JPS61140498A - Manual fork shifter for forklift - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a manual forklift, which is one of the attachments for a forklift.

The manual fork shifter is a device that manually moves a pair of forks attached to the fork 7F in the horizontal direction to adjust the width between the forks, and is used to handle cargo of various sizes. is made possible.

``Prior Art'' FIG. 3 of the drawings shows the entire structure of a fork 77). As shown in FIG.
In general, a horizontally extending fin that is guided by a mast 2 and moves up and down 7) is fixed to a bracket 3 and has a fin 4, and a step or The fork 5 is hung by hooking seven hooks 6 provided at the upper end of the fork 5 into the groove. *When a load is placed on the fork 5, a rotational moment is generated on the body side of the forklift 1 around the latching point of the fork 5.In order to support the fork 5 against this rotational moment, the finger bar is A support par 7 is provided below the 4. Also, 7oh 2
5 Place the pack rest 8 so that the luggage on top does not fall behind you.
are supported at both ends of the finger bar 4 and the support par 7.

Various types of manual fork shifters have been developed and used in the past for use in such forklifts, and a typical configuration thereof is shown in FIG.

In Fig. 4, the screw body 1 has a right-handed spiral and a left-handed spiral.
0 is rotatably supported on the pack rest 8 parallel to the finger bar 4, and one end thereof is supported on the pack rest 8.
A handle 11 can be attached by protruding from the handle. Female thread members 12 are symmetrically screwed into the right-hand spiral portion and the left-hand spiral portion of the threaded body 10, respectively, and each female thread member 12 is fixed to the fork 5 by a piece bracket 13. In such a configuration,
When the threaded body 10 is rotated by the handle 11, each female threaded member 12 moves in opposite directions along the threaded body 10 since rotation is prevented by the fork 5.

As a result, the pair of forks 5 to which the female threaded member 12 is fixed are guided by the step on the upper edge of the finger bar 4 and slide in opposite directions to adjust their width.

In the conventional manual fork shifter 7 configured as described above, the screw body 10 is attached to the pack rest 8 so as not to be detachable, and the female threaded member 12 screwed onto the screw body 10 is attached to the fork 5. It is very difficult to remove the fork 5 from the fork 7F because it is firmly fixed to the fork 7F.

[Problem to be solved by the invention] Therefore, in the conventional technology, fork is called fork I) 7F
Since the forklift 7F cannot be removed from the finger bar, other attachments that are attached to the finger bar cannot be used, and the forklift 7F can only be applied to cargo handling and transportation work in a narrow range.

An object of the present invention is to provide extremely effective means for quickly eliminating the above-mentioned problems.

"Means for Solving the Problem" This invention provides an upper support bracket and a lower support bracket that are attached parallel to each other between a pair of side plates and that slidably support a fork, and that are parallel to the upper and lower support brackets. The upper support bracket consists of a screw body rotatably supported by the side plate, and a female thread member that is screwed into the screw body and fixed to the fork. The present invention is characterized in that the support bracket is configured to be removably fastened to the support par.

"Operation" In the above-described manual forklift of the forklift 7F of this invention, the entire manual forklift can be removed from the forklift together with the fork by releasing the fastened state between the lower support bracket and the support par. Embodiments Hereinafter, preferred embodiments of the manual fork shifter for a forklift according to the present invention will be described in detail with reference to the drawings.

Note that the same reference numerals are used to describe the same or corresponding parts as in the conventional configuration.

In FIGS. 1 and 2, a forklift to which the manual fork shifter of the present invention is applied has a finger bar 4 and a support par 7 similar to the conventional ones. The manual fork shifter 7 in this embodiment is of the type that is attached to each fork 5, and in the drawing, only one fork 5 is shown. The upper support bracket 15 and the lower support bracket 16, which have steps on their upper and lower edges, respectively, which engage with the seven hooks 6.9 and slidably support the fork 5, are parallel to each other. It is supported between a pair of side plates 14. A screw body 20 is rotatably supported on the pair of side plates 14 in parallel with the support brackets 15 and 16, and one end of the screw body 20 protrudes from the side plate 14 to rotate the screw body 20. A handle 11, ratchet, etc. can be attached thereto. Screw body 20
A female threaded member 12 is screwed into the fork 5 , and this female threaded member 12 is fixed to the fork 5 by a piece bracket 13 .

