JP3212557B2 - Key switch device and method of assembling the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates, has a key top, host a guide support member for guiding and supporting the up-and-down movement of the key top
Regarding a key switch device locked to a rudder member , particularly, assembling of a guide support member and a holder member and assembling of a guide support member and a key top are extremely easy, and operability of the key top is good. The present invention relates to a key switch device.

[0002]

2. Description of the Related Art Conventionally, various key switch devices have been proposed. In such a key switch device, generally, a key stem vertically provided from the back surface of a key top is vertically slid by a key holder portion formed on a holder plate. Configuration was adopted .

In a key switch device having such a configuration,
If the part where the key stem is slid and guided by the key holder part is enlarged, the key operability is improved, but it is not possible to respond to the thinning of the keyboard. There has been a dilemma in that if the sliding guide portion is made smaller, key operability is reduced due to the torsion occurring between the two.

[0004] The present applicant has eliminated the key stem and the key holder in order to eliminate such a dilemma in the conventional key switch, and has proposed a key switch device which can cope with a thin keyboard and has good key operability. −
It was proposed in the specification and drawings attached to the application of No. 330160. FIGS. 9 to 1 show such a key switch device.
It is shown in FIG. The detailed configuration of this key switch device will be described below with reference to the specification and drawings of Japanese Patent Application No. 3-330160.

In FIG. 9, a key top 1 made of resin is
Locking holes 4 and locking grooves 5 of two locking portions 2 and 3 (a pair of each locking portion 2 and 3 exist) provided on the back surface thereof
Locking portions 26, 2 of a resin holder plate 25 and
The guide support member 6 (including two resin link members 7 and 8) disposed between the lock groove 28 and the lock hole 29 of the lock member 7 (each of the lock portions 26 and 27 is a pair). The locking pins 13 and 14 provided at one end of the link member 7 are provided in the locking holes 4, and the locking pins 15 and 16 provided at the other end are provided in the locking grooves 2.
8, locking pins 23 and 24 provided at one end of the link member 8 are locked in the locking groove 5, and locking pins 21 and 22 provided at the other end are locked in the locking holes 29. Up and down).

[0006] Axial support A of the link members 7 and 8
Is a flexible circuit board 3 supported on a support plate 32
The switch is arranged at the top of a rubber spring 31 placed on the top of the rubber spring 31, and when the key top 1 is pressed down, the rubber spring 31 buckles via the shaft support A to perform a switching operation.

As shown in FIG. 10, the link member 7 is formed by integrally forming two base ends 10 and 11 at both ends of a base 9. A shaft 12 extends from one side surface of the central portion of the base 9, and the shaft 12 is supported by a shaft hole 20 formed in the other link member 8, which will be described later.
Locking pins 13 and 14 extend from the side surfaces of both end extending portions 10 </ b> A of the base end portion 10.
Reference numeral 14 denotes a lock which is locked in the locking hole 4 formed in the locking portion 2 of the key top 1 described above. Further, the base end portion 11 is formed in a U-shape in plan view, and the U-shaped both end extending portions 11 are formed.
Lock pins 15 and 16 similar to those described above extend from the side surface of A. The locking pins 15 and 16 are locked by locking portions 26 formed on the holder plate 25.

Further , as shown in FIG. 11, the link member 8 is formed by integrally forming two base ends 18 and 19 at both ends of a base 17. The shaft hole 2 is provided at the center of the base 17.
The shaft 12 provided on the base 9 of the link member 7 is inserted into the shaft hole 20 as described above. Also,
The base end portion 18 is formed in a U-shape in plan view, and locking pins 21 and 22 are extended from the U-shaped both end extending portions 18A. The locking pins 21 and 22 are locked by locking portions 27 formed on the holder plate 25.

Further, locking pins 23 and 24 similar to the above are extended from both end extending portions 19A of the base end portion 19, and the locking pins 23 and 24 are the locking portions 3 of the key top 1 described above. Is slidably locked in the locking groove 5 formed in the groove.

