TWI261850B - Push switch - Google Patents

Abstract

The present invention provides a push switch preventing a contact part from being deformed by push operation and allowing a contact to be surely switched over. This push switch comprises cases 1 and 17 formed with synthetic resin, a fixed contact 4 buried in the cases 1 and 17 so that a part thereof can be exposed from the cases 1 and 17, and a movable contact 6 allowed to come into contact with and separate from the fixed contact 4 by an operating member 10. The fixed contact 4 comprises a contact part 4a allowed to come into contact with and separate from the movable contact 6. The rear surface side of the contact part 4a on the opposite side of the surface allowed to come into contact with and separate from the movable contact 6 is supported by a receiving part 2b provided on the case 1. A hole 2a extending from the rear surface of the fixed contact 4 is formed in the case 1.

Description

Α7 Β7 >1261850. Both '4', invention description (1) [Technical field to which the present invention pertains] (Please read the back note first and then fill in this page) The present invention relates to an electronic machine button for a mobile phone or the like. A universal push switch, or a push switch that is pressed at the center of a multidirectional input device used in an electronic device operation such as a mobile phone. [Conventional Technology] In order to explain a conventional push-type switch, Fig. 17 is a cross-sectional view of an essential part of a conventional push-type switch. Fig. 18 is an enlarged view of the main part of the conventional push switch. Fig. 19 is a cross-sectional view of an essential part for explaining a conventional method of manufacturing a push switch. Next, the conventional push switch will be described with reference to Figs. 17 to 18 . The case 80 is composed of a synthetic resin molded article having a thin box shape, and has a square thin bottom wall portion 81. The bottom wall portion 8 1 has a first hole 8 1 a formed through the center portion and a pair of second holes 8 1 b formed on both sides of the second hole 8 1 a. Turned. Ministry of Economic Affairs, Intellectual Property Bureau, Staff and Consumer Cooperative, printed the first fixed 8 2: a circular contact portion 8 2 a and a mounting portion 8 2 b provided at the outer peripheral portion of the contact portion 8 2 a, installed The portion 8 2 b is embedded in the bottom wall portion 8 1 , and the contact portion 8 2 a is exposed on the surface of the bottom wall portion 81 in a state in which the upper surface of the closed hole 丨a is closed. The second fixed contact 8 3 has a semicircular arcuate shape (not shown), and has an arcuate contact portion 8 3 a and a #8 8 bb disposed at the outer periphery of the contact portion 8 3 a , and an arcuate contact portion 8 3 a is exposed on the surface of the bottom wall portion 861, and the mounting portion 836b of the second @ fixed contact 8.3 is embedded in the bottom dam portion 81, and the contact portion 8.3a closes the pair of second holes 8 1 b. The second fixed contact 8 3 is embedded in the paper scale applicable to the Chinese National Standard (CNS) A4 specification (21〇Χ; 297 mm), 4-A7 B7 wrapped 26 sundries J month inverse five, after the invention description '1st The contact portion 8 2 a of the fixed contact 8 2 is in a state of being surrounded by the contact portion 8 3 a of the second fixed contact 8 3 . The gravity S point 84 is formed of a metal-shaped leaf spring, and is placed on the bottom wall portion 81. The outer edge portion 8 4 a is in contact with the pair of second fixed contacts 8 3 . After the movable contact 84 is placed, the top portion 8 4 b is in a state of being opposed to the contact portion 8 2 a of the first fixed contact 8 2 . The movable contact 84 is pressed by the operating member 95 to be reversed, and the movable contact 84 is pressed by the operating member to reverse the contact portion 8 of the top 8 4 b and the first fixed contact 8 2 . a contact, the first fixed contact 8 2 and the second fixed contact 8 3 are turned on. The conventional push switch has the above structure. Next, a method of manufacturing the casing 80 and the first and second fixed contacts 82 and 83 will be described. As shown in Fig. 19, the hoop-shaped contact plate 8 5 having the first and second fixed contacts 8 2, 8 3 is disposed between the upper metal mold 86 and the lower metal mold 87, and the The upper metal mold 86 and the lower metal mold 8 7 are clamped. At this time, the first pin 90 that can move up and down through the upper die 84 is pressed against the contact portion 8 2 a of the first fixed contact 8 2 on the lower die 87, and at the same time, The pair of second pins 9 1 of the pin 90 can be moved up and down, and the contact portion 8 3 a of the second fixed contact 8 3 is crimped to the lower metal mold 8 7 , and the contact portions 8 2 a, 8 3 a can not be moved. Then, the thermoplastic resin such as melted polyethylene terephthalate (p ET ) is injected from the gate 8 8 provided on the lower metal mold 8 7 to the upper metal mold 86 and the lower metal. The space formed between the dies 81, i.e., the cavity 89, is thus formed, and the case 80 is formed. At this time, the paper size is applicable to the Chinese National Standard (CNS) A4 specification (21 297 297 mm) (please read the note on the back and fill out this page) *Booked by the Ministry of Economic Affairs, Intellectual Property Bureau, Staff Consumer Cooperatives -5-

