JPH0624675B2 - Fluid supply tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention advances a piston slidably provided in a fluid storage chamber in a shaft cylinder to move the fluid stored in the fluid storage chamber by the piston. The present invention relates to a fluid supply tool adapted to supply to a coating section at a front end of a cylinder.

(Prior Art and Problems Thereof) As a fluid supply tool related to the above, Japanese Utility Model Publication No. 50-109
As disclosed in Japanese Patent No. 25, by rotating a front shaft and a rear shaft that is rotatable, a screw rod that is also rotatable and slidable with the rear shaft is advanced along a screw hole of the front shaft, It is known that the piston at the front end of the screw rod presses the fluid contained in the front shaft to supply it to the pen tip at the front end of the front shaft.

However, the structure described above has the advantage that even if the stored fluid is a highly viscous liquid, it can be reliably supplied to the pen tip by pressing the fluid with the piston, but on the other hand Since the rear shaft must be rotated with respect to the front shaft, there is a problem in that it is troublesome to change the holding of the shaft cylinder each time, operate with both hands, and adjust the supplied fluid amount by rotating the rear shaft. It was

The present invention has been made in view of the above-mentioned problems,
A piston slidably provided in the fluid storage chamber inside the shaft cylinder is moved forward by a simple operation of pressing the operation knob provided on the shaft cylinder with a fingertip, and the fluid stored in the fluid storage chamber is moved by the piston. (EN) A fluid supply tool excellent in operability that can be supplied to a coating portion at a front end portion of a shaft cylinder.

(Means for Solving the Problems) The present invention has a coating portion at the front end of the shaft cylinder, and a slidable piston in a fluid storage chamber in the shaft cylinder communicating with the coating part. A screw rod having a screw thread on the outer surface and having a non-threaded portion in the longitudinal direction is connected to the piston, and a screw ring having a screw hole to be screwed into the screw rod is provided in a predetermined manner in the barrel. A rotating body, which is fixedly arranged at a position, is rotatably connected to the screw ring so as to be slidable and integrally rotatable with the screw rod. An operation knob biased rearwardly projects from the rear end of the barrel, and has a protrusion that reciprocates in the longitudinal direction in conjunction with the operation knob. A fluid supply tool for rotating the rotating body by moving the rotating body by pressing a knob. The rotating body has a plurality of blade portions having swingable blades having a tapered wall, and these blade portions are arranged in the circumferential direction of the outer surface of the rotating body via guide grooves and are arranged in front and rear. The blades in the front row and the blades in the rear row are arranged in opposite directions to each other, and each blade has its blade tip at the base of the tapered wall of one blade in the other row. By abutting, the one-way swing of the swing is prevented, and the tip of the blade of the blade located next to the blade of the mating row is brought into contact with the base of the tapered wall of itself. The blade portion is prevented from swinging in one direction, and the tapered wall as a whole is arranged in a zigzag manner on the outer surface of the rotating body, and the protruding portion is provided with the guide groove with respect to the rotating body. The blade is slidably inserted in the blade, and the protrusion swings the blade in one direction. And gist fluid supply device which is adapted to rotate the rotary body by sequentially moving the guide groove Te.

(Example) Hereinafter, the present invention will be described in detail based on an example.

1 to 5, reference numeral 1 is a coating portion provided at a front end portion of the barrel 2. In the illustrated example, the coating portion 1 is a pen tip 3 made of an elastic porous body, a fiber bundle body or the like. And a holder 5 for inserting and arranging the pipe portion 4 into the pen tip and the pen tip 3
And a tip member 6 for holding the holder 5 and the tip member 6 is fitted to the front end of the barrel 2 is shown. However, only the tip member 6 or the nib 3 is used. The shaft cylinder 2 may be directly attached to the front end portion of the shaft cylinder 2 to form the coating portion 1, and the coating portion 1 can be variously changed according to the type of fluid used. Reference numeral 7 denotes a fluid storage chamber provided in the barrel 2. The fluid storage chamber 7 stores liquid or powder for makeup or writing instruments. Reference numeral 8 denotes a piston slidably provided in the fluid storage chamber 7, and a screw rod 10 having a screw thread on the outer surface at the rear portion of the piston 8 and having two non-screw portions 9 in the longitudinal direction is provided. It is connected. Reference numeral 11 denotes a screw ring that is in contact with the front end of the inner cylinder 12 fitted to the rear portion of the shaft cylinder 2 and is fixedly arranged at a predetermined position in the shaft cylinder 2.
The screw ring 11 has a screw hole on its inner surface for screwing with the screw thread of the screw rod 10. Reference numeral 13 denotes a cylindrical rotary body that is rotatably connected to the rear portion of the screw ring 11, and the rotary body 13 includes swingable blades 15 having a tapered wall 14.
It has a plurality of blade portions 16 having. These blades 16 are
The blades 16 are arranged in the circumferential direction of the outer surface through the guide grooves 17 at various intervals, and this arrangement forms two rows of the blade portions 16 in the front and rear. In these two rows, the blades 16 in the front row and the blades 16 in the rear row are opposite to each other, and each blade 16 has a tip of its own blade 15 taper of one blade 16 in the other row. By abutting against the base of the wall 14, swinging in one direction among the above-mentioned swings is prevented, and at the base of the tapered wall 14 of itself, the blade 16 positioned next to the blade 16 of the mating row. By abutting the tips of the blades 15, the blades 16 are prevented from swinging in one direction. Therefore, the blade portion 16 has the tapered wall 14 arranged in a zigzag manner on the outer surface of the rotating body 13 as a whole.

