CN105097344B

CN105097344B - Rotary coder

Info

Publication number: CN105097344B
Application number: CN201410482189.2A
Authority: CN
Inventors: 野村吉昭
Original assignee: Murata Manufacturing Co Ltd
Current assignee: Murata Manufacturing Co Ltd
Priority date: 2014-05-22
Filing date: 2014-09-19
Publication date: 2017-07-25
Anticipated expiration: 2034-09-19
Also published as: WO2015177945A1; CN105097344A; CN204257472U

Abstract

The present invention, which is provided, a kind of compared with the past can realize the rotary coder of further miniaturization and cost degradation.Rotary coder (10) is included：Base component (12)；First fixed contact part (14), it is configured at base component；Multiple second fixed contact parts (16,18), it is configured at spaced intervals with the first fixed contact part；Rotor part (20), it is rotatably supported on base component；Rotating contact part (22), it has jog in a rotational direction, and rotated together with rotor part, first fixed contact part all the time with rotating contact component contact, and the second fixed contact part is separated with the jog engaging of rotating contact part by using the rotation of rotor part, so that rotating contact part and the contact of the second fixed contact part, and the electrical connection of on-off rotating contact part and the second fixed contact part, while producing clicker sense of touch.

Description

Rotary coder

Technical field

The present invention relates to a kind of rotary coder, more particularly to a kind of computer peripheral such as in mouse, Use, and produced for being informed in the amount changed during rotation process (rotation amount/rotation in mobile phone, electric apparatus mounted on vehicle etc. Angle) and change direction (direction of rotation) signal rotary coder.

Background technology

As an example of the prior art of the background as the present invention, such as with following rotary coder (for example, referring to patent document 1), it is characterised in that be made up of insulating materials and can rotate it is cylindric, cylindric, Or the rotary body of circular cone shape；It is arranged at the code pattern of the outer surface of the rotary body；What is contacted with the code pattern multiple connects Contact, code pattern is provided with the periphery of rotary body, and is formed with the bumps of ratchet in an end face of rotary body Portion, makes engaging part engage with the jog and separates to constitute ratchet mechanism.In the prior art, rotary body can be reduced Length on 8 axial rotary, so as to obtain small-sized rotary coder.

However, in the prior art, outside the structure for realizing electric contact, being formed in an end face of rotary body The jog of ratchet, makes engaging part engage with the jog and separates and set ratchet mechanism, therefore number of components increase, right There is the limit in the further miniaturization of rotary coder and cost degradation.

Therefore, in order to eliminate this problem points, it is proposed that realized using identical moving contact blade for ratchet mechanism and The structure of electric contact.

That is, as the other examples of the prior art as background of the invention, for example, it is proposed that one kind is using following knot The rotary switch (for example, referring to patent document 2) of structure, it possesses the rotor being arranged in housing, can rotated together with rotor Moving contact blade, be configured with the pedestal of fixed touch plate corresponding with moving contact blade, wherein, in moving contact blade formation convex portion, pass through The convex portion is with being arranged at the male and fomale(M＆F) Elastic Contact of shell inner surface and producing click effect.In the prior art, by making shape Into the convex portion in moving contact blade and the male and fomale(M＆F) Elastic Contact for being arranged at housing, so as to be produced in operation tactile with moving contact blade The click effect that the switching action of point is interlocked.

Citation

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2001-167665 publications (Fig. 1, Fig. 2)

Patent document 2：Japanese Unexamined Patent Publication 2010-67421 publications (Fig. 6)

The content of the invention

The invention problem to be solved

However, for example shown in patent document 2 it is this in the prior art, although with being cut with the contact of moving contact blade Move and make the ratchet mechanism that interlocks, but in order to produce click effect, it is necessary in addition in the inner surface setting concave and convex surface of housing, with Patent document 1 is same before, there is the limit for further miniaturization and cost degradation.

Thus, it is a primary object of the present invention to provide it is a kind of it is compared with the past can realize further miniaturization and The rotary coder of cost degradation.

Means for solving the problems

The present invention involved by technical scheme 1 is a kind of rotary coder, it is characterised in that including：Base component, its Formed by insulating materials；First fixed contact part, it is formed by conductive material, and is configured at an interarea of base component； Multiple second fixed contact parts, it is formed by conductive material, and is configured at base at spaced intervals with the first fixed contact part One interarea of base member；Rotor part, it is formed by insulating materials, and the side on axial direction is rotatably supported on base One interarea of base member；Rotating contact part, it is formed by conductive material, is configured at the pars intermedia in the axial direction of rotor part And rotated together with rotor part, and in a rotational direction have jog, wherein, the first fixed contact part all the time with rotation Contact component is contacted, and makes the jog card of the second fixed contact part and rotating contact part by using the rotation of rotor part Separation is closed, so that contact/noncontact of rotating contact part and the second fixed contact part is repeated, on-off rotation connects The electrical connection of contact portion part and the second fixed contact part, while producing clicker sense of touch.

In the present invention involved by technical scheme 1, by with said structure, using make the second fixed contact part with One of the jog engaging separation of rotating contact part constitutes the rotation realized and contacted all the time with the first fixed contact part simultaneously Turn the switching mechanism of the on-off of the electrical connection of contact component and the second fixed contact part and produce the spine of clicker sense of touch Take turns mechanism.Therefore, in the present invention, for example compared with the first technology involved by patent document 1 and patent document 2, without Ratchet mechanism is set beyond the structure for realizing electric contact, thus it is compared with the past, further miniaturization can be realized And cost degradation.

The present invention involved by technical scheme 2 is a kind of rotary coder, and it is subordinated to the hair involved by technical scheme 1 Bright, the rotary coder is characterised by, the pars intermedia of the second fixed contact part in its longitudinal direction is included can Engage the convex shaped part separated with jog, rotating contact part is included from the pivot side of rotor portions with many of radiated entends Individual rotating contact piece, makes convex shaped part and rotating contact piece Elastic Contact.

