JP2511646Y2 - Liquid ejector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a liquid ejector.

"Problems to be solved by conventional techniques and devices" A cylinder that hangs inside a container is attached by a mounting cylinder that is screwed into the mouth and neck of the container, and at the inner surface of the screw tube of the holding cylinder provided at the upper end of the cylinder An outer surface of a push-down head with a nozzle of an operation member that hangs an upper end portion of a discharge passage forming pipe portion of an operating member penetrating the screw pipe and hanging into the cylinder, A liquid ejector having a cap fitted thereto is known.

Conventionally, the cover cap is formed by forming a split groove for projecting the nozzle of the push-down head from the front lower end of the peripheral wall vertically extending from the outer peripheral edge of the top wall, and the nozzle is projected from the split groove. At the same time, the projection provided around the inner wall lower end of the peripheral wall is detachably fitted to and mounted on the lower surface of the holding cylinder.

However, since the conventional one has only one split groove, there is a disadvantage that it takes time to attach the cover cap, especially when assembling the container manually.
In addition, a member simply intended to prevent the rotation of the press-down head requires a large amount of molding material, so that there is a problem that the cost is increased.

It is an object of the present invention to provide a liquid ejector which eliminates the above-mentioned drawbacks of the prior art.

"Means for Solving the Problem" A cylinder 4 having a lower end suspended by a mounting cylinder 6 fitted to the neck of the container body 1 is mounted, and a screw of a holding cylinder 8 provided at the upper end of the cylinder is mounted. The upper end of the discharge passage forming pipe portion 15 of the actuating member 12 penetrating the screw pipe into the cylinder while penetrating upwardly into the cylinder and vertically movably suspended is screwed in the actuating member lowering state, and In a liquid ejector in which a pressing head 14 with a nozzle 13 is fitted on the upper end of the discharge passage forming pipe portion, a cylindrical strip having an open upper and lower surface is formed and a peripheral wall 20 is formed.
Four split grooves 21 for projecting nozzles are formed above the lower ends of the front and rear parts and below the left and right upper ends, respectively, and the peripheral wall is formed.
A cover cap 19 having engaging projections 22 projecting from the lower end and the upper end of the inner circumference 20 is provided from one of the split grooves 21 to the nozzle 13
And the engaging projection 22 located below is removably fitted into the gap between the lower end of the holding cylinder 8 and the upper end of the mounting cylinder 6 so that it can be detachably attached to the pressing head 14 and the outer periphery of the holding cylinder 8. It is fitted.

[Operation] The cover cap 19 allows the nozzle 13 to protrude from one of the four split grooves 21 and holds the peripheral wall 20 in the holding cylinder 8
After fitting on the outer peripheral surface of both the press head 14 and
The engaging projection 22 located below the inner surface is attached to the mounting cylinder 6 and the holding cylinder 8.
Since it can be mounted by fitting it into the gap between the and, it can be mounted at various positions, and as a result, the efficiency of container assembly work can be improved. The cover cap prevents rotation of the pressing head with respect to the holding cylinder and prevents the operating member from rising with respect to the cylinder.

"Embodiment" FIGS. 1 and 2 show an embodiment of the present invention.

In the figure, reference numeral 1 designates a container body, on the upper end surface of which a neck and neck portion 2 is mounted an outwardly facing flange 5 at the upper end portion of a cylinder 4 which is suspended in the container body through a packing 3.

A mounting tube 6 is screwed onto the outer surface of the mouth / neck portion, and an inward flange 7 at the upper end of the mounting tube holds the outward flange with the top surface of the container body via a packing 3. .

A holding cylinder 8 is fixed to the upper end of the cylinder, and a screw tube 9 of the holding cylinder having a thread on the inner surface is fitted to the inner surface of the cylinder. A peripheral wall fitted to the outer surface of the upper end of the cylinder is suspended from the outward flange 10 at the upper end of the screw tube, and the outer peripheral wall 11 is suspended from the outer periphery of the outward flange.

Reference numeral 12 denotes an operating member that sucks up liquid in the container through the cylinder by vertical movement with respect to the cylinder, and ejects the liquid from the nozzle 13, and discharges the discharge path forming pipe part 15 from the pressing head 14 that projects the nozzle 13 forward. It passes through the inside of the screw tube 9 and hangs in the cylinder. The actuating member is biased upward by a compression spring 16, but the upper part of the discharge passage forming pipe portion 15 is screwed into the screw tube 9 in a lowered state of the actuating member against the bias. 17 is a cylindrical piston, and 18 is a suction valve at the bottom of the cylinder.

A cover cap 19 is fitted on the outer surfaces of the pressing head 14 and the holding cylinder 8. This cover cap 19
As shown in the second drawing, it has a cylindrical shape with the upper and lower surfaces open, and four split grooves 21 for projecting nozzles are formed above the lower end of the front and rear portions of the peripheral wall 20 and below the upper left and right ends, respectively. Further, engaging projections 22 are provided around the lower end and the upper end of the inner circumference of the peripheral wall 20 except for the openings of the split grooves. In the cover cap 19 configured as described above, the nozzle 13 is projected from one of the split grooves 21, and the engaging projection 22 located below is held in the holding cylinder 8.
It is removably fitted into the gap between the lower end and the upper end of the mounting cylinder 6, and is detachably fitted to the pressing head 14 and the outer periphery of the holding cylinder 8.

 Note that all of the above members are preferably formed of a synthetic resin.

[Advantage of Invention] As described above, the liquid ejector of the present invention has the above-described configuration, so that the cover cap can be attached from either the upper or lower side, and the upper and lower sides can be attached from the front and the rear, respectively. It is easy and, as a result, the efficiency of the assembling work can be further improved.

Further, the cover cap requires less molding material as compared with the conventional product, and the cost can be reduced.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of an essential part,
FIG. 2 is a perspective view of an essential part showing a state before the cover cap is attached. 1 ... container body, 4 ... cylinder 6 ... mounting cylinder, 8 ... holding cylinder 14 ... press-down head, 19 ... cover cap

Claims (1)

(57) [Scope of utility model registration request] 1. A cylinder 4 having a lower end suspended by a mounting cylinder 6 fitted in a neck portion of a container body 1 is mounted on the inner surface of a screw tube 9 of a holding cylinder 8 provided at the upper end portion of the cylinder. , A discharge passage forming pipe portion 15 of the operating member 12 penetrating the screw pipe and vertically downwardly movably suspended in the cylinder.
A liquid ejector in which an upper end is screwed in a lowered state of an operating member, and a pressing head 14 with a nozzle 13 is fitted to the upper end of the discharge passage forming pipe, and the upper and lower surfaces are formed into a tubular shape and a peripheral wall is formed. Four split grooves 21 for nozzle projection are formed above the lower end of the front and rear of 20 and below the upper left and right ends, respectively.
In addition, the cover cap 19 having the engaging projections 22 projecting from the lower end and the upper end of the inner circumference of the peripheral wall 20 is provided with the engaging projections located at the lower side while projecting the nozzle 13 from one of the split grooves 21. Liquid jetting characterized in that the strip 22 is removably fitted into the gap between the lower end of the holding cylinder 8 and the upper end of the mounting cylinder 6 and is detachably fitted to the pressing head 14 and the outer periphery of the holding cylinder 8. vessel.