As described above, the guide support member 6 has one
Phosphorus shaft 12 formed in the base 9 of the link member 7 other
The link members 7 and 8 are mutually rotated via a shaft support A formed by the shaft 12 and the shaft hole 17. It becomes possible. According to such a key switch device, a key switch device having good key operability while realizing a thin keyboard can be realized.

[0011]

However, in the key switch device described in the specification and the drawings of Japanese Patent Application No. 3-330160, the holder plate 25 and the two
There has been a problem that assembly with the guide support member 6 including the link members 7 and 8 and assembly of the key support 1 with the guide support member 6 cannot be performed easily and easily.

That is, in order to assemble the key switch device, first, the link member 7 and the link member 8 are assembled in a cross shape to form the guide support member 6, and then the both ends of the link member 8 at the base end 18 thereof are locked. The pins 21 and 22 are pressed into the locking holes 29 of the locking portions 27 of the holder plate 25. At this time, the locking portion 27 is closed without being opened as shown in FIG.
The press-fitting into the locking holes 29 is performed by utilizing the resin elasticity of the end extension 18A and each of the locking pins 21 and 22. Is difficult, and therefore the press-fitting operation is likely to be unstable. Therefore, this press-fitting operation was considerably complicated.

The locking pins 15, 16 at the base end 11 of the link member 7 are pressed into the locking grooves 28 of the locking portion 26. Even in such a case, since the locking portion 26 is closed without being opened as shown in FIG. 9, the press-fitting of the locking pins 15 and 16 is performed by the end extending portion 11A and the locking pin 15 , 16 using the mutual resin elasticity, it is undeniable that the operation is complicated as described above.

[0014] After this manner the connecting work between the respective locking portions 27 and 26 of the link members 7,8 and the holder plate 25 has been completed, then the engaging pin in the link member 7 13, 1
4 is pressed into the locking hole 4 of the locking portion 2, and the work of pressing the locking pins 23 and 24 of the link member 8 into the locking groove 5 of the locking portion 3 is performed. . In this double press-fitting operation as well, the locking portions 2 and 3 are closed without being opened as shown in FIG.
Since the operation is performed by utilizing the resin elasticity between the locking portions 4, 23, and 24 and the respective locking portions 2, 3, the complicated operation is the same as the above operation.

As described above, the aforementioned Japanese Patent Application No. Hei.
In the key switch device described in the specification and the drawings of No. 0, each locking portion 26, 27 of the holder plate 25, and
Since the locking portions 2 and 3 of the key top 1 are closed, all the connecting operations between the link members 7 and 8 of the guide support member 6 and the holder plate 25 and the key top 1 are performed by all the members. This is performed by utilizing resin elasticity. Further, since it is necessary to lock each locking pin 13 and the like inside each locking hole 4 and the like, it is necessary to perform the entire assembly work of the key switch device. There has been a problem that it is necessary to perform a complicated press-fitting operation over the entire area.

[0016] The present invention has been made to solve the problems of the prior art, proposals in the support member and with the assembly of the key top is extremely easy, good key switch operation of the key top It is intended to provide a device.

[0017]

Key switch according to claim 1 SUMMARY OF THE INVENTION To achieve the above object, a key Toppu, while being disposed below the key <br/> Toppu, rotation locking unit and the sliding
A holder member having a dynamic locking portion , a first link member,
And a second link member, and each of the link members is arranged in a mutually movable state, and a key top and a holder member are provided.
DOO comprises a guide support member for guiding the vertical movement of the key top, and a switching member performing a switching operation in accordance with the vertical movement of the key Toppu by linking the first phosphorus
The key member is pivotally locked to the upper end of the
A first locking member is formed, and the lower end is slid on the holder member side.
A third locking member to be locked dynamically is formed, and
Key on the top end of the link member.
Forming a second locking member, and a lower end portion on the holder member side.
Forming a fourth locking member that is rotatably locked, the first link member
And the second link member are assembled in a mutually movable state,
The third locking member at the lower end of the first link member is a holder.
And the second link member
The fourth locking member at the lower end portion of the
Above the locked guide support member,
Flop is placed, the arrangement has been Quito-up the guide support
The key top is guided and supported by pressing the material downward.
It is characterized by being connected to a member .

