JP3026429U - Air brush - Google Patents

Abstract

(57) [Abstract] [Purpose] A conventional airbrush is provided with means for operating the adjusting screw and the needle without removing the cap body. A cap body 2 is detachably connected to a rear portion of an airbrush main body 1, and openings 21 and 22 are provided at positions corresponding to the adjusting screw 6 and a rear portion of a needle 3 on a peripheral wall of the cap body 2. The adjustment screw 6 and the rear portion of the needle 3 can be operated from 22.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to an airbrush, and more particularly to an airbrush capable of adjusting a needle adjusting screw and a needle while a cap body at a rear portion of a brush main body is attached.

[0002]

[Prior art]

 As shown in FIG. 7, in a conventional air brush 100, a needle 103 is slidably inserted back and forth along an axis of a brush main body 101 having a nozzle 102 at its tip, and an intermediate portion of the brush main body 101 is inserted. By pushing down the operating rod 104 provided at the opening, the air valve 105 is opened, whereby compressed air supplied from the air supply port 112 connected to the lower portion of the brush main body 101 is vented in the brush main body 101. The nozzle is introduced into the passage 106 and blown out from the nozzle 102.

Further, in the air brush 100, when the operating rod 104 is pushed down as described above, blowing of compressed air is started from the nozzle 102, and further, by pulling the operating rod 104 toward the rear of the brush main body 101, The needle chuck 107 is retracted through the operating plate 109 that is bent and formed into a substantially S shape. When the needle chuck 107 is retracted, the tip of the needle 103 held by the needle chuck 107 is retracted and the nozzle 102 is opened. Then, the liquid paint sucked up from the container 108 as the compressed air is blown out is blown out from the opened nozzle 102 in the form of a fine mist. That is, the compressed air is started to be blown by the operation of pushing down the operating rod 104, and the paint is blown out by the operation of pulling the operating rod 104 backward.

In the air brush 100, an adjusting screw 110 for tightening and opening a grip portion of the needle chuck 107 is screwed into a rear end of the needle chuck 107. The adjusting screw 110 described above is for adjusting the gripping position of the needle 103 by the needle chuck 107. For example, by loosening the adjusting screw 110, sliding the needle 103 backward by a certain amount, and then tightening the adjusting screw 110 again, the nozzle 102 is always opened by a predetermined amount while the operating rod 104 is not retracted and operated. Can be maintained in a standing state. Therefore, in the above state, by depressing the operating rod 104 (does not pull it backward), it is possible to constantly blow a fixed amount of paint. Incidentally, this method of use is called a single action, and the normal method of pushing down the operating rod 104 and pulling it back further is called a double action, as described above.

[0005]

[Problems to be solved by the device]

 When the above-mentioned conventional airbrush is actually used in a single action, after removing the cap body 111 screwed on the rear end of the brush main body 101, the adjustment screw 110 is loosened. Then, the operating rod 104 is pushed down and retracted, and when the desired amount of paint sprayed out is obtained, the finger is released from the operating rod 104. Since the adjusting screw 110 is loosened as described above, the needle 103 does not return to the original position as usual, but stays in the position where the above-mentioned blowing amount is obtained while retracting. After that, the operation of merely pushing down the operating rod 104 is repeated to continue the use while blowing a fixed amount of paint.

That is, in the conventional airbrush 100, it is necessary to remove the cap body 111 at the rear part of the brush body 101 and loosen the adjusting screw 110 every time when the airbrush 100 is used in a single action. When working while alternately using double action, it is necessary to remove the cap body 111 each time, which is very troublesome.

In the air brush 100, when the needle 103 is replaced due to damage to the tip of the needle 103 or the like, the cap body 111 is removed from the brush main body 101 and the adjusting screw 110 is used as described above. It was necessary to loosen the needle and pull out the needle 103.

The present invention is to provide a conventional airbrush as described above with means capable of performing the sliding operation of the adjusting screw and the needle without removing the cap body.

