WO2010038517A1 - キースイッチ構造 - Google Patents
キースイッチ構造 Download PDFInfo
- Publication number
- WO2010038517A1 WO2010038517A1 PCT/JP2009/060960 JP2009060960W WO2010038517A1 WO 2010038517 A1 WO2010038517 A1 WO 2010038517A1 JP 2009060960 W JP2009060960 W JP 2009060960W WO 2010038517 A1 WO2010038517 A1 WO 2010038517A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- back plate
- led
- key switch
- hole
- Prior art date
Links
Images
Classifications
-
- 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
- H01H13/83—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 characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
-
- 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
- H01H13/02—Details
-
- 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
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/056—Diffuser; Uneven surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/06—Reflector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/062—Light conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/12—Push-buttons
- H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
- H01H3/125—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor using a scissor mechanism as stabiliser
Definitions
- the present invention relates to a key switch structure of a keyboard used as an input device in information processing equipment, measuring equipment, medical equipment, and the like, and more particularly to a key switch structure having an illumination function.
- the key switch structure disclosed in this document has a configuration in which an elastic member and a link mechanism are disposed under a key cap, and a membrane circuit board, a light guide plate, and a base plate are disposed under the elastic member and the link mechanism.
- a structure in which an LED (light emitting diode) as a light emitting element is provided on a membrane circuit board a structure in which a dedicated circuit board is provided is also disclosed. In the case where a dedicated circuit board is provided, the circuit board is shown to be disposed under the base plate.
- the base plate and the light guide plate are separate members. Therefore, the height of the entire key switch is increased, which has been an obstacle to reducing the thickness of the key switch. Also, if the height of the key switch is high, it is difficult to mount on a PC (personal computer) or to replace a key switch without an illumination function with a key switch with an illumination function. Furthermore, since the number of parts is large, the cost of the apparatus becomes high. In addition, in the manufacturing process, a step of bonding the light guide plate and the base plate is required, which also increases the cost.
- the present invention provides a key switch structure in which the height of the key switch is reduced, the number of parts is reduced, and the cost is reduced.
- the key switch structure includes a key top, a link mechanism that supports the key top to be movable up and down, a membrane sheet having a contact portion, and a lower part of the membrane sheet, the link mechanism And a sheet member provided with a light emitting element, and the light emitting element is disposed adjacent to the back plate.
- the back plate since the back plate has a light guide function, the height of the key switch can be reduced, the number of parts can be reduced, and the cost can be reduced. .
- FIG. 1 is an exploded perspective view showing a key switch structure according to the first embodiment of the present invention
- FIG. 2 is a cross-sectional view showing the key switch structure according to the first embodiment.
- the key switch 10 is rotated with respect to a key top 11, a first link member 12 slidably provided with respect to the key top 11, and the key top 11.
- the second link member 13 and the key top 11 that can be provided are bent when the key top 11 is pressed, and the rubber dome (elastic member) 14 that returns the key top 11 to its original position when the pressing force is removed, the first A holder 15 that holds the second link members 12 and 13, a membrane sheet 16 having a contact portion immediately below the rubber dome 14, a back plate 17 that supports the holder 15 and has a light guiding function, and a light emitting diode (LED).
- An LED sheet 18 is provided.
- a character or symbol 11c is formed on the surface (upper surface) of the key top 11 (mainly, the entire key top is painted and the character portion is formed by a laser or the like).
- a sliding support portion 11a that supports the sliding pin 12a of the first link member 12 so as to be slidable in the horizontal direction and a rotating pin 13a of the second link member 13 are rotatably supported.
- a rotation support portion 11b is provided.
- the first link member 12 is formed in a substantially frame shape, and in addition to the sliding pin 12a, a fulcrum hole 13c of the second link member 13 (shown only on one side in FIG. 1, but the fulcrum hole 13c is provided on both sides.
- the second link member 13 includes a fulcrum hole 13c into which the pin 12c of the first link member 12 is inserted in addition to the rotation pin 13a rotatably held by the rotation support portion 11b of the key top 11, and a slide of the holder 15. It has a pin 13b that slides while being guided by the dynamic support portion 15c.
- the rubber dome 14 is disposed in the lower part of the key top 11 and is formed in a substantially cup shape using rubber or the like as a raw material. It is formed to project toward.
