CN201042002Y - No contact pull pole electronic device input keyboard - Google Patents
No contact pull pole electronic device input keyboard Download PDFInfo
- Publication number
- CN201042002Y CN201042002Y CNU2006201241006U CN200620124100U CN201042002Y CN 201042002 Y CN201042002 Y CN 201042002Y CN U2006201241006 U CNU2006201241006 U CN U2006201241006U CN 200620124100 U CN200620124100 U CN 200620124100U CN 201042002 Y CN201042002 Y CN 201042002Y
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- China
- Prior art keywords
- pull bar
- drawbar
- button
- change over
- over switch
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Abstract
The utility model discloses a contact-free drawbar type electronic device inputting keyboard, which comprises a key cap, a key drawbar, a support frame, a drawbar axle, drawbar limiting plates, a mechanical-contact-free electromechanical switch and a signal processing circuit, wherein, the key cap is arranged at the tail end of the key drawbar; the drawbar is a long-strip-shaped flake body; the drawbar is provided with a drawbar axle hole at the front part. The drawbar axle is passed through the drawbar axle hole and fixed on the support frame by two ends. The drawbar limiting plates are plate bodies with grating slits, and respectively arranged at the front and the rear sides of the drawbar axle; the key drawbar passes respectively through the grating slits of the two plate bodies. The mechanical-contact-free electromechanical switch is a photoelectric switch, an electromagnetic switch, an inductance-type switch or a capacitance-type switch arranged at the front end of the drawbar. The utility model, due to adoption of drawbar transmission and mechanical-contact-free electromechanical conversion mode, thereby overcomes the defect of large noise production of mechanical-contact switches.
Description
Technical field
The utility model relates to a kind of electronic equipment input keyboard, and particularly the rod-pulling type electronic equipment input keyboard of a kind of nothing of low noise machinery contact is mainly used in fields such as typewriter, stenographic machine.
Background technology
Existing electronic equipment input keyboard has common computer keyboard, and it is the keyboard of a reference format, is used for one of input equipment as computer.In addition, needs at different occasions, people have developed many keyboard specials, and as electronic typewriter keyboard special, electronics stenographic machine keyboard special, electronic musical instrument keyboard special etc., the key number of these keyboards and layout type do not re-use the form of QWERTY keyboard.
As be used for the keyboard special of typewriter and stenographic machine, and generally be the button that lesser amt is set, use special keyboard-coding method, as long as can satisfy the input function of literal.But the conduction mode of this keyboard generally all is the mechanical contact change over switch, and this mechanical contact can cause bigger noise.And the occasion of using for stenographic machine and typewriter, the general use on the court judgment record, on the record of convention, perhaps on primary personage's the memcon, these occasions for noise be should avoid as far as possible or reduce as far as possible.And existing stenographic machine with mechanical contact is in the shorthand operation, because the existence of mechanical switch contact, the noise that causes " chuckleing " is unescapable, and this causes bad impression can for leading figure, court's method official rank, thereby is necessary to improve.
The noise that produces for the mechanical contact that reduces keyboard, people have developed induction type distributed capacitance keyboard again, and this keyboard does not have mechanical contact, are by finger and the signal of telecommunication that changes by changes in capacitance after the key contacts, thereby do not have noise yet, as using on touch-screen.But the defective of this distributed capacitance formula keyboard is that sensitivity is low, and the speed of setting each other off is slow, can not be fit to the fast requirement of response speed of stenographic machine and typewriter requirement.
The button rod-pulling type structure of using with reference to traditional machinery typewriter again, button itself can't produce noise, pull bar also is difficult for producing noise because what use is a connected mode, is that letter disk is grabbed in word, the typewriting process and produced so traditional machinery typewriter produces the reason of noise.
If the pull bar traditional structure of traditional mechanical typewriter is combined with the dynamo-electric transformational structure of the nothing machinery contact in modern times, and then produces a kind of electronic equipment input keyboard that does not have mechanical contact rod-pulling type, just can be good at overcoming the generation of noise.
The utility model content
The purpose of this utility model is to provide a kind of no mechanical contact rod-pulling type electronic equipment input keyboard, thereby with the combining of mechanical pull bar keyboard and electronic commutator, realizes the minimized purpose of knocking noise.
