JPS62218224A - Battery drawing device for reach type fork-lift track - Google Patents

Abstract

PURPOSE:To aim at improving the efficiency of service work for a battery, by making lock releasing operation for the body side of a battery stand and connecting operation to the mast side performable at a driver's seat at the time of drawing out a battery. CONSTITUTION:When a battery case 8 is drawn out of a housing space 10, first a mast 4 is moved up to the rear end, while a mast carriage 6 is slipped into the underside of a battery stand 7, and a drawer pin 11 is engaged with a hook 12. Under this state, when an operating pedal 23 is operated downward, a rock arm 19 is rotated against a spring 22 via a rod 16 and a lever 27, and an engaged piece 17 is separated from a hook type engaged part 17a. In addition, the hook 12 released from restraint by the rock arm 19 is rotated by a spring 14, and the engaged part 12a is engaged with the drawer pin 11 on the mast carriage 6. Therefore, when the mast 4 is advanced forward in this state left intact, the battery stand 7 comes to be drawn out on a guide rail 3 in consequence.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for pulling out a battery from a storage section of a reach type forklift I, X for service work such as maintenance and inspection. This invention relates to a Jf9 type drawer device that uses the reaching motion of the mast to draw out the bow of the first bow.

(Prior Art) Conventionally, as this type of battery drawer device, the one shown in FIG. 7 is generally known. this is,
A substantially central portion of a lock arm 41 is attached to the lower front surface of the battery case 40 via a pin 42 so as to be movable up and down, and one end of the lock arm 41 can be engaged with and detached from a protrusion 44 protruding from the upper surface of the leg 43. lock piece 4
5 and a locking piece 48 projecting downward at the other end, which is removable from a locking hole 47 formed in the mast carriage 46, and the battery is normally placed on the front side of the vehicle body 49. When the battery is stored in the formed battery storage space 50, the lock piece 45 of the lock arm 41 is engaged with the protrusion 44, thereby locking the battery.

When servicing the battery, the operator moves the mast 51 to the rear end and then
1 by rotating the lock piece 45 to the protrusion 44.
While detaching from the ridge 46, keep the locking piece 48 closed.
Connect the battery to the reach leg 4 by inserting it into the locking hole 47 of the reach leg 4 and connecting it to the mast side, and then moving the mast forward.
3 It is designed to be pulled out by sliding the top. After the service work is completed, the mast 51 is moved backward to pull the battery into the battery storage space 50 and stored therein, and then the lock arm 41 is rotated again to remove the battery from the mast 51.
1 and locks onto the reach leg 43.

(Problems to be Solved by the Invention) However, as described above, the conventional drawer device requires the operator to switch the lock arm 41, that is, to lock and release the lock on the vehicle body side, both when and after the battery is pulled out. , which requires operations to connect and disconnect from the mast side. Therefore, when servicing the battery, the operator has to go back and forth between the driving history and the front of the battery case several times as preliminary work, which is a hassle. Furthermore, when releasing the lock arm 41 after the retraction is completed, the mast 51 strongly presses the locking piece 48, so that the locking piece 48 is moved inside the locking hole 47 by operating the control lever. There is a problem in that the locking piece 48 cannot be removed properly unless it is adjusted so that it is loosened, and furthermore, in normal working conditions (the battery is stored and the mast 51 moves freely back and forth). If the lock arm 41 is erroneously moved in the direction of entering the locking hole 47, the mast carriage 46 will collide with the tip of the locking piece 48 when the mast 51 returns, damaging it.

In view of the above problems, the present invention makes it possible to perform the unlocking operation of the battery stand on the vehicle body side and the operation of connecting it to the mast side from the driver's seat when pulling out the battery. The object of the present invention is to provide a battery extraction device for a reach type forklift that can automatically disconnect the forklift from the mast side and lock it to the vehicle body side.

