CN1269157C - Button switches - Google Patents
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- CN1269157C CN1269157C CN 200410028209 CN200410028209A CN1269157C CN 1269157 C CN1269157 C CN 1269157C CN 200410028209 CN200410028209 CN 200410028209 CN 200410028209 A CN200410028209 A CN 200410028209A CN 1269157 C CN1269157 C CN 1269157C
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Abstract
The present invention provides a push-button switch with high contact reliability, which provides a desired operation feeling, and prevents the invasion of dusts and the like to stabilize the contact state between a movable contact and a fixed contact when a rubber spring is pushed to perform the verse operation. The push-button switch is characterized in having: a housing having a housing part, fixed contacts fixed in the housing part, a movable contact arranged opposed to the fixed contacts, and a rubber spring having a lower end peripheral edge part in the holding part bendable skirt part provided in a space formed together with an upper end pressing surface part, and contacts/disconnects the movable contact to/from the fixed contact due to the bending of this skirt part. The lower end peripheral edge part of the rubber spring and opposed faces of a housing wall part of the housing 1 having this lower end peripheral edge part held therein are formed of inclined faces or arc faces each opening from the under face side toward the top face side.
Description
Technical field
The present invention relates to the structure of the push-button switch that uses with switch as the operation of various electronic equipments, relate in particular to and utilize the structure of rubber spring as the push-button switch of turnover spring.
Background technology
The structure of existing push-button switch, be known that: fixed contact is being carried out in the resettlement section of housing mounted, arrange with the opposed travelling contact of fixed contact and this travelling contact to be pressed into the rubber spring of fixed contact side, utilize the ejection force of this rubber spring to make the stem stem of operation usefulness reset (for example referring to patent documentation 1).
Below with reference to the accompanying drawings, describe the structure of existing push-button switch in detail.
Figure 11 is the vertical view of the existing push-button switch of expression.Figure 12 is the cutaway view of the existing push-button switch of expression.
Among the figure, shell 31 utilizes insulating material such as synthetic resin and makes the case shape that is a top side opening.Side being provided with has the resettlement section 31a that accommodates the 31b of wall portion below in this shell 31, at the inner bottom part of this resettlement section 31a, buried underground electric conducting materials such as metallic plate are carried out bending and a pair of fixed contact 32,33 that forms.One distolateral inner bottom surface from shell 31 of this a pair of fixed contact 32,33 exposes, and forms the 32a of contact portion, 33a respectively, and another distolateral outside that is drawn out to shell 31 forms portion of terminal 32b, 33b respectively.
Travelling contact 34 usefulness rubber-like conductivity metal sheets are made, and its structure comprises: circular 34a of edge strip portion and the incorporate contact chip 34b that is sticked up in the central.Above-mentioned travelling contact 34 is configured to, and the above-mentioned edge strip 34a of portion is mounted to the state that the 33a of contact portion with said fixing contact 33 is conducted, the 32a of contact portion of above-mentioned contact chip 34b and said fixing terminal 32 with the state that is separated by opposed setting.
And, push above-mentioned that side forms action teat 35d below the facial 35b, the front end of this action teat 35d is pushed the contact chip 34b of above-mentioned travelling contact 34, and the 32a of contact portion of itself and said fixing terminal 32 is conducted.
Insulating material manufacturings such as stem stem 36 usefulness synthetic resin, it is inserted in the peristome of above-mentioned shell 31, and the teat 36a that pushes of this stem stem 36 snaps on the facial 35b of pushing of above-mentioned rubber spring 35, and above-mentioned rubber spring 35 is pushed downwards.After stem stem 36 was pressed, the skirt section 35a of above-mentioned rubber spring 35 carried out bending, returned on the initial position by its ejection force when resetting.
Yet, in the structure of above-mentioned existing push-button switch, between the 35c of outer peripheral edges portion that accommodates 31b of wall portion and above-mentioned rubber spring 35 of the above-mentioned rubber spring 35 in being used to accommodate the resettlement section 31a that is arranged on above-mentioned shell 31, easy assembleability when considering assembling rubber spring 35, make the internal diameter size of accommodating the 31b of wall portion the 35c of outer peripheral edges portion, formed clearance G greater than rubber spring 35.
