JPH08131257A - Wheel-type brush - Google Patents

Abstract

PURPOSE: To provide a wheel type ring brush which can easily be mounted and removed on/from a core, allows the user side to perform replacement of ring brush for the core, and which can be maintained economically. CONSTITUTION: A ring-shaped groove 23 is furnished along a circumference on a cylindrical core 21 at least at its one end, and a split ring 26 is provided which is removably engaged by the groove 23 in the radial direction to the axis of the core 21, and a stationary ring 27 is furnished which restrains the ring 26 removably at the periphery of the ring 26 and fixes a plurality of ring brushes 28 compressively in the direction of laminating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foil type brush for polishing the surface of metal, non-ferrous metal or the like.

[0002]

2. Description of the Related Art As a tool for polishing and finishing a machined surface of a metal or a welded portion, and for removing burrs and rust generated on a metal surface, excellent polishing ability and a good finished surface can be obtained. A rotating brush is often used. The rotary brush is generally a cup-type brush or a wheel-type brush, and is properly used depending on the purpose of use and the condition of the surface to be polished.

The conventional foil type brush will be described below. There are a flat type foil brush shown in FIG. 6A and a roll type foil brush shown in FIG. 7A. As shown in FIG. 6B, the flat plate type foil brush basically comprises a first disc 1 and a second disc 2 having the same shape. 2, the cylindrical portion 5 is integrally provided on the outer peripheral portion of the disk portion 4 having the through hole 3 by drawing, and the flange portion 6 is integrally provided at the end portion of the cylindrical portion 5. Further, a caulking portion 7 is integrally provided on the inner peripheral portion of the through hole 3 of the second disc 2.

Further, 8 is a ring brush, and a ring portion 9 and a brush portion 1 radially protruding from the ring portion 9.
The brush portion 10 is formed of a steel wire, a brass wire, a stainless wire, or a synthetic resin wire such as nylon into a disc shape.

When assembling the flat plate type foil brush, a plurality of ring brushes 8 are fitted to the tubular portions 5 of the first and second discs 1 and 2, and the second disc 2 is attached. After the caulking portion 7 is passed through the through hole 3 of the first disc 1 and then crimped by bending outward by a press, the first and second discs 1 and 2 are joined, and at the same time, a plurality of sheets are formed. The ring brush 8 is clamped and fixed.

Further, instead of the press system, FIG.
As shown in FIG. 1, the disc portion 4 of the first or second disc 1 or 2 is
After forming the protrusion 11 on the disk, the disk portions 4 of the first and second disks 1 and 2 are welded to join the first and second disks 1 and 2, and at the same time, a plurality of ring brushes 8 are formed. Is clamped and fixed.

Further, the roll type foil brush is shown in FIG.
As shown in (b), caulking portions 13 are provided at both ends of the cylindrical core 12, and a fixing ring 14 can be fitted into these caulking portions 13. Then, in the case of assembling the roll type wheel brush, after fitting the plurality of ring brushes 8 to the core 12, the fixing ring 14 is fitted to the caulking portion 13. Next, the caulking portion 13 is pushed outward to prevent the fixing ring 14 from coming off, and at the same time, the fixing ring 14 is pressed against the ring brush 8 to clamp and fix the plurality of ring brushes 8.

Further, instead of the crimping method, FIG.
As shown in FIG. 1, after welding one end of the long strip-shaped brush 15 to one end of the outer periphery of the core 12, the strip-shaped brush 15
Is spirally wound around the outer peripheral surface of the core 12, and the other end of the belt-shaped brush 15 is finally welded to the other end of the core 12 to fix the belt-shaped brush 15 to the core 12.

[0009]

However, as shown in FIG.
The flat-plate foil brushes shown in (b) and (c) of FIG.
Since the first and second discs 1.2 are formed by drawing, there is a limit to deep drawing, and it is impossible to increase the number of ring brushes 8 to form a long cylindrical shape. .
Further, in the roll-type wheel brush shown in FIG. 7B, both ends of the core 12 are caulked to fix the fixing ring 14. Therefore, when reworking is considered, the length of the core 12 gradually increases. It is uneconomical because it becomes short and the core 1 cannot be reused. Further, in the roll type foil brush shown in FIG. 7C, the core 12 can be reused even when the belt-shaped brush 15 is replaced. However, the belt-shaped brush 15 is wound around the core 12 and welding work at both ends and in the middle thereof can be performed. This is difficult and requires a lot of man-hours for assembling work, resulting in an increase in cost.

