JPH0532225Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This case concerns a liquid ejector.

"Problems to be Solved by Prior Art and Ideas" As a liquid injector of this kind, for example, as shown in the injector, a cylinder 31 is vertically disposed from a mounting tube 30 for screwing the opening and neck of the container body, and A coil spring 37 biases an actuating member 36 formed of a cylindrical piston 32 fitted into the inner surface of the cylinder, a stem 33 rising from the cylindrical piston, and a head 35 with a nozzle 34 attached to the upper end of the stem. and the upper outer surface of the actuating member 36,
By screwing the actuating member 36 into the female screw tube 38 fitted to the upper part of the cylinder 31, the operating member 36 is held in a depressed state to prevent erroneous operation during transportation and to prevent the head 35 from getting in the way. What he did is widely known.

However, in the above conventional example, no measures have been taken to maintain the screwed state between the actuating member 36 and the female threaded tube 38;
The screws may loosen due to vibrations during transportation.

In the present invention, a bent wall portion is erected from the outer peripheral edge of the engagement plate portion having a C-shape in plan, and a lock member is provided in which an engaging means for engaging the outer surface of the head is protruded from the upper end of the bent wall portion, and the upper end of the cylinder Stand up the mounting cylinder part from the mounting cylinder part, provide a downward step part around the outer peripheral surface of the cylinder fitted on the outer surface of the mounting cylinder part, and when the head is pressed down, attach the upper surface of the engagement plate part to the lower surface of the downward step part. and a part of the outer surface of the head are engaged with the engaging means, respectively, so that the head can be reliably held in a depressed state and the lock member can be easily attached.

"Means for Solving the Problems" A cylinder is suspended from the upper end of a mounting cylinder for fitting to the mouth and neck of a container, a cylindrical piston fitted to the inner surface of the cylinder, and a stem rising from the cylindrical piston,
In a liquid injector in which an actuating member formed by a head with a nozzle attached to the upper end of the stem is urged upward by a coil spring, the cylinder 2
The mounting cylinder part 9 is erected from the upper end, and a cylinder body 10 having a downwardly facing stepped part 14 is fitted onto the outer surface of the mounting cylinder part.
A locking member 20 is provided which has a bent wall 22 erected from the outer periphery of the head 7 and an engagement means for engaging with the outer surface of the head 7 protruding inwardly from the upper end of the bent wall. The upper surface of the engagement plate section 21 is engaged with the lower surface of the stepped section 14, and the above-mentioned engagement means is engaged with a part of the outer surface of the head 7, respectively.

"Operation" In the state shown in FIG. 1a, the downward step part 1 of the cylinder 10
The engagement plate part 21 of the lock member 20 is engaged with the lower surface of the head 4, and the top plate 2 of the lock member 20 is engaged with the upper surface of the head 7.
Since the lower surfaces of the head 7 are engaged with each other, the lock member 20 prevents the head 7 from being screwed upward. When the locking member 20 is pulled back from this state, the head 7 is raised by the bias of the coil spring, and by moving the head 7 up and down, the liquid stored in the container can be spouted from the nozzle 6. In the embodiments shown in FIGS. 2 and 3, the head 7 is similarly held in the depressed state by the locking member 20.

"Embodiments" First embodiment (FIGS. 1a and 1b) First, a conventionally known structure will be briefly described.

1 is a container body, 2 is a cylinder having a suction valve at the bottom, 3 is a mounting tube that fixes the cylinder 2 in a vertically suspended state inside the container, 4 is an actuation member, and the actuation member is:
It consists of a cylindrical piston (not shown) fitted into the inner surface of the cylinder 2, a stem 5 standing up from the cylindrical piston, and a head 7 with a nozzle 6 attached to the upper end of the stem. It is energized to 8 is a lid with a knob that closes the front end opening of the nozzle 6.

In the first embodiment, the mounting cylinder part 9 is erected from the upper end of the cylinder 2, and the cylinder body 10 is attached to the outer surface of the mounting cylinder part.
is fitted. The cylindrical body has an inner circumferential wall 12 hanging from the upper end of the outer circumferential wall 11 into which the mounting tube part is fitted into the upper part of the cylinder 2 via an inward flange, and an outer flange attached to the upper end of the outer circumferential wall 11. A short cylindrical portion 13 is provided vertically from the periphery, and a downward step portion 14 is formed at the lower end surface of the short cylindrical portion.

Reference numeral 20 denotes a locking member, which has a bent wall 22 erected from the outer peripheral edge of the C-shaped engagement plate 21 in plan view, and from the upper end of the bent wall.
A top plate 23 is provided to protrude inward as a means for engaging the outer surface of the head 7, and when the head 7 is pressed down as shown in FIG.
4 the upper surface of the engagement plate part 21 on the lower surface, and the head 7
The lower surface of the top plate 23 is engaged with the upper surface to prevent the head 7 from rising.