[0009]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a needle chuck that inserts a needle for opening and closing the nozzle into a shaft core portion of a substantially cylindrical brush main body having a nozzle at the tip and grips the needle. Is fitted along the axis of the brush main body, and the needle chuck is configured to be movable back and forth in the axial direction by the operation of the operating rod provided on the brush main body, and the needle chuck can be tightened and released. Extend the chuck adjusting screw and the rear side of the needle rearward from the rear end of the brush body, and attach / detach the cap body that covers the adjusting screw and the rear portion of the needle to the rear part of the brush body. In the airbrush that is operably connected, an opening for operation is opened at a position corresponding to the adjusting screw and the rear portion of the needle on the peripheral wall of the cap body.

The air brush is more effective when a through hole for inserting and removing the needle is opened in the rear end surface of the cap body.

In the air brush, the opening provided on the peripheral wall of the cap body may be opened so that one side surface and the other side surface of the peripheral wall face each other.

According to the above means, the following actions are involved. The adjustment screw extending rearward from the rear end of the brush main body and the rear part of the needle are covered with a cap body that is detachably connected to the rear part of the brush main body, but are provided on the peripheral wall of the cap body. The adjusting screw and the rear portion of the needle are exposed from the opening, and it becomes possible to perform, for example, the operation of loosening the adjusting screw or sliding the needle in the axial direction from the outside with the cap still attached.

Further, in the case where a needle through hole is formed on the rear end face of the cap body, the needle slid in the axial direction by loosening the adjusting screw as described above is pulled out from the above through hole and removed. On the contrary, it becomes possible to insert it from the same hole and mount it again. Further, in the case where the opening provided on the peripheral wall of the cap body is opened so that one side surface and the other side surface of the same peripheral wall face each other, a finger is inserted through the opening facing each other, and the adjustment screw and the needle rear portion are pinched from both sides. You can operate it.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

 An embodiment of the present invention will be described below with reference to the drawings. The airbrush shown in FIG. 1 is provided with a nozzle 7 which is a blowing hole for compressed air and liquid paint at the tip of a brush body 1 formed in a substantially cylindrical shape, and the nozzle is arranged along the axis of the brush body 1. The liquid paint supplied from the container 8 suspended from the front part of the brush main body 1 is inserted by inserting the needle 3 for freely opening and closing 7 so that it can slide forward and backward, and retracting the needle 3 by operating the operating rod 4. Is blown out from the nozzle 7 together with the jetting of compressed air.

A connecting cylinder 9 serving as a connecting port of a compressed air supply hose (not shown) is screwed to the forked portion 1a provided in the middle of the brush body 1, and the air valve 10 is provided in the connecting cylinder 9. Is installed internally. The air valve 10 is configured to open by pushing down the operation rod 4. When the air valve 10 is opened, compressed air flows into the brush main body 1 from the connecting cylinder 9 serving as an air supply port, passes through the ventilation passage 11 provided in the main body 1, and is blown out from the nozzle 7. Is made like.

The operating rod 4 is supported so that it can be pushed down by connecting the pushing rod 4b to the tip end of the pushing rod 4b via a pivot shaft 4a and inserting the pushing rod 4b into the shaft core portion of the forked portion 1a of the brush main body 1. I am doing it. Further, the operating rod 4 is formed to be bendable from the pivot 4a and tilts rearward by a pulling operation. The tip of the pushing tube 4b is connected to the air valve 10 so that the air valve 10 is opened by pushing down the operating rod 4.

On the other hand, the needle 3 that is inserted into the shaft core of the brush body 1 is supported while being inserted into the needle chuck 5 that is inserted along the shaft core of the rear part of the brush body. The needle chuck 5 holds the needle 3 and supports it so as to be movable back and forth in the axial direction, and has a substantially tubular shape. The needle chuck 5 is inserted into the rear shaft core of the brush main body 1 so as to be slidable forward and backward, and is supported in such a state that the rear end thereof protrudes somewhat from the rear end of the brush main body 1.

Further, an adjusting screw 6 is screwed on the rear end of the needle chuck 5 protruding from the rear end of the brush main body 1. By tightening the adjusting screw 6, the diameter of the rear end opening of the brush main body 1 is adjusted. The needle 3 that is reduced in size and inserted into the hole of the needle chuck 5 is configured to be clamped and gripped. The needle 3 is gripped in a state in which about 1/3 of the rear end side extends rearward from the adjusting screw 6.