Further, since the above-mentioned conventional flat type wheel brush and roll type wheel brush are assembled by pressing, caulking, welding, etc., when the brush portion of the ring brush or the belt-shaped brush is worn, the user is It is basically impossible to disassemble itself and replace only the brush part. Therefore, if the brush part is worn out, you have to either discard it or return it to the manufacturer and repair it by replacing only the brush part.In the former case, it is uneconomical and in the latter case, The cost of transportation to and from the user is high, and the period required for repair is wasted.

The present invention has been made by paying attention to the above circumstances. The purpose of the present invention is that the user can easily assemble and disassemble the brush, and if the brush is worn, it can be easily replaced. Another object of the present invention is to provide a foil-type brush that allows the core to be used semipermanently, saves costs for repairs and transportation, has no waste in terms of time, and can improve work efficiency.

[0012]

In order to achieve the above-mentioned object, the present invention provides a cylindrical core, a ring portion fitted to the core, and a radial projection from the ring portion. And a ring-shaped groove formed along at least one end of the core along the circumference, and a ring-shaped groove formed of a plurality of ring brushes laminated in the axial direction of the core. A split ring removably engaged in the groove with respect to the axis of the core in a radial direction, and a split ring detachably fitted to the outer periphery of the split ring to constrain the split ring and to stack the ring brushes in the stacking direction. And a fixing ring for compression fixing.

According to a second aspect of the present invention, there are provided a plurality of ring brushes each comprising a cylindrical core, a ring portion fitted to the core, and a brush portion radially protruding from the ring portion, the ring brushes being laminated in an axial direction of the core. In a wheel type brush consisting of: an engaging projection that is provided on an inner peripheral surface of a ring portion that constitutes the ring brush and projects inward; and an engaging projection that is provided on an outer peripheral surface of the core in the axial direction. An engagement groove that engages to prevent rotation of the ring brush with respect to the core, an annular groove provided along at least one end of the core along the circumference, and an annular groove in the annular groove with respect to the axis of the core. A split ring removably engaged in the radial direction, and a fixing ring detachably fitted to the outer periphery of the split ring to restrain the split ring and compress and fix the plurality of ring brushes in the stacking direction are provided. And wherein the door.

[0014]

By moving the fixing ring in the axial direction of the core, the split ring can be split in the radial direction with respect to the axial center of the core and can be removed from the core. Therefore, the ring brush can be replaced by removing the ring brush from the core and fitting a new ring brush into the core. Further, the ring portion of the ring brush is provided with an engagement protrusion, and the engagement protrusion and the engagement groove of the core are engaged with each other, whereby the rotation of the ring brush with respect to the core can be prevented. It can prevent idling.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a foil brush,
2 is a perspective view of the assembled state, and FIG. 3 is a vertical sectional side view and both end views of the assembled state. In the figure, reference numeral 21 denotes a cylindrical metal core, and annular grooves 22 and 23 are provided on both ends of the core 21 along the circumference thereof. Also, core 2
On the outer peripheral surface of 1, there are two engagement grooves 24 provided in the axial direction.

A snap ring 25 is detachably engaged with the one annular groove 22, and a pair of split rings 26 shown in FIG. 4 is detachably engaged with the other annular groove 23. The split ring 26 has a semi-annular shape, and has a substantially L-shaped cross section, and has an engaging portion 26a that engages with the annular groove 23 and a protruding portion 26b that protrudes from the outer peripheral surface of the core 21. ing.

A fixing ring 27 shown in FIG. 5 is detachably fitted to the outer periphery of the split ring 26. The fixing ring 27 also has a substantially L-shaped cross section and is fitted to the core 21 and is fitted to the abutment portion 27a that abuts the end surface of the protruding portion 26b of the split ring 26 and the outer peripheral surface of the split ring 26. It has a fitting portion 27b.

