion of the bottom portion 8 of the truck in plan view, and the washing work tray is provided on the side opposite to the worker of the truck, and is moved on the truck by slide means. It is preferable that the tire maintenance tool is freely disposed and mounted on the side of the bogie adjacent to the worker side and the worker side with respect to the tire lift means. Further, it is preferable that the trolley is provided with a collection tank for collecting the waste liquid used for the cleaning operation. Further, it is preferable that the tire lift means constitutes a tire lift device using an air cylinder.

According to the present invention, the following effects can be obtained. That is, in the vehicle maintenance vehicle, by providing a tire lift means capable of vertically moving the tire up and down, and a tire support member provided on the tire lift means for supporting the tire, at the time of tire mounting and dismounting work,
Since the tire can be attached and detached while being supported, the attaching / detaching operation can be easily performed without manually lifting and lowering a heavy tire. In addition, since the tire is lifted and lowered by the tire lifting means, it is possible to perform the attaching / detaching work at an optimum height (for example, eye height in a standing posture) by adjusting the lift amount. it can. In addition, when the tire is lowered by the tire lift means, the tire can be housed inside the bogie so that the tire can be moved without using the space above the tire to perform inspection and maintenance work on a portion under the vehicle undercarriage. Can be performed.

In addition, since the washing tray is provided on the cart, the washing work can be performed at the same position on the same work table following the tire attaching / detaching work, so that the workability can be significantly improved.

[0011] Further, the washing work tray is arranged on the non-operator side during the tire attaching / detaching operation, while when the tire is housed inside the bogie, it is arranged above the tire, so that the washing tray is placed above the tire. It is possible to work at a position with good workability using a space.

Further, by providing the tire lift means at a substantially central portion of the bottom portion 8 of the bogie in plan view, the bogie can be stabilized, and work can be performed at a substantially central portion of the bogie. It is possible to eliminate waste of work operation. Further, the washing work tray is provided on the opposite side of the truck from the worker and is movably disposed on the truck by means of a slide, so that it is disposed at one position which does not interfere with the tire at the time of tire attaching / detaching work. In some cases, the tire maintenance tool can be easily moved and installed above the tire, and the tire maintenance tool can be moved by the worker side and the side of the bogie adjacent to the tire lift means, that is, within the reach of both the front and side hands of the worker. By mounting it on a work, the worker can work in the shortest time without moving wastefully.

[0013] Further, by providing the bogie with a recovery tank for recovering the waste liquid used in the cleaning work, the work can be performed at the same position without paying attention to the wastewater treatment. Workability can be improved.

[0014] Further, the tire lift device can constitute a tire lift device with a simple structure by using an air cylinder. Further, since the air source to be used can be easily prepared in the factory, there is an advantage that it is not necessary to separately prepare a driving source.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show an example of an embodiment of the present invention. In the drawings, portions denoted by the same reference numerals as those in the drawings represent the same items. FIG. 1 is an explanatory view showing an entire configuration of a vehicle maintenance truck according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a tire accommodation state by the vehicle maintenance truck, and FIG.
FIG. 4 is an explanatory view showing a configuration of a tire lifter mechanism and a tire support mechanism according to the embodiment; FIG. 4A is an explanatory view showing a state of a vehicle maintenance cart when tires are detached from a vehicle;
(B) is an explanatory view showing a state in which tires are housed in a dashed air vehicle maintenance cart, and (c) is an explanatory view showing a working state of an underbody part of the vehicle.

As shown in FIGS. 1 and 2, the vehicle maintenance vehicle 1 according to the present embodiment is a work vehicle on which a tire maintenance tool 5 can be mounted so that the vehicle can run on a floor surface and a tire maintenance tool 5 is mounted. The tire lift device 3 includes a tire lift device 3 that can be moved up and down in a vertical direction, and a tire support mechanism 4 that is provided above the tire lift device 3 and supports the tire 2. To hold the tire 2 at a predetermined position, and when the tire 2 descends,
The tire 2 is housed and arranged inside the bogie main body 6.

The bogie main body 6 has a steel frame 7.
A box having a rectangular shape that is long in the horizontal direction in a plane cross section,
Casters 9 are provided at four corners of the bottom lower surface 8a so as to be rotatable about a substantially vertical axis direction, and a rectangular opening 11 that is long in a horizontal direction in a plan view is formed at an upper portion thereof. A space 12 is formed inside. The opening 1
The size of 1 is such that its longitudinal dimension is larger than the diameter of the tire 2 to be worked, and its width dimension is
It is formed larger than the width of the tire 2.

