KR20150010850A - Fixing Device of Supplementary Fork for Forklift - Google Patents

Fixing Device of Supplementary Fork for Forklift Download PDF

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Publication number
KR20150010850A
KR20150010850A KR20130085076A KR20130085076A KR20150010850A KR 20150010850 A KR20150010850 A KR 20150010850A KR 20130085076 A KR20130085076 A KR 20130085076A KR 20130085076 A KR20130085076 A KR 20130085076A KR 20150010850 A KR20150010850 A KR 20150010850A
Authority
KR
South Korea
Prior art keywords
fork
shaft
auxiliary
auxiliary fork
hole
Prior art date
Application number
KR20130085076A
Other languages
Korean (ko)
Inventor
나기업
이운용
Original Assignee
주식회사 두산
(주)성주엠.아이
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 두산, (주)성주엠.아이 filed Critical 주식회사 두산
Priority to KR20130085076A priority Critical patent/KR20150010850A/en
Publication of KR20150010850A publication Critical patent/KR20150010850A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks

Abstract

The present invention relates to an auxiliary fork fixing apparatus for a forklift, and it is intended to prevent detachment or breakage of the auxiliary fork fixing apparatus, and to easily detach the auxiliary fork.
The present invention relates to a fork lift truck having a body portion 21 having a rectangular hollow portion so that a fork 7 of a forklift truck can be inserted thereinto and a fastening portion 21 provided at one end of the body portion 21, The auxiliary fork 20 is inserted into an insertion hole 23 provided at one end of the auxiliary fork 20 and is inserted into the fork 23, (24) for connecting the auxiliary fork (20) to the fork (7), wherein the auxiliary fork is fixed to the fork (7) A through hole 30 is formed at one end in the circumferential direction and a protrusion 31 having a hemispherical protrusion 31a is formed in the through hole 30 and a spring 31 provided below the protrusion 31 (32) and a set screw (33) assembled to a lower portion of the spring (32) are inserted and fixed in order.

Description

Fixing Device of Supplementary Fork for Forklift

The present invention relates to an auxiliary fork fastening device for a forklift, and more particularly, to an auxiliary fork fastening device for a forklift, which is capable of easily removing the shaft without using a tool while preventing the auxiliary fork from being disengaged due to vibration and collision with nearby objects, And an auxiliary fork fixing device for a forklift which can easily perform the detachment operation of the auxiliary fork.

Forklifts are industrial vehicles used for lifting and transporting heavy cargoes and are widely used to move cargoes to nearby places at indoor workplaces or construction sites, or to load or unload cargoes in vehicles.

1 and 2, the forklift truck has a body 1 including an engine, and a mast assembly 2 is installed in front of the body 1.

The mast assembly 2 is provided with a mast rail 3 arranged in a vertical direction and a carriage 4 capable of moving up and down along the mast rail 3. The mast rail 3 is provided with a plurality of

The mast assembly 2 is provided so as to be slightly tilted toward the driver's seat by a tilt cylinder 10 (Tilt Cylinder).

The carriage 4 is lifted up and down by a lift chain 6 and a pair of forks 7 for lifting a load on the carriage 4 are mounted.

The pair of forks 7 are provided so as to be adjustable in width from left and right, and a back rest 5 for supporting the load is installed on the upper portion.

A driver's seat 9 is provided on the upper portion of the vehicle body 1 and an overhead guard 8 is provided on the driver's seat 9 to protect the driver. A counterweight 11 (counter weight) is provided behind the vehicle body 1.

On the other hand, the forklift may be operated by increasing the length of the fork 7. In this case, the auxiliary fork 20 is inserted into the original fork 7 as shown in Fig.

The auxiliary fork 20 includes a body portion 21 formed as a hollow rectangular plate so as to be fitted to the fork 7 and a fixing portion 22 formed on both ends of the body portion 21 consist of. The fixing portion 22 is formed with an insertion hole 23 into which the shaft 24 is inserted.

The shaft 24 is inserted into the insertion hole 23 of the auxiliary fork 20 to support the auxiliary fork 20 and a hole for inserting the elastic pin 26 is formed at one end of the shaft 24 .

After the auxiliary fork 20 is inserted into the fork 7, the shaft 24 is inserted into the insertion hole 23 of the fixing portion 22 and the elastic pin 26 is inserted into the shaft 24 at one end, Assembly of the auxiliary fork 20 is completed.

However, since the above-described conventional auxiliary fork fixing device has a structure in which the elastic pin 26 protrudes much from the shaft 24, there is a problem that the elastic pin 26 may come off due to vibration or collision with surrounding objects .

If the elastic pin (26) is removed during the operation, the shaft (24) may be detached and a safety accident may occur.

In addition, when the auxiliary fork 20 is not used, the elastic pin 26 must be stored separately. However, there is a problem that the elastic pin 26 itself is a small component and thus is very likely to be lost.

Japanese Patent Application Laid-Open No. 10-2011-0071413 discloses an auxiliary fork releasing apparatus for a forklift applied by the present applicant. This can effectively prevent the auxiliary fork from being separated from the forklift. However, have.