Further, in the key switch device according to the second aspect,
The assembling method is as follows.
And a housing in which a rotation locking portion and a sliding locking portion are formed.
It has a rudder member, a first link member and a second link member.
As well as arranging the link members in a mutually movable state.
By connecting the keytop and holder member
A guide support member for guiding the vertical movement of the key top, and a key
Switch that performs a switching operation as the
An upper end of the first link member.
Form first locking member that is turned and locked on the key top side
And a third locking member slidably locked on the lower end portion on the holder member side.
Forming the member and the upper side of the second link member
Form a second locking member slidably locked on the key top side at the end
And a fourth engagement member rotatably locked to the lower end portion on the holder member side.
A method for assembling a key switch device having a stop member.
And the first link member and the second link member are mutually movable.
And the first link attached
The third locking member at the lower end of the member is
The lower end of the second link member.
A step of locking the fourth locking member to the rotation locking portion of the holder member
And whether the key top is placed above the guide support member
Key downward by pressing the key top
-The process of connecting the top and holder member
And features.

[0019]

According to the present invention having the above-described structure, when assembling the key switch device, first, the first link member and the second link member are arranged in a mutually movable state to assemble the guide support member.
Then, the third locking member at the lower end of the first link member is locked by the sliding locking portion of the holder member, and the fourth locking member at the lower end of the second link member is locked. Is locked to the rotation locking portion of the holder member .

Next, as described above, the third link member
The locking member and the fourth locking member of the second link member are
Locked to the sliding and rotating locking parts of the rudder member
In the first link member constituting the draft within the support member and the second re
The key top disposed above the link member, you lightly pressing the key top downward. As a result, the key top is guided and supported
Connected to the member. In this state, the first link member
The first locking member is rotatably locked on the key top side, and
The second locking member of the two link member slides on the key top side.
Dynamically locked.

At this time, the key top and the guide support member are
When connecting, place the key top above the guide support member
With the key pressed, press the keytop to
Can be connected to the guide and support members.
Accordingly, the connection between the two can be performed extremely easily.

Further , the first link member and the second link member
Are assembled in a mutually movable state and then connected to the holder member.
Because the lock is locked, the key
Do not clearly see the guide support members when connecting
You only have to connect the key tops, so the key tops
Can be easily connected to the guide support member.
Further, on the key top side, a first locking member of the first link member
And the second locking member of the second link member is slid.
Dynamic locking, and on the holder member side, the first link member
The third locking member is slidably locked, and the fourth link member of the second link member is locked.
Since the stop member is configured to be rotationally locked, the key top
First locking member and second link member of the first link member on the side
Are locked together with the second locking member, and the first locking member is
Third locking member of link member and fourth engagement of second link member
Compared to a key switch device that slides and locks a stop member,
Shake the key top horizontally while pressing the key top
It can be lowered smoothly without any trouble.

When the switching operation is performed by the key switch device assembled as described above, the key top is depressed. When the keytop is pressed, the keytop is guided downward via the guide support member with the pressing. When the key top is pressed, the guide support member is also moved downward, whereby a switching operation is performed via the switching member.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a vertical cross-sectional view of the key switch device according to the present embodiment.
Numeral 1 is molded from a synthetic resin such as an ABS resin, and letters such as alphabets are formed on the upper surface thereof by printing or the like. Also, from the back surface of the key top 41, two locking portions 42, 43 (each locking portion 42, 43 has a pair in the direction perpendicular to the paper surface, and FIG. 1 shows only one of each pair). Is provided integrally with the key top 41 body downward.

[0025] engaging portion 42 engaging pivotably latch rod 53 formed on one end of one of the link members 47 of the two link portions <br/> member 47, 48 to be described later A locking groove 44 is formed, and a locking pin 43, 64 formed at one end of the other link member 48 is slidably locked in the locking portion 43 in the horizontal direction. Locking groove 45 is formed.

