JPH05213588A - Vehicular jack-up device and vehicle jack-up position indicating device - Google Patents

Abstract

PURPOSE:To facilitate the alignment of a lift so as to improve work performance. CONSTITUTION:The optical beam irradiation opening of a laser 34 fitted to a vehicle supporting part 28 is turned to the inner side face of one tire 22R in the vehicle width direction. Accordingly, when a lift is moved in the optical beam irradiated state, a spot 38 is irradiated on the inside of the tire 22R and moved along a single-dot chain line. When this spot 38 reaches on a line connecting the axis of an axle 26 to the contact point of the tire 22R with the floor surface of a pit 10, the position of a supporting block 30 and that of the axle 26 can be judged to be in accord. Two spots 38 may be placed on the chain line, and a contact may be protruded upward to allow the contact of a limit switch to be switched at the contact time with the axle. In addition, the axle photographed by a camera may be displayed on a monitor, and this monitor may be watched.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a lift that can move along the front-rear direction of a vehicle on the floor surface of a pit into which the vehicle is loaded, and the vehicle support portion of the lift is located at a position where the axle of the vehicle is suspended. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle jack-up device and a vehicle jack-up position indicating device used when aligning a vehicle.

[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 is movable along the front-rear direction of the vehicle, and the lift is aligned according to the vehicle to be carried in.

[0004]

However, in the alignment of the lift, the operator looks into the lower part of the vehicle while operating the remote controller for moving the lift, and the vehicle support portion which is considerably separated from the axle is set on the axle. It is aligned with the drooping position of.

Therefore, there is a problem that the burden on the operator is heavy and that the positioning work takes time. Further, if the lift is raised without being properly aligned, the position must be lowered again from the position close to the axle and the position must be adjusted again, further deteriorating workability.

In view of the above facts, it is an object of the present invention to provide a vehicle jack-up device and a vehicle jack-up position indicating device which can facilitate lift position alignment and improve workability.

[0007]

According to a first aspect of the present invention, there is provided a lift capable of moving along a front-rear direction of a vehicle on a floor surface of a pit into which the vehicle is loaded, and a rear wheel axle of the vehicle. In order to align the drooping position with the vehicle support portion of the lift, an axle detecting means for detecting the position of the rear wheel axle is provided.

According to a second aspect of the present invention, there is provided a lift capable of moving along the front-rear direction of the vehicle on the floor surface of the pit into which the vehicle is carried, and the vehicle support of the lift is provided at the position where the axle of the vehicle is suspended. A jack-up position indicating device for a vehicle, which is used when aligning parts, characterized in that it has a light source attached to the lift and irradiating a part of the vehicle with a light beam.

According to a third aspect of the present invention, there is provided a lift capable of moving along the front-rear direction of the vehicle on the floor surface of the 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. A jack-up position indicating device for a vehicle used when aligning parts, wherein the contactor is tilted by protruding upward from the lift and contacting each part including an axle of the vehicle when the lift moves, The contactor has a limit switch for switching the contact when the contactor contacts at least the axle and is tilted, and an informing unit for informing the switching state of the contact of the limit switch.

According to a fourth aspect of the present invention, there is provided a lift capable of moving along a front-rear direction of the vehicle on a floor surface of a pit into which the vehicle is loaded, and the vehicle support of the lift is provided at a position where the lift of the vehicle is drooping. A jack-up position indicating device for a vehicle, which is used when aligning parts, comprising a camera provided on the lift and capable of photographing the upper side, a monitor for displaying an image photographed by the camera, and a display of the monitor. And a graduation index that is evenly arranged along a direction perpendicular to the axis of the axle that is provided on the surface and is imaged.

[0011]

According to the first aspect of the present invention, the lift that moves in the front-rear direction of the vehicle is provided with axle detection means and moves with the lift. By detecting the rear wheel axle with the axle detecting means, the lift can be positioned at the position where the rear wheel axle depends. By raising and lowering the lift at this position, the axle can be reliably supported, and stable jack-up work can be performed.

According to the invention described in claim 2, when the lift moves, the light beam emitted from the light source also moves. For example, if the irradiation position of this light beam is inside the tire,
The operator can visually inspect the inside of the tire by only bending down slightly from the side of the vehicle opposite to the tire. When the light beam emitted to the inside of the tire reaches the line connecting the axis of the axle and the point of contact with the pit floor surface of the tire, it can be determined that the lift has been aligned to the proper position, and jack-up work is performed.

[0013] With this configuration, the alignment work is much simpler than the alignment of the axle and the vehicle support portion of the lift with a considerable distance, and the burden on the operator is small, so that workability is improved. Is improved.

Alternatively, the light beam may be emitted upward so as to directly hit the axle. In this case, the alignment accuracy is further improved.

According to the third aspect of the present invention, the contact is projected upward from the lift. When the vehicle is carried into the pit, this contactor will come into contact with various parts such as the front part of the vehicle, but since this contactor can be tilted, it may be tilted and damaged depending on the shape of the vehicle. Absent.

