JP3853310B2 - Multi-input type electrical components - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multi-input electrical component suitable for use in radios, CD recorders, automobile navigations, and the like, and in particular, two types of components having different operation modes, ie, a rotary electrical component and a push switch, are used as one operating member. It is related with the multi-input type electric component operated by.
[0002]
[Prior art]
A conventional multi-input type electrical component is disclosed in Japanese Patent Laid-Open No. 8-203387.
[0003]
As shown in FIGS. 8 to 11, this multi-input type electrical component operates the rotary electrical component R by rotating the operating member S, and also operates the operating member S in a direction perpendicular to the axial direction. The push switch P is operated by moving the switch to the position.
[0004]
The rotating electrical component R fixes a contact body 50 having a pair of sliding contact pieces 50a and 50b to a box-shaped case 51, and the box-shaped case 51 is slid with the sliding contact piece 50a. A rotating body 53 to which a contact plate 52 in contact is fixed is rotatably attached by a shaft 54.
[0005]
Further, the push switch P has a configuration in which a contact portion (not shown) is provided in the housing 55 and an operation button 56 movably attached to the housing 55 is provided.
[0006]
Further, as shown in FIG. 11, the flat insulating substrate 58 is provided with a recess 58a for guiding the rotary electrical component R and on both sides of the recess 58a to prevent the rotary electrical component R from coming off. A pair of rails 58b, a recess 58c spaced from the recess 58a, and a protrusion 58d are provided.
[0007]
Further, a fixed contact 59 is embedded in the insulating substrate 58 so as to be exposed in the recess 58a.
[0008]
Then, the case 51 of the rotary electrical component R is placed in the concave portion 58a of the insulating substrate 58, and the rail 58b is brought into contact with the stepped portion 51a of the case 51, and the torsion that is latched on the projection 58d. The rotary electric component R is attached to the insulating substrate 58 by elastically compressing the case 51 with the spring 60.
[0009]
When the rotating electrical component R is attached, the sliding contact piece 50b is in contact with the exposed contact 59a on the insulating substrate 58.
[0010]
Further, the push switch P is attached to the insulating substrate 58 in a state where the housing 55 of the push switch P is fitted in the recess 58 c of the insulating substrate 58 and the operation button 56 faces the protrusion 51 b of the case 51 of the rotary electrical component R. It is attached.
[0011]
Further, the operation member S is configured to be attached to the rotating body 53 of the rotary electric component R with a screw 61.
[0012]
Next, the operation of the conventional multi-input type electric component will be described. First, when the operation member S is rotated, the rotating body 53 rotates around the shaft 54 along with the rotation.
[0013]
Then, the contact plate 52 attached to the rotating body 53 is also rotated to contact and separate from the sliding contact piece 50a, and the contact is switched, and this switching is performed via the sliding contact piece 50b and the contact 59a. To be derived.
[0014]
Next, when the operating member S is pressed in a direction perpendicular to the axial direction of the shaft 54, that is, in the direction of the arrow Y, the operating member S is accompanied by the rotary electric component R and the arrow against the torsion spring 60. Move in the Y direction.
[0015]
At this time, the sliding contact piece 50b slides on the contact 59a of the fixed contact 59 to maintain the electrical connection of the rotary electrical component R, and the projection 51b of the case 51 is operated by the operation button of the push switch P. 56 is pressed.
[0016]
Then, switching of the contacts of the push switch P is performed. After that, when the pressing of the operating member S is released, the rotary electrical component R is moved to the state before the pressing with the operating member S by the torsion spring 60.
[0017]
At this time, the sliding contact piece 50b slides on the contact 59a to maintain the electrical connection of the rotary electrical component R, and the operation button 56 returns to the state before pressing, and the contact of the push switch P is switched. Is done.
[0018]
In this way, the rotary electrical component R is operated by rotating the operation member S, and the push switch P is operated by moving the operation member S in a direction perpendicular to the axial direction.
