JPH04297364A - Vessel provided with cap - Google Patents

Abstract

PURPOSE:To set a cap on a vessel body very easily as well as to manufacture it so simply without using any complex manufacturing mold. CONSTITUTION:This reservoir tank 1 is provided with a vessel body 2 capable of storing a liquid via an opening 4 and a cap 3 being detachably attached to the vessel body 2 and closing the opening 4 at time of attachment. At time of attaching the cap 3, a pair of projections 22 formed on an inner surface of the cap 3 is engaged with each upper edge of respective projecting strips 23 formed on an inner circumferential surface of the opening 4 over the specified angular range. An incline 24 tilting from an upper edge to a lower one of each guide projecting strips 23 makes each projection 22 move to a lower edge of another guide projecting strip 23 adjoined with turning operation of the cap 3 within one rotation. A stopper 25 is formed in an end of another guide projecting strip 23 adjoined, and thereby it is engaged with each projection 22 moved along the incline 24, thus the movement and flotage are checked.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container equipped with a cap capable of containing liquid such as oil.

0002

[Prior Art] Conventionally, for example, in a reservoir for storing brake oil for a vehicle, a male thread is formed on the outer periphery of the upper opening of the reservoir body, and a female thread is formed on the inner periphery of the cap, and both threads are screwed together. The cap is removably attached to the reservoir body.

0003

Therefore, in order to attach the cap to the reservoir body, it is necessary to rotate the cap over one rotation or more while changing the gripping position, which is troublesome. Furthermore, since it is necessary to mold the screws on the reservoir body and the cap, there is also the problem that the structure of the mold becomes complicated, especially when the cap is made of synthetic resin.

The present invention has been made to solve the above-mentioned problems, and its purpose is to make it extremely easy to attach and detach the cap to the container body, and to
To provide a container equipped with a cap that can be easily manufactured without using a complicated manufacturing mold.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a container body having an opening and capable of containing liquid through the opening, and a container body detachably attached to the container body, and a cap that closes the opening when the cap is attached, wherein at least a pair of protrusions that protrude in the axial direction concentrically at a predetermined angular interval on the inner surface of the cap and that can be inserted into the opening. a guide protrusion formed over a predetermined angular range in the circumferential direction on the inner peripheral surface of the opening so as to correspond to each of the protrusions; and when the cap is attached to the opening, each guide protrusion Each of the protrusions is engageable with the upper edge, and is formed at the end of each guide protrusion and is inclined from the upper edge to the lower edge of each guide protrusion along the circumferential direction. The inclined surface and each inclined surface move each protrusion toward the lower edge of another adjacent guide protrusion according to engagement with each of the protrusions as the cap is rotated within one rotation. , a stopper formed at the end of the adjacent guide protrusion and capable of engaging with each protrusion moved along the inclined surface to prevent the protrusion from moving and floating.

[0006]

[Operation] When each protrusion is engaged with the upper edge of the guide protrusion, if the cap is rotated by one rotation or less without changing the gripping position, each protrusion will be rotated by the inclined surface of the guide protrusion. It is guided from the upper edge to the lower edge of another adjacent guide protrusion. Then, the stopper and each protrusion engage with each other, thereby preventing the cap from moving. Therefore, the cap can be attached to the container body very easily.

Furthermore, when removing the cap, if the cap is rotated in a direction opposite to the direction in which the cap is attached, each protrusion rises along the inclined surface, and the entire cap is lifted up. Furthermore, the protrusion is formed of a flexible synthetic resin material, and a protrusion that increases movement resistance when the protrusion moves is formed on a movement path of the protrusion between the inclined surface and the stopper. is desirable. Since the movement resistance increases before the protrusion engages with the stopper, the feeling of moderation when putting on the cap improves, and it becomes easy to recognize whether the cap is securely put on or not.

[0008]

[Example] An example in which the present invention is embodied in a reservoir tank for brake oil of a vehicle will be described below in Figures 1 to 3.
This will be explained in detail based on the following. As shown in FIG. 1, a reservoir tank 1 as a container includes a container body 2 capable of containing brake oil and a cap 3 detachably attached to the container body 2.

