JPH02284320A - Composite function type key switch device - Google Patents

Abstract

PURPOSE:To regulate on/off operation of two switches with one lock unit and reduce installing space and cost by providing a switch regulating main slider and sub-slider interlockingly installed to the lock unit. CONSTITUTION:When a slide switch is in on-state, the top end part 16 of a main slider 19 obstructs the pushing of a push button shaft 13 to the extent sufficient to release restriction, so that off-operation of the push button switch is prohibited. When both the top end part 23 of a sub-slider 25 and the top end part 16 of the main slider 19 are entered into the space between the rear end surface 15 of the push button shaft 13 and a case rear wall part 9, the push button shaft 13 can not be pushed and slid, and on-operation of the push button switch is prohibited. Namely, the on/off operation is regulated by the main slider 19 and sub-slider 25 interlocked with the rotor 5 of a lock unit 6. Hence, the operation of two switches can be regulated with one lock unit, resulting in a saving in mounting space and a reduction in cost.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a key switch device in which a lock unit is connected to a drive operation part of a switch.More specifically, one lock unit can connect two switches. This invention relates to a composite key switch device that regulates the operation of a key switch.

[Prior Art 1] Various types of equipment have already been equipped with key switch devices so that only authorized persons can manage their operation. In the field of personal computers as well, a key switch device is used as a power switch for the main body in response to user requests, and regulations are being implemented to prevent anyone who does not have the key from turning on the power to the main body.

On computers equipped with this key switch device, when a person in charge leaves the computer for business while the computer is being used, input operations from the keyboard may be performed while the computer is away, and work contents may be erased or altered, or the computer may be turned off. To prevent stored information from being deleted from the device's memory due to
After saving the previous work to an external storage medium such as a floppy disk, turn off the main unit's power using the key switch device, and then turn the main unit's power back on again using the key switch device after the car is finished and you return to your seat. operating.

[Problem to be solved by the invention] An old handwriting that solves the complexity of operating procedures associated with leaving the seat is to provide a switch on the main body that electrically locks input from the keyboard to the main body, and when the user leaves the seat, It is conceivable to turn on only this switch while the power of the main unit remains on, but this requires a key switch mechanism that restricts the operation of turning off the power of the main unit and at the same time turns on the keyboard lock switch. Is required.

However, in conventional key switch devices, one lock unit corresponds to one switch, so two lock units are required to control the power switch and keyboard lock switch of one main unit. In this case, the entire device becomes bulky and an excessive amount of installation space must be secured, and there is a problem in that the production and assembly cost increases by the addition of one lock unit.

Therefore, the object of the present invention is to provide two locks by one lock unit.
Since the on/off operations of individual switches can be regulated, it is possible to optimally manage the operation of various devices such as computers, and the number of lock units used can be halved, reducing installation space and costs. An object of the present invention is to provide a multifunctional key switch device.

[Means for Solving the Problems] The multifunction key switch device of the present invention will be described below using reference numerals in the attached drawings. It is composed of a button switch, a lock unit, and a switch regulation main slider 19 and a sub-slider 25 that are interlocked with each other.

The lock unit 6 is housed and fixed in a lock accommodating part 3 formed on the front wall 2 of the case l, and the rotor 5 is rotated by the key 4. The pushbutton shaft 13 of the pushbutton switch is slidably guided and accommodated in a pushbutton shaft accommodating portion 7 formed in parallel with the one-lock accommodating portion 3, and carries a movable contact piece 8 of the pushbutton switch at its rear end. There is. The push button shaft 13 is restrained in the on position where the movable contact piece 8 comes into contact with the fixed contact pieces 10 and 11 of the rear wall portion 9 of the case 1 by pushing and sliding, and when it is pressed again in the on position. , the restraint is released and the spring 12 returns to the off position.

