JPH1132836A - Brush device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brush device for easily conducting a changing operation without using a tool. SOLUTION: A brush device has a brush supporting body 13 planting a plurality of brushes 11 in a radial manner, a holder 7 supporting rotatably the brush supporting body 18, a fixing member 15 for fixing the brush supporting body 13 to the holder 7 in a supporting condition, a retention shaft 3 elongated to an axis direction, and a clamp 5 for clamping or unclamping by one touch in a condition that a tip 3A of the retention shaft 3 is attached into a hole for attaching formed on the holder 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush device particularly used for cleaning a cutting tool such as a saw blade and removing rust.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a brush device 101 used for cleaning a cutting tool such as a saw blade, removing rust, etc., has a distal end of a support shaft 103 extending in an axial direction. A screw 105 is formed on the outer periphery of the portion (the left end in FIG. 3). Support shaft 103
A brush holder 109 in which a number of wire brushes 107 are implanted radially is mounted, and a butterfly nut 111 is screwed into the screw 105 and tightened to fix the brush holder 109 to the support shaft 103.

[0003]

By the way, when replacing the wire brush 107 with the above-mentioned conventional brush device 101, loosen the butterfly nut 111 and remove it from the screw 105 and remove it from the support shaft 103 and the brush holder 109. It is done in. Therefore, since the operator removes and attaches the butterfly nut 111 and the brush holder 109 using a tool, the replacement operation is very troublesome.
Further, if the brush device 101 is mounted at a position where it is difficult to replace the brush device 101, the replacement operation is more troublesome.

[0004] It is an object of the present invention to provide a brush device which can facilitate replacement work without requiring tools.

[0005]

According to the first aspect of the present invention, there is provided a brush device in which a plurality of brushes are radially planted, and the brush holder is rotatably supported. Holder, a fixing member for fixing the brush holder to the holder in a supported state, a support shaft extended in the axial direction, and a tip end of the support shaft mounted in a mounting hole formed in the holder. And a clamper for clamping and unclamping with one touch in the state.

[0006] Therefore, a brush holder in which a large number of brushes are implanted radially is mounted on the holder and fixed by the fixing member. When the holder is mounted on the support shaft, when the operator engages a mounting hole formed in the holder with the tip of the support shaft, the clamper works and is clamped with one touch. Further, when removing the holder from the support shaft, the operator pulls the holder with respect to the support shaft, so that the clamper works to be unclamped with one touch.

[0007] Since the mounting hole formed in the holder is engaged with the tip of the support shaft or is simply pulled and clamped and unclamped with one touch, the replacement operation can be performed easily. When replacing a new brush, it is only necessary to loosen the fixing member.

According to a second aspect of the present invention, there is provided a brush device comprising:
2. The brush device according to claim 1, wherein the brush is a wire.

Accordingly, by using a brush as a wire, cleaning and rusting of a cutting tool such as a saw blade are performed very well, and the life of the brush is improved.

According to a third aspect of the present invention, in the brush device of the first aspect, the clamper has an engagement groove formed around a corner-shaped tip of the support shaft and a diameter of the mounting hole. And a ball plunger provided in an appropriate number of holes formed in the direction and detachable from the engagement groove.

Therefore, when the holder is to be mounted on the support shaft, when the operator engages the angular tip of the support shaft with the mounting hole formed in the holder, the diameter of the mounting hole is reduced. The ball of the ball plunger provided in an appropriate number of holes formed in the direction is engaged with an engagement groove formed around the tip portion with one touch and clamped. Also, when removing the holder from the support shaft, the operator pulls the holder against the support shaft, and the ball of the ball plunger is disengaged from the engagement groove and is unclamped with a single touch. It ’s easy.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Referring to FIG. 1, a brush device 1 used for cleaning a cutting tool such as a saw blade or removing rust is provided with a support shaft 3 extending in the axial direction.
2, the distal end of the support shaft 3 is a square portion 3A, and an engagement groove 5 which forms a part of a clamper is formed on the outer periphery of the square portion 3A. I have.

A holder 7 having a mounting hole 7H to be mounted on the angular portion 3A which is the tip of the support shaft 3 is provided. A screw 9 is integrated with the holder 7, and a brush holder 13 having a brush 11 made of a large number of wires implanted radially is mounted on a base 9 </ b> A of the screw 9. A nut 15 is screwed into the screw 9 to fix the brush holder 13.

In the holder 7 in the radial direction of the mounting hole 7H, a suitable number (2 in the present embodiment)
Holes 17 are formed. The hole 17 is provided with a ball plunger 23 which is a part of a clamp in which the ball 21 is urged inward by the urging force of a spring 19.

