JP2744898B2 - Slide lock mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide lock mechanism for holding a storage object such as a battery at a storage position.

[0002]

2. Description of the Related Art For example, in working at heights in a residential area,
Aerial vehicles equipped with an electric boom may be used to avoid noise during boom operation. In this type of aerial work vehicle, an electric motor is driven by a battery, and a hydraulic pump is driven by the motor. Each operation of the boom is performed by controlling the supply and discharge of the hydraulic oil supplied from the hydraulic pump by the valve control device.

[0003] This battery as a boom drive source is provided on the vehicle body in a configuration different from the vehicle battery used for starting the engine.
Because regular maintenance such as replacement is required,
It is housed in a battery housing space provided behind the lower rear wheel of the vehicle body for easy handling. Since the battery is supported and stored by the rollers attached to the lower surface of the battery on the rail provided at the bottom of the battery storage space, the battery can be easily pulled out of the vehicle body to the outside, and the maintenance of the battery can be easily performed. The configuration is easy to perform.

[0004]

However, when the aerial work vehicle is stopped on a slope and the holding member for holding the battery inside the vehicle body is removed, the battery slides unexpectedly and is discharged to the outside of the vehicle body. There's a problem. As described above, the battery is easily housed in the battery housing space, and has a considerable weight, so that it is discharged by its own weight when the vehicle body is inclined.

In order to prevent the battery from being accidentally released even when the holding member is removed, a bracket is conventionally provided on the side of the battery, and a safety means is provided for stopping the bracket and the bracket attached to the vehicle body through pins. I have. However, since this pin can be freely inserted and removed,
If the holding member is removed with the pin pulled out, exactly the same thing would occur as if no safety means were provided, and this is not a preferred means.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a slide lock mechanism that reliably locks and holds a storage object until a drawer is performed.

[0007]

SUMMARY OF THE INVENTION A slide lock mechanism of the present invention locks a storage object stored in a storage space so as to be slidable back and forth while the storage object is stored in the storage space. It comprises a receiving member, a holding member, a first bracket, a second bracket, and a lock pin with a flange.

The receiving member is formed so as to surround the left and right side surfaces and the rear surface in the storage space, and the holding member is formed so as to be attachable to the front opening of the receiving member. The flanged lock pin has a flange portion at an intermediate portion and is formed in a rod shape. The first bracket is provided on at least one of the left and right side walls of the receiving member so as to face the storage space, and includes two plate members facing each other at a predetermined interval in the vertical direction. In the upper plate member,
A concave portion having a smaller diameter than the flange portion is formed to open forward to receive the flanged lock pin, and a long hole is formed in the lower plate member before and after the flange lock pin can be inserted. The second bracket has a vertically extending lock hole into which a lock pin with a flange can be inserted, and is attached to a side surface of the storage object.

[0009]

According to the slide lock mechanism of the present invention, when the storage object is slid backward from the front opening of the receiving member into the storage space, that is, into the receiving member, the slide lock mechanism is attached to the side surface of the storage object. The second bracket moves below the first bracket. At this time, a lock pin with a flange is inserted into the lock hole of the second bracket from above through a long hole formed in the lower plate member of the first bracket. When the object to be stored is further slid in this state, the flange portion of the lock pin with a flange enters below the concave portion formed in the upper plate member of the first bracket, and the lock pin with the flange is received in the concave portion. The object is stored in the storage space, that is, in the receiving member. In this storage position, the storage object is fixedly held in the storage space by attaching the holding member to the front opening of the receiving member. In this state, the flanged lock pin cannot be pulled out because the flange portion is sandwiched between the concave portion of the first bracket and the long hole.

When the holding member is removed and the storage object is slid forward from the storage position, the locking pin with a flange abuts on the front end of the long hole of the first bracket. It will not slide forward beyond the allowed range. In a state where the flanged lock pin is in contact with the front end of the long hole of the first bracket, the flange portion of the flanged lock pin is disengaged from the concave portion of the first bracket, and the flanged lock pin can be pulled out upward. is there. At this time, only when the user wants to further slide the object to be stored forward, the worker pulls out the flanged lock pin upward.

[0011] Even if the holding member is removed, since the locking pin with the flange cannot be pulled out while the object to be stored is in the storage position, the slide lock mechanism of the present invention can reliably prevent accidental sliding. Function as a safety measure to prevent When the object to be stored is slidable by its own weight due to the inclination, the object to be stored is reliably prevented from being discharged out of the storage space.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows an aerial work vehicle 10 provided with the slide lock mechanism of the present invention. The aerial work vehicle 10 generally includes a vehicle body, a boom, and a workbench. The vehicle body mainly includes a self-propelled vehicle body 11 having driving wheels, a boom drive source such as an electric motor 21 and a hydraulic pump 22 mounted on the vehicle body 11 and a controller 24 for controlling boom operation. Outrigger jacks 18 are provided on the front, rear, left and right sides of the vehicle body 11 to extend and contact the ground to stably support the vehicle body 11 during work.
Is provided.

