CN1164747A - Rotary operation type switch - Google Patents
Rotary operation type switch Download PDFInfo
- Publication number
- CN1164747A CN1164747A CN 97100814 CN97100814A CN1164747A CN 1164747 A CN1164747 A CN 1164747A CN 97100814 CN97100814 CN 97100814 CN 97100814 A CN97100814 A CN 97100814A CN 1164747 A CN1164747 A CN 1164747A
- Authority
- CN
- China
- Prior art keywords
- contact
- lever
- backing plate
- slidingtype
- operation type
- 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.)
- Granted
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Contacts (AREA)
Abstract
The invention relates to a rotary operation type switch, which adopts the so-called sliding contact structure. The switch is structured by a backing plate which is provided with fixed contacts, a lever which can be supported rotatablely on the backing plate and formed with the sliding contacts in an integrative way, and a cover cap element. The sliding contacts slide on the inner underside of the backing plate according to the rotation movement of the lever, so as to eliminate the bad contact caused by the attachment of the exterior material on the surface of the sliding contacts and the fixed contacts. Thereby, the switching operation between the sliding contacts and the fixed contacts can be guaranteed stably.
Description
The present invention relates to rotary operation type switch, carry out switching manipulation between the spinning movement connecting and disconnecting state of this switch according to lever.
An example as such rotary operation type switch, Japan special permission prospectus spy opens flat 5-211021 and once proposed a kind of switch, the rotary operation type switch of this prior art is made up of following parts: the backing plate of being made and be provided with at an upper portion thereof opening by synthetic resin, be rotated and prop up the lever that is held on this backing plate, make and remain on slidingtype contact on this lever by conductive metal, be used to cover the cover elements of this backing plate opening, also have and be in the shared fixed contact that contacts with the slidingtype contact all the time and can set up and the contacted switch fixed contact of disconnection and slidingtype contact at the inner bottom surface of backing plate.
In the rotary operation type switch that so constitutes, when lever is in off position, the slidingtype contact keeping with the vertical substantially direction in switch fixed contact surface on away from this surperficial initial position, therefore, keeping off-state.In the case, be the spinning movement of response lever, the slidingtype contact begins to contact with the surface of switch fixed contact, thereby, insert in the conducting between the shared fixed contact of generation and switch fixed contact under between the two the state in the slidingtype contact.As a result, switch changes on-state under its off-state.And then, when to the lever pressure relief, because the elastic force of slidingtype contact make lever and slidingtype contact return initial position, thereby the slidingtype contact separates, and makes switch enter off-state once again with the switch fixed contact.
Because above-mentioned prior art rotary operation type switch relates to a kind of contact structures, also promptly be called the butt contact structure, wherein, the slidingtype contact is from contacting with the surface of switch fixed contact with its vertical substantially direction, here have such problem, promptly oxide-film, sulfide film dust etc. is appended on the surface of slidingtype contact, therefore, be difficult to guarantee stable contact-making switch operation.
Because the shortcoming of prior art is developed meticulously through the inventor, finish the present invention finally.
The object of the invention is: provide a kind of and can realize stablizing the rotary operation type switch of contact-making switch operation.
The present invention seeks to realize like this: a kind of rotary operation type switch is provided, described switch is made up of backing plate, slidingtype contact, lever and cover elements, wherein, described backing plate has opening at an upper portion thereof, also has the fixed contact towards described opening within it on the bottom surface; Engaging of foundation or disconnection and fixed contact can be implemented in described slidingtype contact; Described lever is equipped with the slidingtype contact and rotary type is supported on the described backing plate; Described cover elements is used for the described opening of cover cap.According to the present invention, slidingtype contact and the whole formation of lever that rotatably is supported on the backing plate, slide along the backing plate inner bottom surface according to the spinning movement of lever in described slidingtype contact, thereby the slidingtype contact contacts with the fixed contact that forms on the backing plate inner bottom surface.Therefore, what the present invention was used is so-called sliding contact structure, in this structure, the production method of this contact-making switch is to slide on the fixed contact surface in the slidingtype contact, and this structure can prevent because foreign substance such as oxide-film adhere to caused loose contact on slidingtype contact and the fixed contact surface.