In the present invention involved by technical scheme 2, by with said structure, when rotating rotor part, rotation Multiple rotating contact pieces rotation of contact component, so that the bumps of the convex shaped part of the second fixed contact part and rotating contact part Portion's engaging separation.That is, convex shaped part and multiple rotating contact pieces (equivalent to the convex portion of rotating contact part) and the rotation Separation is engaged (equivalent to the recess of rotating contact part) between switching contact.In this case, due to multiple rotating contact pieces With the convex shaped part Elastic Contact of multiple second fixed contact parts, therefore by the reaction force when the Elastic Contact is released, Clicker sense of touch can be produced.

The present invention involved by technical scheme 3 is a kind of rotary coder, and it is subordinated to the hair involved by technical scheme 2 Bright, the rotary coder is characterised by, the second fixed contact part turns into fixing end with the side on its length direction And the opposite side on its length direction turns into the mode of free end, cantilever support is in pedestal.

In the present invention involved by technical scheme 3, by with said structure, in the convex of the second fixed contact part During multiple rotating contact piece Elastic Contacts of portion and rotating contact part, the convex shaped part is by the pressing force of rotating contact piece, temporarily The opposite direction displacement of Shi Xiangyu projected directions.Now, the free end side of the second fixed contact part is according to the displacement of convex shaped part Amount, the point-blank displacement on the length direction of the second fixed contact part.Moreover, being located at multiple rotations of rotation in convex shaped part When between contact chip, i.e. terminate the Elastic Contact with convex shaped part, convex shaped part and rotating contact in multiple rotating contact pieces of rotation When the Elastic Contact of piece is released, the free end side of the second fixed contact part is recovered to initial position.Pass through anti-work now Firmly, clicker sense of touch can be produced.

The present invention involved by technical scheme 4 is a kind of rotary coder, and it is subordinated to technical scheme 2 or technical side The present invention involved by case 3, the rotary coder is characterised by that multiple second fixed contact parts include convex shaped part The different fixed contact part in position, to be contacted in the convex shaped part of multiple rotating contact pieces and multiple second fixed contact parts When, phase difference is produced in a rotational direction.

In the present invention involved by technical scheme 4, by the way that with said structure, multiple rotating contact pieces are being repeated With contact/noncontact of the convex shaped part of multiple second fixed contact parts, and by the rotating contact piece and the second fixed contact During the electrical connection on-off of the convex shaped part of part, phase difference is produced between the electric signal (pulse signal) exported.In the feelings Under condition, with following effect, i.e., the electric signal (arteries and veins for for example determining phase offset by using the circuit using equipment and exporting Rush signal), direction of rotation and the anglec of rotation of rotating contact part can be detected.

The present invention involved by technical scheme 5 is a kind of rotary coder, and it is subordinated to the sheet involved by technical scheme 1 Invention, the rotary coder is characterised by that rotor part includes the embedded centre being arranged in the axial direction of rotor part Portion and the supporting member supported to rotating contact part, supporting member are included rotating contact positioning parts in defined position Put the positioning groove portion at place.

In the present invention involved by technical scheme 5, by with said structure, using the positioning groove portion of supporting member come Position rotating contact component, so as to prevent the position of the rotating contact part in supporting member from offseting.In addition, by rotating contact Part insert be embedded in positioning groove portion when, can with position groove portion depth accordingly realize on the axial direction (short transverse) of supporting member Flattening.

The present invention involved by technical scheme 6 is a kind of rotary coder, and it is subordinated to the sheet involved by technical scheme 1 Invention, the rotary coder is characterised by, the rotary encoder also includes cover, and the cover is with by rotor Part, rotating contact part, the first fixed contact part and the second fixed contact part are clamped in it between base component State, base component is installed on, base component includes the calvus for being configured at base component, cover includes fastener, will When cover is installed on base component, calvus is locked to the position opposed with calvus of fastener, and calvus includes guiding cap The cambered surface of the insertion end of part, the cambered surface at locking end of the fastener comprising guiding calvus, when cover and base component are engaged, pawl The locking end of piece is locked to fastener.

In the present invention involved by technical scheme 6, by the way that with said structure, cover is being installed on into base component When, guide the insertion end of cover, and the cambered surface guide base part of the fastener along cover along the cambered surface of calvus Calvus locking end, therefore, it is possible to which cover easily is installed on into base component.In addition, cover is being installed on into pedestal During part, the locking end of the calvus of base component is locked to the fastener of cover, therefore cover is difficult from base component Abjection.

The present invention involved by technical scheme 7 is a kind of rotary coder, and it is subordinated to the sheet involved by technical scheme 6 Invention, the rotary coder is characterised by that the rotary encoder includes compression member, and the compression member is installed on Between cover and rotor part, when cover is installed on into base component, by from the lateral base component side of cover To pressing and compress, so as to be sealed to the gap between cover and rotor part, compression member is utilized based on pressing Compression, absorb rotor part, rotating contact part, base component, the first fixed contact part, the second fixed contact part The build-up tolerance of tolerance and all parts.

In the present invention involved by technical scheme 7, by the way that compression member with said structure, can be utilized to cover Gap between rotor portions is sealed.Also, at the same time, by from the lateral base component side of cover to press Pressure, that is to say, that by pressing rotor part to base component side all the time with constant load via compression member, can absorb Rotor part, rotating contact part, base component, the first fixed contact part, the tolerance of the second fixed contact part and each The build-up tolerance of individual part, therefore, it is possible to prevent the loose contact of rotating contact part and the first fixed contact part.In addition, also The loose contact of the convex shaped part of multiple rotating contact pieces and multiple fixed contact pieces when rotor part rotates can be prevented.At this In the case of, it can be ensured that constant clicker sense of touch is produced all the time.

Invention effect

In accordance with the invention it is possible to obtain a kind of further miniaturization and cost degradation compared with the past of can realizing Rotary coder.

Implement the explanation of mode invented below by referring to being used for of carrying out of accompanying drawing and further specify that the present invention's Above-mentioned purpose, other purposes, feature and advantage.

Brief description of the drawings

Fig. 1 is the stereogram of an example of the embodiment for representing rotary coder involved in the present invention.

Fig. 2 is Fig. 1 exploded perspective view.

Fig. 3 is the figure for an example for representing the base component used in the rotary coder shown in Fig. 2, Fig. 3's (A) it is its top view, Fig. 3 (B) is its front view, and Fig. 3 (C) is its stereogram.

