JPH0718610Y2 - Liquid ejector cover cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a cover cap for fixing an operating member of a liquid ejection device in a depressed state.

<Prior Art> As a conventional technology, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 59-123568. That is, in the liquid discharge container in which the operating member is pushed down, an outward flange is attached to the lower part of the mouth and neck of the container body, and the head with nozzle is covered with a cap, and the inner peripheral edge of the lower end of the cap peripheral wall is attached. It is characterized in that the circumferentially provided ridge is engaged with the lower edge of the outer peripheral portion of the outward flange.

<Problems to be Solved by the Invention> Since the cap is generally injection-molded and the ridge portion thereof is forcibly removed from the mold, the engagement surface of the ridge is curved and the cap is When mounted, the fitting force is not sufficient and there is a possibility that it may be inadvertently disengaged.

<Means for Solving Problems> The present invention has been made to solve the above problems, and a mounting cylinder equipped with a cylinder is mounted on the neck and neck of the container, and the cylinder is vertically suspended in the container. And a liquid discharge device provided so that the operating member having a head with a nozzle is erected upward from the inside of the cylinder and the operating member is moved up and down to suck the liquid in the container and discharge it from the nozzle. Has a through hole or a notch for projecting the nozzle outwardly in order to fix the operating member in a state of being pushed down, and projecting inwardly formed at the lower end thereof. In a cover cap of a liquid ejecting apparatus in which a plurality of projections are engaged with a lower end portion of the mounting cylinder, the projections have a substantially rectangular cross section and a peripheral wall above the projections corresponds to the projections. For molding It is a cover cap of a liquid ejection device, which is provided with a hole.

<Operation> Since the cover cap of the present invention has a horizontally elongated cross section of a substantially rectangular shape, it can be securely attached to the liquid ejection device.
Fixed.

<Embodiment> The present invention will be described in detail with reference to an embodiment of the drawings.

In the figure, (1) is a container, and the container (1) is located above the mouth and neck (2).
And an outward flange (3) is provided at the lower end of the mouth and neck (2). A cylinder (4) is vertically installed in the container (1). The cylinder (4) has an outward flange (5) attached to the outer circumference of the cylinder engaged with the top surface of the container opening through a packing (6), and a suction pipe (7) from the lower end of the cylinder (4). ) Is vertically installed with the lower end of the pipe close to the inner bottom of the container.

A suction valve is provided on the inner bottom of the cylinder (4), and the upper end of the cylinder projects above the outward flange (5). The upper end of the cylinder has a ring-shaped top wall ( A short pipe (11) having a shape in which inner and outer cylinders (9) and (10) are hung from both inner and outer peripheral edges of 8) has an inner cylinder on the inner surface of the cylinder upper end and an outer cylinder on the outer surface of the cylinder upper end, respectively. It is fitted and attached. An uneven fitting line is formed on the inner surface of the outer cylinder and the outer surface of the upper end of the cylinder to prevent the short pipe from being pulled out.
Is formed. However, the short pipe is not absolutely necessary,
A female thread may be formed directly on the inner surface of the upper end of the cylinder. The cylinder part (15) of the mounting cylinder (14) is screwed onto the outer surface of the neck of the container to prevent the cylinder from being pulled out, and the cylinder facing with the inward flange (16) attached to the upper end of the cylinder part. The outward flange (5) is held between the top surface of the container opening and the packing.

In the cylinder, a tubular piston portion of the actuating member (18) is vertically urged and fitted by a spring so as to be fitted, and a discharge pipe (19) is erected from the tubular piston portion. A head (21) with a nozzle (20) at the upper end of the discharge pipe
Is fixed.

A discharge valve is provided in the cylindrical piston portion, and when the actuating member is moved up and down, the liquid in the container is sucked into the cylinder, and the liquid that has entered the cylinder passes through the discharge valve and is discharged from the nozzle. It is provided so as to be discharged. A male screw (22) is formed at the lower end of the head with nozzle, and the male screw pushes down the operating member against the bias of the spring,
The internal thread (12) of the short tube inner cylinder is screwed. Instead of these screws, it is also possible to provide a concave line and a convex line and hold the operating member pressed state by fitting these. A mouth plug (23) is fitted to the tip of the nozzle.