The locking groove 44 is formed with a locking guide portion 44A which is continuous with the locking groove 44 and opened so as to gradually expand downward. 44A guides the locking rod 53 of the link member 47 toward the locking groove 44 when snapping into the locking groove 44. Further, the locking groove 4 of the locking portion 43
5 is provided with a locking guide portion 45A having a slope extending downward, and the locking guide portion 45A connects the locking pins 63 and 64 of the link member 48 with the locking grooves. It is guided toward the locking groove 45 when snapping into the inside 45.

Below the key top 41, a key top 1 is provided.
Guide support member 46 to the vertical movement guide support and is arranged, such guide support member 46 two link members 4
7 and 48.

One link member 47 is formed in a U-shape in plan view as shown in FIG. 2 and has a pair of plate members 49 and a locking bar 53 between one ends of each plate member 49. Are formed integrally, and locking pins 55 and 56 are formed at the other end of each plate-like body 49. The locking bar 53 is connected to the locking portion 42 via the locking guide portion 44A.
The locking pins 55 and 56 are locked by locking portions 66 formed on a holder plate 65 described later. Here, the locking rod 53 has a large rigidity due to its rod-like structure .
Therefore, the strength of the link member 47 is increased by the presence of the locking bar 53, and the handling thereof becomes easy.

Further, a pair of shafts 52 are provided at positions facing each other from the central position on the side of each plate-like body 49 facing each other. Each of these shaft members 52 is supported by a shaft hole 60 formed in the other link member 48 described later. The locking bar 53 of the link member 47 and the locking pins 55 and 56 are configured so that the distance from each shaft 52 is equal.

Further, as shown in FIG. 3, the other link member 48 has a pair of plate-like members 57, and a locking bar 61 is integrally formed between one end of each plate-like member 57. Locking pins 63 and 64 are formed at the other end of each plate-like body 57. Both ends of the locking bar 61 are locked by locking portions 67 of a holder plate 65 described later, and the locking pins 63 and 64 are locked by the locking guide portion 45A. It is snapped into the groove 45. Here, the locking rod 61 has a large rigidity due to its rod-like structure, so that the strength of the link member 48 is increased due to the presence of the locking rod 61, and the handling thereof becomes easy.

Further, shaft holes 60 are respectively formed at central positions facing each other outside the plate-like members 57, and each plate-like member of the link member 47 is formed in each of the shaft holes 60. Each shaft 52 formed at 49 is rotatably fitted. As a result, the link members 47 and 48 are rotatable crossing each other via the shafts 52 and the shaft holes 60, and the shaft supporting portions A are formed by the shafts 52 and the shaft holes 60.
Is formed. The locking bar 61 of the link member 48 and the locking pins 63 and 64 are configured so that the distance from the shaft hole 60 is equal. Also, as shown in FIG.
That constitutes the intersection between the link member 47 and the link member 48
The distance from the portion A to the locking rod 53 of the link member 47,
The distance from the support A to the locking rod 61 of the link member 48 and
Are set at substantially the same distance.

Further, between the central portions of the plate-like members 57, a rubber spring 71, which will be described later, is mounted on the upper surface, and when the key top 41 is pressed, each link member 4 is pressed.
A push rod 58 is provided for pushing down the rubber spring 71 in accordance with the mutual rotation of 7 and 48. This
That is , the push rod 58 pushes down the rubber spring 71 in accordance with the push of the key top 41 to perform a switching operation.

Next, a resin-made holder plate 65 is provided below the guide support member 46. The holder plate 65 has a locking portion 6 corresponding to each switch device.
6 and 67 (two locking portions 66 and 67 are provided, respectively, but one locking portion 66 and 67 is shown in FIG. 1).

A sliding groove 68 having the right side as the open side in FIG. 1 is formed in the locking portion 66.
The locking pins 55 and 56 formed on the link member 47 are inserted into the sliding grooves 68. 1 , a sliding groove 69 whose right side is the open side in FIG.
In FIG. 1 , a locking projection 69A having an inclined surface is formed on the right side in FIG. A locking rod 61 formed on the link member 48 is provided in the sliding groove 69 of the locking portion 67.
Are inserted at both ends. In addition, a pair of guide walls 7 for guiding the outer surface of each plate-like body 49 of the link member 47 between the locking portions 66 and 67 on the holder plate 65.
3 (see FIG. 4) is provided upright.