Jmi攸(月Μ Β7 5, invention description i first and second pins 90, 9 1 are in contact with the entire same surface of the contact portions 8 2 a, 8 3 a, and the first pin 90 is removed, forming From the i-th fixed contact (please read the back note first and then fill out this page) 8 2 contact 邰 8 2 a the first hole 9 2 extended on the back. After removing the second pin 9 1 'formed from the first 2, the contact portion 8 3 of the contact 8 3 is fixed to the second hole 9 3 extending from the back surface. Then, the connection portion (not shown) of the first and second fixed contacts 8 丄 and 8 2 is cut off. The two push-type switches have the above-described configuration. When the push-type switch is operated, the movable contact 84 is reversed, and the contact portion 8 of the top portion 8 4 b and the first fixed contact portion 8 2 2 a contact, the first and second fixed contacts 8 2, 8 3 are turned on, and become the 〇n state, and the electrical signal is output. At this time, the contact portion 8 2 a is moved as the movable contact 8 as shown in FIG. 4 is pressed downward, and gradually enters the first hole 9 2, and then the contact portion 8 2 a is deformed into a state of being recessed downward due to repeated pressing operation. [Problems to be Solved by the Invention] Ministry of Economic Affairs Intellectual Property Bureau Staff The push-type switch printed by the consumer cooperative has the above-described structure, and the contact portion 8 2 a of the first fixed contact 8 2 is deformed toward the first hole 8 1 a due to the repeated pressing operation, so the movable contact 8 4 The distance between the top portion 8 4 b and the contact portion 8 2 a increases, and when the movable contact 8 4 reverses, the non-contact state of the top portion 8 4 b and the contact portion 8 2 a is caused, and the action of the push-type switch is caused. Unreliable The present invention has been made in view of the above problems, and an object thereof is to provide a push switch in which a contact portion is not deformed by a pressing operation, and it is possible to reliably switch a contact and extend the life of the switch. -6 - This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 mm) 1261850 A7 B7 V. Description of invention) [Means for solving the problem] The first means for achieving the above object, the present invention The push-type switch is provided with a box body, a fixed joint and a movable joint; the box body is composed of a synthetic resin molded product; the fixed contact is embedded in the box body, a part of which is exposed from the box body; and the movable joint is operated by the operating member Separating from the above fixed contact; The fixed contact has a contact portion that is disengaged from the movable contact, and a side surface opposite to a surface of the contact portion that is in contact with the movable contact, that is, a back side, is supported by a support portion provided on the case. A hole extending from the back surface of the fixed contact is formed in the casing. Further, when the hole ' is abutted in the mold by the crimping pin, the contact portion avoids the back surface of the center portion. The resin is filled in the mold, and then the crimp pin is removed, and the support portion is formed to extend from the back surface of the contact portion. When the mold is formed, the resin is not filled in the mold by the resin pin. The back surface of the contact portion is formed to pass through the center portion of the contact portion in a transverse direction. Further, as the second means, the support portion of the push switch of the present invention is cross-shaped in a cross shape through the center of the contact portion. Further, as the third means, the holes of the push switch of the present invention are dispersed around the support portion at even intervals. Further, as the fourth means, the fixed contact of the push switch of the present invention has a projecting portion around the contact portion, the entire back surface of the contact portion is supported by the support portion, and the hole protrudes from the above The back side of this section is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the notes on the back and fill out this page), τ^^ Ministry of Economic Affairs Intellectual Property Bureau Staff Consumer Cooperative Print A7 B7 I ^I261SSiu I pin l month u day five, invention description ς) extension. Further, as the fifth means, the fixed contact of the present invention is supported by the scooping uplift, and the portion is in point contact with the movable contact. [Embodiment of the Invention] A first embodiment of a push switch according to the present invention will be described below with reference to the drawings. Fig. 1 is a plan view showing a multidirectional input device according to a first embodiment of the push switch of the present invention. Fig. 2 is a sectional view taken along line 2 - 2 of Fig. 1. Fig. 3 is an exploded perspective view showing the multidirectional input device of the first embodiment of the push switch of the present invention. Fig. 4 is a bottom plan view showing the casing in the multidirectional input device of the first embodiment of the push switch of the present invention. Fig. 5 is a sectional view taken along line 5 - 5 of Fig. 4. Fig. 6 is an enlarged cross-sectional view of an essential part of the first embodiment of the push switch of the present invention. Fig. 7 is a cross-sectional view of an essential part of an operation member of the multidirectional input device according to the first embodiment of the push switch of the present invention. Fig. 8 is a bottom plan view showing a supporting member in which each member is embedded in the multidirectional input device of the first embodiment of the push switch of the present invention. Fig. 9 is a sectional view taken along line 9 - 9 of Fig. 8. Fig. 10 and Fig. 11 are explanatory views of the operation of the multidirectional input device according to the first embodiment of the push switch of the present invention. Figs. 1 and 2 are a cross-sectional view showing the principal part of the manufacturing method of the first embodiment of the push switch of the present invention. The push switch according to the first embodiment of the present invention is used as, for example, a push switch of a multidirectional input device, and the multidirectional input device will be described first. As shown in Figures 3 to 5, the lower case 1 has an 8-angle flat plate (please read the note on the back side and fill out this page). 11 Printed by the Intellectual Property Office of the Ministry of Economic Affairs. China National Standard (CNS) A4 Specification (210X 297 mm) -8 - /1261850 f,, A7 % : L· 二Β7 V. Invention Description ς ) (Please read the notes on the back and fill out this page) The bottom wall portion 2 and the side wall portion 3 that is erected from the outer peripheral edge of the bottom wall portion 2. The bottom wall 邰 2 has four sector-shaped first holes 2 a , a support portion 2 b and a pair of second holes 2 c. The four sector-shaped first holes 2a are formed in the center, and are vertically penetrated and arranged on the same circumference. The support portion 2b is located between the first holes 2a and formed in a cross shape. The second hole 2c is formed at a position where the first hole 2a is broken. Further, as shown in Fig. 3, the bottom wall portion 2 has projections 2d which are opposed to each other at four positions on the upper surface. Further, as shown in Figs. 4 and 5, the lower outer edge further includes a plurality of recesses 2e, and the side wall portion 3 is composed of a first side wall portion 3a and a second side wall portion 3b. On the first side wall portion 3a, there is a protruding portion 3c at the center. The second side wall portion 3b is adjacent to the first side wall portion 3a. The first and second side wall portions 3a and 3b are alternately arranged on the circumference, and are formed as an octagonal side wall portion 3, a second fixed contact 4 made of a metal plate, and having a circular contact portion economy. The Ministry of Intellectual Property Office employee consumption cooperative prints 4 a and the terminal portion 4 b ° contact portion 4 a extending outward from the contact portion 4 a to close the first hole 2 a and expose the bottom wall The surface of the part 2. The terminal portion 4b is embedded outwardly and then exposed to the back surface, and is placed inside the first side and then protruded from the side surface. The front end is bent and housed in the recess 2e. The back surface ‘ of the contact portion 4 a of the second fixed contact 4 to be embedded is provided with a support portion 2 b which passes through the center portion and is cross-shaped in cross. The back surface of the contact portion 4a is supported by the support portion 2b. The common contact 5 composed of a metal plate has an arcuate base 5a, a rectangular contact portion 5b, and a terminal portion 5c. The contact portion 5b is located at the front end of both ends of the base portion 5a. The terminal portion 5c extends outward from a portion of the base portion 5a. -9 - This paper size applies to Chinese National Standard (CNS) Α4 specification (210Χ29? mm) 126^86®

