JP3578337B2 - Counterbalance type forklift - Google Patents

Description

[0001]
TECHNICAL 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]
[Prior art]
In general, in a counterbalance type forklift, as shown in FIG. 5, a counter made of a casting or the like is provided at the rear portion of the vehicle body 1 so as to prevent the rear portion of the vehicle body from lifting up when a load is placed on the fork, thereby disturbing the balance. Weight 2 is attached.
[0003]
When assembling or repairing the vehicle body 1, it is necessary to attach and remove the counterweight 2; however, since the counterweight 2 is a heavy object, it is usually used for a lifting machine such as a crane or a chain block. The work is performed in a state where the counterweight 2 is suspended using
[0004]
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 installed in the concave portions 3 to assemble the vehicle body 1. At the time of repair, the counterweight 2 is hung by hooking these pins 4 of a hanging machine (not shown).
[0005]
In addition, 7 is a driver's seat, 8 is a column of a head guard, and 9 is a direction indicator.
[0006]
[Problems to be solved by the invention]
However, in the configuration in which the concave portion 3 is provided above the counterweight 2 as in the conventional case shown in FIG. 5, when the shape of the hook of the suspension machine is larger than the size of the upper opening of the concave portion 3, However, 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.
[0007]
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.
[0008]
Further, in the prior art, there is a counter weight 2 provided with a storage chamber for mounting electrical components such as a control unit. In such a structure, a hook is additionally provided in addition to the storage chamber described above. It is not advisable to provide the recessed portion 3 for locking, since this results in a reduction in the strength of the entire counterweight.
[0009]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and a hook of a suspension can be easily hooked on a counterweight, so that a counterweight can be easily attached or detached, and a counterweight can be provided. It is an object of the present invention to provide a counterbalance type forklift that rarely accumulates extraneous matter and rainwater on the floor and does not promote reduction in the strength of the counterweight.
[0010]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention employs the following configuration in a counterbalanced forklift in which an unweight is provided at a rear portion of a vehicle body.
[0011]
According to the first aspect of the present invention, the counterweight is formed with a storage chamber for mounting electrical components from the rear end to the upper portion, and a side groove for draining along the periphery of the opening of the storage chamber. The side groove is formed so as to become deeper as going upward, and a hanging piece for suspending a weight is provided in the side groove.
[0012]
According to this, since the rainwater is quickly drained along the side groove formed around the storage space of 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.
[0013]
The invention of claim 2, wherein, in the configuration of claim 1, wherein said counterweight comprises an upper groove communicating with said lateral groove to the opening above the housing chamber, wherein the upper portion of the counterweight A ridge for increasing the thickness of the weight is locally formed at a position close to the place where the hook piece is erected and not closing the upper groove.
[0014]
As a result, the thickness of the upper portion of the portion where the suspending piece for suspending the weight is installed 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.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 9.
Embodiment 1
FIG. 1 is a perspective view showing a rear portion of a counterbalance type forklift according to Embodiment 1 of the present invention, and the same reference numerals are given to components corresponding to or corresponding to the conventional technology shown in FIG.
[0016]
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.
[0017]
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.
[0018]
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, so that the work of attaching and detaching the counterweight 2 is facilitated. Can be performed, work efficiency is increased.
[0019]
Moreover, 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. Therefore, the work of removing the foreign matter in the guide groove 11 can be reduced, and there is no rust due to rainwater.
[0020]
Embodiment 2
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 the counterweight of the forklift, and FIG. 4 is a view of the counterweight of the forklift viewed from the rear of the vehicle body. FIG. 2 is a front view, and the same reference numerals are given to components corresponding to or corresponding to the first embodiment shown in FIG.
[0021]
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 support of a roof guard, and 9 denotes a direction indicator.
[0022]
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 to the 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.
[0023]
In addition, 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 generated from the electrical component 12 in the center of the overhang 23 of the counterweight 2. An exhaust port 27 having a substantially rectangular shape in plan view for discharging hot air to the outside is formed. 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.