[0035] As a result, the Li in the guide support member 46
Locking pins 55 and 56 of link member 47 and link member 48
The sliding rod 61 is slid on the holder plate 65 while guiding the outer surface of each plate-like body 49 of the link member 47 to each guide wall 73 from the open side of the slide groove 68 and the slide groove 69, respectively. Accordingly, the locking pins 55 and 56 and the locking rod 61 are inserted into the sliding grooves 68 and 69, respectively.
Then, after the locking bar 61 gets over the locking projection 69A in the sliding groove 69 at the time of such insertion, the locking bar 61 does not come off from the sliding groove 69 .
The locking rods 61 and the locking pins 55 and 56 are rotatably held in sliding grooves 69 and 68, respectively.

The holder plate 6 configured as described above
5, a flexible circuit board 70 on which switch electrodes 70A are formed corresponding to the respective key switches is arranged as shown in FIG. Rubber spring 71
Are mounted on the flexible circuit board 70. Further, a movable electrode 71A is fixed to the inner top wall of the rubber spring 71 so as to face the switch electrode 70A on the circuit board 70. A pressing rod 58 formed on the link member 48 is disposed on the upper surface of the rubber spring 71.

As a result , when the push rod 58 moves downward with the depression of the key top 41, the rubber spring 7
1 is depressed by the push rod 58, and when a certain amount of depression is exceeded, the rubber spring 71 is buckled and the movable electrode 71A comes into contact with the switch electrode 70A on the flexible circuit board 70, thereby performing a switching operation. It is.

A switch support plate 72 is provided below the flexible circuit board 70. The switch support plate 72 is provided above each of the circuit boards 70,
This supports the holder plate 65.

[0039] In the above arrangement, engagement formed in the locking portion 42 and the holder plate 45 formed on the back surface of the key top 41 to present to the left side in FIG. 1 relative to the vertical line L passing through the center of the shaft support A A locking groove 44 and a locking bar 61 for rotatably locking the locking bar 53 are respectively provided in the stop portions 67.
Is provided in such a manner that the sliding groove 69 is rotatably locked in cooperation with the locking projection 69A. In addition, FIG.
In the locking portion 43 formed on the back surface of the key top 41 existing on the right side and the locking portion 66 formed on the holder plate 65, locking pins 63, 64 and locking pins 55, 56 are respectively provided. That is, the locking groove 45 and the sliding groove 68 that are slidably locked in the horizontal direction are provided.

Next, a method of assembling the key switch device configured as described above will be described with reference to FIGS. First, the flexible circuit board 70 on the switch support plate 72, with placing the holder plate 65, tree
The guide support member 46 is assembled by fitting each shaft 52 of the link member 47 into each shaft hole 60 of the link member 48 by using lipo-elasticity .

Thereafter, the link members 47 and 48 are rotated to each other so as to be in the horizontal state shown in FIG. 5, and the locking pins 55 and 56 of the link member 47 and the locking rod 61 of the link member 48 are formed.
Is guided by the guide walls 73 from the open sides of the sliding grooves 68, 69 in the locking portions 66, 67, and is slid into the sliding grooves 68, 69 on the holder plate 65. Then, when further sliding, the link member 48
The locking bar 61 is provided with a locking projection 69 formed in the sliding groove 69.
Get over A from the slope side. This state is shown in FIG. Thus, the connection between the guide support member 46 and the holder plate 65 is completed.

As described above, the locking bar 61 of the link member 48
The connection between the guide support member 4 and the sliding groove 69, and the connection between the locking pins 55 and 56 of the link member 47 and the sliding groove 68.
6 from the open side of each sliding groove 68, 69
Since it is done only by sliding on 5,
The connection between the guide support member 46 and the holder plate 65 can be performed very easily. At this time, the guide support member 46 is guided by the respective guide walls 73 at the time of sliding, so that the guide support member 46 is moved to the respective slide grooves 68, 69.
Not be deviated from, and therefore, such a guide wall 7
3, the connecting operation can be performed more easily. Further, engaging rod 61 itself has a greater rigidity and from the rod-like structure, therefore, the engagement between the engaging rod 61 and the sliding groove 69 is readily row of cracking.

