TWI541849B - Block the keyboard - Google Patents

Description

Resistance keyboard

The invention relates to a keyboard, in particular to a pressure-resistant keyboard.

In recent years, touch-type electronic devices have become popular. In addition to common tablet computers and smart phones, traditional notebook computers have gradually introduced the concept of touch-based operation. However, no matter what kind of touch-type electronic devices, There is a need to use traditional keyboard input.

Usually, such a device that combines touch and keyboard input must allow the user to switch between the touch screen and the keyboard input. However, when the user performs a touch operation, the multi-mode input system instead It is easy for the user to accidentally touch the button and cause input errors and the like. Therefore, temporarily blocking the keyboard function to prevent the user from accidentally touching the button in the non-keyboard input state has become a design problem in the field.

The TWM380528 patent discloses a button locking mechanism for stopping the pressing stroke of a button. Under the button to be stopped, a latching member, a stopper, and a direction toward the button are pushed. a first elastic member of the stopper and a second elastic member that is biased against the latch member, the latch member being movable relative to the button between a stop position and a release position, wherein the stop position The stop member mounted on the latch member is located below the button and blocks the button from being depressed. In the release position, the stop member is mounted under the button, and the first elastic member provides an elastic force to Latch The piece is in the release position. When the latch member is driven by an external force such as a computer lock and moved to the stop position, the button can be blocked from being pressed down by the stopper.

Such a single button uses a complex pressure-reducing mechanism, a large number of parts, and takes up space. The design requirement is for a power button, and is not suitable for a keyboard system with a large number of buttons. Therefore, how to design a better solution to prevent Pressing all the keys on the keyboard is still an unsolved problem.

Accordingly, it is an object of the present invention to provide a resistive keyboard that can block all button presses at once.

Therefore, the pressure-resistant keyboard of the present invention comprises a keyboard module and a pressure-proof unit.

The keyboard module includes a bottom plate, a circuit board disposed on the bottom plate and including a plurality of spaced switches, and a plurality of button units respectively disposed above the switches, wherein the button units each have a bottom plate disposed on the bottom plate a lifting mechanism, and a key cap connected to the lifting mechanism, wherein the key caps are respectively movable relative to the circuit board in a pressing direction between a contact position and a non-contact position, and in the contact position, the keys The caps can respectively approach and compress the lifting mechanisms toward the board to actuate corresponding switches, and in the non-contact position, the keycaps are respectively supported by the lifting mechanisms to be spaced apart from the switches.

The pressure-restricting unit comprises a pressure-resistant frame which is substantially in the shape of a plate and is disposed on the circuit board, and a plurality of pressure-restricting members which are disposed at intervals of the pressure-proof frame, and the pressure-resistant frame has a plurality of respectively for the lifting mechanism. perforation.

Wherein the pressure-reducing unit is movable between a resistive position and a use position, wherein the resistive member abuts against at least one of the keycap and the lifting mechanism, The keycaps are respectively limited to the non-contact position, and in the use position, the pressure-reducing members are respectively spaced apart from the keycaps and the lifting mechanisms to allow the keycaps to be respectively moved to the contact position.

The effect of the present invention is that when the pressure-resisting unit is in the pressure-reducing position, the pressure-resisting members respectively abut against at least one of the keycaps and the lifting mechanisms, thereby limiting the keycaps respectively Located in the non-contact position, the function of preventing all the key caps from moving down once is not only simple in structure, low in cost, but also convenient in operation.

1‧‧‧Sheet unit

2‧‧‧ keyboard module

21‧‧‧Sliding hook

22‧‧‧floor

221‧‧‧Travel card

222‧‧‧Travel limit wall

223‧‧‧frame limit wall

23‧‧‧ switch

24‧‧‧ boards

3‧‧‧Resistance unit

31‧‧‧ resistance frame

311‧‧‧Perforation

312‧‧‧Travel hole

32‧‧‧Resistance parts

321‧‧‧Compressive Action Department

322‧‧‧Slip-action department

4‧‧‧Operating unit

5‧‧‧Key unit

51‧‧‧ Lifting mechanism

52‧‧‧Key Cap

53‧‧‧Resistance and follow-up

54‧‧‧First support frame

541‧‧‧First pivotal

542‧‧‧First sliding part

55‧‧‧second support frame

551‧‧‧Second pivotal

552‧‧‧Second sliding part

56‧‧‧Flexible parts

A‧‧‧ pivot

M‧‧‧ screen

O‧‧‧Operation direction

P‧‧‧Press direction

The other features and advantages of the present invention will be apparent from the detailed description of the preferred embodiments of the invention. FIG. 1 is a perspective exploded view of a preferred embodiment of the pressure-resistant keyboard of the present invention; 3 is a front elevational view of the preferred embodiment; FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3; and FIG. 5 is a cross-sectional view taken along line VV of FIG. Figure 6 is a view similar to Figure 5; Figure 7 is a view similar to Figure 5; and Figure 9 is a schematic view of the preferred embodiment.

