JPH08290081A - Hairbrush - Google Patents

Abstract

PURPOSE: To realize simplification of a structure for a hairbrush by incorporating an intake valve into the member of the body side of the hairbrush. CONSTITUTION: A hairbrush is formed by welding and connecting a forked member 2 to the body 1 of the hairbrush and unifying both sides and also attaching an intake valve 3 to the forked member 2. The forked member 2 is constituted of a cylindrical member consisting of one member. The intake valve body 31 of the intake valve is inserted into the inside thereof and coming- off prevention is performed by coming-off prevention means 9. The forked member 2 is constituted by inserting a valve shaft 32 in the center of the body 31 of the intake valve and seating a valve body 34 fitted in the valve shaft 32 for the valve seat part. Simplification of a structure is realized by interposing the intake valve 3 in the forked member 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to simplifying the structure of an airbrush.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional airbrush. This airbrush includes an airbrush body formed in a substantially pencil shape. The needle 106 is slidably fitted and inserted along the axis of the airbrush main body, and the needle 10
6 is a pusher 10 provided in the middle of the airbrush body 1
By sliding in the axial direction by 2, the nozzle 103 at the tip of the main body 101 ejects the supply air together with the coating material to perform fine spraying.

An opening 101b is provided in the middle of the airbrush main body 101, and the upper end of the fork member 104 is fitted and connected to the opening 101b, and the main body 1 is welded by soldering or the like.
It is integrated with 01. Fork member 10 having a substantially tubular shape
4, an air supply passage 104a is formed inside the air supply passage 10a.
4a communicates with the air supply passage 101a formed along the inside of the airbrush body 101, and compressed air supplied from the air supply hose is supplied to the nozzle 103 through the air supply passages 104a and 101a described above. I am doing it.

Further, a valve fitting 105 constituting an air supply valve is screwed and connected to the lower end opening of the fork member 104. The valve fitting 105 constitutes an air supply valve. The valve shaft 107 is inserted along the inner shaft of the valve fitting 105, and the valve body 108 integrally formed in the intermediate portion of the valve shaft 107 is hollow in the fitting 105. Valve seat 10 formed on the inner circumference of
9 is seated from below, and the valve body 108 is elastically biased against the toilet seat 109 by the spring 110 mounted in the valve fitting 105 to maintain the valve closed state.

In the above-described air supply valve, the lower end of the pusher 102 and the upper end of the valve shaft 107 come into contact with each other, and the pusher 102 is pushed, whereby the valve shaft 107 and the valve body 108 move downward and open. In the valve state, supply of air, that is, spraying of paint is started.

[0006]

In the conventional airbrush constructed as described above, the fork member 104 is connected to the intermediate portion of the airbrush main body 101, and the joint portion is integrally welded by soldering or the like. There is. And the above-mentioned fork member 1
Connect the valve fitting 105 to the lower end port of 04 by screwing,
An air supply hose 110 that communicates with an air supply source such as a compressor is connected to the lower end opening of the valve fitting 105 by screwing.

Valve fitting 105 that constitutes the air supply valve
Since it is an essential component for an airbrush, it should be provided integrally with the airbrush body 101. However, the valve fitting 105 described above is
Since the O-ring 108a for airtightness is fitted and the spring 110 is elastically mounted, it is necessary to perform regular maintenance or replacement of these parts. Therefore, in the conventional airbrush, the valve fitting 105 that constitutes the air supply valve is formed separately from the fork member 104, and both members 1
By connecting 04.105 by screwing, the valve body 10
By removing only the valve fitting 105 from 1, the maintenance work of the air supply valve can be easily performed.

However, if only the valve fitting 105 constituting the air supply valve is formed separately from the member on the main body 1 side as described above, the number of parts increases, the manufacturing cost increases, and the peripheral surface of the valve fitting 105 increases. In addition, since the knurling is engraved in consideration of the attachment and detachment work, there is a problem in that the airbrush main body having a smooth curved surface and the valve fitting 105 do not match in design.

The present invention has been made in view of the above-mentioned conventional circumstances, and an object thereof is to rationalize an air supply valve to a member on the main body side of an airbrush as compared with the conventional airbrush as described above. By incorporating it, the structure is simplified.

