JP2536020Y2 - Stand for drilling slab material - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention relates to, for example,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stand used to stably support an electric drill when making a hole in a wall material, mainly a slab material such as a concrete material, a tile material, and a stone material.

[0002]

2. Description of the Related Art Slab materials such as the above concrete materials, tile materials and stone materials are liable to peel off during cutting. Therefore, an electric drill with a diamond bit is used for drilling. However, peeling still occurs around the through hole on the back side of the slab material. The electric drill is sometimes held by hand, but a stand is generally used to reduce the work load and to ensure the stability and safety of the work.

[0003] The above-mentioned stand comprises a base, a drill advance / retreat guide rod fixed to the base, and an electric drill holder provided on the drill advance / retreat guide rod so that the mounting position can be adjusted along the guide rod direction. the electric drill holder in its mounted position, the forward operation processing direction against the spring member, withdrawal operably configured rear and, mounting position determination fixing portion of the drill holder for a drill reciprocating guide rods and a part of the drill holder In
One of the advancing and retreating portions is provided with a drilling depth regulating rod having the other as the abutting portion.

[0004]

[Problems to be solved by the invention] When drilling holes in the slab material with an electric drill, there is no problem with blind holes,
In the case of a through hole, not only the hand-held work, but also if the penetration size is determined with the drilling depth regulating rod using the above stand, the periphery of the through hole on the back side of the slab material will not peel off and drop. Inevitable. The peeling around the hole of the slab material lowers the strength of the slab material and deteriorates appearance.

Therefore, in order to reduce the peeling of the slab material as much as possible, when the electric drill is pushed forward, the forward speed is reduced slightly shortly before the hole penetrates to reduce the pressing pressure. Pushing the power drill very slowly takes time, is inefficient, and tires the operator.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a slab material drilling stand with good operability which solves the above-mentioned problem when drilling holes in a slab material with an electric drill.

[0007]

In order to achieve the above object, the present invention provides a base 1, a drill advance / retreat guide rod 2 fixed to the base 1, a drill advance / retreat guide rod 2, and a guide rod direction. Electric drill holder 3 provided with adjustable mounting position along
With the electric drill holder 3 in its mounting position ,
Forward operation processing direction against the spring member 8, retraction operably configured rear and one of the drill reciprocating guide rod attachment position determination fixing portion 4 of the drill holder 3 for 2 and drill holder 3
In a conventional stand for drilling a slab material for drilling a slab material having a drilling depth regulating rod 6 having one of the advancing and retreating parts 5 and the other as an abutting part, the distal end of the drilling depth regulating rod 6 is moved forward. Near the end of the stroke, the fixed part for position determination
4 or abuts against the one of the forward and reverse part 5 resisted, its
Forward speed, and the pressure pushing against the workpiece low
And wherein configuration of attaching the elastic members 7 to the bottom.

[0008]

Since the elastic member 7 is attached to the tip of the drilling depth regulating rod 6 of the slab material drilling stand, when an electric drill is attached to the drill holder 3 and drilling is performed, the regulated forward stroke is restricted. Even when the elastic member 7 hits the opposing portion near the end and is pushed forward at the same speed and the same pressing pressure as it is, the repulsive force of the elastic member 7 reduces the forward speed and the pressing pressure, and minimizes peeling around the hole of the slab material. Limit.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the stand for drilling a slab material according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which an electric drill is supported by the stand, and FIG. 2 is an enlarged side view showing an electric drill holder attaching portion to a drill advance / retreat guide rod.

A drill advance / retreat guide rod 2 is fixed in a column shape substantially at the center of one side of the rectangular frame base 1. The base 1 may be a plate having a hole in the center. An electric drill holder 3 is provided on the drill advance / retreat guide rod 2 so as to be able to move up and down along the drill advance / retreat guide rod 2. In the electric drill holder 3,
For the drill advance / retreat guide rod 2 released from the holder 3
There is a fixed part 4 in the form of a clamp for determining the mounting position ,
A compression coil spring 8 is provided between the clamp-shaped fixing part 4 and a part of the electric drill holder 3 located above the fixing part 4, that is, the reciprocating part 5.