When the contactor comes into contact with the axle during the positioning movement of the lift, it is pushed by the axle and tilts. If the contact of the limit switch is switched when the vehicle is tilted by this axle, and if the notification means is used to display, for example, a lamp or the like on the vehicle support part, the axle and the lift of the axle can be lifted even if the operator does not look directly into the vehicle. It can be recognized that the vehicle support is aligned.

According to the fourth aspect of the present invention, the axle is photographed by the camera attached to the lift. At this time, the axle displayed on the monitor moves in the direction perpendicular to the axis. If a scale index is attached along the moving direction, it is possible to determine the deviation between the axle and the tire supporting portion of the vehicle, and the alignment becomes easy.

[0018]

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

The pit 10 is 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.

As shown in FIG. 2, a three-column movable lift 1
Reference numeral 4 denotes three lifts 16A, 18A, 20A and an elevator (elevator 18 corresponding to the lifts 16A, 18A) for raising and lowering these lifts 16A, 18A, 20A, respectively.
B and 20B only).

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

Further, as shown in FIG. 2, the remaining lifts 18A and 20A can be moved horizontally (along 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 wheelbase 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, the lifts 18A, 20
A vehicle support portion 28 is provided at the upper end of A. The vehicle support portion 28 has a rectangular shape, and a vertical wall portion 28A is formed on the peripheral edge thereof, and support blocks 30 are accommodated at both ends of the short side (the vehicle width direction) (only one side is shown). ..
The lift 16A has the same structure (see FIG. 1).

The support block 30 has a substantially V-shaped notch 32 at the upper end thereof. Where the lift 18
When A and 20A rise, the axle 26 of the rear tire 22R of the TB vehicle 12 is inserted into and supported by the notch 32. If the axle 26 and the support block 30 are not aligned with each other, the axle 26 cannot be reliably supported by the support block 30. Therefore, in the present embodiment, a laser 34 as an instruction device for alignment is arranged on the vehicle support portion 28.

The laser 34 is attached to the vehicle support portion 28 via a bracket 36. The light beam irradiation port of the laser 34 is used for the tire 2 on one side in the width direction of the TB vehicle 12.
It is directed to the inner surface of 2R. For this reason, as shown in FIG. 4, the lifts 18A and 20A are irradiated with the light beam.
Is moved, the spot 38 inside the tire 22R
Is irradiated and is moved along the alternate long and short dash line in FIG.

A line connecting the axis of the axle 26 and the contact point of the tire 22R with the floor surface of the pit 10 (the tire center line C).
When this spot 38 (see the solid line in FIG. 4) reaches L), it can be determined that the positions of the support block 30 and the axle 26 match.

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.

At this time, if the laser 34 is kept in the irradiation state, the spot 38 of the light beam emitted from the laser 34 moves along the alternate long and short dash line so as to include the inside of the tire 22R, as shown in FIG. To do.

The movement locus of the spot 38 is the tire 2
Since it intersects with the center line CL of the tire 22, the operator looks into the side of the TB vehicle 12 on the side opposite to the side where the tire 22R is attached, and the spot 38 coincides with the center line CL of the tire 22R (see FIG. (See the solid line in 4).

When the spot 38 coincides with the center line CL of the tire 22R, it can be judged that the alignment between the support block 30 and the axle 26 has been properly completed, and the TB vehicle 12
Is driven up by driving the elevators 16B, 18B, 20B.

According to the present embodiment, the light beam spot 38 is irradiated to the inside of the tire 22R and the alignment of the support block 30 and the axle 26 is confirmed by visually observing the spot 38. Compared with the case where a person directly visually positions the support block 30 and the axle 26 with a considerable distance, the workability is remarkably improved. Further, since it is only necessary to look inside the tire 22, the amount of bending over of the operator is reduced.

In this embodiment, the laser 34 is single and the moving spot 38 is one point. However, as shown in FIG. 5, the spot 38 is two points and the center line CL of the tire 22R. You may make it judge that the time when the space dimensions match each other is a proper alignment point between the support block 30 and the axle 26. [Second Embodiment] A second embodiment of the present invention will be described below.
In the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description of the configuration will be omitted.

As shown in FIG. 6, a limit switch 40 is attached to the vehicle support portion 28, and the limit switch 4
The contactor 42 is projected from 0 upward. The tip of the contact 42 can contact the axle 26 of the tire 22R, and when contacted with the axle 26, the tip of the contact 42 is tilted by a predetermined amount.

In the limit switch 40, the contacts are switched by tilting by a predetermined amount, and the indicator lamp 44 provided on the vehicle support portion 28 is turned on when the contacts are switched.

As shown by the imaginary line in FIG. 6, the contactor 42 is rotatable within a relatively large angle range, and will not be damaged even if it abuts on a portion other than the axle 26. It is like this.

The operation of the second embodiment will be described below. TB
When the vehicle 12 is carried in, the contacts 42 are brought into contact with the respective parts of the TB vehicle 12, but are tilted accordingly (see the imaginary line in FIG. 6), so there is no damage or the like.

