JP2003063788A - Installation equipment for forklift truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation equipment for a forklift truck making its mounting/demounting quickly capable with a worker left as aboard the forklift truck and preventing unexpectedly coming off from a fork. SOLUTION: This installation equipment for a forklift truck is constituted by providing a fork regulation part 6 permitting leaving of forks 2, 3 from fork pockets 4, 5 in the case of making a fork space approach between the forks 2, 3 and impeding the leaving of the forks 2, 3 from the fork pockets 4, 5 in the case of making the fork space separate between the forks 2, 3. The installation equipment 1 for the forklift truck, thus constituted, can be quickly mounted in and demounted from the forks 2, 3 without getting off from the forklift truck, and the mounted installation equipment for the forklift truck can impede its unexpectedly coming off from the forks 2, 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forklift mounting device that is detachably mounted on a forklift including a pair of forks that can approach and separate from each other.

[0002]

2. Description of the Related Art Conventionally, a forklift mounting device such as a sheath platen which is mounted on a fork of a forklift has been known. In such a forklift mounting device, the fork is carelessly removed from the forklift mounting device. Measures have been taken to prevent withdrawal. For example,
Japanese Utility Model Laid-Open No. 6-59393 discloses a sheath fork externally fitted to a fork so that the fork can move back and forth, a fork engaging portion provided on the fork, and a fork engaging portion provided on the sheath fork with different front and rear positions. A sheath fork engagement part that is possible and is disengaged from the fork engagement part only when the sheath fork moves upward, and a movable position from a blocking position that prevents the sheath fork moving upward from the fork to an allowable position that allows the upward motion. A telescopic fork configured with the above-mentioned blocking body is disclosed.In this telescopic fork, the sheath fork is externally fitted to the fork and is moved downward by its own weight to be carried by the fork. By engaging with the part, movement in the front-rear direction with respect to the fork is prevented. Then, the blocking body is positioned at the blocking position, the upward movement of the sheath fork relative to the fork is blocked, and the engagement between the fork engaging portion and the sheath fork engaging portion is maintained to prevent the sheath fork from accidentally coming off the fork. I'm out.

By the way, in the above-mentioned telescopic fork, when the fork length is adapted to the length of the pallet to be lifted, the pin fitted in the pin hole of the holding means is pulled out to release the holding means, and the blocking body is forked. After separating from between the horizontal piece of the and the bottom plate of the sheath fork and positioning it at the allowable position, the sheath fork is moved upward with respect to the fork by placing the sheath fork on the ground etc. Disengage the engagement with the sheath fork engagement part, adjust the fork length by moving the sheath fork back and forth with respect to the fork in this state,
The sheath fork is moved downward with respect to the fork to engage the fork engaging portion and the sheath fork engaging portion, and the fork supports the sheath fork. Then, a blocking body is inserted from a window formed in the sheath fork and inserted between the horizontal piece of the fork and the bottom plate of the sheath fork to prevent upward movement of the sheath fork with respect to the fork, and a short shaft is formed in the through hole of the holding means. After inserting, the pin is inserted into the pin hole to maintain the upper movement prevention state of the sheath fork, and the engagement between the fork engaging portion and the sheath fork engaging portion is maintained.

As described above, in the above-described conventional telescopic fork, the operator (driver of the forklift) gets off the forklift every time the fork engaging portion and the sheath fork engaging portion are engaged and disengaged, and the above-mentioned complicated operation is performed. However, it is a low-efficiency work that requires a lot of time and a heavy burden on the worker. In particular, when the fork needs to be expanded and contracted frequently in the production line, it becomes a factor that significantly reduces the production efficiency of the line, and improvement of work efficiency has been demanded.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention has been made in view of the above circumstances, and is a forklift truck that allows a worker to quickly remove the forklift truck while being on the forklift truck and prevent the forklift truck from accidentally coming off. An object is to provide a wearing device.