Next, are opposed to the engagement groove 44 of the engaging rod 53 and the key top 41 of the link member 47 which is held in the state of FIG. 6, also the locking pin 63, 64 of the link member 48 and the key After facing the locking groove 45 of the top 41 (see FIG. 7), the key top 41 is lightly pressed down. As a result, the locking bar 53 of the link member 47 is snapped into the locking groove 44 while being guided by the locking guide portion 44A, and at the same time, the locking pins 63 and 64 of the link member 48 are locked by the locking guide portion 45A. Is snapped into the locking groove 45 while being guided. Such a state is shown in FIG. Thus, the connection between the guide support member 46 and the key top 41 ends. At this time, engaging rod 53 has a greater rigidity and from the rod-like structure, therefore, the engagement between the engaging rod 53 and the locking groove 45 is readily row of cracking.

As described above, the locking bar 53 of the link member 47
The connection between the key top 41 and the locking groove 44 of the key top 41 and the connection between the locking pins 63 and 64 of the link member 48 and the locking groove 45 of the key top 41 are changed from the state shown in FIG. Key top 4
Since it is made only by pressing the 1 gently downward, those obtained no line very easily connected with the guide support member 46 and the key top 41.

Although the assembly of the key switch device is completed by the above-mentioned operation, the connecting operation of each of the link members 47 and 48 with the holder plate 65 and the key top 41 can be performed very easily. In addition to simplifying the assembling work, the assembling time can be shortened, and the key switch device can be reliably assembled regardless of the assembling ability of the operator.

Next, the operation of the key switch device assembled as described above will be described. Key top 41
When the key is pressed downward, the locking bar 53 of the link member 47 is not deformed due to its rigidity as the key top 41 moves downward, and is moved counterclockwise in the locking hole 44 of the locking portion 42. And the link member 4
The locking pins 63, 64 are horizontally arranged (rightward in FIG. 1) in the locking grooves 45 of the locking portion 43 due to their lightness.
Sliding smoothly. At the same time, the link member 48
Without being deformed based on its rigidity,
The locking projections 69A cooperation in the sliding slot 69 of the locking portion 67 of the holder plate 65 as to smoothly rotate in the clockwise direction, the locking pin of the link member 47 55,5
6 smoothly slides in the horizontal direction (right direction in FIG. 1) in the sliding groove 68 of the locking portion 66 due to its lightness.

When the key top 41 is depressed, the guide support member 46 is restricted between the guide walls 73 in the left-right direction in FIG. 4, thereby preventing the key top 41 from rattling unnecessarily.

As a result, the shaft supporting portion A which supports the link members 47 and 48 with each other moves downward and gradually presses the rubber spring 71, and when the pressing amount exceeds a certain limit, the rubber spring 71 is pressed. The spring 71 is buckled. Thereby, the movable electrode 7 in the rubber spring 71
1A is the switch electrode 70 on the flexible circuit board 70
A is short-circuited and a predetermined switching operation is performed.

[0049] When you release the pressing of the key top 41, both Li
The shaft supports A of the link members 47 and 48 are rubber springs 71.
It is pushed upward by the elastic restoring force of. Accordingly, the engaging rod 53, the locking pin 55 of the link member 47,
56, the locking bar 61 of the link member 48, the locking pin 6
3, 64 perform the opposite operation as described above, so that
The key top 41 is returned to the original position.

Here, since the locking rods 53 and 61 are not moved in the horizontal direction but only rotate in the locking groove 44 and the sliding groove 69, respectively, the key top 41 is moved in the horizontal direction. The key top 1 is moved up and down without being moved.

