JPH06144792A - Width adjusting device for axle supporting part - Google Patents

Abstract

PURPOSE:To provide a width adjusting device for an axle supporting part for improving workability by facilitating the positioning of the axle supporting part. CONSTITUTION:Pedestrals 30 are housed on a frame 28 to support an axle. The pedestals 30 are axially moved along the frame 28. A pair of vertical wall parts 28A are interposed with hydraulic cylinders 34, respectively. Rods 34B are secured to the pedestals 30. Thus, the pedestals 30 are moved in the direction to be housed on the frame 28 when the rods 34B are withdrawn due to the actuation of the hydraulic cylinders 34 and are moved in the direction projected from the frame 28 when tire rods 34B are extended. A control part is connected to a remote controller and is provided with an operating button for turning on and off an electromagnetic valve for actuating each hydraulic cylinder 34 mounted on each pedestal 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises an elevating lift capable of moving along the front-rear direction of a vehicle on the floor surface of a pit into which the vehicle is carried, and the vehicle support of the lift is provided at a position where the axle of the vehicle is suspended. The present invention relates to a width adjusting device for an axle support part that aligns parts.

[0002]

2. Description of the Related Art When a tire, such as a truck or a bus (collectively referred to as a TB vehicle hereinafter) is flatly repaired, a tire is replaced with a new tire, or a tire is attached or detached for rotation, the TB vehicle is jacked up. Normally, this jack-up is carried out with the vehicle frame and other parts supported, but in the case of tire installation and removal work, the vehicle support part of the lift should be aligned with the axle to prevent the lift from moving up and down. I have to.

By the way, the wheelbase of a TB vehicle is
Since it varies depending on the vehicle type, the lift can be moved along the front-rear direction of the vehicle, and the lift is aligned according to the vehicle to be loaded.

A pedestal for supporting the axle is provided at the upper end of the lift, and a pair of pedestals for directly supporting the axle are accommodated in the pedestal. The pedestal is provided with a tapered notch at the upper end to support the axle.

The support position of the axle differs depending on the size of the vehicle and the stop position of the vehicle. Also, the rear wheels need to be positioned so that they do not interfere with the differential gearbox. For this reason, the pedestal can be moved in the axial direction with respect to the gantry, and the operator hooks the pedestal from the side of the vehicle with a long hook rod to position the pedestal at an appropriate position. I am trying to move it.

[0006]

However, in the positioning of the pedestal, the operator operates the catch rod while looking into the bottom of the vehicle and adjusts the positions of the left and right pedestals. Therefore, there is a problem that the burden on the operator is large and that the alignment work takes time.

In view of the above facts, it is an object of the present invention to obtain an axle support width adjusting device which facilitates the alignment of the axle support and improves workability.

[0008]

According to the invention as set forth in claim 1, when the vehicle is lifted and lowered by the lifting lift arranged on the floor surface of the pit into which the vehicle is loaded, the axle of the vehicle is A width adjusting device for an axle supporting portion which supports, a pedestal attached to an upper end of the lifting lift, a pair of pedestals housed in the pedestal and supporting an axle of the vehicle, and the pair of pedestals. It has moving means for moving in the axial direction of the axle with respect to the gantry, and remote operating means for operating the moving means by remote operation.

According to a second aspect of the invention, when the vehicle is lifted and lowered by an elevator lift arranged on the floor surface of the pit into which the vehicle is loaded, the width adjustment of the axle support portion that supports the axle of the vehicle is performed. An apparatus, comprising: a pedestal attached to an upper end of the lifting lift; a pair of pedestals housed in the pedestal and supporting an axle of the vehicle; and the pair of pedestals in an axial direction of the axle with respect to the gantry. Moving means for moving to, and remote operating means for actuating the moving means by remote operation to actuate the pair of pedestals uniformly in a direction of approaching and separating from each other,
have.

According to a third aspect of the present invention, when the vehicle is lifted and lowered by an elevating lift arranged on the floor of a pit into which the vehicle is loaded, the width adjustment of an axle support portion that supports the axle of the vehicle is performed. A device for displaying the difference between the center line of the vehicle displayed on the floor surface of the pit and carried into a predetermined position of the pit and the center line of the pit, and attached to the upper end of the lifting lift. Frame, a pair of pedestals housed in the frame and supporting an axle of the vehicle, a moving means for moving the pair of pedestals in the axial direction of the axle with respect to the frame, and the moving means by remote control. To operate the pair of pedestals evenly in a direction of approaching and separating from each other, input means for inputting an index value of the index portion provided in the remote operation means, and input by the input means. Based on the index value There have has a correction means for moving in the same direction which is operated and without changing the relative position of the pair of cradle said moving means.