Contactless rod-pulling type electronic equipment input keyboard of the present utility model comprises button keycap, button pull bar, bracing frame, pull rod shaft, pull bar limiting plate, the dynamo-electric change over switch of no mechanical contact and signal processing circuit.Described button keycap is arranged on the tail end of button pull bar, and pull bar is flat strip lamellar body, and forward position is provided with the pull bar axis hole on the pull bar.Described pull rod shaft is passed the pull bar axis hole, and two ends are fixed on the bracing frame.Described pull bar limiting plate is the plate body with grid seam, in the both sides, front and back of pull rod shaft one limiting plate is set respectively, and the button pull bar passes the grid seam of two plate bodys respectively.The dynamo-electric change over switch of described no mechanical contact is arranged on the front end of pull bar.
The downside of above-mentioned described button pull bar is provided with a downward extended salient point, is provided with elastic steel sheet corresponding to the bracing frame of this salient point position, and this elastic steel sheet is close to the setting of pull bar salient point; Described button pull bar upside is provided with one and extends upward the right preceding spacing bayonet socket that bends, and is provided with a gag lever post in this spacing bayonet socket, and the two ends of gag lever post are fixed on the bracing frame.
Can be provided with rubber shock-absorbing sleeve on the gag lever post that is provided with in the above-mentioned described spacing bayonet socket, the fixing position of the two ends of this gag lever post and bracing frame also can be provided with the yielding rubber pad.
Between the plate body of above-mentioned described two limiting plates and the both sides, front and back of pull rod shaft all are coated with lubricating grease.
Above-mentioned described button keycap, button pull bar, the dynamo-electric change over switch of no mechanical contact respectively be most each, and number is identical, the number that the grid that are provided with on the limiting plate stitch the also number with above-mentioned button pull bar is identical.
The dynamo-electric change over switch of above-mentioned described no mechanical contact can be the photoelectric type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with photoelectric conversion device, this photoelectric conversion device includes light-emitting device and receiving system, the movable foremost noncontact of described pull bar is arranged between the light-emitting device and receiving system of this photoelectric conversion device, and is in release and blocks two states; This photoelectric conversion device is electrically connected with signal processing circuit.
The dynamo-electric change over switch of above-mentioned described no mechanical contact can be the electromagnetic type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with the hall device conversion equipment, described pull bar be set with permanent magnetic sheet foremost, pull bar foremost permanent magnetic sheet and hall device be near and away from two states; This hall device is electrically connected with signal processing circuit.
The dynamo-electric change over switch of above-mentioned described non-contact type can be the inductance type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with the miniature inductance coil, the armature that is set with bending foremost of described pull bar is between this armature and the miniature inductance coil and inserts and the extraction two states; This miniature inductance coil is electrically connected with signal processing circuit.
The dynamo-electric change over switch of above-mentioned described no mechanical contact can be the condenser type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with the fixed capacity pole piece, described pull bar be provided with the movable electric capacity pole piece corresponding foremost with the fixed capacity pole piece, be between this activity electric capacity pole piece and the fixed capacity pole piece and insert and extract two states out; The electric capacity pole piece of this micro capacitance is electrically connected with signal processing circuit.
Above-mentioned described electronic equipment input keyboard can be electronics stenographic machine keyboard, electronic typewriter keyboard, electronic music instrument keyboard one of them.
Because the utility model has used the dynamo-electric conversion regime of pull bar transmission and no mechanical contact, has overcome traditional big defective of mechanical contact change over switch noise, be fit to more to use on the typewriter of needs reduction noise and stenographic machine and use.
Description of drawings
Fig. 1 is a kind of embodiment keyboard stereochemical structure front schematic view of the present utility model;
Fig. 2 is a kind of embodiment keyboard stereochemical structure schematic rear view of the present utility model;
Fig. 3 is a keyboard Tiebar structure schematic diagram of the present utility model;
Fig. 4 is a keyboard converting device structure enlarged diagram of the present utility model;
Fig. 5 is a photoelectric conversion device structural representation of the present utility model;
Fig. 6 is an electromagnetic switching device structural representation of the present utility model;
Fig. 7 is an inductance conversion device structure schematic diagram of the present utility model;
Fig. 8 is an electric capacity conversion device structure schematic diagram of the present utility model.
Embodiment
The utility model is a kind of rod-pulling type electronic equipment input keyboard that does not have mechanical contact, as shown in Figure 1, is the keyboard stereochemical structure front schematic view of a kind of embodiment of the present utility model;
Fig. 2 is the reverse side structural representation.
As shown in Figure 1, Chinese stenographic machine with 24 groups of keys is that example describes, each button of the keyboard of the utility model embodiment all is made up of several parts, and each key includes a button keycap 1, a button pull bar 12 and the dynamo-electric change over switch 5 of no mechanical contact.
