JP4809081B2 - Rotating electrical component with switch and manufacturing method thereof - Google Patents

Description

  The present invention relates to a rotary electrical component with a switch, and more particularly, to a rotary electrical component with a push switch that operates a pulse switch, a push switch, and the like by rotating a rotary shaft and moving in an axial direction, and a manufacturing method thereof.

  The structure of a conventional rotary electrical component with a switch includes a push switch that turns the switch on and off by the movement of the operating shaft in the axial direction, and a rotary switch such as a pulse switch or variable resistor by the rotating operation of the operating shaft. The thing of the structure which was made to operate an electrical component is known (for example, refer patent document 1).

  The structure of this conventional rotary electrical component with a switch is shown in FIGS. 14 is a front sectional view of a conventional rotary electrical component with a switch, FIG. 15 is a sectional view taken along line 15-15 in FIG. 14, FIG. 16 is a plan view of a movable elastic contact of an encoder unit, and FIG. It is a top view of the stamped metal plate.

  As shown in the figure, the conventional rotary encoder with a switch is fitted and supported in a circular hole 39A of the bearing 39 so that the intermediate circular portion 21A of the operation shaft 21 can rotate and move up and down, and the non-lower The circular portion 21B is fitted in the non-circular hole 40A of the rotating body 40 so that the rotational motion is transmitted but the vertical motion is not transmitted, and is prevented from being detached by a washer 64 inserted into the lower groove portion. The body 40 holds a movable elastic contact 42 made of an elastic metal thin plate having four elastic contacts 42A to 42D at the same radius and 90 ° intervals from the center as a movable contact.

  Then, as the fixed contact with which the movable contact is elastically contacted, the inner bottom surface of the case 41 is electrically connected to the same angular range as the elastic contacts 42A to 42D in the same angle range smaller than 90 ° by the off angle of the pulse signal. The same number of radially connected comb teeth 43A and 44A at both ends and equiangular positions are electrically independent from each other with an angular interval corresponding to the sum of the phase difference and the off-angle of the pulse signal. The two signal contacts 43 and 44 and the two signal contacts 43 and 44 are provided at the same radial position as the elastic contacts 42A to 42D at an angle slightly larger than 90 ° and electrically independent of the two signal contacts 43 and 44. Each fan-shaped common contact 45 is formed of a thin metal plate, and is disposed and fixed by insert molding.

  On the other hand, a central fixed contact 46A and an outer fixed contact 46B, which are a pair of fixed contacts of the switch unit, are formed at the center of the inner bottom surface of the case 41 with the same thin metal plate as the fixed contact of the encoder unit, and are subjected to insert molding processing. The outer fixed contact 46B is electrically connected to the common contact 45 of the encoder portion and the bottom surface of the case 41.

  Then, from one end of the outer periphery of the case 41, an elongated switch terminal 47 drawn out from the central fixed contact 46A of the switch portion, and an elongated common terminal connected to the outer fixed contact 46B of the switch portion and the common contact 45 of the encoder portion. 48 is led out and bent downward, and from the other end, two elongated signal terminals 49A and 49B respectively connected to the two signal contacts 43 and 44 of the encoder part are led out, and similarly downward It is bent to

  The switch terminal 47 drawn out from the central fixed contact 46A of the switch part is connected to the lead part 50 integrally formed of a thin metal plate around the central fixed contact 46A and the outer fixed contact 46B which are fixed contacts of the switch part. The signal contacts 43 and 44, which are fixed contacts of the encoder section, and the common contacts 45 are drawn out through portions where the signal contacts 43 and 44 of the encoder section disposed on the bottom surface of the case 41 and Since the common contacts 45 are all provided at an angle range of about 90 ° with the same radius, the fixed contacts of the encoder unit are not provided by arranging these common contacts 45 at positions close to the signal contacts 43. Can be easily secured at a large angle.

  Therefore, the fixed contacts 43, 44, 45 of the encoder section, the fixed contacts 46A, 46B of the switch section, and the terminals 49A, 49B, 47, 48 and the lead section 50 that are electrically connected to these are connected to the same metal. It can be easily formed by punching and bending a thin plate.

  A dome-shaped movable contact 71 made of a thin elastic metal plate is placed on the outer fixed contact 46B, which is a pair of fixed contacts of the switch section, to form a switch contact section, and a push plate is placed above the dome-shaped movable contact 71. The lower end 21 </ b> C of the operating shaft 21 is in contact via 73, and the washer 64 inserted into the groove of the operating shaft 21 is in contact with the concave top surface of the lower surface of the rotating body 40. Are attached and fixed together by bending the claw portion 51 </ b> A at the back surface of the case 41.

JP 2002-25395 A

However, in the conventional rotary electric part with a switch described above, it is necessary to provide four elastic contacts on the annular movable elastic contact, and it is not possible to cope with downsizing, and the contact reliability is improved (stable) There was a problem in the sex.
Further, since the common contact and the outer fixed contact are conductive, there is a problem that the circuit of the encoder unit and the switch unit cannot be used separately (separated), and the use form is limited.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, and to provide a rotating electrical part with a switch and a method for manufacturing the same that can achieve stable contact without limiting the use form. And

In order to solve the above-mentioned problem, in the rotary electric component with a switch according to the present invention, as a first solving means, a rotating shaft that can be rotated and pressed, a slider that rotates as the rotating shaft rotates, and the rotation A movable contact that is displaced in accordance with the pressing operation of the shaft, an annular rotation detection pattern that is in sliding contact with the slider, and a fixed contact for detecting the pressing operation that is provided inside the rotation detection pattern and faces the movable contact And a plurality of external terminals that are respectively connected to the rotation detection pattern or the fixed contact and extend outward from the case, and the slider is provided at three positions at equal angular intervals. A first intermittent pattern having an arc shape in which a conductive portion and an insulating portion, which are in contact with each other as the rotation shaft rotates, are alternately formed; What is one intermittent pattern? A circular arc composed of a second intermittent pattern having an arc shape in which a conductive portion and an insulating portion, which are in sliding contact with each other with a phase difference, are formed, and a conductive portion disposed between the first and second intermittent patterns. An arc-shaped common pattern, and the fixed contact is located at the center of the rotation detection pattern and is in contact with the movable contact in accordance with the pressing operation of the rotating shaft, and the outside of the center fixed contact A rotating electrical component with a switch having a peripheral fixed contact located at the same position, wherein the conductive portion of the first and second intermittent patterns, the common pattern, the central fixed contact and the peripheral fixed contact are the same metal plate A first connection part that connects the central fixed contact and the external terminal, the peripheral fixed contact, and the other external part. A second connecting portion that connects a child is formed at three locations formed between the conductive portion of the first intermittent pattern, the conductive portion of the second intermittent pattern, and the common pattern that constitute the rotation detection pattern. The surfaces of the first and second intermittent patterns and the common pattern, which are formed at two different locations in the gap and constitute the rotation detection pattern, are exposed and embedded in the inner bottom surface of the case. The first and second connecting portions are bent from the surface position of the rotation detection pattern to the bottom surface side of the case with a step and are embedded in the inner bottom portion of the case. A hole through which the surfaces of the first and second connecting portions are exposed is provided, and has a cylindrical jetty portion that houses the movable contact between the peripheral fixed contact and the rotation detection pattern, Hole is the jetty It was set as the structure located in.

