JPH0310892Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention can supply high viscosity liquids and powders for cosmetics, writing, etc. stored in the barrel to the outflow section located at the front end of the barrel. The present invention relates to a fluid supply device as described above, and more particularly, to a fluid supply device that can reliably supply stored fluid to an outflow portion with a simple operation of pressing an operation knob provided on a shaft cylinder with a fingertip. .

(Prior art and its disadvantages) In a fluid supply device that stores a fluid such as a high viscosity liquid or powder in a barrel, a fluid that can reliably supply the fluid to an outflow portion provided at the tip of the barrel Requires extrusion means.

As disclosed in Japanese Utility Model Publication No. 50-10925, a fluid supplying device having such a fluid extrusion means is capable of rotating a front shaft and a rotatable rear shaft, thereby rotating the same as the rear shaft, and A slidable screw rod is advanced along the screw hole of the front shaft, and a piston at the tip of the screw rod presses the liquid stored in the front shaft and supplies it to the pen tip at the tip of the front shaft. something is known.

However, with the structure described above, even if the liquid is highly viscous, it is possible to achieve the intended purpose of pressing the high viscosity liquid and supplying it to the pen tip. The rear shaft must be rotated with respect to the front shaft each time, and the feeding operation is very troublesome because it requires changing the grip of the shaft cylinder and operating with both hands each time.

(Purpose of the invention) The present invention was created in view of the above-mentioned problems, and can be used for cosmetics and writing that can be stored inside the barrel by simply pressing the operating knob provided on the barrel with your fingertips. The purpose of the present invention is to provide a fluid supply tool that can reliably supply highly viscous liquids and powders such as powders and the like to an outflow section.

(Structure of the invention) The present invention will be described in detail below based on embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 1 denotes an outflow portion disposed at the front end of the barrel 2, and in the illustrated example, there is a pen nib 3 made of a porous material, a fiber convergence material, etc., and a pipe connected to the pen nib 3. A pipe holder 5 into which the section 4 is inserted is held by a fixed ring 6, and the fixed ring 6 is fixedly arranged on the front end of the shaft cylinder 2 by means of press-fitting, screwing, etc. Various changes can be made depending on the application and the type of fluid used, such as making the front end opening of the fixed ring 6 small in diameter and using it as the outflow part 1 without using the pen tip 3 or pipe holder 5 described above. 7
is a fluid storage chamber provided in the shaft tube 2 and communicated with the outflow portion 1, and the fluid storage chamber 7 contains cosmetics,
Highly viscous liquids and powders for writing etc. are stored. A piston 8 is slidable in the fluid storage chamber 7, and a press rod 9 having a circular cross section and an appropriate length is connected to the piston 8. Reference numeral 10 denotes a cylindrical body slidably fitted onto the press rod 9, and the cylindrical body 10 is stretched between the seat plate 11 shown in FIG. It is urged forward by a first elastic member 12 made of a spring or the like. 13 is the shaft cylinder 2
The operating knob 13 has a leg 15 slidably fitted into a vertically elongated hole 14 bored in the cylindrical body 10, and the leg 15 is connected to the cylindrical body 10. It is designed so that it can be retreated integrally with the cylindrical body 10 by a distance until its end abuts the rear end of the hole 14. 1
As shown in FIG. 3, 6 has a circular engagement part 17 in the center that is slightly larger than the outer shape of the push rod 9, and has a second elastic member 20, which will be described later, on the rear end surface.
It has an inclined receiving seat that can support the second elastic member in an inclined state by supporting one end of the elastic member with the protrusion 18 or the like. The engagement member 16 is a disc-shaped engagement member.
is fitted onto the press rod 9 at the rear of the cylinder 10, and is urged forward by a second resilient member 20, such as a spring, stretched between the cylinder and the inner stage 19 of the shaft cylinder 2. , with its upper part abutting the rear protrusion 21 of the seat plate 11 and tilted slightly backward, that is, with the upper and lower positions of the engaging part 17 pressed against the press rod 9.