For convenience of description, the key configuration in the following description is only for illustration. In the actual application product, a standard keyboard configuration or a special specification keyboard configuration may be adopted according to different usage requirements.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a preferred embodiment of the pressure-resistant keyboard of the present invention comprises a housing unit 1 , a keyboard module 2 , a pressure-proof unit 3 and an operating unit 4 . The housing unit 1 is provided for the keyboard module 2 and the pressure-proof unit 3 and the operating unit 4.

The keyboard module 2 includes a bottom plate 22 having a plurality of sliding hooks 21, A circuit board 24 disposed on the bottom plate 22 and including a plurality of spaced-apart switches 23, and a plurality of button units 5 respectively disposed above the switches 23.

The bottom plate 22 has a plurality of stroke hooks 221, each of which has a travel limiting wall 222 extending upward from the bottom plate 22, and is coupled to the limiting wall 222 and parallel to the bottom plate 22 The frame limiting wall 223 of the pressure-rejecting unit 3 is held.

Each of the button units 5 has a lifting mechanism 51 disposed on the bottom plate 22, a key cap 52 connected to the lifting mechanism 51, and a pressure-reducing follower 53 disposed on the bottom surface of the keycap 52. In this embodiment, the pressure-reducing followers 53 are protrusions protruding from the bottom surface of the key caps 52, respectively.

Each lifting mechanism 51 has a first supporting frame 54, a second supporting frame 55, and an elastic member 56 (such as the Rubber Dome commonly used in the industry) disposed between the key cap 52 and the circuit board 24.

Each of the first support frames 54 has a first pivoting portion 541 pivotally connected to the corresponding key cap 52 and a first sliding portion 542 of the sliding hook 21 disposed on the bottom plate 22 . Each of the second support frames 55 has a second pivoting portion 551 pivotally connected to the bottom plate 22 and located under the corresponding first pivoting portion 541, and is slidably assembled to the corresponding keycap 52 and The second sliding portion 552 is located above the corresponding first sliding portion 542.

Referring to FIG. 5 and FIG. 6, the key caps 52 are respectively movable in a pressing direction P relative to the circuit board 24 between a contact position and a non-contact position. In the contact position, the key caps 52 can respectively Approaching and compressing the lifting mechanism 51 toward the circuit board 24 to actuate the corresponding switch 23, in the non-contact position, the key caps 52 are respectively supported by the elastic members 56 of the lifting mechanism 51 and the switches 23 phase intervals.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the pressure-restricting unit 3 includes a pressure-resistant frame 31 which is substantially in the shape of a plate and is disposed on the circuit board 24 and is clamped by the frame limiting wall 223 . The pressure-retaining member 32 of the pressure-resistant frame 31. The pressure-resistant frame 31 has a plurality of through holes 311 for receiving the lifting mechanisms 51, and a plurality of stroke holes 312 for respectively extending the stroke hooks 221 . In this embodiment, the stroke holes 312 are respectively through holes.

The pressure-reducing members 32 respectively have a pressure-reducing action portion 321 disposed on the top surface of the pressure-resistant frame 31 and matched with the corresponding pressure-reducing follower portion 53 , and a sliding action provided on the pressure-resistant frame 31 Part 322. In the embodiment, the pressure-reducing actuation portions 321 are respectively arc walls protruding from the pressure-barrier frame 31.

Referring to FIG. 2, FIG. 4 and FIG. 7, the pressure-resistant frame 31 of the pressure-rejecting unit 3 is movable between a resisting position and a use position in an operating direction O perpendicular to the pressing direction P. The travel limit wall 222 of the stroke hook 221 abuts against the opposite ends of the stroke hole 312 in the operation direction O when the pressure-resisting position and the use position respectively, thereby limiting the pressure-resistant frame 31 along The movement stroke of the operation direction O.

Referring to FIG. 7 and FIG. 8 , in the pressure-resisting position, the pressure-resistant members 32 abut against at least one of the key caps 52 and the lifting mechanisms 51, and the key caps 52 are respectively limited to the Contact location. In the present embodiment, the pressure-reducing members 32 simultaneously abut the key caps 52 and the lifting mechanisms 51, wherein the pressure-reducing actuation portions 321 abut against the lower portions of the key caps 52, respectively. The resisting portions 53 are respectively pressed against the first sliding portions 542 to fix the lifting mechanisms 51 to position the key caps 52 in the non-contact position.

In particular, although in the present embodiment, the resistive members are The pressure-reducing portion 321 and the anti-slip actuators 322 are simultaneously abutted against the key cap 52 and the lifting mechanism 51, but it can be understood that the pressure-resistant members 32 can also be separately disposed. The pressure-reducing actuation portion 321 prevents the keycaps 52 from being depressed, or separately provides the anti-slip actuation portion 322 to prevent the first sliding portions 542 from sliding, thereby preventing the lifting mechanisms 51 from being compressed.