The main slider 19 is housed in a sliding manner between the front wall 2 and the rear wall 9 of the case 1, and carries the movable contact piece 14 of the slide switch. The main slider 19 moves forward and backward relative to the push button shaft 13 by the rotation of the rotor 5 of the lock unit 6. When the tip 16 of the main slider 19 enters the space between the rear end surface 15 of the push button shaft 13 and the case rear wall 9 which are in the on position or the off position, the movable contact piece 14 of the slide switch moves into the space between the rear end surface 15 of the push button shaft 13 and the case rear wall 9. The fixed contact piece 17 and the fixed contact piece 18 are short-circuited.

The sub-slider 25 is slidably guided and accommodated on the front side of the main slider 19, and is biased to slide in the direction of the push button shaft 13 by a spring 20, so that the stop part 22 is pressed into contact with the traction part 21 on the main slider 19 side. are doing.

When the pushbutton shaft 13 is in the off position, the sub slider 2
The tip end 23 of the main slider 19 enters the space between the push button shaft rear end surface 15 and the case rear wall 9 together with the tip end 16 of the main slider 19 . When the pushbutton shaft 13 is in the on position, the tip 23 of the sub-slider 25 abuts against the side surface 24 of the pushbutton shaft 13 .

[Operation] As shown in FIG. 5, when the tip 23 of the sub slider 25 and the tip 16 of the main slider 19 are separated from the space between the rear end surface 15 of the push button shaft 13 and the case rear wall 9. That is, when the slide switch composed of the movable contact piece 14 and the fixed contact pieces 17 and 18 of the case rear wall 9 is in the OFF state, the push button shaft 13 can be pushed and slid; Fixed contact piece lO of contact piece 8 and case rear wall part 9
It is possible to turn on a push button switch consisting of a fixed contact piece 11 and a fixed contact piece 11.

When the pushbutton switch is turned on as shown in FIG. 16, the pushbutton shaft 13 is restrained in the on position,
Return sliding is prevented. Therefore, 1 lock unit 6
When the key 4 is inserted into the rotor 5 and the rotor 5 is rotated to move the main slider 19 forward with respect to the push button shaft 13,
The tip 23 of the sub slider 25 comes into contact with the side surface 24 of the push button shaft 13 and is prevented from moving forward, and from then on, only the main slider 19 slides forward, and the traction part 21 on the main slider 19 side moves toward the sub slider 15 side. It leaves the stop section 22.

When the tip 16 of the main slider 19 enters the space between the rear end surface 15 of the push button shaft 13 in the on position and the case rear wall 9, the movable contact piece 14 moves to the fixed contact piece 17 of the case rear wall 9. Since the slide switch comes into contact with both the fixed contact piece 18 and the fixed contact piece 18, it means that the slide switch has been turned on.

In this way, when the slide switch is in the on state, the tip of the main slider 19! 16, the pushbutton shaft 13 cannot be pressed sufficiently to release the restraint, and therefore, the off operation of the pushbutton switch is prohibited.

Further, as shown in FIG. 17, the tip 23 of the sub slider 25 and the tip 16 of the main slider 19 are connected to the push button shaft
When both the push button shaft 13 enters the space between the rear end surface 15 of the case 3 and the case rear wall 9, the push button shaft 13 cannot be pushed and slid, and the ON operation of the push button switch is prohibited.

[Embodiment] In the illustrated embodiment, the case 1 is composed of a box-shaped main body 1a and a lid 1b fitted thereto, and a cylindrical lock accommodating section 3 and a rectangular cylindrical pushbutton shaft accommodating section 7 are arranged. The case body 1a and Mlb are provided with four hook plates 26 protruding from the rear surface of Mlb, which are inserted into the notches 27 of the case body 1a and engaged with the non-return protrusions 28 on the sides of the main body. The case 1 is connected and fixed with two screws 2.
The push button shaft 13 is fixed to a panel of a device such as a personal computer by means of the push button 9, and an operating knob is attached to the front end of the push button shaft 13.