The clamp-shaped fixing portion 4 is provided with a handle 9 for loosening. When the handle 9 is operated to loosen the clamp-shaped fixing portion 4, the electric drill holder 3 can be moved up and down. When the clamp-shaped fixing part 4 is tightened, the height position of the electric drill holder 3 is fixed.

The distal end is connected to a fulcrum shaft 10
When the handle lever 11 stopped by the handle is attached to the electric drill holder 3 with the shaft 12 and the handle lever 11 is pressed down, the electric drill holder 3 is lowered against the compression coil spring 8 with the shaft 12 as a point of power. Can be The electric drill A is received by the holder 3 with the drill D side facing down, and tightened and fixed by the handle 13. A cutting tool such as a diamond bit B is attached to the tip of the drill D. 14
Is an arm rod provided on the electric drill holder 3 for holding the electric drill A.

A drilling depth regulating rod 6 having an upper surface of a clamp-shaped fixing portion 4 located below the electric drill holder 3 as an abutting portion is attached to the reciprocating portion 5 of the electric drill holder 3. An elastic member 7 for allowing a rubber lump is provided at the lower end of the piercing depth regulating rod 6, that is, at the end facing the clamp-shaped fixing portion 4.
Is fixed. Drilling depth regulating rod 6 is cap screw 15
By loosening, the distance L between the elastic member 7 and the clamp-shaped fixing portion 4, that is, the depth of the perforation can be set. When a through hole is formed, the set depth L is made substantially equal to the thickness of the slab material.

FIGS. 3A, 3B, 3C and 3D illustrate the operation of the drilling depth regulating rod in relation to the hole to be machined. Drill D
When the hole H is cut in the slab material S by the bit B,
As shown in FIG. 1B, the elastic member 7 comes into contact with the clamp-shaped fixing portion 4, but the electric drill A (see FIG. 1) is lowered as it is.

Then, as shown in FIG. 2C, the elastic member 7 is gradually compressed, and the repulsive force increases. As a result, the lowering speed of the electric drill A decreases and the pressure applied to the tip of the bit B decreases. When reaching the end of the descending stroke, the elastic member 7 is further compressed as shown in FIG. (D). Conversely, the force for pushing the electric drill must be slightly increased by the increase in the repulsive force. Since the member 7 resists, the descending speed of the electric drill further decreases, and the hole H does not penetrate abruptly, and the peeling around the hole is small.

[0016]

According to the present invention, the elastic member 7 is attached to the tip of the piercing depth regulating rod 6 of the slab material drilling stand which is generally used in the prior art. When opening the drill, even if the drill is pushed at the same speed and the same pressing pressure, the repulsive force of the elastic member 7 acts near the end of the regulated forward stroke, and the forward speed and the pressing pressure decrease, and the slab material Peeling around the through-hole on the back surface is extremely reduced, and a slab material having a good surface finish after drilling can be easily obtained, and the drilling efficiency is improved and the working cost is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a state in which an electric drill is supported on a slab material drilling stand according to the present invention.

FIG. 2 is a side view of a portion where the electric drill holder is attached to the drill advance / retreat guide rod.

3 (A) to 3 (D) are explanatory views of the operation sequence of a drilling depth regulating rod.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base 2 drill advance / retreat guide rod 3 electric drill holder 4 fixing part 5 advance / retreat part 6 drilling depth regulating rod 7 elastic member

Claims (1)

(57) [Scope of request for utility model registration] 1. A base (1), a base (1) for fixing the drill reciprocating guide rod (2), the drill reciprocating guide rod (2), mounted adjustable in position along the guide rod direction become from the drill holder (3) which is provided, advancing the drill holder (3) in its mounting position, in the working direction against the spring member (8)
Operation, retirement and operably configured rear and, drill advance and retreat guide rod
Fixing part (4) for determining the mounting position of drill holder (3 ) with respect to (2) and retreat part which is a part of drill holder (3)
To one of (5), the drill stand having a perforated depth regulating rod (6) to abutment portion and the other, the tip of the drilling depth regulating rod (6), said near the end of the forward stroke Of the fixed part for position determination (4) or the reciprocating part (5)
To hit one and resist , its forward speed , and
Elastic member that reduces the pressing pressure on the workpiece
Stand for drilling a slab material hole with (7) attached.