Also, a second aspect of the present invention, the fixed contact for pressing operation detection provided inside the rotation detection pattern, the table of the central fixed contact and the peripheral fixed contacts is exposed from the inner bottom surface of the case The output surface is provided at a position lower than the exposed surface of the rotation detection pattern.
Further, as a third solving means, the first and second connecting portions are formed with a wide side connected to the external terminal, and a rib is provided on the wide portion, and the first and second connecting portions are provided with the first and second connecting portions. It was set as the structure embed | buried under the said case with the base end part of the wide part .

As a fourth solution, a rotating shaft that can be rotated and pressed, a slider that rotates as the rotating shaft rotates, an arc-shaped first intermittent pattern in which the slider slides, and a second A case in which a rotation detection pattern composed of an intermittent pattern and a common pattern and a center and peripheral fixed contact for pressing operation detection provided inside the rotation detection pattern are embedded in an electrically insulated state from each other And a rotating electrical component with a switch provided on the central and peripheral fixed contacts, and a movable contact that conducts between the fixed contacts by pressing the rotary shaft, by pressing a metal plate, and separating while maintaining the state that led to the metal frame by said rotation detecting patterns and the central and the peripheral stationary contact and the respective connecting portions, the central and the peripheral solid By bending each of the connecting portions of the contact and the metal frame, a step is formed by making the heights of the center and peripheral fixed contact formation surfaces different from the rotation detection pattern formation surfaces. And a step of mounting the metal plate in a molding die and filling the cavity with a molten resin, whereby a part of each of the connecting portions, the first intermittent pattern and the second intermittent pattern of the rotation detection pattern Between the pattern and the common pattern, the step of embedding the intermittent portions of the first and second intermittent patterns integrally in a resin to form the outer shape of the case, and the metal frame of the case and the metal plate by cutting the connecting portion, when possess and forming a single case, filling the molten resin by mounting the metal plate into the molding die in the cavity, the cylinder for accommodating the movable contact Of the jetty jetty A plurality of pressing pins are inserted corresponding to the guide pins, and the respective connecting portions surfaces of the center and peripheral fixed contacts are guided and positioned by these pressing pins, and the connecting portion is connected to the jetty portion by the pressing pin marks. The manufacturing method was such that a hole exposing the surface was provided .

Further, as a fifth solving means, the connecting portions of the center and peripheral fixed contacts and the metal frame are respectively between the first intermittent pattern, the second intermittent pattern, and the common pattern of the rotation detection pattern. A manufacturing method in which the connecting portion is formed by a part of the external terminal is located at two different positions in the gap formed in the above.
Further, as a sixth solving means, separating while maintaining the state in which the linked rotation detecting patterns and the central and the peripheral stationary contacts to the metal frame by a respective connecting portion, and the rotation detecting patterns wherein a step of performing press working on a state in which the central and peripheral fixed contacts led, was prepared comprising the step of separating said rotation detecting patterns and the central and peripheral fixed contact.

As described above, the rotary electric component with a switch according to the present invention has a rotating shaft that can be rotated and pressed, a slider that rotates with the rotation of the rotating shaft, and a movable that is displaced with the pressing operation of the rotating shaft. a contact, a slider has a fixed contact for pressing operation detection that faces the movable contact provided on the inner side of the rotation detection pattern and said rotation detecting patterns annular sliding contact is provided case, each rotation detecting And a plurality of external terminals that are connected to the contact pattern or the fixed contact and extend outward from the case. The slider has contact portions at three equiangular intervals, and the rotation detection pattern is connected to the rotation shaft. The arc-shaped first intermittent pattern in which the contact portion and the insulating portion that are in sliding contact with each other with rotation are alternately formed, and the first intermittent pattern are insulated from the conductive portion in which the contact portion is in sliding contact with a phase difference. Arc-shaped first with alternating parts While having an intermittent pattern and an arc-shaped common pattern made of a conductive portion arranged between the first and second intermittent patterns, the fixed contact is located at the center of the rotation detection pattern and the rotary shaft is pressed. A rotary electric component with a switch having a central fixed contact that contacts the movable contact and a peripheral fixed contact located outside the central fixed contact, the conductive portion of the first and second intermittent patterns, and a common The pattern, the central fixed contact and the peripheral fixed contact are stamped from the same metal plate and are embedded in the case while maintaining insulation from each other, and the first connecting portion that connects the central fixed contact and the external terminal, and the peripheral fixed The second connecting portion that connects the contact and the other external terminal is connected to each of the conductive portion of the first intermittent pattern, the conductive portion of the second intermittent pattern, and the common pattern that constitute the rotation detection pattern. Since it was formed in two different places among the three gaps formed in between, each pattern of the rotation detection pattern and each fixed contact for pressing operation detection are electrically separated from each other, The usage form is not limited and can be applied to any application. Further, since there are three contact portions of the rotation detecting slider, stable contact can be obtained and the size can be reduced. Further, the surfaces of the first and second intermittent patterns and the common pattern constituting the rotation detection pattern are exposed and embedded in the inner bottom surface of the case, and the first and second connecting portions are used for rotation detection. Since the pattern is bent from the surface position to the bottom side of the case and embedded in the bottom of the case, the resin easily flows into the step when molding the case. Insulation can be reliably taken. Moreover, since the hole which the surface of the 1st and 2nd connection part exposes is provided in the inner bottom face of a case, since the 1st and 2nd connection part can be pressed down with a guide pin through a hole, it is fixed Contact positioning is possible. In addition, there is a cylindrical jetty that houses the movable contact between the peripheral fixed contact and the rotation detection pattern, and the hole is located in the jetty so that the peripheral fixed contact and rotation detection Since the hole which exposes the 1st and 2nd connection part is formed in the cylindrical jetty part which can carry out insulation with the pattern for operation more reliably, and holds a movable contact, it is dome shape etc. using this hole Since the air in the movable contact can be released to the outside of the tubular jetty, the operation such as reversal of the movable contact accompanying the pressing operation is ensured, and the reliability of the switch is improved.

Also, the fixed contacts for the pressing operation detection provided inside the rotation detecting pattern, exposed surface of the central fixed contact and the peripheral stationary contact exposed from the inner bottom surface of the case, than the exposed surface of the rotation detecting pattern Since it is provided at a low position, the insulation between the rotation detection pattern and the fixed contact can be made more reliable.
In addition, the first and second connecting portions are formed wide on the side connected to the external terminal, ribs are provided on the wide portions, and the first and second connecting portions are attached to the case together with the base end portion of the wide portion. Since it is embed | buried, even when the width | variety of a 1st and 2nd connection part cannot be taken wide, it can be made to embed | buy firmly in a case inner bottom part .