Referring to FIG. 4, FIG. 5 and FIG. 6, in the use position, the The equal pressure blocking member 32 is spaced apart from the key caps 52 and the lifting mechanism 51, and the pressure-reducing actuating portions 321 are respectively away from the pressure-reducing follower portions 53 respectively. The first sliding portion 542 is waited to allow the keycaps 52 to respectively compress the lifting mechanisms 51 to move to the contact position.

Referring to Figure 9, Figure 10 illustrates the use of a pivot The axis A and the screen M constitute a portable electronic device. The operating unit 4 is disposed on the housing unit 1 and can drive the pressure-resistant frame 31 to move to the pressure-restricting position. In this embodiment, the operating unit 4 a connecting rod piece pivotally connected to the housing unit 1 and capable of converting an input force source perpendicular to the operating direction O into a linear motion along the operating direction O, by designing a rotational motion to convert a straight line at the pivot A a moving transmission mechanism (not shown), the input force source can be generated when the user performs a screen folding operation, and simultaneously drives the pressure blocking frame 31 to move to the pressure-proof position along the operating direction O, thereby avoiding the user's The hand inverts the keycap 52 located on the back of the screen. However, it can be understood that the operating unit 4 can also be designed as a toggle switch exposed to the housing unit 1 for the user to directly switch the position of the pressure-resistant frame 31.

In summary, the present invention utilizes the pressure-rejecting unit 3 at the resistive pressure In the position, the pressure-receiving members 32 respectively abut the key caps 52 and the lifting mechanisms 51, thereby respectively limiting the key caps 52 to the non-contact position. The effect of preventing all the key caps 52 from moving down at one time is not only simple in structure, low in cost, but also convenient in operation, so that the object of the present invention can be achieved.

It is worth mentioning that the present invention can be applied as shown in the embodiment. As the lifting mechanism 51, a Scissor structure can also be used in a cantilever design.

A typical cantilever keyboard will have one of the key caps 52 The side edges are respectively connected to the key cap frame, and rubber or metal elastic members 56 are disposed under each of the key caps 52, and the switches 23 are actuated by pressing the free swing ends of the key caps 52.

In a cantilever-type resistive pressure keyboard, you only need to set the resistance The actuating portion 321 is located at the free swing end of the key caps 52 when the pressure-reducing actuation portion 321 is in the pressure-resisting position, and is away from the free swing end of the key caps 52 in the use position, thus It can achieve the effect of preventing all the key caps 52 from being biased down.

However, the above is only the preferred embodiment of the present invention. The scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the present invention in the scope of the invention and the scope of the patent specification are still within the scope of the invention.

1‧‧‧Sheet unit

2‧‧‧ keyboard module

21‧‧‧Sliding hook

22‧‧‧floor

221‧‧‧Travel card

23‧‧‧ switch

24‧‧‧ boards

3‧‧‧Resistance unit

31‧‧‧ resistance frame

311‧‧‧Perforation

312‧‧‧Travel hole

32‧‧‧Resistance parts

321‧‧‧Compressive Action Department

322‧‧‧Slip-action department

4‧‧‧Operating unit

5‧‧‧Key unit

51‧‧‧ Lifting mechanism

52‧‧‧Key Cap

54‧‧‧First support frame

55‧‧‧second support frame

56‧‧‧Flexible parts

Claims (9)