Therefore, the problem of existence is: accommodate the offset of the rubber spring 35 in the 31b of wall portion, may cause rubber spring 35 end capacity compressions, influence operation sense (operation Off ィ one リ Application グ), perhaps dust invades contact inside from clearance G, causes loose contact.And, owing to add that the 35c of outer peripheral edges portion of rubber spring 35 when pushing expand into and the amount of movement of accommodating till the 31b of wall portion overlaps mutually in clearance G, so, the peak that is used as power (point that rubber spring 35c bending is overturn) is (the conduction position side of contact) skew backward, so, stroke after the upset shortens, and can not get good operation sense.
Summary of the invention
So, the objective of the invention is to address the above problem, a kind of like this push-button switch is provided, promptly when pushing rubber spring and carry out rotary movement, can obtain desired operation feeling, prevent the intrusion of dust etc. simultaneously, make the contact condition of travelling contact and fixed contact stable, the contact reliability height.
In order to address the above problem, the present invention, by the following technical solutions:
The 1st scheme is characterized in that having:
Shell, it has the resettlement section;
Fixed contact, it is fixedly installed in the above-mentioned resettlement section;
Travelling contact, itself and this fixed contact is provided with in opposite directions; And
Rubber spring, its peripheral edge of bottom portion is maintained in the above-mentioned resettlement section, and the upper end push have between the face can be crooked the skirt section, utilize the bending in this skirt section that above-mentioned travelling contact is contacted with the said fixing contact and separate;
Respectively with the opposed faces of accommodating wall portion of the above-mentioned shell that expands peripheral edge of bottom portion that the inclined plane of opening or arc surface form above-mentioned rubber spring from following side direction upper face side and this peripheral edge of bottom portion is kept.
And the 2nd scheme is characterized in that: the height of accommodating wall portion of above-mentioned shell, to compare with the height of the upper face side of the peripheral edge of bottom portion of above-mentioned rubber spring, and the two is identical, perhaps is higher than the latter.
Moreover the 3rd scheme is characterized in that: compare with the expansion angle of release degree of the wall portion of accommodating of above-mentioned shell, the expansion angle of release degree of the peripheral edge of bottom portion of above-mentioned rubber spring is bigger; Compare with the difference in size of the peripheral edge of bottom portion upper face side separately of the wall portion of accommodating of above-mentioned shell and above-mentioned rubber spring, below the difference in size of side form significantly.
And, the 4th scheme, it is characterized in that: prevent the gap formation portion that they combine closely thereby the opposed faces that is provided with the wall portion of accommodating of the above-mentioned shell that keeps in the peripheral edge of bottom portion of above-mentioned rubber spring with to this peripheral edge of bottom portion forms the gap, and formed the air flow circuit that is connected with the formed space of the inner face side of above-mentioned rubber spring.
And, the 5th scheme, it is characterized in that, have in the resettlement section that is maintained at above-mentioned shell and the energy lifting moving, simultaneously the stem stem that face is pushed is pushed in the upper end of above-mentioned rubber spring, on the inner wall part of above-mentioned resettlement section, formed the guiding groove section that the lifting of above-mentioned stem stem is led, formed above-mentioned air flow circuit by this guiding groove section.
Moreover the 6th scheme is characterized in that: above-mentioned guiding groove section is extended the bottom surface side that is set to above-mentioned shell, and the contact face that the inner bottom part of above-mentioned guiding groove section is formed on than said fixing contact hangs down on the position of a step.
And, the 7th scheme, it is characterized in that: above-mentioned travelling contact is made by the rubber-like metallic plate, it is clamped in the following side of peripheral edge of bottom portion of above-mentioned rubber spring and the upper face side of said fixing contact, on the faying surface of above-mentioned travelling contact and said fixing contact, form jut, utilize this jut that the formed space of inner face side of above-mentioned rubber spring is connected with above-mentioned guiding groove section.
Description of drawings
Fig. 1 is the vertical view of the push-button switch of expression the present invention the 1st embodiment.
Fig. 2 is the cutaway view at the 2-2 line place of Fig. 1 of the present invention.
Fig. 3 is the cutaway view at the 3-3 line place of Fig. 1 of the present invention.
Fig. 4 is the vertical view of the shell of expression one embodiment of the invention.
Fig. 5 is the vertical view of the rubber spring of expression one embodiment of the invention.
