JP2002279852A - Pushing key structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pushing key structure in which the key is returned upward to the original upper position as the positioning rod of a positioning means is separated from the positioning point of a ring shape stairway, when the positioning means is pushed down by outside force. SOLUTION: The pushing key structure is composed of a key, a key case and a positioning means, and when the key is pushed down, the ring shape stairway that is provided at the key and a positioning rod provided at the positioning means are interlocked, and give the key a cyclic positioning relationship of downward and upward direction. When the key is positioned at the lower part position, by pushing down the positioning means, the positioning rod of the positioning means is separated from the positioning point of the ring shape stairway, and the key is elastically returned to the upper position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressing key structure.

[0002]

2. Description of the Related Art There are a great many uses and types of pressing keys. Generally, there is a lever-type key that we are familiar with, and the operation method is to rotate the center shaft by pressing the left and right sides of the center axis. There is also an up-down pressing key, and the operation method is to position the key in an upper or lower position by pressing.
The purpose of such a key, when used for a power switch, is to generate two kinds of operation strokes of energization (ON) and power cut (OFF) by an interlocking assembly.

Generally, a power switch having a breaker function at the time of current overload has an alloy made of two or more kinds of metal materials inside, and automatically opens at the time of overload due to a deformation phenomenon caused by overheating. Power off. Although there are no patents for such a switch structure, there are, for example, U.S. Patent Nos. 5,223,813, 4,937,548, 4,931,762, and 5,451,729. However, all such power switches use the key switch of this principle as a medium of operation, and such a lever type key switch, when repeatedly rotated many times, due to wear generated by the rotating shaft,
An interlocking error of the operation delay occurred, and sometimes it became impossible to respond.

[0004] The up-down action type press key does not have the problem of the wear of the press key of the operation medium itself, has a relatively good interlocking positioning effect, and the user can more easily make the state of the outer surface of the press key. Can be used to determine the usage state. However, such a vertical pressing key structure using an annular stairway does not only position the key vertically by manual operation of human pressing, but also presses the key by another specific and effective interlocking method. At first, it was not possible to recover the jumping of the key to the upper position before the pressing, so that these vertical keying type key structures had difficulty in application in the breaker structure at the time of current overload.

[0005]

SUMMARY OF THE INVENTION The main object of the present invention is to simplify a circulating localization pressing key device, combine a vertically moving key with a horizontal moving positioning means, and form a two-dimensional space motion relationship. Thus, the positioning rod of the positioning means is circulated and positioned in the annular step of the pressing key.

Another object of the present invention is to release the positioning rod from the positioning point in the annular stairway by pushing the positioning means so that the key is elastically returned to the original position without pressing the key. Is to be able to do that.

An object of the present invention is to apply the present invention to the structure of a circuit switch, to attach one alloy piece to a circuit,
When the circuit current overloads and overheats, the positioning means is pushed by utilizing the fact that the alloy piece is distorted and bent due to the temperature rise, and thereby the positioning rod is separated from the positioning point of the annular stairway, An object of the present invention is to make it possible to form a current-off state by causing a key to elastically recover to its original position.

[0008]

According to a first aspect of the present invention, there is provided a pressing key structure including an interlocking structure device composed of a key, a case, and a positioning means, wherein the key has a downward groove, An elastic means is assembled to the groove, a polygonal annular stairway is recessed on one side surface of the concave groove, a polygonal polygonal convex portion is provided in the middle of the annular stairway, and the case is provided on the side. A hollow case body having an opening, an upper end thereof having an opening, the key being assembled to the opening, the positioning means being assembled with a positioning rod, and the positioning rod being an annular step of the key; The positioning means extending in the way, being pressed and moving up and down, is combined with the positioning means moving left and right to form a two-dimensional movement relationship, so that the positioning rods of the positioning means are circulatingly positioned in the circular stairway of the key. When the positioning means is pushed by an external force, the positioning rod of the positioning means separates from the positioning point of the annular stairway, and the key is elastically recovered upward and reaches the original upper position. ,
It has a pressing key structure. According to a second aspect of the present invention, there is provided the pressing key structure according to the first aspect, wherein the elastic means provided in the groove of the key is a compression spring. The invention according to claim 3 is characterized in that at least one convex bar is provided on an inner side wall of the case, and a convex bar hole is provided at a position corresponding to the positioning means. And The invention according to claim 4 is characterized in that the convex rod hole of the positioning means is an elongated hole so that a reciprocating movement in a lateral direction can be formed corresponding to the convex rod. It has a pressing key structure. According to a fifth aspect of the present invention, one positioning portion is combined with the positioning means, and one end of the positioning portion is bent to form a positioning rod, and the positioning rod penetrates the positioning means and extends into the above-described annular stairway. The pressing key structure according to claim 1, wherein
According to a sixth aspect of the present invention, as the pressing key structure according to the first aspect, one positioning rod is connected to the positioning means, and one positioning rod is protruded, and the positioning rod is extended into an annular stairway. I have. According to a seventh aspect of the present invention, there is provided a pressing key structure according to the first aspect, wherein a pressing piece is formed at one end of the positioning means. The invention according to claim 8 is characterized in that one elastic locking means is combined with the positioning means, and the elastic locking means provides elasticity for bringing the positioning rod into contact with the annular stairway.
A pressing key structure according to the first aspect is provided.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The pressing key structure of the present invention comprises a key,
It is composed of a case and a positioning means. When a key is pressed, an annular stairway provided on the key and a positioning rod provided on the positioning means are linked to generate a downward or upward circulating positioning relationship on the key. When the key is positioned at the lower position, by pushing the positioning means, the positioning rod of the positioning means is disengaged from the positioning point of the annular step, and the key is elastically restored to the upper position.