- the link mechanism includes a first link member 12 and a second link member 13.
- the holder 15 is divided into one key unit and formed in a frame shape.
- the holder 15 includes a fulcrum portion 15b for rotatably supporting the pin 12b of the first link member 12, and a pin 13b of the second link member 13. And a plurality of welding pins 15a that are fitted into holes 17a formed in the back plate 17 having a light guide function.
- a flange portion 15d is formed on the upper portion (base portion) of the welding pin 15a.
- the diameter of the flange portion 15 d is set slightly smaller than the diameter of the hole 16 a of the membrane sheet 16. Further, the thickness of the flange portion 15 d is slightly thicker than the thickness of the membrane sheet 16.
- FIG. 3 is an enlarged view showing a welding state of the welding pin.
- the first link member 12, the second link member 13 and the holder 15 are made of a transparent or translucent material.
- the membrane sheet 16 has a contact portion 16b that is pressed by the contact pressing portion 14a of the rubber dome 14, and a hole 16a into which the flange portion 15d of the holder 15 enters.
- the membrane sheet 16 includes a flexible upper sheet and a lower sheet, and a spacer sheet sandwiched between the upper sheet and the lower sheet.
- the spacer sheet corresponds to a plurality of keys.
- a plurality of through holes are provided.
- the through hole forms a space between the upper sheet and the lower sheet, and a fixed contact is provided on the lower sheet on the back plate 17 side and the upper sheet on the rubber dome 14 side so as to face each other in this space.
- Each has a movable contact.
- a contact portion 16b is constituted by the fixed contact and the movable contact.
- the back plate 17 having a light guiding function is formed of a transparent or highly transparent resin or the like so that light passes through the inside while being refracted.
- holes 17 a into which the welding pins 15 a of the holder 15 are inserted are provided at a plurality of positions corresponding to the holes 16 a of the membrane sheet 16.
- a through hole 17c is provided at a position corresponding to the position where the LED 18b is disposed.
- the hole 17 a is set to have a diameter smaller than that of the hole 16 a of the membrane sheet 16.
- a shielding (reflective) seal 19 is attached to the upper part of the through hole 17c so that light emitted from the LED 18b does not leak.
- the shielding seal 19 has a higher luminance than the LED 18b, and is provided at a position where the light from the LED 18b can be transmitted from the back plate 17 to the membrane sheet 16 side.
- the back plate 17 is formed with a reflecting portion 17b.
- the reflection portion 17b is provided at a position corresponding to the character or symbol 11c of the key top 11. Therefore, a plurality of reflecting portions 17b may be provided in one key switch.
- the reflection portion 17b is formed by printing or forming irregularities in a dot shape.
- a welding hole 18 a is formed at a position corresponding to the welding pin 15 a of the holder 15, and an LED 18 b is arranged at a position corresponding to the through hole 17 c of the back plate 17.
- the welding hole 18 a is formed sufficiently larger than the hole 17 a of the back plate 17.
- the LED 18b can be disposed at any position on the LED sheet 18.
- the upper surface of the LED sheet 18 and the lower surface of the back plate 17 are mounted with an adhesive or the like.
- FIG. 4 is a detailed enlarged view showing the LED arrangement portion in the first embodiment, and shows the membrane sheet 16, the back plate 17, the LED sheet 18, and the LED 18b.
- the LED sheet 18 includes a lower surface LED sheet portion 18c and an upper surface reflection sheet portion 18d.
- the upper side of the lower LED sheet portion 18c and the lower side of the upper reflective sheet portion 18d are bonded.
- a hole 18e corresponding to the LED 18b is provided in the upper reflective sheet portion 18d.
- the LED 18b is disposed on the lower LED sheet portion 18c, and a pattern is printed in a sheet shape.
- the LED 18b is bonded.
- the lower surface LED sheet portion 18c and the upper surface reflection sheet portion 18d have a waterproof function by being bonded with waterproof paste or the like.
- the upper surface reflection sheet portion 18d can be provided with a reflection function by printing a reflective material on the upper or lower surface of a transparent PET (polyethylene terephthalate) sheet.
- the LED 18b can be mounted without forming
- FIG. 3 shows a state in which the LED sheet 18, the back plate 17 and the membrane sheet 16 are overlaid and the holder 15 is disposed thereon.