[0010]

In order to achieve the above-mentioned object, according to the present invention, the upper end of a fork member serving as a connection portion of an air supply hose is welded to an intermediate portion of a substantially pencil type airbrush body. In addition to being integrated, an air supply valve that is opened and closed by a pusher attached to the airbrush body is attached to the fork member, and by opening this air supply valve,
In an airbrush in which air supplied from an air supply hose passes through the inside of the fork member and the air supply passage communicating with the inside of the airbrush body and is blown out from the nozzle at the tip of the airbrush body together with the paint, the fork member is substantially cylindrical In this case, the air supply valve is provided inside the fork member.

Further, according to the present invention, the upper end of a fork member serving as a connecting portion of the air supply hose is welded and integrated to an intermediate portion of a substantially pencil-shaped airbrush body, and the airbrush is connected to the fork member. An air supply valve that is opened and closed by a pusher attached to the main body is attached, and by opening this air supply valve, the air supply supplied from the air supply hose can be communicated along the inside of the fork member and the airbrush main body. In the airbrush that passes through the air supply passage and blows out together with the paint from the nozzle at the tip of the airbrush main body, the fork member is composed of a substantially cylindrical single member, and the substantially lower end of the fork member has a substantially cylindrical air supply valve main body. And the lower end of the valve body is prevented from coming off by the retaining means detachably fixed to the inside of the lower end opening of the fork member, and along the central portion of the hollow portion of the air supply valve body. Valve stem The valve body, which is slidably inserted and fixed in the middle portion of the valve shaft, is seated from below against the valve seat that is provided around the inner peripheral surface of the hollow portion of the air supply valve body. An elastic body is elastically mounted between the stopper and the stopper, and the upper end of the valve shaft biased upward by the elastic body faces the operating portion of the pusher of the airbrush body.

[0012]

According to the above means, the upper end of the fork member serving as the connecting portion of the air supply hose is connected to the intermediate portion of the substantially pencil-shaped airbrush main body, and they are integrated by welding. The air supply valve attached to the fork member is provided so as to be housed inside the fork member, and the air supply supplied from the air supply hose when the valve is opened and closed passes through the air supply valve and It is blown out together with the paint from the nozzle at the tip of the main body through the air supply passage inside and inside the air brush main body.

Further, in the airbrush according to the second aspect, the fork member connected and integrated with the airbrush main body by welding is constituted by a tubular member, and the tubular air supply valve main body is formed from the lower end opening of the fork member. It is inserted. A valve shaft is inserted through the center of the hollow portion of the air supply valve body. Further, a valve element is provided at an intermediate portion of the valve shaft, the valve element is seated from below against a toilet seat provided around the inner peripheral surface of the hollow portion of the valve body, and is closed by an urging force of an elastic body. Is maintained. The upper end of the valve shaft faces an operating portion of a pusher attached to the airbrush body, and by pushing down the pusher, the valve shaft and the valve body are pushed down to open the air supply valve.

Further, the air supply valve body is prevented from coming off by a coming-off preventing means which is detachably attached to the inside of the lower end opening of the fork member. Therefore, the air supply valve can be taken out from the inside of the fork member by removing the retaining means.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. The airbrush shown in FIGS. 1 to 3 is an airbrush main body 1 formed in a substantially pencil shape using a metal such as brass.
The upper end portion of the fork member 2 serving as the connecting portion of the air supply hose b is connected to and integrated with the intermediate portion of the air supply hose b, and the air supply valve 3 is provided inside the fork member 2.

The airbrush main body 1 formed in a substantially pencil shape has a front portion 1a and a rear portion 1b screwed together, and a needle 4 is slidably inserted along an axial core portion inside the main body 1. There is.

The tip of the needle 4 is inserted into the nozzle hole 5a of the nozzle 5 provided at the tip of the airbrush body 1, and is constantly urged forward by the repulsive force of the coil spring 14 mounted in the rear portion of the body 1. I am doing it. Needle 4
Engages with a pusher 6 provided in the middle portion of the airbrush main body 1 and is operated to incline the pusher 6 rearward to retreat in the axial direction to open the nozzle hole 5a. Thereby, the paint supplied from the paint cup 7 to the nozzle 5 is blown out as fine particles from the nozzle hole 5a together with the jet of compressed air. As described above, the compressed air supplied to the nozzle 5 is supplied through the air supply passages 8a and 8b communicating with the inside of the airbrush body 1 and the fork member 2. The air supply passages 8a, 8
b communicates with an air supply hose b connected to the lower end of the fork member 2.