[0011]

According to the invention described in claim 1, since the cradle can be moved in the axle direction with respect to the gantry by the operation of the moving means by remote operation of the remote control means, the work vehicle is cradleed. Need not be moved directly or via a hooking rod or the like, and it suffices to operate the remote control means while looking under the vehicle, thus improving workability.

According to the second aspect of the present invention, the pair of pedestals housed in the gantry move uniformly in the direction of approaching and separating from each other by the moving means. By aligning in position, the other can automatically align in position.

According to the third aspect of the invention, the vehicle carried into the pit is carried so that its center line in the traveling direction is aligned with the center line of the pit, but some errors may occur. Therefore, an index portion for indexing the above difference is attached to the floor surface, and the worker recognizes the difference by looking at this index.

Here, when the index value recognized by the input means is inputted, the correction means makes the pair of pedestals the same without changing their relative positions so that the center of the pair of pedestals coincides with the center of the vehicle. The vehicle moves in the direction and is positioned at the uniform distribution position based on the center of the vehicle. After that, by moving the cradle toward and away from each other by remote control means,
If one of the pedestals is positioned at the predetermined position, the other pedestal can be automatically positioned at the predetermined position.

[0015]

【Example】

[First Embodiment] FIG. 1 shows a tire attaching / detaching work area 10 (hereinafter, simply referred to as a pit 10).

The pit 10 is used as an area for tire installation / removal work of a large vehicle (TB vehicle) 12 such as a truck or a bus, and a three-column movable lift 14 is embedded in the central floor. The three-pillar movable lift 14 includes three lifts 16A, 18A, 20A and these lifts 16A, 1A.
8A and 20A lifting elevators respectively (in FIG. 2, lifts 18B and 2B corresponding to lifts 18A and 20A, respectively).
0B only).

As shown in FIG. 1, the lift 16A has a TB
The vehicle 12 is fixed to a position corresponding to the axle (axle) 23 of the tire 22F of the front wheels in a state where the vehicle 12 is loaded into the pit 10.

Further, as shown in FIG. 2, the remaining lifts 18A and 20A can be moved in the horizontal direction (direction of arrow A in FIG. 2) along with the elevators 18B and 20B along a rail member 24 by a driving means (not shown). It is said that. These lifts 18A and 20A are moved according to the two axles 26 of the tires 22 of the rear wheels of the TB vehicle 12, and are capable of corresponding to each other.

That is, since the wheel base of the TB vehicle 12 varies depending on the vehicle type, the lifts 18A, 2
This is dealt with by moving 0A.

By positioning the two lifts 18A and 20A at proper positions, the TB vehicle 12 can be safely lifted and lowered (in the direction of arrow B in FIG. 2).

As shown in FIG. 3, a pedestal 28 is provided at the upper ends of the lifts 18A and 20A. This stand 2
The reference numeral 8 is a substantially U-shape in which a pair of vertical wall portions 28A are formed from the sides along the axle direction, and the pedestals 30 are housed at both ends in the longitudinal direction inside thereof. The lift 16A has the same structure.

As shown in FIGS. 3 and 4, the pedestal 30
Is composed of a base 30A, a vertical wall 30B standing upright from the base 30A and parallel to each other, and an axle support portion 30C suspended between the vertical walls 30B. Here, when the lifts 18A and 20A rise, the axle 26 of the tire 22R of the rear wheel of the TB vehicle 12 shown in FIG. 2 is supported by the axle support portion 30C.

A guide plate 32 is provided on the side surface of the pedestal 30.
Is installed. The guide plate 32 corresponds to the inner side surface of the vertical wall portion 28A of the mount 28,
As a result, the pedestal 30 is guided by the guide plate 32 and can be smoothly moved in the axle direction along the gantry 28.

A hydraulic cylinder 34 is provided on each of the pair of vertical wall portions 28A of the gantry 28. Hydraulic cylinder 3
The rear end portion of the main body 34A of No. 4 is fixed to the bracket 36 which is erected from the vertical wall portion 28A. Also, the rod 34B
Is extended to the side of the pedestal 30, and its tip is fixed to a bracket 38 erected from the pedestal 30.