As shown in Figure 4, button pull bar 12 is a strip lamellar body, has a pull bar axis hole 18, pull bar front end 17, pull bar downside salient point 15, pull bar upside bayonet socket 20 and back end of tie rod 21.
Wherein the bayonet socket 20 of pull bar upside is itself to extend upward the back by pull bar 12 also to be bent to form forward, and 1 of the keycap of button is arranged on the rear end 21.This integral body button pull bar 12 is integrated punching moulding.
As shown in Figure 1, the pull bar axis hole 18 of the button pull bar 12 of described 24 groups of buttons is located on the pull rod shaft 9 jointly, the two ends of pull rod shaft 9 then are fixed on the bracing frame 4, thereby are that the front end 17 and the rear end 20 of pull bar 12 can be that rotate within the specific limits in the axle center with pull rod shaft 9.When pressing keycap 1, carry on 17 of the front ends of pull bar 12 are corresponding.
For keeping the located lateral of button pull bar 12, in the front side of pull rod shaft 9 pull bar limiting plate 7 is set, rear side is provided with pull bar limiting plate 11, this two limiting plate is the plate body with grid seam 8 that is positioned at both sides, pull rod shaft 9 front and back, each button pull bar 12 correspondence is passed the grid seam 8 of corresponding limiting plate, limits laterally moving of pull bar with this grid seam 8.
As shown in Figure 2, the downside salient point 15 of each button pull bar 12 extends downwards, and on bracing frame 4, be provided with elastic steel sheet 16 to position that should salient point 15, and make this elastic steel sheet 16 be close to salient point 15 and be provided with, be used for elastic recovery device as button pull bar 12.
As shown in Figure 1, be horizontally arranged with gag lever post 2 in the position by the rear end of bracing frame 4, the two ends of this gag lever post 2 are fixedly installed on the bracing frame 4, and are arranged with rubber crash roll 13 on this gag lever post 2.The bayonet socket 19 of each button pull bar 12 upside then is stuck in the outside of gag lever post 2 and has certain space, its objective is to guarantee that button pull bar 12 has certain up and down scope.
The elastic recovery device of button pull bar 12 has not only comprised the elastic steel sheet 16 that is arranged on bracing frame 4 bottoms, also comprise a unified elastic recovery device 14, this elastic recovery device 14 is for being arranged on the horizontal steel plate of button pull bar 12 by rear end, steel plate is provided with beam, the two ends of steel plate are fixedly installed on the support 10, and support 10 is arranged on the two ends of pull rod shaft 9 by spring assembly.The purpose that this unified elastic recovery device 14 is set is to guarantee that all button pull bars all can be in unified initial condition all the time.
As shown in Figure 1, outstanding feature of the present utility model is the electromechanical transformation apparatus 5 that is provided with no mechanical contact at the front end of this button pull bar 12.A part of parts of this electromechanical transformation apparatus 5 are fixed on the circuit board 6 that laterally is vertically set on the bracing frame 4, so that be electrically connected with the signal processing circuit of keyboard, another part then is arranged on the front end 17 of button pull bar 12.And this electromechanical transformation apparatus 5 has multiple structure and the mode of being provided with.
As Fig. 4, conversion equipment shown in Figure 5 is a kind of photoelectric conversion device, front end at bracing frame is provided with vertical transverse circuit plate 6, circuit board 6 is provided with the electromechanical transformation apparatus identical with number of keys 5, this electromechanical transformation apparatus 5 is a photoelectric conversion device, constitute by light source 21 and receiving system 22, between light source 21 and receiving system 22, form light path.And every group of electromechanical transformation apparatus 5 is all corresponding to the front end 17 of a button pull bar 12, this moment with the front end 17 of button pull bar 12 between light source 21 and receiving system 22, and block and discharge two states, thereby realize the effect of switch by pushing of keycap 1 realized front end 17 is in photoelectric conversion device.This photoelectric conversion device is connected to signal processing circuit, just the push action to button can be converted to the corresponding button signal of telecommunication.Need not mechanical contact, thereby reduced the noise of Mechanical Contact.