With the above configuration, the screw 9 in the holder 7 is
A brush holder 13 in which brushes 11 made of a large number of wires are planted is mounted on the base 9A of the above, and a nut 15 is screwed into the screw 9 and fixed. 13 is fixed. Therefore, when replacing a new brush 11, the brush 11 can be replaced only by loosening the nut 15.

When the holder 7 is to be mounted on the support shaft 3, an operator engages (inserts) a mounting hole 7H formed in the holder 7 with the angular portion 3A which is the tip of the support shaft 3. After the ball 21 of the ball plunger 23, which is a clamper, moves radially outward against the urging force of the spring 21, it is fitted into the engagement groove 5 and is clamped in one touch by the urging force of the spring 21. Will be.

When removing the holder 7 from the support shaft 3, the worker pulls the holder 7 against the support shaft 3 so that the ball 21 of the ball plunger 23
Moves outward in the radial direction against the urging force of the spring 19 and is unclamped with one touch.

As described above, since the holder 7 is merely inserted or pulled into the angular portion 3A, which is the distal end portion of the support shaft 3, it can be disengaged (clamped or unclamped) with one touch. . Moreover,
Since the tip of the support shaft 3 is formed as a square portion 3A and the holder 7 is also formed as a square, the rotation direction does not matter at all. Further, since almost no load is generated in the axial direction, there is no problem with the degree of the ball plunger 23 coming off.

Therefore, the brush 11 is set in the holder 7 while the machine is running, and when replacing the brush, it is only necessary to pull out and insert the entire holder 7 and replace it easily without using tools as in the conventional case. It can be performed.

By manufacturing the brush 11 with a wire, it is possible to clean the cutting tool such as a saw blade, remove rust, etc. very well, and to improve the life of the brush 11.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.

[0023]

As can be understood from the above embodiments of the present invention, according to the first aspect of the present invention, the holder is provided with a brush holder having a large number of brushes implanted radially in the holder, and the holder is attached to the holder. Let me fix it. When the holder is mounted on the support shaft, when the operator engages a mounting hole formed in the holder with the tip of the support shaft, the clamper works and is clamped with one touch. Further, when removing the holder from the support shaft, the operator pulls the holder with respect to the support shaft, so that the clamper works to be unclamped with one touch.

Since the mounting hole formed in the holder can be clamped and unclamped with a single touch only by engaging or pulling the mounting hole at the tip of the support shaft, the replacement operation can be performed easily. When replacing a new brush, it is only necessary to loosen the fixing member.

According to the second aspect of the present invention, by using a brush as a wire, the cutting tool such as a saw blade can be cleaned and rusted off very well, and the life of the brush can be improved.

According to the third aspect of the present invention, when the holder is mounted on the support shaft, the worker engages with the mounting hole formed in the holder at the angular tip of the support shaft. Then, the balls of the ball plunger provided in an appropriate number of holes formed in the radial direction of the mounting hole are engaged with the engaging grooves formed around the distal end with one touch and are clamped. Also, when removing the holder from the support shaft, the worker pulls the holder against the support shaft, so that the ball of the ball plunger comes off the engagement groove and is unclamped with one touch.
The replacement work can be performed very easily.

[Brief description of the drawings]

FIG. 1 is a front view of a brush device according to the present invention.

FIG. 2 is an enlarged perspective view of a support shaft in FIG.

FIG. 3 is a front view of a conventional brush device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brush device 2 Support shaft 3 Square part (tip part) 5 Engagement groove (clamper) 7 Holder 7H mounting hole 9 Screw 11 Brush 13 Brush holder 15 Nut 19 Spring 21 Ball 23 Ball plunger (Clamper)

Claims (3)

[Claims] 1. A brush holder in which a plurality of brushes are implanted radially, a holder rotatably supporting the brush holder, and a fixing member for fixing the brush holder in a state where the brush holder is supported by the holder. A support shaft extending in the axial direction, and a clamper for clamping and unclamping with one touch in a state where the tip of the support shaft is mounted in a mounting hole formed in the holder. Brush device. 2. The brush device according to claim 1, wherein the brush is a wire. 3. The engagement mechanism according to claim 1, wherein the clamper is provided in an engagement groove formed around a corner-shaped tip of the support shaft and an appropriate number of holes formed in a radial direction of the mounting hole. 2. The brush device according to claim 1, further comprising a ball plunger capable of engaging with and disengaging from the groove.