WO2016180296A1 - 一种配合部为面面配合并有剪刀限位配合面的键开关装置 - Google Patents

一种配合部为面面配合并有剪刀限位配合面的键开关装置 Download PDF

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Publication number
WO2016180296A1
WO2016180296A1 PCT/CN2016/081367 CN2016081367W WO2016180296A1 WO 2016180296 A1 WO2016180296 A1 WO 2016180296A1 CN 2016081367 W CN2016081367 W CN 2016081367W WO 2016180296 A1 WO2016180296 A1 WO 2016180296A1
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Prior art keywords
support
scissors
plate
support plate
scissor
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PCT/CN2016/081367
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English (en)
French (fr)
Inventor
陈�峰
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陈�峰
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Application filed by 陈�峰 filed Critical 陈�峰
Publication of WO2016180296A1 publication Critical patent/WO2016180296A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards

Definitions

  • the present invention relates to a key switch device that performs a keystroke operation; and more particularly to a key switch device that is loaded in a keyboard as an input device of an electronic instrument.
  • the invention also relates to a keyboard provided with a plurality of such key switch devices.
  • a key switch device that can be used in a low-height type keyboard is provided with: a support plate (for example, a metal plate or a lower bottom plate of a keyboard); a key cap disposed above the support plate; and interlocking with each other and mounted on the support plate A pair of plastic scissor foot members that guide and support the keycap in the vertical direction; a switching mechanism corresponding to the contact portion of the opening and closing circuit of the lifting and closing movement of the keycap.
  • the key cap By synchronizing the pair of plastic scissor foot members with each other, the key cap can maintain the posture parallel to the support plate in a substantially vertical direction with respect to the support plate, and simultaneously perform the lifting movement.
  • the keystroke operation characteristics of the key switch device are subject to the stroke amount of the lifting and lowering action of the key cap, the rigidity of the plastic scissor foot member, the gap between the plastic scissor foot member and the key cap, and the keystroke operation characteristic accompanying the so-called keystroke feeling in the lifting motion. Impact.
  • Thin plastic X support structure devices are commonly used in portable electronic devices such as notebook or palmtop computers. Referring to FIG. 1 and FIG.
  • the key structure device of the prior keyboard includes a key cap 1, an elastic body 11, a switch circuit 12, a support plate 15 having a fitting portion, a scissor foot support 16 having an upper and lower fitting portion, and a scissor foot support 16 passing through
  • the upper and lower fitting portions are respectively rotated or slidably coupled with the mating portions of the keycap 1 and the support plate 15, and the scissor-leg supports 16 which are X-shaped from the side as viewed from the side constitute a synchronous linkage support structure by the mutual force transmission between the middle portions to ensure the keys.
  • the cap 1 moves up and down parallel to the support plate 15.
  • the switching circuit of this embodiment adopts a commonly used switching circuit 12, that is, a membrane switch piece, and the switching circuit can be any
  • the electronic circuit can detect the switching circuit that the key is pressed.
  • the mating portion of the support plate 15 is composed of a support plate rotating portion 13 and a support plate sliding portion 14, and the scissor foot support 16 (both produced by plastic) is composed of a right scissor foot 4 and a left scissor foot 8, and the upper and lower fits of the scissor foot support 16
  • the parts are respectively composed of a lower hinge shaft 9, a lower shaft 7 and a scissor upper rotating portion 10, and a scissor upper sliding portion 6.
  • the synchronous linkage supporting structure is composed of a central shaft 5 on the right scissor base 4 and an outer frame on the plastic left scissor foot 8.
  • the hole 5c is hinged.
  • the device is hinged by a central shaft 5 on the right scissor foot 4 made of plastic and a central hole on the left scissor foot 8 made of plastic, and the lower hinge shaft 9 and the lower shaft 7 are respectively rotated with the support plate on the support plate 15. 13 and the strut sliding portion 14 are in a rotational fit and a sliding fit.
  • the upper rotating portion 10 and the upper sliding portion 6 of the scissors are respectively slidably engaged with the keycap sliding portion 3 and the key cap rotating portion 2 of the keycap 1 to form a plastic X supporting structure device, and are elasticized by a circular arch.
  • the rubber cap 11 pushes up the keycap 1 , and the linkage of the left scissor foot 8 and the right scissor foot 4 is formed by a pivotal fit of the central pivot 5 and the central hole 5c respectively located near the middle of the scissor arm; the left scissor foot 8.
  • the connecting portion of the right scissor foot 4 and the keycap 1 and the support plate 15 respectively is a scissor upper rotating portion 10, a sliding shaft 7, and a scissor upper sliding portion 6, and a lower hinge shaft 9 respectively distributed at the upper end or the lower end of the scissor arm.
  • the reset body is composed of an elastic body
  • the elastic body is composed of a rubber elastic ring 11
  • the reset body can also be a common metal elastic piece
  • the reset body can also be a commonly used magnetic body that is mutually disassembled.
  • the rubber ring 11 is mounted and fixed on the upper surface of the switch circuit 12, and the switch circuit 12 is mounted and fixed on the upper surface of the support plate 15, and the support rotating portion 13 and the support sliding portion 14 of the support plate 15 are worn.
  • the key portion of the keycap 1 is formed by a keycap sliding portion 3 or a key cap rotating portion 2, wherein the keycap sliding portion 3 is composed of a key upright limiter 3a, a key reverse fitting surface 3c, and a key matching plane. 3b is configured, the key upright limiter 3a, the key upset mating face 3c, and the key engaging plane 3b are smoothly connected together, the keycap rotating part 2 is opened downward, and the keycap rotating part 2 is rotatably engaged with the scissors upper rotating part 10.
  • the scissors upper sliding portion 6 of the plastic left scissor foot 8 is restricted by the upper and lower positions of the key reverse matching surface 3c, and the key matching plane 3b limits the upper and lower degrees of freedom.
  • the key cap 1 moves up and down, the upper sliding portion of the scissors 6 slid in the space between the key reverse matching surface 3c and the key matching plane 3b, and when the keycap 1 is applied without an external force, the upper sliding portion 6 of the keycap 1 is pressed under the elastic force of the rubber elastic ring 11.
  • the key cap 1 is at the upper limit position, and the key reverse fit surface 3c, the key fit plane 3b, and the key upright limit gear 3a of the mating portion of the existing key cap 1 are all set in the same Within the structure.
  • the existing plastic elastic limit structure of the plastic keycap 1 has problems:
  • the plastic elastic limit structure is set on the keycap 1 of the notebook keyboard. See Figure 2--1 to Figure 2--5.
  • the keycap sliding part 3 is first installed on the scissors.
  • the keycap is further rotated downward to contact the keycap rotating portion 2 with the upper rotating portion 10 of the scissors.
  • two short and thick plastic elastic limiting structures of the keycap rotating portion 2 are required to be produced. Deformation of 0.15mm on one side, enter the matching space of the rotation part 2 of the keycap after deformation, and two pieces of short and thick plastic elastic limit
  • the width B1 of the bit structure is about 0.7mm
  • the length H1 is about 1.6mm
  • B1/H1 0.4375.
  • the short and thick plastic elastic limit structure Since the plastic is a plastic material, the short and thick plastic elastic limit structure has poor elasticity, low strength and small interference of the limit.
  • the two short and thick plastic elastic limit structure molds of the part 2 need to be inclined and the like.
  • the two pieces of short and thick plastic elastic limit structure causing the key cap rotating portion 2 have a high defect rate and a high defect rate during use.
  • the keycap 1 of the notebook keyboard is very prominent after leaving the factory.
  • the problem of the drop-off of the notebook keyboard and the failure of the switch contacts are the two most urgent problems to be solved in the current notebook keyboard;
  • the plastic elastic limit structure of the keycap 1 of the notebook keyboard has the influence of injection molding defects
  • the short-and-thick plastic elastic limit structure of the key top of the notebook keyboard 1 has a interference of unilateral 0.15mm. When the interference is too small, the key phenomenon is easy to occur; when the interference is excessive When large, the two pieces of short and thick plastic elastic limit structure of the key cap rotating portion 2 are prone to failure of the fracture and the hidden failure of the buried fracture;
  • the injection precision is lower than the stamping precision of the thin plate, precision injection molding - the tolerance of the small-sized structural injection molded parts is 0.08mm, the linear size stamping---the punching precision of the thin plate is 0.026mm, and the punching and bending precision of the thin plate is 0.5 degree;
  • the scissor foot support 16 of the sheet metal stamping forming is formed by a plate surface of 0.25 mm-0.7 mm thick, and the upper fitting portion and the lower fitting portion of the scissor foot support 16 are respectively located at the scissor arm.
  • the upper end plate upper extending boss 23 and the lower end plate surface extending boss 24 are formed at the upper end and the lower end, and the upper end plate surface extending boss 23 and the lower end plate surface extending boss 24 are punched and formed into a square-shaped boss.
  • the upper end plate extending boss 23 and the lower end plate extending boss 24 can be punched and chamfered to remove the burrs (the chamfer can be turned into a straight surface, or can be a circular arc surface or an inverted circular surface), and the scissor foot support 16 consists of a left rigid scissor foot 25 and a right rigid scissor foot 26.
  • the extension plates 19 On the inner side and the outer side of the two scissor legs 18 of the scissor foot support 16, there are two extension plates 19 extending from the plate surface of the scissor foot support 16 and extending in the same direction along the length of the scissor foot arm 18, extending the plate surface 19 and
  • the utility model is bent downward along the thickness direction of the scissor arm 18, and the cantilever end of the extension plate surface 19 has a stamped and formed cantilever arc 21 which is located near the lower plate surface of the scissor arm 18 and is located in the longitudinal direction of the scissor arm 18 Near the middle portion, the upper support surface 20 of the scissors is located near the middle of the lower surface of the scissor arm 18 and is part of the lower surface of the scissor arm 18 of the flat plate.
  • the existing key structure device using the sheet metal scissor foot support 16 includes a key cap 1 (not shown), an elastic body 11 (not shown), a switch circuit 12 having a switch contact, and a support plate having a mating portion. 15. Scissor foot support with upper and lower matching parts 16. The corner portion of the upper end plate extending projection 23 of the scissor foot support 16 and the corner portion of the lower end plate surface extending boss 24 (the corner portion of the figure has been rounded) are respectively engaged with the key cap 1 and supported.
  • the mating portions of the plate 15 are rotated or slidably connected, wherein the upper support surface 20 of the scissor foot support 16 and the punch cantilever arc 21 of the other scissor foot support 16 and the upper support surface 20 of the scissor support 16 support each other to form a middle portion.
  • the transmission of forces between the adjacent ones constitutes a synchronous linkage support structure to ensure that the keycap 1 moves up and down parallel to the support plate 15.
  • the keycap 1 When the keycap 1 is pressed, the keycap 1 pushes the upper fitting portion of the left rigid scissor foot 25 and the right rigid scissor foot 26 outwardly along the lower surface of the keycap 1 against the elastic force of the elastic body 11 (not shown).
  • the lower matching portion of the left rigid scissor foot 25 and the right rigid scissor foot 26 is rotatably or slidably engaged with the mating portion of the support plate 15, while the punching cantilever arc 21 slides along the upper support surface 20 of the scissors; the key cap 1 moves downward to the key
  • the bottom surface of the cap 1 is in contact with the switch circuit 12 having the switch contact to reach the lower limit position, and the boss in the elastic body 11 (not shown) triggers the switch on the switch circuit 12 having the switch contact to the lower limit position.
  • the circuit (not shown), after the external force of the keycap 1 is removed, the keycap 1 is reset to the upper limit position by the elastic force of the elastic body 11 (not shown).
  • the commonly used plastic scissor foot support Compared with the support of sheet metal scissors, the commonly used plastic scissor foot support has poor strength, poor rigidity and poor precision, and there are injection molding defects in the injection molding production, which can not achieve further low height of the keyboard. Automated installation, etc. At the same time, the production efficiency of the scissor foot support is much lower than that of the stepping die.
  • the stepping die is also called the high speed die, which has high efficiency, high life and high precision. It is called the modern three high mold.
  • the use of sheet metal scissor foot support instead of the commonly used plastic scissor foot support is the trend of the times. However, the following problems with the existing sheet metal scissor support affect its overall promotion.
  • the sheet metal scissor foot support has the advantages of high strength, high rigidity, high production efficiency, and low production equipment cost.
  • the existing sheet metal scissors support has the following problems:
  • the upper fitting portion and the lower fitting portion of the scissor foot support 16 are formed by punching sheet metal into a boss having a square cross section, and the corners of the bosses having a square cross section are respectively matched with the mating portions of the key cap and the support plate. During use, the corners of the bosses of the scissor foot support 16 accelerate the wear of the key cap and the support plate, resulting in rapid loss of precision of the scissor foot support, the key cap, and the support plate;
  • the corner of the boss with a square cross section is chamfered----can be inverted into a straight surface, a circular arc surface, or an inverted circular surface.
  • the chamfering process of the sheet metal is difficult (especially with a thinner Metal plate), and there are problems such as poor chamfering accuracy and poor surface finish;
  • the scissor foot support 16 is made of a very thin metal plate, if a metal plate of 0.1 mm---0.2 mm is used, chamfering the corner of the boss having a square cross section is an impossible task, and the cross section is square.
  • the thickness of the boss is thin to a certain extent and becomes a blade;
  • the scissor foot support 16 is made of a thin metal plate (for example, a metal plate of 0.08 mm---0.2 mm), the space between the key reverse-fitting surface 3c and the key-fitting plane 3b cannot be injection-molded (see figure).
  • 3-- Figure 5 key reverse button mating surface 3c and key fit The plane 3b position corresponds to), when the height dimension of the space is 0.08mm---0.15mm, the injection mold adopts the alloy sheet of 0.08mm---0.15mm, and the sheet can neither be processed nor strength;
  • the matching part of the scissor foot support 16 cannot be oversized, and the current popular keycap mounting method cannot be used, and the installation method of the currently popular scissor foot support 16 cannot be adopted;
  • the existing sheet metal scissor foot support adopts a plate thickness of 0.4 mm or more, and the material cost is high, which affects the further low height of the keyboard (the two existing sheet metal scissor foot supports are stacked up to 0.8 mm thick).
  • the object of the present invention is to provide a surface matching of a smooth plate surface which is simple in stamping process and supported by a scissor foot, and a high-precision fit of the key cap and the support plate, and a restriction of the opening of the support plate is facilitated.
  • the rotary mounting of the scissor foot support realizes high-precision cooperation with the scissor foot support through the support plate opening limit arc surface provided on the support opening limit portion, and the elastic limit structure is arranged on the thin metal scissors foot, completely solving the problem.
  • the problem of the existing laptop keyboard drop key is difficult.
  • a key switch device with a mating portion and a scissors limit matching surface of the present invention includes a key cap, a reset body, a switch circuit, a support plate having a mating portion, and The scissor foot support of the upper and lower mating portions, the scissor foot support is rotated or slidably connected to the mating portions of the key cap and the support plate through the upper and lower fitting portions, respectively, and the scissor foot support constitutes a synchronous linkage support structure by mutual force transmission to ensure the key cap Parallel to the support plate for lifting movement, wherein the supporting portion of the supporting plate 15 is composed of a supporting portion of the supporting plate, an inverted engaging portion on the cantilever plate 42 of the supporting plate, and at least one opening limiting portion of the supporting plate.
  • the support opening limit portion is disposed at an opening of the mating space between the support plate and the support plate 15 , and the support opening of the support plate is provided with a support opening;
  • the lower plate upper surface 41 of the scissors cooperates with the inverted engagement portion of the support plate 15, and the scissors limit matching portion of the scissors foot support 16 cooperates with the support plate opening limit arc surface on the support opening limit portion of the support plate, and the support plate support portion and Supporting the support under the scissors;
  • the limit opening arc surface of the support plate is composed of a support plate opening I limit arc 55 and a support plate opening II limit arc 54.
  • the scissors limit matching portion is composed of a scissors I limit surface 56 and a scissors II limit surface 57, wherein The support plate opening I limit arc 55 and the scissors I limit surface 56 limit fit, the support plate opening II limit arc 54 and the scissors II limit surface 57 limit fit;
  • the center of the support plate opening I limit arc 55 is located in the vicinity of the mating portion of the adjacent support plate 15.
  • the distance L between the support opening of the support plate and the cantilever end of the cantilever plate 42 is ⁇ the thickness B of the scissor support 16.
  • center of the support plate opening I limit arc 55 is located at the lower support portion of the scissors and the support portion of the support plate. Near the contact.
  • the support plate 15 is provided with a support plate opening limit arc bending plate 52, a support plate opening and bending plate 53, a support plate matching X-bending edge 43; and a support plate opening limit arc bending plate 52 is bent at 90 degrees in the Y direction, and the support plate is bent inward in the X direction with the X-bend edge 43.