Although the shape of cover elements does not add restriction, as long as it can prevent that lever from coming off, if but it is made into and has the disconnection portion of stretching out along the lever surfaces of revolution and stretch to the lever segment in the outside from disconnection portion, that just may solve the problem that its shape makes a variation on the lever external form.
In addition, if the slidingtype contact is so made, being about to the conductive metal plate curves roughly the U font and is fixed on the lever to end of its sweep of major general and slidingtype contact, form the contact zone in the other end of slidingtype contact simultaneously, so, sliding contact just can have the elasticity of assurance and lever returns flexible contact pressure.
Moreover, although the pivot structure of lever does not add restriction, be snapped the hole that is connected to wherein if be convexly set on the lever and in backing plate, make a pivot as the pivot of pivot, so, assembly working is with more convenient.
The present invention has good result and advantage.Owing to can use so-called sliding contact structure, in this structure with the slidingtype contact with prop up the lever integral body that is held on the backing plate rotatably and make, and slideable contact made along with the lever spinning movement on the inner bottom surface of backing plate, slide, so, slide on the surface of the fixed contact that is used for contact-making switch in the slidingtype contact, therefore, sure loose contact due to preventing to be attached on slidingtype contact and the fixed contact by foreign substance such as oxide-film.
On cover elements, be provided with to make and make it stretch out disconnection portion outside, thereby can solve lever shape variation problem along disconnection portion that the lever surfaces of revolution stretches out and with the part of lever.
Make the slidingtype contact by the conductive metal plate being curved roughly the U font, and it is fixed together to lever to its sweep of major general and slidingtype contact, and the other end in the slidingtype contact forms contact portion, like this, the elastic force of required contact pressure in the time of just giving security slidingtype contact of use, required elastic force in the time of can also providing lever to return.
More and, will be located on the lever as the pivot of lever pivot, on backing plate, be provided with the hole of biting pivot therein, so just can simplify assembly process.
Below in conjunction with embodiment and cooperate that the present invention is described in detail with accompanying drawing.
Fig. 1 is the sectional view of embodiment of the invention rotary operation type switch;
Fig. 2 is used for backing plate plane graph of the present invention;
Fig. 3 is the decomposition diagram of switch of the present invention;
Fig. 4 is the enlarged perspective of the full backing plate major part of Fig. 2 structure;
Fig. 5 illustrates the perspective view of the remodeling lever that is used for this switch.
From Fig. 1 as seen, it is backing plate 4 that this rotary operation type switch is mainly formed, slidingtype contact 5, lever 6 and cover elements 8, wherein, backing plate has opening 1 at an upper portion thereof, also has fixed contact 3 within it on the bottom surface 2 towards opening 1, slidingtype contact 5 can be set up or the engaging of disconnection and fixed contact 3, described lever 6 is equipped with slidingtype contact 5 and rotatably is supported on the backing plate 4, cover elements 7 is installed in the top of backing plate 4, be used for cap opening 1, wherein, the inner bottom surface 2 along backing plate 4 slides according to the rotation of described lever 6 in described slidingtype contact, contacts or leaves from it with fixed contact 3.
Described backing plate 4 is by insulating synthetic resin one mold casting forming, on the inner bottom surface 2 of backing plate 4, activity direction along slidingtype contact 5 has fixed contact 3 and shared fixed contact 8, serves as external lug 3a and 8a respectively because these fixed contacts reach below the backing plate 4.The configuration of fixed contact 3 is only relevant with end one side of the event trace of slidingtype contact 5, and the configuration of shared fixed contact 8 is relevant with the whole area of slidingtype contact 5 event traces.On the other hand, sliding contact is always carried out with shared fixed contact 8 in slidingtype contact 5, be provided with a pair of ear 9 global formation, that also outwards protrude on the top of backing plate 4, and each ear 9 has a shaped hole 11, this hole 11 is inserted the end of pivot 10, insert wherein pivot, thereby pivot 10 can be rotated as lever 6.In addition, form lozenges 12 in the inboard of each ear 9, when this face tilts during to upside laterally.