In addition, a rotation shaft that can be rotated and pressed, a slider that rotates as the rotation shaft rotates, an arc-shaped first intermittent pattern, a second intermittent pattern, and a common pattern that are in sliding contact with the slider. A rotation detection pattern, and a center and peripheral fixed contact for detecting a pressing operation provided inside the rotation detection pattern, and a case in which the rotation detection pattern is electrically insulated from each other, and the center and peripheral fixed contact Is a method for manufacturing a rotary electrical component with a switch, which is provided with a movable contact that conducts between the fixed contacts by pressing the rotary shaft, and is rotated by pressing a single metal plate. and separating while maintaining the state that led to the metal frame detection patterns and the central and the peripheral stationary contacts by a respective connecting portion, bending each of the connecting portions between the central and the peripheral stationary contact and the metal frame Forming a step by making the heights of the central and peripheral fixed contact formation surfaces different from the rotation detection pattern formation surface, and mounting a metal plate in the molding die in the cavity. By filling the molten resin, resin is provided for a part of each connecting portion, between the first intermittent pattern of the rotation detection pattern, the second intermittent pattern, and the common pattern, and the intermittent portion of the first and second intermittent patterns. Embedded in the body and forming the outer shape of the case, and the step of cutting the connecting portion between the case and the metal frame of the metal plate to form a single case. The rotation detection pattern and the center and peripheral fixed contacts for detecting the pressing operation provided inside the rotation detection pattern can be easily embedded in the case in a state of being electrically insulated from each other. Can do. Further, when the metal plate is mounted in the molding die and the molten resin is filled in the cavity, a plurality of pressing pins are inserted corresponding to the formation position of the cylindrical jetty portion that houses the movable contact, During the molding of the case, these holding pins guide and position the connection surface of each of the central and peripheral fixed contacts, and the hole of the connecting portion is exposed in the jetty by the holding pin marks. The center and peripheral fixed contacts can be positioned with the pressing pin reliably, and the air in the movable contact, such as a dome shape during reversal, can be released outside the cylindrical jetty using the hole in the pressing pin mark. it can.

In addition, the connecting portions of the central and peripheral fixed contacts and the metal frame have two different positions among the gaps formed between the first intermittent pattern, the second intermittent pattern, and the common pattern of the rotation detection pattern. Since the connecting part is composed of a part of the external terminal, the external terminal of the fixed contact is used as the connecting part with the metal frame. The portion can be positioned between the patterns, and the molten resin can be surely poured between them to ensure insulation.
Also, a rotation detecting patterns and the central and peripheral fixed contact separating while maintaining the state that led to the metal frame by a respective connecting portion, in a state in which patterns for the rotation detection and the central and peripheral fixed contact is connected performs a step of performing press working, since it includes the step of separating the putter rotation detecting emissions and the central and peripheral stationary contacts, the press working in a state in which the rotation detecting patterns and the central and peripheral fixed contact is connected, since then separating the putter rotation detecting emissions and the central and peripheral fixed contact, it is possible to prevent deformation of the respective fixed contacts.

  Embodiments of the present invention are shown in FIGS. 1 is an exploded perspective view showing a rotary electric component with a switch of the present invention, FIG. 2 is a plan view showing the rotary electric component with a switch of the present invention, and FIG. 3 is a front view showing the rotary electric component with a switch of the present invention. FIG. 4, FIG. 4 is a cross-sectional view showing a rotary electric component with a switch according to the present invention, FIG. 5 is a plan view showing a case according to the present invention, and FIG. 6 is a case showing an embedded state of a rotation detection pattern and a fixed contact 7 is a sectional view taken along line 7-7 in FIG. 6, FIG. 8 is a sectional view taken along line 8-8 in FIG. 6, FIG. 9 is a plan view showing the slider of the present invention, and FIGS. 13 is a plan view showing the manufacturing process of the case of the present invention.

  As shown in FIG. 1, a rotating electrical component with a switch according to the present invention includes a box-shaped case 1 with an opening on the top surface, a fixed contact 2 for detecting a pressing operation, and a conductive material for detecting rotation. The pattern 3, the movable contact 4 and the slider 5 that are in contact with and slidingly contact with the fixed contact 2 and the conductive pattern 3, a rotating shaft 6 that can be rotated and pressed, and a rotating body 7 that rotates as the rotating shaft 6 rotates. And a leaf spring 8 that slides on the rotating body to cause a click feeling, and a mounting plate 9 that has a bearing portion that rotatably holds the rotating shaft 6 and covers the opening of the case 1. ing. The case 1 and the mounting plate 9 constitute a housing.

  The case 1 is made of an insulating material such as a synthetic resin and is formed in a box shape having an upper surface opening shape having a storage portion 1a. In addition, a pair of guide grooves 1b, 1b penetrating vertically is provided on the opposite outer surface of the case 1, and locking projections 1c, 1c projecting outward are provided in the guide grooves 1b, 1b, respectively. It has been. A pair of concave grooves 1d and 1d are provided on the upper surface side (front surface side) of the case 1 communicating with the guide grooves 1b and 1b, and the concave grooves 1d and 1d protrude upward (forward), respectively. Protruding pieces 1e and 1e are provided. Then, a mounting leg portion 9d of a mounting plate 9 to be described later is engaged with these guide grooves 1b and 1b, and is positioned and engaged by the locking projection 1c and the protruding piece 1e, so that the mounting plate 9 is on the upper surface side of the case 1 It is attached so as to cover the top of the opening.

  Moreover, as shown in FIGS. 5-8, the cylindrical jetty 1f is provided in the center of the opening part of case 1, The circular 1st accommodating part 1g is formed inside this jetty 1f as a boundary. An annular second storage portion 1h is provided on the outer side. In this case, the inner bottom surface of the first storage portion 1g is formed with a step so as to be slightly lower than the inner bottom surface of the second storage portion 1h. (See Figs. 7 and 8)

  Further, a central fixed contact 2a formed by embedding a conductive metal plate at the center position in a state where a part thereof is exposed by a method such as insert molding on the inner bottom surface of the first storage portion 1g. A semicircular arc-shaped peripheral fixed contact 2b is disposed so as to surround the central fixed contact 2a. The central fixed contact 2a and the peripheral fixed contact 2b constitute a fixed contact 2 for pressing operation. Further, on the side of the inner bottom surface of the first storage portion 1g facing the peripheral fixed contact 2b, a projecting surface portion 1i slightly protruding from the inner bottom surface is provided, and the surface of the projecting surface portion 1i is the surface of the peripheral fixed contact 2b. It is formed so as to be flush with the surface of the contact portion 2d provided protruding at three places and the surface of the contact portion 2c provided protruding from the central fixed contact 2a (see FIG. 7). When the movable contact 4 described later is stored in the first storage portion 1g, the movable contact 4 is placed so that the movable contact 4 is not inclined by the projecting surface portion 1i and the contact portion 2d of the peripheral fixed contact 2b. It has become.

  In addition, an arc-shaped first intermittently formed on the inner bottom surface of the second storage portion 1h is also formed by embedding a conductive metal plate in a state where a part thereof is exposed by a method such as insert molding. The pattern 3a, the second intermittent pattern 3b, and the common pattern 3c are arranged in an annular shape. The first intermittent pattern 3a, the second intermittent pattern 3b, and the common pattern 3c constitute a conductive pattern 3 for rotation detection.

  The first and second intermittent patterns 3a and 3b are provided with a plurality of (four in the present embodiment) substantially rectangular intermittent portions 3d and 3e along the circumferential direction. The insulating part is configured in a state where the resin material of the case 1 is filled and exposed, and conductive parts made of a metal plate and insulating parts made of a resin material are alternately formed. Further, the conductive portion and the insulating portion of the first intermittent pattern 3a and the conductive portion and the insulating portion of the second intermittent pattern 3b are in sliding contact with a contact portion 5d of the slider 5 described later at different timing, that is, a phase difference. Is formed. The first intermittent pattern 3a for the A phase signal, the second intermittent pattern 3b for the B phase signal, and the common pattern 3c are arranged on the same circumference so as to be approximately 120 degrees apart.

  Further, the pressing contact detection fixed contact 2 provided on the inner peripheral side of the rotation detecting conductive pattern 3 is a table of the central fixed contact 2a and the peripheral fixed contact 2b which are exposed from the inner bottom surface of the first storage portion 1g. The output surface is provided at a position lower than the exposed surface where the conductive pattern 3 for rotation detection is exposed from the inner bottom surface of the second storage portion 1h (see FIG. 7). For this reason, the insulation between the conductive pattern 3 of the rotation detection pattern and the fixed contact 2 for pressing operation can be made more reliable.

  The outer surface of the case 1 is provided with external terminals 2g and 2h that are electrically connected to the central fixed contact 2a and the peripheral fixed contact 2b and extend outward from the case 1. The external terminal 2g 2h are bent downward along the outer surface of the case 1, respectively. Similarly, external terminals 3f, 3g, and 3h that are electrically connected to the first and second intermittent patterns 3a and 3b and the common pattern 3c and extend outward from the case 1 are provided on different outer surfaces of the case 1. Similarly, the external terminals 3f, 3g, and 3h are arranged by being bent downward along the outer surface of the case 1, respectively. Further, each of the external terminals 2g, 2h, 3f, 3g, and 3h is formed with a reinforcing rib 2i and 3i that protrudes in the center along the extending direction of each external terminal.

  Further, a narrow first connecting portion 2e is provided between the central fixed contact 2a and the external terminal 2g, and the central fixed contact 2a and the external terminal 2g are electrically and electrically connected by the first connecting portion 2e. It is mechanically connected. Further, a narrow second connecting portion 2f is provided between the peripheral fixed contact 2b and the external terminal 2h, and the peripheral fixed contact 2b and the external terminal 2h are electrically and electrically connected by the second connecting portion 2f. It is mechanically connected. The first connecting portion 2e is provided in a gap formed between the conductive portion of the first intermittent pattern 3a and the conductive portion of the second intermittent pattern 3b that constitute the rotation detection pattern. The second connecting portion 2f is provided in a gap formed between the conductive portion of the second intermittent pattern 3b and the common pattern 3c.

  Further, the surfaces of the first and second intermittent patterns 3a, 3b and the common pattern 3c are exposed and buried in the inner bottom surface of the second storage portion 1h of the case 1, whereas the first and second patterns The connecting portions 2e and 2f are bent with a step from the surface positions of the first and second intermittent patterns 3a and 3b and the common pattern 3c toward the bottom surface of the case 1 (the lower side in FIG. 8). It is buried in the inner bottom. For this reason, when the case 1 is molded, since the resin easily flows into the stepped portion, the insulation between the conductive pattern 3 of the rotation detection pattern and the fixed contact 2 can be surely taken.

  In this case, as shown in FIG. 8, the 1st connection part 2e is bent in two places in the U-shape, and the 2nd connection part 2f is bent in one place in the L-shape. That is, the first connecting portion 2e on the side connected to the central fixed contact 2a is bent downward by approximately 0.35 mm on the external terminal 2g side and lifted upward by approximately 0.15 mm on the inner side. The second connecting portion 2f on the side connected to the peripheral fixed contact 2b is bent downward by about 0.2 mm on the external terminal 2h side. As a result, the height of the surface of the central fixed contact 2a and the peripheral fixed contact 2b is increased. Are set the same.

  The first and second connecting portions 2e and 2f are formed with a wide side connected to the external terminals 2g and 2h, and a reinforcing rib 2i is provided at the wide portion. And these 1st and 2nd connection parts 2e and 2f are embed | buried in the inner bottom part of case 1 with the base end part of the wide part, and the fixed contact 2 is formed. For this reason, even when the width | variety of the 1st and 2nd connection parts 2e and 2f cannot be taken wide, it can embed to the inner bottom part of case 1 firmly.

  Further, a tubular jetty portion 1f is provided between the first and second storage portions 1g and 1h so as to partition the fixed contact 2 and the conductive pattern 3 for rotation detection. Are provided with guide holes 1j, 1k that open upward at positions corresponding to the first and second connecting portions 2e, 2f. The surfaces of the first and second connecting portions 2e and 2f are exposed at the bottom surfaces of the guide holes 1j and 1k, and the first storage portion 1g and the second storage portion 1h are exposed through the guide holes 1j and 1k. And communicated with each other.

Further, on the bottom surface side of the case 1, these bottom surfaces are exposed at positions corresponding to the central fixed contact 2a, the peripheral fixed contact 2b, the first and second intermittent patterns 3a, 3b, and the common pattern 3c (on the bottom surface). Reach) Pin holes 1l, 1l, 1l for a plurality of pressing pins are provided, and when the fixed contact 2 and the conductive pattern 3 are insert-molded into the case 1, the fixed contact 2 and the conductive pattern are caused by the inflow pressure of the resin. The position 3 is appropriately positioned so that the position 3 does not shift.
Further, since the inner bottom surface of the case 1 is provided with guide holes 1j and 1k through which the surfaces of the first and second connecting portions 2e and 2f are exposed, the first and second connecting portions 2e and 2f are Since the guide pin can be pressed through the guide holes 1j and 1k, the positioning of the fixed contact 2 is further ensured.

  The movable contact 4 is made of a conductive thin metal plate and is formed in a disk shape having a dome-shaped bulging portion 4a that can be reversed at the center. The movable contact 4 is placed on the fixed contact 2 disposed in the first storage portion 1g of the case 1 in an opposing state, and the outer peripheral edge 4b contacts the contact 2d of the peripheral fixed contact 2b. The top lower surface side of the bulging portion 4a is disposed in a state of being opposed to and spaced apart from the central fixed contact 2a (contact portion 2c). The movable contact 4 and the fixed contact 2 constitute a push switch.

  As shown in FIG. 9, the slider 5 is made of a conductive thin metal plate and has an annular base portion 5a and round holes formed outwardly extending at three locations of the base portion 5a. It has a piece 5b and a plurality of contact pieces 5c extending from the mounting piece 5b in an annular direction (circumferential direction) and extending like a cantilever. The contact pieces 5c arranged at three locations are provided with contact portions 5d at equal angular intervals of 120 degrees, and the contact portions 5d are divided into three parts on the same circumference. The first intermittent pattern 3a, the second intermittent pattern 3b, and the common pattern 3c of the conductive pattern 3 for detection are in sliding contact with each other.

  Further, the slider 5 is attached so as to be rotatable integrally with the rotating body 7 by fixing the mounting piece 5b to a rotating plate portion 7b of the rotating body 7 described later. When the rotating body 7 is rotatably housed in the housing portion 1a of the case 1, the slider 5 is placed on the conductive pattern 3 disposed in the second housing portion 1h, and the rotating body is With the rotation of 7, the contact portion 5 d of each contact piece 5 c comes into sliding contact with the first and second intermittent patterns 3 a and 3 b and the common pattern 3 c. The slider 5 and the conductive pattern 3 constitute rotation detection means such as an encoder.

  The rotating shaft 6 is made of an insulating material such as synthetic resin, and has a cylindrical thick shaft portion 6a having a diameter larger than that of a central through hole 7c of the rotating body 7 to be described later and a substantially cylindrical thin shaft portion 6b slightly narrower than this. Are connected to each other in the axial direction on the same axis via a step portion 6c. Further, the flat shaft 6d has a flat surface 6d on the tip side of the thick shaft portion 6a opposed to the flat shaft 6a, and the flat surface 6d has a D-shaped cross section on the tip side so that the arc-shaped portion 6e and the straight portion 6f are formed. The knob attaching part 6g which has is provided. A hollow central recess 6h that is recessed from the end face in the axial direction is formed on the tip end side of the knob mounting portion 6g.

  Moreover, the hollow center recessed part 6h is provided over the whole knob attaching part 6g except the column-shaped thick shaft part 6a of the rotating shaft 6. FIG. That is, the hollow central recessed portion 6h is a rotation projecting outward from the bearing portion 9b except for a part of the thick shaft portion 6a that is supported by the bearing portion 9b of the mounting plate 9 whose rotation shaft 6 will be described later. The knob 6 is provided on the knob mounting portion 6g on the tip end side of the shaft 6. Then, an exterior operation knob 10 (indicated by a two-dot chain line in FIG. 3) is attached to the tip of this knob attachment portion 6g, and the rotary shaft 6 is rotated.

  Then, by providing a hollow central recess 6h on the tip side of the rotary shaft 6 to which the exterior operation knob 10 is attached, there is little dimensional change due to shrinkage during synthetic resin molding (natural cooling) and rotation. The dimension of the shaft 6 can be formed with high accuracy, and the reliability and workability of attaching the operation knob 10 can be improved. Further, the central recess 6h is provided on the distal end side of the rotating shaft 6 projecting outward from the bearing portion 9b with a depth such that the rotating shaft 6 does not reach the portion supported by the bearing portion 9b. Therefore, since there is no hollow recess in the portion where the rotating shaft 6 is supported by the bearing portion 9b, the bearing strength of the rotating shaft 6 to the bearing portion 9b can be increased.

  The hollow central recess 6h is provided with an inner wall 6i that divides the central recess 6h into approximately two equal parts at positions passing through the axis of the rotary shaft 6. Further, the inner wall portion 6i is provided between the opposed inner side surfaces of the central recess 6h, and the inner wall portion 6i connects between the arc-shaped portion 6e and the linear portion 6f having a D-shaped cross section. It is provided as follows. The inner wall portion 6i is formed at a recessed position in the axial direction from the end surface on the distal end side of the knob mounting portion 6g, and the rotary shaft 6 is formed on the recessed distal end side of the inner wall portion 6i. A gate (not shown) is provided.

  As described above, the inner recessed portion 6h of the rotating shaft 6 is provided with the inner wall portion 6i at a position passing through the axis of the rotating shaft 6, and the inner recessed portion 6h is provided between the opposing inner side surfaces of the central recessed portion 6h to divide the central recessed portion 6h. Thus, the size of the central recess 6h can be reduced individually, and the overall strength of the rotating shaft 6 can be increased. Further, even if the cross section on the tip side of the rotating shaft 6 is formed in a D-shape, the inner wall portion 6i is provided so as to connect between the arc-shaped portion 6e and the linear portion 6f. Even if the mounting portion of the knob 10 has a linear engaging portion that is easily deformed, the inner wall portion 6i is connected to the arc-shaped engaging portion that is difficult to deform. The strength can be maintained.

  Further, the inner wall 6i is formed at a position recessed from the end surface on the front end side of the rotating shaft 6, and by setting the recessed front end side of the inner wall 6i as a gate position at the time of molding of the rotating shaft 6, The gate position can be prevented from appearing on the outer peripheral portion of the rotating shaft 6, and the attachment property with the operation knob 10 can be improved. Further, it is possible to prevent the weld from being generated on the distal end side (knob attachment portion 6g) of the rotating shaft 6 and to increase the strength.

  Further, on the distal end side of the thin shaft portion 6b facing the knob mounting portion 6g of the rotating shaft 6, a protruding portion that protrudes outward in a direction (radial direction) orthogonal to the axial direction of the rotating shaft 6 6j is provided. A pair of the protruding portions 6j are provided at positions facing each other across the rotation center of the rotating shaft 6. And this protrusion part 6j engages with the engaging recessed part 7e of the rotary body 7 mentioned later, and the rotating shaft 6 and the rotary body 7 are accommodated in the case 1, and are arrange | positioned rotatably. ing.

  Further, a projection 6k protruding in the axial direction is provided on the end face on the distal end side of the thin shaft portion 6b. The protrusion 6k is arranged in a state of being in contact with the top of the dome-shaped bulged portion 4a of the movable contact 4. When the rotary shaft 6 is pressed in the axial direction, the protrusion 6k presses the bulging portion 4a of the movable contact 4 by the movement of the thin shaft portion 6b in the axial direction, and reverses the bulging portion 4a. The push switch is turned on by making contact with the central fixed contact 2a (contact portion 2c) of the fixed contact 2 arranged in the above.

  At this time, since the cylindrical jetty portion 1f is provided on the outer periphery of the first storage portion 1g in which the movable contact 4 is stored, the insulation between the peripheral fixed contact 2b and the conductive pattern 3 of the rotation detection pattern is provided. Guide hole 1j and 1k through which the first and second connecting portions 2e and 2f are exposed are formed in the cylindrical jetty portion 1f that holds the movable contact 1, and thus the guide hole 1j, 1k can be used to release the air in the dome-shaped movable contact 4 to the outside of the tubular jetty portion 1f, so that the operation such as reversal of the movable contact 4 accompanying the pressing operation is ensured, and the switch contact Reliability is improved.

  The rotating body 7 is also made of an insulating material such as synthetic resin, and has a cylindrical guide tube portion 7a and a disc-shaped rotating plate portion 7b. Further, the rotating body 7 is provided with a central through hole 7c penetrating in the axial direction of the rotary shaft 6. The central through hole 7c is continuous with the central through hole 7c and is a protruding portion of the rotary shaft 6. A through recess 7d through which 6j can be inserted is provided. Moreover, while having a predetermined angle with respect to the rotation center of this penetration recessed part 7d and the rotating shaft 6, in the front side which the rotating shaft 6 protrudes from the bearing part 9b and the rotary body 7, ie, the cylindrical guide cylinder part 7a side. An engaging recess 7e having a bottomed locking wall portion 7f is provided. In the present embodiment, the through recess 7d and the engagement recess 7e are formed in a substantially orthogonal direction (approximately 90 degrees).

  Further, a pair of penetrating recesses 7d and engaging recesses 7e are provided at positions facing each other so as to correspond to the pair of protrusions 6j and 6j of the rotating shaft 6. The thin shaft portion 6 b of the rotating shaft 6 is inserted into the central through hole 7 c from the front side of the guide tube portion 7 a of the rotating body 7, and the pair of projecting portions 6 j and 6 j of the rotating shaft 6 are connected to the rotating body 7. The pair of penetrating recesses 7d and 7d are inserted. When the rotary shaft 6 is rotated by a predetermined angle (approximately 90 degrees in the present embodiment) from the inserted state, the pair of protrusions 6j and 6j of the rotary shaft 6 are at a predetermined angle with the through recesses 7d and 7d. Rotate to the position of a pair of engaging recesses 7e, 7e provided to engage with the pair of engaging recesses 7e, 7e while being able to be locked to the pair of locking wall portions 7f, 7f. It has become a thing.

  When the thin shaft portion 6b of the rotating shaft 6 is inserted into the central through hole 7c of the rotating body 7 and the pair of protruding portions 6j and 6j are engaged with the engaging recesses 7e and 7e, the rotating body 7 is A pair of protrusions 6j, 6j of the rotating shaft 6 is provided so as to be movable in the axial direction of the rotating shaft 6 in the engaging recesses 7e, 7e. For this reason, the push operation of the push switch and the rotation operation of the rotation detection means are possible with a simple configuration.

And since the protrusion part 6j of the rotating shaft 6 engages reliably with the engaging recessed part 7e of the rotating body 7, and the rotating shaft 6 is hold | maintained integrally with the rotating body 7, the rotating shaft 6 is large force. Even when pulled, the protruding portion 6j abuts against the locking wall portion 7f of the rotating body 7, so that the protruding portion 6j does not come out and the pulling strength of the rotating shaft 6 can be improved.
The rotating body 7 has a cylindrical guide tube portion 7a and a disc-shaped rotation plate portion 7b, and a locking wall portion 7f of the engaging recess 7e is formed on the guide tube portion 7a side. As a result, the thickness of the locking wall portion 7f can be increased, so that the rotation shaft 6 can be more reliably prevented from coming off.

  Further, a pair of protrusions 6j of the rotating shaft 6 are provided at positions facing each other across the rotation center of the rotating shaft 6, and the through recess 7d and the engaging recess 7e of the rotating body 7 engaged with the pair of protrusions 6j, 6j. And a pair of protrusions 6j, 6j corresponding to the pair of projecting portions 6j, 6j, so that the rotation of the rotating shaft 6 can be reliably transmitted to the rotating body 7 and stable rotation operation is possible. In addition, since it can be assembled even if the rotary shaft 6 is rotated 180 degrees, assembly is facilitated and workability is improved.

  When the rotary shaft 6 is pressed in the axial direction, the projection 6k presses the bulging portion 4a of the movable contact 4 to turn on the push switch disposed below. At this time, the engagement dimension (L1) in the axial direction of the engagement surface where the pair of protrusions 6j, 6j of the rotating shaft 6 and the pair of engaging recesses 7e, 7e of the rotating body 7 engage with each other is determined by the push switch. The operation stroke, that is, the protrusion 6k of the rotating shaft 6 is formed to be larger than the stroke (L2) for turning the fixed contact 2 on by reversing the bulging portion 4a of the movable contact 4 (L1> L2). (See Figure 4)

  Thus, in this embodiment, the rotary shaft 6 is provided so as to be movable in the axial direction, and is provided with a push switch that is operated by pressing the rotary shaft 6, and the protruding portion 6 j of the rotary shaft 6 and the rotating body are provided. Since the engagement dimension (L1) in the axial direction of the engagement surface with which the engagement recesses 7e of 7 are engaged with each other is formed larger than the operation stroke (L2) of the push switch, the pressing operation of the push switch Even when the projection 6j of the rotating shaft 6 is not detached from the engaging recess 7e of the rotating body 7, the coupling between the rotating shaft 6 and the rotating body 7 can be ensured.

  In addition, on the upper surface side (the guide tube portion 7a side) of the rotating plate portion 7b of the rotating body 7, a click cam portion 7g composed of a plurality of concave and convex portions is provided in an annular shape so as to surround the guide tube portion 7a. The click cam portion 7g is in sliding contact with the click leaf spring 8, so that a click feeling during rotation can be obtained. In addition, a plurality of boss portions 7h (three in this embodiment) are provided in the circumferential direction at the outer side of the central through hole 7c on the lower surface side (the side opposite to the guide tube portion 7a) of the rotating plate portion 7b. The round hole of the mounting piece 5b of the slider 5 is inserted into the boss portion 7h, and is fixed by a method such as caulking so that it can be integrally rotated with the rotating body 7.

  The leaf spring 8 is made of an elastic thin metal plate, and has a ring-shaped spring portion 8a having a large opening, and a pair of substantially U-shaped fittings provided at opposing positions on the outer peripheral portion of the spring portion 8a. Part 8b, 8b. In the leaf spring 8, the rotating shaft 6 and the guide cylinder portion 7a of the rotating body 7 are inserted through the opening, and the bulging portion at the center of the spring portion 8a is in contact with the click cam portion 7g of the rotating plate portion 7b of the rotating body 7. A pair of fitting portions 8b and 8b are fitted and positioned in a pair of recessed grooves 1d and 1d and protrusions 1e and 1e formed on the upper surface side of the storage portion 1a of the case 1 in a contacted state. It is supposed to be

  The mounting plate 9 that constitutes the housing together with the case 1 is made of a metal plate material such as a tinned steel plate, and is extended upward by drawing or the like at the center of the upper plate portion 9a and the upper plate portion 9a. A cylindrical bearing portion 9b having a large opening that rotatably supports (guides) the thick shaft portion 6a of the shaft 6 and the guide tube portion 7a of the rotating body 7, and the bearing portion 9b at the rectangular portion of the upper plate portion 9a. It has a plurality of fixed leg portions 9c, 9c that are bent and suspended in opposite directions, and a pair of attachment leg portions 9d, 9d that are also bent and suspended from a pair of opposite side portions. The pair of mounting legs 9d, 9d is provided with a first mounting hole 9e in the vicinity of the bent portion with respect to the upper plate portion 9a. The first mounting hole 9e is continuously provided in the vicinity of the second mounting hole 9f. Is provided.

  The mounting plate 9 has a cylindrical bearing portion 9b through which the rotating shaft 6 and the guide cylinder portion 7a of the rotating body 7 are inserted, and the fitting portion 8b of the leaf spring 8 between the housing 1a and the upper surface side of the case 1. The pair of mounting legs 9d, 9d are engaged with a pair of guide grooves 1b, 1b provided on the opposite outer surfaces of the case 1, and the projecting piece 1e is in the first mounting hole 9e. And the locking projection 1c is locked to the second mounting hole 9f, positioned, and engaged, so that the mounting plate 9 covers the opening-shaped storage portion 1a of the case 1. It is supposed to be attached.

  When the rotary shaft 6 is rotationally operated via the operation knob 10 in the rotary electric component configured as described above, the rotating body 7 rotates integrally due to the engagement between the protruding portion 6j and the engaging recess 7e. Then, the contact portions 5 d of the contact pieces 5 c of the slider 5 are in sliding contact with the conductive pattern 3. When a pressing force in the axial direction is applied to the rotating shaft 6, the rotating shaft 6 moves while being guided by the rotating body 7, and the protrusion 6k presses the movable contact 4 so that the push switch is turned on. To do.

  According to the embodiment of the present invention described above, the conductive portions of the first and second intermittent patterns 3a and 3b constituting the rotation detection pattern, the common pattern 3c, the central fixed contact 2a constituting the fixed contact and the peripheral fixed The contact 2b is stamped from the same metal plate and is embedded in the case 1 while being insulated from each other. The first connecting portion 2e that connects the central fixed contact 2a and the external terminal 2g, the peripheral fixed contact 2b, and others The second connecting portion 2f that connects the external terminal 2h is formed between the conductive portion of the first intermittent pattern 3a, the conductive portion of the second intermittent pattern 3b, and the common pattern 3c that constitute the rotation detection pattern. Since the three gaps are formed in two different places, the first intermittent pattern 3a, the second intermittent pattern 3b, the common pattern 3c of the rotation detection pattern, and the pressing operation detection Since the central fixed contact 2a and the peripheral fixed contact 2b are electrically separated from each other, the circuit can be used independently at the time of rotation and pressing operation. Since there are three contact portions 5d of the slider 5, stable contact can be obtained and miniaturization is possible.