Fig. 4 (A) is Fig. 3 (A) line A-A sectional view, and Fig. 4 (B) is Fig. 3 (A) line B-B sectional view.

Fig. 5 is the figure for an example for representing the rotor part used in the rotary coder shown in Fig. 2, Fig. 5's (A) it is its upward view, Fig. 5 (B) is Fig. 5 (A) top view.

Fig. 6 (A) is Fig. 5 (A) line A-A sectional views, and Fig. 6 (B) is the enlarged drawing of Fig. 6 (A) part B.

Fig. 7 is an example for representing the first rotating contact part used in the rotary coder shown in Fig. 2 Figure, Fig. 7 (A) is its top view, and Fig. 7 (B) is Fig. 7 (A) front view.

Fig. 8 is an example for representing the second rotating contact part used in the rotary coder shown in Fig. 2 Figure, Fig. 8 (A) is its top view, and Fig. 8 (B) is Fig. 8 (A) front view.

Fig. 9 (A) is to represent that the first fixed contact part and second used in the rotary coder shown in Fig. 2 is consolidated Determine the top view of contact component and an example of their ordered state, Fig. 9 (B) is Fig. 9 (A) amplification solid Figure, Fig. 9 (C) is Fig. 9 (A) front view.

Figure 10 is the figure for an example for representing the cover used in the rotary coder shown in Fig. 2, Figure 10's (A) it is its top view, Figure 10 (B) is Figure 10 (A) line A-A sectional view, and Figure 10 (C) is Figure 10 (A) right view.

Figure 11 be represent by the first fixed contact part and the second fixed contact part shown in Fig. 9 be assembled in Fig. 3 and The figure of one example of the state of the base component shown in Fig. 4, Figure 11 (A) is its stereogram, and Figure 11 (B) is its vertical view Figure.

Figure 12 (A) is the solid of the rotor part used in the rotary coder from rear side shown in Fig. 2 Figure, Figure 12 (B) is by one of state of the rotating contact parts group loaded on rotor part from the rear side of rotor part The stereogram of example.

Figure 13 (A) is for the cover used in the rotary coder shown in Fig. 2 is assembled in into base portion The stereogram that one example of the state of part is illustrated, Figure 13 (B) is when being used for cover is assembled in into base component The right view that illustrates of effect.

Figure 14 (A) is the cover group used in the rotary coder from the outside of cover shown in Fig. 2 The major part amplification stereogram of state during loaded on pedestal, Figure 14 (B) is represented from the inner side of cover during the state Major part amplification stereogram.

Figure 15 be for according to time series to the cover used in the rotary coder shown in Fig. 2 is assembled in The main portion sectional view that snap action during base component is illustrated.

Figure 16 is the figure illustrated for the effect to the rotary coder shown in Fig. 1 and Fig. 2, Figure 16 (A) The stereogram of state when representing to make the rotating contact part rotate, Figure 16 (B) be represent rotating contact part now with And second fixed contact part effect major part amplification right view.

Figure 17 (A) is the circuit of an example of the output circuit for representing the rotary coder shown in Fig. 1 and Fig. 2 Figure, Figure 17 (B) is to represent its output waveform figure for electrically exporting example.

Embodiment

Fig. 1 is the stereogram of an example of the embodiment for representing rotary coder involved in the present invention, and Fig. 2 is Fig. 1 exploded perspective view.

As shown in Figure 1, Figure 2, shown in Figure 11, Figure 13 etc., for example main bag of rotary coder 10 involved by present embodiment Include：Base component 12；It is configured at the first fixed contact part 14 of an interarea side of base component 12；Interval is configured at Second fixed contact part 16,18 of the both sides of the first fixed contact part 14；Rotatably it is supported on base component 12 The rotor part 20 of one interarea side；The side that is configured in the axial direction of rotor part 20 simultaneously can be with the first fixed contact The rotating contact part 22 that part 14 is contacted；The compression member 24 for the another side being configured in the axial direction of rotor part 20；To incite somebody to action First fixed contact part 14, the second fixed contact part 16,18, rotating contact part 22, rotor part 20 and compression unit The state that part 24 is clamped between base component 12 is installed on the cover 26 of base component 12.

Next, being illustrated to above-mentioned all parts.First, base component 12 is described in detail.

As shown in Figure 2 and Figure 3, base component 12 includes the Base body 28 of such as square shape.Base body 28 is in one Interarea, which has, stores groove portion 30, and the storage groove portion 30 is from the side surface part 28a of an avris of Base body 28 length direction Center to the center of Base body 28 to be linearly extended.Store groove portion 30 and be formed as when such as section view is observed being in U-shaped Rectangular shape when shape and top view.

In addition, for example as shown in Fig. 4 (A), Base body 28 is included in pedestal master in its leading section for storing groove portion 30 Run through in the short transverse (thickness direction) of body 28 and during section view observation in T-shaped and top view when rounded through hole Portion 32.Possess the path hole portion 32a and diameter holes run through to another interarea side (rear side) of Base body through hole portion 32 The large diameter hole portion 32b that portion 32a is connected and run through to an interarea side (face side) of Base body 28.Such as Fig. 3 (C) and figure Shown in 4 (A), top view is configured with through pars intermedia of the hole portion 32 in the short transverse (thickness direction) of Base body 28 When end difference 34 annular in shape.

Also, Base body 28 has with storing the interval of groove portion 30 is abreast configured such as two in one interarea Individual storage groove portion 36a, 36b.Groove portion 36a, 36b is stored to store the both sides of groove portion 30 and abreast separating rule with storing groove portion 30 Fixed interval and configure.During groove portion 36a, 36b is stored from the side surface part 28a of an avris of Base body 28 length direction Entreat to the side surface part 28b of opposed another avris to be linearly extended.Store groove portion 36a, 36b and be respectively formed as example Rectangular shape when being in U-shaped and top view during such as section view observation.

Also, in Base body 28, with side surface part 28c, 28d of the side surface part 28a of above-mentioned avris adjoining Central portion on central portion on length direction and the side surface part 28b opposed with the side surface part 28a of an avris length direction, point For example each calvus 38 is not configured with.Three calvus 38 are formed as identical shape and size, therefore for example with configuration Exemplified by the side surface part 28b of Base body 28 calvus 38, reference picture 2, Fig. 3, Fig. 4 etc. carry out described further below.