- the welding pin 15a of the holder 15 protrudes downward through the hole 17a of the back plate 17 and the welding hole 18a of the LED sheet 18, as indicated by a solid line.
- the diameter of the flange portion 15 d is larger than the diameter of the hole 17 a of the back plate 17, the flange portion 15 d is in a state of riding on the upper surface of the back plate 17.
- the membrane sheet 16 may be thermally expanded depending on the temperature, and can cope with the expansion by forming a gap.
- the tip portion 15aa of the welding pin 15a when the tip portion 15aa of the welding pin 15a is heated, the tip portion 15aa is deformed, becomes flat as shown by a two-dot chain line, and is fixed to the lower outer peripheral portion of the hole 17a of the back plate 17. As a result, the holder 15 is fixed to the back plate 17.
- the front end portion 15aa of the welding pin 15a that has been welded does not protrude downward from the LED sheet 18.
- the illumination operation will be described.
- the LED 18b when the LED 18b is turned on by a power source (not shown), the light emitted from the LED 18b passes through the back plate 17 having a light guiding function.
- a shielding seal 19 is provided on the upper portion of the LED 18b. For this reason, the light emitted from the LED 18b does not escape upward but is reflected by the shielding seal 19 and passes through the back plate 17 as indicated by the arrow.
- Light is reflected by the reflecting portion 17 b provided at a position corresponding to the character or symbol 11 c of the key top 11, and the reflected light irradiates in the direction of the key top 11 through the membrane sheet 16.
- the membrane sheet 16 is formed of a light transmissive material, and the light passes through the membrane sheet 16, further passes through the holder 15 and the rubber dome 14, and reaches the back surface of the key top 11.
- the letters or symbols 11c on the key top 11 are illuminated from the back surface, so that they appear to be seen from the top surface.
- the configuration is composed of only the back plate 17 having the light guide function. As a result, the overall height of the key switch is lowered.
- the base portion consisting of the membrane sheet 16, the back plate 17 and the LED sheet 18
- the base portion can be mounted on a PC or a key switch having no illumination function can be replaced with a key switch having an illumination function. It becomes easy.
- the number of parts is reduced, cost reduction can be expected. Furthermore, since the number of parts is reduced, cost reduction can be expected. Furthermore, since the light guiding function and the back plate function are realized by a single member, it is possible to manufacture in the same process as a conventional keyboard having no illumination function. Further, by providing the LED sheet 18, the overall height of the key switch can be further reduced. Furthermore, the provision of the LED sheet 18 makes it possible to provide a waterproof function.
- FIG. 5 is an exploded perspective view showing the key switch structure of the second embodiment
- FIG. 6 is a cross-sectional view showing the key switch structure of the second embodiment.
- the key switch 20 of the second embodiment is rotated with respect to the key top 21, the first link member 22 slidably provided with respect to the key top 21, and the key top 21.
- the second link member 23 and the key top 21 that can be provided are bent when the key top 21 is pressed, and the rubber dome 24 that returns the key top 21 to its original position when the pressing force is eliminated.
- the first and second links A holder 25 for holding the members 22 and 23, an LED sheet 28 on which the LEDs are disposed, a membrane sheet 26 having a contact portion immediately below the rubber dome 24, a back plate 27, and a reflection sheet 29 are provided.
- the key top 21, the first link member 22, the second link member 23, the rubber dome 24, the holder 25, and the membrane sheet 26 are the same as those in the first embodiment. Therefore, the detailed description about these is abbreviate
- a hole 28a is formed at a position corresponding to the welding pin 25a of the holder 25.
- the hole 28a is set to have a diameter larger than the diameter of the flange portion 25d of the welding pin 25a.
- An LED 28b is disposed at a position corresponding to the through hole 27c of the back plate 27.
- the LED 28 b can be disposed at any position on the LED sheet 28.
- FIGS. 7 and 8 are detailed enlarged views showing the LED arrangement portion of the second embodiment.
- the LED sheet 28 is composed of an upper surface LED sheet portion 28c and a lower surface reflection sheet portion 28d.
- the lower side of the upper surface LED sheet portion 28c and the upper side of the lower surface reflection sheet portion 28d are bonded.
- a hole 28e corresponding to the LED 28b is provided in the lower reflective sheet portion 28d.