[0024]
Further, the counterweight 2 is provided around the opening 24 and the exhaust port 26 so that the cover forms the same plane as the overhanging portion 23 and the upper surface of the rear end 21 of the counterweight 2 when the cover is attached. Is formed with a stepped portion 28 which is hollowed by the thickness of the cover. In addition, a drain groove 29 is provided in the step portion 28 along each of the opening portion 24 and the exhaust port 26.
[0025]
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, and the grooves 29a, 29b and 29c communicate with each other.
[0026]
Each of the side grooves 29a and 29b is formed so as to extend from the left and right of the opening 25 to the left and right side ends of the overhang portion 23, and to be gradually deeper with a predetermined curvature as going upward. ing. 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.
[0027]
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, in the projecting portion 23 adjacent to the place where the weight suspending pin 4 of each side groove 29a, 29b is erected, the step portion 28 is locally left as it is so as not to close the upper groove 29c. Thus, the raised portions 30a and 30b for increasing the thickness of the weight are formed.
[0028]
In the above configuration, when the hook of the suspension machine is slid from the rear side of the vehicle along the left and right side grooves 29a and 29b constituting the drain groove 29, the hook is easily hooked on the pin 4, so that the counterweight is provided. 2 can be easily attached and detached, and the working efficiency is increased. In particular, if the left and right side grooves 29a and 29b have a predetermined curvature as they go upward as in the second embodiment, the movement for guiding the hooks becomes smooth, which is convenient. .
[0029]
Moreover, in this case, since the thickness of the upper portion of each side groove 29a, 29b where the pin 4 is erected is increased by the raised portions 30a, 30b, the strength of the counterweight 2 at the suspended position is reduced. Can be secured.
[0030]
As described above, in the second embodiment, the drain groove 29 not only functions as a drain but also functions as a guide groove of a hook of a suspension machine. Further, 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.
[0031]
Also, since rainwater is quickly drained along the exhaust port 27 of the counterweight 2 and the drain groove 29 formed around the storage room 24, the rainwater is prevented from entering the storage room 24. In this case, the respective raised portions 30a and 30b formed on the overhanging portion 23 on the upper part of the counterweight 2 are locally formed so as not to close the upper groove 29c. The rainwater that has entered around the mouth 27 flows into the upper groove 29c, and is smoothly guided to the side grooves 29a and 29b without staying there.
[0032]
In the first and second embodiments, the pin 4 is used as a hanging piece for suspending the weight. However, any pin may be used as long as it can be securely engaged with the hook of the hanging machine. A shape-like thing can also be applied.
[0033]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0034]
(1) In the counterbalance type forklift according to the first aspect of the present invention, since rainwater is quickly drained along the drainage groove formed around the storage space for the counterweight, it is possible to prevent rainwater from entering the storage room. Can be prevented. Moreover, since the left and right side grooves forming the drainage groove can also be used as the guide groove of the hook of the suspension machine, the work of attaching and removing the counterweight can be easily performed. Since there is no need to additionally provide a 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.
[0035]
(2) The counterbalance type forklift according to the second aspect of the present invention has the effect of the first aspect of the present invention, in addition to the effect of the first aspect, wherein the thickness of the upper portion of the portion where the hanging piece for hanging the weight is installed is raised. Since it is increased by the portion, it is possible to secure the strength at the suspended position of the counterweight. 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)
DESCRIPTION OF SYMBOLS 11 Guide groove 12 Electrical component 21 Rear end part 22 Upper part 23 Overhang part 24 Storage room 25 Opening part 26 Inlet 27 Exhaust outlet 28 Step part 29 Drainage groove 29a, 29b Side groove 29c Upper groove 30a, 30b Protrusion

Claims (2)

In a counterbalance type forklift where the counterweight is provided at the rear of the vehicle body,
The counterweight has a storage chamber for mounting electrical components from the rear end to the upper part, and a side groove for draining along the periphery of the opening of the storage chamber. Is a counterbalance type forklift, wherein a deeper bottom is formed as it goes upward, and a hanging piece for hanging a weight is installed in the side groove. The counter weight has an upper groove communicating with the side groove above the opening of the storage chamber, and the upper part of the counter weight is close to a place where the hooking piece is erected and the upper groove is 2. A counterbalance type forklift according to claim 1 , wherein a raised portion for increasing the thickness of the weight is locally formed at a position where the counterweight is not closed.

Images