JPH1160183A - Weight attaching/detaching device for forklift truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate detaching/attaching work for a counter weight by integrally mounting a fixing guide to the counter and by engaging a groove of the fixing guide with a bar. SOLUTION: Positioning of a counter weight 9 in the longitudinal direction functions as guide so as to gradually adjust the counter weight 9 to a center, because end surfaces of the counter weight 9 are contacted with a plate 3 and a guide part provided on the back of a bracket 2, right and left sides of the bracket 2 are gradually lifted down in contact with a first guide surface 91 of the bracket 2, and therefore, the bracket 2 expands from its narrow upper part to its lower part. Then, the first guide surface 91 is delivered to a guide part between a pad 5 and a second guide surface 92 to raise accuracy for positioning lateral center, a triangular plate 4 contacts with a dog 93 formed on the right and left backs of an opening of the counter weight 9, and the counter weight 9 proceeds to longitudinally final position due to action of the triangular plate 4 and the dog 93 and becomes in a steady state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for facilitating attachment and detachment of a counterweight of a forklift truck.

[0002]

2. Description of the Related Art Depending on the transport conditions of a forklift,
In some cases, it is necessary to attach and detach the counterweight outside the factory. At that time, in the related art, it is a general method to perform the operation according to the work procedure in the assembly factory.

[0003]

However, when the above-mentioned conventional counterweights are detached and attached outside the factory, there are differences in the working conditions due to inadequate jigs and tools, the skill of workers, etc. Since the installation of the weight is an unexpectedly tedious operation, easiness in the attaching and detaching operations has been a problem along with work safety.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to address the above-mentioned problems, and is claimed in claim 1.
According to the invention described above, two planes of a first guide surface and a second guide surface and a dog are provided on the counterweight on the left and right inner sides of the opening, and a gate-shaped bracket is provided on the body frame with a head behind the driver's seat. Stand up along the guard post, attach the pads on the left and right behind it, and further attach a triangular plate after that, place a square bar-shaped bar at the end and arrange the fixed guide integrally with the counter weight by bolting The mounting and the groove portion of the fixed guide have a structure capable of fitting into the bar.

Therefore, the first guide surface provided inside the opening of the counterweight is used to lower from the top along the outer surface of the gate-shaped bracket attached to the vehicle body frame, so that the front, rear, left, and right sides can be obtained. Coarse positioning can be performed. Then, by guiding the pad mounted on the body frame and the second guide surface of the counterweight, positioning with improved left and right center accuracy is performed, and the triangular plate and dog guide While positioning the front and rear, the bar provided on the body frame and the groove of the fixed guide are fitted to determine the final center position in the left and right direction, and the triangular plate and the counterweight dog are used to determine the final front and rear. The position of the direction is decided and it mounts.

According to the second aspect of the present invention, the counterweight and the vehicle body frame can be fixed by fitting the lock plate attached to the counterweight into the groove of the square bar fixed to the vehicle body frame. The weight detaching device for a forklift truck according to claim 1, further comprising a fixing device that performs the fixing.

[0007] By mounting the fixing device to the existing mounting hole of the counterweight by bolting, the counterweight can be easily fixed to the frame with one touch.

[0008] By using the above configuration, it is possible to remove the counterweight in a place where it is necessary to remove the counterweight for transportation.
It is possible to contribute to smooth work execution and work safety.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a rear view of a forklift with a counterweight removed and wheels not shown. FIG. 2 is a side view of FIG. 1, in which the counterweight is shown by an imaginary line. FIG. 3 is a perspective view of the counterweight, and FIG. 4 is an exploded perspective view of the fixing device.

In FIG. 1, a gate-shaped bracket 2 has a shape in which the upper portion is smaller than the lower portion, and is integrally attached to the strength members of the vehicle body frame 1 at the left and right lower portions. A guide portion is provided on the back of the bracket 1, and a plate 3 is welded to a side surface.

In FIG. 2, the bracket 2 is attached to the vehicle body frame 1 at a rear position behind the driver's seat 81 and near a support fixing portion of the head guard 82. The left and right members of the vehicle body frame 1 are further rearward. , The pad 5 and the triangular plate 4 are attached. At the rear end of the center of the rear block passed to the left and right members, a bar 6 is arranged upright.

FIG. 3 shows the shape of the side surface of the opening of the counterweight 9, particularly the first guide surface 91 and the second guide surface 9.
2. The dog 93, the hanging hole 94, and the mounting hole 95 are points of the embodiment of the present invention.