The cover cap (24) is mounted while the operating member is pushed down. The cover cap (24) is formed by attaching three inward engaging projections (26) to the lower end of the dome-shaped peripheral wall (25), and the peripheral wall (25) located above the projection (26). 3 are provided with molding holes (27) for removing a molding die for molding the protrusions (26), and further, notches (28) are formed in the holes. Nozzles to nozzles (20)
Is projected outward.

As described above, the protrusion (26) engages with the lower surface of the outward flange when the outward flange (3) is provided at the lower end of the mouth-neck portion, or when the downward flange is not provided, the mounting cylinder. Engage with the lower end surface of the cylinder.

The projection (26) has a substantially oblong rectangular cross section in the inward direction, and the engaging surface thereof is horizontal, whereby the fitting force is strengthened.

The mold used to mold the above-mentioned protrusion is 2
It consists of two molds (31) (32), and these molds (31) (32) respectively have projection forming parts (33) (34) as shown in FIG.
And peripheral wall forming parts (35) and (36).

When both molds (31) (32) are combined, the projection molding part (second
A space corresponding to the upper portion of the peripheral wall and a portion corresponding to the protrusion is formed in the upper portion of the peripheral wall and the peripheral wall forming portion (see FIG. 2B).
(Corresponding to the -B cross section), as shown in FIG. 4, a space is formed along the outer shape of the peripheral wall.

Here, the mold (31) is released upward, but since a part of the protrusion molding portion (33) is located inside the peripheral wall, the cap of the present invention is A molding hole is formed in the peripheral wall above the protrusion.

In other words, since the cap of the present invention has the molding hole, it is not necessary to forcibly remove the protruding portion, so that the cross section of the protruding portion can be formed into a substantially rectangular shape.

<Effect of the device> If the cover cap of the present invention is attached to the liquid ejection device,
Since the actuating member can be fixed in a depressed state, the actuating member does not interfere during transportation and the liquid in the container body is not carelessly discharged.

Further, since the molding hole is formed above the peripheral wall at the position corresponding to the protrusion, the protrusion can be formed without being forced out. Therefore, it becomes possible to form a protrusion whose corners are rounded and rounded when it is forcibly removed to have a horizontally long cross-section and a substantially rectangular engaging surface. In addition, since the protrusion is not forced out, there is no limitation on the inward protrusion length, and the protrusion can be made longer than the conventional one. Therefore, the fitting force is strong, and it is possible to prevent the cap from being accidentally removed.

Further, since the cap of the present invention has the molding hole, less resin is required for molding, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is an explanatory sectional view showing a state in which the cover cap of the present invention is attached to a liquid ejecting apparatus, FIG. 2 is a perspective view of the cover cap of the present invention, and FIG.
FIG. 4 and FIG. 4 are cross-sectional explanatory views of a mold used for molding. (1) …… Container body, (4) …… Cylinder (14) …… Mounting cylinder, (18) …… Operating member (24) …… Cover cap (25) …… Peripheral wall, (26) …… Projection ( 27) …… Molding hole, (28) …… Notch (31) (32) …… Mold, (33) (34) …… Projection molding part (35) (36) …… Peripheral wall molding part

Claims (1)

[Scope of utility model registration request] 1. A mounting cylinder equipped with a cylinder is mounted on a neck portion of a container to vertically hang the cylinder in the container, and an operating member having a head with a nozzle is erected upward from the cylinder. In order to fix the liquid discharge device, which is provided so as to suck the liquid in the container by moving the operating member up and down and to discharge the liquid from the nozzle, in a state where the operating member is pushed down, a part of the peripheral wall thereof is A cover of a liquid ejecting apparatus having a through hole or a notch for projecting the nozzle outward, and a plurality of inwardly projecting projections formed at the lower end thereof engaged with the lower end portion of the mounting cylinder. In the cap, the protrusion has a substantially oblong rectangular cross section,
Further, the cover cap of the liquid ejection device, wherein a molding hole corresponding to the protrusion is provided on a peripheral wall above the protrusion.