JPH0454937Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" The present invention relates to a lid plate pivotally attached to a cap body, etc., and more specifically, the synthetic resin lid plate closes and opens with respect to the synthetic resin main member. The present invention relates to a lid plate pivotally attached to a cap body or the like and configured to be effectively held in the same position.

``Problems to be solved by conventional techniques and ideas'' Conventionally, this type of lid plate consists of a synthetic resin main member such as a cap body or a container body, and a synthetic resin lid plate pivotally attached to the main member. A notch is formed in one of the members, and a protrusion that fits into the notch is attached to the other member, and a pin protruding from the end face of the notch or the protrusion is attached to the protrusion. Alternatively, there is one in which the cover plate is rotatably pivotally attached to the main member by fitting into a hole drilled in the end face of the notch.

In the conventional type, in order to maintain the open state,
Although springs are used, the work of installing the springs is time-consuming, and the presence of the springs themselves increases the number of parts, leading to an increase in manufacturing costs.

Also, when elastically engaging the engaging piece provided on the front part of the lid plate with the engaging element protruding from the main member side, if there is shrinkage during molding, for example, if the vertical length of the engaging piece is The size may shrink and the engagement between the two may become difficult.

A bottle lid that takes these points into account has been proposed (Utility Model Publication No. 34614, 1983).

This bottle lid has a synthetic resin stopper with a hole.
A door for opening and closing the hole is pivoted, an arcuate portion is formed at the base end of the door, and a recess is formed in the arcuate portion;
The stopper is provided with a protrusion that presses against the arcuate portion and fits into the recess when the door is opened and closed. This bottle lid does not require a spring, and
Since it is not necessary to lock the lid with the engaging piece and the engaging element, the above-mentioned inconvenience does not occur, but the structure is complicated as described above, and the height of the protrusion and the depth of the recess require precision, making it difficult to manufacture. This is accompanied by complications.

In addition, since a concave portion is formed in the arc-shaped portion formed at the base end of the door, and a protrusion is provided on the plug body that presses and fits the arc-shaped portion into the concave portion, it is possible to maintain the open state of the door. This method relies solely on the frictional force on the tip of the protrusion, so if there is an error in the molding of the arcuate part or protrusion, or if that part is worn out due to long-term use, the lid may wobble when opened. Otherwise, there is a drawback that it is not possible to maintain a good open state, such as when the lid closes.

The present invention eliminates the drawbacks of the above-mentioned conventional technology.
The lid plate is pivotally attached to the cap body, which has an extremely simple structure, does not reduce its functionality even if there is a slight dimensional error, and can maintain the lid in the open and closed states reliably. The purpose is to make suggestions.

"Means for solving the problem" The present applicant has proposed a cap for liquid pouring containers, etc., taking these points into consideration (Utility Model Application No. 60-188156).
Issue: Published December 13, 1985).

This cap has an extremely simple structure in which a small protrusion is provided on the outer surface of the shaft of the pivot joint and a small recess is provided on the inner circumferential wall of the shaft hole, and the above-mentioned drawbacks can be overcome. However, it is an excellent product that does not impair the slidability with the shaft hole or the fitability with the small recess, and does not cause any deterioration of its function.

The present invention was developed from the viewpoint that the same effects as the above-mentioned invention can be obtained by forming horizontal protrusions and horizontal grooves on the end faces of the pivot portion.

That is, the present invention forms a notch 3 in one of a main member 1 made of synthetic resin, such as a cap body, and a cover plate 2 made of synthetic resin pivotally attached to the main member, and A protrusion 4 that fits into the notch is attached to the member, and a hole 6 is formed in the end face of the protrusion or notch with pins 5 protruding from the end face of the notch or the protrusion. , 6, the lid plate is pivotally attached to the main member so as to be rotatable, and has a horizontal groove 7 on one end face of the notch or protrusion, and a horizontal groove 7 on the other end face. A horizontal protrusion 8 that fits into the concave groove is attached, and when the cover plate covers the top surface of the main member or is rotated 180 degrees, the protrusion 8 fits into the concave groove 7, and the pin The gist of the present invention is a cover plate characterized in that a protrusion 8 is formed so as to be able to ride on an end surface having a groove by rotating the cover plate 2 about the center.

"Operation" When the cover plate 2 connected to the main member 1 by the pin 5 is rotated in the direction of the arrow from the state shown in FIG. 3 to cover the upper surface of the main member as shown in FIG. The protrusion 8 fits into the groove 7. As a result, the lid plate 2 is not rotated in the opening direction with a small amount of force, and is ultimately held in this state. That is, it is maintained in a closed state.