Calvus 38 is included from the upper end in side surface part 28b short transverse to central portion and to side surface part 28b outer pleurapophysis The calvus main body 40 gone out.Calvus main body 40, which is included on side surface part 28b length direction, has defined length and from side surface part Projection tab 42 vertically prominent laterally 28b.As shown in Fig. 3 (B), (C) and Fig. 4 (A), (B), projection tab 42 has Planar portions orthogonal with side surface part 28b (level face) 44, be vertically extended from the nose portion of the planar portions 44 and with Parallel side surface part 28b another planar portions 46, the R (Le of ァ mono-) being connected with planar portions 46 faces 48.Cambered surface portion (the Le portions of ァ mono-) 48 top 48a is connected with the ora terminalis in side surface part 28b short transverse, and its terminal 48b is connected with another planar portions 46.

Said base main body 28 and calvus 38 are integrally formed by insulating materials.

In the present embodiment, as shown in Fig. 3 (A), such as the length of an edge of the base component 30 shown in Fig. 3, Fig. 4 Spend L1 for example formed as 2.75mm~2.65mm, shown in such as Fig. 3 (B), its height H1 (thickness) for example formed as 0.52mm~ 0.62mm.As shown in Fig. 3 (A), store groove portion 30,36a, 36b well width W1, W2, W3 and be for example respectively formed as 0.40mm ~0.45mm, store groove portion 30 width on center with store groove portion 36a, 36b width on center away from From L2 respectively for example formed as 0.85mm~0.95mm.As shown in Fig. 4 (B), the slot length L3 difference of groove portion 36a, 36b is stored For example formed as 2.35mm~2.45mm.As shown in Fig. 4 (A), the groove depth D for storing groove portion 36a, 36b is for example formed respectively For 0.27mm~0.33mm.

In addition, as Fig. 9 (A) shown in, through hole portion 32 path hole portion 32a diameter phi 1 for example formed as 0.70mm ~0.74mm, large diameter hole portion 32b diameter phi 2 is for example formed as 1mm~1.05mm.As shown in Fig. 4 (A), large diameter hole portion 32b Depth D-shaped turn into store groove portion 36a, 36b groove depth D it is identical.

Also, as shown in Fig. 3 (A), the length L4 of calvus 38 is for example formed as 0.75mm~0.85mm, its width W4 Such as be formed as 0.11mm~0.19mm, shown in such as Fig. 4 (A), (B), its height H2 is for example formed as 0.24mm~0.30mm, arc The R in face 48 is for example formed as 0.05mm~0.25mm.

Next, reference picture 2 and Fig. 9 are carried out to the first fixed contact part 14 and the second fixed contact part 16,18 It is described further below.

First, the first fixed contact part 14 is illustrated.As shown in Fig. 9 (A), (B), (C), first fixation connects The fixed contact piece 50 of rectangular banding when contact portion part 14 includes such as top view.Fixed contact piece 50 is in its longitudinal direction One end fixation ring portion 52 rectangular during the observation of rounded and section view when there is such as top view, in its longitudinal direction The other end has the kink 54 in L-shaped when for example section view is observed.The arc sections 52a and fixed contact piece 50 of fixed ring portion 52 Length direction on one end connection.The long leg 54a of rectangular shape when kink 54 includes top view, from long leg 54a Length direction on one end extend vertically setting and be integrally formed with short leg 54b.Short leg 54b one end connects with fixation Other end connection on the length direction of contact 50.

Fixed contact piece 50, fixed ring portion 52 and kink 54 are by the bodily form of such as metal material one as conductive material Into, and be formed as the first fixation contact terminal.

Next, being illustrated to a second fixed contact part 16.As shown in Fig. 9 (A), (B), (C), this second Fixed contact part 16 include such as top view when for rectangular strip shape fixed contact piece 56.It is fixed as shown in Fig. 9 (B) The one end of contact chip 56 in its longitudinal direction is configured with the convex shaped part 58 of such as chevron, and the other end in its longitudinal direction is matched somebody with somebody It is equipped with the kink 60 in L-shaped when for example section view is observed.Convex shaped part 58 turns into when being observed to one interarea side with section view The form that the shape of falling V is protruded, and the top 62A shapes of the cross part by two hypotenuse portion 58a, 58b and positioned at hypotenuse portion 58a, 58b Into.Cambered surface portion 62a of the 62A formation in top with defined curvature.When being configured with the front of convex shaped part 58 in top view The extended portion 64 being extended on fixed contact piece 56, the length direction of convex shaped part 58.In this case, fixed contact Piece 56 and hypotenuse portion 58a cross part 59a turn into bending section, the cross part 59b of hypotenuse portion 58b and extended portion 64 into For another bending section.

It should be noted that kink 60 is using the identical knot of kink 54 with the first above-mentioned fixed contact part 14 Structure, with long leg 60a and short leg 60b.

Next, being illustrated to another the second fixed contact part 18.Another the second fixed contact part 18 with The second fixed contact of said one part 16 is compared, and the different this point in position for only forming convex shaped part are different, in addition With identical structure.It should be noted that in another the second fixed contact part 18, to with said one second The position mark identical symbol of the identical structure of fixed contact part 16/function.

For the convex shaped part 62 of the second fixed contact of said one part 16, particularly for example such as Fig. 9 (A) institute Show, be set to by the distance from the boundary portion of fixed contact piece 56 and kink 60 to the top 62A of convex shaped part 58 center line L1, by the boundary portion from fixed contact piece 56 and kink 60 in another the second fixed contact part 18 to convex shaped part 58 When the distance of top 62B center line is set to L2, the top 62A and 62B of both sides position are set in the way of L1 ＞ L2.

Moreover, for the second fixed contact part 16 and 18, respectively by such as metal material as conductive material Fixed contact piece 56, convex shaped part 58, kink 60 and extended portion 64 is integrally formed, and contact jaw is fixed as second Son.It should be noted that the second fixed contact part 16,18 can be properly formed for example, by bending machining etc..