Therefore, when the rod 34B is retracted by the operation of the hydraulic cylinder 34, the pedestal 30 is guided by the guide plate 32 and is accommodated on the pedestal 28 shown by the arrow C in FIG. 3 (the other pedestal). 30). When the rod 34B extends, the pedestal 30
Is guided by the guide plate 32 and moved in a direction projected from the gantry 28 (a direction away from the other pedestal 30) shown by an arrow D in FIG.

The hydraulic cylinder 34 is controlled by a control unit 40 provided under the floor and shown in FIG. That is, the control unit 40 is connected to the hydraulic pump 42 and the electromagnetic valves 44 corresponding to the respective hydraulic cylinders 34, and opening and closing of the electromagnetic valves 44 adds to each of the separated chambers in the hydraulic cylinder 34. The pressurized oil is sent in to axially move the rod 34A.

As shown in FIG. 5, a remote controller 46 is connected to the control unit 40. The remote controller 46 is provided with operation buttons 46A for turning on and off the electromagnetic valves 44 for operating the hydraulic cylinders 34 attached to the respective pedestals 30, and the hydraulic cylinders 34 are independently operated by operating the operation buttons 46A. The rod 34A is expandable.

A schematic diagram 46B of a TB vehicle is drawn on the remote controller 46, and the cradle 30 is moved to a predetermined position by operating the operation button 46A corresponding to the line drawn from this schematic diagram. be able to.

The operation of the first embodiment will be described below. TB
The vehicle 12 is guided to the pit 10. After the tires 22F have been loaded into a predetermined position and the front wheel tire 22F has been aligned with the lift 16A, the lifts 18A and 20A are moved in the horizontal direction to be aligned with the wheel base of the loaded TB vehicle 12.

As a result, the position of the vehicle in the front-rear direction is fixed, but if the lengths of the axles 23 and 26 are different depending on the TB vehicle 12 or the position of the TB vehicle 12 to be carried in is shifted in the width direction, The support position by the pedestal 30 may not be the proper position. Therefore, the worker is the TB vehicle 12
It is necessary to look into the bottom and align the pedestal 30.

Here, for example, when the position of the pedestal 30 is too close to the inside of the TB vehicle 12, the pedestal 30 needs to be moved outward. Then, a predetermined operation button 46A of the remote controller 46 is operated. This operation button 46A is selected by the remote controller 4
Since a schematic diagram of the TB vehicle 12 is drawn on 6 and the position to be moved is indicated by the leader line, it can be easily selected.

When the selected operation button 46A is operated to the widening side, a signal is supplied to the control section 40, the solenoid valve 44 is operated, and the rod 34A of the hydraulic cylinder 34 is extended. As a result, the pedestal 30 can be moved along the guide plate 32 in the width increasing direction.

Therefore, the operator does not have to move the pedestal 30 directly or through a hooking rod or the like, and the TB vehicle 1
It suffices to operate the remote controller 46 while looking into the bottom of the 2, so that workability is improved.

[Second Embodiment] A second embodiment of the present invention will be described below with reference to FIG. In the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and the description of the configuration will be omitted.

Normally, the position supported by the cradle 30 of the TB vehicle is preferably a position evenly distributed from the center of the TB vehicle 12. Therefore, if the centers of the pair of pedestals 30 coincide with the center of the TB vehicle 12, the movement amount of one pedestal 30 and the movement amount of the other pedestal 30 are equal.

Therefore, in the remote controller 46,
Operation buttons 46 for operating each cradle 30 independently
In addition to A, an operation button 46C for moving the pair of pedestals 30 for the respective axles 23 and 26 at the same amount in the directions toward and away from each other is provided.

By operating the operation button 46C, the pair of pedestals 30 are moved by the same amount in the approaching / separating direction, so that the operator can see the position of one pedestal 30 and receive the pedestal 3
Only by moving 0, the positioning of the other pedestal 30 is completed, and the workability is further improved. In addition, although there are some TB vehicles 12 which are not appropriate in the center distribution position (for example, the mounting position of the differential gear is deviated from the center line of the TB vehicle 12, and this differential gear interferes with the pedestal 30). In that case, either one of them is independently moved by the operation button 46A,
You can make fine adjustments.

[Third Embodiment] A third embodiment of the present invention will be described below with reference to FIGS. 7 and 8. In the third embodiment, the same components as those of the first embodiment are designated by the same reference numerals as those of the first embodiment, and the description of the configuration will be omitted.

