JPH0616183Y2 - Push button type gas cock - Google Patents

Description

[Detailed Description of the Invention] [Field of Application] The present invention relates to a push-button type gas cock. When the push button for opening operation and the push button for closing operation are in the open state, they are for opening operation. Only the push button is pushed in.On the contrary, when the cock is closed, both push buttons are returned to the initial position to determine whether the cock is open or closed. It makes it easier.

[Prior Art and Problems Thereof] A conventional gas cock is provided with an operation knob for rotating operation on an operation shaft of a closure, and the closure is opened and closed by rotating the operation knob within a range of 90 degrees.

However, recently, there is a demand for a push-button operation of the gas cock, and in order to realize this requirement, the gas cock using the above-mentioned closure can be opened and closed by the push-button operation. The configuration shown in the figure can be adopted.

In this structure, a rotary arm (22) is connected to the operation shaft (21) of the closure (2) housed in the cock body (1), and the rotary regions of both ends of the rotary arm (22) are connected. A push button that can be raised and lowered is provided corresponding to the above, and these push buttons are connected to both ends of the rotating arm (22).

One of the push buttons functions as a first push button (31) for opening operation, and the other functions as a second push button (32) for closing operation. Therefore, in the state of FIG. 6, the second push button (32) is pushed in with the cock closed and the other first push button (31) is in the protruding state. When the first push button (31) is pushed in, the cock opens, and the second push button (32) projects so that the first push button (31) is pushed in.

With this type of gas cock, the first and second push buttons (3
Although the gas cock can be opened and closed by selectively pushing 1) and (32), there is a problem that it is difficult to determine whether the gas cock is in the open state or the closed state.

The push-button type gas cock as described above is often used for a so-called box cock buried in a wall surface or a floor surface. In such an installed state, the gas cock is open or closed regardless of whether the gas cock is open or closed. One of the operation buttons is pushed in. Therefore, the appearances in these two states are different only in the positions of the operation buttons pushed in, and the difference in the two states cannot be clearly judged in appearance.

[Technical Problem] The present invention has the above-mentioned "first push button (3
In the type of gas cock in which the gas cock is opened by pushing 1) and the gas cock is closed by pushing the second push button (32) for closing operation, it is possible to see whether the gas cock is open or closed. In order to make it easier to judge, the first and second push buttons (31),
The technical issue is to make it possible to clearly distinguish the appearance state of (32).

[Technical Means] The technical means of the present invention taken in order to solve the above technical problem is "from the end of the cock body (1) to the operating shaft (21) of the closure (2)".
And the rotation arm (22) is connected to the end of the operation shaft (21), and the rotation range of the protrusions (23) and (24) provided at both ends of the rotation arm (22). First and second push buttons (31), (32) are arranged along the first and second push buttons (31), (32), and are fitted to the fixing member attached to the cock body (1). The movement direction of (32) and the movement loci of the protrusions (23), (24) are set substantially in the same direction so that the first and second push buttons (31), (32) are returned to their initial positions. These are urged separately by springs (40), (40), the first push button (31) is connected to one of the projecting pieces (23), and the first push button (31) is closed (2). ) Is provided with an engaging means for engaging the fixed member with a constant biasing force at the pushing position corresponding to the fully opened state, and the second push button (32) transmits only the pushing force corresponding to the closing operation. The other piece
I contacted (24) ”.

[Operation] The technical means of the present invention operates as follows.

When the closing member (2) is in the fully closed state, one of the protruding pieces (23) is in the first position.
The push button (31) is at the initial position side, and the first push button (31) connected to the push button (31) is also at the initial position. The other protrusion (24)
Is in a state of being pushed in for a certain stroke from the initial position of the second push button (32), and the return urging force acts on the second push button (32) and the second push button (32)
The second push button (32) is also in the initial state, since it and the protruding piece (24) only contact each other.