[0006]

In order to achieve the above object, the invention according to claim 1 of the present invention is a forklift which is detachably mounted on a forklift including a pair of forks that can approach and separate from each other. In wearing equipment,
The fork insertion opening is opened at one end, and when the fork is close to the fork pocket for storing the fork inserted from the fork insertion opening, the fork is allowed to exit from the fork pocket when the fork is close to the fork gap. And a fork restriction means for preventing the fork from retracting from the fork pocket when the fork space is separated.

According to the present invention, the fork can be moved out of the fork pocket when the fork is close to the fork gap, and the fork can be separated from the fork gap when the fork is close to the fork gap. The fork restricting means can prevent the fork from leaving the fork pocket.

In order to achieve the above object, the invention according to claim 2 of the present invention is such that the fork restricting means is
Brackets protruding from both sides of the fork insertion opening of the fork pocket, and regulation members provided upright on the inner side surfaces of the brackets are provided, and each of the regulation members is separated from the fork space by a fork gap. It is characterized by abutting the back surface to prevent the fork from exiting the fork pocket.

According to the present invention, the fork restricting means is configured such that the restricting members arranged on both outer sides of the fork insertion port are brought into contact with the back surfaces of the forks housed in the fork pockets. , It is possible to prevent the fork from exiting the fork pocket.

In order to achieve the above-mentioned object, the invention according to claim 3 of the present invention is such that the forks are closely spaced between brackets arranged on both outer sides of the fork insertion opening. It is characterized in that a fork guide portion for guiding the end face is provided in a protruding manner.

According to the present invention, the fork tip portion can be guided to the fork insertion opening by the fork guide portion when inserting the forks with the fork spacing close to each other into the fork pocket.

In order to achieve the above object, the invention according to claim 4 of the present invention comprises a detecting means for detecting that the forks accommodated in the fork pockets have separated the fork intervals. According to the detection signal of the detection means, the fork is restricted from moving toward the side where the fork interval is close.

According to the present invention, with this structure, it is possible to detect by the detection means that the forks stored in the fork pockets have separated the fork interval, and based on the detection signal of the detection means. Thus, it is possible to restrict the forks from moving so as to bring the fork intervals close to each other.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A mounting tool for a forklift according to an embodiment of the present invention will be described with reference to FIGS. First, the outline of the forklift attachment of the present embodiment will be described. The forklift mounting device 1 is a forklift mounting device 1 that is detachably mounted on a pair of forks 2 and 3 that are arranged in the front part of a forklift (not shown) and can be moved toward and away from each other. As shown in FIG.
When the forks 2 and 3 are brought close to each other (see FIGS. 1 to 4), the forks 2 and 3 are allowed to exit from the fork pockets 4 and 5, and the forks 2 and 3 are separated from each other. When the vehicle is allowed to move (see FIGS. 5 and 6), it is possible to dismount from the forklift by providing the fork restriction portion (fork restriction means) 6 that prevents the forks 2 and 3 from retracting from the fork pockets 4 and 5. Without
The forklift attachment 1 can be quickly attached to and detached from the forks 2 and 3, and the attached forklift attachment is prevented from accidentally coming off the forks 2 and 3.

Next, the details of the forklift mount 1 will be described. The forklift mounting device 1 includes a fork pocket right 4 and a fork pocket symmetrically formed left and right (right and left on the paper surface in FIGS. 1, 3, and 5) on both sides in the lower surface width direction of a platen 8 made of steel plate. It is configured by arranging 5 on the left. The fork pockets 4 and 5 are formed by pipe-shaped corner members capable of accommodating the forks 2 and 3 inserted from the fork insertion ports 9 and 10. The fork pockets 4 and 5 are formed on the lower surface of the platen 8. Are welded to each other and joined at predetermined intervals. Also,
In the fork pockets 4 and 5, the distance (W1 shown in FIG. 2) between the inner side surface 4b of the inner side wall 4a of the fork pocket right 4 and the inner side surface 5b of the inner side wall 5a of the fork pocket left 5 is as shown in FIG.
To the forks 2 shown in FIG.
The inner side surface 4d of the outer wall 4c of the fork pocket right 4 and the fork pocket left 5 are formed to be slightly smaller than the interval (W2 shown in FIG. 2) between the inner side surfaces 2a and 3a.
Between the outer wall 5c and the inner surface 5d (W3 shown in FIG. 2)
However, it is formed to be slightly larger than the distance (W4 shown in FIG. 6) between the outer surfaces 2b and 3b of the forks 2 and 3 which are separated from each other by the fork distances shown in FIGS. The fork pockets 4 and 5 are provided with fork guide portions 11 and 12 formed by extending the ends of the inner side walls 4a and 5a and projecting from the fork insertion openings 9 and 10.