A pusher 6 provided in the middle of the airbrush body 1 has a shaft portion 62 projecting from the lower surface of the button 61 inserted through a notch 11 formed in the upper surface of the airbrush body 1. A push shaft 63 is foldably connected to the lower end of the shaft portion 62 via a pivot pin 64.
Is inserted up to the upper end of the fork member 2 so that it can be pushed up and down. A tilting plate 12 is provided in the notch 11 of the airbrush main body 1, and the tip end of the tilting plate 12 is brought into contact with the shaft portion 62 of the pusher 6 from behind. Further, the lower end portion of the tilting plate 12 is brought into contact with the front end portion of the needle chuck 13 that holds the needle 4, so that when the pusher plate 6 is tilted rearward, the shape moving plate 12 is moved. The needle 4 is configured to be moved rearward via 12.

The fork member 2 connected to the middle portion of the airbrush body 1 is a substantially cylindrical member formed by using metal such as brass, like the airbrush body 1, and the upper end opening of the fork member 2 of the airbrush body 1. The members 1 and 2 are integrated with each other by fitting them into the opening 1c formed on the lower surface of the intermediate portion and pouring solder or silver braze into the joint to weld them.

As shown in FIGS. 2 and 3, the fork member 2 has an engaging portion 21 projecting from the upper end portion which fits into the opening 1c of the airbrush body 1 in a shape-matching state, and the lower end portion A connection port 22 is formed on the outer periphery for connecting the connection fitting b1 at the tip of the air supply hose b by screwing. The upper end portion of the fork member 2 is provided with an air supply passage 8b extending from the hollow portion 23 of the fork member 2 toward the upper end opening end face, and as described above, the fork member 2 is formed.
When the upper end of the airbrush main body 1 is connected to the connection port 1c of the airbrush main body 1, the air supply passage 8b and the air supply passage 8a formed along the inside of the airbrush main body 1 communicate with each other.

As described above, the air brush body 1 and the fork member 2 which are integrated by welding are plated on the entire surface. As a result, the fork member 2 connected to the airbrush body 1 forms a smooth curved surface without a seam up to the lower end opening to which the air supply hose b is connected. In the hollow portion 23 of the fork member 2, a valve body 3 which constitutes a body case of the air supply valve 3 is provided.
1 is fitted. The valve body 31 is formed in a substantially tubular shape,
An O-ring 25 for airtightness is fitted on the outer periphery of the intermediate portion,
Attach a similar O-ring 24 to the upper end face,
It is inserted into the hollow portion 23 from the lower end opening of the.

The valve body 31 fitted in the hollow portion 23 of the fork member 2 has a step portion 3 formed on the outer peripheral surface of the tip opening portion.
1a is inserted and inserted until it comes into contact with the contact surface 26 provided on the inner periphery of the upper portion of the hollow portion 23 of the fork member 2, and the set screw 9 is screwed into the lower end opening of the hollow portion 23. Thus, it is fixed in a state of being fitted in the hollow portion 23. Further, the O-ring 24 attached to the end face of the upper end opening of the valve body 31 is sandwiched between the O-ring 24 and the step portion of the small diameter portion 27 formed on the inner circumference of the upper end opening of the hollow portion 23 of the fork member 2, and the center of the O-ring 2 is held. The push shaft 63 of the pusher 6 is inserted into the portion from above.

The valve shaft 32 is inserted through the shaft core of the valve body 31. The valve shaft 32 is inserted between a hole 33 formed in the upper portion of the valve body 31 and a hole 9a formed in the core of the set screw 9 screwed into the lower end opening of the fork member 2 so as to move vertically. It is slidably supported, and a disc-shaped valve element 34 is integrally formed at the intermediate portion of the coaxial shaft 32. A ring-shaped packing 34a is fitted on the upper surface of the valve body 34, and the valve seat 35 is provided around the intermediate portion inside the valve body 31 by sliding the valve shaft 32.
It is configured to be seated from below with respect to.

A coil spring 36 is elastically mounted between the valve element 34 and the set screw 9 in a compressed state.
The valve body 34 is urged so as to always sit on the upper valve seat 35. Further, as described above, the valve shaft 32, which is biased upward by the coil spring 36, has its upper end portion protruding upward from the hole 33 in the upper portion of the valve body 31, penetrates the airbrush body 1, and passes through the valve body 31. Abuts on the lower end of the push shaft 63 reaching the upper end of the. Therefore, when the push shaft 63 is pushed down by pushing down the pusher 6, the valve shaft 32 and the valve body 34 move downward,
The air supply valve 3 is opened.

