TW582045B - Movable contact for push button switch and switch device using the same - Google Patents

Abstract

The present invention provides a movable contact for push button switch and the structure of a switch device using the same, which can install a metal frame on a dome-shaped elastomer, so as to decrease the installation area for installing the movable contacts to be respectively soldered and mounted on a circuit board to the circuit board. The structure includes an insulating elastomer (1) capable of turning over the dome-shaped elastic deformation part (1c); a contact part (2) arranged at the lower side of an inflation part (1c); and a frame (3) formed by devices harder than the root (1a) of the elastomer (1) and installed in the root (1a) of the elastomer (1), the frame (3) having a outer periphery face formed as a cylinder covering the root (1a), and being provided with a first limitation part (3b) for limiting the traverse movement of the root (1a), a second limitation part (3a) for limiting the longitudinal movement of the root (1a), and a standing wall part (3b) for use in surface mounting.

Description

582045

Guilt, description of the invention (the description of the invention should state: the technical field of the genus Duck, the prior art, the content, the embodiment and the list of technical details) [Technical Field] (The description of the invention should teach the field of technology In particular, a button used for an operation switch of a communication device and the like is particularly related to a structure of a movable contact body for a push button switch formed of a dome-shaped expanded concrete insulating elastic body and a switch device using the same. [Background] [Technology] 1. Knowing the unique contact material body and the two-device device made of insulating resin: Tables in Figures 12 to 14. Figure 12 is a dome-shaped view, two ::: points: and The oblique r of the circuit board provided with fixed contacts is the mouth of the movable contact body in the state of the female 1 on the circuit board ... FIG. 14 is a longitudinal sectional view of the movable contact body when the surface is mounted: :: The movable contact body for closing is made up of an insulating body with a dome-shaped swollen part, a main translation body 5 and a solid body integrally, and the full limbs are also fixed on the root of the elastic body 51. The frame body 52 is made of a Mon plate material. Or the elastomer resin or the like is formed by a circular root portion 5 with a hollow portion, / adjacent to the SM, and a skirt shape b that can be elastically deformed, and a lower side of the skirt connected to the skirt portion. The contact portion 5 丨 d is formed. / Composed on the off button 5] e The frame 52 is made of a metal capable of soldering, so λ ^ 70% is inserted or fixed to the root 5U of the elastic body 51, A pair of fixed iridium loves 1 are arranged on both sides of Li to form a pair of mounting plates 52 on the circuit board 5-Λ / to the opposite side. &Quot; Also, as shown in FIG. 14 (2) It has a mounting piece 52b for surface mounting, 5? ≪, and a flat connection part is set up obliquely as the above-mentioned slamming contact body. The use of protection, Zhuangshan. The instrument is or Operation of communication equipment: The installation piece 52a or 52b of the above-mentioned frame 52 is mounted on the appropriate necessary bits 5 of the circuit board 54 on which the upper fixed contact 53 is placed. The contact portion 51d of 51c and the fixed contact point are arranged opposite to the ground to constitute the operation switch portion. 7 ▲, as the switch portion The arrangement is determined by the specifications of the operation switches of the electronic or communication equipment used, so that the movable contact bodies are respectively placed in appropriate necessary positions according to the regulations, and can correspond to various deformations. However, in the above-mentioned conventional practice, In the structure of the movable contact body for the button, since the upper _52 is integrally fixed to the root portion of the elastic body 51, a pair of outwardly protruding portions are formed on opposite sides of the frame body 52. Since the mounting piece A or ⑽ is mounted on the circuit board 54, the mounting pieces 仏 and 52b collide and interfere with each other, so the mounting area is increased, and it is difficult to narrow the key pitch of the operation switch portion when it is required to be narrowed. The problem of reducing the installation area. [Summary of the Invention] Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide a method for mounting a metal pivot body on a dome-shaped elastic body to obtain a movable contact body capable of