FIGS. 10-13 has shown the manufacturing process of case 1 of the rotary electrical component with a switch of this invention. The manufacturing method of case 1 is demonstrated using these figures.
First, as shown in FIG. 10, a metal plate 11 having a hoop-like belt shape is subjected to press working, and a fixed contact 2 (2a, 2b) for detecting a pressing operation and a conductive pattern 3 (3a, 3b, 3c) and the external processing of the external terminals 2g, 2h and 3f, 3g, 3h. In this outer shape processing, drilling of intermittent portions 3d and 3e filled with a resin material at the time of insert molding described later is also performed at the same time. In conjunction with this pressing process, the external terminals 2g, 2h, 3f, 3g, and 3h are protruded in the plate thickness direction, and the ribs 2i and 3i are projected along the extending direction of the external terminals. . At this time, the fixed contact 2 (2a, 2b) and the conductive pattern 3 (3a, 3b, 3c) are connected and connected.

  Next, as shown in FIG. 11, the fixed contact 2 and the conductive pattern 3 connected in FIG. 10 are separated by press working, and the respective central fixed contact 2a, peripheral fixed contact 2b, and first intermittent pattern are separated. 3a, the second intermittent pattern 3b, and the common pattern 3c are formed independently. In this case, the reason why the fixed contact 2 and the conductive pattern 3 are not separated at a stretch by a single press work is to prevent the fixed contact 2 having a narrow width and its connecting portion from being deformed.

  And the center fixed terminal 2a is connected with the external terminal 2g by the 1st connection part 2e, and the other end side of the external terminal 2g is connected with the metal frame 11a of the metal plate 11 formed in the strip | belt shape. The peripheral fixed contact 2b is connected to the external terminal 2h by the second connecting portion 2f, and the other end of the external terminal 2h is connected to the metal frame 11a of the metal plate 11. At this time, the first connecting part 2e is located in the gap between the first and second intermittent patterns 3a and 3b, and the second connecting part 2f is between the second intermittent pattern 3b and the common pattern 3c. It is located in the gap.

  The first intermittent pattern 3a is connected to the external terminal 3f at the center, the other end of the external terminal 3f is connected to the metal frame 11a, and one end of the conductive portion made of a metal plate is connected to the crosspiece 11b. Is connected to the metal frame 11a. Similarly, the second intermittent pattern 3b is connected to the external terminal 3g at the center, the other end of the external terminal 3g is connected to the metal frame 11a, and both ends of the conductive portion made of a metal plate are connected to each other. It is connected with the metal frame 11a by 11b and 11c. The common pattern 3c is connected to the external terminal 3h at one end, the other end of the external terminal 3h is connected to the metal frame 11a, and the center is connected to the metal frame by a pair of connecting bars 11d and 11d. Has been.

  Next, as shown in FIG. 12, the first connecting portion 2e and the second connecting portion 2f, which are connected to the central fixed contact 2a and the peripheral fixed contact 2b, are bent (see FIG. 8), and conductive for detecting rotation. By providing a level difference between the pattern 3 (3a, 3b, 3c) and the fixed contact 2 (2a, 2b), the central fixed contact 2a and the peripheral fixed contact 2b are moved in the radial direction on the external terminals 2g, 2h side. Thereby, the planar position of the conductive pattern 3 (3a, 3b, 3c) and the fixed contact 2 (2a, 2b) is determined, and the position of each contact part 2c, 2d is set to an appropriate position.

Further, in this step, by providing a step between the rotation detection conductive pattern 3 (3a, 3b, 3c) and the fixed contact 2 (2a, 2b), the first of the central fixed contact 2a and the peripheral fixed contact 2b is provided. The gap in the vertical direction between the connecting portion 2e and the second connecting portion 2f and the conductive pattern 3 (3a, 3b, 3c) for rotation detection is increased so that the molten resin easily flows in the case molding.
At the same time, protrusion processing is performed at the center of the center fixed contact 2a and the arcuate center of the peripheral fixed contact 2b and at three locations on both end sides to form the contact portion 2c and the three contact portions 2d.

  Next, as shown in FIG. 13, the band-shaped metal plate 11 is mounted in a molding die (not shown), and the fixed contacts 2 (2a, 2b), the connecting portions (2e, 2f), and the conductive pattern 3 (3a). 3b, 3c), etc., with a guide pin (not shown) in the mold and the like positioned and filled, molten resin is filled into the mold cavity and insert molding is performed, and the fixed contact is made on the resin material. 2 (2a, 2b), connecting portions (2e, 2f), and conductive patterns (3a, 3b, 3c) are embedded to form case 1. In this insert molding process, the molten resin also flows into the holes of the intermittent portion 3d of the first intermittent pattern 3a and the intermittent portion 3e of the second intermittent pattern 3b, and the intermittent portions 3d and 3e are made of a resin material. Become.

  Next, from this state, a portion where each of the external terminals 2g, 2h, 3f, 3g, and 3h is connected to the metal frame 11a is cut with a punch, and a root portion extending from the case 1 is moved downward (of the case 1). Bend to the bottom direction. At this time, the case 1 is connected to the metal frame 11a by a plurality of connecting bars 11b, 11c, and 11d. Finally, by cutting the connecting bars 11b, 11c, and 11d, which are connecting parts to the metal frame 11a, with a punch, a single case 1 as shown in FIG. 5 is completed.

  According to the manufacturing method of the present invention described above, the central fixed contact 2a and the peripheral fixed are provided by providing a step in the conductive pattern 3 (3a, 3b, 3c) for rotation detection and the fixed contact 2 (2a, 2b). The gap in the vertical direction between the first connecting part 2e and the second connecting part 2f of the contact 2b and the conductive pattern 3 (3a, 3b, 3c) for rotation detection is increased, so that the molten resin at the time of molding the case easily flows. Therefore, the rotation detection conductive pattern 3 (3a, 3b, 3c) arranged in an annular shape and the rotation detection conductive pattern 3 (3a, 3b, 3c) are provided inside. The center and peripheral fixed contacts 2a and 2b for detecting the pressing operation can be easily embedded in the case in a state of being reliably electrically insulated from each other.

In addition, since the first and second connecting portions 2e and 2f of the fixed contact 2 (2a and 2b) are constituted by a part of the external terminals 2g and 2h, the external terminals 2g and 2h of the fixed contact 2 are connected to the metal frame 11a. As a connecting portion, a connecting portion having a predetermined width can be positioned between the patterns without affecting the conductive pattern 3 for detecting rotation, and the molten resin is surely poured between them to ensure insulation. be able to.
Further, pressing is performed in a state where the rotation detecting conductive pattern 3 is connected to the center and peripheral fixed contacts 2a and 2b, and then the rotation detecting conductive pattern 3 and the center and peripheral fixed contacts 2a and 2b are separated. Therefore, deformation of each fixed contact 2 (2a, 2b) can be prevented.

It is a disassembled perspective view which shows the rotary electrical component with a switch of this invention. It is a top view which shows the rotary electrical component with a switch of this invention. It is a front view which shows the rotary electrical component with a switch of this invention. It is sectional drawing which shows the rotary electric component with a switch of this invention. It is a top view which shows the case of this invention. It is a top view of the case which shows the embedding state of the pattern for rotation detection of this invention, and a fixed contact. It is sectional drawing in the 7-7 line | wire of FIG. 6 of this invention. It is sectional drawing in the 8-8 line | wire of FIG. 6 of this invention. It is a top view which shows the slider of this invention. It is a top view which shows the manufacturing process of the case of this invention. It is a top view which shows the manufacturing process of the case of this invention. It is a top view which shows the manufacturing process of the case of this invention. It is a top view which shows the manufacturing process of the case of this invention. It is front sectional drawing which shows the conventional rotary electrical component with a switch. It is sectional drawing in the 15-15 line of the conventional FIG. It is a top view which shows the conventional movable elastic contact. It is a top view which shows the metal plate which stamped the conventional fixed contact part.