  • the bent plate 53 of the support plate is bent in the X direction or bent at 90 degrees in the Y direction.
  • the plate cantilever plate 42 and the support plate are disposed at an angle with the X-bend edge 43 and extend inward in the X direction, and the inverted engagement portion is located on the lower surface of the cantilever end side of the support plate 42; the support plate opening I is limited to 55
  • the support plate opening limit arc 54 is located on the support plate opening limit arc bending plate 52.
  • the support plate 15 is provided with a support plate opening limit arc bending plate 52, a support plate opening and bending plate 53, a support plate matching Y bending edge 40; a support plate opening limit arc bending plate 52 is bent at 90 degrees in the Y direction, and the support plate is bent at 90 degrees in the Y direction with the Y-folded edge 40.
  • the bent plate 53 of the support plate is bent in the X direction or bent at 90 degrees in the Y direction, and the support cantilever
  • the plate 42 and the support plate are angled with the Y-folded edge 40 and extend inward in the X direction, and the inverted engaging portion is located on the lower surface of the cantilever end side of the cantilever plate 42 of the support plate;
  • the support plate opening I limits the arc 55, the branch
  • the plate opening II limit arc 54 is located on the plate opening limit arc bending plate 52.
  • the scissor foot support 16 is formed with an elastic sheet metal elastic arm, and the scissor foot support 16 has a stamped and formed scissor-proof structure; and the key cap 1 is provided with a key limiting boss 30.
  • the mutually supported scissor foot support 16 is engaged with the key limit boss 30 of the keycap 1 by the scissors retaining structure to prevent the key from coming out or to limit the keycap 1 to the upper limit position.
  • the scissor foot support 16 is formed with an elastic sheet metal elastic arm, the scissor foot support 16 has a stamped and formed scissor-proof structure; and the key end 1 is provided with a key end limit surface 31, The mutually supported scissor foot supports 16 are engaged with the key end limit surface 31 of the keycap 1 by the scissors retaining structure to prevent the key from coming off or to limit the keycap 1 to the upper limit position.
  • the upper fitting portion of the scissor foot support 16 is composed of a scissor upper support portion, a scissor upper end lower plate surface 36 of the scissor foot support 16, and a scissor retaining structure, wherein the upper support portion of the scissor and the key cap 1 are The cap support mating portion cooperates, and the upper end lower surface 36 of the scissors located at the upper end of the scissor foot support 16 engages with the inverted engaging portion on the key reverse boss 28 of the keycap 1.
  • the lower support portion of the scissors is formed by a scissor-fitted arc 39 located at the lower end of the scissor foot support 16
  • the scissor-fitted arc 39 is formed by a circular arc formed by the press scissor foot support 16 on the left and right sides.
  • the scissoring under the scissor arc 39 is located on the lower plate surface of the scissor foot support 16.
  • the scissor foot support 16 is rotated or slidably connected to the mating portion of the key cap by the thickness dimension between the upper end plate surface 35 of the scissors and the lower upper plate surface 36 of the scissors.
  • the upper engaging portion of the scissor foot support 16 is composed of a scissor upper support portion, a scissor upper end lower plate surface 36 of the scissor foot support 16, and a separately disposed scissor anti-detachment structure, and the upper upper plate surface 36 of the scissor is planar.
  • the inverted engagement portion is formed by an inverted engagement ring 28a, and the upper support portion of the scissors is formed by an upper plate surface of the scissors foot support 16.
  • the engaging portion of the support plate 15 is composed of a support portion of the support plate, an inverted engaging portion on the support cantilever plate 42 of the support plate 15, and two support opening portions of the support plate, wherein one of the support opening portions of the support plate A support plate opening I limit arc 55 and a plate opening II limit arc 54 are provided, and the scissors limit fitting portion is disposed on the left side or the right side of the lower end of the scissor foot support 16.
  • the coordinates of the contact point between the lower support portion of the scissors and the support portion of the support plate are X: 0 mm, Y: 0 mm, and the center of the arc of the support plate opening is located under the support of the scissors and the support of the support plate.
  • the contact point of the portion is in the range of X: ⁇ 0.65 mm and Y: ⁇ 0.85 mm of the base point.
  • the center of the limit opening 55 of the support plate opening is the same as the center of the matching arc 39 of the scissors, and the center of the inverted joint portion is the same as the center of the arc 39 of the scissors, and the opening of the support plate is limited to 55 and the support.
  • the plate opening II limit arc 54 is at the same center, the scissors foot support 16 is rotatably engaged with the support plate 15.
  • support plate opening I limit arc 55 and the support plate opening II limit arc 54 are at the same center.
  • the distance between the scissors I limiting surface 56 to the contact point of the lower scissors support portion and the upper surface of the support plate support portion is L1
  • the radius R1 of the support plate opening I limit arc 55 is L1 ⁇ 0.35 mm.
  • scissors limit through hole on the left side or the right side of the lower end of the scissor foot support 16 , and the scissors I limiting surface 56 and the scissors II limiting surface 57 are located on the upper and lower end faces of the limiting through hole of the scissors limiting through hole. .
  • scissors limit through hole on the left or right side of the lower end of the scissor foot support 16 , and the scissors I limiting surface 56 and the scissors II limiting surface 57 are located at the upper and lower end faces of the limiting through hole of the scissors limiting through hole. Extension surface.
  • the matching cut point of the limit opening of the support opening and the coordinate of the scissors is located at the upper and lower sides of the scissor support 16 Between the plates, the matching points are located on the upper and lower end faces of the limiting through holes.
  • the matching cut point of the support opening of the support plate and the coordinate of the scissors is located at the scissors foot.
  • the neutral surface between the upper and lower plate faces of the support 16 is matched with the tangent point and located on the upper and lower end faces of the limit through hole.
  • the matching cut point of the support opening arc surface and the scissors limit matching portion is located on the scissor foot support 16 Above the board surface, match the cutting point and be located on the extended surface of the scissors limit fitting.
  • the matching cut point of the support opening of the support opening and the coordinate of the scissors is located under the support of the scissor foot 16 Below the board surface, match the tangent point and be located on the downward extension surface of the scissors limit fitting.
  • the lower support portion of the scissors and the lower plate upper surface 41 of the scissors are in a transitional fit with the support portion of the support plate and the support plate 15, and the limit surface 56 of the scissors I and the opening I of the support plate are limited.
  • the lower support portion of the scissors and the lower plate upper surface 41 of the scissors are held in contact with the support portion of the support plate and the support plate 15, respectively, and the key cap 1 moves up and down in parallel, and the scissors foot support 16 rotates.
  • the trajectory formed by the trajectory of a point on the scissor foot support 16 coincides with the slab opening I limit arc 55.
  • the lower support portion of the scissors is kept in contact with the support portion of the support plate, and the key cap 1 is moved up and down in parallel.
  • the coordinate limiting portion of the scissors contacts and slides along the limit arc 55 of the support opening I
  • the lower surface of the upper surface of the scissors 41 The trajectory of a point on the surface of the board coincides with the inverted snap fit.
  • the upper and lower smooth flat plates supported by the scissor feet respectively realize the surface matching with the key cap and the support plate, greatly improve the matching precision, improve the wear resistance between the parts, and the key switch device is durable;
  • the upper matching portion of the scissor foot support 16 is composed of a flat plate surface and an independent anti-offset structure of the scissors, which simplifies the stamping process of the scissor foot support 16 and improves the processing precision of the scissor foot support 16;
  • the matching surface of the scissor foot support 16 and the key cap is separately arranged from the scissor anti-detachment structure, so that the plate surface of the matching surface of the scissor foot support 16 and the key cap is simple and flat, and the planar plate surface does not need to be processed. , improve the matching precision and machining accuracy (the more the stamping times of sheet metal, the worse the machining accuracy is, the more the number of sheet metal plastic deformations is, the worse the machining accuracy is);
  • the lower fitting portion of the scissor foot support 16 is composed of a flat upper scissors upper plate surface 41, a scissors limit fitting portion, and a scissors lower support portion, and only the left and right side plates of the lower end of the scissor foot support 16 are folded.
  • the bending that is, the lower support portion of the scissor having a curved surface shape, is formed by the planar upper surface of the upper end surface 41 of the scissors and the lower support portion of the curved surface of the scissor and the mating portion of the support plate 15 to improve the cooperation. Accuracy and machining accuracy;
  • a support opening limit portion is provided at the opening of the mating space between the support plate 42 and the support plate 15, so that the key cap is more convenient to install, especially when the key cap is manually mounted on the scissor support 16.
  • the scissor foot support 16 is removed from the opening of the mating space between the support plate 42 and the support plate 15 to affect the installation of the key cap, so that the key cap installation is more convenient and quick;
  • a support opening limit portion is provided at an opening of the mating space between the support plate 42 and the support plate 15, so that the rotary mounting of the scissor support 16 is more convenient, and the scissor support 16 is rotated when the scissor support 16 is mounted. Rotating, the plate opening limit will The scissor foot support 16 gradually enters the matching space between the support plate cantilever plate 42 and the support plate 15, so that the lower plate upper surface 41 of the scissors has a matching fit with the inverted engagement portion, which is convenient for manual installation and improves automatic The reliability of mounting the scissor foot support 16;
  • the support of the scissor foot with ultra-thin thickness reduces the thickness of the support of the scissor foot by double, further realizes the low height of the key
  • the independent anti-offset structure of the scissors is composed of a metal elastic limit structure.
  • the elastic limit structure of the thin metal scissors feet has good elasticity and high strength, and can increase the interference of the limit (up to 0.5mm).
  • the cap and the metal scissors feet have high reliability.
  • the keycap 1 becomes a maintenance-free fully rigid structure, which greatly reduces the defective rate of the keycap 1 and completely solves the problem of the old keyboard keyboard being used when the keyboard is used;
  • the elastic limit structure of the sheet metal scissors feet has no injection defects, and the elastic limit structure of the sheet metal scissors feet does not suffer from fracture failure. Hidden danger of deformation failure;
  • the lower height design of the keycap can be further realized, and the material cost of the scissor foot support can be doubled.
  • the thickness of the aluminum alloy scissor foot support is reduced from the current 0.4 mm to 0.15 mm; the thickness of the steel scissor foot support is now 0.4mm thinning is 0.08mm;
  • the matching portion of the key cap is arranged in the width direction of the key by the key reverse matching surface 3c and the key matching plane 3b, that is, the key reverse matching surface 3c is located beside the key matching plane 3b, completely solving the use of the ultra-thin scissors foot.
  • the mating portion of the key cap is between the key matching surface 3c and the key matching plane 3b;
  • the key upright limiter 3a is integrated with the key reverse fit surface 3c, and the key limit structure is independently set, the key flip joint surface 3c of the key cap is opened inward, and the key is inverted. Face 3c sets the front bevel to create a condition for the new installation of the upper key cap in the upper limit position; (the existing key switch device supported by plastic scissor feet, when the plastic scissor foot support is at the lower limit position, the key cap is installed)
  • the key switch device of the metal scissor foot structure can be widely applied to a computer keyboard, a palmtop computer, various embedded keyboards, and a key switch device for performing a keystroke operation.
  • the strength and structural rigidity of the scissor foot support structure are greatly improved, and the metal scissor foot realizes ultra-light and ultra-thin and further realizes miniaturization of the key device.
  • the key switch device supported by the face-to-face scissors foot can be widely applied to computer keyboards, palm-sized computers, various embedded keyboards, and key switch devices for performing keystroke operations.
  • the invention doubles the material cost of the scissor foot support, simplifies the stamping process of the scissor foot support, greatly improves the fitting precision of each part, and improves the wear resistance between the parts.
  • Figure 1 is a structural view of a conventional plastic scissor foot support structure device of a key cap
  • FIG. 2 is a connection diagram of a conventional plastic scissor foot support structure device of a key cap
  • Figure 2-1 is a diagram showing the installation process of an existing keycap supported by an existing plastic scissor foot
  • Figure 2-2 is a diagram showing the installation process of an existing keycap supported by an existing plastic scissor foot
  • Figure 2-3 is a diagram showing the installation process of an existing keycap supported by an existing plastic scissor foot
  • Figure 2-4 is a diagram showing the installation process of an existing keycap supported by an existing plastic scissor foot
  • Figure 2-5 is a diagram showing the installation process of an existing keycap supported by an existing plastic scissor foot
  • Figure 3 is a cross-sectional view showing a key device of the prior sheet metal scissor foot support in an upper limit position
  • Figure 4 is a cross-sectional view showing a key device of a conventional sheet metal scissor foot support in a lower limit position
  • Figure 5 is a cross-sectional view showing a key device of a conventional sheet metal scissor foot support at a lower limit
  • Figure 6 is a perspective view of a keycap of the present invention.
  • Figure 7 is a perspective view of the key device of the scissor foot of the present invention installed in the upper limit position;
  • Figure 8 is a perspective view of the key device of the scissors foot of the present invention installed in the upper limit position
  • Figure 9 is a front elevational view of the key device of the present invention.
  • Figure 10 is a side view of Figure 9;
  • Figure 11 is a cross-sectional view taken along line A-A of Figure 9;
  • Figure 12 is a perspective view of the keycap of the key device supported by the scissor foot of the eight-type mounting of the present invention.
  • Figure 13 is a perspective view of the key device of the eight-type mounted scissor foot support of the present invention.
  • Figure 14 is a front elevational view of the key device of the eight-type mounted scissor foot support of the present invention.
  • Figure 15 is a cross-sectional view taken along line C-C of Figure 14;
  • Figure 16 is a cross-sectional view taken along line B-B of Figure 14;
  • Figure 17 is a cross-sectional view taken along line D-D of Figure 14;
  • Figure 18 is a cross-sectional view showing the key device of the inverted eight-type mounted scissor foot support of the present invention.
  • Figure 19 is a cross-sectional view showing the key device of the inverted eight-type mounted scissor foot support of the present invention.
  • Figure 20 is a cross-sectional view showing the key device of the inverted eight-type mounted scissor foot support of the present invention.
  • Figure 21 is a perspective view of the support plate 15 of the present invention having a plate opening limit arc surface
  • Figure 22 is a perspective view of the key device of the support plate 15 having the support opening limit arc surface of the present invention.
  • Figure 23 is a front elevational view showing the key device of the support plate 15 having the support opening limit arc surface of the present invention.
  • Figure 24 is a cross-sectional view taken along line G-G of Figure 23;
  • Figure 25 is a cross-sectional view taken along line F-F of Figure 23;
  • Figure 26 is a cross-sectional view taken along line E-E of Figure 23;
  • Figure 27 is a perspective view of a rotary jacking support of the scissor foot support of the support plate 15 of the present invention having a support opening restriction portion;
  • Figure 28 is a perspective view of a rotary jacking support of the scissor foot support of the support plate 15 of the present invention having a support opening restriction portion;
  • Figure 29 is a perspective view of a rotary jacking support of the scissor foot support of the support plate 15 of the present invention having a support opening restriction portion;
  • Figure 30 is a perspective view of a rotary jacking support of the scissor foot support of the support plate 15 of the present invention having a support opening restriction portion;
  • Figure 31 is a perspective view of a rotary jacking support of the scissor foot support of the support plate 15 of the present invention having a support opening restriction portion;
  • Figure 32 is a perspective view of a rotary jacking support of the scissor foot support of the support plate 15 of the present invention having a support opening restriction portion;
  • FIG. 33 is a schematic view showing the rotational fit of the scissor foot support and the support plate 15 when the R1, R2, and R3 of the present invention are the same as the center;
  • Figure 34 is a schematic view showing the rotational fit of the scissor foot support and the support plate 15 when the R1, R2, and R3 of the present invention are the same as the center;
  • Figure 35 is a schematic view showing the rotational fit of the scissor foot support and the support plate 15 when the R1, R2, and R3 of the present invention are the same as the center;
  • Figure 36 is a schematic view showing the upper surface of the R1 of the support opening of the support plate of the support plate on the support of the scissor foot;
  • Figure 37 is a schematic view showing the upper surface of the R1 of the support opening of the support plate of the support plate on the support of the scissor foot;
  • Figure 38 is a schematic view showing the upper surface of the R1 of the support plate opening limit arc surface of the support plate on the scissor foot support;
  • 39 is a schematic view showing the upper surface of the R1 of the support plate opening limit arc surface of the support plate on the scissor foot support;
  • Figure 42 is a schematic view showing the center of the opening limit arc surface R1 of the support plate of the present invention between the upper and lower plates of the scissor support;
  • Figure 43 is a schematic view showing the center of the opening limit arc surface R1 of the support plate of the present invention between the upper and lower plates of the scissor foot support.