When the present invention is applied to a switch structure, an alloy piece is assembled in an electric circuit, the alloy piece is located on a side of the positioning means, and when the circuit is on, a current is overloaded and overheated. When the alloy piece expands and distorts due to the temperature rise, the alloy piece pushes the positioning means, the positioning rod of the positioning means separates from the positioning point of the annular stairway, and the key elastically recovers upward. To the off position of the circuit to ensure the safety of power use.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 3, a pressing key structure according to the present invention is a key 1, has a concave groove 11 below, and an elastic means 14 is attached to the concave groove 11. In this case, the elastic means 14 serves as a compression spring to provide an upward elasticity of the key 1, and the polygonal annular step 12
The key 1 and the case 2 are provided with a polygonal convex portion 121 protruding in the middle of the annular stairway 12. The hollow case body has an opening on the side. Has an opening 21 therein, a locking groove 211 provided therein, the above-mentioned key 1 is assembled in the opening 21, and one perforation 26 and at least one convex bar 27 are formed in the inner side wall of the case 2. Are provided, the case 2 and the positioning means 4, each of which has a substantially elongated strip shape.
And one end of the positioning portion 40 is bent to form a positioning rod 41, and the positioning rod 41 is formed in the positioning rod hole 4 formed in the positioning means 4.
11 and into the aforementioned circular stairway 12,
The lower end of the positioning portion 40 is bent and assembled into the perforation 26 of the case 2, and furthermore, the elastic locking means 45 is further combined with the outside thereof, and one end of the elastic locking means 45 is inserted into the locking groove 211 of the case 2. Fixed and positioning rod 41
Of the case 2 is provided in the positioning means 4 at a position corresponding to the convex bar 27 of the case 2.
The positioning means 4 having an elongated hole 2 and 43 through which the protruding rod 27 can penetrate and reciprocate in a lateral direction, and a pushing piece 44 formed at one end of the positioning means 4; including.

First, FIG. 3 is a sectional view of an embodiment of the present invention. At this time, the key 1 is supported upward by the elastic force of the elastic means 14 (compression spring), and the key 1 is located at the upper position.

Please refer to FIG. When the key 1 is located at the upper position, the positioning rod 41 of the positioning means 4 is located at the lower end of the annular step 12 of the key 1.

The state of the key of the present invention from the upper position to the lower position will be described. First, please refer to FIG.
When the user presses the key 1, the elastic means 14 (compression spring) located in the concave groove 11 is compressed and accumulates elasticity to recover upward, and the positioning rod 41 originally moves the annular stairway 1.
2 was located at the bottom end, and the key was in the upper position (see FIG. 6a), but due to the restriction that the left side is relatively protruding, the positioning rod 41 was moved in the counterclockwise direction in an annular stairway. It moves to the upper right corner along 12 and becomes the state shown in b in FIG. When the user releases the key 1, the entire key 1 is elastically upwardly recovered by the recovery elasticity of the elastic means 14 (compression spring), and the positioning rod 41 melts in a reverse direction around the annular stairway 12 along the path. Reaching the apex of the convex portion 121,
That is, the key is located at the lower position. This is as shown by c in FIG.

At this time, as shown in the sectional view of the first embodiment of the present invention in FIG. 4, the key 1 is located at the lower position.

The manner in which the key of the present invention moves from the lower position to the upper position will be described. That is, when the user presses the key 1 in the state shown in FIG. 4, the elastic means 14 (compression spring) located in the concave groove 11 is compressed, accumulating upward recovery elasticity, and the annular step 12 The positioning rod 41 located at the apex of the inner polygonal convex portion 121 reaches the upper left corner along the annular stairs 12 counterclockwise due to the restriction that the right side relatively protrudes as shown in FIG. . This is Figure 6
D. When the user releases the key 1, the entire key 1 is elastically recovered upward by the recovery elasticity of the elastic means 14 (compression spring), and the positioning rod 41 is rotated counterclockwise along the path of the annular stairway 12 to the bottom. The end is reached, and the key 1 is in the upper position. This is the state shown in FIG.

At this time, as shown in FIG.
Is located in the upper position.

What has been described above is that when the key 1 is pressed to bring the key 1 to the upper position or the lower position when the present invention is in the general state, the key 1 and the annular step 12 and the positioning rod 41 of the positioning means 4 are set. Is an interlocking relationship.