Above-mentioned slidingtype contact 5 is the insulated springs that curve the U font, and an end of this slidingtype contact 5 is locked in the bottom of lever 6, opens a seam 14 thereon, and this seam extends to its other end from middle bend 3.In addition, contact site 15,16 is because the seam 14 and opposite side of slidingtype divided into two parts contact forms, and in rear surface one side with near bend 13, convex with riser portions 17.
Above-mentioned lever 6 has the bottom 18 that is contained in the backing plate, and an end of 18 stretches into described pivot 10 from the bottom in both sides, and protuberance 19 18 protrudes upward from the bottom, and described each parts all are integrated each other.And, be provided with the locking ditch near the bottom of pivot 10, in bottom 18, thereby an end of slidingtype contact 5 is locked in the locking ditch 20.In addition, 18 approximate centre position is provided with the extension 21 that stretches out to both sides in the bottom, thereby locks with the bend 13 and the riser portions 17 of this extension 21 with slidingtype contact 5.
Above-mentioned cover elements 7 is molded and shaped by insulating synthetic resin, and it has the recessed moulding in two sides, and cover elements 7 is extended downwards from both sides, by the interlock of the side portion of backing plate 4 institute.Cover elements 7 has notch 22, and this notch is located at its top in a side, and this notch 22 the protuberance 19 of lever 6 vertically on extend.Moreover notch 23 is located at the middle part of cover elements 7 end faces, and it partly holds the bottom 18 of lever 6, also has two notchs 24 in addition, and they open laterally, in order to the ear 9 that holds backing plate 4.
When this rotary operation type switch of assembling, at first slidingtype contact 5 integral body are put into backing plate 6, in more detail, an end of slidingtype contact 5 is locked in the locking ditch 20 of lever 6, then, under seam 14 interlocking patterns of the bottom of bottom 18 and slidingtype contact 5, exerted pressure in 18 pairs of slidingtype contacts 5, bottom, as a result, the extension 21 of bottom 18 is snapped in wherein being fixed between bend 13 and the riser portions 17.Subsequently, pivot 10 both ends of lever 16 all with the lozenges 12 snap-in states of the ear 9 of backing plate 4 under, when from last pressure lever 6, the both ends of the lozenges guiding pivot 10 of ear 9 are snapped in hole 11 them, thereby lever 6 and slidingtype contact 5 become each other and integrally are placed within the backing plate 4.Subsequently, with cover elements 7 from being buckled on the backing plate 4, thereby the protuberance 11 of lever 6 stretches out the outside from the notch 22 of cover elements 7, and the both sides of cover elements 7 are locked to the both sides of backing plate 4.
Assembling in this rotary operation type switch with such formality, when it under initial state not, lever 6 is in initial position, as shown in Figure 1.Under this state, although a contact site 16 of slidingtype contact 5 is placed in the sliding contact with shared fixed contact 8,, 15 of another contact sites are in the position away from fixed contact 3, and therefore, switch is being held off-state.If under this state, the protuberance 19 of lever 6 is pressed, then lever 6 deasil centers on pivot 10 rotations among Fig. 1, and slidingtype contact 5 also deasil centers on pivot 10 rotations in the accompanying drawing 1, contact site 15,16 along the inner bottom surface 2 of backing plate 4 to the left of Fig. 1 to slip, the contact site 15 of slidingtype contact 5 is contacted with fixed contact 3, therefore, enter on-state.And when to lever 6 pressure relieves, slidingtype contact 5 is owing to the elastic force of itself is got back to its original state, therefore, lever 6 is also pushed back the initial position of Fig. 1, and is this operation of response, the contact site 15 of slidingtype contact 5 leaves from fixed contact 3, therefore becomes off-state.