In the present embodiment, for example as shown in Fig. 9 (A), the external diameter of the fixation ring portion 52 of the first fixed contact piece 14 φ 1 is for example formed as 0.94mm~0.98mm, and the internal diameter φ 2 (diameter of annular distance 53) of fixed ring portion 52 is for example formed as 0.72mm ~0.76mm.In addition, the kink of the fixed contact part 16,18 of kink 54 and second of the first fixed contact part 14 60th, 60 width W1 and W2, W3 be respectively formed as it is identical, for example formed as 0.35mm~0.40mm.

As shown in Fig. 9 (C), the fixed contact part 16,18 of kink 54 and second of the first fixed contact part 14 Kink 60,60 height H1 (thickness) be respectively formed as it is identical, for example formed as 0.05mm~0.12mm.First fixation connects The length L3 of the kink 60,60 of the fixed contact part 16,18 of kink 54 and second of contact portion part 14 is respectively formed as phase Together, for example formed as 0.5mm~0.7mm.In addition, the length L4 of the fixed contact piece 56,56 of the second fixed contact part 16,18 For example formed as 0.58mm~0.68mm.In addition, top 62A, 62B of the convex shaped part 58,58 of the second fixed contact part 16,18 Cambered surface portion 62a, 62b be respectively formed as identical radius, for example formed as 0.1mm~0.3mm.

Also, in the second fixed contact part 16,18, the length L4 of fixed contact piece 56 and the vertical view of convex shaped part 58 are seen Length L5 is for example formed as 1.79mm~1.89mm obtained from length on length direction when examining is added.Also, second consolidates Determine length L6 obtained from the length L5 in contact component 16,18 is added with the length L6 of extended portion for example formed as 2.0mm~2.1mm.

In addition, the cambered surface portion of top 62A, 62B by six fixed contact parts 16,18 of rotating contact piece 90 and second The releasing of 62a, 62b Elastic Contact and the Elastic Contact, so that clicker sense of touch is produced, particularly for example such as Fig. 9 (C) institute Show, from cross part 59a, 59a of each fixed contact piece 56,56 and hypotenuse portion 58a, 58a of the second fixed contact part 16,18 (bending section) is more short then harder apart from L7 to top 62A, 62B's of convex shaped part 58,58, that is to say, that resistance during clicker Power is bigger, so that clicker sense of touch is improved.In such a situation it is preferred that this apart from L7 for example formed as 0.8mm~1.6mm.

For example as shown in Fig. 2 and Figure 11 (A), (B), above-mentioned first fixed contact part 14 and second fixes contact Part 16,18 is stored and is held in the storage groove portion 30 of said base part 12 respectively, the end difference 34 through hole portion 32 and Store groove portion 36a, 36b.In this case, the fixed contact piece 50 of the first fixed contact part 14 is stored and is held in accommodating groove Portion 30, while it fixes the large diameter hole portion 32b that ring portion 52 is inserted through hole portion 32, stores and is held in end difference 34.In addition, the Two fixed contact parts 16,18 are respectively with (A), (B) of one end such as Figure 11 on the length direction of its fixed contact piece 56,56 Apical grafting face 37a, 37b on the length direction of shown storages groove portion 36a, 36b with base component 12 separate as defined in be spaced and The mode of configuration, stores and is held in storage groove portion 36a, 36b.

Also, the fixation of the fixed contact part 16,18 of fixed contact piece 50 and second of the first fixed contact part 14 Contact chip 56,56 is fixed on storage groove portion 30 by the appropriate fixed mechanism 66 such as adhesive and stores groove portion 36a, 36b. In fig. 2, for the ease of diagram fixed mechanism 66, it is set to the fixed mechanism 66 being configured at fixed contact piece 50 and fixation connects The state of the upper surface of contact 56,56, but actually fixed contact piece 50 and fixed contact piece 56,56 passes through fixed mechanism 66, it is fixed on bottom surface position and/or the sideway stance stored groove portion 30 and store groove portion 36a, 36b.

Therefore, the second fixed contact part 16,18 is for example in the state shown in Fig. 9 (B) and Figure 11 (A), (B) Under, the side on its length direction (is fixed on the storage groove portion of base component 12 by fixed mechanism 66 as fixing end 36a, 36b position), the opposite side on its length direction turns into free end 65 (the front end position of extended portion 64), so that As cantilever support in the form of base component 12.

Next, reference picture 2, Fig. 5, Fig. 6 and Figure 12 etc. rotor part 20 is carried out it is described further below.

For example as shown in Fig. 2 and Fig. 5, the rotor shaft 70 rounded when being observed comprising such as section view of rotor part 20. The side of rotor shaft 70 in its axial direction is configured with operation axle portion 72 rounded during such as section view observation, in its axial direction Pars intermedia be configured with the supporting member 74 formed by for example discoideus flange part.The diameter of rotor shaft 70 is being set to φ 1, the diameter for operating axle portion 72 is set to φ 2, when the diameter of supporting member 74 is set into φ 3, as such as ＜ φ 3 of 1 ＜ φ of φ 2 Form.The Pivot axle of rotor shaft 70 and the central shaft of operation axle portion 72 and supporting member 74 are located on same axle.

Rotor shaft 70 has the function as the drive shaft for rotating rotor part 20, and operation axle portion 72, which has, is used as example The function in turning effort portion when such as being rotated by making rotor part 20 manually, supporting member 74 has what is described in detail by after Rotating contact part 22 is supported on the function of rotor shaft 70.Rotor shaft 70, operation axle portion 72 and supporting member 74 are by making It is integrally formed for such as plastic material of insulating materials.

The other end in the axial direction of the rotor shaft 70 of rotor part 20 is via being configured at the one of said base part 12 The fixation ring portion 52 of first fixed contact part 14 of individual interarea, inserts the path hole portion through hole portion 32 for being embedded in base component 12 32a, and be supported to rotate freely.Fixed ring portion 52 has as rotor shaft 70 is supported for the bearing portion that rotates freely Function.

As shown in Fig. 5, Fig. 6 and Figure 12, supporting member 74 possesses example in an interarea (surface) of the supporting member 74 Rounded ring-type groove portion 76 during such as top view, possesses positioning groove portion 78 in another interarea of the supporting member 74.Ring-type It is embedded with groove portion 76 in the compression member 24 for example formed by o-ring, positioning groove portion 78 and is embedded with rotation described later Contact component 22.For example as shown in Fig. 5 (A) and (A), (B) of figure (6) and Figure 12 (A), positioning groove portion 78 is configured with Central part from supporting member 74, in other words set for example with radiated entends laterally from the pivot of rotor shaft 72 Six radiation grooves 80.As shown in Fig. 5 (A) and Figure 12 (A), six radiation grooves 80 and the periphery week for being located at rotor shaft 70 The central slot sections 82 of the central portion enclosed are connected.