Further, fork regulating portions 6 and 7 as fork regulating means are provided on the outer side walls 4c and 5c of the fork pockets 4 and 5, respectively.
Fix the brackets 13 and 14 to the outer surfaces 4e and 5e of the outer walls 4c and 5c, respectively.
The regulating member 1 having a required length on the inner side surfaces 13a and 14a of
5 and 16 are formed upright. Further, the fork restricting portions (fork restricting means) 6 and 7 are the restricting members 15 and 1.
6 and the front end surface 8a of the platen 8 (W shown in FIG. 6).
6) is the thickness of the base portions 2c and 3c of the forks 2 and 3 (see FIG. 6).
Is formed larger than W5) shown in FIG. 2 by a required dimension, and the forks 2, 16 are stored between the fork pockets 4, 5 between the restriction members 15, 16 and the front end surface 8a of the platen 8 and are separated from each other. 3 has a structure in which the respective base portions 2c and 3c are interposed. The fork restricting portions (fork restricting means) 6 and 7 allow the forks 2 and 3 to withdraw from the fork pockets 4 and 5 when the forks 2 and 3 are brought close to each other in the fork distance, and When the forks 2 and 3 separate the fork distances, the respective regulation members 1 of the fork regulation portions (fork regulation means) 6 and 7
5, 5 and 16 are brought into contact with the rear surfaces 2d and 3d of the base portions 2c and 3c of the forks 2 and 3, respectively, so that the forks 2 and 3 are prevented from retracting from the fork pockets 4 and 5.

Further, at least one of the forks 2 and 3 is provided with a proximity switch (not shown) as a detection means, and this forklift (not shown) is provided with a fork pocket by the proximity switch (detection means). It is detected that the forks 2 and 3 housed in the forks 4 and 5 are in a state where the fork intervals are separated from each other, and based on the detection signal, the forks 2 and 3 are restricted from moving toward the side where the fork intervals are approached. It has a structure. The operation lock of the movement of the forks 2 and 3 toward the side where the fork space is made closer is released by operating a lock release switch (not shown) installed at a predetermined position of the forklift. In addition, the detection means is fork pockets 4, 5
It is only necessary that it can detect that the forks 2 and 3 housed in the fork are separated from each other, and the fork is not limited to the proximity switch. Further, based on the detection signal of the above detection means, the forks 2 and 3 are not always required.
It is not necessary to lock the operation of the fork 2 and, for example, by installing an indicator light (not shown) at a position where visibility is high and turning on the indicator light during the detection of the detection signal, the operator mistakenly operates the fork 2 , 3 may be configured to call out so as not to perform the operation.

The operation of the forklift mounting device 1 and the forklift including the forklift mounting device 1 according to the present embodiment having the above-mentioned structure will be described. When the forklift mounting device 1 is mounted on the forks 2 and 3 of a forklift (not shown), the forks 2 and 3 are moved forward so that the fork spacing is close as shown in FIGS. 1 and 2. Is inserted from the fork insertion ports 9 and 10 of the fork pockets 4 and 5, and the forks 2 and 3 are
The front faces of the bases 2c and 3c of the above are brought into contact with the front end face 8a of the platen 8 and housed in the respective fork pockets 4 and 5 of the forklift mounting device 1. At this time, the fork 2 and the fork guide portions 11 and 12 of the fork pockets 4 and 5 are used.
By guiding the tip of the fork 3, the forks 2 and 3 can be easily inserted into the respective fork insertion ports 9 and 10.