(Means for solving the problem) The technical means for solving the above problem consists of a pull-out pin attached to the mast carriage, a pull-out pin that is rotatably attached to the battery stand, and a front end that is detachable from the pull-out pin. A hook provided with a locking portion and always biased by a spring member in the locking direction with respect to the pull-out pin, a locking piece protruding from the rear side of the battery stand, and a hook that can be locked to and detached from the locking piece. It consists of a lock arm rotatably mounted on the frame and always biased in the locking direction by a spring member, and an operating member that can operate this lock arm from the driver's seat. The biasing force is set to overcome the biasing force of the spring member for the hook, and the rear end of the hook is arranged so as to overlap the locking portion of the locking piece in the plane direction, and the rear end When the lock arm is engaged with the locking piece, the lock arm is pushed to move the hook away from the pull-out pin, and the locking piece is further provided with a locking mechanism that locks when the battery is pulled in. This is because an inclined surface is formed to push the arm away and temporarily rotate it.

(Operation) When pulling out the battery stored in the battery storage space of the vehicle body, from the driver's seat, move the mast to the rear end and then operate the operating member to release the lock arm from the locking piece. When released, the hook is engaged with the pull-out pin by the action of the spring member, and the battery stand is connected to the mast. Therefore, if the mast is moved forward in this state, the battery stand will be pulled out along the reach leg.

Further, the battery is pulled into the battery storage space by moving mass 1- backward, but when the mast approaches the backward movement end, the locking piece pushes the lock arm away by the sloped surface of the rear end, and then moves backward. When the lock arm reaches the end, it comes off the inclined surface and is locked to the locking piece by the biasing force of the spring member. That is, the battery stand is automatically locked. Further, at this time, the lock arm pushes the rear end of the hook to rotate the hook and separate it from the pull-out pin, so that the connection between the battery stand and the mast is severed. Therefore, in this state, the normal reach operation of the mast becomes impossible.

(Example) Hereinafter, an example of the present invention will be specifically described based on the drawings. In the figure, 1 is a car body, 2 is a pair of reach legs extending from the car body 1 to the bamboo sword, and 3 is a guide rail with a groove-shaped cross section formed on the inner surface of the reach leg 2. A pair of left and right masts 4 are moved forward and backward by a reach cylinder (not shown), and their lower ends are connected to each other by a mast carriage 6 movably attached to the guide rail 3 via rollers 5. Reference numeral 7 denotes a battery stand on which a battery case 8 containing a battery is mounted, and is placed on the upper surface of the guide rail 3 through rollers 9 provided on the lower surface so as to be movable back and forth, and is always placed on the upper surface of the guide rail 3. The battery is stored in a battery storage space 10 formed at the lower front surface.

The mast carriage 6 is designed to slip into the lower surface of the battery stand 7 when the mast 4 moves to the rear end.

Next, the battery extraction device will be explained. On the lower surface of the battery stand 7 approximately halfway in the left-right direction,
A hook 12 that can be engaged with and detached from a battery pull-out pin 11 protruding from the upper surface of an approximately intermediate portion in the left-right direction of the mast carriage 6, and a lock plate 16 that is detachable from a lock arm 19 provided on the frame side of the vehicle body 1. are arranged in a polymerized manner. The hook 12 is horizontally rotatably attached to the battery stand 7 via a pin 13 at an approximately intermediate portion in the front and back direction, and the pull-out pin 1 is attached to the front portion.
A piece-shaped locking portion 12a that can be engaged with and disengaged from the holder 1 is formed, and an inclined surface 12b is formed roughly at the front end. Further, the hook 12 has one end hooked to the hook 12, and the other end hooked to the spring member 16a of the lock plate 16.
4 in the direction of engagement with the pull-out pin 11, and the end of rotation in the same direction is restricted by a stopper 15 attached to the flange portion 16a.