[0019]
[Problems to be solved by the invention]
However, since the conventional multi-input type electrical component described above operates the two components of the rotary electrical component R and the push switch P by the operation member S, it is not possible to switch a large number of switches. There is a problem.
[0020]
In addition, when the operating member S is moved in a direction perpendicular to the axial direction and the push switch P is operated, the rotary electrical component R moves together with the operating member S, so that the space factor is poor and the size becomes large. There is.
[0021]
Further, in order to maintain the electrical connection of the rotary electrical component R during the movement of the rotary electrical component R, a configuration in which the sliding contact piece 50b is slidably contacted with the fixed contact 59 is required. In addition, there is a problem in that it is difficult to achieve this, and the configuration is cumbersome and expensive.
[0022]
The present invention has been made in view of such a state of the art, and an object of the present invention is to provide a multi-input type electrical component that is suitable for downsizing and extending the life and can be simplified in configuration.
[0023]
[Means for Solving the Problems]
In order to achieve the above object, a multi-input electrical component according to the present invention includes a rotating electrical component, a shaft member that rotates the rotating electrical component, and a cylindrical shape having an insertion hole through which the shaft member is inserted. An operation member and a push switch disposed opposite to the outer peripheral surface of the operation member, and an engagement portion is formed at a central portion of the insertion hole, and the operation member is the shaft member with the engagement portion as a fulcrum. And the rotation force of the operation member is transmitted to the shaft member via the engagement portion, and the push switch is pressed in accordance with the seesaw operation of the operation member. Configured to be.
[0024]
In the multi-input type electrical component configured as described above, the rotational electrical component is rotated by transmitting the rotational force of the operating member to the shaft member via the engaging portion, and the operating member is moved to the engaging portion. Since the push switch is pushed by the seesaw operation at the fulcrum, the rotary electric parts and push switches having different operation modes can be operated by the rotation operation and the seesaw operation of one operation member. Since the entire rotating electrical component does not move during the seesaw operation, it is possible to provide a compact device with a good space factor. Further, since the rotating electrical parts do not move, the conventional sliding contact piece and the fixed contact are not required, the life can be extended, and the structure can be simplified to provide an inexpensive one.
[0025]
In the above configuration, when the insertion hole is configured to have a mortar shape that gradually increases outward from the engagement portion as a boundary, insertion of the shaft member into the engagement portion is facilitated, and assembly is improved. Productivity.
[0026]
Further, in the above configuration, when the operating member is held by the driving body with the upper surface opened, and a protrusion that presses the push switch is provided on the lower surface of the driving body, it is possible to give flexibility to the location of the push switch. it can.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional front view of an essential part of a multi-input electrical component according to an embodiment of the present invention, and FIG. FIG. 3 is a sectional side view taken along line BB in FIG. 1, FIG. 4 is an exploded perspective view of the multi-input type electrical component, and FIGS. 5, 6, and 7 are diagrams of the multi-input type electrical component. It is a principal part sectional front view for demonstrating operation | movement.
[0028]
A box-shaped case 1 made of a synthetic resin molded product and having an open top includes a rectangular bottom wall 1a and four side walls 1b, 1c, 1d, and 1e extending upward from the periphery of the bottom wall 1a. Have. Further, the case 1 is formed with a housing 2 integrally formed with the side wall 1b. The housing 2 includes a circular recess 2a, a storage portion 2b connected to the recess 2a, and the center of the recess 2a. The hole 2c provided in the part is provided. Further, the case 1 is provided with a long hole 1f opposed to the hole 2c on the side wall 1c opposed to the side wall 1b, and from the long hole at a position opposed to the central part of the opposite side walls 1d and 1e. The engaging portions 1g and 1h and the grooves 1k and 1m are provided.
[0029]
In addition, on the bottom wall 1a of the case 1, three switches S1, S2, S3 made of push switches having the same configuration are arranged at intervals.