The space 1 formed inside the bogie main body 6
2, the size in the longitudinal direction is larger than the diameter of the tire 2 to be worked, and the size in the width direction is
The height at which the lower part of the tire 2 is located higher than the upper end 13 of the bogie when the tire 2 is lifted up by the tire lifting device 3 described later, which is larger than the width of the tire 2 and the dimension in the height direction. Is configured.

The tire lift device 3 is disposed at a substantially central portion of the bottom portion 8 inside the bogie main body 6 in plan view. The tire lift device 3 employs a multi-stage air cylinder 20 such that the lower end of the tire 2 is located above the upper end 13 of the bogie at the maximum stroke. A tire support mechanism 4 for supporting the tire 2 is formed at the tip 21a of the cylinder rod 21 that projects upward.

As shown in FIG. 3, the tire support mechanism 4 includes a pair of holding rollers 22 for receiving and holding the running surface of the tire 2, and a guide for regulating the installation position of the tire 2 in the width direction. A bar 23 and a roller holder 24 for holding the holding roller 22 and the guide bar 23 are provided.
The holding roller 22 is arranged in a direction substantially perpendicular to the longitudinal direction of the opening 11 and at intervals smaller than the diameter of the tire 2.
They are arranged side by side and are rotatable on a mounting bracket 25 by a roller holder 24. The roller length is smaller than the width of the opening 11 and the width of the inside of the bogie.

The guide bar 23 is formed in a substantially L-shape by a metal round bar or a pipe material, and a lateral piece 23a is formed integrally with the roller holder 24 along the axial direction of the holding roller 22. A vertically extending piece 23b is formed so as to rise substantially vertically upward from near the worker-side end of the holding roller 22. Also,
Each guide bar 23 is arranged outside each roller. The mounting bracket 25 has a concave shape in which vertical portions at both ends are raised upward, and the holding rollers 22 are integrally attached to the vertical portions via a roller holder 24, respectively. A substantially central portion between the holding rollers 22 is attached to the distal end portion 21a of the cylinder rod 21 when viewed.

As shown in FIG. 2, on the upper part of the cart,
A slide guide 26 is formed substantially in parallel on both ends in the longitudinal direction of the upper portion of the carriage, and the washing operation device 30 is movable on the slide guide 26 in the width direction of the carriage (front-back direction with respect to the worker). Are located in Cleaning work device 3
Reference numeral 0 denotes a metal frame 32 formed on both sides and the frame 3
A rectangular cleaning work tray 31 is formed so as to connect the upper ends 32 a of the two and span the opening 11. A rotating roller 33 is disposed below the frame 32 so as to be easily movable on the slide guide 26. That is, it is arranged above the rear side (opposite to the worker) of the bogie when the tires are to be attached / detached, and is configured to be movable above the tires 2 when the tires 2 are accommodated inside the bogie.

As shown in FIG. 4, the trolley is provided with a waste liquid tank 35, and collects waste liquid generated during the work accumulated in the cleaning work tray 31 through a drain tube 36. I have.

As shown in FIGS. 1 and 2, the tire maintenance tool 5 is mainly mounted on the front and side surfaces of the bogie. An operation valve 41 of the tire lift device 3 is provided at an upper part of the front of the bogie, a document box 42 such as a manual is provided at a substantially central part, a box 43 for an air appliance is provided at an upper right part, and an outlet 44 for supplying air is provided at a lower right part. At the lower part, a long tray 45 such as a bar is installed in consideration of work efficiency.

A plurality of holders 46 for pneumatic instruments such as an air impact wrench and large tools are provided at the upper part on the right side of the cart. On the other hand, trays 47 and 48 for small tools, such as a wrench and a socket, and a tray 49 for a spray can for work are arranged on the left side of the cart so as to protrude outward in three stages in the vertical direction. In these tool trays, the layout of the tools can be changed as needed.

A dust box 50 and a vacuum device 51 for removing brake oil are arranged on the bottom 8 inside the bogie, and an air filter 52 for supplying air, a regulator 53 and a lubricator 54 are installed on the front side of the bottom 8. I have.