When the contact 42 reaches the vicinity of the axle 26, the display lamp 44 is monitored. Here, when the contactor 42 contacts the axle 26 and is tilted by a predetermined amount, the display lamp 44
Is lit, and it can be confirmed that the support block 30 is aligned with the axle 26.

According to the second embodiment, the support block 30 and the axle 26 are not required to look into the lower portion of the TB vehicle 12.
Since it is possible to confirm that the positions of and are in the proper positions, the burden on the operator is reduced. [Third Embodiment] The third embodiment of the present invention will be described below.
In the third embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description of the configuration will be omitted.

As shown in FIG. 7, a camera 46 is attached to the vehicle support portion 28. With this camera 46, the upper part, that is, the axle 26 can be photographed.

On the other hand, as shown in FIG.
A monitor 50 is provided in the remote controller 48 that operates the vertical movement and horizontal movement of A, 18A, and 20A (FIG. 1).

Further, below the monitor 50, an operating section 52 for moving the lifts 16A, 18A and 20A (FIG. 1) up and down and horizontally is provided.

The image taken by the camera 46 is displayed on the monitor 50. A scale 52 is provided on the surface of the monitor 50. The main line of the scale 52 is provided along the direction perpendicular to the axis of the axle 26 to be projected, and is evenly allocated for each unit (for example, for every 10 mm). The reference line 5 parallel to the axis of the axle 26
4 is added, and when the reference line 54 and the axis line of the axle 26 coincide with each other, the support block 30 and the axle 26 are properly attached.
It has been aligned with.

The operation of the third embodiment will be described below. The lower portion of the TB vehicle 12 is displayed on the monitor 50 according to the movement of the vehicle support portion 28. If the axis line of the axle 26 and the reference line 54 do not coincide with each other in the projected image, the positional deviation amount can be recognized by looking at the unit scale. Therefore, the worker is
It is possible to easily confirm whether to move left or right.

When the axis line of the axle 26 projected on the monitor 50 coincides with the reference line 54, it is judged that the support block 30 coincides with the axle 26, and the horizontal movement operation is stopped.

As described above, it is not necessary to look into the lower portion of the TB vehicle 12, and it is possible to determine how much the vehicle support 28 should be moved to the left or right by simply monitoring the monitor 50. The workability of aligning the lifts 18A and 20A, which can reduce the burden on the operator, can be improved.

[0048]

As described above, the vehicle jack-up device and the vehicle jack-up position indicating device according to the present invention have an excellent effect that the lift can be easily positioned 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 the present embodiment.

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

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

FIG. 4 is a front view showing a movement locus of a spot irradiated on the inside of a tire.

FIG. 5 is a front view showing a locus of movement of the spot when the number of spots is two, showing a modification of the first embodiment.

FIG. 6 is a front view showing a relationship between a limit switch and an axle according to a second embodiment of the present invention.

FIG. 7 is a perspective view of the vicinity of a vehicle support portion according to a third embodiment of the present invention.

FIG. 8 is a front view of a remote controller according to a third embodiment.

[Explanation of symbols]

 10 Pits 12 TB Vehicles 14 Lifts 22R Tires 24 Rail Members 26 Axles 28 Vehicle Supports 30 Support Blocks 34 Lasers (Light Sources) 38 Spots 40 Limit Switches 42 Contacts 44 Indicator Lamps (Informing Means) 46 Cameras 50 Monitors 52 Scales

Claims (4)

[Claims] 1. A lift capable of moving along a front-rear direction of the vehicle on a floor surface of a pit into which the vehicle is loaded, and aligns a drooping position of a rear wheel axle of the vehicle and a vehicle support portion of the lift. Therefore, a vehicle jack-up device having an axle detecting means for detecting the position of the rear wheel axle. 2. A lift capable of moving along a front-rear direction of the vehicle on a floor surface of a pit into which the vehicle is loaded, and when aligning a vehicle support portion of the lift with a hanging position of an axle of the vehicle. A jack up position indicating device for a vehicle used, comprising a light source attached to the lift and irradiating a part of the vehicle with a light beam. 3. A lift capable of moving along a front-rear direction of the vehicle on a floor surface of a pit into which the vehicle is loaded, and when aligning a vehicle support portion of the lift with a hanging position of an axle of the vehicle. A jack-up position indicating device for a vehicle used, wherein the contactor is projected upward from the lift and is tilted by contacting each part including an axle of the vehicle when the lift is moved, and the contactor is at least the axle. A jack-up position indicating device for a vehicle, comprising: a limit switch for switching a contact when the contact switch is tilted; and a notifying unit for notifying a switching state of a contact of the limit switch. 4. A lift capable of moving along the front-rear direction of the vehicle on the floor surface of a pit into which the vehicle is loaded, and when aligning a vehicle support portion of the lift with a hanging position of an axle of the vehicle. A jack-up position indicating device for a vehicle used, comprising a camera provided on the lift and capable of photographing the upper part, a monitor for displaying an image photographed by the camera, and a monitor provided on a display surface of the monitor for photographing. A jack-up position indicating device for a vehicle, comprising: a scale index that is evenly distributed along a direction perpendicular to the axis of the axle.