In the present embodiment, as Fig. 5 (A) shown in, six radiation groove 80 well width W respectively for example formed as 0.40mm~0.45mm, from the center of supporting member 74 to radiation groove 80 front end length L for example formed as 1.05mm~ 1.15mm.In addition, as shown in Fig. 5 (B), the diameter phi 1 of rotor shaft 70 is for example formed as 0.63mm~0.68mm, operating shaft The diameter phi 2 in portion 72 for example formed as 1.15mm~1.20mm, the diameter phi 3 of supporting member 74 for example formed as 2.35mm~ 2.40mm.In addition, the length (thickness) in the short transverse of supporting member 74 is for example formed as 0.37mm~0.43mm.Also, As Fig. 6 (A) shown in, the external diameter φ 4 of the ring-type groove portion 76 of supporting member 74 for example formed as 1.8mm, the ring-type groove portion 76 Groove depth t1 is for example formed as 0.02mm~0.08mm.In addition, the adjacent radiation groove 80 of the positioning groove portion 78 of supporting member 74 Between circumferencial direction on angle, θ for example formed as 60 °, the groove depth t2 of the radiation groove 80 for example formed as with ring-type groove portion 76 groove depth t1 is identical.Also, as shown in Fig. 5 (A), the external diameter φ 5 for positioning the central slot sections 82 of groove portion 78 is for example formed For 1.10mm~1.15mm.

Next, carrying out following explanation to rotating contact part 22 referring for example to Fig. 2, Fig. 7 and Fig. 8.Rotating contact portion Part 22 includes rotating contact portion 84 and relay 86.As shown in Fig. 2 and Fig. 7 (A), rotating contact portion 84 includes such as ring The rotary substrate 88 of shape, is configured with radial such as top view extended laterally in the outer peripheral face of rotary substrate 88 When rectangular shape six rotating contact pieces 90.Rotary substrate 88 and rotating contact piece 90 are by being used as for example golden of conductive material Belong to material to be integrally formed.

The rotating contact portion 84 is flush-mounted in the positioning groove portion 78 of above-mentioned supporting member 74, and passes through the fixed mechanisms such as adhesive (not shown) and be supported in the positioning groove portion 78 of supporting member 74.That is, rotating contact portion 84 is via supporting member 74 Rotor part 20 is fixed on, and is linkedly rotated with the spinning movement of the rotor shaft 70 of rotor part 20.

In addition, as shown in Fig. 2 and Fig. 8, relay 86 is for example formed as the rectangular ring-type of section.Relay 86 is by conduct Such as metal material of conductive material is formed.

The relay 86 inserts the large diameter hole portion 32b through hole portion 32 for being embedded in said base part 12, and is placed in first The upper surface of the fixation ring portion 52 of fixed contact part 14.Moreover, rotor part 20 rotor shaft 70 insert be embedded in base portion Part 12 through the path hole portion 32a of hole portion 32 when, the above-mentioned rotation that the relay 86 can be with being supported on supporting member 74 connects The rotary substrate 88 of contact portion 84 is contacted.

The rotating contact part 22 being made up of the rotating contact portion 84 and relay 86 is used as rotating contact terminals.

In the present embodiment, for example as shown in Fig. 7 (A), (B), the width W of rotating contact piece 90 for example formed as 0.30mm~0.35mm, L is for example formed as 0.43mm~0.48mm for its length.In addition, the internal diameter φ 1 of rotating contact piece 90 is for example Be formed as 0.80mm~0.85mm, its external diameter φ 2 is for example formed as 1.05mm~1.10mm.In addition, the phase in rotating contact portion 84 The angle, θ on circumferencial direction between adjacent rotating contact piece 90 is for example formed as 60 °, and the height H of rotating contact piece 90 is (thick Degree) for example formed as 0.10mm.In addition, from an interarea (surface) of the Base body 28 of base component 12 to rotating contact portion The distance of the lower surface of the rotating contact piece 90 of part 22 is preferably for example formed as 0mm~0.15mm.In this case, 0mm is represented The state that the lower surface of rotating contact piece 90 is abutted with an interarea (surface) of Base body 28.

Also, as shown in figure 8, the internal diameter φ 1 of relay 86 is for example formed as 0.72mm~0.77mm, its external diameter φ 2 Such as be formed as 0.91mm~0.96mm.

It should be noted that in the present embodiment, although by the rotating contact portion 84 that will individually set and in Rotating contact part 22 is formed after the combination of portion 86, but the rotating contact part 22 can also be by for example by above-mentioned rotating contact portion 84 and the component of relay 86 integration formed.

Next, reference picture 2, Figure 10, Figure 14 and Figure 15 etc. cover 26 is carried out it is described further below.

As shown in Fig. 2 and Figure 10, cover 26 includes substrate 92 square-shaped during top view.Substrate 92 have from It is rounded during such as top view that one interarea runs through to another interarea to be inserted through hole 93.In addition, substrate 92 has from it The side panel 94 being extended the end vertical of one edge.Also, substrate 92 has from the end of other three adjacent edge Other side panels 96 being extended with being respectively perpendicular.As Figure 10 (B), (C) shown in, three side panels 96 respectively at it substantially Central portion possesses the stop hole 97 for for example growing crosswise rectangular-shaped as fastener.

In this case, observe Fig. 2, substrate 92 is formed the top part of cover 26, a side panel 94 and its His three side panels 96 are formed the side surface part of cover 26.For example as shown in Figure 10 (C), the height of a side panel 94 The length H2 that length H1 on direction is formed in the short transverse than other three side panels 96 is short.In addition, from substrate 92 An interarea be formed as identical with above-mentioned H1 relative to the length H3 in the short transverse of the stop hole 97 of each side panel 96.