- the LED 28b is disposed downward on the upper LED sheet portion 28c, and a pattern is printed on the sheet.
- the LED 28b is bonded.
- the upper LED sheet portion 28c and the lower reflective sheet portion 28d have a waterproof function by being bonded with waterproof glue or the like.
- the lower reflective sheet portion 28d can be provided with a reflective function by printing a reflective material on the upper or lower surface of a transparent PET (polyethylene terephthalate) sheet.
- the lower reflective sheet portion 28d does not necessarily have a reflective function.
- the membrane sheet 26 is provided with a reflection function.
- the LED sheet 28 has a configuration of only the upper surface LED sheet portion 28c as shown in FIG. That is, the upper LED sheet portion 28c becomes the LED sheet 28 itself.
- the LED sheet 28 is disposed on the membrane sheet 26.
- the upper surface LED sheet portion 28c and the lower surface reflection sheet portion 28d have a waterproof function by being bonded with waterproof glue or the like. When the waterproof function is not required, only the upper surface LED sheet portion 28c is mounted.
- the membrane sheet 26 has a contact portion 26 b that is pressed by the contact pressing portion 24 a of the rubber dome 24. Further, the membrane sheet 26 is formed with a hole 26a for receiving the flange portion 25d (shown in FIG. 6) of the holder 25 and a hole 26c for receiving the LED 28b. Similar to the first embodiment, the back plate 27 having a light guiding function is formed of a transparent or highly transmissive resin or the like, so that light passes through the inside while being refracted. The back plate 27 is provided with a plurality of positions corresponding to the holes 26a of the membrane sheet 26 so that the holes 27a into which the welding pins 25a of the holder 25 are inserted, and positions corresponding to the positions where the LEDs 28b are disposed.
- a through-hole 27c is provided in the front.
- the hole 27 a is set to have a diameter smaller than that of the hole 26 a of the membrane sheet 26.
- a shielding seal for closing the through hole 27c is not provided below the through hole 27c.
- the back plate 27 has a reflecting portion 27b.
- the reflection sheet 29 is provided with a hole 29 a at a position corresponding to the welding pin 25 a of the holder 25.
- the reflection sheet 29 is disposed on the lower side of the back plate 27 with an adhesive or the like. No hole is formed at a position corresponding to the through hole 27 c of the reflection sheet 29. The light emitted from the LED 28b is reflected by the reflection sheet 29 toward the back plate 27 side.
- FIG. 6 a reflection sheet 29, a back plate 27, a membrane sheet 26 and an LED sheet 28 are overlaid, and a holder 25 is disposed thereon.
- the welding pin 25a of the holder 25 protrudes downward through the hole 27a of the back plate 27 and the hole 29a of the reflection sheet 29.
- the flange portion 25d is in a state of riding on the upper surface of the back plate 27.
- the diameter of the flange portion 25d is smaller than the diameter of the hole 26a of the membrane sheet 26 and the hole 28a of the LED sheet 28. Accordingly, a slight gap is formed between the flange portion 25d and the membrane sheet 26 and the LED sheet 28.
- the tip of the welding pin 25a when the tip of the welding pin 25a is heated, the tip is deformed and fixed to the lower outer peripheral portion of the hole 27a of the back plate 27. As a result, the holder 25 is fixed to the back plate 27. The tip of the welded pin 25 a that has been welded does not protrude below the reflection sheet 29.
- the illumination operation will be described.
- the light emitted from the LED 28b passes through the back plate 27 having a light guiding function.
- a reflection sheet 29 is provided below the LED 28b. Therefore, the light emitted from the LED 28 b does not pass downward, is reflected by the reflection sheet 29, and passes through the back plate 27.
- the membrane sheet 26 or the LED sheet 28 is provided with a reflection function above the back plate 27. Accordingly, the light emitted from the LED 28b passes through the back plate 27 without passing upward.
- the light is reflected by the reflecting portion 27 b provided at a position corresponding to the character or symbol of the key top 21.
- the reflected light is irradiated in the direction of the key top 21 through the membrane sheet 26.
- the light passes through the membrane sheet 26, further passes through the holder 25 and the rubber dome 24, and reaches the back surface of the key top 21.
- the characters or symbols of the key top 21 are illuminated from the back surface, and thus appear to be seen from the top surface.