A7 B7

The gentry point portion 5 is exposed on the surface of the bottom wall portion 2 in a state in which the pair of second holes 2c are closed. The base portion 5a is exposed on the surface of the portion 2 in a state of surrounding the contact portion 4a. The front end of the terminal portion 5c is bent and housed in the recess 2e. Thus, the common contact 5 is embedded in the bottom wall portion 2. The second movable contact 6 is made of a metal-shaped leaf spring, and is guided by the four projections 2 d of the bottom wall portion 2 and placed on the surface of the bottom wall portion 2. After the second gravity contact 6 is placed, the outer periphery of the second movable contact 6 is constantly in contact with the contact portion 5 b of the common contact 5, and the top portion 6 a becomes the second fixed contact 4 The state of the contact portion 4 a is clutched. Further, the movement of the second movable point 6 is restricted by the projection 2d. The push switch S1 is formed by the second movable contact 6, the second fixed contact 4, and the common contact 5. The operation member 1 〇 has a first movable contact 1 1 and a handle portion 1 2 . The first movable contact 1 1 is made of a metal 8-shaped thin plate. The handle portion I 2 is made of synthetic resin, and the central portion of the first movable contact 11 is embedded in the synthetic resin. The first movable contact 1 1 has a projection 1 1 a, a plurality of (8) relief portions 1 1 b, a recess 1 1 C, and a contact portion 1 1 d. The projection 1 1 a is composed of an octagonal ridge that surrounds the outer circumference of the knob portion 1 2 and protrudes upward in the axial direction. The relief portion 1 1 b is an inverted triangular through hole. The inverted triangular hole leaves a bridge portion on the outer circumference and is formed outward from the protrusion portion 1 1 a. The recess 1 1 c is formed at the outer peripheral portion of the bridge. The lower central portion of the contact portion II d is formed in a hemispherical shape. The handle portion 1 2 is formed in a rectangular column shape 'the base portion 1 2 a having a thin plate shape and the column portion 1 2 b. The column portion 1 2 b extends upward from the center of the base portion 1 2 a, and the front end thereof has a quadrangular prism shape. The contact portion 1 1 d formed at the center of the first movable contact 1 1 is embedded in the paper size. The Chinese National Standard (CNS) A4 specification (210X297 mm) is applied. (Please read the back note and fill out this page.) Ministry of Economic Affairs, Intellectual Property Bureau, Staff Consumption Cooperative, Printed -10- 1261850