Fig. 6 is the cutaway view of the rubber spring of expression one embodiment of the invention.
Fig. 7 is the vertical view of the travelling contact of expression one embodiment of the invention.
Fig. 8 is the cutaway view of the travelling contact of expression one embodiment of the invention.
Fig. 9 is the key diagram of the characteristic that is used as power of expression rubber spring of the present invention.
Figure 10 is the cutaway view of the push-button switch of expression the present invention the 2nd embodiment.
Figure 11 is the vertical view of the existing push-button switch of expression.
Figure 12 is the cutaway view of the existing push-button switch of expression.
Embodiment
Below in Fig. 1～Fig. 9 the expression push-button switch of the present invention an embodiment.Fig. 1 is the vertical view of push-button switch, Fig. 2 is the cutaway view along the 2-2 line of Fig. 1, Fig. 3 is the cutaway view along the 3-3 line of Fig. 1, Fig. 4 is the vertical view of shell, Fig. 5 is the vertical view of rubber spring, Fig. 6 is the cutaway view of rubber spring, and Fig. 7 is the vertical view of travelling contact, and Fig. 8 is the cutaway view of travelling contact.Fig. 9 is the key diagram of the characteristic that is used as power of expression rubber spring.
Insulating material such as shell 1 usefulness synthetic resin are made the case shape of the rectangle of top opening.Formed resettlement section 1a in the opening of this shell 1, be provided with a pair of fixed contact 2,3 that is formed by conductive metal materials such as brass on the inner bottom part of this resettlement section 1a, manufacturing process is inlayed in this fixed contact utilization and above-mentioned shell 1 is shaped as a whole.
And, on the inner wall part of the resettlement section of above-mentioned shell 1 1a, being provided with guiding groove section 1b, the guiding teat 6c of the stem stem 6 that this guiding groove section 1b states the up and down, four angles on diagonal fastens.By this guiding groove section 1b is set, when following stem stem 6 lifting moving, can in above-mentioned shell 1, leads, and carry out position limit this stem stem 6.
Moreover, below above-mentioned resettlement section 1a, formed on the inner wall part of side from following side direction upper face side and expanded the 1c of the wall portion of accommodating that the inclined plane constituted that opens.Accommodate the 5c of peripheral edge of bottom portion that the 1c of wall portion is keeping following rubber spring 5 mutually opposed to each other at this.And, the part of an above-mentioned part of accommodating the 1c of wall portion and above-mentioned guiding groove section 1b forms the state that is connected to each other, moreover, with respect to above-mentioned resettlement section 1a by above-mentioned inner bottom surface of accommodating the inboard that the 1c of wall portion surrounded, the face of the inner bottom part of above-mentioned guiding groove section 1b is formed on the position of a low step.
And the part of the 1c of the wall portion of accommodating of above-mentioned shell 1 and the part of above-mentioned guiding groove section 1b are formed with being connected to each other, and this coupling part has constituted the air flow circuit that is connected with the spatial portion of the inner face side of following rubber spring 5.
Like this, by being connected with the part of the 1c of the wall portion of accommodating of above-mentioned shell 1, form above-mentioned guiding groove section 1b, so formed the air flow circuit that is connected with the inner face side of following rubber spring 5, so, when pushing rubber spring 5 and carry out rotary movement, even the 5c of peripheral edge of bottom portion that accommodates 1c of wall portion and rubber spring 5 of above-mentioned shell 1 is being held with combining closely, air in the rubber spring 5 are flowed out to the outside, therefore, rubber spring 5 is overturn effectively and reset.
And,,, simplify the structure so do not need to reset air flow circuit because above-mentioned guiding groove section 1b can be also used as air flow circuit.
A pair of fixed contact 2,3 is embedded in the inner bottom part of above-mentioned shell 1, and this buries a plurality of bends of formation midway of part underground, and setting is extended in the distolateral outside to above-mentioned shell 1 of one, forms portion of terminal 2a, 3a.And another is distolateral be exposed to above-mentioned shell 1 above-mentioned resettlement section 1a by on the above-mentioned inner bottom surface of accommodating the inboard that the 1c of wall portion surrounds, keep certain intervals between having formed mutually and be arranged to a 2b of docking point portion, 3b configuration state.