A swivel 12 is provided on the vehicle body 11, and the swivel 12 is rotatable by a hydraulic motor (not shown) provided inside the vehicle body 11. Further, a boom 13 is pivotally supported at the upper end of the swivel base 12 by a support shaft, and an up-and-down cylinder 15 is fixed to the boom 13 from the swivel base 12. The boom 13 can be freely raised and lowered by the raising and lowering cylinder 15. The boom 13 has a plurality of boom members assembled in a telescopic manner, and can be freely extended and retracted by an extendable cylinder (not shown) disposed in the boom.

A vertical post 16 is pivotally supported at the distal end of the distal boom member, and the vertical post 16 is always vertical to the ground by a leveling cylinder (not shown) regardless of the up / down state of the boom 13. Is kept. A work table 17 is attached to the vertical post 16 so as to be horizontally pivotable. Since the vertical post 16 is always kept vertical, the bottom of the worktable 17 is always kept horizontal with respect to the vehicle body 11, so that the operator who has boarded the worktable 17 can perform desired work comfortably.

When working at heights using the aerial work vehicle 10, the boom 13 is turned, raised and lowered, and extended, and the work table 17 on which the operator is mounted is moved to a desired height position. . These boom operations are performed by the operation of hydraulic actuators such as a hydraulic motor and a hydraulic cylinder. These hydraulic actuator operations depend on supply / discharge control of hydraulic oil supplied from a hydraulic pump 22 provided in the vehicle body 11. ing. The supply / discharge control of the hydraulic oil is performed by operating a control valve by the controller 24, and the hydraulic pump 22 that supplies the hydraulic oil is driven by the electric motor 21. The electric motor 21 uses a battery 31 provided at a rear portion of the vehicle body 11 as a power source.

As shown in FIG. 4, this battery 31
Rollers 33 are disposed on the lower surface, front, rear, left and right of the vehicle, and two concave rails 35 for receiving the rollers 33 are disposed at the bottom of a battery storage space provided at the rear of the vehicle body. ing. A battery exchange device 50 that facilitates the storage and removal of the battery 31 is used,
The rollers 33 are put in the rails 35, and the battery 31 is inserted into the battery storage space. The battery 31 thus housed in the vehicle body 31
5 and a rail 51 provided on the battery exchange device 50
The operator can pull out the vehicle body 11 in the left-right direction with respect to the vehicle body 11 and in the front-rear direction with respect to an operator who intends to perform maintenance. The maintenance work of the battery 31 arranged in this way is easy.

A handle 36 is provided on the front surface of the battery 31. When the operator grips and pulls the handle 36, the battery 31 is pulled out of the vehicle body 11. After the drawer, the mounting fixture 3 disposed on the side of the battery 31
By removing the cover 7, the protective cover 32 covering the upper part of the battery 31 is removed, and maintenance work such as replenishment or replacement of the battery fluid is performed. In order to lock and hold the battery 31 housed and pulled out in the front-rear direction as described above, the slide lock mechanism 40 of the present invention is provided in a housing space at the rear of the vehicle body where the battery 31 is housed.

Next, the slide lock mechanism 40 of the present invention will be described with reference to FIGS. As shown in FIG. 1, the slide lock mechanism 40 of the present invention includes a receiving member 41, a holding member 42, a first bracket 43, a second bracket 44, and a locking pin 45 with a flange.

The receiving member 41 includes the stored battery 31.
It is formed by bending a band-shaped flat plate into a substantially U-shape in order to press the left and right side surfaces and the rear surface. From the mounting relationship to the vehicle body 11 and the storage bracket 34, the receiving member 41
Is bent at a right angle to open further outward. In addition, through holes 41x are provided at both ends of the receiving member 41.
And 41y are provided with nuts mounted behind them.

The holding member 42 is used to close the front opening of the receiving member 41 in which the battery 31 is stored, and is bent from a flat plate having the same width as the band-shaped flat plate of the receiving member 41 into an L-shape. Formed. Holding member 4
2, two through holes 41x and 4
Through holes 42x and 42y are provided at positions overlapping 1y, respectively.

The flanged lock pin 45 comprises an elongated columnar pin portion 45a and a flange portion 45b provided at an intermediate portion. The upper end portion of the pin portion 45a is bent at a right angle to facilitate removal with a finger. I have.

