CA1330357C - Lever positioning register for vehicle transmission switch - Google Patents
Lever positioning register for vehicle transmission switchInfo
- Publication number
- CA1330357C CA1330357C CA 592421 CA592421A CA1330357C CA 1330357 C CA1330357 C CA 1330357C CA 592421 CA592421 CA 592421 CA 592421 A CA592421 A CA 592421A CA 1330357 C CA1330357 C CA 1330357C
- Authority
- CA
- Canada
- Prior art keywords
- substrate
- movable contact
- switch
- reference portion
- fixed contacts
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/48—Contacts characterised by the manner in which co-operating contacts engage by sliding with provision for adjusting position of contact relative to its co-operating contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
- H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
- H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
- H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Switches With Compound Operations (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
ABSTRACT OF DISCLOSURE
A switch includes a movable member provided with a movable contact thereon and a substrate provided with fixed contacts thereon with which the movable contact contacts.
The movable member is driven by an operating lever secured thereto to slide over the substrate so that the movable contact is shifted from one fixed contact to another. The switch comprises a first reference portion provided on the operating lever and a second reference portion provided on the substrate. The movable contact is accurately positioned on the substarate with respect to the fixed contacts when the first reference portion is positioned to align with the second reference portion.
A switch includes a movable member provided with a movable contact thereon and a substrate provided with fixed contacts thereon with which the movable contact contacts.
The movable member is driven by an operating lever secured thereto to slide over the substrate so that the movable contact is shifted from one fixed contact to another. The switch comprises a first reference portion provided on the operating lever and a second reference portion provided on the substrate. The movable contact is accurately positioned on the substarate with respect to the fixed contacts when the first reference portion is positioned to align with the second reference portion.
Description
~` 1 330357 BACKGROUND OF THE INVENTION
[Field of the Invention] -The present invention relates to a variety of switches ~;
including rotary switches and slide switches, and more particularly to a switch that provides improved accuracy of -setting position of a movable contact relative to fixed contacts.
~Prior Art] `~
Conventionally, a wide variety of switches such as -~
rotary switches and slide switches have been used as a shift switch, where a movable member on which a movable - - -contact is provided is driven by an operating lever thereof to slide over a substrate having fixed contacts disposed thereon, thereby switching the fixed contacts from one to another. Japanese Utility Model Preliminary Publication ;~
No.55-2041 discloses one such switch, for example. These switches often require accurate positioning of the position of acommon contact or movable contact relative to fixed contacts. An inhibitter switch, for example, is attached to an automatic transmission of a vehicle and is driven through lever operation of the automatic transmission for setting cruising conditions of the vehicle. The inhibitter switch is shifted its movable contact between a plurality ,~
,, , ~ .
, ' of fixed contacts, from one fixed contact to another disposed on the substrate, in accordance with the swing angle of the lever that is connected to a control shaft of the automatic transmission. Since this switch is installed to work with the transmission, a large amount of positional error of the movable contacts greatly affects transfflission control itself. Thus a high positional accuracy between the movable contact and the fixed contacts is of great importance.
The aforementioned prior art switches suffer from the disadvantages that there is no positional references for ;~
the lever of the switch to be positioned so that the movable contact is suitably positioned relative to the ;~
respective contacts disposed on the switch substrate, thus "~.~!''.'; '~'' exhibiting a poor positioning accuracy of the movable contact.
:i. :,:
SUMMARY OF THE INVENTION
With the foregoing in mind, the present invention was made to provide a switch in which a movable contact moves on the substrate to switch between a plurality of contacts from one fixed contact to another disposed on the substrate, characterized in that the above-described switch -~
lever and the substrate are each provided with a reference :. . -:
., ~ .
setting portion, thereby overcoming the drawbacks in the prior art switches.
Another aspect of this invention is as follows.
A switch for use in connection with a machine to control an operational condition o~ the machine including a movable member provided with at least one movable contact thereon and a substrate provided with fixed contacts thereon with which said movable contact engages, said movable member being driven by an operating lever secured thereto to slide over said substrate so that said movable contact is shifted from one fixed contact to another, wherein said switch comprises:
a first reference portion on said operating lever;
and a second reference portion provided on said `~
substrate at the time said substrate is manufactured and before said switch is assembled; ~ ~ ;
wherein said movable contact is accurately ` ; ~`
positioned on said substrate with respect to said fixed contacts in a position corresponding to a predet~rmined operational condition of the machine when said first reference portion is positioned to align with said second reference portion.
..