being individually soldered on a circuit board. In addition, it can reduce the mounting area for mounting on a 4-way substrate, the movable contact body for a push button switch that can reduce the overall size of the device, and a switch device using the same. In order to solve the above problems, in the present invention, the [kind of scheme] is characterized by the following formula. Including an insulative elastic body with a reversible dome provided in the above 4 ¥ 40 TD RP, and a base member with a rigid base at the lower side of the U-joint, the elastic body is made of a material that is more elastic. The frame is not only formed as the root of the cylindrical elastic body, but also includes a restricting portion 2 that restricts the lateral movement of the root to cover the outer peripheral surface of the root, and a vertical wall portion that restricts the vertical movement of the root. When soldering on the surface of women's clothing at first glance, there are two types of soldering schemes, which are characterized in that the lower end of the above-mentioned standing wall portion is opposite to the BU, +, and #A I protruding from the lower end of the upper core portion to form a step portion. The Zincian solution is characterized in that the upper part is formed in a curved body, and the above-mentioned stand is made of a punched metal sheet with the ## H 'surface side as the solder surface, and the inner side of the upper 4 vertical wall portion is adjacent to the root. Xiao Yue said the above-mentioned restriction section. The outer peripheral surface of / is tightly occupied to form the fourth solution, which is characterized in that it is circular, and the m-th part is formed by a split surface formed by a substantially circular surface. The fifth solution is characterized in that the upper opening is formed as a wall opening I η η / restriction 邛 is a convex portion formed by protruding the inner side of the upper wall portion formed by bending the upper 邛 of the upper 邛 inward form. The sixth aspect of the above-mentioned legislation is characterized in that the upper part of the upper part of the Qiu Qiu / A / ^ Le ~ 1 gen part is formed by bending the upper part of the upper part of the "Lei Qiu Qiu 4"丁 立 r /, 丨 bow piece, and a lower bent piece formed by bending the upper to the inner side. 0 kinds of schemes' characterized in that the above-mentioned frame is used ": The first frame of the noodle and The second frame covering the above-mentioned roots u ^ root 4 scoops ± 1 ^ 4-and the lower side is formed, and the W frame ... 2 frames are lost and fixed from above and below. (4) 582045 Description of the invention Bin 裒 ---.............. .. The 8th type of side slaughter, Yi fighters% is prepared by the above-mentioned elastic 俨 * 面 的 装 的The flat part of the "suction nozzle". The ninth aspect of the table is formed with the feature of the ninth aspect of the table "characterized by the above-mentioned adsorption unevenness part. 1 Xiaocheng has prevention and the suction element. The first aspect" is characterized in that : Including — The board has two-way substrates in the first to ninth schemes. The circuit base point body, fixed contact point, and solid tin plate of the circuit switch are opposite to each other with a movable fixed contact point. The above-mentioned vertical wall part Yuyu t # rr, is attached. I bad tin is mounted on the above soldering pad. [Detailed description] The following embodiment of the present invention is not shown in Figure 1 to Figure 1. Figure j is a push button switch Using the positive contact of the movable contact body, I, a π Figure 2 舄 The top view of the movable contact for the push-button switch, Figure 3 is the bottom view of the 6-button push-button preparation, and Figure 4 is the sting A longitudinal cross-sectional view of the contact body mounted on the circuit substrate, FIG. 5 is a plan view of 舄 彳 early 砬, and FIG. 6 is a vertical section of the elastic flat FIG. 7 is a front view of the frame, FIG. 8 is a bottom curve view of the frame, and FIGS. 9 to 11 are vertical cross-sectional views showing other embodiments of the frame body mounted on the “early body.” In FIGS. 1 to 8 The 'elastic body 1' is formed by forming and processing an insulating resin such as rubber or an elastomer resin. The circular ring-shaped root portion ia, which has a hollow portion ib in the center of a movable region forming a button switch, which is ㈣, and The root] a elastically deformed portion 1G formed by a dome-shaped expansion portion connected to a, and 6 outwardly from the center of the elastically deformed portion 1_ columnar buttons 1 d are formed. The lower side of the button Id is formed to face the hollow portion.丨 b direction (5) 582045