On the other hand, the front side of the lock plate 16 is formed in a groove shape, and the upper end of the flange portion 16a is fixed to the battery stand 7 while the lock plate 16 is disposed so as to cover the rear side of the hook 12 by this groove-shaped portion. . A flat plate-shaped locking piece 17 having a piece-shaped locking portion 17a is integrally formed on the rear side of the lock plate 16, and this locking piece 17 projects from the rear end of the battery stand 7. Note that the rear end surface of the hook-shaped locking portion 17a of the locking piece 16 is formed into an inclined surface. Further, the rear end portion of the hook 12 projects rearward from the rear end surface of the battery stand 7, and this projecting end overlaps with the hook-shaped locking portion 17a of the locking piece 17.

On the vehicle body 1 side, a lock arm 19 is provided on the back side of a frame 18 that partitions the battery storage space 10 and a space for accommodating various devices,
The frame 18 is located near the location of this lock arm 19.
has an opening 18a into which the locking piece 17 and the rear end of the hook 12 can enter when the battery stand 7 is stored in the battery storage space 10. When the battery stand 7 is stored in the battery storage space 10, the lock arm 19 locks the battery stand 7 by locking with the locking piece 17 inserted from the opening 18a.
It acts to lock the hook 12 in the battery storage space 10 and to separate the hook 12 from the pull-out pin 11, and is attached to the frame 18 via a pin 20 so as to be rotatable left and right. Further, the lock arm 19 is always urged in the locking direction with respect to the locking piece 17 by a spring member 22 whose one end is hooked to the lock arm 19 and the other end is hooked to the bottom plate 21. The spring force of 22 is set larger than the spring force of the hook biasing spring member 14.

Operation pedal 23 for operating the lock arm 19
As shown in FIG. 4, the frame 18 is attached via a pin 24 to the upper part of the back surface of the frame 18 so as to be movable up and down, and one end thereof passes through the side plate 25 so that it can be used in a seated format (a standing format is also acceptable). It protrudes from the footwell of the driver's seat so that it can be stepped on, and the other end is connected to the lock arm 19 via an interlocking lever 26 and an interlocking lever 26 with a turnbuckle. In addition, 28 is a stopper that restricts the rotation range of the operating pedal 23, that is, the rotation range of the lock arm 19, and 29 is a rubber protrusion for retracting the battery stand installed on both left and right sides of the mast carriage 6. It is.

This embodiment is constructed as described above, and its operation will be explained below.

FIG. 2 shows a state in which the battery is stored in the battery storage space 10. As shown in FIG. In this case, the lock arm 19 is activated by the biasing force of the spring member 22 to the hook-shaped locking portion 1 of the locking piece 17.
7a and abuts against the sharp end of the hook 12, causing the hook 12 to overcome the spring member 14 and pull out the pull-out pin 1.
1 in the direction of dissociation. That is, the battery stand 7 is locked in the storage position, and the hook 12 for pulling out the battery is held in the retracted position. Therefore, in this state, the reaching motion of the mast 4 can be carried out within the specified stroke range without any trouble.

Battery storage space 1 for storing batteries for service work.
If the mast 4 cannot be pulled out from 0, first move the mast 4 to the rear end, and the mast carriage 6 will slip under the underside of the battery stand 7 as shown in FIG.
is set at a position where it can engage with the hook 12. In this state, when the operating pedal 3 is depressed in the direction of the arrow shown in FIGS. 1 and 4, the lock arm 19 is rotated against the spring member 24 via the interlock rod 26 and the interlock lever 27, and the lock arm 19 is rotated against the spring member 24. 1
7 is released from the hook-shaped locking portion 17a. That is, the battery stand 7 is unlocked. At this time, the hook 12 released from the lock arm 19 is rotated by the spring member 14, and the locking part 12 is engaged with the pull-out pin 11 on the mast carriage 6, so that the battery stand 7 and the mast 4 are connected. Therefore, if the mast 4 is moved forward in this state, the battery stand 7 will be pulled out on the guide rail 3 of the reach leg 2 via the rollers 9, so that the operator can carry out service work such as maintenance and inspection of the battery in this state. (See Figure 3).

