JPS62255396A - Side shift device for industrial car - 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 side shift device for an industrial vehicle such as a forklift, and more particularly to a side shift device for an industrial vehicle such as a forklift. The present invention relates to a side shift device in which a shift operation is performed using this shift finger bar and shift cylinder.

The traditional technology shift finger bar is a side shift device,
A bracket is disposed on the lower finger bar of the carriage, and a shift cylinder is connected across this bracket and the side beam of the shift finger bar, and the shift finger bar is connected by the first operation of the shift cylinder. The lower part 7 of the bracket 1 carriage described above is fixed to the lower part 7 of the carriage by melting and forging, but since the carriage is a dedicated part, it is extremely disadvantageous in terms of cost. Therefore, Utsukai 60-72498
As shown in the publication, upper and lower hooks are attached to the back of the bracket for positioning in the vehicle width direction, and these upper and lower hooks are connected to the upper and lower edges of the lower finger bars of the carriage. There is one that is attached to the back of the lower hook (= plate l bolt to prevent it from coming off) so that it can be attached to the bracket.

The problem that this invention seeks to solve is that the upper hook and the plate engage with the back side of the lower finger bar to prevent it from coming off forward, and the upper hook engages with the sides of the pair of lift brackets of the carriage. At the same time, the lower hook engages with the notch formed under the lower finger bar, and the position in the IX width direction is determined, but there are assembly errors and When the shift cylinder is operated, the unavoidable C2 gap is created due to molding errors (not only does the N2 bracket shake and cause an unpleasant hitting sound, but this looseness also causes the Eribolt to loosen and cause the rattle! However, since the upper footer is positioned by engaging with a pair of lift brackets, the dimension between the load application points of the upper and lower hooks is restricted to a small size, so when the shift cylinder is operated, the racket is replaced. The load is very heavy (,
It is necessary to increase the thickness of the bracket to ensure rigidity. As a result, as the plate thickness of the bracket installed on the curved surface C2 of the lower finger bar increases, the front overhang of the side shift device becomes thicker.
The increased weight will reduce cargo handling capacity. Second, use the upper and lower hooks to attach the bracket to the lower finger bar. The bracket must be attached to the lower finger bar, which impairs assembly work efficiency.

Therefore, the present invention eliminates the problem of the bracket returning to its original position, and also makes it possible to make the plate thickness of the bracket as thin as possible, thereby reducing the front overhang and weight, thereby increasing the cargo handling capacity. , History I: To provide a side shift device for an industrial vehicle that can improve assembly workability.

Rear side of the lower bar of the shift finger bar I: The front side of the lower finger bar of the carriage (while the two-layer roller is arranged, the back side of the lower part C; = 1 to the bolt) is temporarily fixed in advance. , shift fingano (- carriage r;
In the next use state, the lower T@5 finger bar of the carriage is engaged with the upper and lower edges C, and the temporary fixing bolt is removed, and the upper edge of the lower finger bar is fixed with the two bolts. A guide hole for receiving the roller is formed in the shift bracket base that supports the front surface of the lower finger bar, and a bracket on the upper edge of the shift bracket base is erected, and the shift cylinder is attached to the bracket. Connect one end of the.

Operation When the shift finger bar is engaged with the carriage C and set, the shift bracket base, which is temporarily fixed to the lower part and the back part C of the shift finger bar, engages with the upper and lower edges of the lower finger bar of the carriage. Even if you remove the temporary fixing bolt l in this state, the shift bracket base will be held by the lower finger bar and remain tight, so fix the upper edge C of the lower finger bar with the bolt that removed the shift bracket base. Then, the shift cylinder is connected to straddle the bracket on the upper edge side of the shift bracket base and the shift finger bar.

Example Hereinafter, one embodiment of the present invention will be described in detail together with the drawings.

In Figures 1 to 3, 1 point above, below finger par 2.3
This carriage consists of a pair of lift brackets 4.4 fixed by melting across these upper and lower finger pars 2.3, and this carriage lti can freely raise and lower the inner mast C2 of the mast 1 unit (not shown in the figure). A liner 5 is attached to the upper edge of the upper finger bar 2, while
A notch 6 for positioning the shift bracket base 16 is formed at the center of the lower edge of the lower finger bar 3.