Cylindrical projection # 1 ^ e 'The top of the projection 1 e is fixed ... (carbon) A flat portion made of conductive carbon is held in a negative position, and is flattened-the upper surface of the button id is ^ flat —4 Add If by spraying (bjast). υ Machining is slightly formed with bumps 2: The bottom surface of the 'above root portion' is formed with a plurality of groove-like portions le communicating from the hollow portion to the outside of the root portion U ..., U lb is bent toward the elastic deformation portion u ', ; Middle: 'repeatedly press-switch, the above gully section 丨 h, the middle section of Μ in the section 丨 b, the air inside is exhausted by 4 lg of Shang Ranzi said. Shape, reverse or sheet metal such as tinplate is punched into The expanded I direction: = curved to form an approximately cylindrical shape, the 4 upper plates 3 a perpendicular to the square inner office pivot body) direction ¥ curved standing wall portion 3b. The above, the text is shown in the above-mentioned elastomer, 1, as a basis for the above-mentioned elastic body 1

根 · Geng Deng 1 a on the periphery Q of the upper wall portion 3b with a plurality of shapes formed by a multilateral opening η-窆 two and ▲ & shape (octagonal shape in the present embodiment). The inner surface is combined with the outer periphery of the root portion 1a, and the hair portion 3H is the first restricting portion that moves in the root direction. At this time, due to the wall surface structure formed by the stand-up shape, a corner portion 3 of the% on the outer peripheral surface of the ring-shaped upper melon 1a is formed. Inside. ° The knife is deformed and enters the above-mentioned wall part 3b: language; K picture turns the above elasticity by 1 / _ Η +, when the second and second of her outer peripheral surface are in the frame 3, ~,] the corner of the inner surface In 3c, * * '... enters the state of the above-mentioned standing wall portion 3b ~ or when the heart is firmly fitted, so that the two can be separated at night, at the same time. In addition, since the upper part forms a plane-shaped flat portion, ^ -U)-(6) 582045 Description of the invention The cable T-shirt is utilized, and the plane portion can easily determine the position of each movable contact body. In addition, the upper plate 3a is formed at the center with a circular hole M through which the elastically deformable portion lc formed by a dome-shaped expansion portion can be inserted, and a peripheral surface 除 other than the circular hole "is combined with the upper surface of the root portion 1a. To form a second restricting portion that restricts the root portion from moving vertically.

^ 4. The height dimension L2 of the root portion ia of the flexible body 丨 is formed. The height dimension μ of the vertical wall portion 讣 of the frame body 3 is shorter. Therefore, the frame 3 is located in the upper command fr, and the lower end of the stand 1b is a phantom person with respect to the above-mentioned root 1a, forming a step S. Moreover, the movable contact body When mounted on the surface of the circuit board 4 described on the right, the lower end portion of the above-mentioned standing wall portion flutters to a tin portion on a tin plate (not shown).

In this way, since the lower end of the standing wall portion flutters with respect to the lower end of the above-mentioned elastic body 丨 the above-mentioned root portion 丨 a, the frame body 3 forms the stepped portion S, g. The thermal expansion caused by the solder when the body is subjected to solder is also absorbed by the stepped portion s described above, and the movable point body can be prevented from floating from the #mounting surface of the circuit board 4 and becoming uneven in height. The circuit board 4 is formed of a laminated board such as a resin, and the circuit board 4 is provided with a plurality of fixed contacts made of conductive carbon or copper cymbals (there is no misalignment in the figure. Also, 'fixed contacts are formed nearby' There is an opposite-butt soldering pad (not shown in the figure), as shown in Fig. 4, when Jiang Ke ^ u; Tian Zhi movable contact body is mounted on the surface of the circuit board 4, the above-mentioned frame body 7 μ The lower end portion of the vertical wall portion 3b of the a version J is mounted on a soldering pad with cream solder 5 or the like. When the movable contact body is mounted on the circuit board 4, the elastic body 丨 the button 丨The upper surface of d is a flat portion. Therefore, even when the chucking of the Bin Tie moving assembly device is applied from -11-582045 ⑺ Invention description, the flat portion of the button w can be attracted by suction with a suction nozzle. A plurality of movable contact bodies can be easily lined up at a predetermined position on the circuit board 4. The mountainous area can be formed by spray processing or the like on the flat portion of the button 1d. Prevents suction and suction The movable contact body is arranged so that the contact portion 2 of the protruding portion ieil formed on the lower side of the button Id of the elastic body 丨 and the contact portion 2 on the circuit board 4 are formed. The fixed contact is opposite, and the button is pressed by a button of an operation switch portion not shown in the above button Id, and the button is pressed; "= U is reversed, and the above-mentioned contact portion 2 is connected to the fixed contact. Touch it, and turn on the switch.;: Yeah, the air inside the hollow part Ib is exhausted through the groove part 设置 provided on the ㈣u, and the wall type 2: The turn is smoothly performed. The button switch performs a stable operation. In the structure of the movable contact body of the present invention, not only the frame 3 of the above-mentioned elastic body 丨 the root portion uji of the elastic body 丨 is formed into a cylindrical very mouth PU, but the upper plate 3a is used to restrict the above. Put the outer peripheral surface of the above root Ma, and limit the inner wall = :::: moving 'and use the lower end of the outer wall of the above standing wall portion 3b as the surface = ": Ya, and the above' in the movable contact body Tan ^ • tin part of the tin woman ^, so use the top of the frame 3 above When the vertical wall portion is mounted on the substrate 4, it is possible to install a plurality of movable contact bodies, and A tin can be installed on the parallel surface, so that the key distance of the operation switch portion can be narrowed, and the mounting area during surface mounting, Yaji's only need to be planted by using the upper plate 3b and the standing wall of the frame 3. * 12-(8)