The needle chuck 5 is always urged forward by the repulsive force of the coil spring 12 mounted in the middle of the brush body 1. Further, an operating plate 13 which is bent and formed in a substantially S shape is interposed between the front end of the needle chuck 5 and the operating rod 4. As a result, when the operating rod 4 is pulled rearward against the repulsive force of the coil spring 12 and tilted, the chuck 5 and the needle 3 slide rearward through the operating plate 13, and the brush main body moves. 1 The nozzle 7 at the front end is opened, and the paint sucked up from the container 8 is blown out from the nozzle 7. That is, the air brush is configured such that when the operating rod 4 is pushed down, the ejection of compressed air from the nozzle 7 is started, and further the operating rod 4 is drawn backward and tilted to blow the paint. I am doing it.

A cap body 2 is fitted to the rear end portion of the brush body 1 described above so as to cover the adjustment screw 6 and the rear portion of the needle 3. As shown in FIGS. 1 and 2, the cap body 2 is a tubular body having a closed rear end opening, and a screw tubular body 2c screwed into the rear end opening of the brush body 1 is integrally fitted to the front end opening. It has been configured. Further, openings 21 and 22 are opened at positions corresponding to the adjusting screw 6 and the rear portion of the needle 3 on the peripheral wall of the cap body 2.

As shown in FIGS. 4 and 5, the openings 21 and 22 of the cap body 2 are opened in such a positional relationship that the right side surface and the left side surface of the peripheral wall of the cap body 2 face each other. A finger is inserted through the openings 21 and 22 so that the adjusting screw 6 and the rear portion of the needle 3 located at the axial core portion in the cap body 2 can be pinched. Therefore, with the air brush, with the cap body 2 still attached, the operation of inserting the finger through the openings 21 and 22 to loosen or tighten the adjustment screw 6, and the operation of sliding the needle 3 in the axial direction. Can be done freely. The shape of the cap body 2 having the openings 21 and 22 opened as described above is maintained by the two connecting portions 2b along the upper and lower surfaces and the partitioning portion 2c between the openings 21 and 22. 3 has a function of protecting the rear part.

A through hole 23 is formed in the shaft core portion on the rear end surface of the cap body 2. As a result, the needle 3 into which the finger is inserted through the opening 22 and slid rearward as described above can be pulled out from the through hole 23. On the contrary, it is also possible to insert the removed needle 3 through the through hole and mount it in the needle chuck 5 as it is.

Incidentally, when the cap body 2 and the screw tubular body 2a connected to the front end port thereof are integrated, first, the screw tubular part 2a is screwed into the rear end port of the brush main body 1 and screwed into the state. To do. After that, in a state where the cap body 2 and the brush body 1 are aligned in the circumferential direction, an adhesive is applied to the outer periphery of the rear portion of the screw cylinder 2a, and the front end opening of the cap body 2 is press-fitted. The members are integrated. As described above, by integrally forming the cap body 2 and the screw cylinder body 2a in the aligned state, when the cap body 2 is screwed into the rear end opening of the brush body 1, the end surface of the screw cylinder body 2a is brushed. In the state where the cap body 2 and the brush body 1 are in contact with the rear end surface of the body 1, the circumferential positional relationship between the cap body 2 and the brush body 1 is the same, and the openings 21 and 22 are accurately positioned on the left and right side surfaces of the cap body 2. Like

In the air brush described above, the openings 21 and 22 of the cap body 2 are positioned on the left and right side surfaces when the cap body 2 is screwed to the rear end of the brush body 1. However, the positions of the openings 21 and 22 may be other than the left and right side surfaces, and for example, the openings 21 and 22 may be oriented in the vertical direction.

Further, the airbrush of the present invention does not need to form the through hole 23 in the rear end surface of the cap body 2 in this case, but in this case, the needle 3 cannot be pulled out with the cap body 2 attached. The operation of loosening the adjusting screw 6 and sliding the rear portion of the needle 3 can be performed in the same manner as in the above-described embodiment.