  • a key switch device with a mating portion of the present invention includes a key cap, a reset body, a switch circuit, a support plate having a mating portion, and a scissor foot support having an upper and lower mating portion.
  • the scissor foot support is rotated or slidably connected to the mating portions of the key cap and the support plate through the upper and lower fitting portions respectively, and the scissor foot support constitutes a synchronous linkage support structure by the mutual force transmission to ensure that the key cap moves up and down parallel to the support plate.
  • the scissor foot support 16 is formed with an elastic sheet metal elastic arm, and the scissor foot support 16 has a stamping and forming anti-off structure; the key cap 1 is provided with a key limiting boss 30 on the outer side of the key limiting boss 30. A key end limiting surface 31 is disposed, and the mutually supported scissor foot support 16 is restrained from the key end limiting surface 31 of the key limiting boss 30 of the key cap 1 by the scissors anti-drop structure, thereby preventing the key from coming off or Limit the keycap 1 to the upper limit.
  • the independent anti-detachment structure of the scissors is composed of a metal sheet metal elastic arm and a scissor anti-off structure.
  • the metal sheet metal elastic arm of the sheet metal scissor foot has good elasticity and high strength, and can increase the interference of the limit (up to 0.5 mm). ), the key cap and the sheet metal scissors feet are highly reliable in matching.
  • the elastic limit structure on the keycap 1 is eliminated, so that the keycap 1 becomes a maintenance-free fully rigid structure, which greatly reduces the defective ratio of the keycap 1 and completely solves the problem of the key drop of the existing notebook keyboard. problem.
  • the elastic limit structure of the sheet metal scissors foot has no injection defects, and the elastic limit structure of the sheet metal scissors foot does not have the hidden trouble of failure and deformation failure.
  • the upper engaging portion of the scissor foot support 16 is composed of a scissor upper support portion, a scissor upper end lower plate surface 36 of the scissor foot support 16, and a scissor retaining structure, wherein the scissor upper support portion cooperates with the key cap support fitting portion of the key cap 1,
  • the lower upper surface 36 of the scissors located at the upper end of the scissor foot support 16 cooperates with the inverted engagement portion on the upper button boss 28 of the keycap 1; the lower upper surface 36 of the scissors is planar, and the inverted engaging portion is inverted
  • the snap-fit arc 28a is formed, and the scissor upper support portion is constituted by a flat upper upper shear plate surface 35 of the scissor-leg support 16.
  • the lower support portion of the scissors is composed of a scissor-fitted arc 39 located at the lower end of the scissor foot support 16 , and the scissor-fitted arc 39 is formed by a circular arc formed by the press scissor foot support 16 on the left and right sides, and the scissor is pressed under the arc. 39 is located on the lower surface of the scissor foot support 16.
  • the lower end of the scissors is formed on the lower side of the scissor foot support 16 and the lower side of the scissor arc 39 is located on the lower surface of the curved side of the scissor plate 37 and the lower end of the scissors.
  • the face scissors are pressed under the matching arc 39 to cooperate with the support portion of the support plate.
  • the scissors foot support 16 is rotated or slidably connected to the mating portion of the key cap by the thickness dimension between the upper plate upper surface 35 of the scissors and the lower plate surface 36 of the scissors; the distance between the inverted engaging portion of the support plate 15 and the support portion of the support plate
  • the dimension of the distance between the upper surface 41 of the scissors lower end of the scissor foot support 16 and the lower surface 38 of the lower end of the scissors adopts a transition fit; the distance between the inverted engagement portion of the support plate 15 and the support portion of the support plate ⁇ the scissor foot support 16
  • the lower end of the scissors is between the upper surface 41 and the lower support portion of the scissors the distance.
  • the upper engaging portion of the scissor foot support 16 is composed of a scissor upper support portion, a scissor upper end lower plate surface 36 of the scissor foot support 16, and a separately disposed scissor anti-detachment structure.
  • the upper end lower surface 36 of the scissor is planar, and the inverted engaging portion is The inverted buckle is formed by the arc 28a, and the upper support portion of the scissors is constituted by the upper plate surface of the scissor foot support 16.
  • the fitting portion of the support plate 15 of the present embodiment is composed of a support portion and an inverted engagement portion on the support plate 42 of the support plate.
  • the boss of the concave bottom surface 27 of the key cap is provided with a key fitting shoulder 29, a key matching shoulder 29 provided independently, a key reversed boss 28 of the independently provided key cap, and a separately provided key end.
  • the portion limiting surface 31 constitutes a mating portion of the keycap.
  • a key mounting guide surface 30a is disposed on the inner side of the key limiting boss 30, and a key end limiting surface 31 is disposed outside the key limiting boss 30 between the two mating portions in the width direction of the keycap 1.
  • the bottom surface of the concave bottom surface of the key cap is respectively provided with a left and right rigid key limiting boss 30, and the key cap anti-drop structure is formed by the key end limiting surface 31 of the key limiting boss 30, and the key limit is
  • the inside of the boss 30 has a key limiting boss guiding surface 30, and a key end limiting surface 31 is disposed outside the key limiting boss 30.
  • the mating portion of the key cap is composed of a key engaging shoulder 29, a key inverted boss 28, and a key anti-drop structure.
  • the reverse surface of the key inverted boss 28 has an inverted matching portion, a tilted front buckle, and a key
  • the limiting boss 30 is higher than the key inverted boss 28, and the inverted engaging portion is located on the lower surface of the key reversed boss 28, and the lower surface of the key reversed boss 28 and the corner of the reverse front bevel are an inverted engaging portion.
  • the corner portion is the best in the curved surface
  • the front bevel end of the key upside down boss 28 is also not reversed
  • the inverted engaging portion is located at the corner of the cantilever end of the lower surface of the key inverted boss 28
  • the corner portion is preferably formed by a curved surface (not shown), but the front bevel is preferably formed.
  • the inverted buckle fitting portion is constituted by the inverted engagement arc 28a.
  • the mating portion of the support plate 15 is composed of a support portion of the support plate and an inverted engaging portion on the cantilever plate 42 of the support plate.
  • the support plate 15 is made of an aluminum alloy of about 0.5 mm thick, and the support plate 15 has four independent parts.
  • the support plates which are respectively bent to the left and right sides at 90 degrees in the Y direction are matched with the Y-bend flanges 40, and the four support plates and the Y-bend flanges 40 have inwardly extending support plate cantilever plates 42 which are matched with Y in the support plates.
  • the lower surface of the support cantilever plate 42 of the bent side 40 near the cantilever end is provided with a reverse fit portion and a reverse front slope.
  • the scissor edge 37 which is formed by bending the scissor foot surface in the X direction, and the scissoring under the arc 39 is located at the bending arc of the scissor blade surface and the lower end of the scissor edge 37 of the scissors.
  • the plate surface, the circular arc-shaped scissors press-fitted arc 39 cooperates with the support plate support portion, and the support plate support portion is constituted by the upper plane of the support plate 15 or by the upper plane of the boss formed on the support plate 15 or by a switch
  • the upper surface of the circuit 12 is constructed (this figure is used in conjunction with the upper surface of the switch circuit 12).
  • the support plate 15 is made of 0.1 mm---0.2 mm thick steel plate, and the support plate 15 has four independent support plates which are bent inward in the X direction and fit inward with the X-folded edge 43, in four branches.
  • the plate fits the X-bend side 43 and has a support plate cantilever plate 42 extending inwardly.
  • the cantilever end side of the support plate cantilever plate 42 has an upwardly (Z-direction) bent reverse front bevel, and the support plate cantilever plate 42.
  • the lower plate surface at the bend of the front bevel of the reverse buckle is an inverted buckle fitting portion, and the front bevel surface of the cantilever end plate 42 of the support plate can also be reversed, and the inverted engaging portion is located under the cantilever plate 42 of the support plate.
  • the corner of the cantilever end of the plate surface (not shown) is preferably formed by stamping a curved surface (not shown), but the front bevel is preferably formed.
  • the mutually supported scissor foot support 16 is restrained by the scissors end limit stop 33 and the key end limit surface 31 provided on the outer side of the key limit boss 30 of the key cap 1 to prevent The keycap is disengaged and the keycap 1 is limited to the upper limit.
  • the key flip-flops 42 on the support plate 15 or the key-back bosses 28 on the keycap 1 have an inverted engaging portion, a reverse front bevel, and the upper end 41 of the scissors foot support 16 or the scissor support
  • the upper end lower surface 36 of the scissors 16 is engaged with the inverted buckle engaging portion;
  • the reverse buckle engaging portion is connected with the reverse buckle front inclined surface, and the reverse buckle front inclined surface is located inside the inverted buckle fitting portion;
  • the reverse buckle front inclined surface on the key inverted buckle 28 The reverse buckle front slope which is inclined downward or on the bent side of the support plate 15 is inclined upward.
  • the engaging portion of the key cap is arranged in the width direction of the key by the key inverted boss 28 and the key engaging shoulder 29, that is, the key inverted boss 28 is located beside the key engaging shoulder 29.
  • the key inverted boss 28 and the key engaging shoulder 29 are arranged along the width direction of the key, and the thickness of the scissors foot support 16 between the upper plate upper surface 35 of the scissors and the lower upper surface 36 of the scissors is respectively inverted with the key of the key cap.
  • the table 28 and the key matching shoulder 29 are matched; the size of the lower surface of the key upside down boss 28 to the concave bottom surface 27 of the key cap can be made large, and the key cap can be produced by pulling the core inward along the length direction of the key.
  • the upper and lower flat plates of the scissor foot support 16 are respectively matched with the key cap 1 and the support plate 15, which completely simplifies the matching portion of the scissor foot support 16 so that the support of the scissors feet with an ultra-thin thickness can be used to double the material cost of the scissor foot support.
  • the thickness of the aluminum alloy scissor foot support is reduced from the current 0.4mm to 0.15mm; the thickness of the steel scissor foot support is reduced from the current 0.4mm to 0.08mm.
  • the use of ultra-thin scissors feet supports double the thickness of the scissor foot support, further reducing the height of the keys.
  • the mating portion of the support plate 15 is composed of a support portion of the support plate and an inverted engaging portion on the cantilever plate 42 of the support plate, and the inverted engaging portion is formed by the inverted engaging arc 28a.
  • 28a is a portion of the lower surface of the cantilever plate 42.
  • the inverted engagement arc 28a is a straight line of the cantilever end of the cantilever plate 42.
  • the plate surface on the cantilever end side of the cantilever plate 42 is bent upward, and a radius R surface is formed on the lower plate surface of the cantilever plate 42 of the support plate, and the inverted engagement arc 28a is composed of the R arc surface. .
  • the lower support portion of the scissors is composed of a scissor-fitted arc 39 located at the lower end of the scissor foot support 16, and the scissor-pressed lower arc 39 is formed by the punched scissor foot support 16 on the left and right sides of the plate-formed scissors.
  • Arc composition, The scissor-fitted arc 39 is located on the lower plate surface of the scissor foot support 16.
  • the upper fitting portion of the scissor foot support 16 is composed of a scissor upper upper plate surface 35, a scissor upper end lower plate surface 36, and a scissors retaining structure.
  • the scissor anti-drop structure of the embodiment is composed of a separately arranged scissors bending limit stop 33.
  • the lower end surface of the through hole 34 of the scissors has a middle elastic arm 32 (the sheet metal elastic arm is formed by the middle armor elastic arm 32), and a scissors bending limit position is provided at the cantilever end of the sheet metal elastic arm 32.
  • the scissors retaining structure of the present embodiment is constituted by a bending limit stop 33 located near the middle portion between the two upper fitting portions of the scissor foot support 16, and the middle gilt elastic arm 32 is supported by the scissor foot 16 near the middle of the upper end.
  • the elastic cantilever formed by the upward extension of the bottom of the through hole is formed.
  • the middle metal elastic arm 32 may also be formed by extending to the left or right to the left of the through hole 34 of the scissors (not shown), and the scissors bending limit position 33 is located on the elastic arm of the middle elastic arm 32.
  • the middle elastic arm 32 can also be extended from the left portion or the right portion of the through hole 34 of the scissors to the right portion and connected or extended to the left portion and connected to form (not shown), the scissors bending limit position 33 is located on the resilient arm of the middle armor spring resilient arm 32.
  • the scissor foot support 16 is rotated or slidably connected to the upper surface of the upper surface of the scissor 36 and the upper surface 36 of the scissor and the key cap; the mating portion of the key cap supports the mating portion and the key by the key cap.
  • the inverted buckle boss 28 and the separately provided key limit boss 30 are formed; the scissors foot support 16 is formed by sheet metal stamping.
  • the keycap 1 has a keycap support mating portion that cooperates with the scissor foot support 16. The mating portion of the keycap 1 is supported by the keycap, the inverted engagement arc 28a on the keycap 1, and the independently disposed key limiting boss 30.
  • the support plate 15 has a support portion supporting the scissor support 16 , and the engaging portion of the support plate 15 is formed by the support portion of the support plate and the inverted engagement arc 28 a on the bending plate of the support plate 15; 16
  • the lower end upper surface 41 of the scissors is matched with the inverted engagement arc 28a of the support plate 15 in a curved shape, and the lower support portion of the scissors is the lower end surface 38 of the scissors lower support 16;
  • the scissors foot support 16 The upper upper surface 36 of the scissors is matched with the arcuate inverted matching arc 28a of the keycap 1, and the upper support portion of the scissors is the upper surface 35 of the upper end of the scissors; the upper surface of the upper surface of the scissors 35 and the lower lower plate of the scissors
  • the faces 38 are respectively engaged with the keycap support engagement portion and the support plate support portion.
  • the keycap support fitting portion may be constituted by a key fitting shoulder 29 (used in the present embodiment); may be constituted by a concave bottom surface 27 of the key cap; and may be an upper plane or a boss of the boss formed on the concave bottom surface 27 of the key cap
  • the curved surface on the upper plane is formed; it can be formed by a curved surface formed by the concave bottom surface 27 of the keycap.
  • the scissor upper support portion may be an arc surface of the upper portion of the scissor foot support 16 (not shown); it may be a flat upper shear upper plate surface 35; and may be a circular arc-shaped upper end upper surface of the scissor 35,
  • the circular arc surface is formed by forming a curved plate surface or punching a plate surface.
  • the support supporting portion of the support plate may be an upper surface of the support plate 15; the upper surface of the boss formed on the support plate 15 may be Plane; may be a circular arc surface formed on the support plate 15; may be the upper surface of the switch circuit 12; may be a matching shoulder on the support plate 15 (similar to the shoulder structure of the key cap); or may be a support plate The upward section on the punched face on the bend side of 15.
  • the lower support portion of the scissors is composed of a scissor-fitted arc 39 located at the lower end of the scissor foot support 16 , and the scissor-fitted arc 39 is formed by a circular arc formed by the press scissor foot support 16 on the left and right sides, and the scissor is pressed under the arc. 39 is located on the lower plate surface of the scissor foot support 16 (used in this embodiment); the lower support portion of the scissors may also be formed by a corner portion formed by the lower end surface 38 of the scissors and the lower end portion of the scissor foot support 16, or the corner portion may be punched down Arc.
  • the lower support portion of the scissors is formed by the lower lower plate surface 38 of the scissors, and the lower lower plate surface 38 of the scissors is a scissor-fitted arc 39.
  • the support portion of the support plate is formed by a planar plate surface or switch circuit 12 on the support plate 15.
  • the upper surface is composed.
  • the lower support portion of the scissors is formed by the lower lower surface 38 of the scissors, and when the lower lower surface 38 of the scissors is a curved curved surface, the support supporting portion of the support is constituted by a punched curved surface on the support plate 15.
  • the support portion of the support plate is constituted by a flat plate surface of the support plate 15 or the upper surface of the switch circuit 12.
  • two key T-shaped bosses 42 which are vertically symmetrical and erected T-shaped are formed near the middle of the concave bottom surface of the keycap 1.
  • the two cantilever ends of the key T-shaped boss 42 are key inverted convex
  • the table 28 is formed with an inverted engaging portion on the lower surface of the key upside down boss 28, and a key plane limiting boss 43 is formed on the inner side of the two key T-shaped bosses 42 to limit the convexity on the two key planes.
  • the table 43 is formed with two key arc engaging faces 44 formed by concave curved faces, and a key upper limit face 45 is formed near the middle of the two key arc engaging faces 44.
  • the key plane limiting bosses 43 on the left and right sides of the two key arc engaging faces 44 of the present embodiment are equal to the upper limit limit surface 45 of the inner side of the two key arc engaging faces 44 (ie, after installation) After the key cap, the key plane limiting bosses 43 (key limiting bosses 30) on the left and right sides of the two key arc engaging faces 44 function to limit the release of the keycaps).