The simple structure of the outer peripheral surface of 582045 L root canal 1 a can reliably perform the longitudinal position control of the above-mentioned elastic body 1. ~ In addition, in the above-mentioned embodiment, although the vertical wall portion 3b of the frame 3 is formed by a plurality of wall surfaces formed by a polygon (octagon in this embodiment), the structure is not limited to this, and may be It is made into an annular wall part along the outer periphery of the root part ^ of the above-mentioned elastic body. Of course, the same effect can be described in this case. Fig. 9 is a longitudinal sectional view showing the structure of a frame in a second embodiment of the movable contact body of the present invention. In addition, the same reference numerals are used for the items that have been shown in the drawings, and their descriptions are omitted. The difference between this inch size and the first embodiment is that there are some differences in the combined structure of the frame body 13 and the elasticity 俨 1 described above. That is, in the case of judging the present invention; the frame body 2 of the example 2 is used as a restriction of the above-mentioned root portion. Longitudinal: Widely formed: the upper plate 13a, which is an upper curved piece that bends the thin upper part of the vertical wall inward, and the convex part I u I u protruding toward the vertical wall side, the convex part 1 formed on the surface 1 3 c. Press Π, two! The raised portion 3c may be formed by squeezing from the outside of the standing wall portion ⑽, and a plurality of raised portions may be provided at appropriate positions of the standing wall portion 3b. j. Tian's 12: 1 The structure of the above-mentioned second embodiment 'because it serves as a second restricting portion that restricts the above-mentioned root portion two ... by moving the above-mentioned standing wall portion 丨 3 "... inwardly curved shape | k on 4 sides Side convexity ... The upper plate 13a, the inner structure of the vertical wall portion 13b, and the convex portion 13e are formed. Therefore, the vertical position can be restricted by a simple knot and k rows. (9) 582045

Fig. 10 is a block diagram of the third embodiment of the third embodiment of the movable contact structure of the present invention with a movable contact structure of the present invention. Moreover, the same member of the same oblique fL limb is used, and K is used with the same reference numerals using FIGS. 1 to 8. At this time, i Ye Ming * Xiong Nai is at this time, Yu Chuan, ... The difference between the second embodiment and the second embodiment is as follows: & The root of the sexual body I] The combination structure of the frame 23 and the upper body, 4 U exists. If the above frame of the third embodiment exists μ # ^ ". That is, on the I limb 2 "of the present invention, t I ^, which is an upper curved piece forming the vertical wall portion 7 讣 " as a restriction, is used to restrict the vertical movement of the old second restriction portion ^ root. , The upper part is bent inwardly, W 2 is pulled up, and the inner part of the blue curve is formed & τα. It is said that the lower plate 23c is formed by the ~? Part of the 'rising wall part 23b'.