A lock unit 6 incorporating an appropriate locking mechanism such as a radial pin tumbler locking mechanism, a disc tumbler locking mechanism, or an axial pin tumbler locking mechanism has a cam protrusion 30 protruding from the rear end of the rotor 5. The cam projection 30 engages with a driven groove 32 in the base end 31 of the main slider 19. Therefore, when the rotor 5 is rotated forward or backward by 90 degrees with the key 4 inserted into the rotor 5, the main slider 19 is
The push button shaft 13 is guided by the inner surfaces of the rear wall 9, the front wall 33, and the bottom wall 34, and slides back and forth with respect to the push button shaft 13.

Two V-shaped recesses 35.
36, and in the recess 35, 36, an articulating arm 37 branched from the side surface of the proximal end 31 of the main slider 19 is provided.
The circular tip portion 38 of is elastically engaged and disengaged. Push button shaft 13
The distal end 3 of the articulating arm 37 is placed in the recess 35 that is further away from the
8 is engaged, the main slider 19 is held in a position where the tip 16 is separated from the space between the rear end surface 15 of the push button shaft 13 and the case rear wall 9. When the distal end 38 of the articulating arm 37 engages with the recess 36 that is closer to the pushbutton shaft 13, the main slider 19 has the distal end 16 between the rear end surface 15 of the pushbutton shaft 13 and the case rear wall 9. It is held at the position where it enters the space.

A movable contact housing portion 40 in which a longitudinal guide groove 39 is formed projects from the rear surface of the base end portion 31 of the main slider 19 . The movable contact piece 14, which is made by folding two metal plates, is connected to the guide groove 3.
It is supported on the main slider 19 by fitting into the intermediate enlarged portion 41 of 9. A plate-shaped fixed contact piece to, 11 fixed to the case rear wall part 9 is connected to the guide groove 3.
9, and when the main slider 19 slides forward, it is sandwiched between the movable contact pieces 14 and electrically short-circuited.

A curved guide portion is formed at the distal end of the movable contact piece 14 as necessary to ensure smooth engagement with the fixed contact piece 11.

A sub-slider 25 is provided in the elongated plate-shaped main body portion of the main slider 19 which is formed with a step rearward from the base end portion 31.
The sub slider 25 has two legs 42 and 42 protruding in parallel from the base end thereof. One leg 42
is slidably inserted between the case upper wall portion 33 and the movable contact piece storage portion 40 of the main slider 19, and the other leg portion 42
is inserted between the case lower wall portion 34 and the movable contact piece storage portion 40 while being slidably guided.

The sliding biasing spring 20 of the sub slider 25 is composed of a compression coil spring, and the spring 20 is installed between a spring receiving portion 43 formed on the case rear wall portion 9 and a tip spring receiving portion 44 of the leg portion 42. ing. A sliding guide portion 45 of the sub-slider 25 is provided protruding from the inner surface of the case front wall portion 2. The pulling portions 21 on the main slider 19 side are provided protruding from both side surfaces of the elongated plate-shaped main body portion, and the stop portions 22 on the sub slider 25 side are provided protruding from the root portions of the pair of leg portions 42.

The stop portion 22 of the sub slider 25 is pressed against the traction portion 21 of the main slider 19 by the biasing spring 20. As shown in FIG. 17, the tip 23 of the sub slider 25 and the tip 16 of the main slider 19
While both enter the space between the rear end surface 15 and the case rear wall 9, the rotor 5 of the single lock unit 6 is reversely rotated using the key 4, and the main slider 19 is moved to the push button shaft 13.
When the stop portion 22 is slid backward relative to the traction portion 2, the stop portion 22
1, the sub slider 25 is pulled by the main slider 19 and moves backward integrally with the main slider 19.

As shown in FIG. 16, when the pushbutton shaft 13 of the pushbutton switch is restrained in the on position, the rotor 5 of the locking unit 6 is turned on! 14, and when the main slider 19 is slid forward relative to the push button shaft 13,
The tip end 23 of the sub-slider 25 comes into contact with the side surface 24 of the push button shaft 13 and is prevented from moving forward, the stop part 22 of the sub-slider 25 separates from the traction part 21, and the spring 20 is compressed.

