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WO2003043039A1 - Appareil télémétrique - Google Patents

Appareil télémétrique Download PDF

Info

Publication number
WO2003043039A1
WO2003043039A1 PCT/DE2002/003172 DE0203172W WO03043039A1 WO 2003043039 A1 WO2003043039 A1 WO 2003043039A1 DE 0203172 W DE0203172 W DE 0203172W WO 03043039 A1 WO03043039 A1 WO 03043039A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
foil
distance measuring
measuring device
counter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2002/003172
Other languages
German (de)
English (en)
Inventor
Joerg Stierle
Peter Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2003043039A1 publication Critical patent/WO2003043039A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01H13/78—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 the contacts or the contact sites
    • H01H13/807—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 the contacts or the contact sites characterised by the spatial arrangement of the contact sites, e.g. superimposed sites
    • 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
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/082—Properties of the membrane transparent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/034—Separate snap action
    • H01H2215/036—Metallic disc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/01—Mounting on appliance
    • H01H2223/014—Mounting on appliance located in recess
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/002—Switch site location superimposed

Definitions

  • the invention is based on a distance measuring device, in particular a hand-held device for non-contact distance measurement, according to the preamble of claim 1.
  • the upper housing shell of the double-shell housing of the distance measuring device is provided with various, window-like openings, one of which is used for the passage of a push button and another for the passage of control buttons of a keypad.
  • the pushbutton and control buttons are inserted as cap-shaped inserts in the openings and are connected on the underside to switching domes formed in a switching mat.
  • the switching domes bear on their
  • the switch mat is plate-shaped with the elevations forming the switch domes. With its rim encircling the switching domes, the switching mat is between a circumferential web which projects inwards on the upper housing shell and the Printed circuit board clamped so that the interior is sealed against the ingress of moisture and dirt through the gaps between the control buttons and the openings in the upper housing shell.
  • the pushbutton which is coupled to a two-stage pressure switch or double-stroke switch with a pressure point
  • a laser beam is first emitted, with which the object to be measured is aimed. If the pressure point is overcome by increasing the actuating force, the second switch stage closes and the distance measuring process is triggered.
  • the double-stroke function of the double-stroke switch is achieved in that the switching dome formed in the pressure mat and interacting with the pushbutton is designed in two stages, the lower dome stage being annular and partially receiving the upper dome stage. Each dome step is connected to the safety mat via a ring web, the lower ring web being more flexible than the upper ring web.
  • Claim 1 has the advantage that there is only a single component for the entire arrangement of the pushbutton switches, which has a good tightness of the electrical contacts against dust and water.
  • the keyboard has a long service life and is easy to clean if it is dirty.
  • the geometry of the keyboard can be designed individually, which means that special models and "private label” versions can be produced very cost-effectively.
  • the integration can be made possible in that at least the upper film is either made completely transparent or is provided with a transparent window cutout.
  • Membrane keyboards are available in various basic structures on the market, so that they can be purchased inexpensively and can be adapted to the specific requirements of the distance measuring device, and different basic structures of the membrane keyboard can be combined with one another for special purposes.
  • additional foils are stuck on top of one another and thus multi-stage switches with different actuation forces are obtained in the individual switching stages.
  • the membrane keyboard has a carrier foil, a counter-contact foil, a spacer foil and a cover foil, which lie one on top of the other in the order mentioned.
  • the counter-contact foil carries the counter contacts, which are preferably printed, on its top side facing away from the carrier foil
  • the cover foil carries the switch contacts, which are also preferably printed, on its underside facing the spacer foil
  • the spacer foil has recesses, each with a switch contact and counter contact are congruent, so that the switching contacts can contact the mating contacts through the cutouts.
  • the formation of at least one key switch as a double-stroke or two-stage switch with a mechanical pressure point when the second switching stage is actuated At least in the area of this key switch, a second counter-contact foil and a second and third spacer foil, which lie one on top of the other in the order mentioned, are arranged between the carrier foil and the first counter-contact foil with the second counter-contact foil resting on the carrier foil.
  • the third spacer film In the area of a mating contact on the mating contact film, the third spacer film has a recess into which a second switching contact provided with a curvature projects, to which a second switching contact formed on the second mating contact surface is assigned. If pressure is exerted on the cover membrane of the membrane keyboard, its switching contact first comes through the recess in the first spacer membrane with the associated one
  • the pushbuttons in the membrane keyboard can be actuated directly and manually via the cover foil, in particular when, according to an advantageous embodiment of the invention, the cover foil has bulges projecting outwards in the area of the switch contacts, on the inside of which the switch contact is applied.