Next, the operation of the undercarriage inspection and maintenance work by the vehicle maintenance truck according to the present invention will be described with reference to the drawings. FIG. 4A is an explanatory diagram showing a state of the vehicle maintenance trolley when tires are attached to and detached from the vehicle, FIG. 4B is an explanatory diagram showing a state in which tires are housed in a linear vehicle maintenance trolley,
(C) is an explanatory view showing a working state of the underbody part of the vehicle.

When checking and maintaining the undercarriage of the vehicle 10 with the vehicle maintenance cart 1 according to the present invention, first, FIG.
(A), the lift amount of the vehicle lift (not shown) is adjusted so that the position of the tire 2 of the lifted vehicle 10 comes to a position of approximately the height of the worker in a standing posture. I do. Then, the vehicle maintenance cart 1 is arranged below the tire, and the washing work tray 31 is arranged on the other side of the tire 2.

In this state, the cylinder rod 21 of the tire lift device 3 is stroked in the extending direction, and the tire support mechanism 4 is disposed below the tire 2. Then, the tire 2 is attached and detached while the tire 2 is supported by the tire support mechanism 4. At this time, the tire 2 has a tire support mechanism 4
Therefore, the worker can safely remove the tire 2. In a state where the removed tire 2 is held on the tire support mechanism 4, as shown in FIG. 4B, the cylinder rod 21 of the cylinder lift device is stroked to the contraction side, and the tire 2 is moved into the bogie. The tire 2 is housed.

By removing the tire 2, the area around the underbody is exposed, and the inspection and maintenance work can be performed. At this time, as shown in FIG. 4C, the cleaning work tray 31 is slid under the mechanical components related to the suspension and the brake, and the cleaning work tray 31 is moved to an optimum position.
Can be arranged to perform the cleaning operation. In this state, the height of the washing work tray 31 is adjusted so as not to interfere with the tire 2. During the maintenance work, the waste liquid used for cleaning the underbody part is once received in the cleaning work tray 31 and collected in the waste liquid tank 35 via the drain tube 36.

When the tire 2 is to be mounted again after the inspection and maintenance work has been completed as described above, FIG.
As shown in (2), the cylinder lot of the tire lift device 3 is stroked toward the extension side to arrange the tire 2 at a predetermined position on the vehicle 10 side, and the tire 2 is mounted on the vehicle 10. In this manner, the worker can easily and safely attach and detach the tire 2 without lifting the heavy tire 2. In addition, tools used for tire attachment / detachment work, cleaning work, etc. are arranged within the reach of the worker, so in a series of work, the worker should work without significantly disturbing his standing posture. Can be.

With the above construction, according to the vehicle maintenance cart 1 according to the present embodiment, the tire lifting device 3 allows the tires 2 to be easily removed without manually lifting and lowering the heavy tires 2 at the time of tire attachment / detachment work. 2 can be performed. In addition, by adjusting the lift amount, it is possible to perform the attachment / detachment work at an optimum height (for example, eye height in a standing posture) for the worker.

In this embodiment, the tire lift device 3
The multi-stage air cylinder 20 is adopted for the tire lift device 3 with a simple configuration and compactly in a bogie.
Could be configured. Furthermore, since air is used as the driving source,
The air supply source is also easy to prepare, and there is an effect that the lift can be moved up and down by a simple operation without requiring maintenance.

Further, since a pair of holding rollers 22 are employed in the tire supporting mechanism 4, the tire 2 can be rotated when the tire is attached or detached, so that the position of the mounting portion (the mounting hole for the stud bolt) can be easily adjusted to the optimum position. Can be moved to. Further, by providing the guide bar 23 projecting upward on the worker side of the tire support mechanism 4, the tire 2 can be positioned when the tire is attached and detached, and is prevented from falling off from the tire support mechanism 4. be able to.

Further, as the slide means of the washing work tray 31, the slide guide 26 is installed on the trolley side and the rotating roller 33 is installed on the washing work tray 31 side, so that the structure is simple and even with a small force. The operation of moving the washing work tray 31 can be easily performed.

Further, a waste liquid tank 35 is installed on the bogie main body 6, and the drain tube 3 communicated with the waste liquid tank 35.
Since the cleaning liquid 6 is connected to the cleaning tray, waste liquid generated at the time of cleaning work or replacement of brake oil can be easily collected.