Seven hooks 17 are provided on the back surface of the upper support bracket 15 so that the upper support bracket 15 can be hooked onto a step formed on the upper edge of the finger bar 4. Further, the lower support bracket 16 overlaps the surface of the support bar 7.

Through holes 18 and 19 are formed in the lower support bracket 16 and the support par 7, and the pins 21 are inserted into the through holes 18 and 19 and are prevented from coming out by lynch pins 22, so that the lower support bracket 16 and a support par 7. The launch pin 22 has a spring ring 23 with two-position stability using a dead point, and after inserting the launch pin 22 into the bottle 21, the pin 21
By folding down the spring ring 23 so that it enters, the lynch bottle 22 is prevented from falling out from the bottle 21. Further, the through hole 18 of the lower support bracket 16 is counterbored so that the head of the bottle 21 does not get in the way of movement of the fork 5.

Since the manual fork shifter of the present invention constructed in this manner is attached to every 7-oh 25,
Another set of manual forks 7 is attached to the finger bar 4 symmetrically.

In the above-described configuration, when attaching the manual fork according to the present invention to the fork 7F, first hook the 7th hook 1 of the upper support bracket 15 onto the step on the upper edge of the finger bar 4, and then attach the lower support bracket 7).
The through holes 18 of 16 and the through holes 19 of the support par 7 are aligned, and then the bottles 21 are inserted into the through holes 18 and 19, and the lynch pins 22 are inserted into the tips of the bottles 21 to prevent them from coming out. This procedure fixes the manual fork 7 in place.

When operating the manual fork shifter 7 of the present invention, which is thus attached to the forklift 7F, the handle 11 is attached to one end of the screw body 20, and the screw body 20 is rotated. Since the female threaded member 12 screwed into the threaded body 20 is prevented from rotating by the fork 5, it moves straight along the threaded body 20 due to the rotation of the threaded body 20, and as a result, the fork 5 is attached to the upper support placket. 15 and the lower support bracket 16 as guides. After the fork 5 is placed in a predetermined position, the other manual fork 7 is worked in the same way to create the required width between the pair of forks 5.

If you want to remove the manual fork switch 7, just follow the installation procedure shown above in reverse order. By removing the manual fork 7 from the fork 4, the manual fork 7 can be easily removed from the fork 1) 7F together with the fork 5.

In this embodiment, the pin 21 and the lynch pin 22 are used as means for fastening the lower support bracket 16 and the support par 7, but it is also possible to fasten them together using bolts, for example.

"Effects of the Invention" Since the manual fork shifter 7F of the forklift 7F according to the present invention has the configuration and operation as described above, it can be easily installed by simply releasing the fastened state between the lower support bracket and the support par. The fork can be removed from the forklift along with the manual fork shifter, and various other attachments that can be attached to the finger bar can therefore be used, making it possible to carry out a wide range of material handling operations with one fork 1 Noah F. It has the effect of becoming.

[Brief explanation of drawings]

Figure tA1 is a front view showing an embodiment of a manual forklift for a forklift according to the present invention, Figure 2 is a sectional view taken along line A-A in Figure 1, and Figure 3 is a conventional general FIG. 4 is a side view of a forklift with the attachment section taken in section, and FIG. In the figure, 1 near oak 7, 2: mast, 3: 7 bracket, 4: finger bar, 5 near oak, 6.9.17: 7 hook, 7: support bar, 8: backrest, 10.20: screw body ,
11: Handle, 12: Female thread member, 13: Piece bracket, 14: @ plate, 15: Upper support bracket, 16
: Lower support bracket, 18.19: Through hole, 21: Pin, 22: Lynch bin.

Claims (1)

[Claims] In a forklift that has a horizontally extending finger bar fixed to a lift bracket that moves up and down guided by the mast, and a support bar that is provided below the finger bar and moves together with the finger bar, there is a mutual contact between a pair of side plates. an upper support bracket and a lower support bracket that are attached in parallel and slidably support the fork; a screw body that is parallel to the upper and lower support brackets and rotatably supported by the side plate; and the screw body. and a female threaded member fixed to the fork, wherein the upper support bracket is hooked to the finger bar, and the lower support bracket is removably fastened to the support bar. manual fork shifter.