7 is an upper bar 8, a lower bar 9, and these upper bars 8
, a shift fin cover that includes a pair of side beams 10 and 10 that are welded and fixed across the lower par 9f,
4i period upper 8. Various attachments such as a fork (not shown) are attached to the lower bar 9. side beam to
The head 11 is fixed by melting across the upper end of the head 11, and the shift finger par 7 engages with the upper finger bar 2 of the carriage 1, and the side beam (to, to)'F: end. The self-removable end rear surface C is attached by engaging the jaw 12 with the lower finger bar 3 and sliding the carriage 1 l=fw' in the @ direction. (9) A roller accommodating portion 13 is recessed on the back surface of both measuring portions of the lower bar 9, and this roller accommodating portion 13
The lower finger part 3 of the carriage 1 is attached to the bottom surface C by a pin 15, with approximately half of the abutting roller 14 accommodated therein.

Reference numeral 16 denotes a horizontal shift bracket base on the front side of the lower finger bar 3 of the carriage 1, which has flanges 17 bent and formed on both sides of the upper edge, and a thick arrow part 6 on the back side of the center of the lower edge. A loose fitting flange, for example, a seven flange 18 made of a round bar material is provided protrudingly. The shift bracket base 16 is formed with a pair of horizontally elongated guide holes 19 for receiving the rollers 14, and one of the flanges 17 on the upper edge is provided with a bracket 20'Y standing upright. A bolt insertion hole 21 is formed at the end of each flange 17, 17 on the upper edge, and this bolt + i manhole 21
Fix the bolt 22 to the upper edge of the lower finger bar 3 through the V and 3! Z) It looks like this.

A bolt insertion hole 23 is formed near the upper edge of the lower par 9 of the side beam 10 of the shift finger par 7. On the other hand, a bolt insertion hole 23 is formed in the upper edge C of the shift bracket base 16. A screw hole 25'e is formed corresponding to the bolt insertion hole 23, and the bolt 22 is inserted into the bolt insertion hole 23° screw hole 25 of the shift bracket base 16. They are screwed together and temporarily fixed to the back of the lower bar 9 of the shift finger par 7 in advance.

Regarding the above-mentioned installation of the shift bracket base 16 to the lower finger bar 3, the shift finger bar 7t
#As mentioned above, C head 11. Joe 12t.

When the upper and lower finger bars 2° 3 of the corresponding carriage 1 are engaged and installed so as to be slidable in the width direction of the carriage ICIU, the upper edge of the shift bracket base 16 is attached to the back of the lower par 9 (temporarily fixed with two The 7 flange 17 of the lower finger bar 3 engages with the upper edge of the lower finger bar 3, and the plunger 18 of the lower edge engages with the notch 6 in the center of the lower edge of the lower finger bar 3. It is positioned and held by the bar 3. Then, remove the temporary fixing bolt 22, and fasten the flange 17 on the upper edge of this pole 22C to the upper edge of the finger par 3. , which covers the front surface of the lower finger bar 3 and is firmly fixed. And shift cylinder 2
6 is the bracket 20 of this shift bracket base 16
and one side beam 10 of shift finger par 7
According to the above embodiment, the bracket 20 connected to one end of the shift cylinder 26 is connected to the flange 17 on one side of the upper edge of the shift bracket base 16. The shift bracket base 16 covers the front surface of the lower finger bar 3 of the carriage 1, and
The flanges 17 and 18 on the lower edge are connected to the lower finger bar 3.
Notches 61 on the upper edge and lower edge: The bolts 2 are attached to the upper edge of the upper edge flange 17'Y of the lower finger bar 3.
2 and is firmly fixed to this lower finger bar 3, so there will be no looseness at all. 9. The roller 14 is the lower bar 9 of the shift finger par 7.
Roller accommodating section 131 on the back = accommodating arrangement, and
Since the roller 141 comes into contact with the front surface of the lower finger 3 of the carriage 1 through the guide hole 19 of the shift bracket 16, it is possible to suppress the accumulation of dust as much as possible. Smooth shift operation of the fin carper 7 can be maintained. Furthermore, the shift bracket base 16 has shift fins 7'7-
The back of the lower bar 9 of Par 7 (; It is temporarily fixed in advance with bolt 22L2, and as mentioned above, the shift finger
By installing the bar 7t carriage 1sin, the shift bracket base 16 no flange 17, '18
are the upper and lower RC of the lower finger bar 3 of the carriage L:
Since it is engaged and held, the temporary 1t bolt 22
The shift bracket base 16 can be installed on the carriage 1 side f as part of the installation work of the shift finger bar 7 by tightening the flange 17 on the upper edge of the bolt 2212 to the top i of the lower finger bar 3. Therefore, when the shift finger bar 7 is shifted by the shift cylinder 26, the shift bracket base 1
Considering two loads f acting on bracket 2,
0 shift cylinder 26 connection point l: the product of the acting moment Mid, the operating force F of the shift cylinder 26, and the distance/l between the fixed point of the bracket 20 and the connection point of the shift cylinder 26, that is, M=F, It is represented by t.

