JPS5925479Y2 - clamp - Google Patents

Description

[Detailed description of the invention] This invention relates to clamps, especially test tubes, flasks,
This invention relates to a clamp that grips lightweight objects such as laboratory instruments such as burets and burners, and other physical and chemical equipment, and fixes them to the supports of the clamp table.

Generally, the above-mentioned type of clamp needs to grip an object to be gripped, such as a test tube, and must be fixed to a support of a clamp stand at an arbitrary position (height/circumferential direction).

For this reason, conventionally, it was necessary to provide a separate tightening means for fixing the clamp to the support, which resulted in a complicated structure and troublesome operation.

In view of the above, the object of this invention is to provide a clamp that can grip an object by tightening in only one direction, can fix the clamp to a support, and is simple in structure and operation.

The gist of this invention is that one end of the longitudinal member has a fitting hole that can be fitted with the column of the clamp table, and the other end of the longitudinal member has a fitting hole that is perpendicular to the longitudinal direction. an L-shaped or U-shaped arm having a threaded hole in the member; a pressing member having a block for grasping an object attached to one end thereof, threadedly engaged with the threaded hole and movable back and forth in the longitudinal direction of the arm; The receiver disposed on the arm near the support is a clamp consisting of a member.

An embodiment of this invention will be described below based on the drawings.

The clamp consists of an arm 1, a pressing member 2, and a receiver member 3.

In the embodiment of FIGS. 1 and 2, the L-shaped arm 1 has a fitting hole 5 at one end of its longitudinal member 6a, into which the column 4 can be fitted, and the arm can be inserted through the fitting hole 5. 1 is attached to the column 4 so as to be vertically movable and horizontally rotatable.

The other end of the longitudinal member 6a of the arm 1 is provided with a member 6b that projects upward and extends perpendicularly to the longitudinal direction, and a screw hole 7 is provided in this member 6b in parallel to the longitudinal direction of the arm 1. It is being

The pressing member 2 is formed of a T-bolt 9 with a block 8 for gripping an object attached to the tip thereof, and the T-bolt 9 is screwed into the threaded hole 7, so that the pressing member 2 can be moved back and forth in the longitudinal direction of the arm 1. ing.

The block 8 is rotatable with respect to the T-bolt 9 so that the object 10 to be gripped, such as a test tube, can be held at an arbitrary inclination angle.

The receiver member 3 is made of an elastic member such as rubber, and the arm 1
It is fixed in the vicinity of the fitting hole 5 along the fitting hole 5 with an adhesive or the like.

Next, how the above-mentioned clamp is used will be explained.

First, the arm 1 of the clamp is attached to the support column 4 through the fitting hole 5, moved to a required height, and stopped at a required outer circumferential direction.

Next, an object to be grasped 10 such as a test tube is inserted between the block 8 and the support member 3, and the T-bolt 9 of the pressing member 2 is screwed.

Then, the object to be gripped 10 is gripped by the block 8 and the receiver member 3.

When the T-bolt 9 is further screwed in and tightened, the receiver member 3 deforms toward the fitting hole 5 side, that is, the support post 4 side, and comes into contact with the support post 4, and the reaction force from the support post 4 is applied to the support member 3, Thing 1
0, acts on the member 6b of the arm 1 via the pressing member 2.

That is, it acts on the eccentric position in the vertical direction on the other end side of the member 6a of the arm 1.

Therefore, the other end side of the member 6a of the arm 1 receives a downward rotational force, and the lower end of the fitting hole 5 bites into the support column 4.
The arm 1, that is, the clamp, is securely fixed to the support column 4 so that it cannot move vertically or rotate horizontally.

When you want to move the clamp again, press T of the pressing member 2.
If bolt 9 is loosened, the clamp will be able to move up and down and rotate the four pillars again, and move the clamp to the specified position.
Just repeat the above operations.

In the above embodiment, the pressing member 2 is mounted at an eccentric position above the member 6a of the arm 1, but it may also be mounted at a lower eccentric position.

Further, it is preferable that a soft cushioning material such as pile is attached to the inside of the block 8 of the pressing member 2, and the gripping side surface of the block 8 does not have to be V-shaped but may be curved.

Another embodiment is shown in FIG. 3, in which the clamp includes arm 1
1 is formed in a U-shape, and struts 4 are provided at opposite positions of one end of a pair of longitudinal members 5 a of the arm 11 .
A pair of fitting holes 5, 5 that can be fitted into the member 5 are formed.
A member 6b is vertically provided at the other end of each of the members a and 5a, and a threaded hole 7 is provided in the member 6b in parallel to the longitudinal direction of the arm 11 to be threadedly engaged with the pressing member 2.

This clamp is operated in the same manner as in the previous embodiment, and is securely fixed to the column 4 without being able to move vertically or rotate horizontally.

Since the clamp of this invention has the above-mentioned configuration, it is possible to grip the object by tightening in only one direction, and
The clamp can be fixed to the post without vertical movement or horizontal rotation,
Simple structure and operation.

[Brief explanation of the drawing]

Fig. 1.2 shows an embodiment of this invention, Fig. 1 is a cross-sectional view of the clamp before gripping an object, Fig. 2 is a cross-sectional view of the clamp after gripping the object, and Fig. 3 is a cross-sectional view of the clamp before gripping an object. It is a sectional view showing an example. 1.11... Arm, 2... Pressing member, 3... Receiving member, 4... Support column, 5...
...Fitting hole, 6a, 6b...Member, 7...Screwing hole, 8...Block.

Claims (1)

[Scope of utility model registration request] A clamp to be fixed to a support of a clamp stand, which has a fitting hole that can fit into the support at one end of the longitudinal member, and is provided at the other end of the longitudinal member and is perpendicular to the longitudinal direction. L-shaped or U-shaped with a screw hole in the direction member
a letter-shaped arm, a pressing member having a block for gripping an object attached to one end thereof and screwed into the screw hole and movable back and forth in the longitudinal direction of the arm, and a receiver disposed on the arm near the support column. is a clamp consisting of parts.