- the conventional structure is composed of the light guide plate and the back plate, whereas the back plate 17 having the light guide function is used.
- the back plate 17 having the light guide function is used.
- the light guiding function and the back plate function are realized with one member. As a result, it is possible to manufacture in the same process as a conventional keyboard having no illumination function. Further, in the second embodiment, since the LED 28b is provided downward, the influence of the luminance of the LED 28b on the upper surface of the keyboard can be reduced. Further, it is not necessary to apply a shielding seal for closing the through hole 27c of the back plate 27 where the LED 28b is disposed.
- FIG. 9 is an exploded perspective view showing the key switch structure of the third embodiment
- FIG. 10 is a sectional view showing the key switch structure of the third embodiment.
- the key switch 40 of the third embodiment is rotated with respect to the key top 41, the first link member 42 slidably provided with respect to the key top 41, and the key top 41.
- the second link member 43 and the key top 41 which can be provided are bent when the key top 41 is pressed, and the rubber dome 44 which returns the key top 41 to the original position when the pressing force is removed, the first and second links.
- a holder 45 that holds the members 42 and 43, a membrane sheet 46 having a contact portion immediately below the rubber dome 44, a back plate 47, and an LED sheet 48 are provided.
- the key top 41, the first link member 42, the second link member 43, the rubber dome 44, the holder 45, and the membrane sheet 46 are the same as those in the first embodiment, and detailed descriptions thereof are provided. Description is omitted. Note that a flange portion is not formed on the welding pin 45 a of the holder 45.
- the back plate 47 having a light guiding function is provided with a plurality of positions corresponding to the holes 46a of the membrane sheet 46 so that the holes 47a into which the welding pins 45a of the holder 45 are inserted pass, and the LED 48b is disposed.
- a through hole 47c is provided at a position corresponding to.
- the back plate 47 is formed with a projecting portion 47d.
- the hole 47a is formed in the projecting portion 47d.
- the hole 47 a is set to have a smaller diameter than the hole 46 a of the membrane sheet 46.
- a shielding (reflective) seal 49 is attached to the upper part of the through hole 47c so that light emitted from the LED 48b does not leak.
- the shielding seal 49 has a higher luminance than the LED 48b, and is affixed at a position where the light of the LED 48b can be transmitted from the back plate 47 to the membrane sheet 46 side.
- the back plate 47 is formed with a reflecting portion 47b.
- the reflection part 47b is provided at a position corresponding to the character or symbol of the key top 41, and is formed by printing in a dot shape.
- the height of the projecting portion 47 d of the back plate 47 is slightly higher than the thickness of the membrane sheet 46.
- a space is formed below the projecting portion 47d, and the tip of the welding pin 45a of the holder 45 is thermally welded in this space. Therefore, in the state after welding, as shown in FIG. 10, the bottom surface is kept horizontal even if the hole of the LED sheet 48 is not formed. Therefore, the LED sheet 48 is not provided with a hole as in the first embodiment.
- the assembly operation and the illumination operation in the third embodiment are the same as those in the first embodiment.
- the projecting portion 47d is provided on the back plate 47 having a light guiding function.
- the tip end of the welding pin 45a to be welded enters the inside of the launch portion 47d, so that the welding portion does not protrude below the back plate 47. Since it is not necessary to provide a hole in the LED sheet 48, waterproofness can be secured.
- FIG. 11 is an exploded perspective view showing the key switch structure of the fourth embodiment
- FIG. 12 is a cross-sectional view showing the key switch structure of the fourth embodiment. 11 and 12, the key switch 50 according to the fourth embodiment is rotated with respect to the key top 51, the first link member 52 slidably provided with respect to the key top 51, and the key top 51.
- the second link member 53 and the key top 51 that are provided are bent when the key top 51 is pressed, and the rubber dome 54 that returns the key top 51 to its original position when the pressing force is removed, the first and second links
- a holder 55 that holds the members 52 and 53, an LED sheet 58, a membrane sheet 56 having a contact portion immediately below the rubber dome 54, a back plate 57, and a reflective sheet 59 are provided.
- the key top 51, the first link member 52, the second link member 53, the rubber dome 54, the holder 55, the LED sheet 58 and the membrane sheet 56 are the same as those in the second embodiment, and these The detailed description about is omitted.