Second Embodiment (Fig. 2 a, b, c) In this embodiment, each member except the lock member 20 has the same structure as the previously described first embodiment, and the lock member 2
0 has a bent wall portion 22 standing up from the outer peripheral edge of the engagement plate portion 21 having a C-shape in plan, and a covering plate portion 2 having a bottom opening from the peripheral edge of a through hole 24 bored in the front portion of the bent wall portion.
5 protrudes forward to house the nozzle 6 in the covering plywood section, and from the upper end of the bent wall section 22,
A top plate 23 is provided to protrude inwardly and rearward as a means for engaging the outer surface of the head 7.
3 is engaged with the upper surface of the head 7, and the engagement plate portion 21 is engaged with the lower surface of the downward step 14 of the cylindrical body 10, thereby preventing the head 7 from rising.

Third Embodiment (FIGS. 3a and 3b) This embodiment has the same structure as the first embodiment described above except for the head 7, the cylinder 10 and the locking member 20. Engagement recess 7
a is formed in the circumferential direction. Moreover, the cylinder 10 is
From the intermediate lower surface and inner peripheral edge of the inward flange attached to the upper end of the outer peripheral wall 11 to the intermediate wall 15 and the inner peripheral wall 1
2 are installed vertically to form an intermediate wall 15 and an inner peripheral wall 1.
2 are respectively fitted to the outer and inner surfaces of the mounting tube portion 9 that stands up from the upper end of the cylinder 2, and a protrusion 16 is provided around the upper end of the outer surface of the outer peripheral wall 11, and a downward step is formed on the lower surface of the protrusion. 14 is formed. Further, the locking member 20 has a C-shaped engagement plate portion 2 in plan view.
1, a bent wall 22 is erected from the outer peripheral edge of the head 7, and an engaging protrusion 26 is provided to protrude inward from the upper end of the bent wall as a means for engaging the outer surface of the head 7. With the head 7 pressed down as shown, the engagement plate portion 21 is engaged with the lower surface of the downward step 14 and the engagement protrusion 26 is engaged with the engagement recess 7a to raise the head 7. It is designed to prevent

It should be noted that each member in each of the above embodiments is molded from a synthetic resin material except for the coil spring.

"Effects of the Invention" The present invention has the above-mentioned configuration, and the curved wall portion 22 stands up from the outer periphery of the flat C-shaped engagement plate portion 21, and the head 7 extends inward from the upper end of the curved wall portion.
A lock member 20 is provided with an engagement means for engaging with the outer surface. The mounting cylinder 9 is raised from the upper end of the cylinder 2, and a downward step 14 is provided on the outer peripheral surface of the mounting cylinder.
When the head is pressed down, the upper surface of the engagement plate portion 21 engages with the lower surface of the downward step portion 14, and the engagement means engages with a portion of the outer surface of the head 7. This ensures that the head 7 is held in a pressed-down state by the lock member 20, and the head 7 can be distributed in a pressed-down state, so that the container with the ejector of this invention is compact and not bulky, which is convenient for transportation, etc.

[Brief explanation of the drawing]

Figures 1a and 1b show a first embodiment of the liquid ejector of the present invention, in which figure a is a partially cutaway side view, figure b is a perspective view of the locking member, and figure 2a, b, and c are Second
FIG. 3A is a partially cutaway side view, FIG. B is a bottom view of the lock member, FIG. C is a perspective view thereof, and FIGS. 3A and 3B are a third embodiment. The figure is a partially cutaway side view, figure b is a perspective view of the locking member, and figure 4 is a half sectional view of a conventional injector. 10... Cylindrical body, 20... Lock member.

Claims (1)

[Scope of utility model registration request] A cylinder is suspended from the upper end of a mounting cylinder for fitting to the mouth and neck of the container, a cylindrical piston fitted to the inner surface of the cylinder, and a stem rising from the cylindrical piston;
In a liquid injector in which an actuating member formed by a head with a nozzle attached to the upper end of the stem is urged upward by a coil spring, the cylinder 2
The mounting cylinder part 9 is erected from the upper end, and a cylinder body 10 having a downwardly facing stepped part 14 is fitted onto the outer surface of the mounting cylinder part.
A locking member 20 is provided which has a bent wall 22 erected from the outer periphery of the head 7 and an engagement means for engaging with the outer surface of the head 7 protruding inwardly from the upper end of the bent wall. A liquid ejector characterized in that the upper surface of the engagement plate section 21 is engaged with the lower surface of the stepped section 14, and the above-mentioned engagement means is engaged with a part of the outer surface of the head 7.