A narrow proximal end 46 of the movable contact piece 8 is attached to the front end of the plate-shaped fixed contact piece lO of the pushbutton switch fixed to the rear wall part 9 of the case.
The bent front end of another plate-shaped fixed contact piece 11 fixed to the case rear wall 9 is provided with a recess 47 for receiving the movable contact piece 8. Contact 4
9 is fixed.

Rectangular window holes 5 are provided in the wing portions 50 on both sides of the push button shaft 13.
1 is formed, and the movable contact piece 8, which is swingably fitted into the window hole 51, is pressed against the rear hole edge 53 of the window hole 51 by a compression coil spring 52, and the grooves 54 on both sides of the middle portion are formed in the window hole 51. By engaging the side hole edges 55,56 of 51,
Removal from the window hole 51 is prevented. A spring receiving portion 72 is provided protruding from the front edge of the window hole 51, and a spring receiving portion 73 is punched out from the narrow intermediate portion of the movable contact piece 8.

The movable contact piece 8 of the pushbutton switch, which is swingably supported on the pushbutton shaft 13 in this manner, is such that when the pushbutton shaft 13 is pushed and slid from the OFF state, the base end 46 first contacts the fixed contact. In this embodiment, two sets of the movable contact piece 8 and the fixed contact pieces 10 and 11 are provided.

A pair of blind holes 58 are formed in the rear end surface 15 of the square main portion 57 of the push button shaft 13, and a pair of blind holes 58 are formed in the case rear wall portion 9.
A spring receiving portion 59 is provided protrudingly facing the. Spring 12 for urging the push button shaft 13 back to return, which is composed of a compression coil spring.
The front half is accommodated in the blind hole 58, and the rear end is supported by the spring receiver 59. Two guide protrusions 74 are provided on one side of the square main portion 57.

The other side surface 60 of the square main portion 57 has a locking pin that engages with the bent tip 62 of the lock pin 61 to restrain the pushbutton shaft 13 in the on position, and releases the restraint when the pushbutton shaft 13 is pushed again. A heart mechanism receiving groove 63 is formed therein to allow the push button shaft 13 to return to the OFF position.

The receiving groove 63 has a flat groove part 63a and an upwardly sloped groove part 63.
b, a flat groove portion 63c, and a 90 degree step surface 63d,
A flat groove 63e, an upwardly sloped groove 63f, a flat groove 63g, a 90 degree step surface 63h, and a flat groove 6
3i, an upwardly sloped groove portion 63j, and a flat groove portion 63k,
A 90 degree step surface 631, a flat groove portion 63m, an upwardly sloped groove portion 63n, a flat groove portion 63o, and a 90 degree step surface 63p are formed in series, and the groove portions 63a, 63
The grooves e, 83i, and 63m are formed the deepest, and the grooves 63c
, 63o is formed the shallowest, 411 part 63g , 63
k is formed at an intermediate depth.

A recess 64 for accommodating a lock pin 61 is formed in the push button shaft accommodating portion 7 protruding from the case front wall 2 in the longitudinal direction, facing the side surface 60 of the square main portion 57 of the push button shaft 13.
A pair of vertical grooves 65 provided on the inner surface of the accommodation recess 64 include
Both ends of the leaf spring 66 are fitted and supported. The plate spring 66 is provided with a cut-and-raised piece 67 at its center, and the lock pin 61, whose bent front end 69 is inserted into the support hole 68 at the front end of the plate spring 66, is pushed by the cut-and-raised piece 67. It is pressed toward the button shaft 13 and maintained in engagement with the heart-shaped receiving groove 63.

As shown in FIGS. 5 and 9, when the pushbutton shaft 13 of the pushbutton switch is in the OFF position, the lock pin 61
The rear end 62 is located within the groove 63a of the receiving groove 63, and the front end surface 70 of the pushbutton shaft 13 is pressed against the front wall 71 of the pushbutton shaft accommodating portion 7 by the spring 12. Push button shaft 1
3 to the on position against the bias of the spring 12, the rear end portion 62 of the lock pin 61 falls into the groove portion 63e via the groove portion 63b, the groove portion 63c, and the step surface 63d.