  • Fig. 1 excerpts a perspective top view of a
  • Fig. 2 is a schematic representation of the section of a
  • Fig. 3 is the same representation as in Fig. 1 of a modified distance measuring device.
  • the distance measuring device which is only partially shown in an exploded view in FIG. 1 and is designed as a hand-held device, is used for contactless measurement of the distance of the measuring device from an object and works on the principle of the transit time measurement. It has a double-shell housing 10, of which only the upper housing shell 11 is shown. The upper housing shell 11 is provided with a recess 15 for receiving a membrane keyboard 21, the bottom 151 of which has a rectangular opening 12 for releasing a display panel or
  • Display 13 which is arranged on a circuit board 14 fastened inside the housing, and has a further, rectangular, small opening 16 for the passage of a ribbon cable 17 for connecting the membrane keyboard 21 to the circuit board 14.
  • the membrane keyboard 21 is inserted into the recess 15 so that an integrated, transparent cover 22 covers the opening 12, and is attached to the bottom 151 of the recess 15, for example glued.
  • a plurality of key switches for triggering various device functions are formed in the membrane keyboard 21.
  • a key switch 19 is designed as a double-stroke or two-stage switch, via the first switching stage of which a directional beam is first triggered, with which the distance measuring device is aligned with the object to be measured, and via the second switching stage, the is achieved by increased manual pressure, the measuring process is triggered.
  • Other device functions and displays can be triggered with further single-stage push buttons 20.
  • the structure of the membrane keyboard 21 can be seen in the schematic sectional illustration of the membrane keyboard 21 according to section line II - II in FIG. 1.
  • the membrane keyboard 21 is multi-layered and consists of several superimposed foils, which are shown in Fig. 2 only for the sake of clarity at a distance from each other, but are glued to each other in a more realist way.
  • the membrane keyboard 21 has a carrier foil 23, which is fastened to the bottom of the recess 15 in the housing shell 11, a counter-contact foil 24, on which the counter-contacts 25 of the push-button switches 19, 20 are printed, on the top side thereof facing away from the carrier foil 23, a spacer film 26, which has recesses 27 in the area of the counter contacts 25, and a cover film 28, on the underside of the spacer film 26 facing the area of the recesses 27, and thus opposite the counter contacts 25, the movable switch contacts 29 of the pushbutton switches 19, 20 are printed are.
  • the cover film 28 has bulges or bulges 30 protruding outwards in the region of the switch contacts 29, on the inside of which the switch contacts 29 are located.
  • the mating contacts 25 and the switching contacts 29 are designed as contact surfaces which come into surface contact with one another through the cutouts 27 when the pushbutton switches 19, 20 are actuated.
  • the switching contacts 29 are placed on the counter contacts 25 by means of manual actuation of the push buttons 19, 20.
  • the membrane keyboard 21 has, at least in the region of the key switch 19, a second counter-contact foil 31 with a counter-contact 32, a second spacer foil 33, in which a second switch contact 34 in the manner of a "snap frog" with a curvature 37 directed away from the second counter-contact 32 is formed in the region of the second counter-contact 32 by means of an inserted spring plate, and a third spacer foil 35 on the region the curvature 37 has a recess 36.
  • the second switching contact 34 can be placed on the second counter-contact 32 by pressing in the curvature 37 through the recess 36.
  • the foil layer formed by the second counter-contact foil 31 and second and third spacer foils 33 and 35 lying one on top of the other in the sequence mentioned is arranged between the carrier foil 23 and the first counter-contact foil 24 in such a way that the second counter-contact foil 31 lies on the carrier foil 23.
  • the bulge 30 with the first switch contact 29 is first pressed in, the first switch contact 29 being pushed through the cutout 27 in the spacer film 26 until it rests on the first counter contact 25.
  • a laser beam is triggered in the distance measuring device designed as a laser device, with which the object to be measured can be aimed in order to correctly align the distance measuring device.
  • the first counter-contact film 24 is now pressed through the recess 36 in the third spacer film 35 onto the curvature 37 of the second switching contact 34 in the second spacer film 33.
  • the curvature 37 is pressed in and thus the second switching contact 34 is placed on the second counter contact 32.
  • the actual distance measuring process is triggered in the measuring device.
  • the electrical connection of the membrane keyboard 21 to the printed circuit board 14 with the electrical components connected thereon takes place via the ribbon cable 17, for which purpose the two push-pull foils 24 and 31 are led out of the foil composite.
  • the carrier foil 23 and the second counter-contact foil 31, as shown in FIG. 2 can be omitted in the membrane keyboard 21.
  • Their function is taken over by the circuit board 14 in that the circuit board 14 carries the second mating contact 32 directly.
  • a stepped opening 38 is incorporated in the upper housing shell 11, on the underside of which the lower opening step 382 with transverse cross-pieces 39 covering the smaller cross section are provided.
  • the invention is not restricted to the exemplary embodiment described.
  • a so-called cracking film By inserting a so-called cracking film, the pressure point for closing the key switches 19, 20 can be increased.
  • Such snap films have bulges which point outwards in the region of the pushbutton switches 19, 20 and which suddenly jump inwards when there is sufficient pressure and thus allow the pushbutton switches 19, 20 to be closed. After removal of pressure, these bulges return to their original position.