Patent Document 1: KR 10-2011-0071413 A

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the auxiliary fork fixing device from being exposed to the outside, have.

Another object of the present invention is to make it possible to easily mount the auxiliary fork while preventing the auxiliary fork fastening device from being detached unless artificially applied force is applied.

It is still another object of the present invention to prevent breakage of the auxiliary fork fixing device and to prolong the service life thereof.

It is still another object of the present invention to enable the detachment of the auxiliary fork in a short time and to easily detach the auxiliary fork without using a separate tool.

It is still another object of the present invention to prevent the auxiliary fork fixing device from being lost.

According to an aspect of the present invention, there is provided a forklift comprising: a body portion having a rectangular hollow portion to which a fork of a forklift is inserted; a fixing portion provided at one end of the body portion to surround both sides of the fork; An auxiliary fork having an insertion hole formed in a fixed portion of the auxiliary fork, and a shaft which is inserted in an insertion hole provided at one end of the auxiliary fork and connects the fork and the auxiliary fork, A protruding member having a hemispherical protrusion, a spring provided at a lower portion of the protruding member, and a set screw assembled at a lower portion of the spring are inserted into the through hole at one end thereof in the circumferential direction, And is fixed.

Further, the protruding member may further include a flange at a lower portion of the protruding portion protruding in the outer circumferential direction of the shaft.

In addition, a female threaded portion for screwing the set screw is formed in the through hole formed in the shaft.

In addition, a recess is formed in a lower portion of the through hole formed in the shaft to prevent the set screw from projecting to the outside of the shaft.

Further, another embodiment of the present invention is characterized in that an insertion hole for allowing the shaft to pass through is formed in the body of the fork, and the shaft is assembled through the insertion hole 23 of the auxiliary fork and the body of the fork .

According to the present invention, since the auxiliary fork fixing device is not exposed to the outside, there is an effect that the auxiliary fork fixing device collides with peripheral objects and is not released during movement or during operation.

In addition, the auxiliary fork can be easily mounted, and the auxiliary fork fastening device can be prevented from being detached unless artificially applied force is applied.

Further, the auxiliary fork fixing device is prevented from being damaged, and the service life can be extended.

Further, the auxiliary fork can be attached and detached within a short time, and the auxiliary fork can be easily detached without using a separate tool.

In addition, there is an effect that the auxiliary fork fixing device can be prevented from being lost.

1 is a front perspective view of a general forklift;
2 is a rear perspective view of a typical forklift;
3 is a perspective view showing a state in which an auxiliary fork is installed on a fork of a forklift;
4 is a rear perspective view showing an example of an auxiliary fork fixing apparatus according to the related art.
5 is a perspective view showing a first embodiment according to the present invention.
6 is an exploded view of the first embodiment according to the present invention.
7 is an assembled sectional view of a first embodiment according to the present invention.
8 shows a protruding member according to the invention.
FIG. 9 is a perspective view showing a second embodiment according to the present invention. FIG.

Hereinafter, a preferred embodiment of the auxiliary fork fixing apparatus according to the present invention will be described with reference to Figs. 5 to 9. Fig.

≪ Embodiment 1 >

As shown in FIGS. 5 to 7, the auxiliary fork fixing apparatus according to the first embodiment of the present invention includes a body portion 21 having a rectangular hollow portion for fitting a fork 7 of a forklift, An auxiliary fork 20 provided at one end of the fork 21 and having a fixing part 22 surrounding both sides of the fork 7 and an insertion hole 23 formed in the fixing parts 22, And a shaft 24 that is inserted into an insertion hole 23 provided at one end of the auxiliary fork 20 and connects the fork 7 and the auxiliary fork 20.

As shown in Fig. 6, the shaft 24 has a head 25 at one end and a through hole 30 in the other end in the circumferential direction.

A through hole 30 is formed with a projecting member 31 having a hemispherical projecting portion 31a and a spring 32 provided below the projecting member 31 and a set screw 33 .

8, the protruding member 31 may further include a flange 31b under the protruding portion 31a protruding in the outer circumferential direction of the shaft 24. [

The flange portion 31b prevents the projecting member 31 from falling out of the shaft 24 and supports the spring 32 provided at the lower portion thereof.

In the through hole 30 formed in the shaft 24, a female screw portion 34 for screwing the set screw 33 is formed. It is preferable that the female screw portion 34 is formed only to a half of the through hole 30.

A tool insertion groove (not shown) is formed in the head of the set screw 33 so that the set screw 33 can be easily assembled to the female screw 34.

When the set screw 33 is screwed into the female screw portion 34, the projecting member 31 and the spring 32 maintain a stable assembled state. Accordingly, when the auxiliary fork is used, it is possible to prevent the fixing device from being detached, and there is no need to prepare a separate fixing device.

A recess 35 is formed in a lower portion of the through hole 30 formed in the shaft 24 to prevent the set screw 33 from protruding to the outside of the shaft 24. Accordingly, when the set screw (33) is assembled to the shaft (24), it does not protrude to the outside.