BRIEF DESCRIPTION OF_THE DRAWINGS
Features and details of the invention will be apparent from description of a specific embodiment described with reference to the accompanying drawings, in which:
FIG. 1 to FIG. 3 illustrate an embodiment of a shift switch according to the present invention;
FIG. 1 i~ a plan view of a cross-section of the switch according to the invention;
FIG. 2 i9 a top view of the switch shown in FIG. l;
and ~ '~ . ' '; ' ~`,' ' 1 33~357 4a FIG. 3 i5 a top view of the substrate shown in FIG.
1.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
A preferred embodiment of an inhibiter switch to which the present invention is applied will now be described in detail with reference to the accompanying drawings as follows. A case 1 is formed in the shape of a thin frame to which a substrate 2 is secured by means of screws or the like. On the case 1 is formed an elongate hole la for mounting the case 1 to an automatic transmission (not shown).
'; ': ' '-` `
` 5 1 330357 ~`:
The substrate ~ is provided a projection 2a formed thereon around which a plurality of fixed contacts 3 are disposed concentrically as sh~wn in FIG.3. The substrate 2 is provided with a connector 2b formed integrally therewith for connecting the movable contact and the respective fixed contacts with external wirings.
A movable member 4 comprises a shaft 4a rotatably journalled by a journal hole lb of the case 1 and an arm 4b formed integrally with and exteding ~t substantially right angle from the shaft 4a. The lower end of the shaft 4a is supported pivotally at the projection 2a, thereby defining a center of pivotal motion of the movable member 4 with respect to the substrate 2. The arm 4b is provided with movable contacts 6, each urged by a comprëssion spring 5 so that they engage the fixed contacts 3 through depressive force of the compression spring 5.
An operating lever 7 is secured at one end thereof to an upper end portion of the shaft 4a of the movable member 4 and is formed a connecting hole 7a thereon to w~lich a drive arm (not shown) driven by a control shaft of the automatic transmission is connected.
In the vicinity of the free end of the operating lever 7, there is provided a through hole ~b which serves as a reference portion for the operating lever to be positioned ~:::.. ~.
; `' ,' ~' ~
in place. On the upper surface of the substrate 2 is formed a protrusion 2d having a blind hole 2c therewithin.
This blind hole 2c serves as a reference portion with which -the through hole 7b is to be aligned. The position of the through hole 2c on the substrate 2 is determined so that the inhibitter switch is at a position N, a neutral position of the transmission, when the through hole 7b is directly in line with the blind hole 2c on an axis therethrough at a position No. Therefore fit-inserting an end portion 8a of a setting jig 8 into the blind hole 2c and a rear end portion 8b into the through hole 7b permits the movable contact mounted on the arm 4b to take up an ~ -accurate angular position with resepect to the fixed contacts 3 on the substrate 2. ~ -The respective references, i.e., the through hole 7b and the blind hole are only exemplary and many variation may be made as far as the angular position of the lever 7 thus movable contact can be positioned in place with respect to the fixed contacts on the substrate. Also, the construction of the protrusion 2d projecting upwardly is exemplary only.
,." ",'.,.,',", .
''.'."' " '''.''``
,~: .~'. ' ' ' ~;.",''' ~`'':
[Field of the Invention] -The present invention relates to a variety of switches ~;
including rotary switches and slide switches, and more particularly to a switch that provides improved accuracy of -setting position of a movable contact relative to fixed contacts.
~Prior Art] `~
Conventionally, a wide variety of switches such as -~
rotary switches and slide switches have been used as a shift switch, where a movable member on which a movable - - -contact is provided is driven by an operating lever thereof to slide over a substrate having fixed contacts disposed thereon, thereby switching the fixed contacts from one to another. Japanese Utility Model Preliminary Publication ;~
No.55-2041 discloses one such switch, for example. These switches often require accurate positioning of the position of acommon contact or movable contact relative to fixed contacts. An inhibitter switch, for example, is attached to an automatic transmission of a vehicle and is driven through lever operation of the automatic transmission for setting cruising conditions of the vehicle. The inhibitter switch is shifted its movable contact between a plurality ,~
,, , ~ .
, ' of fixed contacts, from one fixed contact to another disposed on the substrate, in accordance with the swing angle of the lever that is connected to a control shaft of the automatic transmission. Since this switch is installed to work with the transmission, a large amount of positional error of the movable contacts greatly affects transfflission control itself. Thus a high positional accuracy between the movable contact and the fixed contacts is of great importance.
The aforementioned prior art switches suffer from the disadvantages that there is no positional references for ;~
the lever of the switch to be positioned so that the movable contact is suitably positioned relative to the ;~
respective contacts disposed on the switch substrate, thus "~.~!''.'; '~'' exhibiting a poor positioning accuracy of the movable contact.