Note that when pulling out the battery, the operator must
If the operating pedal 23 is accidentally depressed before the pull-out pin 11 is pulled in, the lock arm 19 will disengage from the locking piece 17 and release the lock, and at the same time the hook 12 will rotate along the line of movement of the pull-out pin 11. , in this embodiment, hook 1 is used as shown in the figure.
Since the front end of the hook 1 is formed with an inclined surface 12b, the hook 1 comes into contact with this inclined surface 12b when the pull-out pin 11 moves backward.
Since the pull-out pin 11 moves while pushing away the pull-out pin 11 and the pull-out pin 12, the engagement between the pull-out pin 11 and the hook 12 is carried out without any problem.

After the battery service work is completed, when the mast 4 is moved backward, the battery stand 7 is pulled into its original position, that is, into the battery storage space 10 by the protrusions 29 on both the left and right sides of the mast main 11 ridge 4, and the locking piece 17 and the hook are removed. The rear end enters the rear side of the frame 18 through the opening 18a, but at this time, the locking piece 17 starts to enter as shown by the imaginary line in FIG. It enters while being pushed away against the member 22, and when the inclined surface 17b passes the lock arm 19, the lock arm 19 is locked by the hook-shaped locking portion 17a. Of course, the lock arm 19 is automatically locked to the locking piece 17 even if the operating pedal 23 is not depressed. Then, this sharpening lock arm 19 is detached from the pull-out pin 11 by pushing the rear end of the hook and rotating the seven hooks 12 against the spring member 14, so that the mast 4 and the battery stand 7 are separated. Then, the battery is stored in the battery storage space 10.

In this embodiment, the push-in action of the battery stand 7 is performed by the rubber protrusion 29, but the hook 12
This can be omitted by substituting .

(Effects of the Invention) As detailed above, according to the present invention, when pulling out the battery, each operation of unlocking the battery from the frame, connecting it to the mast, and pulling out by reaching the mast can be performed from the driver's seat. In addition, when storing the battery, simply by pulling the battery into the battery storage space using the mast, it can be automatically locked to the frame and disconnected from the mast, which is an important feature in improving the efficiency of battery service work. It is extremely effective.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the battery extraction device of the present invention, Fig. 2 is a plan view showing the battery when it is stored, Fig. 3 is a plan view without showing the battery being drawn out, and Fig. 4 is a perspective view of the vehicle body. FIG. 5 is a front view, FIG. 6 is a side view, and FIG. 7 is a perspective view of a conventional battery drawer. 1... Vehicle body 2... Reach leg 3.
... Guide rail 4 ... Mast 6 ... Mast carriage 7 ... Battery stand 10 ... Battery storage space 11 ... Pull-out pin 12 ... Hook 14 ... Spring member 16 ... Lock Plate 17... Locking piece 17b... Inclined surface
18... Frame 19... Lock arm 2
2...Spring member 23...Operation pedal

Claims (1)

[Claims] The drawer pin is attached to the mast carriage, and the battery stand is rotatably attached to the battery stand, and the front end has a locking part that can be engaged with and detached from the pullout pin, and is always attached by a spring member in the locking direction with respect to the pullout pin. a biased hook, a locking piece protruding from the rear side of the battery stand, and a locking piece that is rotatably provided on the frame so as to be able to engage and disengage from the locking piece, and is always attached in the locking direction by a spring member. The device comprises a biased lock arm and an operation member that can operate the lock arm from the driver's seat, and is set so that the biasing force of the spring member for the lock arm overcomes the biasing force of the spring member for the hook. On the other hand, the rear end portion of the hook is arranged so as to overlap the locking portion of the locking piece in a plane direction, and this rear end portion is connected to the lock arm when the lock arm locks with the locking piece. The locking piece is set so that the hook can be detached from the pull-out pin by pushing the lock arm, and the locking piece has a reach that has an inclined surface that pushes the lock arm away and temporarily rotates the lock arm when the battery is retracted. Forklift battery extraction device.