Further, the tire maintenance tool 5 is arranged on the operator side with respect to the tire lift device 3 and the tire 2, and is arranged on the side surface of the bogie adjacent to the tire maintenance device, and is classified and arranged according to the work content. As a result, the work can be performed at the approximate center of the front side of the bogie, and the necessary tools can be procured within the reach of both the front and side hands without moving the operator. Work can be done in less time.

In the present embodiment, the air cylinder 20 is employed for the tire lift device 3, but the present invention is not limited to the tire lift drive system. A jack may be used. Further, in the present embodiment, the holding roller 22 is adopted for the tire support mechanism 4, but the present invention is not limited to the method for holding the tire 2, for example, without employing the holding roller 22. Alternatively, a holding bar or a holding block may be arranged at two places below the tire. Further, in the present embodiment, the guide bar 23 protruding upward is provided on the worker side of the tire support mechanism 4, but the present invention is not limited to this. May be held.

In this embodiment, as the slide means, the slide guide 26 is provided on the carriage and the rotating roller 33 is provided on the washing work tray 31 side.
The present invention is not limited to a system in which the washing work tray 31 is slid, and for example, the one fixed to the trolley side and the one fixed to the washing work tray 31 are integrally configured. Alternatively, a slide guide configured to be slidable may be employed. The layout of the tool 5 for tire maintenance according to the present embodiment is merely an example, and the present invention is not limited to this. It should be noted that the vehicle maintenance cart of the present invention is not limited to the illustrated example described above, and it is needless to say that various modifications can be made without departing from the scope of the present invention.

[0040]

As described above, according to the first aspect of the present invention,
According to the vehicle maintenance trolleys of the above-described items 6, the tire 2 can be attached and detached with a simple operation, and the work efficiency can be significantly improved without carrying the tire 2 manually. Therefore, the time required for the inspection and maintenance work can be shortened, so that an excellent effect can be achieved that the vehicle inspection can be performed in a short time in order to respond to the user's request.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of a vehicle maintenance cart according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a tire accommodation state of the vehicle maintenance cart.

FIG. 3 is an explanatory diagram showing a configuration of a tire lifter mechanism and a tire support mechanism according to the embodiment.

FIG. 4 (a) is an explanatory view showing a state of a vehicle maintenance cart when tires are detached from a vehicle, FIG. 4 (b) is an explanatory view showing a state in which tires are housed in a broken line vehicle maintenance cart, and FIG. It is explanatory drawing which shows the working state of the underbody part of a vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle maintenance trolley 2 Tire 3 Tire lift device 4 Tire support mechanism 5 Tire maintenance tool 6 trolley body 20 Multi-stage air cylinder 22 Holding roller 26 Slide guide 31 Washing work tray

Claims (6)

[Claims] 1. A work cart that can run on a floor surface and has a tire maintenance tool mounted thereon, comprising: a tire lift means capable of vertically moving a tire up and down; and a tire provided above the tire lift means. A tire supporting member for supporting the tire, when the tire is lifted by the tire lift means, the tire is positioned above the bogie main body, and when the tire is lowered by the tire lift means, the tire can be housed inside the bogie. A bogie for vehicle maintenance, characterized in that: 2. The vehicle maintenance vehicle according to claim 1, wherein a washing operation tray is provided on the vehicle. 3. The washing work tray is arranged on the side of a non-operator during a tire attaching / detaching operation, and is arranged above the tire when the tire is housed in a bogie. The vehicle maintenance vehicle according to claim 2. 4. The tire lift means is provided at a substantially central portion of a bottom portion 8 of the cart in plan view, and the washing work tray is provided on a side opposite to the worker of the cart, and the cart is provided by a slide means. The vehicle according to claim 2 or 3, wherein the tire maintenance tool is movably disposed on an upper side, and the tire maintenance tool is mounted on a worker side and a side surface of a bogie adjacent to the worker side with respect to the tire lift means. Maintenance trolley. 5. The vehicle maintenance vehicle according to claim 2, wherein the vehicle includes a recovery tank for recovering waste liquid used for a cleaning operation. . 6. The vehicle maintenance vehicle according to claim 1, wherein the tire lift means comprises a tire lift device using an air cylinder. .