Within the base 1 2 a. (Please read the precautions on the back and then fill out this page.) The first movable contact 1 i ± is set inside the handle ", the i-th movable & point 1 1 & the base 1 of the handle 邰1 2 2 a, extending radially from the outside '汝 汝 1 1 d is exposed from the lower side of the S part 1 2 a to the lower side. As shown in Fig. 2, between the Η_Ιά1 i and the contact ida, a right-handed connection 1 1 e is formed, and the through-hole 1丨e is filled with resin as a base 1 of the handle J 1 2 2 a connecting part of the column part b 2 b. The operation member 1A of the port 4 configuration is slidably housed in the lower case 1 on which the second movable contact 6 is placed. At this time, the protruding portion 3 c of the second side wall portion 3 is located in the concave portion 丨i c of the first movable contact 丨丨, and the i-th movable contact 11 is guided into the lower case i. At the same time, the engagement of the concave portion ic with the sag 邰3 c has the function of stopping the rotation of the operating member 1 . After the operation member 1 is housed in the lower case 1, the outer surface of the contact portion 1 1 d of the first movable contact 1 is in contact with the second movable contact 6, and since it is a contact between the spherical surfaces, the operation member 1 〇 can be dumped flexibly. The Ministry of Economic Affairs' Intellectual Property Office employee consumption cooperative prints four first fixed joints 1 5 which are made of metal, as shown in Fig. 3 and Fig. 8, having a slightly fan-shaped base 1 5 a and from the base 1 5 a Ten end portions 1 5 b formed by bending downward. Further, the abutting portion 16 has an annular portion 16b and a leg portion 16c. The annular portion 16b is made of a thin metal plate and has an 8-hole through hole 16a in the center. The leg portion 16c is formed to extend from the annular portion 16b to the four sides. Further, the abutting portion 16 is not necessarily made of metal, and may be made of a hard synthetic resin or the like. The first fixed contact 16 and the abutting portion 16 are embedded in a support member 17 made of synthetic resin and forming an upper case, and are integrally fixed to the standard of the paper. The Chinese National Standard (CNS) A4 specification is applied. (210X297 mm) -11 - A7 B7 ;|lS6t8Sdi ! 1 month 丄j π ------ -.....•........一------------- --- V. Description of the invention (9) on the member 17. The support member 17 is composed of a synthetic resin molded article, and as shown in Figs. 3, 8, and 9, has a base body 17a, a triangular convex portion 17b, and a connecting portion 17c. The base body 17a is composed of an 8-angular thin plate having an octagonal through hole 17 d in the center. The convex portion 17b protrudes downward on the surface of the base body 17a. The connecting portions 17c are formed on the outer edges of the bases 17a, facing each other. The first fixed contact 15 and the abutting portion 16 are embedded in the support member 17 in the same plane to be integrated. Further, as shown in Fig. 8, the first fixed contact 15 is held by the base 1 7 a and the convex portion 1 7 b, and the adjacent first fixed contact 15 is connected by the connecting portion 1 7 c Become integrated. Further, the abutting portion 16 on the center side of the first fixed contact 15 is held by the base portion 17a and the convex portion 17b in a state where the annular portion 16b is caught by the base portion 17a and the convex portion 17b. The convex portion is integrated with the first fixed contact 15 5 , and the through hole 16 6 a communicates with the through hole 17 d of the support member 17 . The support member 17 in which the first fixed contact 15 and the abutting portion 16 are buried is fixed as an upper case, and is covered by the open portion of the lower case 1, and is supported by the support member 1 as the upper case. 7 and the lower case 1 constitute the leg portion 7. At this time, as shown in Fig. 2, the terminal portion 15b' of the first fixed contact 15 is bent inwardly and joined to the recessed portion 2e of the bottom wall portion 2, and is firmly fixed. Further, the handle portion 1 2 of the operating member 10 protrudes from the through hole 16a of the abutting portion 16. After the support member 17 is fixed to the lower case 1, as shown in Fig. 2, the operation member 10 is pressed against the abutment portion 16 by the pressing force of the second movable contact 6 status. With the protrusion 1 1 a (please read the note on the back of the page and then fill in the page). The Ministry of Economic Affairs, Intellectual Property Office, Staff Consumer Cooperative, printed this paper scale, applicable to China National Standard (CNS) A4 specification (210X297 mm) - 12- A7 B7 |261850 13⁄4 9 V. INSTRUCTION DESCRIPTION (10) Abutting against the back surface of the abutting portion 16 6 , the i-th movable contact 1 1 is separated from the first fixed contact 15 . From the ith movable contact]_i and the first fixed contact 15, the dump-type switch S 2 ' is normally in the 〇f f state, and power can be saved. Referring to Fig. 10, the operating member 1 〇, the abutment point of the protrusion 1 1 a and the abutting portion 16 can be tilted as the first fulcrum a, and when the operating member 10 is tilted, the first fixed contact i 5 is in contact with the first movable contact 1 1 'the table 1 fixed contact 1 5 and the common contact 5 are turned on by the first movable contact 1 1 and the second movable contact 6 to be in the 〇N state. The orientation detection signal as the first electrical signal is output. In other words, the terminal ρβ 1 5丨] of the first fixed contact 15 and the common contact 5 become 〇Ν, and the orientation detection signal is output. Referring to Fig. 1, when the operating member 1 is tilted in the same direction, the operating member 10 tilts the contact point of the first fixed contact 15 and the second movable contact 1 as the second fulcrum B. Then, the contact portion 1 1 d moves downward, and the second movable contact 6 is pressed, the second movable contact 6 is reversed, and the top portion 6 a is in contact with the contact portion 4 a of the second fixed contact 4 . The common contact 5 and the fixed contact 4 of the table 2 are turned on, and become the 〇N state, and output a determination signal as the second electrical signal. Further, since the convex portion 17b can enter and exit the relief portion 1 1 b of the first movable contact 1 1 , the tilting operation of the thinned operation member 1 灵活 is made flexible and also serves as a guide for the tilting. The cover member 20 is made of metal and has a substrate 20b and a foot 2〇c. The center of the substrate 2〇b has a circular through hole 2 〇 a. The leg portion 2〇c is formed by bending downward from the opposite sides of the substrate 20b. Have this shape (please read the notes on the back and fill out this page)