In the case, above-mentioned guiding groove section 1b extends to form the bottom surface side of above-mentioned shell 1, the face that the inner bottom part of this guiding groove section 1b is formed on than the 2b of contact portion, the 3b of said fixing contact 2,3 hangs down on the position of a step, so, even dust invades in the above-mentioned resettlement section 1a, also can make the dust of intrusion accumulate in the inner bottom part of above-mentioned guiding groove section 1b, invade contact portion, can improve the reliability of contact so can prevent dust.
Travelling contact 4 is formed by rubber-like phosphor bronze sheet or corrosion resistant plate etc., and profile is rounded haply, has formed the 4a of edge strip portion of ring-type in its outside.In the inboard of the 4a of this edge strip portion, be provided with circular-arc hole 4b, on the central portion of this hole 4b, formed contact chip 4d, the end of this contact chip 4d is connected with the above-mentioned edge strip 4a of portion by connecting portion 4c, and other end integral body is upturned.This contact chip 4d is arranged to can swing on the above-mentioned edge strip 4a of portion by above-mentioned connecting portion 4c, and it is bent by certain angle, so that its front is inclined upwardly slightly.
And, on above-mentioned contact chip 4d, with 5 opposed of following rubber springs, promptly cut off and bent on the face of skewed upside, formed the teat 4e of the overlap joint usefulness that overlaps mutually with this rubber spring 5.By being set, this teat 4e make the substantial middle portion of contact chip 4d bear pressure, so can make contact stabilization.And, on the face of downside, formed a plurality of teat 4f that overlap mutually with the 2b of contact portion of said fixing contact 2, can obtain stable contact.
Moreover side has formed the jut 4g that comes out at said fixing contact 3 pleurapophysis below the above-mentioned edge strip 4a of portion.By this jut 4g is set, above-mentioned travelling contact 4 is clamped between the following of following rubber spring 5 and the said fixing contact 3, and by mounting on fixed contact 3 time, 3b of contact portion and above-mentioned jut 4g connect, do not combine closely around it, guarantee gapped H (with reference to Fig. 3).And so, above-mentioned travelling contact 4 forms and always contacts with said fixing contact 3, and can contact with fixed contact 2 and separate, and constitutes the contact of switch.
Like this, by above-mentioned jut 4g is set on above-mentioned travelling contact 4, the spatial portion of inner face side of rubber spring 5 and the guiding groove section 1b of above-mentioned shell 1 are connected, so, air in the rubber spring 5 is imported in above-mentioned guiding groove section 1b from the above-mentioned travelling contact 4 that formed by above-mentioned jut 4g and the gap H of fixed contact 3 reliably, so rubber spring 5 is overturn effectively and resets.
Moreover in the present embodiment, above-mentioned jut 4g is formed on the following side of the 4a of edge strip portion of above-mentioned travelling contact 4, but also can form jut at the upper face side of said fixing contact 3, to replace this jut 4g.And, the concave part that is connected with the spatial portion of the inner face side of above-mentioned rubber spring 5 also can be set, to replace jut on the lower surface of above-mentioned rubber spring 5.
On the above-mentioned edge strip 4a of portion of above-mentioned travelling contact 4, be provided with laterally outstanding a pair of projection piece 4h, when above-mentioned travelling contact 4 is inserted in the resettlement section 1a of shell 1, fasten, carry out position limit by itself and above-mentioned guiding groove section 1b.
Rubber spring 5 forms by having flexible elastomer or silicon rubber etc., its profile is the dome-shaped of lower aperture, and it comprises: following stem stem move and be bent when resetting and produce ejection force skirt section 5a, be formed on the 5c of outer peripheral edges portion that pushes facial 5b and be formed on the bottom of this skirt section 5a of 5a upper end, this skirt section.Side below this pushes facial 5b forms action teat 5d, and the front end of this action teat 5d snaps on the set above-mentioned teat 4e of the upper face side of contact chip 4d of above-mentioned travelling contact 4.
And the outer peripheral face of the above-mentioned outer peripheral edges 5c of portion forms from following side direction upper face side and expands the inclined plane of opening.And when above-mentioned rubber spring 5 was inserted in the resettlement section 1a of above-mentioned shell 1, the above-mentioned outer peripheral edges 5c of portion was arranged to and the above-mentioned opposed state in inclined plane of accommodating the 1c of wall portion.