Also, from the state shown in Fig. 2, remove the cover plate 2 with a slightly strong force.
When rotated in the opening direction, the protrusion 8 rides on the end face having the groove 7 and then fits into the groove 7 again, ensuring that the open state as shown in FIG. 3 is maintained. I can do it.

Further, if the rotation angle of the cover plate 2 is made smaller than 180°, it is possible to hold the cover plate 2 in the open state at a desired position due to the friction between each protrusion and the end face having the groove.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of the present invention, in which 1 represents the main member and 2 represents the cover plate.

The main member 1 has a spout 9 for pouring liquid, etc. opened on its upper surface, and also has a recess formed across the rear end of the top wall, and a horizontal cylindrical protrusion 4 protruding from the center of the recess. There is. Furthermore, grooves 7, 7 running horizontally in the front and rear are bored in the center of both sides of the protrusion 4 in the vertical direction, and cylindrical holes 6, 6 are formed in the center of each groove. It is set up.

The cover plate 2 has a peripheral wall hanging from the peripheral edge of the disc-shaped top wall, a rear part of the peripheral wall is formed thickly, the protrusion 4 can be fitted into the thick part, and both end faces have circular cuts. Notch 3 is drilled. Furthermore, protrusions 8, 8 which can be fitted into the respective grooves 7, 7 and run horizontally from front to back are protruded from the center portions of both end faces of the notch 3 in the vertical direction. 8, 8 have cylindrical pins 5, 5 rotatably fitted in the respective holes 6, 6 at the center thereof.
stands out. Further, a plug body 10 is provided on the back surface of the top wall to protrude and fit into the spout 9 in a detachable manner.

The cover plate 2 configured as described above is rotatably mounted on the main member 1 by fitting each pin 5, 5 into each hole 6, 6 of the main member 1, and the cover plate 2 is rotatably mounted on the main member 1. 1. Each protrusion 8, 8 is attached to the main member 1 while covering the upper surface.
It is fitted into each of the concave grooves 7, 7 and installed.
Furthermore, when the cover plate 2 is rotated 180 degrees, the protrusions 8, 8 ride on the end surfaces having the respective grooves 7, 7, and then fit into the respective grooves 7, 7 again, as shown in FIG. Lid body 2 as shown in
The structure is such that it can be stably supported when rotated by 180 degrees.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and for example, as shown in FIG. 4, the notch 3 may be provided on the main member 1 side and the protrusion 4 may be provided on the cover plate 2 side. Similarly, a protrusion 8 may be provided on the end surface of the protrusion 4, and a groove may be provided on the end surface of the notch 3.

``Effects of the invention'' As explained above, the cap of the present invention has the above-described structure, and has an extremely simple structure without using springs, etc., so that the lid plate can be closed or rotated 180 degrees with respect to the main member. In addition, the lid plate can be held at any desired opening angle.

In addition, since each protrusion fits into the groove when the lid is closed or opened 180°, even if there is a slight dimensional error due to shrinkage during molding, the The lid state can be maintained reliably and is not affected by dimensional errors.

Furthermore, it has various effects such as cost reduction due to a reduction in the number of parts and smooth opening/closing operations due to improved ease of assembly.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing one embodiment of the lid plate pivotally attached to the cap body etc. according to the present invention, FIGS. 2 and 3 are respective perspective views showing the operating state thereof,
FIG. 4 is a plan view showing another embodiment of the lid plate of the present invention. 1...Main member, 2...Lid plate, 7...Concave groove, 8...
...projection.

Claims (1)

[Scope of utility model registration request] A main member 1 made of synthetic resin, such as a cap body, and a cover plate 2 made of synthetic resin, which is pivotally attached to the main member, has a notch 3 formed in one member, and a cutout 3 formed in the other member. A protrusion 4 that fits in is attached, and pins 5, 5 protruding from the end face of the notch or protrusion are fitted into holes 6, 6 bored in the end face of the protrusion or notch. By doing so, in the cover plate rotatably attached to the main member, the horizontal groove 7 is fitted into one of the end surfaces of the notch or the protrusion, and the horizontal groove 7 is fitted into the groove on the other end surface. A state in which the horizontal protrusion 8 is attached and the cover plate covers the top surface of the main member or 180°
In the rotating state, the protrusion 8 fits into the groove 7, and
By rotating the cover plate 2 around the above-mentioned pin, the protrusion 8
1. A lid plate pivotally attached to a cap body, etc., characterized in that the lid plate is formed so as to be able to ride on an end face having a groove.