:i. :,:
SUMMARY OF THE INVENTION
With the foregoing in mind, the present invention was made to provide a switch in which a movable contact moves on the substrate to switch between a plurality of contacts from one fixed contact to another disposed on the substrate, characterized in that the above-described switch -~
lever and the substrate are each provided with a reference :. . -:
., ~ .
setting portion, thereby overcoming the drawbacks in the prior art switches.
Another aspect of this invention is as follows.
A switch for use in connection with a machine to control an operational condition o~ the machine including a movable member provided with at least one movable contact thereon and a substrate provided with fixed contacts thereon with which said movable contact engages, said movable member being driven by an operating lever secured thereto to slide over said substrate so that said movable contact is shifted from one fixed contact to another, wherein said switch comprises:
a first reference portion on said operating lever;
and a second reference portion provided on said `~
substrate at the time said substrate is manufactured and before said switch is assembled; ~ ~ ;
wherein said movable contact is accurately ` ; ~`
positioned on said substrate with respect to said fixed contacts in a position corresponding to a predet~rmined operational condition of the machine when said first reference portion is positioned to align with said second reference portion.
..
BRIEF DESCRIPTION OF_THE DRAWINGS
Features and details of the invention will be apparent from description of a specific embodiment described with reference to the accompanying drawings, in which:
FIG. 1 to FIG. 3 illustrate an embodiment of a shift switch according to the present invention;
FIG. 1 i~ a plan view of a cross-section of the switch according to the invention;
FIG. 2 i9 a top view of the switch shown in FIG. l;
and ~ '~ . ' '; ' ~`,' ' 1 33~357 4a FIG. 3 i5 a top view of the substrate shown in FIG.
1.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
A preferred embodiment of an inhibiter switch to which the present invention is applied will now be described in detail with reference to the accompanying drawings as follows. A case 1 is formed in the shape of a thin frame to which a substrate 2 is secured by means of screws or the like. On the case 1 is formed an elongate hole la for mounting the case 1 to an automatic transmission (not shown).
'; ': ' '-` `
` 5 1 330357 ~`:
The substrate ~ is provided a projection 2a formed thereon around which a plurality of fixed contacts 3 are disposed concentrically as sh~wn in FIG.3. The substrate 2 is provided with a connector 2b formed integrally therewith for connecting the movable contact and the respective fixed contacts with external wirings.
A movable member 4 comprises a shaft 4a rotatably journalled by a journal hole lb of the case 1 and an arm 4b formed integrally with and exteding ~t substantially right angle from the shaft 4a. The lower end of the shaft 4a is supported pivotally at the projection 2a, thereby defining a center of pivotal motion of the movable member 4 with respect to the substrate 2. The arm 4b is provided with movable contacts 6, each urged by a comprëssion spring 5 so that they engage the fixed contacts 3 through depressive force of the compression spring 5.
An operating lever 7 is secured at one end thereof to an upper end portion of the shaft 4a of the movable member 4 and is formed a connecting hole 7a thereon to w~lich a drive arm (not shown) driven by a control shaft of the automatic transmission is connected.
In the vicinity of the free end of the operating lever 7, there is provided a through hole ~b which serves as a reference portion for the operating lever to be positioned ~:::.. ~.
; `' ,' ~' ~
in place. On the upper surface of the substrate 2 is formed a protrusion 2d having a blind hole 2c therewithin.
This blind hole 2c serves as a reference portion with which -the through hole 7b is to be aligned. The position of the through hole 2c on the substrate 2 is determined so that the inhibitter switch is at a position N, a neutral position of the transmission, when the through hole 7b is directly in line with the blind hole 2c on an axis therethrough at a position No. Therefore fit-inserting an end portion 8a of a setting jig 8 into the blind hole 2c and a rear end portion 8b into the through hole 7b permits the movable contact mounted on the arm 4b to take up an ~ -accurate angular position with resepect to the fixed contacts 3 on the substrate 2. ~ -The respective references, i.e., the through hole 7b and the blind hole are only exemplary and many variation may be made as far as the angular position of the lever 7 thus movable contact can be positioned in place with respect to the fixed contacts on the substrate. Also, the construction of the protrusion 2d projecting upwardly is exemplary only.
,." ",'.,.,',", .