Like this, with respect to the direction of assembling in above-mentioned shell 1, the front of the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5 forms the thinner shape in termination.So, can improve the easy assembling when inserting, can reduce behind the plug-in mounting the gap of accommodating the 1c of wall portion simultaneously with above-mentioned shell 1.
And in the case, the height dimension of accommodating the 1c of wall portion of above-mentioned shell 1 is compared with the height dimension of the upper face side of the 5c of outer peripheral edges portion of above-mentioned rubber spring 5, and both are measure-alike, and perhaps the former size is a bit larger tham the latter's size.So, when pushing above-mentioned rubber spring 5 and make it carry out rotary movement, the upper face side of the 5c of peripheral edge of bottom portion of the above-mentioned rubber spring 5 that expands in the compression back can to accommodate the 1c of wall portion not outstanding from above-mentioned, so, can prevent when pushing that above-mentioned rubber spring 5 from floating from the above-mentioned 1c of wall portion that accommodates.
And, the correlation on the outer peripheral edges portion 5c inclined plane opposite one another of accommodating 1c of wall portion and above-mentioned rubber spring 5 of above-mentioned shell 1 is, the expanded-angle of the 5c of outer peripheral edges portion of above-mentioned rubber spring 5 is greater than the expanded-angle of accommodating the 1c of wall portion of above-mentioned shell 1, and the difference in size of the following side of the 5c of outer peripheral edges portion that accommodates 1c of wall portion and above-mentioned rubber spring 5 of above-mentioned shell 1 is greater than the difference in size of a top side.
So, above-mentioned rubber spring 5 be inserted into above-mentioned when accommodating in the 1c of wall portion above-mentioned rubber spring 5 assemble easily, can be placed on the above-mentioned appropriate location of accommodating in the 1c of wall portion, so can reduce the error of the assembling position (height dimension) of above-mentioned rubber spring 5.And a side below above-mentioned rubber spring 5 can be pressed into said fixing contact 3 one sides to the 4a of edge strip portion of above-mentioned travelling contact 4 securely.
And in the present embodiment, above-mentioned travelling contact 4 is made by the rubber-like metallic plate, and it is clamped between said fixing contact 3 and the above-mentioned rubber spring 5.But also can be on the lower surface of the action teat 5d of above-mentioned rubber spring 5 integrally formed known carbon ink contact etc.In the case, do not need above-mentioned travelling contact 4, can reduce number of spare parts.
Stem stem 6 forms circular by moulding materials such as synthetic resin, is provided with the plane press section 6a that waits operation with finger above it.Formed on the side below opposed with this press section 6a snap into above the facial 5b of pushing of above-mentioned rubber spring 5, make above-mentioned rubber spring 5 to above-mentioned travelling contact 4 lateral bending songs, to the following side-prominent teat 6b that pushes.
And, below the side surface part of above-mentioned stem stem 6, on the side, formed to 4 outstanding guiding teat 6c of cross direction.And, when above-mentioned stem stem 6 is inserted on the peristome of resettlement section 1a of above-mentioned shell 1, formed above-mentioned guiding groove section 1b fastens on the inner wall part of above-mentioned guiding teat 6c and above-mentioned resettlement section 1a, by above-mentioned shell 1 its position is limited, and is mounted to the state of energy lifting moving.
The below action of the push-button switch of explanation said structure.
At first, when pushing the press section 6a of above-mentioned stem stem 6 with finger etc., the above-mentioned teat 6b that pushes pushes the facial 5b of pushing of above-mentioned rubber spring 5, makes skirt section 5a deflection, and action teat 5d is moved downwards.
And shown in the solid line of Fig. 9, when moving by predetermined stroke, when making the load that is used as power reach peak, above-mentioned skirt section 5a carries out rotary movement, and above-mentioned action teat 5d moves downwards voluntarily.And above-mentioned action teat 5d snaps on the teat 4e of upper face side of contact chip 4d of above-mentioned travelling contact 4, so the teat 4f of the following side of the contact chip 4d of above-mentioned travelling contact 4 and said fixing contact 2 are conducted, contact forms conducting state.
