JPH0276611A - Boring tool depth gauge fixing structure - Google Patents

Abstract

PURPOSE:To facilitate the adjustment and operation of a boring depth by pressing a wedge body between a depth gauge which is held so as to freely move in a tool boring direction and a body. CONSTITUTION:A depth gauge 3 is fixed to a boring tool body via an auxiliary handle 2, and a gauge lever 29 which is turned around the gauge 3 as a support shaft is supported with the gauge 3 in the boring direction of the boring tool and between two lugs 27. The lever 29 is supported with the gauge 3 in a cutout cylindrical area 31 a part of which is provided with a cutout 30. When the lever 29 is operated, a wedge body 32 formed in the cylindrical area 31 enters a clearance between the depth gauge 3 and an auxiliary handle casing area 33 as the body 1, so that the wedge body 32 presses the gauge 3 to deflect it. Consequently, the gauge 3 can be fixed in a predetermined discretionary position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a fixing structure for a depth gauge that determines the depth of a drilling tool, and more specifically, a method for fixing and releasing the depth gauge while strongly fixing the depth gauge. It relates to technology that facilitates the

[Conventional technology] Conventionally, as a drilling tool equipped with depth gauge 3,
There is one shown in Publication No. 1-61111. As shown in FIGS. 8 and 9, this is the tool body 1a of the drilling tool.
A rod-shaped depth gauge 3 is attached to an auxiliary handle 2 attached to the tip of the tool body 1a.
2 and a grip part 63, and is attached to the tool body 1a by tightening the band 61 with a bolt 64 inserted through both overlapping ends of the band 61, the base 62, and the grip part 63. The depth gauge 3 is inserted into the space between the holding piece 65 integrally projected from the base 62 and the side surface of the base 62, so that it can freely move in the axial direction, and the holding piece 65 Tighten the inserted bolt 66 and remove the holding piece 65 and base 62.
Fixation is achieved by narrowing the space between the sides.

[Problem to be solved by the invention 1 In this case, when changing the drilling depth, first the bolt 6
6 by rotating it several times to allow the depth gauge 3 to move freely in the axial direction. In this state, after adjusting the axial position of the depth gauge 3 to a predetermined position, rotate the bolt 66 several times. This requires a complicated operation of re-tightening. Also,
If the bolt 66 is loosened too much, the depth gauge 3 may fall off or the bolt 66 may fall off. Falling is extremely dangerous.

The present invention was made in view of such problems,
The purpose of this is to make it easy to adjust the drilling depth by moving the depth gauge, and to prevent the drilling depth from changing due to unexpected movement of the depth gauge. An object of the present invention is to provide a fixing structure for a depth gauge of a drilling tool, which can be strongly fixed.

[Means for Solving the Problems 1] The depth gauge fixing structure of the drilling tool of the present invention includes a wedge 32 between the depth gauge 3 and the main body 1, which are held movably in the drilling direction of the tool. This is characterized in that the depth gauge 3 is fixed by press-fitting.

[Operation 1] In this way, by press-fitting the wedge body 32 between the depth gauge 3 held movably in the drilling direction of the tool and the main body 1 and fixing the depth gauge 3, (the wedge body 32 The depth gauge 3 is firmly fixed by press-fitting, so that the depth gauge 3 does not move during use and the drilling depth does not change, and by removing the wedge body 32, the depth gauge 3 can be fixed firmly. This allows for easy adjustment movement to change the depth.

[Example] Embodiments of the present invention will be described in detail below based on the drawings.

This drilling tool has a chuck 10 at the tip and a lower part 1 at the rear end.
In addition to the handle 11, the tool body 1a is provided with a storage battery storage chamber 12 at the front of the handle 11, and the auxiliary handle 2 is detachably attached to the tip of the tool body 1a. The main body 1 includes a switch handle 13 disposed on the front surface of the handle 11, and a battery cover 14 on the front surface of the storage battery storage section 12.

The depth gauge 3 is connected to the tool body 1 via the auxiliary handle 2.
attached to a. Auxiliary handle 2 here
consists of an annular ring part 20, a pressing piece 21 provided at the lower part of the ring part 20, a base part 22 below the pressing piece 21, and a grip part 24 whose upper end is connected to the base part 22 via a collar part 23. It is formed as an integrally molded synthetic resin product.

The suppressing piece 21 is connected to other parts via a thin elastic piece 25, and is fixed to the tool body 1a by projecting into the space surrounded by the ring part 20 by the handle lever 26. . The depth dage 3 is inserted into the through hole 28 of two lugs 27, which are holding parts integrally formed on the outer surface of the ring part 20 of the auxiliary handle 2, and the depth dage 3 is inserted into the through hole 28 of two lugs 27 that are integrally formed on the outer surface of the ring part 20 of the auxiliary handle 2. It is supported movably in the longitudinal direction of the depth dage 3.

Further, when the two lugs 27 are opened, the depth dage 3 pivotally supports a dage lever 29 that rotates using the depth dage 3 as a support shaft. This dage lever 29 has a partial notch 30
The depth dage 3 is pivotally supported by the notched cylindrical part 31 formed with the depth dage 3. By operating the Dale bar 29, the wedge body 32 formed in the notched cylindrical part 31 is connected to the depth dage 3 and the main body 1. The wedge body 32 presses and bends the depth dage 3 by entering the gap between the depth dage 3 and the auxiliary handle casing part 33, thereby fixing the depth dage 3 at an arbitrary set position.

5 to 7 show another embodiment in which a dage lever 29 is rotatably supported by a shaft 34 on a puffer 27, 27 which projects from the auxiliary handle casing 33. A wedge body 32 is formed in a part of the dage lever 29, and the dage lever 29 is formed similarly to the embodiment shown in FIGS.
is rotated to cause the wedge body 32 to enter the gap between the depth dage 3 and the casing part 33, and the depth dage 3 is fixed.

[Effect of the Invention 1] In short, the present invention fixes the depth gauge by press-fitting the wedge body between the depth gauge, which is held movably in the drilling direction of the tool, and the main body. The depth gauge is firmly fixed in place, preventing the depth gauge from moving and changing the drilling depth during use, and by removing the wedge body, it is easy to change the depth of the depth gauge. 714
It has the advantage that alignment movement can be easily performed.

[Brief explanation of the drawing]

FIG. 1 is a front view of one embodiment of the present invention, FIG. 2 is a side view of the same, FIGS. 3 and 4 are sectional views showing the action of the above, and FIG. A side view, FIGS. 6 and 7 are cross-sectional views showing the same operation as above, FIG. 8 is an exploded perspective view of the conventional example, and FIG. 9 is a cross-sectional view of the same as above, where 1 is the main body and 3 is a depth gauge. , 32 is a wedge body. Agent Patent attorney Ishi 1) Ai 732...wedge body 13 figure 74 figure 11!5 leap y6!2t figure 18

Claims (1)

[Claims] (1) Fixing the depth gauge of a drilling tool characterized by fixing the depth gauge by press-fitting a wedge between the depth gauge held movably in the drilling direction of the tool and the main body. structure.