An opening 4 is provided in the upper part of the container body 2, and the brake oil flows through the opening 4 into the container body 2.
contained within. A pair of connection parts 5 are provided at the bottom of the container body 2.
a, 5b are formed, and the contained brake oil is supplied to the master cylinder via these connecting portions 5a, 5b. As shown in FIG. 2, a flexible synthetic resin deflector 7 is attached to the inner top surface 6 of the cap 3 via its upper flange 7a. An annular groove 8 is provided on the outer periphery of the central portion of the deflector 7, and a rubber seal 9 is provided in the annular groove 8 to improve the sealing performance between the cap 3 and the container body 2.
is fitted. A plate 10 that protrudes in the axial direction of the deflector 7 is formed at the center of the lower part of the deflector 7, thereby suppressing wave motion in the liquid surface.

As shown in FIG. 2, a diaphragm 11 is disposed in the space formed by the deflector 7 and the inner top surface 6 of the cap 3, and the space is divided by the diaphragm 11 into a chamber R1 and a chamber R2. There is. Further, the liquid storage area 12 and the chamber R1 communicate with each other through a ventilation hole 13 formed at the lower part of the deflector 7, and the external area of the reservoir tank 1 and the chamber R2 communicate with each other through a ventilation groove 14 on the surface of the flange 7a of the deflector 7. It communicates with a hole 14a penetrating the peripheral wall of.

A pair of locking portions 15 having a planar arch shape are formed on the diaphragm 11 on concentric circles at a predetermined interval. The locking portions 15 are respectively engaged with arcuate protrusions 16 provided on the inner top surface 6 of the cap 3. A plurality of lower protrusions 17 are formed at regular intervals on the lower surface of the locking portion 15, and these lower protrusions 17 are arranged to face the deflector 7. Further, the outer peripheral portion of the diaphragm 11 is supported by a stepped portion 18 of the deflector 7. A pair of arcuate protrusions 19 formed concentrically on the upper surface of the diaphragm 11 are abutting portions 20 on the inner top surface of the cap 3.
is placed opposite. A slit valve 21 is formed in the center of the diaphragm 11. This slit valve 21 is normally closed, but when the pressure in the liquid storage area 12 changes to positive or negative pressure, the slit valve 21 is opened and the chambers R1 and R2 are communicated with each other. At this time, the liquid storage area 12 and the external area are communicated through the ventilation hole 13, the slit valve 21, and the ventilation groove 14, and the increase or decrease in pressure in the liquid storage area 12 is eliminated.

Further, a pair of flexible protrusions 22 having a substantially L-shape are integrally formed at the lower part of the deflector 7. Each protrusion 22 can be inserted into the opening 4 and protrudes in the axial direction at predetermined angular intervals on a concentric circle. On the other hand, as shown in FIG. 3, a pair of guide protrusions 23 extending in the circumferential direction over a predetermined angular range are integrally formed on the inner peripheral surface of the opening 4 so as to correspond to each protrusion 22. is attached to opening 4,
Each protrusion 22 can be engaged with the upper edge of each guide protrusion 23, respectively. An inclined surface 2 is provided at the end of each guide protrusion 23.
4 is formed, and the inclined surface 24 thereof is inclined along the circumferential direction from the upper edge of the intermediate portion of each guide protrusion 23 toward the lower edge of the clockwise end. A stopper 25 consisting of a stopper 25a and a stopper 25b is formed at the lower edge of the end of another adjacent guide protrusion 23, and the stopper 25 includes a stopper 25a and a stopper 25b.
4 and the stopper 25, there is a protrusion 2 on the moving path of the protrusion 22 that increases movement resistance when the protrusion 22 moves.
6 are integrally formed. In addition, the retaining portion 25
An inclined guide surface 25c that faces the inclined surface 24 and extends substantially parallel to the inclined surface 24 is formed on the lower edge of a.

Now, in order to attach the cap 3 to the container body 2, each protrusion 22 of the cap 3 is engaged with the upper edge of the guide protrusion 23, and the cap 3 is held on the watch without changing the gripping position. Rotate in the direction. Then, each protrusion 2
2 is guided by the inclined surface 24 and the inclined guide surface 25c and moves from the upper edge to the lower edge of the guide protrusion 23,
It is guided by the lower edge of another adjacent guide protrusion 23. If the rotational operation is continued further, when each protrusion 22 overcomes the protrusion 26 on its movement path, the movement resistance of the cap 3 increases, giving the user a sense of moderation. And about 90
When the rotation operation is performed, each protrusion 22 is rotated by the stopper 25.
The cap 3 comes into contact with the rotation stopper 25b, and the clockwise rotation of the cap 3 is prevented. At this time, each protrusion 22 is placed below the retaining portion 25a, and the cap 3 is prevented from coming off.