When the first push button (31) is pushed in from this state, the projecting piece (23) connected thereto is pushed in, the turning arm (22) is turned, and the closure (2) is fully opened. Become. Also closed (2)
When the first push button (31) is pushed in until the switch is fully opened, the engaging means provided on the push button (31) causes the fixing member (first
The push button (31) is engaged with a member that holds the push button (31) in a paired state with a constant biasing force. As a result, the first push button (3
The urging force of the spring (40) for urging 1) to the initial position side is received by the engaging portion, whereby the first push button (31)
Is held in the pushed state. Further, in this fully opened state, the other second push button (32) is returned to the initial position by the urging force of the corresponding spring (40).

Then, in order to return the gas cock to the fully closed state, the second push button (32) may be pushed in. Then, the first push button
The engagement between the engaging means (the engaging means provided in the first push button (31)) that has received the urging force of the spring (40) for urging the (31) in the initial direction and the fixing portion is the above-mentioned. It is forcibly released by the pushing force of the push button (32). As a result, the urging force of the spring (40) for urging the first push button (31) in the initial direction is entirely applied to the first push button (31). Then, since the first push button (31) is connected to the closing member (2) via the rotating arm (22), a spring (which biases the first push button (31) in the initial direction ( The urging force of 40) is the first push button (31) →
The rotating arm (22)-> the closing member (2) acts to give a force to the closing member (2) to rotate it in the closing direction.

As a result, the urging force of the spring (40) for urging the first push button (31) in the initial direction and the pushing force of the second push button (32) act on the closure (2), and the force of both of these acts. The closing member (2) is closed and rotated.

After that, when the pushing force of the second push button (32) is released, the second push button is returned to the initial position by the restoring biasing force applied thereto.

After that, the gas cock can be opened and closed by repeating the above operation.

[Effects] The present invention having the above-described configuration has the following unique effects.

When the gas cock is closed, the first and second push buttons (3
Both 1) and (32) are returned to the initial position, and in the opened state, only the first push button (31) is pushed in, so the first push button (31) is pushed in. Whether or not the gas cock is in the open state or in the closed state can be clearly determined by appearance, and thus the open / closed state of the gas cock can be easily visually identified. Therefore, forgetting to tighten the gas cock and erroneous operation can be prevented.

When the gas cock is closed, the urging force of the spring (40) for urging the first push button (31) in the initial direction acts on it as a force for closing and rotating the closing member (2). Push button (3
2) The operating force for operating can be reduced. Further, the spring (40) (the spring corresponding to the first push button (31) to the extent that it can prevent the first push button (31) from automatically moving in the initial direction when the engaging means is disengaged. It is suitable to increase the urging force of the spring (40), but when the urging force of the spring (40) is increased to such an extent, it acts on the second push button (32). There is an advantage that the closing operation force required is almost unnecessary and the required operation force can be made extremely small.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

The first embodiment shown in FIGS. 1 to 4 is one in which the present invention is applied to a box cock of a type that is buried in a wall surface, and a pipe connecting portion serving as a gas inlet is provided at a lower end of the cock body (1). (1
0) is provided, and above this, on the downstream side of the flow path
(2) is accommodated, and its operation shaft (21) projects from the upper end of the cock body (1). A rotating arm (22) capable of rotating in a range of 90 degrees is attached to the protruding end, and the protruding pieces (23), (24) are attached to both ends of the rotating arm (22). Is provided.

In the vicinity of the protrusions (23) and (24), there are first and second push buttons.
A guide tube (4) is provided for fitting the (31) and (32) separately into a paired pair, and the guide tube (4) is the cock body (1).
The protrusion piece (23) is fixed to the end face of the guide tube (4) in the movement locus of the first push button (31) in the guide tube (4), and the protrusion piece is in the movement locus of the second push button (32). (24) are protruding. The relationship between the protrusion (23) and the first push button (31) and the relationship between the protrusion (24) and the second push button (32) are the same as those of the first and second push buttons (31) and (32). The projecting pieces (23), (24) are set in an interlocking relationship so as to allow movement in an arc shape with respect to linear movement. Therefore, in this embodiment, as shown in FIG. 2, at the end of the first push button (31), a rectangular elongated hole (33) long in the direction perpendicular to the moving direction of the first push button (31) is formed. ) Is formed,
A protrusion (23) having a circular cross section is fitted in this (33). On the other hand,
The end surface of the second push button (32) in the pushing direction is
The end surface is perpendicular to the moving direction of the push button (32), and the circumferential side of the projecting piece (24) having a circular cross section is in contact with this end surface.

