JPH0123733Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention [Field of industrial application] The present invention relates to a paper clamp device for a sander.

Conventionally, this type of clamp device is shown in Fig. 7.
A device as shown in FIG. 8 is known.

This is done by fixing one end of the clamper b on the sanding plate a with a screw c or the like, and applying a downward elastic force to the free end b' of the clamper b. The paper d is clamped on the sanding plate a by the clamper b, and a lever e is pivotally connected to the clamper b so as to be able to lift the paper against repulsive force. In the above figure, f is a notch formed in the housing g for lifting the lever,
h indicates each part.

However, according to the above configuration, when replacing the paper d, it is necessary to keep holding the lever e and holding the clamper b up as shown by the two-dot broken line in FIG. The problem is that the work must be done with one hand, making it extremely difficult to perform.

[Problem that the invention attempts to solve]

Therefore, as a result of studies in view of the above-mentioned conventional problems, the present invention has been developed by providing a lever latching part on the housing, and by configuring the lever to be lifted up and latched to the latching part, it is possible to perform tasks such as paper exchange. The purpose is to eliminate the need to keep lifting the middle lever, and to allow the above-mentioned work to be performed efficiently and quickly with both hands.

B. Structure of the invention [Means for solving the problem] That is, the present invention fixes one end of the paper on the sanding plate so that the paper can be clamped onto the sanding plate, thereby fixing the free end of the paper to the sanding plate. A lever is pivotally attached to a clamper that is attached by applying a downward repulsive force, so that it can rotate freely in the horizontal direction, and can be freely engaged and removed in an unclamped state when lifted against the repulsive force of the clamper. The above-mentioned problem was solved by providing the housing with a lever latching part so that the housing could be latched and fixed.

〔Example〕

An embodiment of the present invention will be described below in detail based on the drawings. As shown in FIGS. 1 to 6, a sanding plate 1 is fixed to a friction member of a sander (not shown), and is mounted on an eccentric shaft. Since it is similar to a conventional sander in that it is provided so as to be rubbed on a flat surface by rotation, a detailed explanation will be omitted.

A clamper 2 is attached to the upper surface of the end of the sanding plate 1 by fixing one end of the clamper 2 with screws 3, thereby applying a downward elastic force to the free end 2a. .

The clamper 2 has an elastic metal plate, is shaped into a T-shape in plan view, and is curved into a roughly half-crank shape on the side to give itself elasticity, and the free end of the clamper 2 has elasticity. A clamping plate portion 2b is integrally formed with a downward curve on the clamping plate portion 2a.
At step b, place paper 4 on the above sanding plate 1.
It is provided to be clamped on top.

The base end of a lever 5 is pivotally attached to the upper surface of the free end 2a of the clamper 2 with a screw 6, etc., so that it can rotate horizontally, and the paper 4 is clamped as shown in Fig. 2. In this state, it is rotated so that it is superimposed on the clamper 2 as shown by the solid line in FIGS. 1 and 3, so that it is housed in the housing 7 so as not to protrude outside the sanding plate. When replacing the paper 4, etc., it is rotated approximately 90 degrees counterclockwise from the above position, as shown by the two dotted lines in Figure 3 and in Figure 6. By holding this and pulling it up, the clamper 2 can be lifted against its repulsive force.

Here, there is a protrusion 5a on the back surface of the lever 5 at a proper place.
On the other hand, the clamper 2 is provided with an engagement hole 2c that fits with the protrusion 5a, and engages with the protrusion 5a when the lever 5 is stored in the housing 7 as described above. By engaging the hole 2c,
It is convenient if the lever 5 can be fixed at that position, since it can prevent the lever 5 from protruding outward due to vibrations during work.

Further, the lever 5 has a gripping portion 5b bent at its tip so that it is easy to hold.

In the present invention, when the lever 5 is lifted and the clamper 2 is lifted up in the unclamped state shown in FIG. It is configured by forming a notch in the skirt portion 7a.

Here, the lever latching portion 8 is attached to the housing 7.
An opening 8a that is opened at the lower edge of the skirt portion 7a and has a width that allows the lever 5 to be inserted therein, and a horizontal hooking hole 8b that is connected to the upper part of the opening 8a. The latching hole 8b is formed horizontally on either the left or right side of the opening 8a, and the overall shape is formed into a substantially horizontal L-shape from the front, or The hooking holes 8b, 8b are arranged oppositely on both sides, and the overall shape is formed into a substantially T-shape from the front as shown in the illustrated example.

Thus, after lifting the lever 5 and inserting it from the opening 8a, the lever 5 is rotated slightly to fit into the locking hole 8b, so that the lever 5 is moved by the elastic force of the clamper 2. It can be latched and fixed against resistance.

A pad 9 is attached to the bottom surface of the sanding plate 1, and the paper 4 is stuck to the bottom surface of the pad 9 by clamping its end with the clamper 2.

[Effect of idea]

As explained above, since the sander clamping device according to the present invention is configured, the lever 5
The clamper 2 can be fixed in the lifted state by lifting the clamper 2 against the elastic force and engaging the lever 5 with the lever latching portion 8 of the housing 7. , it is no longer necessary to keep lifting the lever 5 during operations such as paper exchange, and therefore operations such as paper exchange can be easily and quickly performed with both hands. The effect that can be easily applied to a state of tension is enormous.

[Brief explanation of drawings]

1 and 2 are a front view and a vertical side view of the paper clamp state showing an embodiment of the sander paper clamp device according to the present invention, FIG. 3 is a plan view of the clamper in the same embodiment, and FIG. The figures are an enlarged sectional view taken along the - line in FIG. 3, and FIG.
Fig. 6 is a front view and longitudinal side view of the same embodiment, showing the clamper in a lifted and fixed state, and Figs. 7 and 8 are a front view and longitudinal side view of the paper clamp device of a conventional sander, respectively. It is a diagram. 1... Sanding plate, 2... Clamper,
2a...Free end, 4...Paper, 5...Lever, 7
...Housing, 8...Lever latching part.

Claims (1)

[Scope of utility model registration request] In order to be able to clamp the paper 4 on the sanding plate 1, by fixing one end on the sanding plate, a downward elastic force is applied to the free end 2a, and the paper 4 is horizontally attached to the attached clamper 2. A lever latching portion is provided on the housing 7 so that the lever 5, which is pivotally attached so as to be rotatable in the direction, can be releasably latched and fixed in the unclamped state raised against the elastic force of the clamper. A sander paper clamp device characterized by being provided with 8.