, 1T Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing This paper scale applies to China National Standard (CNS) Α 4 specifications (210X297 mm) -13-

61 coffee page "" ^, fifth, invention description A7 B7 V11 (please read the back of the note before filling this page) cover member 20 0 'cover the surface of the support member 17, and, the foot 2 0 c The inner side is bent and joined in the recess 2e of the bottom wall portion 2, and the fixing of the cover member 20 is firm. The cover member 20 has an electric mask function, and the terminal 邰20 is connected to a seal pattern or the like formed on a wiring board not shown, and allows static electricity or the like from the outside to flow to the seal pattern, thereby enabling more reliable detection. The multidirectional input device using the push switch of the present invention has the above configuration. Next, the operation will be described with reference to Figs. 10 and 11 . When the operating member 1 is tilted in one direction of the first fixed contact 15 disposed at the cross-shaped position, the operating member 1 is dumped with the first pivot point A as a fulcrum. The first movable contact 1 1 is in contact with the first fixed contact 15 , and the orientation detection signal as the first electrical signal is input to the microcomputer disposed on the wiring substrate not shown. Further, when the operating member 1 is tilted, the operating member 1 is tilted with the second fulcrum B as a fulcrum, and the second movable contact 6 is pressed downward by the contact portion 1 1d to come into contact with the second fixed contact 4. When the second fixed contact 4 is in contact with the second movable contact 6, the determination signal as the second electric signal is input to the microcomputer (not shown), and the tilting direction determining signal (orientation determining signal) is output from the microcomputer to the external electric device. machine. At this time, since the second movable contact 6 is reversed, the operator can feel the "click" sound, so that it is confirmed that the orientation determination signal has been output. Then, after the pressing force of the operating member 10 is released, the second movable contact 6 returns, and the elastic pressure presses the contact portion 1 1 d upward, and the protruding portion II a abuts against the abutting portion 16 such that The operating member 1 〇 automatically returns to the neutral position and returns to the state of Fig. 2. When the operating member 10 returns to the neutral position, the second fixed contact 4 is separated from the second movable contact 6, -14- This paper scale applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm) kl B7 1261850