The moment that acts on this bracket 20 is the moment that acts on the fixed point of the bracket 20, which is the center of the engagement part between the flange 18 on the lower edge of the shift bracket base 16 and the notch 6. .Therefore,
This moment M is the product of the span L between the fixed points 4i1J (from the center of the engaging portion to the bracket) and the load 71w acting on the shift bracket base 16, that is, M=W,L. On the other hand, since this span L can be set arbitrarily large within the entire length range of the shift bracket base 16 without being subject to any dimensional restrictions, the load W acting on the shift bracket base 16 can be made as small as possible. As a result, the shift bracket base 16
if @i#i! Since it can be made as thin as possible, the front overhang t of the side shift device can be reduced, and the weight tv can be reduced, so the cargo handling capacity can be increased accordingly.

Effects of the Invention As described above, according to the present invention, the shift bracket base is bolted to the upper edge of the lower finger bar of the carriage.
The shift bracket base is temporarily fixed to the lower back of the shift finger bar, and the shift finger bar l carriage? : By installing it, it will be secured and held by the lower finger bar, so remove the temporary fixing bolt l and work on the bolt as described above. It has the advantage of being able to be installed as part of the shift finger bar V&cleaning work, thus further improving work efficiency. Since the front surface of the lower finger part is passed through the guide hole of the bracket base, it is possible to suppress the adhesion and accumulation of dust.
A smooth shift operation can be performed. Furthermore, the bracket that connects the shift cylinder l is provided upright on one side of the upper edge of the shift bracket base, and the dimension between this bracket fixing point and the center point of the lower edge engagement part of the shift bracket base is the same as that of the shift cylinder. It is possible to set the span between the power application points of the shift racket as small as possible without imposing dimensional restrictions on the span between the power application points (optional). It is possible to reduce the thickness of the bracket base,
As a result, the front overhang amount and the weight of the side shift device can be reduced and the cargo handling capacity can be improved, which has a great practical effect.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention, FIG.
FIG. 3 is a cross-sectional view corresponding to lines 1--1 and 1-1 in FIG. 1, and FIG. 4 is a front view of the shift bracket base. 1... Carriage, 2... Upper fin/gerber -5
3... Lower finger bar, 7... Shift finger bar, 8... Upper bar, 9... Lower bar, 14
...Roller, 16...Shift bracket base, 1
9... Guide hole, 20... Bracket, 22...
Bolt, 26...shift cylinder.

Claims (1)

[Claims] (1) In a structure in which a shift cylinder is connected across a carriage and a shift finger bar that is slidably attached to the upper and lower finger bars of the carriage in the vehicle width direction, the carriage is attached to the back of the lower bar of the shift finger bar. A roller is provided that comes into contact with the front of the lower finger bar of the lower bar, while the roller is temporarily fixed to the back of the lower bar with a bolt, and when the shift finger bar is mounted on the carriage, the roller is placed on the lower finger bar of the carriage.
A guide hole for receiving the roller is formed in a shift bracket base that engages with the lower edge and is bolted to the upper edge of the lower finger bar after the temporary fixing bolt is removed and covers the front surface of the lower finger bar. A side shift device for an industrial vehicle, characterized in that a bracket is provided upright on one side of an upper edge of the shift bracket base, and the shift cylinder is connected to the bracket.