  • the two-part key arc matching surface 44 may be the same center, and the two-part key arc matching surface 44 may also be different centers. When the two-part key arc matching surface 44 has different centers, the two-part key arc matching surface 44 may also be a plane, and the scissors foot support 16 and The key cap is a displacement fit, and the two-part key arc engaging surface 44 acts to restrict the mating portion of the scissor foot support 16 from moving along the concave bottom surface of the key.
  • the two-arc arc-engaging surface 44 of the circular arc of the embodiment is concentric, and the two-segment key arc-matching surface 44 is smoothly connected into a complete circle.
  • the inverted engaging arch 28a constituting the inverted engaging portion is located near the center of the key arc engaging surface 44, and is theoretically located at the center of the circle.
  • the keycap support engagement portion is constituted by the key arc engagement surface 44; it may also be constituted by the keycap inner concave bottom surface 27.
  • the scissor foot support 16 is mounted in an upright eight-shape, and the lower mating portion of the scissor foot support 16 is punched.
  • the matching arc 39 and the flat upper end upper surface 41 of the scissor are pressed, and the left and right sides of the scissor foot support 16 are provided with elastic left and right sheet metal elastic cantilevers 46 (the sheet metal elastic arm is made of the sheet metal elastic cantilever 46).
  • the left and right sheet metal elastic cantilever 46 extends directly from the plate surface of the scissor foot support 16 , and the left and right sheet metal elastic cantilever arms 46 are in the form of a flat plate (the flat plate surface is optimal), and the upper and lower plate faces 36 of the scissors are located on the left and right sides.
  • the sheet metal elastic arm is composed of left and right sheet metal elastic cantilevers 46.
  • the mating portion of the scissor foot support 16 is composed of a scissor upper end bending arc 45 (scissors upper support portion), a scissor foot support 16 upper upper scissors surface 36, and a scissor upper end bending arc 45 (scissors anti-off structure);
  • the upper support portion of the scissors and the anti-detachment structure of the scissors are all located on the upper end bending arc 45 of the scissors; the lower upper surface 36 of the upper end of the upper and lower sheet metal elastic cantilever 46 and the key upside down boss 28 of the keycap 1
  • the inverted buckle fitting portion cooperates, and the upper end bending arc 45 of the scissors cooperates with the key arc engaging surface 44.
  • the key upside down boss 28 elastically deforms the left and right sheet metal elastic cantilever arms 46, and the upper end bending arc 45 of the scissors enters the mating space formed by the key arc engaging surface 44.
  • the rest is the same as in the first embodiment.
  • the scissor foot support 16 is installed in an inverted eight shape, and the lower fitting portion of the scissor foot support 16 is supported by the lower end of the scissors arc 49 (the lower support portion of the scissors) and the scissors support 16
  • the upper end upper plate surface 41 is formed; the scissors lower support portion and the scissors anti-drop structure of the scissor foot support 16 are all located on the lower end support arch 49 of the scissors; the lower end upper plate surface 41 and the support plate of the scissors on the lower surface of the scissor foot support 16
  • the inverted buckle fitting portion 28 of the upper buckle fitting portion of the 15 is fitted.
  • the support plate 15 has a punching boss for restricting the horizontal movement of the lower end support arch 49 of the scissors, and the lower concave surface 48 of the support plate is formed on the support plate 15 by press forming a punching boss.
  • the lower end support arch 49 of the scissors is rotatably fitted or slightly displaced with the lower concave surface 48 of the support plate 15, and the lower end support arch 49 of the scissors and the lower plate upper surface 41 of the scissors are arranged in a direction perpendicular to the paper surface.
  • the bent-formed support plate inverted buckle side 50 has an upright T-shape, and an under-locking portion is provided on the lower surface of the cantilever end tail portion which is symmetric about the support plate inverted buckle side 50.
  • a symmetrically convex upwardly convex symmetrical boss is formed on the outer side of the two support plate undercuts, and a circular concave lower plate concave surface 48 is formed on the boss, and the scissors foot supports the 16 scissors.
  • the lower end support arch 49 is in rotational fit or small displacement fit with the lower concave surface 48 of the support plate 15 , and the inverted engagement portion on the support reverse bend side 50 is located near the center of the circular concave surface 48 of the circular support plate.
  • the lower end upper surface 41 of the scissors foot support 16 is located near the center of the concave lower surface 48 of the circular support plate (theoretically located at the center of the circle is optimal).
  • the support plate lower concave surface 48 is stamped and formed on the plate stamping and drawing boss 51.
  • the lower scissors support portion and the scissors anti-drop structure are respectively formed by the lower end support arc 49 of the scissors, and the support supporting portion is supported by the lower concave surface of the support plate 48. Composition.
  • a matching part of the present invention is a key switch device with a surface matching and a scissors limit matching surface, including a key cap, a reset body, a switch circuit, a support plate having a matching portion, and an upper and lower matching portion.
  • the scissor foot support, the scissor foot support is rotated or slidably connected with the mating portions of the key cap and the support plate through the upper and lower mating portions respectively, and the scissor foot support constitutes a synchronous linkage support structure by mutual force transmission to ensure that the key cap is parallel to the support
  • the board is used for lifting movements.
  • the mating portion of the support plate 15 is composed of a support plate supporting portion, an inverted engaging portion on the support plate cantilever plate 42 and at least one support opening limit portion.
  • the support opening limit portion is disposed on the support plate cantilever plate 42 and the support portion.
  • the support opening limit portion of the support plate is provided with a support plate opening limiting arc surface; the lower plate upper surface 41 of the scissors cooperates with the inverted engaging portion of the support plate 15, and the scissor foot support 16
  • the scissors limit matching portion cooperates with the support plate opening limit arc surface on the support opening limit portion of the support plate, and the support plate support portion and the lower support portion of the scissors support; the support plate open limit arc surface is supported by the support plate opening I 55, the plate opening II limit arc 54 is formed, the scissors limit matching portion is composed of a scissors I limiting surface 56 and a scissors II limiting surface 57, wherein the supporting plate opening I limiting arc 55 and the scissors I limiting surface 56
  • the limit plate fits, the support opening II limit arc 54 and the scissors II limit surface 57 limit fit; the center of the support plate opening I limit arc 55 is located near the mating portion of the adjacent support plate 15.
  • the distance L between the support opening limit portion and the cantilever end of the support cantilever plate 42 is ⁇ the plate thickness B of the scissor support 16.
  • the center of the support opening I of the support plate opening I is located in the vicinity of the contact point of the lower support portion of the scissors and the support portion of the support plate.
  • the support portion of the support plate is formed by the upper surface of the support plate 15 or the upper surface of the switch circuit, or the support portion of the support plate may be formed by the upper surface of the boss formed by the upper plate surface of the support plate 15 , which is the embodiment of the present invention.
  • the support portion of the support plate is used as the upper plate surface of the support plate 15.
  • the opening limit portion of the support plate is formed by a support opening limit arc bending plate 52 and a support opening bending plate 53.
  • the support opening limit arc bending plate 52 can be bent in the Y direction. It can be bent in the X direction, and the plate opening and bending plate 53 can be bent in the Y direction or in the X direction.
  • the two support plate opening limit arc bending plates 52 are bent leftward and rightward at 90 degrees in the Y direction, and the two support plate opening installation bending plates 53 are bent in the X direction, and the support plates are matched with X folds.
  • the flange 43 is bent inward in the X direction.
  • the lower fitting portion of the scissor foot support 16 is composed of a flat upper scissors upper plate surface 41, a scissors limit fitting portion, and a lower scissors supporting portion, wherein the lower plate upper plate is in the form of a flat plate.
  • the surface 41 cooperates with the inverted engagement portion of the support plate 15, and the scissors limit matching portion of the scissors foot support 16 cooperates with the support plate opening limit arc surface on the support opening limit portion, the support plate support portion and the lower scissors support portion Support coordination.
  • the support portion of the support plate is formed by the upper plate surface of the support plate 15, and the lower support portion of the scissors is formed by the scissor-fitted arc 39, and the inverted engagement portion is formed by the inverted engagement arc 28a, and the support opening portion of the support plate is composed of
  • the plate opening limit is formed by a curved surface.
  • the positioning surface 57 can be located on the upper and lower end faces of the limiting through-holes of the scissors limiting through-holes, or on the upper and lower end faces of the limiting through-holes of the scissors limiting through-holes.
  • the upper and lower end faces of the limiting through hole are formed by the upper end surface of the limiting through hole and the lower end surface of the limiting through hole.
  • the scissors I limiting surface 56 and the scissors II limiting surface 57 are respectively located at the upper end surface of the limiting through hole and the lower end surface of the limiting through hole. .
  • a support plate opening I limit arc 55 and a support plate opening limit arc 54 are arranged on one of the support opening limits of the support plate, so that the support plate opening I limit arc 55 and the scissors I limit surface 56 are matched and supported.
  • the plate opening II limit arc 54 is engaged with the scissors II limiting surface 57, and ensures that the center of the plate opening I limit arc 55 is located near the contact point of the lower scissors support portion and the support portion of the support plate.
  • the supporting pair of scissor foot supports 16 limits the displacement of the scissor foot support 16 in the horizontal direction when the angle a decreases, thereby ensuring that the key cap moves up and down in parallel, and the support plate opening I is limited to the arc 55 and the plate opening II
  • the limit arc 54 makes the face matching scheme more perfect.
  • the left scissor foot support 16 is erected downwardly into the support plate and the X-bend side 43 of the support plate cantilever plate 42 and the support plate opening limit arc bend
  • the space between the plates 52, the right side of the scissor foot support 16 is erected downwardly into the space between the support plate and the support plate of the support plate and the support opening of the support plate to the X-bend edge 43 to the scissors
  • the lower end of the foot support 16 is in contact with the support plate 15.
  • the scissor foot support 16 on the left side rotates inwardly, and the support plate opening limit arc 54 on the outer side of the support plate opening limit arc bending plate 52 is gradually supported by the scissors foot on the left side through the scissors II limiting surface 57.
  • the lower fitting portion of the 16 is inserted into the space between the strut panel 42 and the upper surface of the support plate 15.
  • the scissors foot support 16 on the right side rotates inward, and the plate surface on the outer side of the plate opening installation bending plate 53 is supported by the end face of the through hole on the scissors foot support 16 to gradually support the scissors foot on the right side.
  • the lower mating portion is inserted into the space between the strut panel 42 and the upper surface of the support plate 15.
  • the scissor foot support 16 forms a mutual support structure to complete the installation.
  • a support opening limit portion is provided at an opening of the mating space between the support plate 42 and the support plate 15, so that the key cap is more convenient to install, especially when the key cap is manually mounted on the scissor support 16 During the installation process, the scissor foot support 16 is disengaged from the opening of the mating space between the support plate 42 and the support plate 15 to affect the installation of the key cap, which makes the key cap installation more convenient and quick.
  • a support opening limit portion is provided at an opening of the mating space between the support plate 42 and the support plate 15, so that the rotary mounting of the scissor support 16 is more convenient.
  • the scissor support 16 rotates.
  • the support opening portion of the support plate gradually pushes the scissor foot support 16 into the mating space between the support plate and the support plate 15, so that the lower plate upper surface 41 of the scissors is matched with the inverted engagement portion, which is convenient Manual installation increases the reliability of the automatic mounting of the scissor foot support 16.
  • the mating portion of the support plate 15 is composed of an inverted engagement arc 28a on the support cantilever plate 42, a support opening limit arc bending plate 52, and an upper plate surface of the support plate 15.
  • the support plate cantilever plate 42 is bent from the support plate with the Y bend 40 is formed inwardly.
  • the support plate opening limit arc bending plate 52 is provided with a support plate opening I limit arc 55 and a support plate opening II limit arc 54; wherein the support plate opening I limit arc 55 and the scissors I limit surface 56 are limited With the position matching, the support opening II limit arc 54 is matched with the scissors II limit surface 57.
  • the center of the support plate opening I limit arc 55 is located in the vicinity of the contact point between the lower support portion of the scissors and the support portion of the support plate, and the coordinates of the contact point between the lower support portion of the scissors and the support portion of the support plate are X: 0 mm, Y: 0 mm,
  • the center of the opening of the support plate is located in the range of X: ⁇ 0.7mm and Y: ⁇ 0.9mm of the contact point of the lower support portion of the scissors and the support portion of the support plate, but the arc of the support plate is limited by the opening of the support plate.
  • the center of the circle is preferably in the range of X: ⁇ 0.35 mm and Y: ⁇ 0.6 mm where the contact point between the lower support portion of the scissors and the support portion of the support plate is the base point.
  • the distance L between the support opening portion of the support plate and the cantilever end of the support plate 42 is ⁇ the thickness B of the scissor support 16; the lower support portion of the scissors, the lower plate upper surface 41 of the scissors and the support portion of the support plate, and the support
  • the inverted engagement portion of the plate 15 is mated, and the scissors I limiting surface 56 is matched with the support plate opening I limiting arc 55 with a small clearance.
  • the inverted engaging portion of the support plate 15 is kept in contact, and the key cap 1 is moved in parallel up and down.
  • the scissor foot support 16 rotates, the arc surface formed by the movement track of the point on the scissor foot support 16 and the support plate opening I limit arc 55 coincide.
  • the lower support portion of the scissors is kept in contact with the support portion of the support plate, and the key cap 1 is moved up and down in parallel.
  • the scissors limit fitting portion is in contact with the limit arc 55 of the support plate opening I, a certain point on the upper surface of the upper surface 41 of the scissors The motion track coincides with the inverted buckle.
  • the support plate opening I limit arc 55 and the support plate opening II limit arc 54 are the same center.
  • the distance between the scissors I limiting surface 56 to the contact point of the lower scissors support portion and the upper surface of the support plate support portion is L1
  • the radius R1 of the support plate opening I limit arc 55 is L1 ⁇ 0.35 mm.
  • the center of the limit plate 55 of the plate opening I and the matching arc 39 of the scissors are the same as the center of the circle, the center of the inverted joint is the same as the center of the arc of the scissors, and the opening of the plate is limited.
  • the scissor foot support 16 is rotatably engaged with the support plate 15, and the upper end surface of the limit through hole is provided with a through hole upper end extending surface 56a, and the scissors I limiting surface 56 is located therethrough. The upper end of the hole is extended on the surface 56a.
  • the matching cutting point of the plate opening limit arc surface and the scissors limit matching portion is located at the scissor foot support 16 Below the lower plate surface, the cutting point is matched with the downward extending surface of the scissors limit fitting portion.
  • the lower scissors support portion is formed by a corner portion formed by the lower end surface 38 of the scissors and the lower end portion of the scissor foot support 16, and the corner portion may be punched down.
  • the center of the opening of the support plate is located on the upper plate of the scissor foot support 16
  • the matching cutting point of the limiting opening of the supporting plate and the matching portion of the scissors is located above the upper surface of the scissor foot support 16, and is matched with the cutting point and located on the extending surface of the scissors limiting portion.
  • the center of the opening of the support plate is located between the upper and lower plates of the scissor foot support 16, and the matching cut point of the support opening of the support plate and the coordinate of the scissors is located at the support of the scissor foot.
  • the cutting point is matched with the upper and lower end faces of the limiting through hole.
  • the matching cut point of the support opening of the support plate and the coordinate of the scissors is located at the upper and lower sides of the scissor support 16
  • the neutral surface between the plates is matched with the cutting point and located on the upper and lower end faces of the limiting through hole.
  • the rest is the same as in the first embodiment.