In addition, particularly as shown in Figure 14 (A), (B) and Figure 15 etc., the stop hole with the function as fastener 97 the stop hole 97 inner circumferential end face, be formed with three end faces 98 being formed by tabular surface and the guiding formed by cambered surface Face 100.

It should be noted that substrate 92, a side panel 94 and three side panels 96 by as insulating materials for example Plastic material is shaped by bending machining etc..

Above-mentioned cover 26 with by above-mentioned rotor part 20, rotating contact part 22, the first fixed contact part 14 and Second fixed contact part 16,18 is clamped in its state between base component 12, is installed on base component 12.

In the present embodiment, as shown in Figure 10 (A), in top view, the total length L1 of cover 26 is for example formed For 2.9mm~3.1mm, the diameter phi in hole 93 is inserted through for example formed as 1.3mm~1.4mm.In addition, as shown in Figure 10 (C), side The height H1 of panel 94 for example formed as 0.67mm~0.87mm, the overall height H2 of cover 26 for example formed as 1.12mm~ 1.32mm.Also, the length L3 on one side of the substrate 92 of cover 26, side panel 94 and side panel 96 respectively for example formed as 2.71mm~2.81mm, the length L2 of fastener 97 is for example formed as 0.9mm~1.0mm.In addition, as shown in Figure 10 (B), base The thickness t of plate 92, side panel 94 and side panel 96 is for example formed as 0.12mm.Also, as shown in Figure 10 (C), from substrate 92 interarea to the end face 98 of fastener 97 height H3 for example formed as 0.62mm~0.72mm, from one of substrate 92 Interarea to the guide surface 100 of fastener 97 height H4 for example formed as 0.94mm~1.00mm.

Next, by the structure construction and configuration relation of above-mentioned all parts, to the rotation involved by present embodiment Turn the effect of encoder 10, effect and carry out following explanation.

In the rotary coder 10, such as Figure 16 (A) shown in, when making rotor part 20 to a direction (for example, suitable Clockwise) rotation when, six rotating contact pieces 90 of rotating contact part 22 rotate, the second fixed contact part 16,18 Convex shaped part 58 is separated with the jog engaging of rotating contact part 22.That is, convex shaped part 58 and multiple rotating contact pieces 90 (equivalent to The convex portion of rotating contact part 22) and the plurality of rotating contact piece 90 between (equivalent to the recess of rotating contact part 22) block Close separation.Now, the Elastic Contact of convex shaped part 58 of multiple rotating contact pieces 90 and multiple second fixed contact parts 16,18, because Reaction force when this is released by the Elastic Contact, can make operator produce clicker sense of touch.

In this case, for example as shown in Figure 16 (A), (B), in the convex shaped part 58 of the second fixed contact part 16,18 During with multiple 90 Elastic Contacts of rotating contact piece of rotating contact part 22, the pressing that convex shaped part 58 passes through rotating contact piece 90 Power, temporarily to the direction displacement opposite with projected direction.Now, the free end side of the second fixed contact part 16,18 is according to convex The displacement in shape portion 58, the point-blank displacement on the length direction of the second fixed contact part 16,18.Moreover, in convex shaped part 58 When between multiple rotating contact pieces 90 of rotation, that is to say, that multiple rotating contact pieces 90 of rotation terminate and convex shaped part 58 cambered surface portion 62a, 62b Elastic Contact, cambered surface portion 62a, 62b of convex shaped part 58 and the Elastic Contact solution of rotating contact piece 90 Except when, the free end side of the second fixed contact part 16,18 is recovered to initial position.By reaction force now, it can make Operator produces clicker sense of touch.

Also, in the rotary coder 10 of present embodiment, the rotating contact piece 90 of rotating contact part 22 and Cambered surface portion 62a, 62b of the convex shaped part 58 of two fixed contact parts Elastic Contact position are in the direction of rotation of rotating contact piece 90 On stagger.Therefore, multiple rotating contact pieces 90 and the convex shaped part 58 of multiple second fixed contact parts 16,18 are being repeated Cambered surface portion 62a, 62b contact/noncontact, so that during by the electrical connection on-off of rotating contact piece 90 and convex shaped part 58, example As shown in figure 17, phase difference x is produced between the electric signal (pulse signal) exported.In this case, make with following With the electric signal (pulse signal) for for example determining phase offset by using the circuit using equipment and exporting, Neng Goujian Survey direction of rotation and the anglec of rotation of the rotating contact piece 90 of rotating contact part 22.

Therefore, in the rotary coder 10 of present embodiment, by making the second fixed contact part 16,18 and rotation The jog engaging separation of contact component 22, makes the convex of multiple rotating contact pieces 90 and multiple second fixed contact parts 16,18 The Elastic Contact of shape portion 58, therefore, it is possible to reach the rotation contacted all the time with the first fixed contact part 14 simultaneously by a structure The switching mechanism and generation clicker of the on-off of the electrical connection of the fixed contact part 16,18 of contact component 22 and second are touched The ratchet mechanism of sense.

Therefore, in the rotary coder 10, without as in the past beyond the structure for realizing electric contact, if Ratchet mechanism is put, thus it is compared with the past, further miniaturization and cost degradation can be realized.That is, in the rotary-type volume In code device 10, without setting ratchet special elastomeric element, lobe plate etc. in addition, therefore, it is possible to reduce number of components, so as to carry High assembleability, the promotion of further cost of implementation reduction and miniaturization.

Also, in the rotary coder 10 of present embodiment, such as shown in figure 12, rotating contact part 22 passes through The positioning groove portion 78 of supporting member 74 is positioned, can prevent rotating contact part 22 in supporting member 74 rotary substrate 88, The position skew of rotating contact piece 90.In addition, by rotating contact part 22 insert be embedded in positioning groove portion 78 when, can be with locating slot The depth in portion 78 accordingly implements the flattening on the axial direction (short transverse) of supporting member 74.

Also, in the rotary coder 10 of present embodiment, such as (A), (B) and Figure 15 (A) such as Figure 14 Shown in~(E), in the case where cover 26 is installed on into base component 12, cover is guided along the cambered surface portion 48 of calvus 38 12 insertion end 102, and along cover 26 fastener 97 the guide base part 12 of curved surface 100 calvus 38 plane Portion 44 (locking end), therefore, it is possible to which cover 26 easily is installed on into base component 12.In addition, being installed on by cover 26 During base component 12, the planar portions (locking end) of the calvus 38 of base component 12 are locked to the fastener 97 of cover 26, therefore Cover 26 is difficult to deviate from from base component 12.

Also, in the rotary coder 10 of present embodiment, such as shown in Figure 13 (A), (B), it can pass through Compression member 24 seals being inserted through hole 93 and insert rotor part 20 and being embedded in when being inserted through hole 93 of cover 26 for cover 26 This is inserted through the gap 104 between the outer peripheral face of hole 93 and rotor shaft 72.In addition, the length in the short transverse of compression member 24 H (thickness) is set as than the gap in the short transverse between the substrate 92 of cover 26 and the supporting member 74 of rotor part 20 G height (thickness).

In the case where cover 26 is assembled in into base component 12, by during the assembling from the lateral pedestal of cover 26 The side of part 12 to pressing, i.e. the pressing force via compression member 24 all the time with constant load to rotor part 20 to base The side of base member 12 applies.Contact is fixed thereby, it is possible to absorb rotor part 20, rotating contact part 22, base component 12, first The build-up tolerance of part 14, the tolerance of the second fixed contact part 16,18 and all parts.

Therefore, in the rotary coder 10, the fixed contact part 14 of rotating contact part 22 and first can be prevented Loose contact, in addition it is possible to prevent rotor part 20 rotate when rotating contact part 22 six rotating contact pieces 90 With the loose contact of the convex shaped part 58 of multiple second fixed contact parts 16,18.In this case, for operator, energy It is enough stably to ensure to produce constant clicker sense of touch all the time.

It should be noted that the present invention is not limited to each above-mentioned embodiment, can also in the range of its purport Carry out various modifications.

Symbol description

10 rotary coders

12 base components

14 first fixed contact parts

16th, 18 second fixed contact part

20 rotor parts

22 rotating contact parts

24 compression members

26 covers

28 Base bodies

28a side surface parts

30 store groove portion

32 run through hole portion

32a path hole portions

32b large diameter holes portion

34 end differences

36a, 36b store groove portion

38 calvus

40 calvus main bodys

42 projection tabs

44 planar portions (level face)

46 other planar portions (vertical surface part)

48 cambered surface portions

48a tops portion

48b terminal parts

50 fixed contact pieces

52 fix ring portion

53 fix the hole of ring portion

54 kinks

56 fixed contact pieces

58 convex shaped parts

60 kinks

60a long legs

60b short legs

At the top of 62A, 62B

62a, 62b cambered surface portion

64 extended portions

65 free ends

66 fixed mechanisms

70 rotor shafts

72 operation axle portions

74 supporting members

76 ring-type groove portions

78 positioning groove portions

80 radiation grooves

82 central slot sections

84 rotating contact portions

The hole in 85 rotating contact portions

86 relays

The hole of 87 relays

88 rotary substrates

90 rotating contact pieces

92 substrates (top part)

93 are inserted through hole

94 side panels (face portion)

95 fasteners (stop hole)

96 other side panels (side surface part)

98 end faces

100 guide surfaces

102 insertion ends

104th, G gaps

Claims

1. a kind of rotary coder, it is characterised in that including：

Base component, it is formed by insulating materials；

First fixed contact part, it is formed by conductive material, and is configured at an interarea of the base component；

Multiple second fixed contact parts, it is formed by conductive material, and with the first fixed contact part at spaced intervals It is configured at an interarea of the base component；

Rotor part, it is formed by insulating materials, and the side on axial direction is rotatably supported on the base component One interarea；And

Rotating contact part, it is formed by conductive material, the pars intermedia being configured in the axial direction of the rotor part and with it is described Rotor part rotates together, and in a rotational direction with jog,

Wherein,

The first fixed contact part all the time with the rotating contact component contact,

Make the bumps of the second fixed contact part and the rotating contact part by using the rotation of the rotor part Portion's engaging separation, so that the rotating contact part and the second fixed contact part are separate, and on-off institute The electrical connection of rotating contact part and the second fixed contact part is stated, while clicker sense of touch is produced,

The pars intermedia of the second fixed contact part in its longitudinal direction, which is included, to engage what be separated with the jog Convex shaped part,

The rotating contact part is included from the pivot side of the rotor part with multiple rotating contacts of radiated entends Piece,

Make the convex shaped part and the rotating contact piece Elastic Contact.

2. rotary encoder according to claim 1, it is characterised in that

The second fixed contact part is by cantilever support in the base component so that the side on its length direction turns into solid Opposite side on fixed end and its length direction turns into free end.

3. the rotary encoder according to claim 1 or claim 2, it is characterised in that

The different fixed contact part in position of the multiple second fixed contact part comprising the convex shaped part, with described many During the convex shaped part contact of individual rotating contact piece and the multiple second fixed contact part, phase difference is produced in a rotational direction.

4. rotary encoder according to claim 1, it is characterised in that

The rotor part is comprising the embedded pars intermedia being arranged in the axial direction of the rotor part and to the rotating contact portion The supporting member that part is supported, the supporting member is included the rotating contact positioning parts in the locating slot of assigned position Portion.

5. rotary encoder according to claim 1, it is characterised in that

The rotary encoder also includes cover, and the cover is with by the rotor part, the rotating contact part, institute State the first fixed contact part and the second fixed contact part is clamped in its state between the base component, pacify Loaded on the base component,

The base component includes the calvus for being configured at the base component,

The cover includes fastener, and when the cover is installed on into the base component, the calvus is locked to institute State fastener and the opposed position of the calvus,

The calvus includes the cambered surface for the insertion end for guiding the cover, and the fastener includes the locking for guiding the calvus The cambered surface at end,

When the cover and the base component are engaged, the locking end of the calvus is locked to the fastener.

6. rotary encoder according to claim 5, it is characterised in that

The rotary encoder includes compression member, the compression member be installed on the cover and the rotor part it Between, when the cover is installed on into the base component, by from the lateral base component side of the cover to Pressing and compress, so as to be sealed to the gap between the cover and the rotor part,

The compression member utilizes the compression based on the pressing, absorb the rotor part, the rotating contact part, The base component, the first fixed contact part, the tolerance of the second fixed contact part and all parts Build-up tolerance.