Next, the forks 2 and 3 stored in the fork pockets 4 and 5 are driven to move the forks 2 and 3,
The fork gap is moved from the close state (see FIGS. 3 and 4) to the separated fork gap (see FIGS. 5 and 6). The distance (W3 shown in FIG. 2) between the inner surface 4d of the outer wall 4c of the fork pocket right 4 and the inner surface 5d of the outer wall 5c of the fork pocket left 5 is set between the outer surfaces 2b, 3b of the forks 2,3. Interval (W shown in FIG. 6
By forming the forklift mounting tool 1 slightly larger than 4), the movement of the forklift attachment 1 in the fork arrangement direction with respect to the forks 2 and 3 (the left-right direction on the paper surface in FIG. 6) is regulated, and the platen 8 and the fork regulation portion ( (Fork regulating means) By interposing the base portions 2c and 3c of the forks 2 and 3 at intervals between the regulating members 15 and 16 of 6 and 7,
The forklift mounting device 1 is prevented from moving in the front-rear direction with respect to the forks 2 and 3, and the forklift mounting device 1 is mounted on the forks 2 and 3 in a predetermined manner.

The forklift (not shown) is
At least one of the forks 2 and 3 is provided with a proximity switch (detection means) (not shown) that detects that the forks 2 and 3 housed in the fork pockets 4 and 5 are in a state where the fork spaces are separated from each other. By restricting the movement of the forks 2 and 3 toward the side where the fork spacing is made closer based on the detection signal of the switch (detection means),
During the transportation work in which the forklift attachment 1 is attached to the forks 2 and 3, the forks 2 and 3 are mistakenly moved toward the side where the fork spacing is close, and the forklift attachment 1 is separated from the forks 2 and 3. Such a situation can be avoided.

When the forklift mounting device 1 mounted on the forks 2 and 3 is replaced with a forklift mounting device 1 having a different specification (the shape of the platen 8 is different), a forklift (not shown) is operated. Then, the forklift mounting tool 1 mounted on the forks 2, 3 is placed on the floor surface (not shown), and in this state, the lock release switch (not shown) is operated to operate the forks 2, 3 After unlocking the movement of the fork closer to the side where the fork spacing is closer, the forks 2 and 3 are brought into a state where the fork spacing is closer and the forklift is retracted, whereby the forks 2 and 3 of the forklift attachment 1 are mounted. You can exit from pockets 4 and 5. Then, after moving the forklift to position it in front of the forklift mounting tool 1 for mounting the forks 2 and 3 next (see FIGS. 1 and 2), the forklift is advanced to move the forks 2 and 3
The front of each base 2c, 3c of the forklift attachment 1
Until the platen 8 comes into contact with the front end surface 8a of the fork 2,
3 is the fork pocket 4 of the forklift attachment 1
The forklift mounting device 1 can be replaced by inserting the forklift mounting device 1 into the forklift 5 and then driving the forks 2 and 3 to separate the fork intervals.

[0022]

According to the first aspect of the present invention, the fork insertion opening is formed at one end, and the fork pocket for accommodating the fork inserted from the fork insertion opening and the fork have a fork interval. Since the fork is allowed to withdraw from the fork pocket when brought close to each other, and the fork restricting means for preventing the fork from withdrawing from the fork pocket when the fork is separated from the fork space, The operator (driver of the forklift) can attach and detach the forklift attachment without getting off the forklift, and the attachment and detachment of the forklift attachment should be performed only by moving the fork intervals of the forks close to and away from each other. Therefore, the burden on the operator can be reduced, and the working efficiency can be significantly improved. Further, it is possible to prevent the forklift attachment from being inadvertently detached from the fork and safely carry the carrying work.