Conversion equipment as shown in Figure 6 is a kind of hall device conversion equipment, utilization be the electromagnetic induction principle of hall device.Front end at bracing frame 4 is provided with vertical transverse circuit plate 6, and circuit board 6 is provided with the electromechanical transformation apparatus identical with number of keys 5, and this electromechanical transformation apparatus 5 is the hall device conversion equipment.This hall device conversion equipment is made of hall device 23 and magnetic sheet 24.Wherein and every group of hall device conversion equipment all corresponding to the front end 17 of a button pull bar 12, be arranged to have the structure of permanent magnetic sheet 24 with the front end of button pull bar 12 this moment, and be between permanent magnetic sheet 24 by pushing of keycap 1 being realized front end 17 and the hall device 23 away from near two states, thereby realize the effect of switch.This hall device conversion equipment is connected to signal processing circuit, just the push action to button can be converted to the corresponding button signal of telecommunication.Need not mechanical contact, thereby reduced the noise of Mechanical Contact.
Be the contactless electromechanical transformation apparatus of a kind of inductance type as shown in Figure 7, front end at bracing frame 4 is provided with vertical transverse circuit plate 6, circuit board 6 is provided with the electromechanical transformation apparatus identical with number of keys 5, this electromechanical transformation apparatus 5 is the miniature inductance conversion equipment, constitute by miniature inductance coil 25 and armature 26, wherein this inductance coil 25 is fixedly installed on the wiring board 6, coil axis is vertical state, the armature 26 of this moment then is fixedly installed on the front end 17 of button pull bar 12 (not drawing among the figure), and insert and extract out two states, thereby realize the effect of switch by pushing of keycap 1 being realized be between this armature 26 and the inductance coil 25.This inductance conversion equipment is connected to signal processing circuit, by detecting the variation of inductance value, just the push action to button can be converted to the corresponding button signal of telecommunication.Need not mechanical contact, thereby reduced the noise of Mechanical Contact.
As shown in Figure 8 be a kind of capacitive contactless electromechanical transformation apparatus, front end at bracing frame 4 is provided with vertical transverse circuit plate 6, circuit board 6 is provided with the electromechanical transformation apparatus identical with number of keys 5, these electromechanical transformation apparatus 5 condenser type conversion equipments, constitute by capacitor fixing pole piece 27 and the movable pole piece of electric capacity (not drawing), wherein this fixed capacity pole piece 27 is fixedly installed on the wiring board 6, electric capacity pole piece 27 is the vertical state that stretches out with circuit board, the movable electric capacity pole piece of this moment then is fixed on the front end 17 of button pull bar accordingly, and be between movable electric capacity pole piece by pushing of keycap 1 being realized front end and the fixed capacity pole piece 27 and insert and extract out two states, thereby form a kind of two states of variable capacitance, realize the effect of switch.This electric capacity conversion equipment is connected to signal processing circuit, by detecting the variation of capacitance, just the push action to button can be converted to the corresponding button signal of telecommunication.Need not mechanical contact, thereby reduced the noise of Mechanical Contact.
For reducing the noise and the transmission loss of above-mentioned button pull bar mechanical driving part of the present utility model, between front limit plate 7 and rear position margining plate 11, be provided with base plate, thereby form a kind of structure of slot type, this slot type structure is surrounded pull rod shaft 9, in this slot type structure, be coated with lubricating grease again, with the flexible and minimizing noise of guaranteeing to rotate.
Keyboard of the present utility model in use, button keycap 1 is arranged on the rear end of button pull bar 12, and be the arranged of certain rule, after depressing corresponding button keycap 1 when press...withing one's finger, pull bar 12 can serve as that axle carries out lever-type action with pull rod shaft 9 just, and the front end 17 of pull bar 12 is upwards mentioned.The electromechanical transformation apparatus 5 of this moment can produce a signal that is different from normality because of the change in location of the front end 17 of pull bar 12, sends out by signal processing circuit, forms push button signalling.The conversion of this dynamo-electric change over switch by no mechanical contact can be moved keystroke the contactless signal of telecommunication that is converted to, and has reduced the noise of mechanical contact generation.
When this keyboard used on stenographic machine, typewriter, as seen noise was reduced to the state of ignoring, and influenced the state and the mood of court never again because of keystroke " chuckleing " sound, brought offending sensation also can for leading figure's speech.
Claims (10)
1. a contactless rod-pulling type electronic equipment input keyboard is characterized in that: comprise button keycap, button pull bar, bracing frame, pull rod shaft, pull bar limiting plate, the dynamo-electric change over switch of no mechanical contact and signal processing circuit; Described button keycap is arranged on the tail end of button pull bar, and pull bar is flat strip lamellar body, and forward position is provided with the pull bar axis hole on the pull bar; Described pull rod shaft is passed the pull bar axis hole, and two ends are fixed on the bracing frame; Described pull bar limiting plate is the plate body with grid seam, in the both sides, front and back of pull rod shaft one limiting plate is set respectively, and the button pull bar passes the grid seam of two plate bodys respectively; The dynamo-electric change over switch of described no mechanical contact is arranged on the front end of pull bar.