Jt, Bu; +, the upper and lower plates 23c can be formed by bending from the lower worm portion of the extruded portion 23b, and the above-mentioned standing wall can be placed along the method. Ju Tian is provided with a plurality of parts: ,, v.- The structure of the third embodiment is described, because the length of w 4_f 1 a is good, and the second restricting part that restricts the movement of the above-mentioned root is called inward from the borrowing part. For example, ^ is the upper plate 23a formed by the upper and bow of the upright portion 23b, and the lower adjacent sides of ρ μ, +, and 23b are each formed by bending the inside of the upright wall portion α. / Α ~ 卜 槪 ZJC structure, so that the vertical position limitation can be surely and structurally. Moreover, the inner peripheral end of the upper plate 2 3a can be bent downward, and the elastic body, ... U is formed with a fitting groove so that it fits into the groove. ^ "Z1 longitudinal sectional view of the frame of the fourth embodiment of the movable charm of the present invention. Also, the same reference numerals are used for the members explained with m to _8, and the description is omitted. The difference from the first, second, and third embodiments is that there are some differences in the combined structure of the frame 33 and the root la of the upper 4 ping body, namely, the present invention -14 > 582045 (ιο) DESCRIPTION OF THE INVENTION The frame 33 of the fourth embodiment of the title page is formed by a first frame 33a covering the upper side of the root portion 1a and a second frame 3 讣 covering the lower side of the root portion 1a. At this time, the first frame body 33a and the second frame body 33b are formed separately. The first frame body 33a and the second frame body 33b sandwich the root portion from above and below, and restrict its longitudinal movement. If the structure of the fourth embodiment is adopted, since the root portion 4 is covered with

The upper frame aa 33a and the second frame 33b covering the lower side of the root u form the frame 33, and the first frame 33 & and the second frame I, bk are sandwiched between the above The root part 1 a fixes it, so even if the elastic body I causes thermal expansion due to the influence of heat during soldering, the above-mentioned root part is lost from above and below due to the above-mentioned frame wa and the upper second frame body 33] 3. Restriction of the scratches prevents the movable contact body from floating from the mounting surface of the circuit board 4 to cause uneven height. And in the above-mentioned embodiments, the frame can also be formed by extruding a metal plate and extruding I # I $

成 成 丨 Restriction section and second restriction section Q [Effect of the invention]

: It has a structure that can transform the connection of green and green. It is a "marginal carcass", formed by a connecting member such as the lower side of the bulge, and μ is hard at the root of the elastomer. The frame of the root of the leisure 'version; the frame is not only the first restricting portion of the outer peripheral surface of k I, but also includes the second restricting portion that restricts the longitudinal movement of the root to the surface area m, When standing on the vertical substrate of the solder part of the son-in-law of the clothing, it can be _ 肖 Α α This is fixed to the vertical wall part of the frame with the core 1 directly trapping the tin, so it can be -15, 582045

DESCRIPTION OF THE INVENTION Flyer The mounting area when mounting on a small surface allows the key distance (key p 11 c h) of the operation switch unit to be narrowed. In addition, since the frame body protrudes the lower end of the standing wall portion from the lower end of the root portion to form a stepped portion, even if the elastic body undergoes thermal expansion during soldering, the stepped portion is absorbed, so that the movable contact body can be prevented from floating.

In addition, the frame body is formed by blanking a metal plate and bending it integrally. The surface side of the vertical wall portion is used as a welding surface. The first limiting portion is formed by closely contacting the inner side surface of the vertical wall portion with the outer surface of the root portion. The simple structure certainly performs lateral position limitation. In addition, since the outer peripheral surface of the root portion is formed into a substantially circular shape, and the first restricting portion is formed by a wall surface formed of a polygon, when the elastic body is assembled into the frame, a part of the outer peripheral surface of the elastic body is deformed into the corner of the inner wall surface. Therefore, it is in a state of being firmly fitted, and it is possible to prevent the two from being separated during transportation or when the switch is assembled. In addition, since the outer shape of the housing can form a flat portion, the flat portion can be used to easily determine the position during surface mounting.

