JP2002211894A - Counterbalance type forklift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a counterbalance type forklift capable of facilitating attachment and detachment for a counterweight, and preventing surplus foreign matter and rainwater from collecting on the counterweight. SOLUTION: The counterweight 2 is provided with a pair of right and left guide grooves 11 formed extending from the rear end part 21 thereof to the upper part 22 to be increased in depth as they go upward. Latch pieces 4 for suspending a weight are constructed on the front part of the upper part in the respective guide grooves 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a counterbalance type forklift, and more particularly, to a structure of a counterweight provided at a rear portion of a vehicle body.

[0002]

2. Description of the Related Art Generally, in a counterbalance type forklift, when a load is placed on a fork, a rear portion of a vehicle body is lifted so as not to lose a balance.
As shown in FIG. 5, a counterweight 2 made of a casting or the like is attached to a rear portion of the vehicle body 1.

When assembling or repairing the vehicle body 1, it is necessary to attach or remove the counterweight 2, but since the counterweight 2 is heavy, it is usually necessary to use a crane, a chain block, or the like. The work is performed while the counterweight 2 is suspended using a suspension machine.

Therefore, in the conventional counterbalance type forklift, concave portions 3 are provided on the left and right of the upper portion of the counterweight 2, and pins 4 as hanging pieces for suspending the weight are provided in the concave portions 3. When assembling or repairing the device, the counterweight 2 is hung by hooking a hook of a suspender (not shown) on these pins 4.

Reference numeral 7 denotes a driver's seat, 8 denotes a column for a head guard, and 9 denotes a direction indicator.

[0006]

However, in the configuration in which the recess 3 is provided above the counterweight 2 as in the prior art shown in FIG. 5, the size of the suspension machine is larger than the size of the upper opening of the recess 3. When the shape of the hook is large, it is difficult to hook the hook directly to the pin 4, and it is necessary to separately interpose a knuckle joint or the like. It takes time and effort.

Further, if the concave portion 3 is simply provided on the upper part of the counterweight 2, foreign matters such as dust and rainwater easily accumulate in the concave portion 3 depending on the working environment, and the work of removing these is troublesome.

Further, in the prior art, a storage room for mounting electrical components such as a control unit is provided in the counterweight 2, but in such a structure, in addition to the storage room described above, an additional storage room is provided. It is not advisable to separately provide the concave portion 3 for hooking the hook, since this causes a reduction in the strength of the entire counterweight.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the hook of the suspension can be easily hooked on the counterweight, so that the counterweight can be easily attached and detached. It is another object of the present invention to provide a counterbalance type forklift in which excess foreign matter and rainwater hardly accumulate on the counterweight and do not promote reduction in the strength of the counterweight.

[0010]

According to the present invention, there is provided a counterbalance type forklift in which an unweight is provided at a rear portion of a vehicle body.
The following configuration is adopted.

That is, according to the first aspect of the present invention, a guide groove is formed in the counterweight from the rear end to the upper part so as to be deeper as going upward. A hanging piece for suspending the weight is provided.

According to this, when the hook of the suspension machine is slid along the guide groove, the hook is easily hooked on the hooking piece, so that the work of attaching and detaching the counterweight can be easily performed. Work efficiency is increased. Moreover,
Since the guide groove is formed so as to be shallower from the upper portion to the rear end portion, extra foreign matter and rainwater are quickly discharged to the outside without stagnation in the guide groove.

According to the second aspect of the present invention, the counterweight has a storage chamber for mounting electrical components formed from the rear end to the upper portion, and drains along the periphery of the opening of the storage chamber. A side groove is provided, and the side groove is formed so as to become deeper as it goes upward, and a hanging piece for suspending a weight is installed in the side groove. I have.

According to this, since the rainwater is quickly drained along the side grooves formed around the storage space for the counterweight, it is possible to prevent the rainwater from entering the storage room. In addition, since the side groove can be used also as a guide groove for the hook of the suspension machine, the work of attaching and detaching the counterweight can be easily performed, and the working efficiency is increased. Further, unlike the related art, there is no need to provide a separate recess for hooking a hook in addition to the storage chamber, so that the strength of the counterweight is not reduced.

The invention described in claim 3 is based on claim 2.
In the configuration described above, the counterweight includes an upper groove communicating with the side groove above an opening of the storage chamber, and an upper portion of the counterweight is close to a portion where the hooking piece is erected. Further, a raised portion for increasing the thickness of the weight is locally formed at a position where the upper groove is not closed.