Because the embodiment of the invention is used structure as mentioned above, it is so-called sliding contact structure, wherein, the contact site of slidingtype contact 5 slides on the inner bottom surface of backing plate 4 according to the spinning movement of lever 6, even there are oxidation film or sulfide film to be attached on slidingtype contact 5 and the fixed contact 3, this oxidation film and sulfide film can be removed in sliding action automatically, therefore, guarantee stable contact-making switch operation.Moreover, under lever 6 is placed into state in the cover elements 7, when with cover elements 7 on being placed on backing plate 4 time, because the protuberance 19 of lever 6 is protruding by the notch 22 of cover elements 7, so even, for example shown in Figure 5, when the protuberance 19a of lever 6a generation can cross out the length variations of backing plate 4 such quite big degree, lever 6 still can be inserted the backing plate 4 from backing plate 4 upsides, and this is suitable for the vicissitudinous situation of lever profile.More and, because slidingtype contact 5 combines with lever 6 integral body in advance, and the lever 6 of integration is snapped at backing plate 4, simplified thereby assembling procedure becomes.
In addition, because the elastic force of sliding contact 5 can guarantee its contact pressure to fixed contact 3 and 8, can guarantee that it gets back to initial position itself, this is few compared with the required space in a return mechanism and slidingtype contact 5 is installed, tightly held by 6 on lever owing to slidingtype contact 5 again, and slidingtype contact 5 and lever 6 move together, and this moves required space and just can reduce.Therefore, provide be suitable for small-sized rotary operation type switch just become may.
Claims (4)
1. rotary operation type switch, it is characterized in that: be made up of backing plate, slidingtype contact, lever and cover elements, wherein, described backing plate has opening at an upper portion thereof, also has the fixed contact towards described opening within it on the bottom surface; Engaging of foundation or disconnection and fixed contact can be implemented in described slidingtype contact; Described lever is equipped with the slidingtype contact and rotatably is supported on the backing plate, described cover elements is used for the described opening of cover cap, wherein, the inner bottom surface along described backing plate slides according to the rotation of described lever in described slidingtype contact, so that contact or leave from it with described fixed contact.
2. according to the described rotary operation type switch of claim 1, it is characterized in that: described cover elements has the notch that extends along the described lever surfaces of revolution, and makes the part of described lever stretch out the outside from described notch.
3. according to claim 1 or 2 described rotary operation type switchs, it is characterized in that: make by curving roughly the metallic plate of U font described slidingtype contact, and its bend and described sliding contact end is locked to described lever at least, and another end of described slidingtype contact then forms the contact zone.
4. according to the described rotary operation type switch of claim 3, it is characterized in that: pivot is convexly set on the described lever as its pivot, be provided with the hole in described backing plate, thereby described pivot is snapped at wherein.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4628396A JPH09245573A (en) | 1996-03-04 | 1996-03-04 | Rotary switch |
| JP046283/96 | 1996-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1164747A true CN1164747A (en) | 1997-11-12 |
| CN1053520C CN1053520C (en) | 2000-06-14 |
Family
ID=12742905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97100814A Expired - Fee Related CN1053520C (en) | 1996-03-04 | 1997-03-04 | Rotary operation type switch |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH09245573A (en) |
| CN (1) | CN1053520C (en) |
| MY (1) | MY118436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446145C (en) * | 2005-05-16 | 2008-12-24 | 松下电器产业株式会社 | Switch |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014035884A (en) * | 2012-08-09 | 2014-02-24 | Panasonic Corp | Electromagnetic relay |
| JP6539535B2 (en) * | 2015-07-31 | 2019-07-03 | 古河ユニック株式会社 | REMOTE CONTROLLER AND WORKING UNIT MOUNTED CRANE PROVIDED WITH THE SAME |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034036C (en) * | 1993-01-13 | 1997-02-12 | 美格电子工业株式会社 | Push switch |
-
1996
- 1996-03-04 JP JP4628396A patent/JPH09245573A/en active Pending
-
1997
- 1997-02-28 MY MYPI9700817 patent/MY118436A/en unknown
- 1997-03-04 CN CN97100814A patent/CN1053520C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446145C (en) * | 2005-05-16 | 2008-12-24 | 松下电器产业株式会社 | Switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1053520C (en) | 2000-06-14 |
| MY118436A (en) | 2004-11-30 |
| JPH09245573A (en) | 1997-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20000614 Termination date: 20100304 |