JPS6022065Y2 - clamp device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a clamping device that is attached to a working machine of a construction machine and performs clamping work.

Conventionally, as this type of clamp device, for example,
Those described in Japanese Utility Model Publication No. 90377 and Japanese Utility Model Application Publication No. 50-119209 are known.

However, in the above-mentioned conventional clamping device, the clamp cylinder that opens and closes the clamp member protrudes greatly outside the clamp member, so the clamp cylinder may collide with obstacles such as cargo objects or structures during work and be damaged, or it may be difficult to operate in narrow spaces. When working with the clamp cylinder, there were problems such as the clamp cylinder hitting an obstacle and the clamp member not being able to open and close sufficiently, which hindered the work.

This idea was made in consideration of the above, and the first
A clamp device is provided in which a first clamp cylinder for driving the clamp member is disposed in a direction substantially perpendicular to the first clamp member, and a second clamp cylinder is attached to the first clamp member so as to fit in the direction facing the first clamp member. hand,
Each clamp cylinder is designed so that it does not get in the way of work.

An embodiment of this invention will be described in detail below with reference to the drawings.

In the figure, reference numeral 1 designates an arm of a working machine that is freely movable; reference numeral 2 designates a support stand pivotally attached to the tip of this arm; and reference numeral 3 designates a tilting link mechanism for rotating the support stand 2 about a pivot shaft 4.

A pair of brackets 5a and 5b are provided on the lower side of the support base 2, and this bracket 5a.

A pair of first clamp members 6a and 6b are pivotally attached to the clamp member 5b so as to be rotatable in opposite directions.

Arms 7a and 7b are provided upwardly on the pivot portions of each of the clamp members 6a and 6b, and one end of each arm 7a and 7b is connected to an auxiliary bracket 8a and 8b protruding from the support base 2, respectively. The other ends of the first clamp cylinders 9a, 9b arranged in a direction substantially perpendicular to the clamp members 6a, 6b are connected.

Further, the proximal ends of second clamp members 10a, 10b are pivotally attached to the distal ends of each of the first clamp members 6a, 6b.

Arms 10c and 10d protrude from the base end portions of the second clamp members 10a and 10b, and these arms 10c
, 10d are pivotally connected to one end side of the second clamp cylinders lla, llb.

The second clamp cylinders lla and llb are arranged so that the second clamp members 6a and llb fit within the ridges of the first clamp members 6a and 6b.
It is provided along at6b, and the other end is pivotally attached to the proximal end side of the first clamp members 6a, 6b.

As described in detail above, this invention has brackets 5a and 5b protruding from the support base 2 with an interval between them.
The proximal ends of a pair of first clamp members 6a, 6b are pivotally connected to a, 5b, and the arms protrude from the proximal ends of these first clamp members 6a, 6b. a, 7b and brackets 8a, 8b protruding from the support base 2, a first clamp cylinder 9
a, 9b are provided, and these first clamp cylinders 9a.

9b, each of the first clamp members 6a*6b can be opened and closed, and the proximal ends of the second clamp members 10a, 10b are pivotally connected to the tips of the first clamp members 6a, 6b,
Arms 10c and 10d protruding from the base ends of the second clamp members 10a and 10b are pivoted at one end to the first clamp members 6a and 6b so as to fit within the ridges of the respective first clamp members 6a and 6b. Second clamp cylinder 11a
, llb, the first clamp cylinders 9a, 9b and the second clamp cylinders lla, llb are pivoted.
b does not protrude significantly to the outside of the clamp members 6a, 6b.

As a result, the first and second clamp cylinders 9a,
There is no risk that 9b, 11a, 11b will be damaged by colliding with cargo handling objects or obstacles, or that hydraulic pressure will leak from the damaged area, and when working in a narrow space, the first and second
Clamp cylinder 9 at 9 by 11 a,
11b hits an obstacle etc. and each clamp member 6a
, 6by 10a, 10b cannot be opened or closed sufficiently, which may hinder work.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view;
Figure 2 is a partially broken view of Figure 1.
It is an arrow view. 2 is a support stand, 5a and 5b are brackets, and 6a. 6b is the first clamp member, ? a, 7b are arms, 8a,
8b is an auxiliary bracket, 9a, 9b are first clamp cylinders, 10a, 10b are second clamp members, 11a, 1
1b is a second clamp cylinder.

Claims (1)

[Scope of utility model registration request] Brackets 5a and 5b are provided protruding from the support base 2 with a gap between them, and base ends of a pair of first clamp members 6a and 6b are pivotally connected to these brackets 5a and 5b. First clamp cylinders 9a, 9b are provided between the arms 7a, 7b protruding from the base end of the support base 2 and the auxiliary brackets 8a, 8b protruding from the support base 2. The first clamp members 6a, 6b can be opened and closed, and a second clamp member 10a is provided at the tip of each of the first clamp members 6a, 6b.
10b, and these second clamp members 10
Arms 10c and 10d protrude from the base ends of a and 10b.
and a clamp device comprising second clamp cylinders lla and llb whose one end side is pivotally connected to the first clamp members 6a and 6b so as to fit in the extension of each of the first clamp members 6a and 6b, and whose other ends are pivotally connected. .