JPS5938888Y2 - brush - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in brushes.

Generally used brushes consist of a brush member made of a collection of thin wires of metal, plastic, or other elastic members, fixed at one end, and the length of the brush member is shaped so that the brush member has appropriate flexibility. This is what I did.

The disadvantage of this brush is that when the brush member wears out through use and its length becomes short, it becomes in a state of lack of flexibility, commonly referred to as "bozu", and is no longer useful as a brush, meaning that its lifespan is short. There is.

The present invention was developed based on the above-mentioned circumstances, and includes a reinforcing member formed in a structure that can be separated by a certain width in the axial direction of the brush member, and provided on the outer periphery of the brush member adjacent to the fixed part. This provides a long-life brush that can be used under optimal conditions.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings based on embodiments relating to rotating brushes.

As shown in FIG. 1, the rotating brush has a brush member 2 in which a plurality of thin wire elastic members 1 are tightly bundled into a cylindrical shape.

As the elastic member 1, metal, plastic, hair, or other materials may be arbitrarily used depending on the purpose.

The brush member 2 is formed to have a length substantially longer than that required for brushing.

One end portion of this brush member 2 is inserted into the tube of the cylindrical head portion of the holder 3 and tightly bound.

A columnar shaft is coaxially protruded from the bottom of the cylindrical head portion of the holder 3, and by connecting the shaft to a rotation drive source (not shown), the brush member 2 can be rotated around its axis. .

In addition, a plurality of annular spring band shafts 4a are provided on the outer periphery of the brush member 2 adjacent to the holder 3, leaving the actually used length of the brush member 2 at the other end.
. . . are installed closely together in the axial direction.

These spring band shafts 4a... are cracked at one place, and before installation, the diameter is smaller than the outer diameter of the brush member 2, and when fitted to the brush member 2, there is a slight gap at the cracked part. is biased inward to tighten the portion of the brush member 2 adjacent to the holder.

In order to ensure this tightening, these spring band shafts 4a have a spring force large enough to tighten the elastic member 1 so as not to expand at the maximum number of revolutions used.

To perform brushing using such a rotating brush, the shaft portion of the holder 3 of the rotating brush is attached to a rotating shaft (not shown) of a drilling machine, an electric drill, or the like, and the brush member 2 is rotated about its axis.

Then, due to the action of centrifugal force accompanying this rotation, the free end (other end) of the elastic member 1 spreads in the radial direction.

At this time, since the portion of the brush member 2'' adjacent to the holder is tightened by the elastic force of the spring band shaft and is prevented from spreading, the free end portion is adjusted to a desired size according to the exposed length of the brush member 2. spread.

Brushing is continued intermittently in this state, and when the brush member 2 is worn out by approximately the width of the spring band shaft 4a and becomes unsuitable for use, one spring band shaft 4a on the free end of the brush member 2 is used to remove the spring band shaft 4a from the free end. Remove.

By repeating such operations, the spring band shaft 4a
...You can use it until your stomach runs out.

In this way, since the exposed length of the brush member 2 can be kept constant, the flexibility can be maintained at an appropriate level and normal brushing can be performed. You can make your life extremely long.

Next, other embodiments are shown in FIGS. 2a and 2b and 3a and 3b.

In Fig. 2a, through holes 5 are formed at both ends of the spring band shafts 4b, and the through holes 5 are engaged with a tool for removal. are adjacent to the holder 3 and in close contact with each other on the outer periphery of the brush member 2.
The wires are tied together multiple times with a linear body 4c such as a string or wire, and other points are substantially the same as the embodiment shown in FIG. 1. This is effective, and the spring band shafts 4b, . . ., linear bodies 4C, . . ., can be easily removed.

Further, in FIG. 3a, a thin cylindrical body 4d is fitted on the outer circumferential portion of the brush member 2 adjacent to the holder 3, and the portion of the brush member 2 adjacent to the holder is tightened. The cylindrical body 4d is shown having a screw-shaped notch 6 formed on its outer periphery and a notch 7 formed in a direction intersecting the notch 6 on its inner peripheral surface.

Further, in FIG. 3, a close-fitting helical spring 4e, which is biased inwardly, is fitted onto the outer peripheral portion of the brush member 2 adjacent to the holder 3.

A notch 7 is formed in the inner peripheral surface of the helical spring 4e in a direction intersecting the helical direction.

The rotating brushes in these embodiments are shown in Figures 2a and b.
The same effect as in the embodiment is achieved.

Note that the cuts 6 and 7 in these embodiments do not necessarily have to be formed.

For example, in the case of a thin-walled cylindrical body 4d fitted, the brush is rotated, a cut is made around the circumference with a file or a cutter, and then a cut is made in the axial direction to obtain the desired amount. Thin cylindrical body 4
d can be removed from the brush.

Although an embodiment of a rotating brush has been described above, the above-described structure can also be applied to a general brush that does not rotate.

In this case, the free end of the elastic member 1 is bent with respect to the brushing direction.

At this time, since the part of the brush member 2 adjacent to the holder is reinforced by the reinforcing member 4 such as a spring band shaft, a linear body, a cylindrical body, a helical spring, etc., and becomes difficult to bend, the free end of the elastic member 1 is The brush member 2 is bent to an extent corresponding to the exposed length.

Work in this state and use the reinforcing member 4 in the same way as the rotating brush.
Use until it runs out.

In this case as well, the exposed length of the brush member 2 can be kept constant, so the flexibility can be maintained at an appropriate level and normal brush work can be performed. Since it can cope with a large amount of wear and tear on the brush compared to other brushes, its lifespan can be extended.

As described in detail above, the present invention uses reinforcing members such as spring band shafts, linear bodies, cylindrical bodies, helical springs, etc., which are formed in a structure that can be separated by a fixed width in the axial direction of the brush member, to the fixed part. Because it is provided on adjacent brush members, it is possible to perform brushing under optimal conditions with a constant exposed length of the brush member, and it is also possible to cope with a large amount of wear and tear on the brush compared to conventional brushes that are not provided with reinforcing members. You can get a brush with an extremely long life.

In particular, rotating brushes have remarkable effects such as efficient brushing by maintaining a constant spread at the free end of the brush member due to centrifugal force.

Note that the present invention is not limited to the above-mentioned embodiments,
It goes without saying that, for example, the rotating brush does not necessarily have to be formed into a cylindrical shape, and can be modified in various ways without departing from the spirit of the invention.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2a is a perspective view of an embodiment of the present invention. 3b and FIGS. 3a and 3b are partially cutaway perspective views of other embodiments, respectively. 1...Elastic member, 2...Brush member,
3... Holder (fixed part), 4... Reinforcement member, 6, 7... Notch part.

Claims (3)

[Scope of utility model registration request] (1) A brush member made of a set of a plurality of thin wire elastic members, a fixing part that fixes one end of the brush member, and a reinforcing member surrounding the outer periphery of the brush member adjacent to the fixing part. The reinforcing member is formed in such a structure that it can be separated by a constant width in the axial direction of the brush member, and is separated so as to keep the exposed length of the other end of the brush member constant. Brush to do. (2) The brush according to claim 1, wherein the reinforcing member is provided with a notch, and the reinforcing member is separated at the notch. (3) The brush according to claim 1 or 2, wherein the fixed part transmits rotational force from a drive source to the brush member to rotate the brush member.