According to the second aspect of the present invention, the fork restricting means is provided with brackets projecting on both outer sides of the fork insertion opening of the fork pocket, and upright on each inner side surface of the bracket. The fork regulating means is provided so as to prevent the forks from coming out of the fork pockets by abutting each of the regulating members against the back surface of each of the forks with the fork spacing separated from each other. It is possible to configure the structure at low cost, and it is possible to effectively prevent the forklift mounting device from being accidentally detached from the fork.

According to the third aspect of the present invention, the fork guides for guiding the inner end surfaces of the forks whose fork spaces are close to each other between the brackets arranged on both outer sides of the fork insertion opening. Since the protruding portion is provided, by guiding the fork tip portion with the fork guide portion, the fork can be easily inserted into the fork insertion opening of the fork pocket of the mounting tool for the forklift, reducing the burden on the operator. In addition, the mounting operation of the mounting tool for the forklift can be performed quickly.

According to the invention of claim 4 of the present invention, the fork stored in the fork pocket is
Since the fork is provided with a detecting means for detecting that the fork interval is separated, and the fork is restricted from moving toward the side where the fork interval is approached based on the detection signal of the detecting means, the fork lift attachment is attached to the fork. It is possible to avoid a situation in which the fork is closed by mistake and the forklift mounting device is detached from the fork during the transportation work in the mounted state, and safe work can be guaranteed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a forklift attachment according to the present embodiment, and is a perspective view showing a state before a fork is attached to a forklift attachment, in particular.

FIG. 2 is an explanatory view of the forklift mounting device of the present embodiment, and is a plan view particularly showing a state before the fork is mounted on the forklift mounting device.

FIG. 3 is an explanatory diagram of the forklift mounting device of the present embodiment, and is a perspective view particularly showing a state in which forks whose fork spaces are close to each other are stored in a fork pocket of the forklift mounting device.

FIG. 4 is an explanatory view of the forklift mounting device of the present embodiment, and is a plan view particularly showing a state in which forks with closely spaced forks are stored in a fork pocket of the forklift mounting device.

FIG. 5 is an explanatory view of the forklift mounting device of the present embodiment, and is a perspective view showing a state in which the forklift mounting device is mounted on the fork in a predetermined manner.

FIG. 6 is an explanatory view of the forklift mounting device of the present embodiment, and is a plan view particularly showing a state in which the forklift mounting device is mounted on the fork in a predetermined manner.

[Explanation of symbols]

1 Forklift fittings A few forks 4 Fork pocket right (fork pocket) 5 left fork pocket (fork pocket) 6 Fork control section (fork control means) 7 Fork control section (fork control means) 9 Fork insertion slot 10 Fork insertion slot 11 Fork guide 12 Fork guide 13 Bracket (fork control means) 14 Bracket (fork regulation means) 15 Restriction member (fork restriction means) 16 Restriction member (fork restriction means)

Claims (4)

[Claims] 1. A mounting tool for a forklift, which is detachably mounted on a forklift equipped with a pair of forks that can approach and separate from each other, wherein a fork insertion opening is opened at one end, and the fork inserted from the fork insertion opening is The fork pocket to be housed and the fork are allowed to withdraw from the fork pocket when the fork is close to the fork gap, and the fork is moved to the fork pocket when the fork is separated from the fork gap. A forklift attachment, comprising: a fork restricting means for preventing the forklift from exiting from the forklift. 2. The fork restricting means includes brackets projecting from both outer sides of a fork insertion opening of the fork pocket, and restricting members erected on respective inner side surfaces of the brackets.
2. The fork according to claim 1, wherein each of the restricting members is abutted against a rear surface of each of the forks spaced apart from each other to prevent the fork from exiting from the fork pocket. Forklift fittings. 3. A fork guide portion is provided between the brackets arranged on both outer sides of the fork insertion opening so as to guide the inner end surface of each of the forks whose fork spaces are close to each other. The mounting tool for a forklift according to 1 or 2. 4. The fork housed in the fork pocket is provided with a detection means for detecting that the fork space is separated, and based on a detection signal of the detection means,
The mounting device for a forklift according to any one of claims 1 to 3, wherein the fork is restricted from moving toward a side in which a fork space is made closer.