In the fixing device 10 shown in FIG. 4, the lock plate 11 is housed in the groove of the fixing guide 12 and has an elongated hole on the side surface.
It is slidable with a guide 16 and is connected to the handle 13 via a rod 14. Therefore, if the operator moves the handle 13 back and forth, the lock plate 11 moves back and forth, and the hole fixed to the handle 13 and the knob of the fixed guide 12
By 17 the home position is determined and locked.

The fixed guide 12 is attached to the counterweight 9 by using a mounting hole 95 and sandwiching a bolt 15 with a plate 18 below the counterweight 9. The dimension W of the groove portion of the fixed guide 12 takes into account a dimensional difference so as to fit into the dimension B of the bar 6. The lock plate 11 of the fixing device fixes the counterweight 9 to the vehicle body frame 1 with one touch. The lock plate 11 is omitted, and there is no problem even if the lock plate 11 is fixed by conventional bolting.

The procedure for mounting the counterweight 9 will now be described. First, the fixing device 10 is mounted in a state where the hanging hook is pulled into the hanging hole 94 of the counterweight 9 and the lock plate 11 is pulled back into the mounting hole 95, and is lifted and lowered so as to sandwich the gate-shaped bracket 2 in the opening from above. The position of the counterweight 9 in the front-rear direction is such that the end faces of the counterweight 9 are brought into contact with the plate 3 welded to the bracket 2 and the guide portion provided on the back of the bracket 2, and the left and right side surfaces of the bracket 2 are countered. When the bracket 2 is gradually lowered while being in contact with the first guide surface 91 of the weight 2, the upper part of the bracket 2 is narrower and spreads to the lower part.
The guiding action is performed so that the counterweight 9 is gradually centered.

Next, the first guide portion 91 is transferred to the guide between the pad 5 and the second guide surface 92 of the counterweight 2, so that the accuracy of centering right and left is increased, and when the position is further lowered, the triangular plate is moved. 4 and the dog 93 provided at the innermost position on the left and right of the opening of the counterweight 2 start to contact. As it is lowered, the counterweight 2 moves forward to the final position in the front-rear direction and calms down due to the action of the triangular plate 4 and the dog 93. At this time, the groove W dimension of the fixing guide 12 of the fixing device 10 attached to the counterweight 2 is fitted with the B dimension of the bar 6 fixed to the vehicle body frame 1, so that final positioning in the left-right direction can be performed.

When the counterweight 2 is loaded at a fixed position, the handle 13 of the fixing device 10 is unlocked by the knob 17 and pushed in, and the thickness T of the tip of the lock plate 11 is increased.
Is fitted into the H dimension of the groove 61 of the bar 6, and the counterweight 2 is fixed to the vehicle body frame 1 with one touch.
The work is completed by locking the knob 17 so that the lock plate 11 does not shift, and removing the hanging hook.

By performing the operation in the reverse of the above description, the counterweight 2 is removed, and a smooth attachment / detachment operation can be safely performed.

[Brief description of the drawings]

FIG. 1 is a rear view of a forklift according to an embodiment of the present invention (wheels not shown, with a counterweight removed).

FIG. 2 is a side view of FIG. 1 (counter weights are outlined by imaginary lines).

FIG. 3 is a perspective view of a counterweight.

FIG. 4 is an exploded perspective view of the fixing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body frame 2 Bracket 4 Triangular plate 5 Pad 6 Bar 61 Groove 9 Counter weight 91 First guide surface 92 Second guide surface 93 Dog 10 Fixing device 11 Lock plate 12 Fixed guide 121 Groove

Claims (2)

[Claims] 1. A counterweight (9) is provided with two planes, a first guide surface (91) and a second guide surface (92), and a dog (93) on the left and right inner sides of the opening, and a body frame (9). In 1), a gate-shaped bracket (2) is set up along the head guard column behind the driver's seat, and pads (5) and a triangular plate
(4) is attached afterwards, and a square bar
(6) Stand up and place the counter weight
In (9), a weight attaching / detaching device for a forklift truck in which a fixed guide (12) is integrally attached by bolting, and a groove (121) of the fixed guide (12) can be fitted into a bar (6). 2. The counterweight is fitted by inserting a lock plate (11) attached to the counterweight (9) into a groove (61) of a rectangular bar (6) fixed to the vehicle body frame (1). The weight removing device for a forklift truck according to claim 1, further comprising a fixing device (10) for fixing the (9) and the body frame (1).