The opening in the above embodiment is divided into the opening 21 corresponding to the adjusting screw 6 and the opening 22 corresponding to the rear portion of the needle 3, but the opening formed in the cap body 2 is The opening 20 of the cap body 2'shown in FIG. 6 may be entirely opened from the front part to the rear part of the cap body 2 '.

The opening provided on the peripheral wall of the cap body is preferably opened in a state where the openings face each other on the peripheral surface of the cap body like the above-mentioned airbrush in order to improve operability. The part may be opened only on one side surface of the cap body 2. In this case, the operability is reduced, but it is possible to operate the adjusting screw and the rear part of the needle from the opening without removing the cap body. (Not shown).

[0028]

As described above, the present invention provides an opening in the peripheral wall of the cap body that is detachably connected to the rear part of the brush body, and the adjusting screw and needle can be adjusted from the opening. Since it is configured as described above, for example, loosening the adjusting screw and sliding the needle when performing a single action of the air brush are performed directly from the outside of the cap with the cap body attached to the brush body. be able to. As a result, it is possible to significantly improve the efficiency of work that uses a lot of single actions.

In the case where the needle through hole is formed in the rear end surface of the cap body like the air brush of claim 2, loosen the adjustment screw from the opening of the cap body and slide it in the axial direction as described above. The needle can be removed by pulling it backward from the through hole on the rear end face of the cap body, or by inserting it from the through hole and reattaching it as before, making it easy to replace the needle with the cap body attached. It can be carried out.

Further, in the airbrush of the third aspect, in the case where the opening provided in the peripheral wall of the cap body is opened so as to face one side surface and the other side surface of the peripheral wall, the openings are opened in relative directions. You can insert your finger through the opening and pinch the adjusting screw and the rear part of the needle from both sides, so the operability when loosening the adjusting screw or sliding the needle is very good. Further, since the portions other than the openings in the peripheral wall of the cap body are formed to face each other in the same manner as the above-mentioned openings, even if the above-mentioned openings are largely opened in the peripheral wall of the cap body, the cap is formed. It is possible to sufficiently secure the strength required for the body and the needle protection function.

[Brief description of drawings]

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

FIG. 2 is a side view showing the latter half of the airbrush.

FIG. 3 is an exploded perspective view showing a state in which a cap body is removed from the airbrush body.

FIG. 4 is a plan view showing the latter half of the airbrush body.

FIG. 5 is a plan view of the latter half of the airbrush body showing a state where the needle is slid backward.

FIG. 6 is a perspective view showing a cap body having an opening entirely opened.

FIG. 7 is a vertical cross-sectional view showing a conventional airbrush.

[Explanation of symbols]

 1 ... Brush main body 2 ... Cap body 3 ... Needle 4 ... Operating rod 5 ... Needle chuck 6 ... Adjusting screw 7 ... Nozzle 21, 22 ... Opening 23. ..Through holes

Claims (3)

[Scope of utility model registration request] 1. A needle core that inserts a needle for opening and closing the nozzle into a shaft core portion of a substantially cylindrical brush body having a nozzle provided at a tip thereof, and holds a needle chuck for holding the needle chuck in the shaft core portion of the brush body. The needle chuck, the needle chuck is configured to be movable back and forth in the axial direction by the operation of an operating rod provided on the brush main body, and a chuck adjusting screw for adjusting the needle chuck so that the needle chuck can be tightened and released; In the airbrush, wherein and are extended rearward from the rear end portion of the brush main body, and a cap body that is fitted so as to cover the adjustment screw and the rear portion of the needle is detachably connected to the rear portion of the brush main body. An air brush formed by opening an operation opening at a position corresponding to the adjusting screw and the rear portion of the needle on the peripheral wall of the cap body. 2. The air brush according to claim 1, wherein a through hole for inserting and removing a needle is formed in a rear end surface of the cap body. 3. The airbrush according to claim 1, wherein the opening provided on the peripheral wall of the cap body is opened so as to face one side surface and the other side surface of the peripheral wall.