If you release your finger from the push button shaft 13 at this point, the push button shaft 13
slides slightly forward due to the bias of the spring 12, and the rear end 62 of the lock pin 61 moves into the groove 63 as shown in FIG.
By engaging with the groove 63i through the groove 63f and the stepped surface 63h, the pushbutton shaft 13 is restrained in the on position.

When the push button shaft 13 is pressed again in this ON position, the rear end 62 of the low pin 61 escapes from the groove 63i, and
The groove 63j passes through the groove 63j and the groove 63, and the groove 63 passes through the stepped surface 631.
When the finger is released from the push button shaft 13, the push button shaft 13 slides back forward due to the bias of the spring 12, and the rear end 62 of the lock pin 61 comes out of the groove 63m and returns to the groove 63m. 63n, the groove 63o, and the stepped surface 63p, it falls into the first groove 63a, and at this time the pushbutton shaft 13 has completely returned to the OFF position.

As shown in FIG. 17, the tip 16 of the main slider 19
and the tip 23 of the sub-slider 25 enter the space between the rear end surface 15 of the push button shaft 13 and the case rear wall 9, the rear end 62 of the lock pin 61 is inserted into the groove 63.
a toward the groove 63e is blocked, and as shown in FIG. When the lock pin 61 is in the groove 6', the rear end 62 of the lock pin 61 is prevented from moving from the groove 63i to the groove 6'3m.

The operating mechanism of the pushbutton switch is not limited to the one shown in the drawings, but any type that is turned on by first pressing deeply and then turned off by pressing shallowly can be used in the device of the present invention. be able to.

[Effects of the Invention] As described above, in the multi-function key switch device of the present invention, the pushbutton shaft 13 has a push button made up of the movable contact piece 8 and the fixed contact piece lO and the fixed contact piece 11 of the case rear wall portion 9. A button switch and a slide switch composed of a movable contact piece 14 of a main slider 19 and a fixed contact piece 17 and a fixed contact piece 18 of a case rear wall part 9 are connected to a lock unit 6 housed and fixed in a case front wall part 2. The on/off operation is regulated by the main slider 19 and the auxiliary slider 25 which are interlocked with the rotor 5, and since the operation of two switches can be regulated by one lock unit, one switch can be used. 1
Compared to the case of using two conventional single-function key switch devices that are compatible with several lock units, the overall bulk of the device is reduced, saving installation space, and the number of lock units used can be halved. Manufacturing and assembly costs can be reduced.

Further, when the main slider 19 is slid to the position where the slide switch is turned on, the tip 23 of the sub slider 25 and the tip 16 of the main slider 19 are connected to the push button shaft 1.
3 by entering the space between the rear end surface 15 of the case 3 and the case rear wall 9 together.

On the other hand, the on operation of the push button switch is prohibited.

When the pushbutton shaft 13 is restrained in the ON position of the pushbutton switch, only the tip 16 of the main slider 19 enters the space between the rear end surface 15 of the pushbutton shaft 13 and the case rear wall 9.

Since the pushing operation of the push button shaft 13 to release the restraint is prohibited, the operation of the two switches can be controlled in various ways depending on the usage conditions of the target device.

For example, if a push button switch is used as the power switch for the main unit and a slide switch is used as a keyboard lock switch for a personal computer, it is necessary to simply restrict the power on operation of the main unit in order to prohibit unauthorized startup and use of the computer. By prohibiting input operations from the keyboard to the main unit while the main unit is turned on, when the person in charge leaves the computer while the computer is in use, saving and ejecting data to and from the floppy disk and powering the main unit each time the person leaves the computer is prohibited. It is possible to eliminate the tediousness of repeating on-fist-off operations, and this multi-function key switch device has great practical value in many fields.