[0030]
As shown in FIGS. 1 and 4, each of these switches S1, S2 and S3 has a ring-shaped fixed contact 3 and a central contact 4 embedded in the bottom wall 1a, and is made of a metal spring plate. The dome-shaped movable contact 5 is disposed in the concave portion 1j of the bottom wall 1a, and the periphery of the movable contact 5 is brought into contact with the fixed contact 3, and the central portion of the movable contact 5 is opposed to the contact 4. The fixed contact 3 and the contact 4 can be connected to the outside by the lead terminals formed integrally therewith. The movable contact 5 fitted in the recess 1j is held by an adhesive tape (not shown) such that it is attached together with the bottom wall 1a so as to cover the upper surface thereof. Thus, if the bottom wall 1a of the case 1 is also used as the case of the switches S1, S2, and S3, the number of parts can be reduced and an inexpensive one can be provided. However, the switches S1, S2, and S3 can be provided as needed. A unit that is assembled in a separate case may be used.
[0031]
Further, as shown in FIG. 4, the H-shaped return means 6 made of a metal spring plate is provided with a rectangular plate portion 6b having a hole 6a and bent downward at the four corners of the plate portion 6b. At the center of both sides of the spring part 6c and the plate part 6b, there are a pair of arm parts 6d bent upward and a hole 6e provided in the pair of arm parts 6d.
[0032]
The driving body 7 made of a synthetic resin molded product has a rectangular bottom wall portion 7b having three projecting portions 7a projecting downward, and a convex portion 7c on the outside, and the longitudinal direction of the bottom wall portion 7b. A pair of side wall portions 7d extending upward from the periphery, and a pair of side wall portions 7f having an arcuate receiving portion 7e at the top and extending upward from the short periphery of the bottom wall portion 7b are provided. The driving body 7 is positioned between the pair of arm portions 6 d of the return means 6 and is fitted so that the bottom wall portion 7 b overlaps the plate portion 6 b of the return means 6. Then, the convex portion 7c of the driving body 7 advances while pushing the pair of arm portions 6d outward, and when the convex portion 7c coincides with the hole 6e, the arm portion 6d returns to its original state due to the spring property, and the convex portion 7c. The portion 7c is locked through the hole 6e, and the drive body 7 and the return means 6 are combined. At this time, the plate portion 6 b of the return means 6 and the bottom wall portion 7 b of the drive body 7 are in contact with each other, and the slightly longer protrusion 7 a at the center of the lower surface of the drive body 7 is formed in the hole 6 a of the return means 6. The two protrusions 7a that protrude downward and penetrate both sides of the lower surface protrude downward from between the spring portions 6c.
[0033]
The return means 6 and the drive body 7 combined in this way are accommodated in the case 1, and the built-in configuration is as follows. First, the return means 6 is installed as shown in FIGS. With the convex portion 7c of the driving body 7 aligned with the grooves 1k and 1m of the case 1, the driving body 7 is pushed into the case 1 using the grooves 1k and 1m as a guide. Then, the spring portion 6c of the return means 6 comes into contact with the bottom wall 1a, and further, when the driving body 7 is pushed against the spring property of the spring portion 6c, the convex portion 7c becomes the locking portions 1g, 1h of the case 1. , The convex portion 7c opens outward, the convex portion 7c is locked by the locking portions 1g and 1h, and the driving body 7 and the return means 6 are attached to the case 1. The built-in driving body 7 is always pressed upward by the return means 6, and the driving body 7 is movable up and down within the locking portions 1g and 1h of the long holes. The seesaw operation is possible with the convex portion 7c as a fulcrum. When the driving body 7 is assembled, the three protrusions 7a provided on the bottom wall portion 7b face the movable contacts 5 of the switches S1, S2, S3, respectively, as shown in FIG. Each movable contact 5 can be driven by the protrusion 7a.