As described above in detail, in the key switch device according to the present embodiment, when assembling the key switch device,
The locking pins 55 and 56 of the link member 47 and the locking rod 61 of the link member 48 are connected to the guide walls 73 from the open sides of the sliding grooves 68 and 69 in the locking portions 66 and 67. While being guided, the sliding member 68 is slid on the holder plate 65 into each of the sliding grooves 68, 69, and the locking rod 61 of the link member 48 is formed with a locking projection 69A formed in the sliding groove 69.
The guide support member 46 and the holder plate 65 are connected by sliding until the guide support member 46 and the holder plate 65 are moved over, so that the work of connecting the guide support member 46 and the holder plate 65 can be extremely simplified.

In particular, when the guide support member 46 slides,
Since the guide support member 46 is reliably guided by the guide walls 73 toward the sliding grooves 68 and 69, the guide supporting member 46 does not come off from the sliding grooves 68 and 69 . With the guide wall 73, the connecting operation can be performed more easily.

The guide support member 46 and the key top 41
When the connection is performed, the locking rod 53 of the link member 47 is used.
It is opposed to the engagement groove 44 of the key top 41 and, also, Li
After the locking pins 63 and 64 of the link member 48 and the locking groove 45 of the key top 41 are opposed to each other, the key top 41 is lightly pressed downward, so that the locking bar 53 of the link member 47 is pressed.
Is snapped into the locking groove 44 while being guided by the locking guide portion 44A, and at the same time, the locking pins 63 and 64 of the link member 48 are snapped into the locking groove 45 while being guided by the locking guide portion 45A. Guide support member 4
Connecting the 6 and the key top 41 is to obtain very simply no rows. The link members 47 and 48 are mutually connected.
After being rotatably assembled, it is connected to the holder plate 65.
The link members 47 and 48 are
-For connecting top 41, each link from above
While clearly recognizing the members 47 and 48 ,
It is only necessary to connect the link members 47 and 48 to each other.
To easily connect the key top 41
It is.

Further, in the key switch device assembled by the simple assembling operation as described above, the link member 47 is provided.
The locking bar 53 is rotatably held without moving in the locking groove 44 of the locking portion 42 and the link member 48
The locking bar 61 is rotatably held without moving in cooperation with the locking projection 69A in the sliding groove 69, and the movement of the guide support member 46 is restricted between the pair of guide walls 73. As a result, the key top 41 is prevented from being moved in any of the front, rear, left, and right directions during the key operation. As a result, key operability can be significantly improved. In this regard, the link member 47
Lock bar 53 and link bar 61 of link member 48
Are pivotally locked together on the side of the
7 and the locking pins of the link member 48
63 and 64 are slidably locked together on the holder plate 65 side.
Depressed key top 41 compared to key switch device
Smooth without shaking the key top 41 in the horizontal direction
Obviously, it can be lowered downward.
Further, the link member 47, a large engaging rod 53 of the rigid provided, also, the link member 48, and a large engaging rod 61 of the rigid similarly provided, whereby each phosphorus
The lock members 47 and 48 are easy to handle, and each of these
Guide support member 4 constituted by link members 47 and 48
6 can be easily connected to the holder plate 65 and the key top 41 and assembled. Further, the link member 47
The locking rod 53 of the link member 48 and the locking rod 61 of the link member 48 are not deformed due to their rigidity, and are respectively
The rotation is smoothly performed between the locking projection 69A and the sliding groove 69, and the locking pins 55, 56 of the link member 47 are also rotated.
The locking pins 63 and 64 of the link member 48 slide smoothly in the sliding groove 68 and the locking groove 45, respectively, based on their lightness. Thereby, the operability of the key top 41 can be improved as a whole.

It should be noted that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the locking projection 69A is provided in the sliding groove 69 of the locking portion 67.
However, such a locking projection may be formed in the sliding groove 68 of the locking portion 66.