Hereinafter, the process of attaching and detaching the auxiliary fork fixing apparatus according to the first embodiment of the present invention will be described.

The protruding member 31 and the spring 32 are inserted into the through hole 30 of the shaft 24 in order and the set screw 33 is inserted into the female threaded portion 34 of the through hole 30 using a tool, .

Since a tool insertion groove (not shown) is formed in the head of the set screw 33, the assembly can be easily assembled.

Subsequently, after inserting the auxiliary fork 20 into the fork 7, the shaft 24 is inserted into the insertion hole 23 of the auxiliary fork 20.

7, the protruding member 31 is inserted into the through hole 30 of the shaft 24 so that the shaft 24 can be easily inserted into the through hole 30 of the shaft 24 .

When the shaft 24 is completely assembled, the protruding member 31 is projected to the outer periphery of the shaft 24 again by the elastic force of the spring 32.

As a result, the shaft 24 is maintained in a stable fixed state, so that the shaft 24 is not released unless an external force is applied thereto.

In addition, since the fixing device is not exposed to the outside, it is possible to prevent the fixing device from being detached by collision with surrounding objects when moving or during operation, and it is not necessary to separately store the auxiliary fork fixing device such as elastic pins.

On the other hand, when the auxiliary fork 20 is disassembled, the shaft 24 may be pulled out while pushing the projecting member 31 with one hand. At this time, the protruding member 31 is inserted into the through hole 30 of the shaft 24, so that the shaft 24 can be easily removed.

Accordingly, it is not necessary to use a separate tool when disassembling the shaft 24. [

≪ Embodiment 2 >

In the second embodiment according to the present invention, as shown in Fig. 9, an insertion hole for allowing the shaft 24 to pass through is formed in the body of the fork 7, and a shaft 24 is inserted into the insertion hole. It is.

According to the second embodiment, since the shaft 24 is assembled through the insertion hole 23 of the auxiliary fork 20 and the body of the fork 7, the auxiliary fork 20 can be more stably fixed do.

Other matters are the same as those of the first embodiment described above, so duplicate descriptions will be omitted.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

1: Body 2: Mast assembly
3: Mast Rail 4: Carriage
5: Back Rest 6: Lift Chain
7: Fork 8: Overhead Guard
9: driver's seat 10: tilt cylinder (tilt cylinder)
11: Counter Weight
20: auxiliary fork 21:
22: fixing portion 23: insertion hole
24: Shaft 25: Head
26: elastic pin 30: through hole
31: projecting member 32: spring
33: Set Screw 34: Female thread portion
35:

Claims (5)

A body portion 21 having a rectangular hollow portion for allowing the fork 7 of the forklift to be inserted thereinto; a fixing portion 22 provided at one end of the body portion 21 to cover both sides of the fork 7; An auxiliary fork 20 having an insertion hole 23 formed in both fixing portions 22 and an insertion hole 23 provided at one end of the auxiliary fork 20, And a shaft (24) for connecting the auxiliary forks (20) to each other,
A through hole (30) is formed in one end of the shaft (24) in the circumferential direction,
In the through hole 30,
A protruding member 31 having a hemispherical protrusion 31a,
A spring 32 provided below the protruding member 31,
Wherein a set screw (33) assembled to a lower portion of the spring (32) is inserted and fixed in order. The method according to claim 1,
The auxiliary fork fixing device for a forklift according to claim 1, wherein the protruding member (31) further comprises a flange portion (31b) below the protruding portion (31a) protruding in the outer circumferential direction of the shaft (24). The method according to claim 1,
Wherein a female threaded portion (34) for screwing the set screw (33) is formed in the through hole (30) formed in the shaft (24). The method according to claim 1,
A recess 35 is formed in a lower portion of the through hole 30 formed in the shaft 24 to prevent the set screw 33 from protruding out of the shaft 24 Fixing device for auxiliary fork of forklift. The method according to claim 1,
An insertion hole for allowing the shaft 24 to pass therethrough is formed in the body of the fork 7 so that the shaft 24 is inserted into the insertion hole 23 of the auxiliary fork 20 and the body of the fork 7. [ And the second fork is fixed to the second fork.
KR20130085076A 2013-07-19 2013-07-19 Fixing Device of Supplementary Fork for Forklift KR20150010850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130085076A KR20150010850A (en) 2013-07-19 2013-07-19 Fixing Device of Supplementary Fork for Forklift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130085076A KR20150010850A (en) 2013-07-19 2013-07-19 Fixing Device of Supplementary Fork for Forklift

Publications (1)

Publication Number Publication Date
KR20150010850A true KR20150010850A (en) 2015-01-29

Family

ID=52482436

Family Applications (1)

Application Number Title Priority Date Filing Date
KR20130085076A KR20150010850A (en) 2013-07-19 2013-07-19 Fixing Device of Supplementary Fork for Forklift

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KR (1) KR20150010850A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220152830A (en) 2021-05-10 2022-11-17 김승환 Apparatus for preventing secession of secondary fork of forklift truck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220152830A (en) 2021-05-10 2022-11-17 김승환 Apparatus for preventing secession of secondary fork of forklift truck

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