Accordingly, the engaging portion 26a of the split ring 26 is engaged with the annular groove 23 of the core 21, and the split ring 2
By fitting the fixing ring 27 to the outer circumference of the pair 6, the pair of split rings 26 are constrained to be immovable in the radial direction and fixed to the core 21.

A plurality of ring brushes 28 are detachably fitted to the outer peripheral portion of the core 21. The ring brush 28 is composed of a ring portion 29 fitted to the core 21 and a brush portion 30 radially protruding from the ring portion 29. The brush portion 30 is made of steel wire, brass wire, stainless wire, nylon or the like. It is formed in a disk shape by a synthetic resin wire.

Further, two engaging protrusions 31 are provided on the inner peripheral surface of the ring portion 29 of the ring brush 28 so as to correspond to the engaging grooves 24 of the core 21. The ring portion 29 of the ring brush 28 is located on the end surface of the core 21,
With the engagement protrusion 31 positioned in the engagement groove 24,
By pressing the ring brush 28 in the axial direction of the core 21, the ring brush 28 is fitted to the core 21,
Moreover, the ring brush 28 is non-rotatably restrained with respect to the core 21 by the engagement between the engagement protrusion 31 and the engagement groove 24.

Reference numeral 32 in the drawing denotes an end plate having a spacer function, which is formed of an elastic plate such as rubber. Next, a procedure for assembling the foil brush constructed as described above will be described. First, the snap ring 25 is engaged with the one annular groove 22 of the core 21. This snap ring 25
The engagement can be easily performed by expanding the opening of the snap ring 25 with a tool, and after the engagement, the engagement is held in the annular groove 22 by the restoring force of the spring.

Next, after fitting one end plate 32 from the opposite side of the core 21 (the side where the snap ring 25 is not attached), a plurality of ring brushes 28 are fitted into the core 21 and the ring brushes are fitted. 28 is laminated. At this time, as described above, by engaging the engagement projection 31 and the engagement groove 24, the ring brush 28 is non-rotatably restrained with respect to the core 21.

After fitting the last ring brush 28 to the core 21, the other end plate 32 is fitted to the core 21, and then the fixing ring 27 is fitted to the core 21. Next, the split ring 26 is moved from the outside of the outer peripheral portion of the core 21 toward the axial direction of the core 21, and the engaging portion 26 a thereof is engaged with the annular groove 23. In this state, when the fixing ring 27 is slightly moved toward the end portion of the core 21, the abutting portion 27a abuts on the end surface of the protruding portion 26b of the split ring 26, and the fitting portion 27b causes the outer peripheral portion of the protruding portion 26b. To fit. Therefore, the pair of split rings 26 are constrained to be immovable in the radial direction, and the core 2
Fixed to 1.

At this time, the fixed ring 27 is the split ring 2
6 is located inside, and the split ring 26 is located in the annular groove 2.
3 is engaged with the fixing ring 27 and the annular groove 23.
Although it is necessary to press it further inward, the ring portions 29 of the plurality of ring brushes 28 fitted to the core 21 have some elasticity in the thickness direction thereof, and the two end plates 32 are provided.
Since they are elastic bodies, they are compressed and fixed ring 27
Can be displaced from the annular groove 23, and the fixing ring 2
In the state where 7 is fitted in the split ring 26, the fixing ring 27 can be pressed against the split ring 26 by the elastic restoring force of the ring portions 29 of the plurality of ring brushes 28 and the end plate 32, and the fixed state is maintained. be able to.

On the contrary, the fixed ring 27 can be removed from the split ring 26 by pushing it against the elastic restoring force of the ring portions 29 of the plurality of ring brushes 28 and the end plate 32. It can be removed to the outside of the core 21 in the radial direction. Therefore, the ring brush 28 can be pulled out from the end of the core 21.