[0056]

As described above, the key switch according to the present invention is
According to the touch device and the assembling method thereof, the key top and the guide
When connecting with the support member, the key top is
With the keytop pressed while the
It is possible to connect the key top and the guide support member more
it can. Further, the first link member and the second link member are compatible.
After being assembled in a movable state with each other,
Key top against the guide support member
When connecting, keep the guide support member clear while
Key tops can be easily connected to guide supports.
Can be connected to the material. Furthermore, the key top side
Then, the first locking member of the first link member is rotationally locked, and
The second locking member of the second link member is slidably locked, and
On the rudder member side, slide the third locking member of the first link member into a sliding engagement.
To stop and to rotationally lock the fourth locking member of the second link member.
The first link member on the key top side
Of the first locking member and the second locking member of the second link member.
And the third link of the first link member on the holder member side.
The stop member and the fourth locking member of the second link member are both slidably engaged.
Key switch device
Smooth without shaking the key top in the horizontal direction inside
It can be lowered downward.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a key switch device.

FIG. 2 is a plan view of one link member.

FIG. 3 is a plan view of the other link member.

FIG. 4 is a cross-sectional view of the key switch device.

FIG. 5 is an explanatory diagram showing a state before a guide support member is connected to a holder plate.

FIG. 6 is an explanatory view showing a state after the guide support member is connected to the holder plate.

FIG. 7 is an explanatory view showing a state in which a key top is arranged on a guide support member connected to a holder plate.

FIG. 8 is an explanatory diagram showing a state in which a key top is connected to a guide support member connected to a holder plate.

FIG. 9 is a longitudinal sectional view of a conventional key switch device.

FIG. 10 shows one of the conventional key switch devices.
It is a top view of a link member.

FIG. 11 shows the other key switch used in the conventional key switch device.
It is a top view of a link member.

[Explanation of symbols]

1, 41 key tops 2, 3, 26, 27 42, 43, 66, 67 locking portions 6, 46 guide support members 7, 8, 47, 48 link members 13, 14, 15, 16, 21, 22, 23, 24 55,56,63,64 locking pin 25,65 the holder plate 31, 71 rubber spring 44 locking groove 44A, 45A engaging the guide portion 68, 69 slide groove 69A Kakaritome突electromotive 7 3 guide wall

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01H 13/14

Claims (2)

(57) [Claims] And 1. A key Toppu, while being disposed below the key top, turning locking
A holder member parts and the sliding engagement portion is formed, which has a first link member and the second link member,
Another will be placed in the movable state of each link member, said key
A guide support member for guiding the vertical movement of the key top by connecting the key top and the holder member; and a switching member for performing a switching operation in accordance with the vertical movement of the key top, and an upper end of the first link member. The key top in the section
Forming a first locking member which is rotatably locked on the side,
Forming a third locking member that is slidably locked on the holder member side
And at the upper end of the second link member.
Forming a second locking member slidably locked on the key top side,
Fourth locking member that is rotatably locked at the lower end portion on the holder member side
And the first link member and the second link member are mutually movable.
And the lower end of the first link member.
The third locking member is locked to the sliding locking portion of the holder member,
The fourth locking member at the lower end of the two-link member is a holder.
The guide support locked in the rotation locking portion of the member
The key top is disposed above the member, and
Key top presses the guide support member downward.
The key switch device , wherein the key top is connected to the guide support member . 2. A key top, which is disposed below the key top, and is rotatably locked.
A holder member parts and the sliding engagement portion is formed, which has a first link member and the second link member,
The link members are arranged so as to be movable with respect to each other,
-By connecting the top and holder
A guide support member for guiding the vertical movement of the key, and performing a switching operation in accordance with the vertical movement of the key top.
A switching member, and the key top is provided at an upper end of the first link member.
Forming a first locking member which is rotatably locked on the side,
Forming a third locking member that is slidably locked on the holder member side
And at the upper end of the second link member.
Forming a second locking member slidably locked on the key top side,
Fourth locking member that is rotatably locked at the lower end portion on the holder member side
A key switch device assembling method, wherein the first link member and the second link member are mutually movable.
And the lower end of the first link member thus assembled.
The third locking member is locked to the sliding locking portion of the holder member,
The fourth locking member at the lower end of the link member is a holder.
Locking the key top to the rotation locking portion of the material, and positioning the key top above the guide support member.
Pressing the key top downward from the state, and pressing the key top, the key top and the holder member.
Keith, characterized in that it consists of a step of bets is connected
How to assemble the switch device.