- the flange part is not formed in the welding pin 55a of the holder 55.
- the back plate 57 having a light guiding function is provided with a plurality of positions corresponding to the holes 56a of the membrane sheet 56 so that the holes 57a into which the welding pins 55a of the holder 55 are inserted penetrate, and the positions where the LEDs 58b are disposed.
- a through hole 57c is provided at a position corresponding to.
- the back plate 57 is formed with a launch portion 57d, and the hole 57a is formed in the launch portion 57d.
- the hole 57 a is set to have a smaller diameter than the hole 56 a of the membrane sheet 56.
- a shielding seal is not attached to the lower part of the through hole 57c.
- the back plate 57 is formed with a reflection portion 57b printed in a dot shape.
- the reflection sheet 59 provided below the back plate 57 is not provided with a hole as in the second embodiment.
- the height of the launch portion 57d of the back plate 57 is slightly higher than the thickness of the membrane sheet 56.
- a space is formed below the projecting portion 57d, and the tip of the welding pin 55a of the holder 55 is thermally welded in this space. Therefore, in the state after welding, as shown in FIG. 12, the bottom surface is kept horizontal even if the hole of the LED sheet 58 is not formed. Therefore, the LED sheet 58 is not provided with a hole as in the second embodiment.
- the assembly operation and the illumination operation in the fourth embodiment are the same as those in the second embodiment.
- the back plate 57 is provided with the projecting portion 57d.
- the tip of the welding pin 55a to be welded enters the inside of the launching portion 57d, so that the welding portion does not protrude below the back plate 57. Since it is not necessary to provide a hole in the reflection sheet 59, waterproofness can be secured.
Landscapes
- Push-Button Switches (AREA)
Abstract
Description
遮蔽シール49は、LED48bより輝度が強く、LED48bの光がバックプレート47からメンブレンシート46側へ透ける位置に貼付される。またバックプレート47には、反射部47bが形成されている。反射部47bはキートップ41の文字または記号に対応した位置に設けられ、ドット形状に印刷することにより形成される。
Claims (6)
- キートップと、
前記キートップを昇降可能に支持するリンク機構と、
接点部を有するメンブレンシートと、
前記メンブレンシートの下部に配設され、前記リンク機構を支持するとともに導光機能を有するバックプレートと、
発光素子を配設したシート部材と、を備え、
前記発光素子は前記バックプレートに隣接して配置されるキースイッチ構造。 - 前記シート部材は前記バックプレートの下部に配設される請求項1記載のキースイッチ構造。
- 前記シート部材は前記バックプレートの上部に配設される請求項1記載のキースイッチ構造。
- 前記メンブレンシート上に配置され、前記リンク機構を支持するホルダー部材を有し、
前記ホルダー部材は前記バックプレート方向に突出した突起部を有し、
前記バックプレートは前記突起部が嵌入する貫通孔を有し、
前記ホルダー部材は前記突起部が前記貫通孔に挿入され、突起部の先端部が溶着されることにより固定される請求項1記載のキースイッチ構造。 - 前記突起部の基部に、前記貫通孔の径より大きい径を有するフランジ部が形成され、
前記フランジ部の厚さは前記メンブレンシートより厚い請求項4記載のキースイッチ構造。 - 前記バックプレートの前記メンブレンシート側に突出する打ち出し部を設け、前記貫通孔は前記打ち出し部に設けられる請求項4記載のキースイッチ構造。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020117003058A KR101340795B1 (ko) | 2008-10-02 | 2009-06-16 | 키 스위치 구조 |
US13/063,750 US8835785B2 (en) | 2008-10-02 | 2009-06-16 | Key switch structure |
CN200980130436.XA CN102113076B (zh) | 2008-10-02 | 2009-06-16 | 键开关结构 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-257599 | 2008-10-02 | ||