If state thus, to remove the pushing of above-mentioned stem stem 6, then above-mentioned stem stem 6 utilizes the ejection force that skirt section 5a had of above-mentioned rubber spring 5 and upward by the application of force, turns back on the initial position.At this moment, the contact chip 4d of above-mentioned travelling contact 4 also utilizes the elasticity of itself and turns back to the top, and contact becomes off-state.
In the case, the opposed faces of accommodating the 1c of wall portion of the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5 and above-mentioned shell 1 that the 5c of this peripheral edge of bottom portion is supported, form respectively from following side direction upper face side and expand the inclined plane of opening, with respect to the direction of packing in above-mentioned shell 1, the front of the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5 forms the thinner shape in termination.
Therefore, during assembling, can reduce the gap of accommodating the 1c of wall portion of the 5c of peripheral edge of bottom portion and the above-mentioned shell 1 of above-mentioned rubber spring 5, when pushing above-mentioned rubber spring 5 and carrying out rotary movement, the 5c of outer peripheral edges portion that can eliminate above-mentioned rubber spring 5 expand into and gap (gap value) till the 1c of the wall portion of accommodating of above-mentioned shell 1 overlaps mutually.So, shown in the solid line of Fig. 9, the peak P point that is used as power (point of skirt section 5a deflection upset), can be set on the appropriate location, it is far away to leave contact conduction position R point, and the stroke before conducting after the upset is increased, so, the excellent operation sense in the time of obtaining operation.
Between the 1c of the wall portion of accommodating of the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5 and above-mentioned shell 1 certain interval G is arranged when at this moment, packing into.In the case, because the 5c of peripheral edge of bottom portion that adds above-mentioned rubber spring 5 when pushing in clearance G expand into and the above-mentioned amount of movement of the 1c of wall portion before overlapping mutually of accommodating, so, shown in the dotted line of Fig. 9, the peak Q point that is used as power (point of skirt section 5a deflection upset) (contact conduction position R side) skew rearwards, so the stroke before conducting after the upset shortens the good operation sense in the time of can not obtaining operating.
Figure 10 is the cutaway view of the push-button switch structure of expression the present invention the 2nd embodiment.In the case, the difference with the 1st embodiment is that some is different for the formation of the 1c of the wall portion of accommodating of above-mentioned shell 1 and the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5.
Formation as the push-button switch of the present invention the 2nd embodiment, the opposed faces of accommodating the 1c of wall portion of the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5 and above-mentioned shell 1 that the 5c of this peripheral edge of bottom portion is supported forms respectively from following side direction upper face side and expands the arc surface of opening.
In the case, it also is the opposed faces of accommodating the 1c of wall portion of the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5 and shell 1 that the 5c of this peripheral edge of bottom portion is supported, form the arc surface that extends from following side direction upper face side respectively, with respect to the direction of packing in above-mentioned shell 1, the front of the 5c of peripheral edge of bottom portion of above-mentioned rubber spring 5 forms the thinner shape in termination.
Therefore, the same with above-mentioned the 1st embodiment, during assembling, can reduce the gap of accommodating the 1c of wall portion of the 5c of peripheral edge of bottom portion and the above-mentioned shell 1 of above-mentioned rubber spring 5, when pushing above-mentioned rubber spring 5 and carrying out rotary movement, the gap (gap value) till the 1c of the wall portion of accommodating that the 5c of outer peripheral edges portion that can eliminate above-mentioned rubber spring 5 expand into above-mentioned shell 1 overlaps mutually.Shown in, as shown in Figure 9, the peak P point that is used as power (skirt section 5a deflection upset point) can be set on the appropriate location, and it is far away to leave the contact conduction position, and the stroke till conducting after the upset is increased, so, the excellent operation sense in the time of obtaining to operate.
And, in an embodiment of the present invention, utilize the gathering sill 1d of above-mentioned shell 1 to form the air flow circuit that the air of the spatial portion of the inner face side of above-mentioned rubber spring 5 is used to outside drain, but also can on the part of above-mentioned rubber spring 5, form the hole and the groove of circulation usefulness.