As described above, according to the structure of the reservoir tank 1 of the present embodiment, there is no need to rotate the cap 3 while changing its grip position over one rotation or more when attaching the cap 3, as in the conventional case. Cap 3 can be attached. Furthermore, when removing the cap 3 from the container body 2, by rotating the cap 3 counterclockwise, each protrusion 22 is quickly moved from the lower edge to the upper edge of the guide protrusion 23 by the inclined surface 24 and the inclined guide surface 25c. You will be guided. Therefore, there is an advantage that the amount of rise of the cap 3 is greater than the amount of rotation operation of the cap 3 than in the conventional structure, and the removal of the cap 3 is extremely easy. Furthermore, with the structure of the reservoir tank 1 as in this embodiment, there is no need to form fine threads on the container body 2 or the cap 3. Therefore, a complicated manufacturing mold is not required especially when manufacturing the synthetic resin cap 3, and the container body 2 and the cap 3 can be manufactured more easily than before.

Furthermore, in the reservoir tank 1 of this embodiment, the flexible protrusion 22 and the protrusion 26 formed on its movement path are combined to increase the movement resistance when the protrusion 22 moves. . With this combination, the sense of moderation when wearing the cap 3 is improved, and the user can easily recognize whether or not the cap 3 is securely engaged.

It should be noted that the present invention is not limited to the structure of the above-mentioned embodiment, and the number of protrusions 22 and the corresponding guide protrusions 23 may be increased to three or four without departing from the spirit of the invention. It is possible to change it with . Furthermore, the present invention can be embodied as a container for storing liquids such as containers for edible oil, seasonings, etc., and polyethylene tanks for storing petroleum or kerosene.

[0017]

Effects of the Invention As described in detail above, according to the container equipped with the cap of the present invention, the cap can be attached and detached from the container body very easily, and also without using a complicated manufacturing mold. It has an excellent effect in that it can be manufactured.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a reservoir tank in one embodiment.

FIG. 2 is an enlarged sectional view showing an engaging portion between a reservoir tank and a cap.

FIG. 3 is a partially enlarged sectional view showing the opening of the reservoir tank.

[Explanation of symbols]

1. Reservoir tank as a container, 2. Container body,
3 Cap, 4 Opening, 22 Projection, 23
(Guide) Projection, 24 Inclined surface, 25 Stopper.

Claims (2)

[Claims] 1. A container body (2) having an opening (4) and capable of containing a liquid through the opening (4);
2), and the opening (4) is removably attached to the opening (4) when attached.
), the openings (4) are provided concentrically on the inner surface of the cap (3) and protrude in the axial direction at predetermined angular intervals.
at least one pair of protrusions (22) that can be inserted into the opening; and a guide protrusion formed over a predetermined angular range in the circumferential direction on the inner peripheral surface of the opening (4) so as to correspond to each of the protrusions (22). When the strip (23) and the cap (3) are attached to the opening (4), each of the protrusions (22) is capable of engaging with the upper edge of each guide protrusion (23); An inclined surface (24) formed at the end of each guide protrusion (23) and inclined from the upper edge to the lower edge of each guide protrusion (23) along the circumferential direction; 2
4) is a lower edge of another guide protrusion (23) adjacent to each protrusion (22) according to the engagement with each protrusion (22) as the cap (3) is rotated within one rotation. and engaging with and moving each protrusion (22) formed at the end of the adjacent another guide protrusion (23) and moved along the inclined surface (24). and a stopper (25) capable of preventing floating. 2. The protrusion (22) is formed of a flexible synthetic resin material, and on the movement path of the protrusion (22) between the inclined surface (24) and the stopper (25), 2. A container with a cap according to claim 1, wherein a protrusion (26) is formed which increases the movement resistance when the protrusion (22) moves.