[0034]
The rotary electrical component R includes a rotary switch, a rotary encoder, and the like. The rotary electrical component R accommodates the rotary body 8 in a recess 2a of the housing 2 integral with the case 1 so as to be rotatable. Further, the detent spring 9 is accommodated in the accommodating portion 2b, and the cover 10 is attached to the case 1 so as to cover the open portion of the housing 2. The rotating body 8 includes a non-circular hole 8a provided in the center, a detent uneven portion 8b provided on the outer periphery, and a plurality of movable contacts 8c. The hole 8a is the housing 2. The detent spring 9 is brought into contact with the concavo-convex portion 8b so that the rotation of the rotating body 8 is moderated. Further, a fixed contact 10a is embedded in the cover 10 made of a synthetic resin molded product, the fixed contact 10a is brought into contact with the movable contact 8c, and the switching of the contact is pulled out to the outside by the fixed contact 10a. It consists of. Further, when the case 1 is also used as the casing 2 of the rotary electrical component R, it can provide a small number of components, a low cost and good assemblability, but the rotary electrical component R can be provided as a unit. The unitized one may be used and attached to the case 1.
[0035]
In addition, the cylindrical operation member 11 made of a synthetic resin molding or the like has a notch 11a provided on the outer circumferential surface thereof, an insertion hole 11b provided in the cylindrical axis direction, and the insertion hole 11b. It has a non-circular engaging portion 11c provided at the center in the cylindrical axis direction, and ring-shaped protrusions 11d provided at both ends. The insertion hole 11b has a mortar shape that gradually increases as it goes outward with the engaging portion 11c as a boundary. The insertion hole 11b may be formed by narrowing the portion of the engaging portion 11c and the other portion having the same size.
[0036]
Further, the non-circular shaft member 12 made of metal or the like has a cross-section formed in a rectangular shape, an oval shape, or the like, and has a non-circular and rounded end portion 12a, a non-circular intermediate portion 12b, The other end part 12c which provided the step part and made it the protrusion of a small diameter has. The shaft member 12 is inserted into the insertion hole 11b of the operation member 11 from the other end portion 12c side, and the other end portion 12c penetrates the insertion hole 11c. At this time, the non-circular intermediate portion 12b of the shaft member 12 matches the non-circular engaging portion 11c of the operation member 11, so that the rotational movement of the operation member 11 can be transmitted to the shaft member 12. Yes.
[0037]
Then, the shaft member 12 and the operation member 11 combined in this way are assembled in the case 1 in a state where the return means 6 and the driving body 7 are incorporated in the case 1. Then, it passes through the hole 2 c of the housing 2 and engages with the non-circular hole 8 a of the rotating body 8. Next, the protrusion 11d of the operation member 11 is aligned with the upper portion of the receiving portion 7e of the driving portion 7, and the other end portion 12c of the shaft member 12 is positioned above the elongated hole 1f of the side wall 1c. When the operating member 11 and the shaft member 12 are pushed into the case 1, the side wall 1c is bent outward at the other end portion 12c of the shaft member 12, and when the other end portion 12c coincides with the long hole 1f, the other end portion 12c is While being fitted in the long hole 1 f, the projecting portion 11 d of the operating member 11 is in contact with the arcuate receiving portion 7 e of the driving body 7. At this time, the operation member 11 is pressed upward by the pair of receiving portions 7e of the driving body 7 that is repressed by the return means 6, and therefore the shaft member 12 is pressed upward by the operation member 11 and the other end portion. 12c comes into contact with the upper end of the long hole 1f, and the shaft member 12 is attached in parallel with the bottom wall 1a.
[0038]
As a result, the operation member 11 can rotate about the shaft member 12 as a rotation axis, and resists the spring property of the return means 6 in the direction of the arrow H1 (see FIG. 5) that is substantially perpendicular to the rotation axis direction. Thus, the moving operation is possible, and the seesaw operation is possible with the engaging portion 11c as a fulcrum. When the operation member 11 is moved in a direction substantially perpendicular to the rotation axis direction, the shaft member 12 has the other end 12c as a long hole with the one end 12a engaged with the hole 8a of the rotating body 8 as a fulcrum. It moves downward within If and performs a tilting operation. Note that the engagement between the hole 8a of the rotating body 8 and the one end portion 12a of the shaft member 12 may be engaged by gear-like unevenness provided with a relief portion in the axial direction. In the multi-input electrical component assembled in this way, the rotary electrical component R is disposed in the rotational axis direction of the operating member 11, and the operating member is perpendicular to the rotational axis direction of the operating member 11. 11, the switches S 1, S 2, S 3 are arranged in a state of being opposed to 11.
