JPH0435355Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a bale clamp device, which is one of the attachments of a forklift, and in particular,
This invention relates to a side rest that is attached to a clamp arm to prevent cargo from collapsing.

[Prior Art] A general bail clamping device is shown in FIG. 6 of the drawings. When such a bail clamp device is used to clamp cargo stacked in multiple stages, there is a risk that the cargo in the upper tier that is not clamped by the clamp arms may collapse. Therefore, conventionally, the side rest 2 is fixed to the upper surface of the clamp arm 1 with bolts 3, etc., and the load is supported by the surface of the side rest 2 on the machine center side (load support surface) to prevent the load from collapsing. .

In this specification, the term "load supporting surface" refers to the surface formed by the edge of the frame constituting the side rest 2 on the side of the center of the machine, and the term "clamping surface" of the clamp room 1 refers to the surface on which the load is supported. On the surface where
If a pad is attached to the clamp arm 1, this refers to the surface of the pad.

[Problems to be solved by the invention] In the conventional configuration as described above, if the side rest 2 comes into contact with the load before the clamp arm 1, the clamping force of the clamp arm 1 will be insufficient, so the side rest 2 The load supporting surface of is located outside the clamp surface of the clamp arm 1. Therefore, when clamping, as shown in FIG. 7, a gap was created between the load 4 and the side rest 2, and the load was not completely prevented from collapsing.

The purpose of this invention is to solve these problems.

[Means for solving the problem] The bale clamp device according to this invention has a side rest for preventing cargo from collapsing, which is attached to the upper surface of each left and right clamp arm so as to be slidable in the same direction as the movement direction of the clamp arm. , a spring member that presses the siderest toward the center of the machine, and a stopper that supports the siderest at a position where the load supporting surface of the siderest is closer to the center of the machine than the clamping surface of the clamp arm when not clamped. It is characterized by

[Function] In the bail clamp device configured as described above, the side rests are pressed against the cargo, and the cargo can be clamped not only by the clamp arm but also between the side rests.

[Embodiments] Hereinafter, preferred embodiments of the bail clamp device according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a clamp arm 10 of a bale clamp device to which this invention is applied. Two guide rails 11 are provided on the upper surface of the clamp arm 10 and extend in the direction of movement of the clamp arm 10.
is fixed. A carrier 13 fixed to the lower surface of the side rest 12 is fitted into these guide rails 11, and the side rest 12 can slide along the guide rail 11 in the same direction as the moving direction of the clamp arm 10. Note that it is preferable to attach a liner to the guide rail 11 or the carrier 13 so that the carrier 13 and the guide rail 11 can slide smoothly.

A spring stopper 14 is fixed to the lower part of the side rest 12, and a compression spring 16 between this spring stopper 14 and a spring holder 15 bolted to the upper surface of the clamp arm 10 causes the side rest to be fixed. 12 is always pressed toward the center of the machine. Further, in order to prevent the side rest 12 from falling off the guide rail 11 due to the pressing force of the compression spring 16, a stopper 17 is installed on the clamp arm 10 between the guide rails 11. This stopper 17
The position where the side rest 12 is supported by is
The load supporting surface of the side rest 12 is the clamp arm 1
The position is slightly closer to the center of the machine than the clamping surface of side rest 1 (Fig. 2).
The portion 18 that comes into contact with the second stopper 17 is cut out to an appropriate depth.

In such a configuration, the operation of the bail clamp device according to this invention will be described next.

As mentioned above, the side rest 12 of this bail clamping device is in the second position when not clamped.
As shown in the figure, the load supporting surface is located closer to the center of the machine than the clamping surface of the clamp arm 10. Therefore, as shown in FIG. 3, when clamping loads 20 stacked in multiple tiers, first, the load supporting surface of the side rest 12 is connected to the load 20 in the upper tier.
Touches 0. Furthermore, if the distance between the clamp arms 10 is narrowed, the side rest 12 will become closer to the guide rail 11.
When the clamp arm 10 comes into contact with the load 20, the clamp surface and the load supporting surface become the same surface. In this way, the load 20 is transferred to the clamp arm 10
It is in a clamped form between the side rests 12 and between the side rests 12.

Further, as shown in FIG. 4, when the luggage 20a on the upper stage is smaller than the luggage 20b on the lower stage, if the difference is small, the load supporting surface of the side rest 12 comes into contact with the luggage 20a, thereby preventing the luggage from collapsing. On the other hand, as shown in FIG. 5, when the width of the upper luggage 20a is larger than the lower luggage 20d, conventionally, the side rest 12 becomes an obstacle and the width of the lower luggage 20d is insufficient. Although it was not possible to apply a clamping force, in this invention, the side rest 12 is pushed by the luggage 20c and moves to the outside of the machine, so the lower luggage 20d can be firmly clamped between the clamp arms 10. I can do it.

[Effects of the invention] As described above, according to this invention, the side rest for preventing cargo from collapsing is pressed against the cargo by the spring member, and no gap is created between the side rest and the cargo. This has the effect of dramatically improving the collapse prevention effect.

[Brief explanation of drawings]

Fig. 1 is an exploded partial perspective view showing one clamp arm and side rest of a bale clamp device according to this invention, Fig. 2 is a schematic front view showing the bale clamp device according to this invention in an unclamped state, and Fig. 3 is a diagram similar to Figure 2 when clamping,
Figure 4 is a diagram of clamping when the load on the upper tier is smaller than the luggage on the lower tier, Figure 5 is a diagram of clamping when the load on the upper tier is larger than the luggage on the lower tier, and Figure 6 is a diagram of a general bale. FIG. 7 is a perspective view showing how a conventional side rest is attached to a clamping device, and a schematic diagram when the conventional configuration is clamped. In the figure, 1, 10... Clamp arm, 2, 12... Side rest, 11... Guide rail, 13... Carrier, 16... Compression spring, 17... Stopper,
20...Luggage.

Claims (1)

[Scope of utility model registration request] A side rest to prevent cargo from collapsing is attached to the upper surface of each left and right clamp arm so that it can slide in the same direction as the movement direction of the clamp arm, a spring member that presses the side rest toward the center of the machine, and a non-clamp and a stopper member that supports the side rest at a position where the load supporting surface of the side rest is closer to the center of the machine than the clamp surface of the clamp arm.