V. Description of the Invention (U The first fixed contact 15 is separated from the first movable contact 1 1 and the two switches s 1 and S 2 are in the 〇FF state, which saves power. (Please read the notes on the back and fill in In addition, since the operating member 10 is movable in eight directions, when the operating member 10 is tilted in the adjacent direction (oblique direction) of the first fixed contact 15 disposed at the cross-shaped position Two first fixed contacts 1 5 are in contact with the first movable contact 1 1 , and the first electrical signal is input to the microcomputer, and the microcomputer recognizes the tilt in the oblique direction. When the operating member 1 is further dumped in this state, In the same manner as described above, the push switch s 1 is operated to determine that the signal is input to the microcomputer. Further, when the operating member 10 is tilted with the first fulcrum A as a fulcrum, the tilting action may be omitted, and the operating member 1 may be omitted. Pressing in the direction of the axis causes the second fixed contact 4 and the second movable contact 6 to be in the 〇N state. The Ministry of Economic Affairs, the Intellectual Property Office, the employee consumption cooperative prints the other, and pushes the operating member 10 in the axial direction in the neutral state. When the first fixed contact 1 5 and the first movable contact 1 1 The tilt switch S 2 is in the 〇FF state. In this state, the second fixed contact 4 is in contact with the second movable contact 6, the push switch S1 is in the ◦N state, and the second electrical signal is input to At this time, the microcomputer outputs a signal from the independent push switch S 1 to an external electric machine. By the tilting and pressing of the operating member 10, the second movable contact 6 is repeatedly reversed, and the top 6 a and the second The contact portion 4a of the fixed contact 4 is in contact with each other, and the pressing force is applied downward to the contact portion 4a. However, since the contact portion 4a is supported by the cross-shaped support portion 2b, the contact is provided. The portion 4 a is not deformed, and the switch with the top portion 6 a is always in a good state. The push switch of the present invention is applicable to the Chinese National Standard (CNS) A4 specification (210×297 mm) as the first paper size of the above multi-directional input device. ) -15- j2618S〇i( ' -1··丨4_ A7 B7 Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description (13) 2 ® fixed contact 4 and 2nd movable contact 6 Press-type switch s 1. For the surface, refer to Figure 1 2 and Figure 13 for the description of the hair. In the method of manufacturing the push switch, the upper metal mold 25 has a first through hole 25a penetrating vertically, a pair of second through holes 25b that are inserted into the first through hole 25a, and an octagonal shallow groove formed on the back surface. The bottom first recess 2 5 c. The lower mold 2 6 has an annular second recess 2 6 a, and a gate 2 6 b that communicates with a part of the second recess 26 a and extends outward. The upper metal mold 25 and the lower metal mold 26 are combined, and the cavity 27 is formed by the first and second recesses 2 5 a and 2 6 a. The first pin 28 is a metal cylinder, and a cross-shaped groove portion 28 a is formed at a tip end of the slit, and the first pin 28 is held up and down in the first through hole 25 5 a. The second pin 29 is a metal cylinder and can be held up and down in the second through hole 2 5 b. The contact plate 30 is made of a metal hoop. The second fixed contact 4 and the common contact 5 are formed by press working. The hoop-shaped contact plate 30 having the second fixed contact 4 and the common contact 5 is disposed between the upper metal mold 25 and the lower metal mold 26, and the upper metal mold 25 and the lower metal mold 2 are disposed. 6 clamping. At this time, the first pin 28 that can move up and down is formed with the tip end of the groove portion 28a, and is crimped to the back side of the contact portion 4a of the second fixed contact 4, so that the connection is located in the cavity 27. A gap is not formed between the dot portion 4 and the lower metal mold 26, and the cross-shaped groove portion 28a is located on the back surface of the contact portion 4a. Further, similarly to the first pin 28, a pair of second pins 29 that can be moved up and down are pressure-bonded to the back side of the contact portion 5b of the second common contact 5, and are located at the contact portion of the cavity 27 5 b, the pressure of the resin is not moved by the melt. This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the notes on the back and fill out this page)

-16- A7 B7 ^261850 ί - ^-Λ . V. Inventions (14) (Please read the note on the back and fill out this page) Then, melt the polyethylene terephthalate (Ρ Ε When the thermoplastic resin such as τ) is injected from the gate 2 6 b into the cavity 27 and the second fixed contact 4 and the common contact 5 are buried, when the lower case is formed by 1 °, Since the cross-shaped groove portion 28 8 ' is formed on the first pin 28, the molten resin is filled in the groove portion 28a, and the cross-shaped support portion 2b supports the second fixed contact 4 Contact portion 4a. After the first pin 28 is removed, four first holes 2a are formed on the back surface of the contact portion 4a. After the second pin 29 is removed, the second hole 2c extending from the back surface of the contact portion 5b of the second common contact 5 is formed. Next, a view of a second embodiment of the push switch of the present invention will be described. Figure 14 is an enlarged cross-sectional view of an essential part of a second embodiment of the push switch of the present invention. Fig. 15 is an enlarged plan view of an essential part of a second embodiment of the push switch of the present invention. Fig. 16 is a cross-sectional view of an essential part for explaining a manufacturing method of a second embodiment of the push switch of the present invention. In the first embodiment, the support portion 2b passes through the center portion of the contact portion 4a of the second fixed contact 4, and the second portion of the push switch of the present invention is printed in the first embodiment. In the embodiment, as shown in Figs. 14 and 15, the entire back surface of the contact portion 4a is supported by the support portion 2f, and the hole 2g extends from the back surface of the projecting portion 4c. The portion 4c. is formed by extending from the contact portion 4a toward the pair of common contacts 5. That is, a pair of thin holes 25d are used instead of the first through holes 25a of the upper die 25 of the first embodiment, and a pair of thin pins 3 1 are passed through the holes 2 5 d ' The Hin end of the thin pin 31 is crimped onto the overhanging portion 4c of the second fixed contact portion 4, and in this state, the molten resin is injected into the cavity 27. Therefore, the paper scale applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -17- ifVi: ;:}