The first bracket 43 includes an upper plate member 43a.
And the lower plate member 43b. The upper plate member 43a has approximately half the width in the front-rear direction as compared with the lower plate member 43b, and has an L-shaped cross section. The lower plate member 43b has a U-shaped cross section. It is bent into a shape. The first bracket 43
The upper plate member 43a is located above the rear portion of the lower plate member 43b.
The locking pin 45 is integrally formed in an E-shape in a rear view with an interval allowing the height of the flange portion 45b of the locking pin 45 with a flange. Further, the first bracket 43 includes the receiving member 41.
The opening of E is located at the upper part on the right side of the receiving member 41 and is formed integrally with the receiving member 41 so as to face inward.

At the front end of the upper plate member 43a of the first bracket, a U-shaped recess 43x for receiving the pin portion 45a of the flanged lock pin 45 is smaller than the diameter of the flange portion 45b of the flanged lock pin 45. It is formed with a diameter. The lower plate member 43b has a long hole 43y in the front-rear direction into which the pin portion 45a of the lock pin 45 with a flange is inserted. The concave portion 43x and the long hole 43y are formed concentrically in the left-right direction so as to receive one lock pin 45 with a flange.

The second bracket 44 is a bracket portion 44a formed by bending a band-like plate material into an L-shaped cross section.
And a pipe portion 44b which is passed through substantially the center of the horizontal portion of the bracket portion 44a. This pipe part 4
4b has an inner diameter large enough to insert the pin portion 45a of the locking pin 45 with a flange. Also, the bracket portion 44
A through hole for attaching the second bracket to the side surface of the battery 31 is provided in the vertical portion of a. As shown in FIG. 2, bolts are passed through the through holes, and tightened to a nut plate 46 welded to the battery 31, so that the second bracket 44 is fixed to the battery 31.

When the battery 31 is slid rearward into the receiving member 41 of the slide lock mechanism 40 of the present invention thus configured, the second bracket 44 attached to the side surface of the battery 31 It moves below the first bracket 43 disposed inward of the side surface of the first bracket 43. The second bracket 44 extends downward from the front end of the long hole 43y formed in the lower plate member 43b of the first bracket 43.
When the inner hole (lock hole) of the pipe portion 44b is located, the pin portion 45a of the flanged lock pin 45 is inserted into the inner hole of the pipe portion 44b from above through the elongated hole 43y. The flanged lock pin 45 has a flange portion 45b having an elongated hole 43y.
And the lower plate member 43 of the first bracket 43
b.

When the battery 31 is further slid backward after the flanged lock pin 45 is inserted, the flanged lock pin 45 moves in the elongated hole 43y with the movement of the second bracket 44 attached to the battery 31. Then, the upper pin portion 45a of the flanged lock pin 45 is received in the concave portion 43x of the upper plate member 43a of the first bracket 43, and the battery 31 is completely housed in the receiving member 41.
1 is determined. In this storage position, the flange portion 45 b of the flanged lock pin 45 is
Is located below the upper plate member 43a.

After the battery 31 is moved to the storage position, the holding member 42 is bolted to the front opening of the receiving member 41 so that the battery 31 is fixed in the storage space provided inside the vehicle body 11. Is done. In this state, since the flange portion 45b is sandwiched between the upper plate member 43a, ie, the concave portion 43x, and the lower plate member 43b, ie, the elongated hole 43y of the first bracket 43, the lock pin 45 with the flange is provided.
Cannot be extracted. As long as the holding member 42 is not removed, the battery 31 does not shift from the storage position, and the lock pin 45 with a flange cannot be pulled out. For this reason, there is no possibility that the flanged lock pin 45 is unnecessarily pulled out and lost, and the flanged lock pin 45 is reliably used as a safety means for preventing accidental sliding of the battery 31 when the holding member 42 is removed. Function.

When the battery 31 is pulled out in order to perform maintenance work on the battery 31, first, the battery replacement device 50 is arranged on the side of the vehicle body 31 and in front of the battery 31 in the drawing direction. Thereafter, the holding member 42 is removed, and the battery 31 is slid forward. As soon as the battery 31 is pulled forward, the pin portion 45a of the flanged lock pin 45 comes into contact with the front end portion of the long hole 43y of the first bracket 43. Therefore, the battery 31 does not slide forward beyond the allowable range of the long hole 43y.

However, when the pin portion 45a of the flanged lock pin 45 abuts on the front end portion of the long hole 43y, the flange portion 45b of the flanged lock pin 45 is disengaged from the recess 43x of the first bracket 43. The lock pin 45 with a flange can be pulled out upward. Therefore, only when it is intended to slide the battery 31 further forward, the operator need only pull out the locking pin 45 with the flange upward.

As described above, while the battery 31 is in the storage position, the flanged lock pin 45 cannot be pulled out, so that the battery 31 does not slide out of the vehicle body 11 just by removing the holding member 42. There is no. Further, the vehicle body 11
Is on an inclined ground, and the battery 31 slides under its own weight due to the holding member 42 being removed, the slide lock mechanism 40 of the present invention exceeds the allowable range of the long hole 43y provided in the first bracket 43. Thus, it is possible to reliably prevent the battery 31 from sliding forward. Only when the operator pulls out the battery 31 for maintenance work, the flanged lock pin 45
Is a slide lock mechanism from which is extracted.