The set screw 9, which is screwed into the lower end of the fork member 2, has two vent holes 9b with a hole 9a bored in the core portion sandwiched therebetween. Therefore, the air supply supplied from the air supply hose b connected to the connection port 22 of the fork member 2 flows into the valve body 31 through the vent hole 9b cut out in the set screw 9, and the hollow of the valve body 31. Then, the gas is supplied to the air supply passages 8b and 8a through a lateral hole 37 that passes through the above portion and further laterally penetrates the upper portion of the valve body.

In the air brush constructed as described above, when the air supply valve 3 is disassembled for maintenance or repair work, the set screw 9 screwed into the lower end opening of the fork member 2 is removed, and the inside of the fork member 2 is removed. Pull out the valve body 31. The coil spring 36 and the valve shaft 32 are taken out from the pulled-out valve main body 31 and disassembled, and each part is inspected. Incidentally, in the above-mentioned embodiment, the valve body 3
Although the set screw 9 is used as the member for preventing the disengagement of No. 1, other than the set screw 9 described above may be used as the disengagement preventing means of the valve body. You may use the ring-shaped member fitted in, and a latch pin, a screw, etc.

[0027]

As described above, according to the present invention, the air supply valve is provided inside the fork member that is integrally connected to the intermediate portion of the airbrush body. The constituent valve fittings are not exposed in the form of being connected to the lower end of the fork member, and the appearance of the fork member portion of the airbrush can be neatly gathered while the air supply valve is attached to the fork member.

In the airbrush according to a second aspect of the present invention, the air supply valve main body is fitted and inserted into the inside of the substantially tubular fork member to prevent the air supply valve main body from coming off, and the valve shaft and the valve are provided inside the air supply valve main body. While constructing a valve structure consisting of a body and a toilet seat,
Since the elastic body is elastically mounted between the air supply valve main body and the retaining means, the structure in which the air supply valve is detachably mounted inside the fork member integrated with the airbrush main body is simple structure. Can be realized in. As a result, the valve fittings required in the conventional airbrush are unnecessary, and the manufacturing cost can be reduced by reducing the number of parts. Furthermore, since the joints and knurls of the valve fittings, which are conventionally exposed at the bottom of the fork member, are eliminated, the design of the fork member can be neatly integrated in harmony with the smooth curved surface of the airbrush body.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an airbrush according to the present invention.

FIG. 2 is an enlarged vertical sectional view showing a fork member portion of the airbrush.

FIG. 3 is an exploded perspective view showing a fork member and an air supply valve.

FIG. 4 is a vertical cross-sectional view showing a conventional airbrush.

[Explanation of symbols]

 b ... Air supply hose 1 ... Airbrush main body 2 ... Fork member 3 ... Air supply valve 9 ... Set screw 31 ... Valve body 32 ... Valve shaft 34 ... Valve body 35 ... valve seat

Claims (2)

[Claims] 1. An upper end of a fork member serving as a connecting portion of an air supply hose is welded and integrated to an intermediate portion of a substantially pencil-shaped airbrush main body, and the fork member is attached to the airbrush main body. An air supply valve that is opened and closed by a pusher is attached, and by opening this air supply valve, the air supply passage that connects the air supply supplied from the air supply hose along the inside of the fork member and the airbrush body. In the airbrush which passes through the inside and blows out together with the paint from the nozzle at the tip of the airbrush main body, the fork member is constituted by a substantially cylindrical single member, and the air supply valve is provided inside the fork member. 2. An upper end of a fork member serving as a connecting portion of an air supply hose is welded and integrated to an intermediate portion of a substantially pencil-shaped airbrush main body, and the fork member is attached to the airbrush main body. An air supply valve that is opened and closed by a pusher is attached, and by opening this air supply valve, the air supply passage that connects the air supply supplied from the air supply hose along the inside of the fork member and the airbrush body. In the airbrush which passes through the inside and blows out together with the paint from the nozzle at the tip of the airbrush main body, the fork member is constituted by a substantially cylindrical single member, and the substantially cylindrical air supply valve main body is inserted from the lower end opening of the fork member, The lower end of the valve body is prevented from coming off by a retaining means that is detachably fixed in the lower end opening of the fork member, and the valve shaft is slid along the center of the hollow portion of the air supply valve body. Freely The valve body, which is inserted and fixed to the intermediate portion of the valve shaft, is seated from below against the valve seat provided around the inner peripheral surface of the hollow portion of the air supply valve body, and the valve body and the retaining means are provided. An airbrush in which an elastic body is elastically mounted between the airbrush and the upper end of the valve shaft urged upward by the elastic body faces the operating portion of the pusher of the airbrush body.