As shown in FIG. 7, a plurality of lines 48A, 48B, 48C are formed in the floor surface of the pit 10 near the left and right tire contact portions of the TB vehicle 12 along the carrying-in direction.
.. (hereinafter collectively referred to as line 48) is attached. Each line 48 is marked with a scale. This scale is the distance from the center line CL of the lifts 16A, 18A, 20A, and when the center line of the TB vehicle 12 is loaded so that the center line of the lifts 16A, 18A, 20A coincides with the tire ground contact. The scales on the left and right of the position will match.

However, if the center line TBC of the TB vehicle 12 is deviated from the center lines CL of the lifts 16A, 18A, 20A, the scales on the left and right of the tire ground contact position will be different, and the deviation amount of the TB vehicle 12 will be different. M can be recognized.

As shown in FIG. 8, the remote controller 46 is provided with a ten-key pad 46D for inputting this deviation amount. When an operator operates the ten-key pad 46D to input the deviation amount, this signal is sent. It is sent to the control unit 40. The control unit 40 moves the pair of pedestals 30 in the same direction according to the input shift amount. Thereby, the center line CL between the pair of pedestals 30 and the center line TB of the TB vehicle 12 are
L can be matched.

As described above, since the initial position of the pedestal 30 is adjusted to the center line of the TB vehicle 12 regardless of the carry-in position of the TB vehicle 12, the subsequent adjustment work becomes easy.

The remote controller 46 applied to the above-described embodiment is a so-called wire connected to the harness to the control section 40. However, the remote controller 46 is provided with a transmission section and a control section 40 with a reception section, and a wireless connection is provided. You may make it transmit by.

[0044]

As described above, the width adjusting device for an axle supporting portion according to the present invention has an excellent effect that the alignment of the axle supporting portion can be facilitated and the workability can be improved.

[Brief description of drawings]

FIG. 1 is a plan view of a work area for a tire attaching / detaching service work according to a first embodiment.

FIG. 2 is a side sectional view of a part of the three-pillar movable lift according to the first embodiment.

FIG. 3 is a perspective view of the vicinity of a vehicle support portion.

FIG. 4 is a side view of the vicinity of a vehicle support portion.

FIG. 5 is a control block diagram including a remote controller.

FIG. 6 is a control block diagram including a remote controller according to a second embodiment.

FIG. 7 is a plan view on a work area according to a third embodiment.

FIG. 8 is a control block diagram including a remote controller according to a third embodiment.

[Explanation of symbols]

 10 pit 12 TB vehicle 14 lift 23 axle (axle) 26 axle 28 mount 30 cradle 46 remote controller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuo Sato 1-10-1 Kyobashi, Chuo-ku, Tokyo Inside Bridgestone Corporation

Claims (3)

[Claims] 1. A width adjusting device for an axle support part for supporting an axle of the vehicle when the vehicle is elevated and lowered by an elevation lift arranged on a floor surface of a pit into which the vehicle is loaded. A gantry attached to the upper end of the lift, a pair of pedestals housed in the gantry and supporting an axle of the vehicle, and a moving unit that moves the pair of pedestals in the axial direction of the axle with respect to the gantry, A remote control means for operating the moving means by remote control, and a width adjusting device for an axle support part, comprising: 2. A width adjusting device for an axle support part for supporting an axle of the vehicle when the vehicle is elevated and lowered by an elevating lift arranged on a floor surface of a pit into which the vehicle is loaded. A gantry attached to the upper end of the lift, a pair of pedestals housed in the gantry and supporting an axle of the vehicle, and a moving unit that moves the pair of pedestals in the axial direction of the axle with respect to the gantry, A width adjusting device for an axle support part, comprising: a remote operating means for operating the moving means by remote operation to evenly operate the pair of pedestals toward and away from each other. 3. A width adjusting device for an axle support part for supporting an axle of the vehicle when the vehicle is raised and lowered by an elevator lift arranged on a floor surface of a pit into which the vehicle is loaded. An indicator portion that indicates the difference between the center line of the vehicle that is displayed on the floor surface of the pit and is brought into the predetermined position of the pit and the center line of the pit, a pedestal attached to the upper end of the lifting lift, and the pedestal A pair of pedestals that are housed to support the axles of the vehicle; a moving unit that moves the pair of pedestals in the axial direction of the axle with respect to the gantry; and a pair of receiving units that operate the moving unit by remote control. Remote operating means for operating the bases evenly in the direction of approaching and separating from each other, input means provided in the remote operating means for inputting an index value of the index section, and the above-mentioned based on the index value input by the input means transportation Actuates width adjusting device of the axle supporting portion having a correction means for moving the same direction and without changing the relative position of the pair of bearers.