The effect of invention
As described above, press button of the present invention has: shell, it has accommodates Section; Fixed contact, it is fixedly installed in the above-mentioned resettlement section; Travelling contact, it is set up With the opposed position of this fixed contact on; And rubber spring, its peripheral edge of bottom section quilt Remain in the above-mentioned resettlement section, press in itself and upper end that have between the face can crooked skirt Section, utilize the bending in this skirt section that above-mentioned travelling contact is contacted with above-mentioned fixed contact and Separate; The peripheral edge of bottom section of rubber spring and this peripheral edge of bottom section kept The opposed faces of accommodating wall section of shell is formed respectively from inclining that following side direction upper face side expands Inclined-plane or arc surface. So, with respect to the direction of in shell, assembling, above-mentioned rubber spring The front of peripheral edge of bottom section forms the thinner shape in termination. So, can improve easy assembling, Can reduce simultaneously the gap of accommodating wall section with above-mentioned shell. Therefore, press above-mentioned rubber spring When carrying out rotary movement, the peak that is used as power (point of rubber spring deflection upset), energy Be set to that to leave the contact conduction position far away, the stroke till conducting after the upset increased, So, can obtain good operation sense.
And the height dimension of accommodating wall section of shell is with the peripheral edge of bottom section of rubber spring The height dimension of upper face side compare, both are measure-alike, after perhaps the former size is a bit larger tham Person's size. So, when pressing rubber spring and make it carry out rotary movement, expand after the compression The upper face side of peripheral edge of bottom section of above-mentioned rubber spring, can be outstanding from the above-mentioned wall section of accommodating Come, so, can prevent that rubber spring from upwards floating.
In addition, compare the lower end periphery of rubber spring with the expanded-angle of accommodating wall section of shell The expanded-angle of edge is bigger; The lower end of accommodating wall section and above-mentioned rubber spring with above-mentioned shell The difference in size of periphery edge upper face side is separately compared, below the difference in size of side bigger. By this Sample forms, and rubber spring is assembled easily, be convenient to be placed on the appropriate location of accommodating in the wall section, So can reduce the error of the assembling position (height dimension) of above-mentioned rubber spring, can be above-mentioned The edge strip section of travelling contact is pressed into above-mentioned fixed contact one side securely.
And, make the peripheral edge of bottom section of rubber spring and this peripheral edge of bottom section protected The opposed faces of accommodating wall section of the shell of holding is connected, and formed with above-mentioned rubber spring in The air flow circuit that the face side is connected. So, when pressing rubber spring and carry out rotary movement, namely The peripheral edge of bottom section of accommodating wall section and rubber spring of shell is combined closely, also can make rubber Air venting in the spring is to outside, therefore rubber spring overturn effectively and answers The position.
Moreover, have in the shell of the being maintained at resettlement section and can lifting moving, simultaneously to above-mentioned rubber The stem stem that face is pressed is pressed in the upper end of glue spring, and the inner wall part in the resettlement section has formed Guiding groove section to the lifting of stem stem is led has formed air flow circuit by this guiding groove section. So can be also used as air flow circuit to guiding groove section, therefore, do not need to reset air flow circuit, Can simplified structure.
And guiding groove section extends to the shell bottom surface side, the inner bottom part shape of above-mentioned guiding groove section One-tenth hangs down on the position of a step at the contact face than fixed contact. So, the dust quilt of intrusion Accumulate in the inner bottom part of this guiding groove section, therefore, can prevent that dust from invading contact section, can carry The reliability of high contact.
Moreover travelling contact is made by having flexible metallic plate, and it is clamped in rubber spring The following side of peripheral edge of bottom section and the upper face side of fixed contact, at travelling contact with fixedly connect Form jut on the faying surface of point, utilize this jut to make inner face side and the guiding of rubber spring Slot part is communicated with. So the air in the rubber spring can be successfully from being formed by jut Travelling contact and the gap of fixed contact in be directed in the guiding groove section, therefore can make rubber Spring overturns effectively and resets.
Claims (7)
1, a kind of push-button switch is characterized in that having:
Shell, it has the resettlement section;
Fixed contact, it is fixedly installed in the above-mentioned resettlement section;
Travelling contact, itself and this fixed contact is provided with in opposite directions; And
Rubber spring, its peripheral edge of bottom portion is maintained in the above-mentioned resettlement section, and the upper end push have between the face can be crooked the skirt section, utilize the bending in this skirt section that above-mentioned travelling contact is contacted with the said fixing contact and separate;
Respectively with the opposed faces of accommodating wall portion of the above-mentioned shell that expands peripheral edge of bottom portion that the inclined plane of opening or arc surface form above-mentioned rubber spring from following side direction upper face side and this peripheral edge of bottom portion is kept.