[0016] Thus, the thickness of the portion above the portion where the hanging piece for suspending the weight is erected is increased by the raised portion, so that the strength of the counterweight at the suspended position can be ensured. In addition, since the raised portion is only provided locally to the upper groove, the rainwater flowing into the upper groove is smoothly guided to the side groove without being retained there and discharged.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to FIGS. Embodiment 1 FIG. 1 is a perspective view showing a rear portion of a counterbalanced forklift according to Embodiment 1 of the present invention.
The same reference numerals are given to components corresponding to or corresponding to the conventional technology shown in FIG.

In FIG. 1, 1 is a vehicle body, 2 is a counterweight provided at a rear portion of the vehicle body 1, 7 is a driver's seat, 8 is a column of a head guard, and 9 is a direction indicator.

In the first embodiment, the counterweight 2 is provided with a pair of left and right guide grooves 11.
Each of these guide grooves 11 is formed from the position above the rear end 21 of the counterweight 2 to the upper part 22, and is formed so that the rear end 21 is shallow and deeper toward the upper part 22. Have been. A pin 4 as a suspending piece for suspending the weight is provided in an upper front portion in each of the guide grooves 11.

According to this configuration, when the hook of the suspension machine is slid along the guide groove 11 from the rear side of the vehicle body, the hook is easily hooked on the pin 4. Time can be easily performed, and work efficiency is increased.

Furthermore, since the guide groove 11 becomes shallower from the upper portion 22 to the rear end portion 21 of the counterweight 2, extra foreign matter and rainwater are quickly discharged to the outside without stagnation in the guide groove 11. You. Therefore, the work for removing the foreign matter in the guide groove 11 can be reduced, and it does not rust due to rainwater.

Embodiment 2 FIG. 2 is a perspective view showing a rear portion of a counterbalance type forklift according to Embodiment 2 of the present invention, FIG. 3 is a plan view of a counterweight of the forklift, and FIG. 4 is a counter of the forklift. FIG. 2 is a front view of the weight as viewed from the rear of the vehicle body, and components corresponding to or corresponding to the first embodiment shown in FIG. 1 are denoted by the same reference numerals.

2 to 4, reference numeral 1 denotes a vehicle body, 2 denotes a counterweight provided at a rear portion of the vehicle body 1, 7 denotes a driver's seat, 8 denotes a column of a roof guard, and 9 denotes a direction indicator.

In the second embodiment, the counterweight 2 is integrally formed with an overhang 23 protruding partway toward the rear end 21 toward the rear of the vehicle body 1 at a position above the counterweight 2. A storage chamber 24 having an opening 25 continuous from 23 to the rear end 21 is provided, and the electrical component 12 (for example, a control unit that controls each part of the vehicle body 1) is stored in the storage chamber 24.

An intake port 26 extending from the front side of the vehicle body 1 to the inside of the storage chamber 24 is formed below the counterweight 2, and the electrical component 12 is located at the center of the overhang 23 of the counterweight 2. A substantially rectangular exhaust port 27 is formed in a plan view for discharging hot air generated from the outside to the outside. A cover (not shown) that covers the opening 25 of the storage chamber 24 and the exhaust port 27 is attached to the counterweight 2.

The counterweight 2 has an opening 24 and an exhaust port 26 so that when the cover is attached, the cover forms the same plane as the upper surfaces of the projecting portion 23 and the rear end 21 of the counterweight 2. Is formed at the periphery of the stepped portion by the thickness of the cover.
In addition, a drain groove 29 is provided in the step portion 28 along the periphery of the opening portion 24 and the exhaust port 26.

The drain groove 29 includes side grooves 29a and 29b located on the left and right of the opening 25 and an upper groove 29c located above the opening 25.
b and 29c are mutually connected.

Each side groove 29a, 29b is
Are extended from the left and right to the left and right side ends of the overhang portion 23, and are formed so as to gradually become deeper with a predetermined curvature as going upward. A pin 4 as a hanging piece for suspending the weight is provided at an upper front position in each of the side grooves 29a and 29b.

On the other hand, in the upper groove 29c, the step portion 28 of the overhang portion 23 is further hollowed to surround the left, right, rear and three sides of the exhaust port 27, and communicates with the side grooves 29a, 29b. Further, the projecting portion 23 adjacent to the place where the weight suspending pin 4 of each side groove 29a, 29b is erected is provided with a stepped portion 2 so as not to close the upper groove 29c.
8 are locally left as they are, thereby forming raised portions 30a and 30b for increasing the thickness of the weight.

In the above configuration, the hook of the suspension machine is connected to the left and right side grooves 29a,
When the slide is performed along 29b, the hook is easily hooked on the pin 4, so that the work of attaching and detaching the counterweight 2 can be easily performed, and the work efficiency is increased.
Particularly, as in the second embodiment, the left and right side grooves 29
It is convenient if the hooks a and 29b have a predetermined curvature as they move upward, since the movement when guiding the hooks becomes smooth.