J A7 B7 V. INSTRUCTIONS (15) (Please read the precautions on the back and fill out this page.) The contact portion 4a of the second fixed contact 4 is buried in the molten resin. The push switch S 1 thus manufactured is supported by the support portion 2 f as a whole of the center portion of the contact portion 4 a. Therefore, the contact portion 4 a can be prevented from being deformed by the repeated pressing operation. The other constructions are the same as in the first embodiment, and the same members are denoted by the same reference numerals, and the description thereof will be omitted. The push switch of the present invention has the above-described structure and is manufactured by the above method, but is not limited to the above-described embodiment. It is also possible to provide a plurality of holes around the contact portion 4a. In this case, the holes are arranged at equal intervals around the contact portion, and the contact portion 4a can be pressed more evenly by the pin during injection molding. In the first embodiment, the support portion 2b is a protruding wall. Although the cross is formed in a cross shape, the protruding wall may be one, three or six as long as the central portion of the contact portion 4 a is cross-cut. At this time, the protruding walls are crossed at equal angles to make the support more balanced. Further, although the example in which the push switch of the present invention is applied to the multidirectional input device has been described above, the present invention is not limited thereto. For example, it may be used as a one-way push switch in which the contact portions 4a are formed in parallel. Printed by the Intellectual Property Office of the Ministry of Economic Affairs, the Consumers' Cooperatives, the effect of the present invention. The fixed contact of the push switch of the present invention has a contact portion that is coupled to the movable contact, and the contact portion is opposite to the movable contact surface. The side surface, that is, the back surface, is supported by a support portion provided on the casing, and a hole extending from the back surface of the fixed contact is formed in the casing. Therefore, the surface of the contact portion that is separated from the movable contact is supported by the support portion. Supported, will not be deformed by pressing action, because -18- This paper scale is applicable to China National Standard (CNS) A4 specification (210X297 mm) A7 B7 1261850 V. Invention description (16) Therefore, the contact can be realized Switching while providing a long-life push switch. (Please read the precautions on the back and fill out this page.) In addition, since the hole of the push switch of the present invention is formed to extend from the back surface of the contact portion, the contact portion is reliably pressed during injection molding, and the resin is Adhering to the upper surface of the contact portion, it is possible to provide a highly reliable push switch that is in the 〇N state by the pressing operation. Further, since the support portion of the push switch of the present invention passes through the center portion of the contact portion transversely, the contact portion is reliably pressed during the injection molding, and the contact portion does not move, so that it can be reliably provided. A highly reliable push switch that performs contact switching. Further, since the support portion is located at the central portion of the contact portion, the surface of the contact portion that is in contact with the movable contact is supported by the support portion, and is not deformed by the pressing operation. Therefore, it is possible to provide a 〇N by the pressing operation. Stateful, long-life push-button switch. In addition, since the support portion of the push switch of the present invention is cross-shaped in a cross shape through the center portion of the contact portion, the contact portion is actually pushed at the time of injection molding. Since the pressure and the contact portion do not move, it is possible to provide a highly reliable push switch that can reliably perform contact switching. Further, since the support portion is located at the central portion of the contact portion, the surface of the contact portion that is in contact with the movable contact is supported by the support portion and is not deformed by the pressing operation. Therefore, it is possible to provide a Ο N by the pressing operation. Stateful, long-life push-button switch. Further, the hole of the push switch of the present invention is dispersed around the support portion at a slight interval, and the contact portion is pressed in a balanced manner during the injection molding, and the contact portion does not move, so that it can be reliably connected. A highly reliable push switch for point switching. In addition, since the support portion is located at the center of the contact portion -19 - This paper scale applies to the Chinese National Standard (CNS) A4 specification (2丨〇><297 mm) 嗯2618丽 |7

Iti

A A7 B7 V. Inventive Note (17) (Please read the precautions on the back side and fill out this page). Therefore, the surface of the contact portion that is in contact with the movable contact is supported by the support portion and is not deformed by the pressing operation. Therefore, it is possible to provide a long-life push switch that is in the ο N state due to the pressing operation. Further, in the fixed contact of the push switch of the present invention, there is a projecting portion around the contact portion, and the entire back surface of the contact portion is supported by the support portion, and at the same time, the hole extends from the back surface of the projecting portion, so that the contact portion It does not move, and provides a highly reliable push switch that can reliably perform contact switching. Further, since the contact portion is entirely supported by the support portion, even if a strong pressing force acts on the contact portion, the contact portion is not deformed, and a long life can be provided in the 〇N state due to the pressing operation. Push switch. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a multidirectional input device according to a first embodiment of the push switch of the present invention. Fig. 2 is a sectional view taken along line 2 - 2 of Fig. 1. Fig. 3 is an exploded perspective view showing the multidirectional input device of the first embodiment of the push switch of the present invention. Printed by the Ministry of Economic Affairs, the Intellectual Property Office, and the Consumer Cooperatives. Fig. 4 is a bottom plan view of the casing in the multidirectional input device according to the first embodiment of the push switch of the present invention. Fig. 5 is a sectional view taken along line 5-5 of Fig. 4. Figure 6 is an enlarged cross-sectional view of an essential part of a first embodiment of the push switch of the present invention. Figure 7 is a cross-sectional view of the essential part of the operating member in the first embodiment of the push switch of the present invention. This paper scale is applicable to China National Standard (CNS) A4 specification (21〇χ297 mm) -20- Ministry of Economic Affairs Intellectual Property Bureau employee consumption cooperative printing 5, invention description) Figure 8 is the use of the push switch of the present invention 1 is a bottom view of a support member in which each member is embedded in the multidirectional input device of the embodiment. Figure 9 is a 9-line cross-sectional view of Figure 8. Fig. 10 is a view showing the operation of the multidirectional input device according to the first embodiment of the push switch of the present invention. Fig. 1 is a view for explaining the operation of the multidirectional input device according to the first embodiment of the push switch of the present invention. Fig. 1 is a cross-sectional view of an essential part for explaining a manufacturing method of the first embodiment of the push switch of the present invention. Fig. 1 is a cross-sectional view of an essential part for explaining a manufacturing method of the first embodiment of the push switch of the present invention. Fig. 14 is an enlarged cross-sectional view of an essential part of a second embodiment of the push switch of the present invention. Fig. 15 is an enlarged plan view of an essential part of a second embodiment of the push switch of the present invention. Fig. 16 is a cross-sectional view of an essential part for explaining a manufacturing method of a second embodiment of the push switch of the present invention. Figure 17 is a cross-sectional view of an essential part of a conventional push switch. Fig. 18 is an enlarged cross-sectional view of an essential part of a conventional push switch. Fig. 19 is a cross-sectional view showing the principal part of the conventional push switch manufacturing method. [Description of symbols] (Please read the notes on the back and fill out this page)