When fixing the ring brush 28 to the core 21 as described above, it is not necessary to press, crimp, weld, etc. as in the conventional case, and the fixing ring 27 is fitted to the split ring 26. The ring brush 28 can be replaced with respect to the core 21 on the user side. That is, a large number of ring brushes 28 are prepared on the user side as replacement parts, and when the ring brush 28 in use is worn, the worn old ring brush 28 can be removed and replaced with a new ring brush 28. Therefore, there is no need to request the manufacturer to repair the worn wheel type brush, the transportation cost is saved and the repair period is not wasted, and the core 21 can be used semipermanently, which is economical.

In the above embodiment, the core 21
Although the snap ring 25 is engaged with one of the annular grooves 22 and 23 provided at both ends of the above, the split ring 26 is engaged with the other, and the fixed ring 27 is fitted to the split ring 26, The split ring 26 may be engaged with the annular grooves 22 and 23 at both ends of the core 21, and the fixed ring 27 may be fitted to the split ring 26. With this configuration, the snap ring 25 becomes unnecessary, and the ring brush 28 can be attached and detached from both ends of the core 21.

[0028]

As described above, according to the invention of claim 1, the ring brush can be easily attached to and detached from the core, and there is no need to perform pressing, caulking, welding, etc. The ring brush can be fixed to the core simply by fitting the fixed ring to the ring, and the ring brush can be replaced with respect to the core on the user side. Therefore, many ring brushes are prepared as replacement parts on the user side, and when the ring brush in use is worn out, the worn old ring brush can be removed and replaced with a new ring brush. It is economical because there is no need to do so, transportation cost is saved and repair period is not wasted, and the core can be used semi-permanently.

According to the second aspect of the present invention, in addition to the above-mentioned effect, the ring brush can be securely and easily prevented from rotating with respect to the core without forming the fitting portion between the core and the ring portion of the ring brush into a polygonal shape. Therefore, there is an effect that the polishing work can be efficiently performed without causing the ring brush to idle due to the resistance applied during the polishing work.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a foil brush showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a fixing ring is fitted to the split ring of the embodiment.

FIG. 3 is a vertical cross-sectional side view and both end views of the same embodiment in an assembled state.

FIG. 4 is a front view and a side view of the split ring of the embodiment.

FIG. 5 is a front view and a cross-sectional view of a fixing ring of the same embodiment.

FIG. 6 shows a conventional flat plate type foil brush, (a) is a perspective view, and (b) and (c) are cross-sectional views showing different assembled states.

FIG. 7 is a perspective view of a conventional roll-type wheel brush, and FIGS. 7B and 7C are sectional views showing different assembled states.

[Explanation of symbols]

21 ... Core, 22, 23 ... Annular groove, 24 ... Engaging groove, 25
... snap ring, 26 ... split ring, 27 ... fixing ring, 28 ... ring brush, 29 ... ring portion, 30 ... brush portion, 31 ... engaging projection.

Claims (2)

[Claims] 1. A plurality of ring brushes each comprising a cylindrical core, a ring portion fitted to the core, and a brush portion radially protruding from the ring portion, the ring brushes being laminated in an axial direction of the core. In the foil type brush, the annular groove is provided along at least one end of the core along the circumference, and the split ring is detachably engaged with the annular groove in the radial direction with respect to the axial center of the core. And a fixing ring that is detachably fitted to the outer periphery of the split ring to constrain the split ring and compress and fix the plurality of ring brushes in the stacking direction. 2. A cylindrical core, a ring portion fitted to the core, and a brush portion radially protruding from the ring portion, and a plurality of ring brushes laminated in the axial direction of the core. In a wheel type brush, an engaging protrusion that is provided on an inner peripheral surface of a ring portion that constitutes the ring brush and protrudes inward, and an engaging protrusion that is provided on an outer peripheral surface of the core in the axial direction and engages with the engaging protrusion. Engaging groove for preventing rotation of the ring brush with respect to the core, an annular groove provided along at least one end of the core along the circumference, and the annular groove in the radial direction with respect to the axial center of the core. A split ring that is detachably engaged, and a fixing ring that is detachably fitted to the outer periphery of the split ring to restrain the split ring and compress and fix the plurality of ring brushes in the stacking direction. Foil type brushes.