Further, the rotary body 13 has a hole 18 which matches the cross section of the screw rod 10 so that it can be slidably and integrally rotated with the screw rod 18. 19 is biased rearward by a spring 20 stretched between the inner ring 1 and the screw ring 11.
2 is an operation knob that abuts the outer surface step portion 22 on the inner step portion 21 and projects the rear portion from the rear end of the barrel 2 to bring it to a steady position. The operation knob 19 has a key groove 23 formed on the outer surface. It is guided by the key 24 and can be moved only in the longitudinal direction. Further, the end portion 25 of the spring 20 has an operation knob 19
A projecting portion 27 that engages with the front end step portion 26 and projects inwardly of the front end step portion 26 is slidably fitted into the guide groove 17 of the rotating body 13.

Next, the operation will be described with reference to FIGS.

In the normal state of FIG. 1, the protruding portion 26 provided on the end portion 25 of the spring 20 has a rear guide groove 17 as shown in FIG. 6-A.
Is located in. Here, the operation knob 19 is set to the spring 20.
When pressed against the repulsive force, the protrusion 27 also moves forward in conjunction with the operation knob 19. The protrusion 2
The blade 7 presses the blade 15 when it comes into contact with the tapered wall 14 of the blade 15 provided so as to face the guide groove 17, so that the rotating body 13 rotates in the arrow direction. In the further forward movement of the protrusion 27, the adjacent blades 15 are pressed and deformed, and at the same time, the rotating body 13 rotates and the protrusion 27 moves to the adjacent front guide groove 17. The blades 15 that have been pressed and deformed return when the protruding portions 27 separate (see FIGS. 6-B, C, and D). If the pressing of the operation knob 19 is released, the operation knob 19 and the inward protruding portion 26 are moved rearward by the elastic force of the spring 20. The protruding portion 27 is the tapered wall 1 of the blade 15 provided so as to face the guide groove 17 in the same manner as in the advancing process.
The blade 15 will be pressed when it comes into contact with 4,
Then, the rotating body 13 rotates in the same direction as described above. In the further rearward movement of the protruding portion 27, the adjacent blade 15 is pressed and deformed, and at the same time, the rotating body 13 rotates and the protruding portion 27 moves to the adjacent rear guide groove 17 (6E). , Fig. F). The blade 15 that has been deformed by pressing returns when the protruding portion 27 separates, while the operation knob 19
Is returned to the retracted position, the inward protruding portion 26 is
Return to the normal state of Figure A.

In short, the rotating body 13 is rotated by a predetermined angle by pressing and releasing the operation knob 19 which is movable only in the longitudinal direction. Therefore, the screw rod 10 rotating integrally with the rotating body 13 is a screw rod. It is possible to move forward along the screw hole of the ring 11 and thus press the stored fluid in the fluid storage chamber 7 by the piston 8 connected to the front portion to supply it to the coating section 1.

In the illustrated example, the protrusion 27 interlocking with the operation knob 19 is shown as being constituted by the end portion 25 of the spring 20. It may be provided.