''.'."' " '''.''``
,~: .~'. ' ' ' ~;.",''' ~`'':
Claims
1. A switch for use in connection with a machine to control an operational condition of the machine including a movable member provided with at least one movable contact thereon and a substrate provided with fixed contacts thereon with which said movable contact engages, said movable member being driven by an operating lever secured thereto to slide over said substrate so that said movable contact is shifted from one fixed contact to another, wherein said switch comprises:
a first reference portion on said operating lever;
and a second reference portion provided on said substrate at the time said substrate is manufactured and before said switch is assembled;
wherein said movable contact is accurately positioned on said substrate with respect to said fixed contacts in a position corresponding to a predetermined operational condition of the machine when said first reference portion is positioned to align with said second reference portion.
a first reference portion on said operating lever;
and a second reference portion provided on said substrate at the time said substrate is manufactured and before said switch is assembled;
wherein said movable contact is accurately positioned on said substrate with respect to said fixed contacts in a position corresponding to a predetermined operational condition of the machine when said first reference portion is positioned to align with said second reference portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-67766 | 1988-05-23 | ||
| JP1988067766U JPH0612586Y2 (en) | 1988-05-23 | 1988-05-23 | Changeover switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1330357C true CA1330357C (en) | 1994-06-21 |
Family
ID=13354391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 592421 Expired - Fee Related CA1330357C (en) | 1988-05-23 | 1989-03-01 | Lever positioning register for vehicle transmission switch |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0612586Y2 (en) |
| CA (1) | CA1330357C (en) |
| DE (1) | DE3910962C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9212530U1 (en) * | 1992-09-17 | 1992-11-19 | AB Elektronik GmbH, 4712 Werne | Switch arrangement for an automatic transmission |
| JP4645788B2 (en) * | 2001-08-27 | 2011-03-09 | アイシン・エィ・ダブリュ株式会社 | Neutral start switch and alignment jig used for alignment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552041U (en) * | 1978-06-20 | 1980-01-08 | ||
| DE3131003A1 (en) * | 1981-08-05 | 1983-02-24 | SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen | Electrical switch, especially for motor vehicles |
| DE3150210C2 (en) * | 1981-12-18 | 1983-11-03 | Sds-Elektro Gmbh, 8024 Deisenhofen | Electrical snap switch |
| JPS59177136U (en) * | 1983-05-13 | 1984-11-27 | ナイルス部品株式会社 | Inhibitor switch base structure |
| JPS6032726U (en) * | 1983-08-10 | 1985-03-06 | 株式会社東海理化電機製作所 | Transmission shift position detection switch |
| JPH0451397Y2 (en) * | 1987-04-13 | 1992-12-03 | ||
| JPS63162427U (en) * | 1987-04-13 | 1988-10-24 |
-
1988
- 1988-05-23 JP JP1988067766U patent/JPH0612586Y2/en not_active Expired - Lifetime
-
1989
- 1989-03-01 CA CA 592421 patent/CA1330357C/en not_active Expired - Fee Related
- 1989-04-05 DE DE19893910962 patent/DE3910962C2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01170924U (en) | 1989-12-04 |
| DE3910962A1 (en) | 1989-12-07 |
| JPH0612586Y2 (en) | 1994-03-30 |
| DE3910962C2 (en) | 2002-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100219980B1 (en) | Rotating operating type electric switch | |
| US7053320B2 (en) | Switch device | |
| CA1330357C (en) | Lever positioning register for vehicle transmission switch | |
| US5619886A (en) | Operable angle adjusting structure for wiper | |
| KR100264017B1 (en) | Rotary switch | |
| JPH10223097A (en) | Combination switch unit | |
| US5698909A (en) | Multi-function switch | |
| JPH0343629Y2 (en) | ||
| JP2570837Y2 (en) | Lever switch | |
| US4397336A (en) | Control device for hydraulic spool valves | |
| JPH01500941A (en) | Switches, especially automotive steering column switches | |
| US5555973A (en) | Slide switch device | |
| US4179593A (en) | Change-over switch for printed circuit board | |
| CN114442731A (en) | Spherical surface sealed type three-freedom-degree operating lever | |
| JPH07169362A (en) | Trigger switch | |
| CN217713605U (en) | Rotary pressing type key, electronic gear shifting handball and vehicle | |
| JP3472892B2 (en) | Sliding switch device | |
| JP2502709Y2 (en) | Multi-directional control switch | |
| JP4185576B2 (en) | Switch device | |
| JP2785713B2 (en) | Stick lever device | |
| CN211265286U (en) | Control device for generating rotary damping by using elastic force | |
| JPH11304835A (en) | Fixture for contact probe | |
| JPS6111761Y2 (en) | ||
| JP3170187B2 (en) | Steering column switch | |
| JP3108009B2 (en) | Sliding switch structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |