JPH0529129Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an industrial vehicle such as a forklift that uses LP gas as fuel, and more particularly to an LPG cylinder support device having an improved cylinder tightening means.

[Prior Art] Several types of LPG cylinder support devices for industrial vehicles have already been proposed, and one of the devices that has been suitably implemented is a device having the structure shown in FIG. 3. This device uses the rear support of the head guard, and the cylinder holder 10 has a pair of left and right side plates 12a, 12b, and both side plates 12a, 12.
It consists of two support rods 14, 14 that connect b.
A hinge bracket 16 fixed to one side plate 12a is rotatably attached to a fixing bracket 20 provided on one rear column 18a of the head guard via a pivot shaft (not shown), and then attached to the other side plate 12.
The locking piece 22 extending from b is connected to the other rear strut 18.
It is configured to be locked to a fixing bracket 24 provided at b via a removable locking pin (not shown).

and installed on the cylinder holder 10.
As a mounting and tightening means for the LPG cylinder 26, the lower half ring 28b of the annular band 28 has an upper half ring 28a that can be expanded via a hinge member on the cylinder holder 10.
is fixed so that the hook 30 pivoted on the support rod 14 can be fitted into the expanded end of the upper half ring 28a, and the lower end of the cam piece 32 pivoted on the upper side of the hook 30 engages with the locking curved edge 28c extending at the unfolded end and pushes it down, and the upper half ring 2
It is configured to tighten the LPG cylinder 26 by elastic deformation of 8a.

[Problems to be solved by the invention] However, the locking curved edge extending to the upper half ring of the annular band was originally made of flat steel, and the cam piece If the tightening force is continuously applied, the elastic limit will be exceeded and the bend will gradually deform in the direction of extension. If this is left untreated, the latch may come off due to vibrations while driving, and the cylinder may become damaged. There is also the risk of the material falling off.

In addition, due to the fitting play of the hook with respect to the expanded end of the upper half ring including the locking curved edge and the axial play of the cam piece pivotally supported by the hook, the gap between the locking curved edge and the cam piece is There is a possibility that considerable displacement in the longitudinal direction may occur, and as a result, the tightening by the cam piece may become unstable.

The technical problem to be solved by the present invention is to create a single and simple means capable of dealing with the completely different problems mentioned above.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a stop plate that covers both sides of the deployed end including the locking curved edge extending on the upper half ring of the annular band. A structure is adopted in which the device is attached to both end surfaces of the deployed end portion.

[Function] Therefore, the expanded end of the upper half ring that extends from the annular portion to the locking curved edge is reinforced by the attachment of the stop plate, and the stop plate guides the cam piece and prevents interference therewith. This prevents displacement of the cam piece in the longitudinal direction with respect to the locking curved edge.

[Example] Hereinafter, an example of the present invention will be described based on the drawings. Note that parts that are the same as those of the conventional device are given the same reference numerals, and some of the illustrations are omitted.

In FIG. 2, the cylinder holder 10 for supporting the LPG cylinder 26 has a pair of left and right side plates 12.
a, 12b and two support rods 14, 14 that interconnect them. On the cylinder holder 10, there is one or more annular straps 28 for mounting and tightening the LPG cylinder 26. A hook 30 and a cam piece 32 corresponding to this are provided. Although not clearly shown in the figure, the cylinder holder 10
is pivotably supported on one rear column 18a of the head guard as in the conventional device, and is pivotably supported on the other rear column 18a.
The pivot end is locked by 8b. The above-mentioned rotation of the cylinder holder 10 causes the LPG cylinder 26 to open when the engine hood 50 is opened rearward.
However, the cylinder holder 10 is not necessarily placed in the rear column 18.
It is not limited to those attached to the seats 52a and 18b, but may be fixedly attached to the weight 54, for example, via a bracket or the like, without interfering with the seat 52.

