JPH0636061Y2 - Forklift attachment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an attachment of a forklift for cargo handling work.

<Prior Art> A forklift is known in which a fork moves up and down or left and right along a mast attached to the front of a vehicle body for loading and unloading work. Various forms are applied according to working conditions such as weight, storage method and the like.

<Problems to be Solved by the Invention> In the clamp type in which the attachment holds the luggage from side to side, the pair of plates facing each other in the left and right direction is moved and adjusted in the left and right direction to sandwich the luggage.

In this case, there is no problem as long as the load is rigid, but if the load is soft or elastic, it may be damaged when firmly pinched, or it may not be able to be pinched depending on the deformed state of the load.

For example, in a tire factory or the like, when loading and unloading a plurality of stacked tires, it is not possible to hold all tires of different sizes in which a pair of left and right plates are stacked with a uniform gripping force.

<Means for Solving the Problems> The present invention provides an attachment for a forklift that solves the above-mentioned problems of the prior art, and its characteristic configuration is that the mast in the front of the vehicle body is guided to move up and down. A pair of left and right brackets, which are guided to the body so that they can be moved in the left-right direction, are arranged in a plurality of steps in the up-down direction. The base end is fixed.

<Operation> With the above configuration, a pair of left and right gripping metal fittings that oppose each other on the left and right can independently set the opposing distance by adjusting the left and right positions. By flexing the leaf spring on the metal fittings, the strong holding force by hydraulic pressure can be escaped, it can be clamped according to the form of the luggage, damage of the luggage can be prevented, and elastic luggage can also be reliably clamped. .

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is a vehicle body, and 2 is a mast which is erected in front of the vehicle body 1. As is well known, an elevating body 3 is guided by the mast 2 so as to be movable up and down.

Reference numeral 4 denotes a frame-shaped frame attached to the front surface of the elevating / lowering body 3. As shown in FIG. 2, a pair of left and right brackets 5 can be laterally moved and adjusted on the frame 4, and a plurality of vertical stages can be provided. It is arranged in. As shown in FIG. 2, the mechanism for adjusting the movement of the bracket 5 in the left-right direction has a linear guide rail 6 provided laterally on the frame 4 and a slide block 7 slidably guided by the linear guide rail 6. The bracket 5 is fixed to the slide block 7.

Further, a pair of left and right cylinders 9 are installed on the frame 4 in an axial direction parallel to the linear guide rails 6, and the cylinders 9 and the brackets 5 are connected via a connecting plate 10.

To the bracket 5, a base portion of a gripping metal member 8 made of a leaf spring material is fixed so as to face left and right with its tip facing forward. The leaf spring material of the picking metal fitting 8 changes the spring constant according to the shape and size of the luggage.

Since the present invention has the above-described structure, the entire frame of the scissors metal fittings 8 having a plurality of stages is moved up and down when the frame 4 is moved up and down by the up and down movement of the elevating body 3.

Further, the pair of right and left sandwiching metal fittings 8 of each stage move in the left and right directions opposite to each other by the actuation load of the cylinder 9 of each stage to expand or contract the facing distance.

Therefore, as shown in FIG. 2, when the width of the luggage W is large or small, the distance between the sandwiching metal fittings 8 is adjusted and held. In this holding, for example, in the case of tires in which luggage W is stacked, the gripping metal fitting 8 is used even if the tire sizes are different.
Is capable of partially clamping depending on the tire size, and the strong clamping force due to the hydraulic pressure of the cylinder 9 is loaded by the bending of the leaf spring material of the clamp metal fitting 8, and the tire is clamped without deformation. It is possible to

<Effects of the Invention> As described above, according to the present invention, a pair of left and right brackets, which are guided to be movable in the left-right direction by an elevating body that is guided to move up and down by a mast in the front of the vehicle body, are arranged in a plurality of stages in the vertical direction. However, since the pair of left and right brackets has a structure in which a pair of left and right gripping metal fittings made of a leaf spring material are opposed to each other and the base ends thereof are fixed to each other, the width of the vertically stacked indeterminate shape is different. The load can be clamped according to its width, and the clamping force due to the strong hydraulic pressure is released by the bending of the leaf spring of the gripping metal fitting, so it is possible to carry out cargo handling work while preventing damage or deformation of the load, In particular, it has an optimum effect on the handling of elastic cargo.

[Brief description of drawings]

FIG. 1 is a side view of the present invention, and FIG. 2 is a plan view. 1 ... Car body, 2 ... Mast, 3 ... Lifting body, 4 ... Frame, 5
… Brackets, 6… Linear guide rails, 7… Slide blocks, 8… Clamps, 9… Cylinders, 10… Coupling plates.

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right brackets, which are guided in a vertically movable manner so as to be movable in the left-right direction, are arranged in a plurality of stages in the vertical direction on an elevating body that is vertically movable and guided by a mast in front of a vehicle body. Attachment for a forklift characterized in that the base ends of the gripping metal fittings made of leaf springs that extend to the left and right are opposed to each other and fixed to each other.