2. contactless rod-pulling type electronic equipment input keyboard according to claim 1, it is characterized in that: the downside of described button pull bar is provided with a downward extended salient point, bracing frame corresponding to this salient point position is provided with elastic steel sheet, and this elastic steel sheet is close to the setting of pull bar salient point; Described button pull bar upside is provided with one and extends upward the right preceding spacing bayonet socket that bends, and is provided with a gag lever post in this spacing bayonet socket, and the two ends of gag lever post are fixed on the bracing frame.
3. contactless rod-pulling type electronic equipment input keyboard according to claim 2 is characterized in that: the gag lever post that is provided with in the described spacing bayonet socket is provided with rubber shock-absorbing sleeve, and the fixing position of the two ends of this gag lever post and bracing frame also is provided with the yielding rubber pad.
4. contactless rod-pulling type electronic equipment input keyboard according to claim 1 is characterized in that: between the plate body of described two limiting plates and the both sides, front and back of pull rod shaft all are coated with lubricating grease.
5. contactless rod-pulling type electronic equipment input keyboard according to claim 1, it is characterized in that: described button keycap, button pull bar, the dynamo-electric change over switch of no mechanical contact are respectively for respectively most, and number is identical, and the number of the grid that are provided with on the limiting plate seam also number with above-mentioned button pull bar is identical.
6. according to claim 1,2,3,4 or 5 described contactless rod-pulling type electronic equipment input keyboards, it is characterized in that: the dynamo-electric change over switch of described no mechanical contact is the photoelectric type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with photoelectric conversion device, this photoelectric conversion device includes light-emitting device and receiving system, the movable foremost noncontact of described pull bar is arranged between the light-emitting device and receiving system of this photoelectric conversion device, and is in release and blocks two states; This photoelectric conversion device is electrically connected with signal processing circuit.
7. according to claim 1,2,3,4 or 5 described contactless rod-pulling type electronic equipment input keyboards, it is characterized in that: the dynamo-electric change over switch of described no mechanical contact is the electromagnetic type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with the hall device conversion equipment, described pull bar be set with permanent magnetic sheet foremost, pull bar foremost permanent magnetic sheet and hall device be near and away from two states; This hall device is electrically connected with signal processing circuit.
8. according to claim 1,2,3,4 or 5 described contactless rod-pulling type electronic equipment input keyboards, it is characterized in that: the dynamo-electric change over switch of described non-contact type is the inductance type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with the miniature inductance coil, the armature that is set with bending foremost of described pull bar is between this armature and the miniature inductance coil and inserts and the extraction two states; This miniature inductance coil is electrically connected with signal processing circuit.
9. according to claim 1,2,3,4 or 5 described contactless rod-pulling type electronic equipment input keyboards, it is characterized in that: the dynamo-electric change over switch of described no mechanical contact is the condenser type change over switch, the bracing frame of the front end correspondence position of described pull bar is provided with the fixed capacity pole piece, described pull bar be provided with the movable electric capacity pole piece corresponding foremost with the fixed capacity pole piece, be between this activity electric capacity pole piece and the fixed capacity pole piece and insert and extract two states out; The electric capacity pole piece of this micro capacitance is electrically connected with signal processing circuit.
10. contactless rod-pulling type electronic equipment input keyboard according to claim 6 is characterized in that: described electronic equipment input keyboard be electronics stenographic machine keyboard, electronic typewriter keyboard, electronic music instrument keyboard one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201241006U CN201042002Y (en) | 2006-07-20 | 2006-07-20 | No contact pull pole electronic device input keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201241006U CN201042002Y (en) | 2006-07-20 | 2006-07-20 | No contact pull pole electronic device input keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201042002Y true CN201042002Y (en) | 2008-03-26 |
Family
ID=39253713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201241006U Expired - Fee Related CN201042002Y (en) | 2006-07-20 | 2006-07-20 | No contact pull pole electronic device input keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201042002Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138731A (en) * | 2013-02-28 | 2013-06-05 | 河南新天科技股份有限公司 | Isolation type button |
-
2006
- 2006-07-20 CN CNU2006201241006U patent/CN201042002Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138731A (en) * | 2013-02-28 | 2013-06-05 | 河南新天科技股份有限公司 | Isolation type button |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20100720 |