Figure 1 shows the support rods 1 that constitute the cylinder holder 10
4 and 14 are enlarged views of the cylinder tightening means disposed on the cylinders 4 and 14. In FIG. 1, the lower half ring 28b of the annular band 28 is fixed on the support rods 14, 14 by welding or the like, and the paired upper half ring 28a is attached to the lower half ring via a hinge member 29. 28b, and is expandable in a plane orthogonal to the support rod 14. A bracket 31 is attached to one support rod 14.
A hook 30 is pivotally supported through the upper half ring 28, and the hook portion 30a, which is bent into a substantially rectangular shape,
The upper half ring 28 is rotated in the same plane as the development plane of a.
It can be fitted into the expanded end portion including the locking curved edge 28c extending upwardly in the direction a. The above hook part 30
A collar 32a fixed to the middle part of the cam piece 32 is loosely fitted to the upper side of the figure a, and the cam piece 32 rotates the hook 30 independently within the same rotation plane with the upper side of the hook part 30a as a pivot. A round bar-shaped engager 32 is movable and fixed to the lower end thereof.
b engages with the locking curved edge 28c, and the cam piece 32
Due to the cam action accompanying the rotation of the locking curved edge 28
c can be pressed downward. Note that the illustrated upper edge of the cam piece 32 is bent at a substantially right angle because its bent end 32c is connected to the upper half ring 28a.
Although not shown, the hook portion 30a is configured to interfere with the hook portion 30 to limit excessive rotation of the cam piece 32.Also, although not shown, the hook portion 30a is provided with a length that is adjusted relative to the base of the hook portion 30, for example, via an adjustment screw. Can be configured to be adjustable. A particularly novel structure of the present invention is that stop plates 33, 33 that cover both sides of the deployed end including the locking curved edge 28c are attached to both end surfaces of the deployed end.

Therefore, in the device of the present invention, the LPG cylinder 26 is placed on the lower half ring 28b of the upper half ring 28a of the annular band 28 in an open state, and the upper half ring 28a is placed on the LPG cylinder 26. The hook 30 and the cam piece 3 are in a connected relationship after being reversely crowned.
2, the LPG cylinder 26 is tightened through the upper half ring 28a, but the hook 3
When the hook portion 30a of 0 faces the upper half ring 28c, the engaging member 32b is generated in the fitting clearance between the hook portion 30a and the locking curved edge 28c, and at the respective pivot points of the hook portion 30 and the cam piece 32. The locking curved edge 28c is skillfully guided by the stop plates 33, 33 and prevented from slipping off, without being bothered by longitudinal positional deviation with respect to the locking curved edge 28c, which appears as a sum of axial play. 28c.

The tightening force of the LPG cylinder 26 applied via the locking curved edge 28c of the upper half ring 28a is applied until the pivot shaft of the cam piece 32 and the engager 32 are aligned with the pivot shaft of the hook 30. When the cam piece 32 is rotated to the point position, the cam piece 32 reaches its maximum value, and rotation beyond this point is limited by the interference of the bent end 32c of the cam piece 32 with the upper half ring 28a. The reverse rotation of the piece 32 is prevented by the elastic reaction force of the upper half ring 28a, and a stable tightened state is maintained.
The expansion end is reinforced by the retaining plates 33, 33 due to the continuation of such tightening force.
It can sufficiently withstand the load applied to 8c.

[Effects of the invention] As detailed above, the present invention provides a stop plate that covers both sides of the deployed end including the locking curved edge extending on the upper half ring of the annular band. Since the expanded end of the upper half ring that extends from the annular part to the locking curved edge is reinforced by the attachment of the stopper plate, the bending of the locking curved edge is prevented. Since it can sufficiently withstand the tightening force acting in the direction of extension, the risk of the cylinder falling off due to deformation of the locking curved edge can be eliminated, contributing to longer life of the device. The lower end of the cam piece is guided and interfered with to prevent longitudinal displacement of the cam piece relative to the locking curved edge, so the lower end of the cam piece is reliably aligned with the locking curved edge, resulting in a stable tightening condition. can be achieved and maintained.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the device of the present invention, particularly showing the tightening means in an enlarged manner, Fig. 2 is a side view showing the entirety of a meandering lift equipped with the device of the present invention, and Fig. 3
The figure is a perspective view showing a conventional LPG cylinder support device. 10... cylinder holder, 14... support rod, 28...
...Annular band, 28a... Upper half ring, 28b... Lower half ring, 28c... Locking curved edge, 29... Hinge member, 3
0... Hook, 30a... Hook portion, 32... Cam piece, 32a... Collar, 32b... Engagement element, 33
...Stopping plate.

Claims (1)

[Scope of utility model registration request] a cylinder holder supported on the vehicle body; a lower half ring fixed to the cylinder holder; a pair of upper half rings expandable via a hinge member; an extended locking curved edge, a hook whose base end is pivoted to the cylinder holder and which can be rotated in the same plane as the deployment surface of the upper half ring and fitted into the deployment end; A cam piece whose middle portion is pivotally supported on the upper side of the hook, rotates independently in the same rotation plane as the hook, and whose lower end engages with the locking curved edge, and the locking curved edge. An LPG cylinder support device for an industrial vehicle, comprising stop plates attached to cover both sides of the expanded end.