JP2008257599A JP5375012B2 (ja) | 2008-10-02 | 2008-10-02 | キースイッチ構造 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010038517A1 true WO2010038517A1 (ja) | 2010-04-08 |
Family
ID=42073293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/060960 WO2010038517A1 (ja) | 2008-10-02 | 2009-06-16 | キースイッチ構造 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8835785B2 (ja) |
JP (1) | JP5375012B2 (ja) |
KR (1) | KR101340795B1 (ja) |
CN (1) | CN102113076B (ja) |
TW (1) | TW201015597A (ja) |
WO (1) | WO2010038517A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012134116A (ja) * | 2010-12-20 | 2012-07-12 | Primax Electronics Ltd | 発光キーボード |
KR200464827Y1 (ko) | 2010-06-23 | 2013-01-22 | 지피 테크놀로지 코포레이션 | 구분가능한 키 위치들이 제공되는 조명 키보드 |
KR200466306Y1 (ko) * | 2010-06-24 | 2013-04-08 | 지피 테크놀로지 코포레이션 | 국부 발광 키보드 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012022993A (ja) * | 2010-07-16 | 2012-02-02 | Oki Electric Ind Co Ltd | キースイッチ構造 |
JP5760670B2 (ja) * | 2011-05-13 | 2015-08-12 | 沖電気工業株式会社 | キースイッチ構造 |
TW201316368A (zh) * | 2011-10-14 | 2013-04-16 | Primax Electronics Ltd | 發光鍵盤 |
JP6336708B2 (ja) * | 2012-03-13 | 2018-06-06 | ルミテックス, インコーポレイテッドLumitex,Inc. | 光導体およびキーボードバックライト |
JP5930393B2 (ja) * | 2012-06-25 | 2016-06-08 | シチズン電子株式会社 | キーボードユニット |
TWM448728U (zh) * | 2012-10-26 | 2013-03-11 | Darfon Electronics Corp | 背光模組及鍵盤 |
JP3213042U (ja) * | 2014-09-30 | 2017-10-19 | アップル インコーポレイテッド | キーボードアセンブリ用のキー及びスイッチハウジング |
US11360258B1 (en) * | 2016-06-01 | 2022-06-14 | Apple Inc. | Illuminated input devices |
TWI716851B (zh) * | 2019-04-11 | 2021-01-21 | 群光電子股份有限公司 | 鍵盤 |
CN111831125A (zh) * | 2019-04-22 | 2020-10-27 | 群光电子(苏州)有限公司 | 键盘 |
CN111508739A (zh) * | 2020-03-17 | 2020-08-07 | 江苏传艺科技股份有限公司 | 一种可切换显示字符的按键 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001229764A (ja) * | 2000-02-15 | 2001-08-24 | Oki Joho Systems:Kk | キースイッチ構造 |
JP2003308752A (ja) * | 2002-04-17 | 2003-10-31 | Nec Access Technica Ltd | 携帯端末の操作部照明構造及び携帯端末 |
JP2007280810A (ja) * | 2006-04-07 | 2007-10-25 | Oki Electric Ind Co Ltd | キースイッチ構造 |
JP2008060058A (ja) * | 2006-08-03 | 2008-03-13 | Citizen Electronics Co Ltd | 発光シートモジュール |
JP2008235065A (ja) * | 2007-03-22 | 2008-10-02 | Oki Electric Ind Co Ltd | キースイッチ構造 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63112715U (ja) * | 1987-01-16 | 1988-07-20 | ||
JP3197919B2 (ja) * | 1991-10-07 | 2001-08-13 | 株式会社光電製作所 | 押圧スイッチ装置 |
JP2002216576A (ja) * | 2001-01-18 | 2002-08-02 | Oki Electric Ind Co Ltd | メンブレンキーボード |
JP2002260478A (ja) | 2001-03-01 | 2002-09-13 | Internatl Business Mach Corp <Ibm> | キーボード |
JP2002298689A (ja) * | 2001-03-30 | 2002-10-11 | Brother Ind Ltd | キースイッチ装置、キースイッチ装置を備えたキーボード及びキーボードを備えた電子機器 |
TW509955B (en) * | 2001-11-30 | 2002-11-11 | Darfon Electronics Corp | Light emitting keyboard |
TWI220213B (en) * | 2003-03-04 | 2004-08-11 | Darfon Electronics Corp | Keyboard structure |
CN1276332C (zh) * | 2003-03-20 | 2006-09-20 | 达方电子股份有限公司 | 键盘结构 |
KR20050031670A (ko) * | 2003-09-30 | 2005-04-06 | 삼성전기주식회사 | 키 스위칭 장치 및 그 제조방법 |