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)

Abstract

L'invention concerne un appareil télémétrique comportant un ensemble de plusieurs commutateurs à touches (19, 20) à actionnement manuel pour déclencher des fonctions de l'appareil, ces commutateurs comprenant chacun au moins un contact de commutation (29, 37) électrique mobile et un contact antagoniste (25, 32) électrique associé. L'invention vise à réaliser un ensemble de commutateurs à touches (19, 20) de fabrication simple et présentant une bonne étanchéité à la poussière et à l'eau. A cet effet, l'ensemble de commutateurs (19, 20) est conçu comme un clavier à effleurement (21) constitué de plusieurs feuilles comprenant des contacts de commutation et des contacts antagonistes (29, 34, 25, 32) positionnés en conséquence, ce clavier étant pourvu d'au moins un commutateur à touche (20) à fonction de connexion en cascade.
PCT/DE2002/003172 2001-11-10 2002-08-29 Appareil télémétrique Ceased WO2003043039A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10155397.8 2001-11-10
DE2001155397 DE10155397A1 (de) 2001-11-10 2001-11-10 Entfernungsmessgerät

Publications (1)

Publication Number Publication Date
WO2003043039A1 true WO2003043039A1 (fr) 2003-05-22

Family

ID=7705396

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/003172 Ceased WO2003043039A1 (fr) 2001-11-10 2002-08-29 Appareil télémétrique

Country Status (2)

Country Link
DE (1) DE10155397A1 (fr)
WO (1) WO2003043039A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20303924U1 (de) 2003-03-12 2003-05-08 Schurter Gmbh 2-stufiger Taster
FR2937178B1 (fr) * 2008-10-09 2016-02-05 Dav Dispositif de commande a surface tactile

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349712A (en) * 1979-01-25 1982-09-14 Itt Industries, Inc. Push-button switch
US4626847A (en) * 1983-12-27 1986-12-02 Zenith Electronics Corporation Remote control transmitter system
EP0300750A2 (fr) * 1987-07-20 1989-01-25 Leona Electronics Co., Ltd Calculatrice
US5573107A (en) * 1994-08-10 1996-11-12 Shin-Etsu Polymer Co., Ltd. Internally-illuminable push-button switch unit
DE19809684A1 (de) * 1998-03-06 1999-09-09 Bosch Gmbh Robert Drucktastenanordnung
EP0943981A2 (fr) * 1998-03-18 1999-09-22 Rose-Elektrotechnik GmbH + Co KG Elektrotechnische Fabrik Boitier de clavier comportant au moins un panneau

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349712A (en) * 1979-01-25 1982-09-14 Itt Industries, Inc. Push-button switch
US4626847A (en) * 1983-12-27 1986-12-02 Zenith Electronics Corporation Remote control transmitter system
EP0300750A2 (fr) * 1987-07-20 1989-01-25 Leona Electronics Co., Ltd Calculatrice
US5573107A (en) * 1994-08-10 1996-11-12 Shin-Etsu Polymer Co., Ltd. Internally-illuminable push-button switch unit
DE19809684A1 (de) * 1998-03-06 1999-09-09 Bosch Gmbh Robert Drucktastenanordnung
EP0943981A2 (fr) * 1998-03-18 1999-09-22 Rose-Elektrotechnik GmbH + Co KG Elektrotechnische Fabrik Boitier de clavier comportant au moins un panneau

Also Published As

Publication number Publication date
DE10155397A1 (de) 2003-05-22

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