Landscapes

  • Push-Button Switches (AREA)

Abstract

一种配合部为面面配合并有剪刀限位配合面的键开关装置，包括键帽（1）、复位体（11）、开关回路（12）、有配合部的支撑板（15）、有上下配合部的剪刀脚支撑（16），剪刀脚支撑通过上下配合部分别与键帽、支撑板的配合部转动或滑动连接，剪刀脚支撑通过相互之间力的传递构成同步联动支撑结构，以确保键帽平行于支撑板作升降运动，支撑板的配合部由支板支撑部、位于支板悬臂板（42）上的倒扣配合部（28a）及至少一个支板开口限位部构成，支板开口限位部设置在支板悬臂板与支撑板之间的配合空间的开口处，支板开口限位部上设置有支板开口限位弧面。该金属剪刀脚结构的键开关装置可应用于计算机键盘、掌上型电脑、各类嵌入式键盘及进行敲键操作的键开关装置，其提高了剪刀脚支撑结构强度及结构刚度，实现了金属剪刀脚超轻、超薄，并进一步实现键装置的小型化。

Description

一种配合部为面面配合并有剪刀限位配合面的键开关装置
优先权声明：
本发明权利要求6及权利要求7要求2015-06-15向中国国家知识产权据递交的申请号为2015103291395的发明专利申请的权利要求及相应的实施例的优先权。
本发明权利要求8至权利要求12要求2015-05-09向中国国家知识产权据递交的申请号为2015102320193的发明专利申请的权利要求及相应的实施例的优先权。
本发明权利要求1至权利要求26要求2016-02-24向中国国家知识产权据递交的申请号为2016100992218的发明专利申请的权利要求及相应的实施例的优先权。
本发明权利要求1至权利要求26要求2016-05-05向中国国家知识产权据递交的申请号为2016102914177的发明专利申请的权利要求及相应的实施例的优先权。
技术领域
本发明涉及进行敲键操作的键开关装置；；特别涉及装载在作为电子仪器的输入装置的键盘中的键开关装置。本发明还涉及设有多个这种键开关装置的键盘。
背景技术
在装配于笔记本电脑型或掌上型计算机等便携式电子装置中的薄型，即低高度型键盘中，要求进行击打操作的键开关装置的低高度化，并且提高其操作性即手感好-----。一般情况下，能够在低高度型键盘中使用的键开关装置设有：支撑板(例如，金属薄板或键盘的下部底板)；设置在支撑板上方的键帽；相互联动并安装在支撑板的上方的朝竖直方向导引并支承键帽的一对塑料剪刀脚部件；对应于键帽的升降运动开闭电路的触点部的开关机构。通过一对塑料剪刀脚部件相互同步联动，键帽能够相对于支撑板、朝实质上垂直方向保持平行于支撑板的姿态，同时进行升降运动。键开关装置的敲键操作特性会受到键帽的升降动作的行程量、塑料剪刀脚部件的刚性、塑料剪刀脚部件与键帽配合间隙，以及伴随升降动作中所谓敲键感觉的敲键操作特性的影响。现有笔记本型或掌上型计算机等便携式电子装置中普遍采用薄型塑料X支撑结构装置。参见图1、图2现有键盘的键结构装置包括键帽1、弹性体11、有开关回路12、有配合部的支撑板15、有上下配合部的剪刀脚支撑16，剪刀脚支撑16通过上下配合部分别与键帽1、支撑板15的配合部转动或滑动连接，从侧面看呈X状安装的剪刀脚支撑16通过中部附近相互之间力的传递构成同步联动支撑结构，以确保键帽1平行于支撑板15升降运动。
本实施例的开关回路采用常用的有开关回路12，即薄膜开关片，开关回路可以是任 何电子线路能检测键按下的开关回路。其中支撑板15的配合部由支板转动部13及支板滑动部14构成，剪刀脚支撑16(均由塑料生产)由右剪刀脚4及左剪刀脚8构成，剪刀脚支撑16的上下配合部分别由下铰轴9、下滑轴7及剪刀上转动部10、剪刀上滑动部6构成，同步联动支撑结构由右剪刀脚4上的中枢轴5与塑料左剪刀脚8上的外框中枢孔5c铰接构成。
此装置通过塑料制成的右剪刀脚4上的中枢轴5与塑料制成的左剪刀脚8上的中枢孔铰接，下铰轴9及下滑轴7分别与支撑板15上的支板转动部13及支板滑动部14呈转动配合、滑动配合。剪刀上转动部10及剪刀上滑动部6分别与键帽1上的键帽滑动部3及键帽转动部2呈滑动配合、转动配合，形成塑料X支撑结构装置，并通过呈圆拱状弹性体--橡胶弹圈11将键帽1向上顶起，左剪刀脚8及右剪刀脚4的联动部由分别位于剪刀脚臂中部附近的中枢轴5与中枢孔5c转动配合构成；左剪刀脚8、右剪刀脚4分别与键帽1及支撑板15连接的连接部由分别分布在剪刀脚臂上端或下端的剪刀上转动部10、下滑轴7及剪刀上滑动部6、下铰轴9构成，本实施例的复位体由弹性体构成，弹性体由橡胶弹圈11构成，复位体也可采用常用的金属弹片，复位体也可采用常用的相互排拆的磁性体。
橡胶弹圈11被安装固定在有开关回路12上表面并与对应，有开关回路12被安装固定在支撑板15的上表面，支撑板15上的支板转动部13及支板滑动部14穿过有开关回路12上的相应贯穿孔，并位于有开关回路12上表面上方附近。
参见图1、图2、键帽1的配合部键帽滑动部3或键帽转动部2构成，其中键帽滑动部3由键竖立限位挡3a、键倒扣配合面3c、键配合平面3b构成，键竖立限位挡3a、键倒扣配合面3c、键配合平面3b光滑连接在一起，键帽转动部2开口向下，键帽转动部2与剪刀上转动部10转动配合。
参见图2、塑料左剪刀脚8的剪刀上滑动部6被上下位置相对应的键倒扣配合面3c、键配合平面3b限制上下两个自由度，键帽1上下移动时，剪刀上滑动部6在键倒扣配合面3c、键配合平面3b之间的空间内滑动，键帽1在无外力作用时，在橡胶弹圈11的弹力作用下，键帽1的剪刀上滑动部6被压在键竖立限位挡3a上，此时键帽1处于上极限位，现有键帽1的配合部的键倒扣配合面3c、键配合平面3b、键竖立限位挡3a均设置在同一结构内。
现有塑料键帽1的塑料弹性限位结构存在的问题：
从键盘诞生以来，笔记本键盘的键帽1上均设置塑料弹性限位结构，参见图2--1至图2--5、在键帽1安装时，先将键帽滑动部3安装在剪刀上滑动部上，再向下旋转键帽至键帽转动部2与剪刀上转动部10接触，在压入过程中，键帽转动部2的两片短粗的塑料弹性限位结构约需产生单边0.15mm的变形，变形后进入键帽转动部2的配合空间，两片短粗的塑料弹性限 位结构的宽度B1约为0.7mm，长度H1约为1.6mm，B1/H1＝0.4375，由于塑料是塑性材料，短粗的塑料弹性限位结构弹性差、强度低、限位的过盈量小，加之笔记本键盘越做越薄，键帽转动部2的两片短粗的塑料弹性限位结构(H1尺寸)限制了键帽1低高度的设计，同时，由于注塑缺陷的影响及键帽转动部2的两片短粗的塑料弹性限位结构的模具需斜拔结构等。造成键帽转动部2的两片短粗的塑料弹性限位结构出厂不良率及使用过程中不良率较高。
1、笔记本键盘的键帽1在出厂后，脫落问题非常突出，笔记本键盘的掉键及开关触点失效问题是目前笔记本键盘最突出的两大急待解问题；
2、笔记本键盘的键帽1的塑料弹性限位结构有注塑缺陷的影响；
3、笔记本键盘的键帽1的短粗的塑料弹性限位结构的配合过盈量为单边0.15mm，当该配合过盈量过小时，易出现掉键现象；当该配合过盈量过大时，易出现键帽转动部2的两片短粗的塑料弹性限位结构断裂失效及埋下断裂失效的隐患；
4、两片短粗的塑料弹性限位结构弹性差、强度低；
5、注塑精度低于薄板的冲压精度，精密注塑--小尺寸的结构注塑件公差0.08mm，线性尺寸冲压---薄板的冲压精度0.026mm，薄板的冲压折弯精度0.5度；
6、减薄键帽，势必缩短--短粗的塑料弹性限位结构，短粗的塑料弹性限位结构缩短，造成短粗的塑料弹性限位结构弹力下限，限制了键帽的进一步低高度化设计。
现有的钣金剪刀脚支撑存在的问题：
参见图3、图4、图5、钣金冲压成型的剪刀脚支撑16采用0.25mm-0.7mm厚的板面上成型，剪刀脚支撑16的上配合部、下配合部由分别位于剪刀脚臂18上端、下端的上端板面延伸凸台23、下端板面延伸凸台24构成，上端板面延伸凸台23、下端板面延伸凸台24经冲裁钣金成型为截面呈方形的凸台，上端板面延伸凸台23、下端板面延伸凸台24可冲压倒角去毛剌(倒角可倒成直面，也可以是圆弧面，也可以是倒圆弧面)，剪刀脚支撑16由左刚性剪刀脚25及右刚性剪刀脚26组成。
在剪刀脚支撑16的两个剪刀脚臂18的内侧、外侧，有两个从剪刀脚支撑16的板面并沿剪刀脚臂18长度方向同向延伸的延伸板面19，延伸板面19并沿剪刀脚臂18厚度方向向下折弯，延伸板面19的悬臂端部有冲压成型的冲压悬臂弧21，冲压悬臂弧21位于剪刀脚臂18下板面附近并位于剪刀脚臂18长度方向的中部附近，剪刀上支撑面20位于剪刀脚臂18下板面的中部附近，是呈平直板面的剪刀脚臂18下板面的一部分。
现有的采用钣金剪刀脚支撑16的键结构装置包括键帽1(图中未表示)、弹性体11(图中未表示)、有开关触点的开关回路12、有配合部的支撑板15、有上下配合部的剪刀脚支撑 16，剪刀脚支撑16的上端板面延伸凸台23的角部、下端板面延伸凸台24的角部(本图的角部已倒为圆角)分别与键帽1的配合部、支撑板15的配合部转动或滑动连接，其中一个剪刀脚支撑16的剪刀上支撑面20、冲压悬臂弧21与另一个剪刀脚支撑16的冲压悬臂弧21、剪刀上支撑面20相互支撑，形成中部附近相互之间力的传递构成同步联动支撑结构，以确保键帽1平行于支撑板15升降运动。
当键帽1被按下时，键帽1克服弹性体11(图中未表示)的弹力推动左刚性剪刀脚25及右刚性剪刀脚26的上配合部沿键帽1的下表面向外移动、左刚性剪刀脚25及右刚性剪刀脚26的下配合部与支撑板15的配合部转动配合或滑动配合，同时冲压悬臂弧21沿剪刀上支撑面20滑动；键帽1向下移动至键帽1的底面与有开关触点的开关回路12接触即达下极限位，至下极限位时弹性体11内的凸台(图中未表示)触发有开关触点的开关回路12上的开关电路(图中未表示)，当键帽1的外力去掉后，在弹性体11(图中未表示)的弹力作用下，键帽1复位至上极限位。
与钣金剪刀脚支撑相比较，现普遍采用的塑料剪刀脚支撑存在强度差、刚度差、精度差，且注塑生产存在注塑缺陷，不能实现键盘进一步低高度化，剪刀脚支撑结构复杂很难实现自动化安装等，同时，剪刀脚支撑采用注塑生产效率远低于采用步进模的生产效率，步进模也称高速模具，其具有高效率、高寿命、高精度，被称为现代三高模具，钣金剪刀脚支撑替代现普遍采用的塑料剪刀脚支撑是大势所趋。但现有的钣金剪刀脚支撑存在的下列问题影响其全面推广。
钣金剪刀脚支撑虽然具有强度高、刚度高、生产效率高、生产设备成本低等优点。但现有的钣金剪刀脚支撑讲存在以下问题：
1.剪刀脚支撑16的上配合部、下配合部均由冲裁钣金成型为截面呈方形的凸台，由截面呈方形的凸台的角部分别与键帽、支承板的配合部配合，使用过程中，剪刀脚支撑16的凸台的角部会加速键帽、支承板的磨损，造成剪刀脚支撑、键帽、支承板精度丧失快；
2.将截面呈方形的凸台的角部采用倒角工艺----可倒成直面、圆弧面、倒圆弧面，钣金的倒角工艺难度较大(特别是采用较薄的金属板时)，且存在倒角精度差、表面光洁度差等问题；
3.当剪刀脚支撑16采用非常薄的金属板时，如采用0.1mm---0.2mm的金属板，将截面呈方形的凸台的角部倒角是不可能实现的任务，截面呈方形的凸台的厚度薄到一定程度就成了刀片；
4.当剪刀脚支撑16采用较薄的金属板时(如采用0.08mm---0.2mm的金属板)，键倒扣配合面3c与键配合平面3b之间的空间无法注塑生产(参见图3--图5键倒扣配合面3c与键配合 平面3b位置相对应)，该空间的高度尺寸为0.08mm---0.15mm时，注塑模具采用0.08mm---0.15mm的合金薄片抽芯，该薄片既无法加工又无强度；
5.剪刀脚支撑16的配合部无法倒太大的圆角，而无法采用现在流行的键帽安装方法，无法采用现在流行的剪刀脚支撑16的安装方法；
6.现有的钣金剪刀脚支撑采用0.4mm以上的板厚，材料成本高，影响了实现键盘进一步低高度化(两个现有的钣金剪刀脚支撑叠在一起达0.8mm厚)。
怎样提高剪刀脚支撑、键帽、支承板耐磨性能；怎样采用较薄的金属板生产剪刀脚支撑以降低材料成本，同时实现键盘进一步低高度化，是现有的钣金剪刀脚支撑能否替代现普遍采用的塑料剪刀脚支撑问题所在。
发明内容
本发明的目的在于：本发明提供一种冲压工艺简单并采用剪刀脚支撑的光滑板面实现与键帽、支承板的高精度配合的面面配合，以及通过设置支板开口限位部方便了剪刀脚支撑的旋转安装，通过支板开口限位部上设置的支板开口限位弧面实现与剪刀脚支撑高精度配合，并将弹性限位结构设置在薄片金属剪刀脚上，彻底解决了现有笔记本键盘掉键的老大难问题。
本发明的技术方案是这样实现的：本发明的一种配合部为面面配合并有剪刀限位配合面的键开关装置包括键帽、复位体、开关回路、有配合部的支撑板、有上下配合部的剪刀脚支撑，剪刀脚支撑通过上下配合部分别与键帽、支撑板的配合部转动或滑动连接，剪刀脚支撑通过相互之间力的传递构成同步联动支撑结构，以确保键帽平行于支撑板作升降运动，其特征是：所述支撑板15的配合部由支板支撑部、位于支板悬臂板42上的倒扣配合部及至少一个支板开口限位部构成，所述支板开口限位部设置在支板悬臂板42与支撑板15之间的配合空间的开口处，所述支板开口限位部上设置有支板开口限位弧面；
剪刀下端上板面41与支撑板15的倒扣配合部配合，剪刀脚支撑16的剪刀限位配合部与支板开口限位部上的支板开口限位弧面配合，支板支撑部与剪刀下支撑部支撑配合；
支板开口限位弧面由支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54构成，剪刀限位配合部由剪刀Ⅰ限位面56、剪刀Ⅱ限位面57构成，其中，支板开口Ⅰ限位弧55与剪刀Ⅰ限位面56限位配合，支板开口Ⅱ限位弧54与剪刀Ⅱ限位面57限位配合；
所述支板开口Ⅰ限位弧55的圆心位于相邻的支撑板15的配合部的附近。
进一步的是：所述支板开口限位部与支板悬臂板42的悬臂端的间距L≥剪刀脚支撑16的板厚B。
进一步的是：所述支板开口Ⅰ限位弧55的圆心位于剪刀下支撑部与支板支撑部的接 触点的附近。
进一步的是：所述支撑板15上设置有支板开口限位弧折弯板52、支板开口安装折弯板53、支板配合X折弯边43；支板开口限位弧折弯板52沿Y方向90度折弯，支板配合X折弯边43沿X方向折弯向内折弯，支板开口安装折弯板53沿X方向折弯或沿Y方向90度折弯，支板悬臂板42与支板配合X折弯边43成夹角并沿X方向向内延伸，倒扣配合部位于支板悬臂板42的悬臂端侧的下表面；支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54位于支板开口限位弧折弯板52上。
进一步的是：所述支撑板15上设置有支板开口限位弧折弯板52、支板开口安装折弯板53、支板配合Y折弯边40；支板开口限位弧折弯板52沿Y方向90度折弯，支板配合Y折弯边40沿Y方向90度折弯，支板开口安装折弯板53沿X方向折弯或沿Y方向90度折弯，支板悬臂板42与支板配合Y折弯边40成夹角并沿X方向向内延伸，倒扣配合部位于支板悬臂板42的悬臂端侧的下表面；支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54位于支板开口限位弧折弯板52上。
进一步的是：所述剪刀脚支撑16成型有有弹性的钣金弹性臂，所述剪刀脚支撑16有冲压成型的剪刀防脱结构；在键帽1上设置有键限位凸台30，所述相互支撑的剪刀脚支撑16通过剪刀防脱结构与键帽1的键限位凸台30限位配合，阻止键脱出或将键帽1限制在上极限位。
进一步的是：所述剪刀脚支撑16成型有有弹性的钣金弹性臂，所述剪刀脚支撑16有冲压成型的剪刀防脱结构；在键帽1上设置有键端部限位面31，所述相互支撑的剪刀脚支撑16通过剪刀防脱结构与键帽1的键端部限位面31限位配合，阻止键脱出或将键帽1限制在上极限位。