US7154059B2 (en) * | 2004-07-19 | 2006-12-26 | Zippy Technoloy Corp. | Unevenly illuminated keyboard |
-
2008
- 2008-10-02 JP JP2008257599A patent/JP5375012B2/ja active Active
-
2009
- 2009-06-16 WO PCT/JP2009/060960 patent/WO2010038517A1/ja active Application Filing
- 2009-06-16 KR KR1020117003058A patent/KR101340795B1/ko active IP Right Grant
- 2009-06-16 US US13/063,750 patent/US8835785B2/en active Active
- 2009-06-16 CN CN200980130436.XA patent/CN102113076B/zh active Active
- 2009-06-19 TW TW098120720A patent/TW201015597A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001229764A (ja) * | 2000-02-15 | 2001-08-24 | Oki Joho Systems:Kk | キースイッチ構造 |
JP2003308752A (ja) * | 2002-04-17 | 2003-10-31 | Nec Access Technica Ltd | 携帯端末の操作部照明構造及び携帯端末 |
JP2007280810A (ja) * | 2006-04-07 | 2007-10-25 | Oki Electric Ind Co Ltd | キースイッチ構造 |
JP2008060058A (ja) * | 2006-08-03 | 2008-03-13 | Citizen Electronics Co Ltd | 発光シートモジュール |
JP2008235065A (ja) * | 2007-03-22 | 2008-10-02 | Oki Electric Ind Co Ltd | キースイッチ構造 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200464827Y1 (ko) | 2010-06-23 | 2013-01-22 | 지피 테크놀로지 코포레이션 | 구분가능한 키 위치들이 제공되는 조명 키보드 |
KR200466306Y1 (ko) * | 2010-06-24 | 2013-04-08 | 지피 테크놀로지 코포레이션 | 국부 발광 키보드 |
JP2012134116A (ja) * | 2010-12-20 | 2012-07-12 | Primax Electronics Ltd | 発光キーボード |
Also Published As
Publication number | Publication date |
---|---|
KR101340795B1 (ko) | 2013-12-11 |
CN102113076B (zh) | 2016-01-20 |
US20110168537A1 (en) | 2011-07-14 |
CN102113076A (zh) | 2011-06-29 |
KR20110060885A (ko) | 2011-06-08 |
US8835785B2 (en) | 2014-09-16 |
TWI374464B (ja) | 2012-10-11 |
JP2010086907A (ja) | 2010-04-15 |
JP5375012B2 (ja) | 2013-12-25 |
TW201015597A (en) | 2010-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5375012B2 (ja) | キースイッチ構造 | |
US8735748B2 (en) | Keyboard structure | |
TWI385692B (zh) | 具背光功能之鍵盤 | |
JP4572924B2 (ja) | キースイッチ構造 | |
US7994445B2 (en) | Sheet switch, sheet switch module and panel switch | |
JP2008269864A (ja) | 押圧突起を備えたメタルドームシート及び押し釦スイッチ | |
JP2010061956A (ja) | 照光キースイッチ | |
JP2012079277A (ja) | 発光キーボード | |
US20110272262A1 (en) | Luminous keyboard | |
US9035806B2 (en) | Keyboard | |
JP2008152951A (ja) | シートスイッチモジュール | |
TWI451290B (zh) | 發光鍵盤 | |
TW201316368A (zh) | 發光鍵盤 | |
JP2008186674A (ja) | スイッチ用可動接点ユニットおよびそれを用いたスイッチ装置 | |
KR20110038707A (ko) | 입력 장치 및 입력 장치에 사용하기 위한 돔 부착 시트 | |
KR20090016398A (ko) | 스위치용 가동 접점 유닛 및 그것을 사용한 스위치 장치 | |
JP5488748B2 (ja) | キースイッチ構造 | |
JP2012089135A (ja) | 発光キーボード | |
JP5204018B2 (ja) | 照光機能を有するキーボード装置 | |
JP5619369B2 (ja) | シートスイッチ | |
JP5104941B2 (ja) | 可動接点体とこれを用いたスイッチ | |
JP2009026576A (ja) | 携帯端末用操作スイッチ | |
CN112185736A (zh) | 键盘装置 | |
JP2011040202A (ja) | 電子機器 | |
JP2011014492A (ja) | 照明機能を備えた電子機器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980130436.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09817555 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20117003058 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13063750 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09817555 Country of ref document: EP Kind code of ref document: A1 |