A resistive keyboard includes: a keyboard module, comprising a bottom plate, a circuit board disposed on the bottom plate and including a plurality of spaced switches, and a plurality of button units respectively disposed above the switches, the button units Each has a lifting mechanism disposed on the bottom plate, a key cap connected to the lifting mechanism, and a pressure-reducing follower disposed on a bottom surface of each of the key caps, wherein the key caps are respectively opposite to the circuit in a pressing direction The plate is moved between a contact position and a non-contact position, wherein the key caps are respectively adjacent to the circuit board and compressing the lifting mechanisms to actuate the corresponding switches, in the non-contact position, The keycaps are respectively supported by the lifting mechanisms and spaced apart from the switches; and a pressure-proof unit includes a pressure-resistant frame which is substantially plate-shaped and disposed on the circuit board, and the plurality of intervals are disposed at the resistance a pressure-resistant member of the frame, the pressure-resistant frame has a plurality of perforations respectively for receiving the lifting mechanism, and the pressure-proof members of the pressure-proof unit respectively have a top surface disposed on the pressure-resistant frame and corresponding to the pressure resistance Matching a pressure-reducing actuator; wherein the pressure-reducing unit is movable between a pressure-resisting position and a use position, and in the pressure-resisting position, the pressure-reducing actuators respectively abut against the underside of the keycaps a pressure-retaining follower, wherein the keycaps are respectively restricted to the non-contact position, and in the use position, the pressure-reducing actuation portions are respectively away from the pressure-reducing followers to allow the keycaps to move separately To the contact location. The pressure-resistant keyboard of claim 1, wherein the pressure-resistant frame is movable between the pressure-damping position and the use position in an operation direction perpendicular to the pressing direction. The resistive pressure keyboard of claim 2, wherein the pressure-reducing actuation portions of the pressure-restricting unit are respectively disposed on the arc wall of the pressure-resistant frame, and the pressure-reducing followers are respectively protruded from the keys The bump on the bottom of the cap. The pressure-resistant keyboard of claim 2, wherein the pressure-proof members of the pressure-reducing unit further have a sliding-sliding actuation portion disposed on the pressure-resistant frame, each lifting mechanism having a first support frame, and a An elastic member disposed between the keycap and the circuit board, each of the first support frames has a first pivoting portion pivotally connected to the corresponding keycap, and a set of first sliding portions disposed on the bottom plate. The bottom plate has a plurality of sliding hooks respectively mounted on the first sliding portions, and in the pressure blocking position, the sliding sliding actuating portions respectively abut the first sliding portions to fix the lifting mechanisms, thereby The keycaps are located at the non-contact position, and in the use position, the anti-slip actuators are respectively away from the first sliding portions to allow the keycaps to respectively compress the lifting mechanisms to move to the contacts position. The pressure-resistant keyboard of claim 4, wherein each lifting mechanism of the keyboard module further has a second supporting frame, and each of the second supporting frames has a first pivoting connection to the bottom plate and corresponding to the first a second pivoting portion below the pivoting portion, and a second sliding portion slidably disposed on the corresponding keycap and located above the corresponding first sliding portion. The pressure-resistant keyboard of claim 1, further comprising a housing unit for the keyboard module and the pressure-restricting unit, and a housing unit and driving the pressure-resistant frame to move to the resistor The operating unit in the pressed position. The keyboard of claim 1 , wherein the pressure-resistant frame of the pressure-proof unit further has a plurality of stroke holes, and the pressure-resistant frame can be in a direction perpendicular to the pressing direction. Moving between the pressing position and the use position, the bottom plate has a plurality of stroke hooks respectively extending through the stroke holes, and the stroke hooks are respectively abutted against the stroke holes when the stroke position and the use position are respectively The opposite ends of the direction of operation. The keyboard of claim 7 is capable of preventing the keycap from being pressed down, wherein the stroke holes of the pressure-proof unit are respectively through-holes, and each of the stroke hooks has a travel limit wall extending upward from the bottom plate. And a frame limiting wall connected to the limiting wall and parallel to the bottom plate and clamping the pressure-resistant frame. A resistive pressure keyboard comprising: A keyboard module includes a bottom plate, a circuit board disposed on the bottom plate and including a plurality of spaced-apart switches, and a plurality of button units respectively disposed above the switches, wherein the button units each have a bottom plate disposed on the bottom plate a lifting mechanism, and a keycap connected to the lifting mechanism, each lifting mechanism has a first supporting frame, a second supporting frame, and an elastic member disposed between the keycap and the circuit board, each The first support frame has a first pivoting portion pivotally connected to the corresponding keycap, and a set of first sliding portions disposed on the bottom plate, each of the second support frames having a pivotal connection to the bottom plate and located in the phase Corresponding to a second pivoting portion below the first pivoting portion, and a second sliding portion slidably disposed on the corresponding keycap and located above the corresponding first sliding portion, the bottom plate has a plurality of separate portions The first sliding portion is mounted with a sliding hook, wherein the key caps are respectively movable relative to the circuit board in a pressing direction between a contact position and a non-contact position, and in the contact position, the key caps can respectively Approach and compress the board toward the board The lifting mechanism is configured to actuate a corresponding switch, wherein the keycaps are respectively supported by the lifting mechanism and spaced apart from the switches; and a pressure-proof unit includes a substantially plate-shaped and disposed on the circuit a pressure-resistant frame on the board, and a plurality of pressure-blocking members disposed at the pressure-retaining frame, the pressure-resistant frame has a plurality of perforations respectively for the lifting mechanism, and the pressure-barrier members of the pressure-proof unit respectively have a setting The anti-slip actuation portion of the pressure-resistant frame; wherein the pressure-proof unit is movable between a pressure-resisting position and a use position, and in the pressure-resisting position, the anti-slip actuation portions respectively abut the first a sliding portion for fixing the lifting mechanism to position the key caps in the non-contact position, wherein in the use position, the sliding-sliding actuation portions are respectively away from the first sliding portions to allow the keys The cap can be separately moved to the contact position by compressing the lifting mechanisms.