[Brief explanation of drawings]

The drawings show a multi-function key switch device according to an embodiment of the present invention, in which FIG. 1 is a front view of the key switch device, FIG. 2 is a bottom view of the key switch device, and FIG. 3 is a bottom view of the key switch device.
The figure is a right side view of the key switch device, and FIG. 4 is a rear view of the key switch device. Figure 5 is a sectional view taken along line A-A in Figure 1, and Figure 6 is a cross-sectional view of Figure 1.
7 is a sectional view taken along line C-C in FIG. 2, FIG. 8 is a sectional view taken along line D-D in FIG. 2, and FIG. 9 is a sectional view taken along line D-D in FIG. 2, FIG. 10 is a sectional view taken along line F-FIG in FIG. 2, and FIG. 11 is a sectional view taken along line GG in FIG. 2. FIG. 12 is a sectional view taken along the line H--H in FIG. 11. 13 is a sectional view taken along the line I--I in FIG. 12, FIG. 14 is a front view showing the locking pin for restraining the push button shaft and the heart-shaped receiving groove, and FIG. 15 is a sectional view taken along the line J--I in FIG. 14. It is a sectional view taken along the J line. FIG. 16 is a sectional view when the slide switch is turned on while the pushbutton switch is in the on state, and the off operation of the pushbutton switch is prohibited. FIG. 17 is a sectional view when the pushbutton switch is prohibited from being turned on while the pushbutton switch is in the off state. part, 4...key, 5...rotor, 6...lock unit, 711. Push button shaft accommodating part, 8... Movable contact piece of push button switch, 9... Case rear wall part, 10.11
...Fixed contact piece of pushbutton switch, 12... Spring for urging return of pushbutton shaft, 13... Pushbutton shaft, 14.
... Movable contact piece of slide switch, 15 ... Rear end surface of push button shaft 16 ... Tip of main slider, 17.1
8...Fixed contact piece of slide switch, 19-Main slider 20...Sliding biasing spring for sub-slider, 21-
... Traction part on the main slider side, 22... Stop part on the sub-slider side, 23... Tip part of the sub-slider, 24-
・・Side surface of the push button shaft, 25 ・・Sub-slider 52・
... Spring for supporting the movable contact piece, 61 ... Lock pin, 6
3...Heart-shaped receiving groove, 66...Lock pin is pressed by spring

Claims (1)

[Claims] A lock unit 6 is housed and fixed in a lock housing part 3 formed on the front wall part 2 of the case 1, and a rotor 5 is rotated by a key 4; It is slidably guided and accommodated in the button shaft accommodating portion 7, and the rear end carries a movable contact piece 8 of the pushbutton switch, and the movable contact piece 8 is moved to the fixed contact piece of the rear wall portion 9 of the case 1 by pushing and sliding. 10 and a push button shaft 13 which is restrained in the on position where it abuts against the fixed contact piece 11, and when pressed again in the on position, the restraint is released and the push button shaft 13 returns to the off position by a spring 12; the front wall of the case 1; It is slidably accommodated between the part 2 and the rear wall part 9, and carries the movable contact piece 14 of the slide switch;
The push button shaft 1 is rotated by the rotation of the rotor 5 of the lock unit 6.
3, and when the tip 16 enters the space between the rear end surface 15 of the push button shaft 13 and the case rear wall 9, which are in the ON or OFF position, the movable contact piece 14 of the slide switch moves toward the rear of the case. A main slider 19 abuts against the fixed contact piece 17 and the fixed contact piece 18 of the wall portion 9; is slidably guided and accommodated on the front side of the main slider 19, and is pressed against the push button shaft 1 by a spring 20.
When the stop part 22 is pressed against the traction part 21 on the main slider 19 side by sliding in the direction of 3 and the push button shaft 13 is in the OFF position, the tip part 23 is pushed against the tip part 1 of the main slider 19.
The sub slider 25 enters the space between the rear end surface 15 of the push button shaft 15 and the case rear wall 9 together with the slider 6, and the tip 23 of the sub slider 25 comes into contact with the side surface 24 of the push button shaft 13 when the push button shaft 13 is in the on position. A multi-function key switch device consisting of.