[0039]
Next, the operation of the multi-input electrical component having the above-described configuration will be described based on FIGS. 1, 5, 6, and 7. FIG.
[0040]
First, in FIG. 1, when the operation member 11 is rotated about the shaft member 12 as a rotation axis, the shaft member 12 is rotated by the engaging portion 11c. Then, the rotating body 8 of the rotary electric component R engaged with the one end portion 12a of the shaft member 12 rotates with a click feeling by the concavo-convex portion 8b and the detent spring 9, and the movable contact 8c is fixed to the fixed contact 10a. The contact is switched and the rotary electrical component R is operated.
[0041]
Next, as shown in FIG. 5, when the operation member 11 is pressed in the direction of the arrow H <b> 1 in the central portion of the operation member 11 in a direction substantially perpendicular to the rotation axis direction of the operation member 11, the operation member 11 returns. It moves downward with the driving body 7 against the spring property of the means 6. Then, the long projecting portion 7a at the center presses the movable contact 5 of the first switch S1 located at the central portion, the movable contact 5 reverses and contacts the contact 4, and the fixed contact 3 and the contact 4 Is switched on to switch contacts. At this time, the shaft member 12 is tilted with the other end 12c moving downward in the long hole 1f with the one end 12a engaged with the hole 8a of the rotating body 8 as a fulcrum. Next, when the pressing of the operation member 11 in the direction of the arrow H1 is released, the drive unit 6, the operation member 11, and the shaft member 12 are returned to the original state by the return means 6 and the pressing to the movable contact 5 by the protrusion 7 a is performed. Since it is released, the movable contact 5 also reverses and returns to the original state, and the switch S1 is switched to the OFF state.
[0042]
Next, as shown in FIG. 6, the operation member 11 is moved in the direction of the arrow H <b> 2 in a direction substantially perpendicular to the rotation axis direction of the operation member 11 and on the right side of the center of the operation member 11 (side closer to the side wall 1 c). When pressed, the operating member 11 performs a seesaw operation with the engaging portion 11c as a fulcrum, and the drive body 7 also performs a seesaw operation with the convex portion 7c as a fulcrum against the spring property of the return means 6, and the protrusion 7a on the right side. Moves down. Then, the short projection 7a on the right side presses the movable contact 5 of the second switch S2 located on the right side, the movable contact 5 is reversed and contacts the contact 4, and the fixed contact 3 and the contact 4 are connected. The contact is switched by turning it ON. At this time, the shaft member 12 maintains a parallel state and does not tilt. Next, when the pressing of the operating member 11 in the direction of the arrow H2 is released, the drive unit 6 and the operating member 11 are returned to the original state by the return means 6, and the pressing of the projecting portion 7a to the movable contact 5 is released. The movable contact 5 is also reversed and returned to the original state, and the switch S2 is switched to the OFF state.
[0043]
Next, as shown in FIG. 7, the operation member 11 is moved in the direction of the arrow H3 in the direction substantially perpendicular to the rotation axis direction of the operation member 11 and on the left side of the central portion of the operation member 11 (side closer to the side wall 1b). When pressed, the operating member 11 performs a seesaw operation with the engaging portion 11c as a fulcrum as described above, and the driving body 7 also performs a seesaw operation with the convex portion 7c as a fulcrum against the spring property of the return means 6, The protrusion 7a on the left side moves downward.
[0044]
Then, the left short projection 7a presses the movable contact 5 of the third switch S3 located on the left side, the movable contact 5 reverses and contacts the contact 4, and the fixed contact 3 and the contact 4 are connected. The contact is switched by turning it ON. At this time, the shaft member 12 maintains a parallel state and does not tilt. Next, when the pressing of the operating member 11 in the direction of the arrow H3 is released, the drive unit 6 and the operating member 11 are returned to the original state by the return means 6 and the pressing of the projecting portion 7a to the movable contact 5 is released. The movable contact 5 is also reversed and returned to the original state, and the switch S3 is switched to the OFF state.