进一步的是：所述剪刀脚支撑16的上配合部由剪刀上支承部、剪刀脚支撑16的剪刀上端下板面36、剪刀防脱结构构成，其中，剪刀上支承部与键帽1的键帽支撑配合部配合，位于所述剪刀脚支撑16上端的剪刀上端下板面36与键帽1的上的键倒扣凸台28上的倒扣配合部配合。
进一步的是：所述剪刀下支撑部由位于剪刀脚支撑16下端的剪刀冲压下配合弧39构成，剪刀冲压下配合弧39由冲压剪刀脚支撑16位于左右两侧的板面形成的圆弧构成，剪刀冲压下配合弧39位于剪刀脚支撑16的下板面。
进一步的是：所述剪刀脚支撑16通过剪刀上端上板面35与剪刀上端下板面36间的厚度尺寸与键帽的配合部转动或滑动连接。
进一步的是：所述支撑板15的倒扣配合部与支板支撑部之间的距离尺寸与所述剪刀脚支撑16的剪刀下端上板面41至剪刀下端下板面38之间的距离尺寸采用过渡配合。
进一步的是：所述剪刀脚支撑16的上配合部由剪刀上支承部、剪刀脚支撑16的剪刀上端下板面36、独立设置的剪刀防脱结构构成，剪刀上端下板面36呈平面状，所述倒扣配合部由倒扣配合弧28a构成，所述剪刀上支承部由剪刀脚支撑16的上板面构成。
进一步的是：支撑板15的配合部由支板支撑部、支撑板15的支板悬臂板42上的倒扣配合部及两个支板开口限位部构成，其中一个支板开口限位部设置有支板开口Ⅰ限位弧55及支板开口Ⅱ限位弧54，剪刀限位配合部设置在剪刀脚支撑16下端的左侧或右侧。
进一步的是：所述剪刀下支撑部与支板支撑部的接触点的座标为X：0mm、Y：0mm，所述支板开口限位弧面的圆心位于剪刀下支撑部与支板支撑部的接触点为基点的X：±0.65mm、Y：±0.85mm的范围内。
进一步的是：支板开口Ⅰ限位弧55的圆心与剪刀冲压下配合弧39同圆心，倒扣配合部的圆心与剪刀冲压下配合弧39同圆心，支板开口Ⅰ限位弧55与支板开口Ⅱ限位弧54同圆心时，剪刀脚支撑16与支撑板15转动配合。
进一步的是：支板开口Ⅰ限位弧55与支板开口Ⅱ限位弧54同圆心。
进一步的是：所述剪刀Ⅰ限位面56至剪刀下支撑部与支板支撑部的上表面的接触点的距离为L1，支板开口Ⅰ限位弧55的半径R1＝L1±0.35mm。
进一步的是：在剪刀脚支撑16下端的左侧或右侧有剪刀限位贯穿孔，剪刀Ⅰ限位面56、剪刀Ⅱ限位面57位于剪刀限位贯穿孔的限位贯穿孔上下端面上。
进一步的是：在剪刀脚支撑16下端的左侧或右侧有剪刀限位贯穿孔，剪刀Ⅰ限位面56、剪刀Ⅱ限位面57位于剪刀限位贯穿孔的限位贯穿孔上下端面的延伸面上。
进一步的是：支板开口限位弧面的圆心位于剪刀脚支撑16的上下板面之间时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上下板面之间，配合切点并位于限位贯穿孔上下端面上。
进一步的是：支板开口限位弧面的圆心位于剪刀脚支撑16的上下板面之间的中性面时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上下板面之间的中性面上，配合切点并位于限位贯穿孔上下端面上。
进一步的是：支板开口限位弧面的圆心位于剪刀脚支撑16的上板面的上方时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上板面的上方，配合切点并位于剪刀限位配合部向上的延伸面上。
进一步的是：支板开口限位弧面的圆心位于剪刀脚支撑16的下板面的下方时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的下板面的下方，配合切点并位于剪刀限位配合部向下的延伸面上。
进一步的是：剪刀下支撑部、呈平面板状的剪刀下端上板面41与支板支撑部、支撑板15的倒扣配合部过渡配合，剪刀Ⅰ限位面56与支板开口Ⅰ限位弧55小间隙配合。
进一步的是：剪刀下支撑部、呈平面板状的剪刀下端上板面41分别与支板支撑部、支撑板15的倒扣配合部保持接触，键帽1上下平行移动，剪刀脚支撑16旋转时，剪刀脚支撑16上某点的运动轨迹形成的弧面与支板开口Ⅰ限位弧55重合。
进一步的是：所述剪刀下支撑部与支板支撑部保持接触，键帽1上下平行移动，剪刀限位配合部沿支板开口Ⅰ限位弧55接触滑动时，剪刀下端上板面41的板面上某点的运动轨迹与倒扣配合部重合。
本发明的积极效果是：
采用超薄的剪刀脚支撑实现与键帽、支承板的面面配合带来的积极效果是：
1.采用剪刀脚支撑的上下光滑平直板面分别实现与键帽、支承板的面面配合，大幅提高了配合精度，提高了各零件间的耐磨性，键开关装置经久耐用；
2.剪刀脚支撑16的上配合部由平直板面及独立设置的剪刀防脱结构构成，简化了剪刀脚支撑16的冲压工艺、提高了剪刀脚支撑16的加工精度；
3.将剪刀脚支撑16与键帽的配合面与剪刀防脱结构分开设置，使剪刀脚支撑16与键帽的配合面的板面呈简单的平面状，该呈平面状的板面无需加工，提高了配合精度及加工精度(钣金的冲压次数越多加工精度越差即钣金塑性变形所次数越多加工精度越差)；
4.剪刀脚支撑16的下配合部由呈平面状的剪刀下端上板面41、剪刀限位配合部、剪刀下支撑部构成，只需将剪刀脚支撑16的下端左右两侧的板面折弯，即形成弧形面状的剪刀下支撑部，由呈平面状的剪刀下端上板面41及弧形面状的剪刀下支撑部与支撑板15的配合部形成面面配合，提高了配合精度及加工精度；
5.在支板悬臂板42与支撑板15之间的配合空间的开口处设置支板开口限位部，使键帽安装更方便，特别是手工将键帽安装在剪刀脚支撑16上时，避免了键帽在安装过程中，剪刀脚支撑16从支板悬臂板42与支撑板15之间的配合空间的开口处脱出而影响键帽安装的现象，使键帽安装更方便快捷；
6.在支板悬臂板42与支撑板15之间的配合空间的开口处设置支板开口限位部，使旋转安装剪刀脚支撑16更方便，剪刀脚支撑16旋转安装时，剪刀脚支撑16旋转，支板开口限位部将 剪刀脚支撑16逐步顶入支板悬臂板42与支撑板15之间的配合空间，使呈平面状的剪刀下端上板面41与倒扣配合部形成配合，既方便手工安装，又提高了自动安装剪刀脚支撑16的可靠性；
7.在其中一个支板开口限位部上设置支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54，实现支板开口Ⅰ限位弧55与剪刀Ⅰ限位面56限位配合，支板开口Ⅱ限位弧54与剪刀Ⅱ限位面57限位配合，同时确保支板开口Ⅰ限位弧55的圆心位于剪刀下支撑部与支板支撑部的接触点的附近，该方案使相互支撑的一对剪刀脚支撑16在a角减小时，限制剪刀脚支撑16沿水平方向的位移量，从而确保键帽更平行地上下移动，置支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54，使面面配合方案更完善；
8.采用厚度超薄的剪刀脚支撑，成倍降低剪刀脚支撑的厚度，进一步实现键低高度化；
9.独立设置的剪刀防脱结构由金属弹性限位结构构成，薄片金属剪刀脚的弹性限位结构弹性好、强度高、可增加限位的过盈量(最大可达0.5mm)，使键帽与薄片金属剪刀脚的限位配合可靠性高。键帽1成为免维护的全刚性结构，大幅降低了键帽1出厂不良率，并彻底解决了现有笔记本键盘使用时掉键的老大难问题；
10.薄片金属剪刀脚的弹性限位结构无注塑缺陷，薄片金属剪刀脚的弹性限位结构不会出现断裂失效。变形失效的隐患；
11.可进一步实现键帽的低高度化设计，成倍降低剪刀脚支撑的材料成本，铝合金剪刀脚支撑的厚度由现在的0.4mm减薄为0.15mm；钢质剪刀脚支撑的厚度由现在的0.4mm减薄为0.08mm；
12.取消了角部的倒角工艺，简化了剪刀脚支撑的冲压工艺；
13.键帽的配合部采用键倒扣配合面3c与键配合平面3b沿键的宽度方向排列，即键倒扣配合面3c位于键配合平面3b旁，彻底解决了采用厚度超薄的剪刀脚支撑时，键帽的配合部因键倒扣配合面3c与键配合平面3b之间的间；
14.取消了与键倒扣配合面3c连为一体的键竖立限位挡3a，而将键限位结构独立设置，键帽的键倒扣配合面3c开口向内，并在键倒扣配合面3c设置前斜面为实觋键帽于上极限位的全新安装创造了条件；(现有采用塑料剪刀脚支撑的键开关装置，塑料剪刀脚支撑位于下极限位时，键帽实现安装)
该金属剪刀脚结构的键开关装置可广泛应用于计算机键盘、掌上型电脑、各类嵌入式键盘及进行敲键操作的键开关装置。剪刀脚支撑结构强度及结构刚度大幅提高，金属剪刀脚实现了超轻、超薄并进一步实现键装置的小型化。
该面面配合的剪刀脚支撑的键开关装置可广泛应用于计算机键盘、掌上型电脑、各类嵌入式键盘及进行敲键操作的键开关装置。本发明成倍降低剪刀脚支撑的材料成本，简化了剪刀脚支撑的冲压工艺，大幅提高了各零件的配合精度、提高了各零件间的耐磨性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是一个键帽的现有塑料剪刀脚支撑结构装置的组成结构图；
图2是一个键帽的现有塑料剪刀脚支撑结构装置的连接关系图；
图2-1是一个采用现有塑料剪刀脚支撑的现有键帽的安装过程图；
图2-2是一个采用现有塑料剪刀脚支撑的现有键帽的安装过程图；
图2-3是一个采用现有塑料剪刀脚支撑的现有键帽的安装过程图；
图2-4是一个采用现有塑料剪刀脚支撑的现有键帽的安装过程图；
图2-5是一个采用现有塑料剪刀脚支撑的现有键帽的安装过程图；
图3是一种现有的钣金剪刀脚支撑处于上极限位的键装置剖视图；
图4是一种现有的钣金剪刀脚支撑处于下极限位的键装置剖视图；
图5是一种现有的钣金剪刀脚支撑处于下极限位的键装置剖视图；
图6是本发明的键帽的立体图；
图7是本发明的剪刀脚总装好的键装置于上极限位的立体图；
图8是本发明的剪刀脚总装好的键装置于上极限位的立体图；
图9是本发明的键装置的主视图；
图10是图9的侧视图；
图11是图9的A-A剖视图；
图12是本发明的呈八型安装的剪刀脚支撑的键装置的键帽的立体图；
图13是本发明的呈八型安装的剪刀脚支撑的键装置的立体图；
图14是本发明的呈八型安装的剪刀脚支撑的键装置的主视图；
图15是图14的C-C剖视图；
图16是图14的B-B剖视图；
图17是图14的D-D剖视图；
图18是本发明的呈倒置八型安装的剪刀脚支撑的键装置的剖视图；
图19是本发明的呈倒置八型安装的剪刀脚支撑的键装置的剖视图；
图20是本发明的呈倒置八型安装的剪刀脚支撑的键装置的剖视图；
图21是本发明的有支板开口限位弧面的支承板15的立体图；
图22是本发明的有支板开口限位弧面的支承板15的键装置的立体图；
图23是本发明的有支板开口限位弧面的支承板15的键装置的主视图；
图24是图23的G-G剖视图；
图25是图23的F-F剖视图；
图26是图23的E-E剖视图；
图27是本发明的支承板15有支板开口限位部的剪刀脚支撑的旋转顶入安装图；
图28是本发明的支承板15有支板开口限位部的剪刀脚支撑的旋转顶入安装图；
图29是本发明的支承板15有支板开口限位部的剪刀脚支撑的旋转顶入安装图；
图30是本发明的支承板15有支板开口限位部的剪刀脚支撑的旋转顶入安装图；
图31是本发明的支承板15有支板开口限位部的剪刀脚支撑的旋转顶入安装图；
图32是本发明的支承板15有支板开口限位部的剪刀脚支撑的旋转顶入安装图；
图33是本发明的R1、R2、R3同圆心时剪刀脚支撑与支承板15转动配合示意图；
图34是本发明的R1、R2、R3同圆心时剪刀脚支撑与支承板15转动配合示意图；
图35是本发明的R1、R2、R3同圆心时剪刀脚支撑与支承板15转动配合示意图；
图36是本发明的支板开口限位弧面的R1的圆心位于剪刀脚支撑上板面示意图；
图37是本发明的支板开口限位弧面的R1的圆心位于剪刀脚支撑上板面示意图；
图38是本发明的支板开口限位弧面的R1的圆心位于剪刀脚支撑上板面示意图；
图39是本发明的支板开口限位弧面的R1的圆心位于剪刀脚支撑上板面示意图；
图40是图38剪刀脚支撑的R3＝0时，剪刀脚支撑的接触点为角部的示意图；
图41是图39剪刀脚支撑的R3＝0时，剪刀脚支撑的接触点为角部的示意图；
图42是本发明的支板开口限位弧面R1的圆心位于剪刀脚支撑上下板面之间示意图；
图43是本发明的支板开口限位弧面R1的圆心位于剪刀脚支撑上下板面之间示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都 属于本发明保护的范围。
实施例1
参见图6--图11、本发明的一种配合部为面面配合的键开关装置，包括键帽、复位体、开关回路、有配合部的支撑板、有上下配合部的剪刀脚支撑，剪刀脚支撑通过上下配合部分别与键帽、支撑板的配合部转动或滑动连接，剪刀脚支撑通过相互之间力的传递构成同步联动支撑结构，以确保键帽平行于支撑板作升降运动。
剪刀脚支撑16成型有有弹性的钣金弹性臂，剪刀脚支撑16有冲压成型的剪刀防脱结构；在键帽1上设置有键限位凸台30，在键限位凸台30的外侧设置有键端部限位面31，相互支撑的剪刀脚支撑16通过剪刀防脱结构与键帽1的键限位凸台30上的键端部限位面31限位配合，阻止键脱出或将键帽1限制在上极限位。
独立设置的剪刀防脱结构由金属钣金弹性臂及剪刀防脱结构构成，薄片金属剪刀脚的金属钣金弹性臂弹性好、强度高、可增加限位的过盈量(最大可达0.5mm)，使键帽与薄片金属剪刀脚的限位配合可靠性高。取消了键帽1上的弹性限位结构，从而使键帽1成为免维护的全刚性结构，大幅降低了键帽1出厂不良率，并彻底解决了现有笔记本键盘使用时掉键的老大难问题。薄片金属剪刀脚的弹性限位结构无注塑缺陷，薄片金属剪刀脚的弹性限位结构不会出现断裂失效、变形失效的隐患。
剪刀脚支撑16的上配合部由剪刀上支承部、剪刀脚支撑16的剪刀上端下板面36、剪刀防脱结构构成，其中，剪刀上支承部与键帽1的键帽支撑配合部配合，位于剪刀脚支撑16上端的剪刀上端下板面36与键帽1的上的键倒扣凸台28上的倒扣配合部配合；剪刀上端下板面36呈平面状，倒扣配合部由倒扣配合弧28a构成，剪刀上支承部由剪刀脚支撑16的呈平面状的剪刀上端上板面35构成。
剪刀下支撑部由位于剪刀脚支撑16下端的剪刀冲压下配合弧39构成，剪刀冲压下配合弧39由冲压剪刀脚支撑16位于左右两侧的板面形成的圆弧构成，剪刀冲压下配合弧39位于剪刀脚支撑16的下板面。本实施例采用：在剪刀脚支撑16的下部成型的剪刀下端折弯边37，剪刀冲压下配合弧39位于剪刀脚板面与剪刀下端折弯边37的折弯弧的下板面，呈圆弧面的剪刀冲压下配合弧39与支板支撑部配合。
剪刀脚支撑16通过剪刀上端上板面35与剪刀上端下板面36间的厚度尺寸与键帽的配合部转动或滑动连接；支撑板15的倒扣配合部与支板支撑部之间的距离尺寸与剪刀脚支撑16的剪刀下端上板面41至剪刀下端下板面38之间的距离尺寸采用过渡配合；支撑板15的倒扣配合部与支板支撑部间的距离≥剪刀脚支撑16的剪刀下端上板面41与剪刀下支撑部间 的距离。
剪刀脚支撑16的上配合部由剪刀上支承部、剪刀脚支撑16的剪刀上端下板面36、独立设置的剪刀防脱结构构成，剪刀上端下板面36呈平面状，倒扣配合部由倒扣配合弧28a构成，剪刀上支承部由剪刀脚支撑16的上板面构成。本实施例的支撑板15的配合部由支板支撑部、位于支板悬臂板42上的倒扣配合部构成。
参见图6、键帽内凹底面27的凸台上设置有键配合凸肩29，由独立设置的键配合凸肩29、独立设置的键帽的键倒扣凸台28、独立设置的键端部限位面31构成键帽的配合部。在键限位凸台30的内侧设置有键安装导向面30a，在键限位凸台30的外侧设置有键端部限位面31，在键帽1的宽度方向的两个配合部之间的键帽内凹底面的底面上，分别设置有左右一个刚性的键限位凸台30，键帽防脱结构由键限位凸台30上的键端部限位面31构成，键限位凸台30内侧有键限位凸台导向钭面30，键限位凸台30外侧设置有键端部限位面31。键帽的配合部由键配合凸肩29、键倒扣凸台28、键防脱结构构成，键倒扣凸台28的倒扣表面有倒扣配合部、倾钭的倒扣前斜面，键限位凸台30高于键倒扣凸台28，倒扣配合部位于键倒扣凸台28的下表面，键倒扣凸台28的下表面与倒扣前斜面的角部处为倒扣配合部(该角部为弧面最佳)，在键倒扣凸台28的悬臂端侧也可无倒扣前斜面，倒扣配合部位于键倒扣凸台28的下表面的悬臂端的角部(图中未表示)，该角部以成型弧面弧面(图中未表示)为佳，但以成型倒扣前斜面为最佳。倒扣配合部由倒扣配合弧28a构成。