Moreover, in this case, each side groove 29a, 29
Since the thickness of the upper portion of the portion where the pin 4b is installed is increased by the raised portions 30a and 30b, the strength of the counterweight 2 at the suspended position can be ensured.

As described above, in the second embodiment, since the drain groove 29 functions not only as a drain, but also as a guide groove for the hook of the suspension machine, the storage chamber 24 is different from the conventional one. In addition to this, there is no need to provide a separate recess for hooking a hook. For this reason, it is possible to prevent the strength of the weight 2 from unnecessarily decreasing.

Further, since rainwater is quickly drained along the exhaust port 27 of the counterweight 2 and the drainage groove 29 formed around the storage room 24, it is possible to prevent rainwater from entering the storage room 24. In this case, each of the raised portions 30a, 30 formed on the overhanging portion 23 on the upper part of the counterweight 2
b is formed locally so as not to close the upper groove 29c.
Rainwater that has invaded the surroundings flows into the upper groove 29c,
There, it is smoothly guided to the side grooves 29a and 29b without staying.

In the first and second embodiments, the pins 4 are used as hanging pieces for suspending the weights. However, any pins may be used as long as they can be securely engaged with the hooks of the hanging machine. For example, a plate-like thing can be applied.

[0035]

According to the present invention, the following effects can be obtained. (1) In the counterbalance type forklift according to the first aspect of the present invention, when the hook of the suspension machine is slid along the guide groove, the hook is easily hooked on the hooking piece. Removal work can be performed easily, and work efficiency increases. In addition, since the guide groove is formed so as to be shallower from the upper portion to the rear end portion, extra foreign matter and rainwater are discharged to the outside without staying in the guide groove.

(2) In the counterbalance type forklift according to the second aspect of the present invention, since rainwater is quickly drained along a drain groove formed around the storage space for the counterweight, the rainwater enters the storage room. Can be prevented. In addition, since the left and right side grooves forming the drainage groove can also be used as the guide grooves of the hooks of the suspension machine, the work of attaching and removing the counterweight can be easily performed. Since there is no need to provide a separate recess for hooking a hook in addition to the storage chamber, it is possible to prevent the strength of the counterweight from being unnecessarily reduced.

(3) In the counterbalance type forklift according to the third aspect of the present invention, in addition to the effect of the second aspect, the thickness of the upper portion of the portion where the suspending piece for suspending the weight is installed. Since the thickness is increased by the raised portions, the strength of the counterweight at the suspended position can be ensured. In addition, since the raised portion is provided locally and does not close the upper groove, the rainwater flowing into the upper groove is smoothly guided to the side groove without being retained therein and discharged to the outside.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a rear portion of a counterbalanced forklift according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a rear portion of a counterbalanced forklift according to Embodiment 2 of the present invention.

FIG. 3 is a plan view of a counterweight of the forklift.

FIG. 4 is a front view of the counterweight of the forklift as viewed from the rear of the vehicle body.

FIG. 5 is a perspective view showing a rear portion of a conventional counterbalanced forklift.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Counterweight 3 Concave part 4 Hanging piece (pin) 11 Guide groove 12 Electrical equipment 21 Rear end 22 Upper part 23 Overhang part 24 Storage room 25 Opening part 26 Inlet port 27 Exhaust port 28 Step part 29 Drain groove 29a, 29b Side groove 29c Upper groove 30a, 30b Ridge

Claims (3)

[Claims] 1. A counterbalance type forklift in which a counterweight is provided at a rear portion of a vehicle body, wherein a guide groove is formed in the counterweight from the rear end to an upper portion so as to become deeper as going upward. A counterbalance type forklift, wherein a suspending piece for suspending a weight is erected in an upper portion of the guide groove. 2. A counterbalance type forklift in which a counterweight is provided at a rear part of a vehicle body, wherein the counterweight has a storage chamber for mounting electrical components from a rear end to an upper part thereof, and the storage chamber has a counterweight. A side groove for draining water is provided along the periphery of the opening portion, and the side groove is formed so as to become deeper as going upward, and a hanging portion for hanging a weight is provided in the side groove. A counterbalance type forklift having a stop piece provided thereon. 3. The counterweight has an upper groove communicating with the side groove above an opening of the storage chamber, and an upper portion of the counterweight is close to a location where the hooking piece is erected. 3. The counterbalance type forklift according to claim 2, wherein a raised portion for increasing the thickness of the weight is locally formed at a position where the upper groove is not closed.