1 : lower case, 2: bottom wall portion, 2 a : first hole, 2 b : support portion

Μ Β 7 | 2 赖 _ 5, invention description (19) 2c: second hole, 2d: protrusion, 2e: recess, 2f: support, 2g: hole, 3: side wall, 3a: first side, 3b: 2nd side wall part, (please read the back of this page and fill in this page) 3c : protruding part, 4: 2nd fixed contact, 4a: contact part, 4b: terminal part, 4c: extension part, 5: Common contact, 5a: base, 5b: contact, 5c: terminal, 6: second movable contact, 6a: top, 7: foot, 1 0: operating member, 1 1 : first movable contact 11 a : protrusion, 1 1 b : retraction, 1 1 c : recess, 1 1 d : contact, 11 e : through hole, 12 : handle, 12a: base, 12b: column, 15: First fixed contact, 16: abutting portion, 16a: through hole, 16b: annular portion, 16c: leg portion, 17: support member, 17a: base portion, 17b: convex portion, 17c: connecting portion, 20: cover Member, 25: upper metal mold, 25a: first through hole, 25b: second through hole, 25c: first concave portion, 26: lower metal mold, 26a: second concave portion, 26b: gate, 27: membrane cavity, 28: 1st pin, 2 8a: groove part, 29: 2nd pin, 30: contact plate, 31: thin pin, A: 1st branch , B: 2nd pivot point, S1: push-type switch, S 2: dumping switch, Ministry of Economic Affairs, Intellectual Property Bureau, employee consumption cooperative, printed paper scale applicable to China National Standard (CNS) Α4 specification (210X 297 mm) -22 -

Claims (1)

1261850 Gb. A8 B8 C8 D8 VI. Patent application scope 1 (Please read the note on the back and fill out this page) 1. A push-type switch is provided with a box made of synthetic resin molded articles, and a fixed contact embedded in the casing and a part of which is exposed from the casing; and a movable contact which is in contact with and separated from the fixed contact by the operating member; the fixed contact has contact with the movable contact a contact portion, the opposite side surface of the contact portion that is in contact with or separated from the movable contact, that is, the back side, is a push-type switch supported by a support portion provided on the casing, and is characterized in that : a hole extending from a rear surface of the fixed contact is formed in the case body, and the hole ' is abutted in the mold by the pressure contact pin in the mold, and the contact portion avoids the back surface of the center portion. The resin is filled in the mold, and then the crimp pin is removed, and is formed by extending from the back surface of the contact portion. The support portion is filled in the mold by the resin to the crimp pin. The back surface of the contact portion comes into contact, is formed based transversely central portion by the contact portion. The push switch according to claim 1, wherein the support portion is transversely cut through the center of the contact portion. The push-type switch according to claim 1, wherein the 'holes' are dispersed around the support portion at slightly equal intervals. The push-type switch according to claim 1, wherein the fixed contact has an extending portion around the contact portion, and the entire back surface of the contact portion is supported by the support portion. And the hole extends from the back surface of the above-mentioned projecting portion. _——_— This paper scale applies to China National Standard (CNS) (21〇><297 gongling) U7 1261850 as / B8 V . C8 } S; - L A_^___ points, patent application scope 5 5 . The push-type switch according to claim 1, wherein the fixed contact is raised by the support portion, and the portion 0 is connected to the black point τππτι, and the points can be described. Read the notes on the back and fill out this page.) 4 Printed by the Ministry of Economic Affairs, Intellectual Property Bureau, Staff and Consumer Cooperatives. Printed on this paper scale, applicable to China National Standard (CNS) Α4 specification (210X297 mm) -24 -