参见图7、支撑板15的配合部由支板支撑部、位于支板悬臂板42上的倒扣配合部构成，支撑板15采用约0.5mm厚的铝合金制作，支撑板15有四个独立的沿Y方向90度分别向左右两侧折弯的支板配合Y折弯边40，四个支板配合Y折弯边40均有向内延伸的支板悬臂板42，在支板配合Y折弯边40的支板悬臂板42的悬臂端附近的下表面设置有倒扣配合部、倒扣前斜面。
在剪刀脚支撑16的下部均有沿X方向折弯剪刀脚板面成型的剪刀下端折弯边37，剪刀冲压下配合弧39位于剪刀脚板面与剪刀下端折弯边37的折弯弧处的下板面，呈圆弧面的剪刀冲压下配合弧39与支板支撑部配合，支板支撑部由支承板15的上平面构成或由支承板15上成型的凸台的上平面构成或由开关回路12的上表面构成(本图采用与开关回路12的上表面配合)。
参见图8、支撑板15采用0.1mm---0.2mm厚的钢板制作，支撑板15有四个独立的沿X方向并向内折弯的支板配合X折弯边43，在四个支板配合X折弯边43均有向内延伸的支板悬臂板42，支板悬臂板42的悬臂端侧有向上(Z方向)折弯的倒扣前斜面，支板悬臂板 42与倒扣前斜面的折弯处的下板面为倒扣配合部，在支板悬臂板42的悬臂端侧也可无倒扣前斜面，倒扣配合部位于支板悬臂板42的下板面的悬臂端的角部(图中未表示)，该角部以冲压成型弧面弧面(图中未表示)为佳，但以成型倒扣前斜面为最佳。
参见图6--图9、相互支撑的剪刀脚支撑16通过剪刀折弯限位挡33与键帽1的键限位凸台30的外侧设置的键端部限位面31限位配合，防止键帽脱出并将键帽1限制在上极限位。
支撑板15上的支板悬臂板42上或键帽1上的键倒扣凸台28上有倒扣配合部、倒扣前斜面，剪刀脚支撑16的剪刀下端上板面41或剪刀脚支撑16的剪刀上端下板面36与倒扣配合部配合；倒扣配合部与倒扣前斜面连接，倒扣前斜面位于倒扣配合部内侧；位于键倒扣凸台28上的倒扣前斜面向下倾斜或位于支撑板15上的折弯边上的倒扣前斜面向上倾斜。
键帽的配合部采用键倒扣凸台28、键配合凸肩29沿键的宽度方向排列，即键倒扣凸台28位于键配合凸肩29旁。
键倒扣凸台28、键配合凸肩29沿键的宽度方向排列，剪刀脚支撑16通过剪刀上端上板面35与剪刀上端下板面36间的厚度尺寸分别与键帽的键倒扣凸台28、键配合凸肩29配合；使键倒扣凸台28下表面至键帽内凹底面27的尺寸可做得很大，并可采用沿键的长度方向向内抽芯生产键帽，有利于采用极薄的钢质剪刀脚支撑(如采用厚度为0.08mm剪刀脚支撑)，彻底解决了采用厚度超薄的剪刀脚支撑时，键帽的配合部因键倒扣配合面3c与键配合平面3b之间的间距太小而无法注塑生产的难题。
采用剪刀脚支撑16的上下平直板面分别与键帽1、支撑板15配合，彻底简化了剪刀脚支撑16配合部，使采用厚度超薄的剪刀脚支撑，成倍降低剪刀脚支撑的材料成本，铝合金剪刀脚支撑的厚度由现在的0.4mm减薄为0.15mm；钢质剪刀脚支撑的厚度由现在的0.4mm减薄为0.08mm。采用厚度超薄的剪刀脚支撑，成倍降低剪刀脚支撑的厚度，进一步实现键低高度化。
参见图7--图8、支撑板15的配合部由支板支撑部、位于支板悬臂板42上的倒扣配合部构成，倒扣配合部由倒扣配合弧28a构成，倒扣配合弧28a是支板悬臂板42下板面的一部分，当倒扣配合弧28a的弧长无限接近于零时，倒扣配合弧28a是支板悬臂板42悬臂端的直线。
本实施例釆用向上折弯支板悬臂板42悬臂端侧的板面，在支板悬臂板42的下板面形成半径为R圆弧面，倒扣配合弧28a由该R圆弧面构成。
剪刀下支撑部由位于剪刀脚支撑16下端的剪刀冲压下配合弧39构成，剪刀冲压下配合弧39由冲压剪刀脚支撑16位于左右两侧的板面成型的剪刀下端折弯边37形成的圆弧构成， 剪刀冲压下配合弧39位于剪刀脚支撑16的下板面。
剪刀脚支撑16的上配合部由剪刀上端上板面35、剪刀上端下板面36、剪刀防脱结构构成。本实施例的剪刀防脱结构由独立设置的剪刀折弯限位挡33构成，在剪刀脚支撑16上部的左右两个端面之间有贯穿剪刀脚支撑16板面的剪刀上贯穿孔34，在剪刀上贯穿孔34下部端面有向上延伸形成的中钣金弹性臂32(钣金弹性臂由中钣金弹性臂32构成)，在钣金弹性臂32悬臂端设置有剪刀折弯限位挡33，本实施例的剪刀防脱结构由位于剪刀脚支撑16的两个上配合部之间的中部附近的折弯限位挡33构成，中钣金弹性臂32由剪刀脚支撑16上端的中部附近的贯穿孔的底部向上延伸形成的弹性悬臂形成。
中钣金弹性臂32也可由剪刀上贯穿孔34左部向右延伸或右部向左延伸形成(图中未表示)，剪刀折弯限位挡33位于中钣金弹性臂32的弹性臂上，中钣金弹性臂32也可由剪刀上贯穿孔34的左部延伸或右部延伸分别延伸至右部并连接或延伸至左部并连接形成(图中未表示)，剪刀折弯限位挡33位于中钣金弹性臂32的弹性臂上。
参见图6--图11、剪刀脚支撑16通过剪刀上端上板面35、剪刀上端下板面36与键帽的配合部转动或滑动连接；键帽的配合部由键帽支撑配合部、键倒扣凸台28、独立设置的键限位凸台30构成；剪刀脚支撑16由钣金冲压成型。
键帽1有与剪刀脚支撑16配合的键帽支撑配合部，键帽1的配合部由键帽支撑配合部、键帽1上的倒扣配合弧28a、独立设置的键限位凸台30构成，支撑板15有与剪刀脚支撑16配合的支板支撑部，支撑板15的配合部由支板支撑部、支撑板15的折弯板上的倒扣配合弧28a构成；当剪刀脚支撑16呈平面状的剪刀下端上板面41与支撑板15呈弧面状的的倒扣配合弧28a配合，剪刀下支撑部为剪刀脚支撑16的剪刀下端下板面38时；剪刀脚支撑16呈平面状的剪刀上端下板面36与键帽1的呈弧面状的倒扣配合弧28a配合，剪刀上支撑部为剪刀上端上板面35；剪刀上端上板面35、剪刀下端下板面38分别与键帽支撑配合部、支板支撑部配合。
键帽支撑配合部可以由键配合凸肩29(本实施例采用)构成；可以由键帽内凹底面27构成；可以由键帽内凹底面27上的形成的凸台的上平面或凸台的上平面上的弧面构成；可以由键帽内凹底面27成形的弧面构成。
剪刀上支承部可以为剪刀脚支撑16上部的圆弧面(图中未表示)；可以为呈平面状的剪刀上端上板面35；可以为呈圆弧面状的剪刀上端上板面35，该圆弧面通过折弯板面形成或冲压板面形成。
支板支撑配合部可以为支承板15的上表面；可以为支承板15上成型的凸台的上表面 平面；可以为支承板15上成型的圆弧面；可以为开关回路12的上表面配合；可以为支承板15上的配合凸肩(与键帽的凸肩结构类似)；还可以是支撑板15上的折弯边上的冲裁面上的向上的截面。
剪刀下支撑部由位于剪刀脚支撑16下端的剪刀冲压下配合弧39构成，剪刀冲压下配合弧39由冲压剪刀脚支撑16位于左右两侧的板面形成的圆弧构成，剪刀冲压下配合弧39位于剪刀脚支撑16的下板面(本实施例采用)；剪刀下支撑部也可由剪刀下端下板面38与剪刀脚支撑16下端部形成的角部构成，也可将该角部冲压倒圆弧。
剪刀下支撑部由剪刀下端下板面38构成，剪刀下端下板面38为剪刀冲压下配合弧39时，支板支撑配合部由支承板15上的呈平面状的支板平面或开关回路12的上表面构成。
剪刀下支撑部由剪刀下端下板面38构成，剪刀下端下板面38为折弯弧面时，支板支撑配合部由位于支承板15上的冲压弧面构成。
剪刀下支撑部由剪刀下端下板面38的角部构成时，支板支撑配合部由支承板15上的呈平面状的支板平面或开关回路12的上表面构成。
实施例2、
参见图12、在键帽1的内凹底面的中部附近成型有上下对称的呈正立T型的两个键T型凸台42，键T型凸台42的两个悬臂端为键倒扣凸台28，在键倒扣凸台28的下表面成型有倒扣配合部，在两个键T型凸台42的内侧均成型有键平面限位凸台43，在两个键平面限位凸台43上均成型有两个下凹弧面构成的键圆弧配合面44，在两个键圆弧配合面44的中部附近的形成键上极限位限面45。
本实施例的两个键圆弧配合面44左右两侧的键平面限位凸台43与两个键圆弧配合面44內侧的键上极限位限面45等高(亦即：安装完键帽后，两个键圆弧配合面44左右两侧的键平面限位凸台43(键限位凸台30)起限制键帽脱出的作用)。
两段键圆弧配合面44可以是同圆心，两段键圆弧配合面44也可以是不同圆心，当两段键圆弧配合面44不同圆心时，两段键圆弧配合面44也可为平面，剪刀脚支撑16与键帽为位移配合，两段键圆弧配合面44起限制剪刀脚支撑16的配合部沿键的内凹底面移动。本实施例的圆弧的两段键圆弧配合面44同心，两段键圆弧配合面44圆滑连接为一个完整的圆。
应确保构成倒扣配合部的倒扣配合弧28a位于键圆弧配合面44的圆心附近，理论上位于圆心为最佳。
键帽支撑配合部由键圆弧配合面44构成；也可以由键帽内凹底面27构成。
参见图13--图17、剪刀脚支撑16呈正立的八型安装，剪刀脚支撑16的下配合部由冲 压下配合弧39、呈平面状的剪刀下端上板面41、构成，在剪刀脚支撑16的左右两侧，设置有弹性的左右钣金弹性悬臂46(钣金弹性臂由钣金弹性悬臂46构成)，左右钣金弹性悬臂46为直接从剪刀脚支撑16的板面向上延伸，左右钣金弹性悬臂46为平面板状(以平直板面为最佳)，剪刀上端下板面36位于左右钣金弹性悬臂46的板面上，钣金弹性臂由左右钣金弹性悬臂46构成。
剪刀脚支撑16的配合部由剪刀上端折弯弧45(剪刀上支承部)、剪刀脚支撑16的剪刀上端下板面36、剪刀上端折弯弧45(剪刀防脱结构)构成；剪刀脚支撑16的剪刀上支承部、剪刀防脱结构均位于剪刀上端折弯弧45上；位于左右钣金弹性悬臂46上端的剪刀上端下板面36与键帽1的上的键倒扣凸台28上的倒扣配合部配合，剪刀上端折弯弧45与键圆弧配合面44配合。
键帽1安装时，键倒扣凸台28使左右钣金弹性悬臂46产生弹性变形，剪刀上端折弯弧45进入键圆弧配合面44形成的配合空间。
其余与实施例1同。
实施例3、参见图18--图20、剪刀脚支撑16呈倒立的八型安装，剪刀脚支撑16的下配合部由剪刀下端支撑弧49(剪刀下支承部)、剪刀脚支撑16的剪刀下端上板面41构成；剪刀脚支撑16的剪刀下支承部、剪刀防脱结构均位于剪刀下端支撑弧49上；位于剪刀脚支撑16下端的板面上的剪刀下端上板面41与支撑板15的上的倒扣配合部的倒扣配合弧28a配合。
支撑板15上有限制剪刀下端支撑弧49水平移动的冲压凸台，在支撑板15上通过冲压成型冲压凸台形成支板下凹面48。剪刀下端支撑弧49与支撑板15上的支板下凹面48转动配合或小位移配合，剪刀下端支撑弧49、剪刀下端上板面41沿垂直于纸面的方向排列。
折弯成型的支板倒扣折弯边50呈正立的T型，在支板倒扣折弯边50对称的悬臂端尾部的下表面设置有倒扣配合部。在两个支板倒扣折弯边50外侧成型有对称的向上凸起的对称的凸台，在凸台上成型有呈圆形的下凹的支板下凹面48，剪刀脚支撑16的剪刀下端支撑弧49与支撑板15上的支板下凹面48转动配合或小位移配合，支板倒扣折弯边50上的倒扣配合部位于呈圆形的支板下凹面48的圆心附近的弧面上，剪刀脚支撑16的剪刀下端上板面41位于呈圆形的支板下凹面48的圆心附近(理论上位于圆心为最佳)。
在支板冲压拉伸凸台51上板面冲压成型有支板下凹面48，剪刀下支承部、剪刀防脱结构均由剪刀下端支撑弧49构成，支板支撑配合部由支板下凹面48构成。
其余与实施例2同。
实施例4、
参见图21-图43本发明的一种配合部为面面配合并有剪刀限位配合面的键开关装置，包括键帽、复位体、开关回路、有配合部的支撑板、有上下配合部的剪刀脚支撑，剪刀脚支撑通过上下配合部分别与键帽、支撑板的配合部转动或滑动连接，剪刀脚支撑通过相互之间力的传递构成同步联动支撑结构，以确保键帽平行于支撑板作升降运动。
支撑板15的配合部由支板支撑部、位于支板悬臂板42上的倒扣配合部及至少一个支板开口限位部构成，支板开口限位部设置在支板悬臂板42与支撑板15之间的配合空间的开口处，支板开口限位部上设置有支板开口限位弧面；剪刀下端上板面41与支撑板15的倒扣配合部配合，剪刀脚支撑16的剪刀限位配合部与支板开口限位部上的支板开口限位弧面配合，支板支撑部与剪刀下支撑部支撑配合；支板开口限位弧面由支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54构成，剪刀限位配合部由剪刀Ⅰ限位面56、剪刀Ⅱ限位面57构成，其中，支板开口Ⅰ限位弧55与剪刀Ⅰ限位面56限位配合，支板开口Ⅱ限位弧54与剪刀Ⅱ限位面57限位配合；支板开口Ⅰ限位弧55的圆心位于相邻的支撑板15的配合部的附近。
支板开口限位部与支板悬臂板42的悬臂端的间距L≥剪刀脚支撑16的板厚B。
支板开口Ⅰ限位弧55的圆心位于剪刀下支撑部与支板支撑部的接触点的附近。
支板支撑部由支撑板15的上板面，或由开关回路的上表面构成，或支板支撑部亦可由支撑板15的上板面冲压成型的凸台的上表面构成，本实施例的支板支撑部釆用支撑板15的上板面。
参见图21、支板开口限位部由支板开口限位弧折弯板52、支板开口安装折弯板53构成，支板开口限位弧折弯板52可沿Y方向折弯，也可沿X方向折弯，支板开口安装折弯板53可沿Y方向折弯，也可沿X方向折弯。
本实施例釆用：两个支板开口限位弧折弯板52沿Y方向90度向左向右折弯，两个支板开口安装折弯板53沿X方向折弯，支板配合X折弯边43沿X方向折弯向内折弯。
参见图22-图27、剪刀脚支撑16的下配合部由呈平面状的剪刀下端上板面41、剪刀限位配合部、剪刀下支撑部构成，其中，呈平面板状的剪刀下端上板面41与支撑板15的倒扣配合部配合，剪刀脚支撑16的剪刀限位配合部与支板开口限位部上的支板开口限位弧面配合，支板支撑部与剪刀下支撑部支撑配合。
本实施例：支板支撑部由支撑板15的上板面构成，剪刀下支撑部由剪刀冲压下配合弧39构成，倒扣配合部由倒扣配合弧28a构成，支板开口限位部由支板开口限位弧面构成。
在剪刀脚支撑16下端的左侧或右侧有剪刀限位贯穿孔，剪刀Ⅰ限位面56、剪刀Ⅱ限 位面57可位于剪刀限位贯穿孔的限位贯穿孔上下端面上，也可位于剪刀限位贯穿孔的限位贯穿孔上下端面延伸面上。限位贯穿孔上下端面由限位贯穿孔上端面、限位贯穿孔下端面构成，剪刀Ⅰ限位面56、剪刀Ⅱ限位面57分别位于限位贯穿孔上端面、限位贯穿孔下端面。
在其中一个支板开口限位部上设置支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54，实现支板开口Ⅰ限位弧55与剪刀Ⅰ限位面56限位配合，支板开口Ⅱ限位弧54与剪刀Ⅱ限位面57限位配合，同时确保支板开口Ⅰ限位弧55的圆心位于剪刀下支撑部与支板支撑部的接触点的附近，该方案使相互支撑的一对剪刀脚支撑16在a角减小时，限制剪刀脚支撑16沿水平方向的位移量，从而确保键帽更平行地上下移动，设置支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54，使面面配合方案更完善。
参见图28-图29、剪刀脚支撑16安装时，左侧的剪刀脚支撑16竖立向下移动进入支板配合X折弯边43上的支板悬臂板42与支板开口限位弧折弯板52之间的空间，右侧的剪刀脚支撑16竖立向下移动进入支板配合X折弯边43上的支板悬臂板42与支板开口安装折弯板53之间的空间，至剪刀脚支撑16的下端与支撑板15接触。
参见图30、左侧的剪刀脚支撑16向内旋转，支板开口限位弧折弯板52外侧的支板开口Ⅱ限位弧54通过剪刀Ⅱ限位面57逐步将左侧的剪刀脚支撑16的下配合部顶入支板悬臂板42与支撑板15上板面之间的空间。