[0045]
Although a large number of switches can be switched by the operation as described above, when such a multi-input type electrical component is used for a radio, for example, the rotary electrical component R is used for manual channel selection, and the switch Using S1 as a memory, the selected station is memorized by the switch S1, the switch S2 is used for automatic channel selection by increasing the frequency, and the switch S3 is used for automatic channel selection by decreasing the frequency. The station that has been automatically selected can be used by storing it in the switch S1.
[0046]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0047]
The rotary electric component is rotated by transmitting the rotational force of the operating member to the shaft member via the engaging portion, and the push switch is pressed by performing a seesaw operation using the operating member as the fulcrum. Therefore, it is possible to operate the rotary electric component and the push switch having different operation modes by the rotation operation and the seesaw operation of one operation member, and the entire rotary electric component can be moved during the seesaw operation of the operation member. Therefore, it is possible to provide a small multi-input type electrical component having a good space factor. In addition, since the rotating electrical component does not move, the conventional sliding contact piece and the fixed contact are not required, the life can be extended, and the configuration can be simplified to provide an inexpensive multi-input electrical component.
[Brief description of the drawings]
FIG. 1 is a cross-sectional front view of an essential part of a multi-input electrical component according to an embodiment of the present invention.
2 is a cross-sectional side view taken along line AA in FIG.
FIG. 3 is a cross-sectional side view taken along line BB in FIG.
FIG. 4 is an exploded perspective view of the multi-input electrical component.
FIG. 5 is a cross-sectional front view of an essential part for explaining the operation of the multi-input electrical component.
FIG. 6 is a cross-sectional front view of an essential part for explaining the operation of the multi-input electrical component.
FIG. 7 is a cross-sectional front view of an essential part for explaining the operation of the multi-input electrical component.
FIG. 8 is a perspective view of a multi-input electrical component according to a conventional example.
FIG. 9 is a cross-sectional view of the main part of the multi-input electrical component.
FIG. 10 is a cross-sectional view of a main part of the multi-input electrical component.
FIG. 11 is a perspective view of an insulating substrate provided in the multi-input electrical component.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case 1a Bottom wall 1b, 1c, 1d, 1e Side wall 1f Long hole 1g, 1h Locking part 1j Recess 1k, 1m Groove 2 Housing 2a Recess 2b Storage part 2c Hole S1, S2, S3 Switch (push switch)
3 fixed contact point 4 contact point 5 movable contact point 6 return means 6a hole 6b plate part 6c spring part 6d arm part 6e hole 7 driving body 7a protrusion 7b bottom wall part 7c convex part 7d side wall part 7e receiving part 7f side wall part R rotating electric Component 8 Rotating body 8a Hole 8b Uneven portion 8c Movable contact 9 Spring 10 Cover 10a Fixed contact 11 Operation member 11a Notch portion 11b Insertion hole 11c Engagement portion 11d Projection portion 12 Shaft member 12a One end portion 12b Middle portion 12c Other end portion

Claims (3)

Rotating electrical component, shaft member for rotating the rotating electrical component, a cylindrical operating member having an insertion hole through which the shaft member is inserted, and a push switch disposed opposite to the outer peripheral surface of the operating member And
An engaging portion is formed in the central portion of the insertion hole, and the operating member is supported by the shaft member so as to perform a seesaw operation with the engaging portion as a fulcrum, and the rotational force of the operating member causes the engaging portion to The multi-input type electrical component is configured such that the push switch is pressed in accordance with a seesaw operation of the operation member. 2. The multi-input electric component according to claim 1, wherein the insertion hole has a mortar shape that gradually increases outward with the engaging portion as a boundary. 3. The multi-input electric component according to claim 1, wherein the operation member is held by a driving body having an upper surface opened, and a protrusion for pressing the push switch is provided on the lower surface of the driving body.

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