Separately, when the positioning means 4 is pushed to the right by the external force 3, the positioning rod 41 of the positioning means 4 moves to the right as shown in FIG. As shown, at this time, since the key 1 has not been subjected to downward pressure, the entire key 1
The elastic rod is elastically upwardly recovered by receiving the elastic recovery force, and the positioning rod 41 recovers to the bottom end (the position of a in FIG. 7) along the path of the annular stairway 12 to form a state where the key 1 is at the upper position. (See FIG. 3).

FIG. 8 shows a second embodiment of the present invention, in which one positioning rod 41 'is projected from the positioning means 4 and one elastic locking means 45' is assembled. This provides resiliency for positioning rod 41 ′ to abut annular stairway 12. The relative interlocking relationship and operation of the positioning rod 41 'and the annular stairway 12 of the second embodiment are the same as the operation display diagrams shown in FIGS. 6 and 7, and are the same as those of the first embodiment.

The above embodiments are provided for illustrating the present invention, and do not limit the scope of the present invention. Modifications or alterations of details that can be easily made based on the present invention will Also belong to the claims of the present invention.

[0022]

The effects of the present invention are as follows. 1. The present invention simplifies the press key device for circulating localization, combines a vertically moving key with a left and right moving positioning means to form a two-dimensional space motion relationship, and thereby moves the positioning rod of the positioning means to an annular step of the pressing key. Position the circulation on the way. 2. According to the present invention, the key can be elastically jumped back to the original position without pressing the key by releasing the positioning rod from the positioning point in the annular step by pushing the positioning means. 3. The present invention utilizes the fact that, when applied to the structure of a circuit switch, one alloy piece is mounted in a circuit, and when the circuit current overloads and overheats, the alloy piece is distorted and bent due to temperature rise. By pushing the positioning means to move the positioning rod away from the positioning point of the annular step, the key is elastically rebounded to its original position, so that the current-off state can be formed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention.

FIG. 2 is a perspective view of a pressing key according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view after the combination of the first embodiment of the present invention, and shows a state in which the key is at an upper position when the key is released.

FIG. 4 is a cross-sectional view after the combination of the first embodiment of the present invention, showing a state in which the key is pressed to a lower position.

FIG. 5 is an operation diagram of the first embodiment of the present invention, in which the positioning means is pushed by an external force to move the positioning means sideways.

FIG. 6 is a view showing a relative position of an annular stairway of the key and a positioning rod when the key is pressed or released in a general state in the embodiment of the present invention.

FIG. 7 is a view showing a relative position of an annular stairway of a key and a positioning rod when the positioning means is pushed in an embodiment of the present invention.

FIG. 8 is an exploded perspective view of a second embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 key 11 concave groove 12 annular stairway 121 polygonal convex portion 14 elastic means 2 case 21 opening 211 locking concave groove 22 first insertion groove 23 second insertion groove 24 first contact terminal 25 second contact terminal 26 perforated 27 convex bar Reference Signs List 3 external force 4 positioning means 40 positioning part 41 positioning rod 41 'positioning rod 411 positioning rod hole 42 convex rod hole 43 convex rod hole 44 pushing piece 45 elastic locking means 45' elastic locking means

Claims (8)

[Claims] 1. A pressing key structure comprising an interlocking structure device composed of a key, a case, and a positioning means, wherein the key has a downward groove, and an elastic means is assembled to the concave groove, and the concave groove is provided. A polygonal annular stairway is recessed on one side surface, and a polygonal polygonal convex portion is protruded in the middle of the annular stairway. The case is a hollow case body having an opening on a side.
It has one opening at its upper end, the key is assembled to the opening, and the positioning means is assembled with one positioning rod, and the positioning rod is extended into the annular stairway of the key, pressed and moved up and down. The moving key is combined with the positioning means moving left and right to form a two-dimensional movement relationship, whereby the positioning rod of the positioning means is circulated and positioned in the annular step of the key, and the positioning means is pushed by an external force. The pressing key structure, wherein the positioning rod of the positioning means is separated from the positioning point of the annular stairway by being caused to move, and the key is elastically recovered upward and reaches the original upper position. 2. The pressing key structure according to claim 1, wherein the elastic means provided in the groove of the key is a compression spring. 3. The pressing key structure according to claim 1, wherein at least one convex bar is provided on an inner side wall of the case, and a convex bar hole is provided at a position corresponding to the positioning means. 4. The pressing key according to claim 3, wherein a convex rod hole of the positioning means is formed as an elongated hole so that a reciprocating movement in a lateral direction can be formed corresponding to the convex rod. Construction. 5. A positioning section is combined with a positioning section, and one end of the positioning section is bent to form a positioning rod, and the positioning rod penetrates the positioning section and extends into the above-mentioned annular stairway. The press key structure according to claim 1, wherein: 6. The pressing key structure according to claim 1, wherein one positioning rod is connected to said positioning means, and one positioning rod is protruded, and said positioning rod is extended into an annular stairway. 7. The pressing key structure according to claim 1, wherein a pressing piece is formed at one end of said positioning means. 8. The method according to claim 1, wherein one elastic locking means is combined with the positioning means, and the elastic locking means provides resilience for bringing the positioning rod into contact with the annular step. Press key structure.