In this embodiment, the present invention is applied to lock and hold the battery 31 of the aerial work vehicle.
The scope of application of the present invention is not limited to a high work vehicle, but can be widely applied as a slide lock mechanism to various industrial machines and the like. In the present embodiment, the second bracket 44 is connected to the lower plate member 4 of the first bracket 43.
3b, the height of the pipe portion of the second bracket is reduced, or the height of the first bracket is reduced.
If the distance between the upper plate member and the lower plate member of the bracket is increased, the second bracket functions similarly even if it is configured to move between the upper plate member and the lower plate member of the first bracket.

Further, in the embodiment, the flanged lock pin 45 is shown as having a flange portion 45b at an intermediate portion of the pin portion 45a, but in the present invention, the flanged lock pin is a bar-shaped rod having a step. As long as it is not limited to a cylindrical shape, it can function similarly. Furthermore, in the present embodiment, the receiving member 41 and the holding member 42 are formed of a band-shaped plate material, but may be formed in a box shape. Thus, it is apparent that further improvements, improvements, modifications, and the like can be made within the scope of the claims of the present invention.

[0033]

As described above, according to the slide lock mechanism of the present invention, when the storage object is slid into the storage space, that is, into the receiving member, the slide lock mechanism attached to the side surface of the storage object. The two brackets move below the first bracket. At this time, the lock pin with the flange is inserted into the lock hole of the second bracket through the elongated hole formed in the lower plate member of the first bracket. When the storage object is moved to the storage position, the flange portion of the lock pin with the flange is located below the concave portion formed in the upper plate member of the first bracket,
The lock pin with a collar cannot be pulled out as long as the object to be stored is at the storage position.

If the holding member is simply removed, the locking pin with a flange abuts on the front end of the long hole of the first bracket, so that the object to be stored exceeds the permissible range of the long hole and moves outside the storage space, that is, forward. There is no sliding. However, when the flanged lock pin is in contact with the front end of the long hole, the flange portion of the flanged lock pin is out of the concave portion of the first bracket, so that the flanged lock pin can be pulled out upward. is there. Only when it is desired to pull out the storage object forward, the operator only needs to pull out the flanged lock pin upward.

As described above, since the locking pin with the collar cannot be pulled out unless the holding member is removed, there is no danger that the locking pin with the collar is unnecessarily pulled out and lost, and that the locking pin is pulled out before the holding member is removed. Not even. Therefore, the lock pin with a flange reliably functions as a slide lock mechanism when the holding member is removed. Even if the holding member is removed, the storage object does not slide out of the storage space unless the locking pin with the flange is pulled out, so the slide lock mechanism of the present invention holds the storage object in a state where the storage object is inclined. This is a safety means for reliably preventing the storage object from being accidentally released to the outside of the storage space by its own weight when the member is removed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a slide lock mechanism of the present invention.

FIG. 2 is a partial front view of the slide lock mechanism.

FIG. 3 is an overall side view of an aerial work vehicle provided with the slide lock mechanism.

FIG. 4 is a perspective view showing a rear part of the aerial work vehicle and a battery mounted on a battery exchange device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 aerial work vehicle 11 body 12 turning table 13 boom 17 work table 31 battery 40 slide lock mechanism 43 first bracket 44 second bracket 45 lock pin with flange

Claims (1)

(57) [Claims] 1. A slide lock mechanism that locks and holds a storage object that is slid back and forth in a storage space and is stored and pulled out in the storage space, wherein a left and right side surface in the storage space is provided. And a receiving member that forms at least a part of each of the rear surface and stores and holds the storage object that is slid from the front opening into the storage space, and can be attached to the receiving member located at the front opening. A holding member that holds the object to be stored while being stored in the storage space; a first bracket provided on at least one of left and right side walls of the receiving member so as to face the storage space; A second bracket provided on a side surface of the object and vertically facing the first bracket at a storage position where the storage object is stored in the storage space; The first bracket has two plate members facing each other at a predetermined interval in the vertical direction, and the upper plate member receives the flanged lock pin. A recess having a diameter smaller than that of the flange portion and having a front opening is formed, a long hole is formed in the lower plate member before and after the lock pin with the flange can be inserted, and the flange is formed in the second bracket. A lock hole into which a lock pin is inserted is provided extending vertically, and the flanged lock pin inserted into the elongated hole and the lock hole has the flange portion in the storage position and the elongated hole. A slide lock mechanism wherein when the object to be stored is slid forward, the flange portion is disengaged from the recess so that the lock pin with the flange can be pulled out upward.