The above-mentioned engaging member 16 is not limited to the one illustrated in FIG. 3, but may be a rectangular plate-like member having an engaging portion 17 formed of a U-shaped notch in the center as shown in FIG. 4. Also, the cross-sectional shape of the push rod 9 that comes into pressure contact with the engaging portion of the engaging member 16 does not necessarily have to be circular, but may have an appropriate shape on its outer surface that makes the engagement with the engaging portion 14 better. A groove may be provided.

(Function) Hereinafter, the fluid supply operation of the above-mentioned embodiment will be explained as follows.
This will be explained with reference to FIGS.

When the operating knob 13 is pushed backward by a fingertip or the like, the engagement member 16 is pushed rearward by the rear end surface of the cylindrical body 10 connected to the operating knob 13. The posture of the engaging member 16 in the inclined state is corrected by this pressing, and the pressing of the engaging portion 17 against the press rod 9 is released. will retreat together with the cylinder 10 without taking the press rod 9 with it (see Fig. 5).

When the fingertip is released from the operating knob 13 in the state shown in FIG. is supported by the protruding portion 18, so that it immediately returns to its original inclined state, that is, the state in which the vertical position of the engaging portion 17 is pressed against and engaged with the press rod 9. Therefore, the press rod 9 Together with the engaging member 16, the engaging member 16 moves forward by a predetermined amount until its upper part abuts the rear rear protrusion 21 of the seat plate 11, and the piston 8 at the front pumps the fluid stored in the fluid storage chamber 7. It can be supplied to the outlet 1 (see FIG. 6).

In this way, it becomes possible to sequentially supply fluid to the outflow portion 1 simply by pressing and retracting the operation knob 13.

(Effects of the invention) As described above, in the present invention, a piston is slidably provided in the fluid storage chamber in the barrel which communicates with the outflow portion provided at the front end of the barrel, and a push rod is connected to the piston. ,
A cylindrical body that can be slidably interlocked with an operation knob that is slidably provided in a hole in the barrel is slidably fitted onto the press rod, and is biased forward by a first elastic member, and the cylindrical body is An engaging member having an engaging portion located at the rear and capable of engaging with the push rod and having an inclined receiving seat on the rear end face is fitted and inserted, and the second
The elastic member is biased forward and the upper part is placed in contact with a protrusion located inside the barrel, so it is extremely easy to press the operating knob provided on the barrel with your fingertips. It is possible to provide a fluid supply tool that can reliably supply high viscosity liquids and powders for cosmetics, writing, etc. stored in the barrel to the outflow portion by simple operations.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view, FIG. 2 is an external perspective view showing the seat plate in FIG. 1, and FIG. 3 is an external appearance showing the engaging member in FIG. 1. FIG. 4 is an external perspective view showing a modified example of the engagement member, and FIGS. 5 and 6 are operation explanatory views. DESCRIPTION OF SYMBOLS 1... Outflow part, 2... Shaft tube, 7... Fluid storage chamber, 8... Piston, 9... Push rod, 10... Cylindrical body, 12... First elastic member, 13... Operation Knob, 14... Hole, 16... Engaging member, 17... Engaging portion, 20... Second elastic member, 21... Projecting portion.

Claims (1)

[Scope of utility model registration request] A piston is slidably provided in a fluid storage chamber in the barrel that communicates with the outflow portion provided at the front end of the barrel, a push rod is connected to the piston, and the push rod is inserted into the hole in the barrel. A cylindrical body that can be interlocked with a freely movable operating knob is slidably fitted onto the outside and biased forward by a first elastic member, and the cylindrical body is located at the rear of the cylindrical body and can be engaged with a push rod. An engaging member having an engaging portion and an inclined receiving seat on the rear end surface is inserted and urged forward by a second elastic member so that its upper portion abuts a protrusion located within the shaft cylinder. A fluid supply device arranged at least.