参见图31--图32、右侧的剪刀脚支撑16向内旋转，支板开口安装折弯板53外侧的板面通过剪刀脚支撑16上贯穿孔的端面逐步将右侧的剪刀脚支撑16的下配合部顶入支板悬臂板42与支撑板15上板面之间的空间。剪刀脚支撑16形成相互支撑结构，完成安装。
在支板悬臂板42与支撑板15之间的配合空间的开口处设置支板开口限位部，使键帽安装更方便，特别是手工将键帽安装在剪刀脚支撑16上时，避免了键帽在安装过程中，剪刀脚支撑16从支板悬臂板42与支撑板15之间的配合空间的开口处脱出而影响键帽安装的现象，使键帽安装更方便快捷。
在支板悬臂板42与支撑板15之间的配合空间的开口处设置支板开口限位部，使旋转安装剪刀脚支撑16更方便，剪刀脚支撑16旋转安装时，剪刀脚支撑16旋转，支板开口限位部将剪刀脚支撑16逐步顶入支板悬臂板42与支撑板15之间的配合空间，使呈平面状的剪刀下端上板面41与倒扣配合部形成配合，既方便手工安装，又提高了自动安装剪刀脚支撑16的可靠性。
参见图33--图43、支撑板15的配合部由支板悬臂板42上的倒扣配合弧28a、支板开口限位弧折弯板52、支撑板15的上板面构成。其中支板悬臂板42是从支板配合Y折弯边 40向内延伸形成。在支板开口限位弧折弯板52上设置有支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54；其中，支板开口Ⅰ限位弧55与剪刀Ⅰ限位面56限位配合，支板开口Ⅱ限位弧54与剪刀Ⅱ限位面57限位配合。
支板开口Ⅰ限位弧55的圆心位于剪刀下支撑部与支板支撑部的接触点的附近，剪刀下支撑部与支板支撑部的接触点的座标为X：0mm、Y：0mm，支板开口限位弧面的圆心位于剪刀下支撑部与支板支撑部的接触点为基点的X：±0.7mm、Y：±0.9mm的范围内，但以支板开口限位弧面的圆心位于剪刀下支撑部与支板支撑部的接触点为基点的X：±0.35mm、Y：±0.6mm的范围内为佳。
支板开口限位部与支板悬臂板42的悬臂端的间距L≥剪刀脚支撑16的板厚B；剪刀下支撑部、呈平面板状的剪刀下端上板面41与支板支撑部、支撑板15的倒扣配合部过渡配合，剪刀Ⅰ限位面56与支板开口Ⅰ限位弧55小间隙配合。
部、支撑板15的倒扣配合部保持接触，键帽1上下平行移动，剪刀脚支撑16旋转时，剪刀脚支撑16上某点的运动轨迹形成的弧面与支板开口Ⅰ限位弧55重合。
剪刀下支撑部与支板支撑部保持接触，键帽1上下平行移动，剪刀限位配合部沿支板开口Ⅰ限位弧55接触滑动时，剪刀下端上板面41的板面上某点的运动轨迹与倒扣配合部重合。支板开口Ⅰ限位弧55与支板开口Ⅱ限位弧54同圆心。
剪刀Ⅰ限位面56至剪刀下支撑部与支板支撑部的上表面的接触点的距离为L1，支板开口Ⅰ限位弧55的半径R1＝L1±0.35mm。
参见图33--图35、支板开口Ⅰ限位弧55的圆心与剪刀冲压下配合弧39同圆心，倒扣配合部的圆心与剪刀冲压下配合弧39同圆心，支板开口Ⅰ限位弧55与支板开口Ⅱ限位弧54同圆心时，剪刀脚支撑16与支撑板15转动配合，在限位贯穿孔上端面设置有贯穿孔上端延伸面56a，剪刀Ⅰ限位面56位于贯穿孔上端延伸面56a上。
参见图36--图39、支板开口限位弧面的圆心位于剪刀脚支撑16的上板面的上方时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上板面的上方，配合切点并位于剪刀限位配合部向上的延伸面上。
支板开口限位弧面的圆心位于剪刀脚支撑16的下板面的下方时(图中未表示)，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的下板面的下方，配合切点并位于剪刀限位配合部向下的延伸面上。
参见图40-图41、剪刀下支撑部由剪刀下端下板面38与剪刀脚支撑16下端部形成的角部构成，也可将该角部冲压倒圆弧。支板开口限位弧面的圆心位于剪刀脚支撑16的上板 面的上方时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上板面的上方，配合切点并位于剪刀限位配合部向上的延伸面上。
参见图42-图43、支板开口限位弧面的圆心位于剪刀脚支撑16的上下板面之间时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上下板面之间，配合切点并位于限位贯穿孔上下端面上。
支板开口限位弧面的圆心位于剪刀脚支撑16的上下板面之间的中性面时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上下板面之间的中性面上，配合切点并位于限位贯穿孔上下端面上。
其余与实施例1同。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在发明的保护范围之内。

Claims (26)

  1. 本发明的一种配合部为面面配合并有剪刀限位配合面的键开关装置包括键帽、复位体、开关回路、有配合部的支撑板、有上下配合部的剪刀脚支撑，剪刀脚支撑通过上下配合部分别与键帽、支撑板的配合部转动或滑动连接，剪刀脚支撑通过相互之间力的传递构成同步联动支撑结构，以确保键帽平行于支撑板作升降运动，
    其特征是：所述支撑板15的配合部由支板支撑部、位于支板悬臂板42上的倒扣配合部及至少一个支板开口限位部构成，所述支板开口限位部设置在支板悬臂板42与支撑板15之间的配合空间的开口处，所述支板开口限位部上设置有支板开口限位弧面；
    剪刀下端上板面41与支撑板15的倒扣配合部配合，剪刀脚支撑16的剪刀限位配合部与支板开口限位部上的支板开口限位弧面配合，支板支撑部与剪刀下支撑部支撑配合；
    支板开口限位弧面由支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54构成，剪刀限位配合部由剪刀Ⅰ限位面56、剪刀Ⅱ限位面57构成，其中，支板开口Ⅰ限位弧55与剪刀Ⅰ限位面56限位配合，支板开口Ⅱ限位弧54与剪刀Ⅱ限位面57限位配合；
    所述支板开口Ⅰ限位弧55的圆心位于相邻的支撑板15的配合部的附近。
  2. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述支板开口限位部与支板悬臂板42的悬臂端的间距L≥剪刀脚支撑16的板厚B。
  3. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述支板开口Ⅰ限位弧55的圆心位于剪刀下支撑部与支板支撑部的接触点的附近。
  4. 如权利要求1或2或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述支撑板15上设置有支板开口限位弧折弯板52、支板开口安装折弯板53、支板配合X折弯边43；支板开口限位弧折弯板52沿Y方向90度折弯，支板配合X折弯边43沿X方向折弯向内折弯，支板开口安装折弯板53沿X方向折弯或沿Y方向90度折弯，支板悬臂板42与支板配合X折弯边43成夹角并沿X方向向内延伸，倒扣配合部位于支板悬臂板42的悬臂端侧的下表面；支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54位于支板开口限位弧折弯板52上。
  5. 如权利要求1或2或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述支撑板15上设置有支板开口限位弧折弯板52、支板开口安装折弯板53、支板配合Y折弯边40；支板开口限位弧折弯板52沿Y方向90度折弯，支板配合Y折弯边40沿Y方向90度折弯，支板开口安装折弯板53沿X方向折弯或沿Y方向90度折弯，支板悬臂板42与支板配合Y折弯边40成夹角并沿X方向向内延伸，倒扣配合部位于支板悬臂板42的悬臂端侧的下表面；支板开口Ⅰ限位弧55、支板开口Ⅱ限位弧54位于支板开口限位弧 折弯板52上。
  6. 如权利要求1或2或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀脚支撑16成型有有弹性的钣金弹性臂，所述剪刀脚支撑16有冲压成型的剪刀防脱结构；在键帽1上设置有键限位凸台30，所述相互支撑的剪刀脚支撑16通过剪刀防脱结构与键帽1的键限位凸台30限位配合，阻止键脱出或将键帽1限制在上极限位。
  7. 如权利要求6所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀脚支撑16成型有有弹性的钣金弹性臂，所述剪刀脚支撑16有冲压成型的剪刀防脱结构；在键帽1上设置有键端部限位面31，所述相互支撑的剪刀脚支撑16通过剪刀防脱结构与键帽1的键端部限位面31限位配合，阻止键脱出或将键帽1限制在上极限位。
  8. 如权利要求1或2或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀脚支撑16的上配合部由剪刀上支承部、剪刀脚支撑16的剪刀上端下板面36、剪刀防脱结构构成，其中，剪刀上支承部与键帽1的键帽支撑配合部配合，位于所述剪刀脚支撑16上端的剪刀上端下板面36与键帽1的上的键倒扣凸台28上的倒扣配合部配合。
  9. 如权利要求1或2或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀下支撑部由位于剪刀脚支撑16下端的剪刀冲压下配合弧39构成，剪刀冲压下配合弧39由冲压剪刀脚支撑16位于左右两侧的板面形成的圆弧构成，剪刀冲压下配合弧39位于剪刀脚支撑16的下板面。
  10. 如权利要求1或2或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀脚支撑16通过剪刀上端上板面35与剪刀上端下板面36间的厚度尺寸与键帽的配合部转动或滑动连接。
  11. 如权利要求10所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述支撑板15的倒扣配合部与支板支撑部之间的距离尺寸与所述剪刀脚支撑16的剪刀下端上板面41至剪刀下端下板面38之间的距离尺寸采用过渡配合。
  12. 如权利要求1或2或3或6所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀脚支撑16的上配合部由剪刀上支承部、剪刀脚支撑16的剪刀上端下板面36、独立设置的剪刀防脱结构构成，剪刀上端下板面36呈平面状，所述倒扣配合部由倒扣配合弧28a构成，所述剪刀上支承部由剪刀脚支撑16的上板面构成。
  13. 如权利要求1或2或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：支撑板15的配合部由支板支撑部、支撑板15的支板悬臂板42上的倒扣配合部及两个支板开口限位部构成，其中一个支板开口限位部设置有支板开口Ⅰ限位弧55及支板开口 Ⅱ限位弧54，剪刀限位配合部设置在剪刀脚支撑16下端的左侧或右侧。
  14. 如权利要求1或3所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀下支撑部与支板支撑部的接触点的座标为X：0mm、Y：0mm，所述支板开口限位弧面的圆心位于剪刀下支撑部与支板支撑部的接触点为基点的X：±0.65mm、Y：±0.85mm的范围内。
  15. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：支板开口Ⅰ限位弧55的圆心与剪刀冲压下配合弧39同圆心，倒扣配合部的圆心与剪刀冲压下配合弧39同圆心，支板开口Ⅰ限位弧55与支板开口Ⅱ限位弧54同圆心时，剪刀脚支撑16与支撑板15转动配合。
  16. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：支板开口Ⅰ限位弧55与支板开口Ⅱ限位弧54同圆心。
  17. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀Ⅰ限位面56至剪刀下支撑部与支板支撑部的上表面的接触点的距离为L1，支板开口Ⅰ限位弧55的半径R1＝L1±0.35mm。
  18. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：在剪刀脚支撑16下端的左侧或右侧有剪刀限位贯穿孔，剪刀Ⅰ限位面56、剪刀Ⅱ限位面57位于剪刀限位贯穿孔的限位贯穿孔上下端面上。
  19. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：在剪刀脚支撑16下端的左侧或右侧有剪刀限位贯穿孔，剪刀Ⅰ限位面56、剪刀Ⅱ限位面57位于剪刀限位贯穿孔的限位贯穿孔上下端面的延伸面上。
  20. 如权利要求14所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：支板开口限位弧面的圆心位于剪刀脚支撑16的上下板面之间时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上下板面之间，配合切点并位于限位贯穿孔上下端面上。
  21. 如权利要求15所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：支板开口限位弧面的圆心位于剪刀脚支撑16的上下板面之间的中性面时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的上下板面之间的中性面上，配合切点并位于限位贯穿孔上下端面上。
  22. 如权利要求14所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：支板开口限位弧面的圆心位于剪刀脚支撑16的上板面的上方时，支板开口限位弧面与剪刀 限位配合部的配合切点位于剪刀脚支撑16的上板面的上方，配合切点并位于剪刀限位配合部向上的延伸面上。
  23. 如权利要求14所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：支板开口限位弧面的圆心位于剪刀脚支撑16的下板面的下方时，支板开口限位弧面与剪刀限位配合部的配合切点位于剪刀脚支撑16的下板面的下方，配合切点并位于剪刀限位配合部向下的延伸面上。
  24. 如权利要求1所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：剪刀下支撑部、呈平面板状的剪刀下端上板面41与支板支撑部、支撑板15的倒扣配合部过渡配合，剪刀Ⅰ限位面56与支板开口Ⅰ限位弧55小间隙配合。
  25. 如权利要求1或2或10所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：剪刀下支撑部、呈平面板状的剪刀下端上板面41分别与支板支撑部、支撑板15的倒扣配合部保持接触，键帽1上下平行移动，剪刀脚支撑16旋转时，剪刀脚支撑16上某点的运动轨迹形成的弧面与支板开口Ⅰ限位弧55重合。
  26. 如权利要求1或2或10所述一种配合部为面面配合并有剪刀限位配合面的键开关装置，其特征是：所述剪刀下支撑部与支板支撑部保持接触，键帽1上下平行移动，剪刀限位配合部沿支板开口Ⅰ限位弧55接触滑动时，剪刀下端上板面41的板面上某点的运动轨迹与倒扣配合部重合。
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