2, push-button switch as claimed in claim 1 is characterized in that: the height of accommodating wall portion of above-mentioned shell, to compare with the height of the upper face side of the peripheral edge of bottom portion of above-mentioned rubber spring, and the two is identical, perhaps is higher than the latter.
3, push-button switch as claimed in claim 1 or 2 is characterized in that: compare with the expansion angle of release degree of the wall portion of accommodating of above-mentioned shell, the expansion angle of release degree of the peripheral edge of bottom portion of above-mentioned rubber spring is bigger; Compare with the difference in size of the peripheral edge of bottom portion upper face side separately of the wall portion of accommodating of above-mentioned shell and above-mentioned rubber spring, below the difference in size of side form significantly.
4, push-button switch as claimed in claim 1, it is characterized in that: prevent the gap formation portion that they combine closely thereby the opposed faces that is provided with the wall portion of accommodating of the above-mentioned shell that keeps in the peripheral edge of bottom portion of above-mentioned rubber spring with to this peripheral edge of bottom portion forms the gap, and formed the air flow circuit that is connected with the formed space of the inner face side of above-mentioned rubber spring.
5, push-button switch as claimed in claim 4, it is characterized in that, have in the resettlement section that is maintained at above-mentioned shell and the energy lifting moving, simultaneously the stem stem that face is pushed is pushed in the upper end of above-mentioned rubber spring, on the inner wall part of above-mentioned resettlement section, formed the guiding groove section that the lifting of above-mentioned stem stem is led, formed above-mentioned air flow circuit by this guiding groove section.
6, push-button switch as claimed in claim 5 is characterized in that: above-mentioned guiding groove section is extended the bottom surface side that is set to above-mentioned shell, and the contact face that the inner bottom part of above-mentioned guiding groove section is formed on than said fixing contact hangs down on the position of a step.
7, push-button switch as claimed in claim 5, it is characterized in that: above-mentioned travelling contact is made by the rubber-like metallic plate, it is clamped in the following side of peripheral edge of bottom portion of above-mentioned rubber spring and the upper face side of said fixing contact, on the faying surface of above-mentioned travelling contact and said fixing contact, form jut, utilize this jut that the formed space of inner face side of above-mentioned rubber spring is connected with above-mentioned guiding groove section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003064257A JP2004273331A (en) | 2003-03-11 | 2003-03-11 | Push-button switch |
| JP2003064257 | 2003-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1530984A CN1530984A (en) | 2004-09-22 |
| CN1269157C true CN1269157C (en) | 2006-08-09 |
Family
ID=33125587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410028209 Expired - Fee Related CN1269157C (en) | 2003-03-11 | 2004-03-08 | Button switches |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004273331A (en) |
| CN (1) | CN1269157C (en) |
| TW (1) | TWI233133B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5284883B2 (en) * | 2009-06-16 | 2013-09-11 | ミック電子工業株式会社 | Push-button switch |
| CN102142332A (en) * | 2010-12-29 | 2011-08-03 | 东莞市凯华电子有限公司 | Silent switch |
| JP6045072B2 (en) * | 2013-07-04 | 2016-12-14 | アルプス電気株式会社 | Push switch |
| JP2016134658A (en) * | 2015-01-15 | 2016-07-25 | パナソニックＩｐマネジメント株式会社 | Push button switch device, electric wave transmitter and lighting control system |
| CN108378948A (en) * | 2018-05-03 | 2018-08-10 | 刘书润 | Electric toothbrush |
| US10864861B1 (en) * | 2019-12-10 | 2020-12-15 | Continental Automotive Systems, Inc. | Customizable over-mount structure for vehicle start/stop button |
-
2003
- 2003-03-11 JP JP2003064257A patent/JP2004273331A/en not_active Withdrawn
-
2004
- 2004-02-26 TW TW93104928A patent/TWI233133B/en not_active IP Right Cessation
- 2004-03-08 CN CN 200410028209 patent/CN1269157C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW200428438A (en) | 2004-12-16 |
| CN1530984A (en) | 2004-09-22 |
| JP2004273331A (en) | 2004-09-30 |
| TWI233133B (en) | 2005-05-21 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060809 Termination date: 20100308 |