Explanation of symbols

1: Case (housing)
DESCRIPTION OF SYMBOLS 1a: Storage part 1b: Guide groove 1c: Locking protrusion 1d: Concave groove 1e: Projection piece 1f: Jetty part 1g: First storage part 1h: Second storage part 1i: Projection surface part 1j: Guide hole (hole)
1k: Guide hole (hole)
1l: Pin hole 2: Fixed contact 2a: Center fixed contact 2b: Peripheral fixed contact 2c: Contact part 2d: Contact part 2e: First connection part 2f: Second connection part 2g: External terminal 2h: External terminal 2i: Rib 3 : Conductive pattern 3a: first intermittent pattern 3b: second intermittent pattern 3c: common pattern 3d: intermittent portion (insulating portion)
3e: Intermittent part (insulating part)
3f: external terminal 3g: external terminal 3h: external terminal 3i: rib 4: movable contact 4a: bulging part 4b: outer peripheral edge part 5: slider 5a: base part 5b: mounting piece 5c: contact piece 5d: contact part 6 : Rotating shaft 6a: Thick shaft portion 6b: Fine shaft portion 6c: Step portion 6d: Flat surface 6e: Arc-shaped portion 6f: Linear portion 6g: Knob mounting portion 6h: Central recessed portion 6i: Inner wall portion 6j: Protruding portion 6k: Projection 7: Rotating body 7a: Guide tube portion 7b: Rotating plate portion 7c: Central through hole 7d: Through recess 7e: Engaging recess 7f: Locking wall portion 7g: Cam portion 7h: Boss portion 8: Leaf spring 8a: Spring Part 8b: Fitting part 9: Mounting plate (housing)
9a: Upper plate portion 9b: Bearing portion 9c: Fixed leg portion 9d: Mounting leg portion 9e: First mounting hole 9f: Second mounting hole 10: Operation knob 11: Metal plate 11a: Metal frame 11b: Connecting bar 11c: Connecting Pier 11d: connecting pier

Claims (6)

A rotating shaft capable of rotating and pressing, a slider rotating with the rotation of the rotating shaft, a movable contact displacing with the pressing operation of the rotating shaft, and an annular rotation detection with which the slider slides. A case provided with a fixed contact for detecting a pressing operation provided inside the pattern for rotation and the rotation detection pattern and facing the movable contact, and the case connected to the pattern for rotation detection or the fixed contact, respectively. A plurality of external terminals extending in the direction, and the slider has contact portions at three positions at equiangular intervals, and the rotation detection pattern is rotated along with the rotation shaft. Arc-shaped first intermittent patterns in which conductive portions and insulating portions that are in sliding contact with each other are alternately formed, and conductive portions and insulating portions in which the contact portions are in sliding contact with a phase difference between the first intermittent patterns. Arc-shaped second intermittent formed on A turn and an arc-shaped common pattern made of a conductive portion disposed between the first and second intermittent patterns, and the fixed contact is located at the center of the rotation detection pattern and the rotation shaft A rotary electric component with a switch having a central fixed contact that contacts the movable contact in accordance with the pressing operation and a peripheral fixed contact located outside the central fixed contact, wherein the first and second intermittent patterns The conductive portion, the common pattern, the central fixed contact and the peripheral fixed contact are stamped from the same metal plate and embedded in the case while maintaining an insulating state, and the central fixed contact and the external terminal A first connecting portion connecting the peripheral fixed contact and the other external terminal, and a second connecting portion connecting the peripheral fixed contact and the other external terminal. The rotation detection pattern is formed at two different positions among the three gaps formed between the conductive portion of the second intermittent pattern and the common pattern, respectively. The surface of the intermittent pattern and the common pattern are exposed and embedded on the inner bottom surface of the case, and the first and second connecting portions are moved from the surface position of the rotation detection pattern to the bottom surface side of the case. It is bent with a step and embedded in the inner bottom of the case, and the inner bottom surface of the case is provided with holes through which the surfaces of the first and second connecting portions are exposed, and the peripheral fixed contact and the rotation A rotating electrical component with a switch, characterized in that it has a cylindrical jetty portion that accommodates the movable contact between the detection pattern and the hole is located in the jetty portion.   The fixed contact for detecting a pressing operation provided on the inside of the rotation detection pattern is a surface of the rotation detection pattern, and the exposed surface of the central fixed contact and the peripheral fixed contact is exposed from the inner bottom surface of the case. 2. The rotating electrical component with a switch according to claim 1, wherein the rotating electrical component is provided at a position lower than the exit surface.   The first and second connection parts are formed wide on the side connected to the external terminal, ribs are provided on the wide part, and the first and second connection parts are provided together with the base end of the wide part. The rotating electrical component with a switch according to claim 1 or 2, wherein the rotating electrical component is embedded in the case.   A rotation shaft that can be rotated and pressed, a slider that rotates as the rotation shaft rotates, and an arc-shaped first intermittent pattern, a second intermittent pattern, and a common pattern that are in sliding contact with the slider. A case in which a rotation detection pattern and a center and a peripheral fixed contact for detecting a pressing operation provided inside the rotation detection pattern are embedded in an electrically insulated state from each other; and the center and the peripheral fixed contact A rotating electrical component with a switch provided with a movable contact that conducts between the two fixed contacts by pressing the rotating shaft, and by pressing a single metal plate, Separating the rotation detection pattern and the center and peripheral fixed contacts while being connected to the metal frame by connecting portions, respectively, and the center and peripheral fixed contacts and the metal frame, respectively. Forming the step by varying the height of the formation surface of the center and peripheral fixed contacts and the formation surface of the rotation detection pattern by bending the connecting portion of the metal plate, and forming the metal plate By mounting in the mold and filling the cavity with molten resin, a part of each of the connecting portions, between the first intermittent pattern, the second intermittent pattern and the common pattern of the rotation detection pattern The step of embedding the intermittent portions of the first and second intermittent patterns integrally in resin to form the outer shape of the case, and cutting the connecting portion between the case and the metal frame of the metal plate Forming the case, and when the metal plate is mounted in the molding die and the molten resin is filled in the cavity, the tubular jetty portion for housing the movable contact is formed at the formation position. Corresponding multiple holding pins Inserting and guiding the positioning surfaces of the connecting portions of the central and peripheral fixed contacts by these holding pins, and providing holes for exposing the surface of the connecting portion to the pier portion by the pressing pin marks. A method of manufacturing a rotary electrical component with a switch, characterized in that   The connecting portions of the center and peripheral fixed contacts and the metal frame are different from each other in gaps formed between the first intermittent pattern, the second intermittent pattern, and the common pattern of the rotation detection pattern. 5. The method of manufacturing a rotary electrical component with a switch according to claim 4, wherein the rotating portion is located at two locations and the connecting portion is constituted by a part of an external terminal.   The step of separating the rotation detection pattern and the center and peripheral fixed contacts while being connected to the metal frame by a connecting portion is connected to the rotation detection pattern and the center and peripheral fixed contacts. 6. The method of manufacturing a rotary electrical component with a switch according to claim 4, further comprising a step of performing press working and a step of separating the rotation detection pattern from the center and peripheral fixed contacts.

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