The first and second push buttons (31), (32) are formed in a rectangular tube shape, and the rectangular tube body is fitted into the guide tube (4) to form a bottom wall of the guide tube (4). The springs (40), (40) are interposed between the bottom wall of the box (B) for mounting the gas cock, which constitutes the above, and thereby the first and second push buttons (31), (32) respectively. Is urged in the return direction.

Further, the first push button (31) has a moving element as an engaging means.
As shown in FIG. 3, the moving element (34) is provided with a first push button (34) so that the moving element (34) can move back and forth at right angles to the moving direction of the first push button (31). 31),
The spring (35) constantly urges the mover (34) in the advancing direction, and further, the tip of the mover (34) is formed in a spherical shape and protrudes from the first push button (31) to the outside, and is guided to the inner surface of the guide cylinder (4). It has been contacted. Further, when the first push button (31) is pushed in the most, a recess (41) is formed in the inner wall of the guide cylinder (4) which coincides with the tip of the mover (34). When the button (31) is pushed in,
The tip end of (34) fits into the recess (41) and the first and second push buttons (31), (32) move to open the gas cock as shown in FIG.

The engaging force between the mover (34) and the recess (41) is set by the biasing force of the spring (35) and the degree of engagement between the mover (34) and the recess (41). In the above, the predetermined value is set in consideration of the turning torque of the closing member (2), the restoring biasing force of the spring (40) and the operating force applied to the second push button (32).

Next, in this embodiment, the operating shaft (21) is made to project from the end portion on the small diameter side of the closing member (2), and its posture is reversed from that of the closing member (2) in a normal gas cock. With this configuration, the rotational operation force of the closure (2) can be reduced as compared with the conventional one.

It should be noted that, as a configuration in which the first push button (31) is elastically engaged with the inner wall of the guide tube (4) at the predetermined position,
As shown in the figure, it is also possible to employ a leaf spring engagement means. In this case, the tip of the leaf spring (36)
A bent portion (37) having an arcuate cross section which engages with the recess (41) is formed, and when the first push button (31) is pushed in, the recess (41) of this (37) and the guide tube (4). The mounting position is set to a predetermined value so that and match.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a sectional view taken along line XX, FIG. 3 is a sectional view taken along line YY, and FIG. 4 is the first and second push buttons (31) with the gas cock open. , (32) is an explanatory view showing the position, FIG. 5 is an explanatory view of the main part of the second embodiment, FIG. 6, and FIG.
The figure is an explanatory view of a modified example of the conventional example. In the figure, (1) …… cock body (2) …… closed (21) …… operation axis (22) …… rotating arms (23), (24 ) …… Protrusions (31), (32) …… First and second push buttons

Claims (1)

[Scope of utility model registration request] 1. A gas cock of a type in which a gas cock is opened by pushing a first push button (31) for opening operation and is closed by pushing a second push button (32) for closing operation. Closed from the end of the cock body (1)
The operating shaft (21) of (2) is projected to connect the rotating arm (22) to the end of the operating shaft (21), and the protrusions (23) provided at both ends of the rotating arm (22). ), (24) are arranged along the rotation range of the first and second push buttons (31), (32), and the fixing members attached to the cock body (1) are paired with each other to form the first pair.・ Second push button
Set the movement directions of (31), (32) and the loci of protrusions (23), (24) in substantially the same direction, and set the first and second push buttons (31), (32) to the initial position. These springs (40) (40) are urged separately to return them, and the first push button (31) is connected to one of the protruding pieces (23) and closed to the first push button (31). The second push button (32) is provided with engaging means for engaging the fixing member with a constant urging force at the pushing position corresponding to the fully opened state of the child (2).
Is a push button type gas cock that is in contact with the other protrusion (24) so as to transmit only the pushing force corresponding to the closing operation.