(Effects of the Invention) As described above, the fluid supply tool of the present invention has the coating part 1 at the front end of the shaft tube 2 and slides on the fluid storage chamber 7 in the shaft tube 2 communicating with the coating part 1. A movable piston 8 is provided, and a screw rod 10 having a screw thread on the outer surface and having a non-screw portion 9 in the longitudinal direction is connected to the piston 8 and is screwed to the screw rod 10. The screw ring 11 having a screw hole is the shaft cylinder 2
The screw ring 11 is fixedly arranged at a predetermined position in the
A rotating body 13 which is slidably and integrally rotatable with the screw rod 10 is rotatably connected, and an operating knob 19 which is biased rearward by a spring 20 stretched between the screw ring 11 and the screw rod 11. Protrudes from the rear end of the barrel 2, and
The operation knob 19 has a protrusion 26 that reciprocates in the longitudinal direction in association with the operation knob 19.
A fluid supply tool for rotating the rotating body 13 by moving the rotating body 1 by pressing the rotating body 1.
3 has a plurality of blade portions 16 having swingable blades 15 having a tapered wall 14, and these blade portions 16 are arranged in the circumferential direction of the outer surface of the rotating body 13 via guide grooves 17. Two rows are formed in the front and rear, and the front row blade section 16 and the rear row blade section 16 are in opposite directions to each other, and each blade section 16 has its tip end of the blade 15 of one row of the other row. By abutting against the base of the tapered wall 14 of the blade 16, the one-way swing of the swing is prevented, and the base of the taper wall 14 is positioned next to the blade 16 of the mating row. By contacting the tips of the blades 15 of the blades 16 that are in contact with each other, the blades 16 are prevented from swinging in one direction. As a whole, the tapered wall 14 is arranged on the outer surface of the rotating body 13 in a zigzag manner. The protrusion 2 is attached to the rotating body 13. Is slidably fitted in the guide groove 17, and the protrusion 26 swings the blade 15 in one direction to sequentially move the guide groove 17 to rotate the rotating body 13. The rotating body is rotated by a predetermined angle to advance the screw rod by a very simple operation of pressing the operating knob with a fingertip, and the piston is connected to the front portion to store it in the fluid storage chamber. Fluid can be supplied to the coating section at the front end of the barrel.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. FIG. 4 is an external perspective view of the rotating body of FIG. 1, FIG. 5 is a top view of a main part of FIG. 1, and FIGS. 6A to 6F are operation explanatory views. 1 ... Coating part, 2 ... Shaft cylinder, 7 ... Fluid storage chamber, 8 ...
Piston, 9 ... Non-screw part, 10 ... Screw rod, 11 ...
Screw ring, 13 ... Rotating body, 14 ... Tapered wall, 15 ...
... Blade, 16 ... Blade section, 17 ... Guide groove, 19 ... Operating knob, 20 ... Spring, 26 ... Projection section.

Claims (1)

[Claims] 1. A shaft cylinder (2) has a coating part (1) at a front end thereof and is slidable in a fluid storage chamber (7) in the shaft cylinder (2) communicating with the coating part (1). Has a unique piston (8),
A screw rod (10) having a screw thread on the outer surface and having a non-threaded portion (9) in the longitudinal direction is connected to the piston (8), and a screw hole to be screwed into the screw rod (10) is formed. A screw ring (11) having the screw ring (11) is fixedly arranged at a predetermined position in the barrel (2), and the screw ring (11) can rotate integrally with the screw rod (10) slidably and integrally. A body (13) is rotatably connected, and an operation knob (19) biased rearward by a spring (20) stretched between the body (13) and the screw ring (11) is provided on the barrel (2). The projection (26) projects from the rear end and reciprocates in the longitudinal direction in conjunction with the operation knob (19). The projection (26) is
A fluid supply tool configured to rotate the rotating body (13) by moving the operating knob (19) by pressing the rotating knob (19), wherein the rotating body (13) has a tapered wall (1).
4) has a plurality of blade portions (16) having swingable blades (15), and these blade portions (16) are circles on the outer surface of the rotating body (13) via guide grooves (17). The blades (16) in the front row and the blades (16) in the rear row are in opposite directions to each other, and each blade (16) is The tip of one's own blade (15) is attached to the tapered wall (1
By abutting against the base of 4), one of the swings is prevented from swinging, and at the same time, the tapered wall (14)
The tip of the blade (15) of the blade (16) located next to the blade (16) of the opposite row is brought into contact with the base of the blade to prevent the blade (16) from swinging in one direction. The taper wall (14) is arranged on the outer surface of the rotating body (13) in a zigzag manner as a whole, and the protruding portion (26) is provided with the guide groove (26) with respect to the rotating body (13). 17) is slidably fitted in the protrusion (2).
6) swings the blade (15) in one direction to sequentially move the guide groove (17), whereby the rotor (1)
3) A fluid supply tool adapted to rotate.