In addition, since the second restricting portion is formed by an upper curved piece formed by bending an upper portion of the vertical wall portion inward and a convex portion formed by protruding toward the rear side of the vertical wall portion, the vertical position can be surely performed with a simple structure. limit. In addition, since the second restricting portion is formed of an upper curved piece formed by bending an upper portion of the standing wall portion inward and a lower curved piece formed by bending the lower portion of the standing wall portion inward, the longitudinal direction can be surely performed with a similarly simple structure. Location restrictions. Since the frame is formed by the first frame covering the upper side of the root and the second frame covering the lower side of the root, the first frame and the second frame are clamped from the top to the bottom -16-(12) 582045 Description of the invention Bin page · 丨 Shang Shao will have thermal expansion caused by large, " persons, ten people, benzoin, u, dry matter, etc .; on the text, F inflammation is restricted by the roots of the person, so it can be approximated:-^ σ 7 The contact body sucks and attracts the contact body when the nozzle is mounted on the surface, and because the upper surface of the elastic body forms a reference flat portion, the circuit board can be easily mounted during surface mounting.

The bumps and bumps for suction and suction are bitter, so they can easily come off after being sucked with a suction nozzle. In addition, the structure of the switch device of the present invention includes a contact body, a circuit having a fixed contact point and a soldering pad for a push button switch formed by any one of the 9th method of the present invention. Substrate = fixed contact is opposed to 'Mounting the solder on the vertical wall part to the solder pad =: It is possible to reduce the size of the entire device. -[Brief description of the drawings] FIG. 丨 is a plan view of an embodiment of the present invention. ^ Movable contact body for text switch <

® 2 This invention is the same as _ 4 ^ ^ PS BB m…, a pitching cabinet for a movable contact body for pressing a switch. Figure, ‘The same push button switch of this 猞 ㈤ ㈤ Figure 4 shows the cargoer,” the bottom view of the moving contact body. , ', I * A longitudinal sectional view of the technical state of the same movable contact according to the present invention. Therefore, the circuit substrate is shown in FIG. 5. The top view of the homo-elastic body of the present invention. A longitudinal sectional view of an invented homo-elastomer. FIG. 7 is a front view of the same-frame body of the present invention. FIG. 8 is a bottom view of the same-frame body of the present invention. -17-582045 (13) Description of the invention continued Fig. 9 is a longitudinal sectional view of a second embodiment of a frame body mounted on an elastic body of the present invention. Fig. 10 is a longitudinal sectional view of a third embodiment of a frame body mounted on the elastic body of the present invention. Fig. 11 is a longitudinal sectional view of a fourth embodiment of a frame body mounted on the elastic body of the present invention. Fig. 2 is a perspective view of a movable contact body and a circuit board for a conventional push button switch. Fig. 13 is a cross-sectional view of the conventional circuit board mounted state. Vertical

Fig. 14 The movable contact body during the conventional surface mounting. The longitudinal sectional view of the representative symbols is illustrated. The elastic body la lb 1 c Id root hollow part elastic deformation part button

le If! g 2 3 3a 3b Projection part Concave part Groove part Contact part Frame upper wall part -18- 582045 (14) 3 c Corner part 4 Circuit board 5 Cream solder 13 Frame 13a Plate 1 3 b Upright wall portion 13c Raised portion 2 3 Frame body 23 a Upper plate 23 b Upright wall 杳 P 23c Lower plate.) J Frame body 3 3 a First frame body 3 3 b Second frame body S Step portion invention description Title page

Claims (1)

582045 House and application for patent application 1 A movable contact body for a push button switch, which is characterized by: An insulative elastomer with a dome-shaped swelling part that can be turned over, a contact part provided on the lower side of the i swelling part, and another member made of a material that is harder than the elastomer, and is mounted on the root of the elastomer Frame | Nikami C busy opening> becomes a cylindrical shape covering the outer peripheral surface of the root, _ has a first restricting portion that restricts the lateral movement of the root, a second restricting portion that restricts the vertical movement of the upper root, ' The wall part of the tin part. Temple W 2 ^ The movable contact for push button switch described in item 1 of the scope of patent application, the frame protrudes the lower end of the standing wall portion with respect to the root portion 2 to form a step portion. The movable contact body for the push button switch as described in the first item of the scope of the article: the frame body is punched out of a metal sheet and bent to form a body j. The surface side of the standing wall portion is used as a solder surface. As a result, the upper and lower surfaces are in close contact with the outer peripheral surface of the root, and the movable contact system for the push button switch described in item I: ^ 3 is described in detail. The outer peripheral surface of the root is substantially round. Shape, the wall surface formed by the shape described above is formed. 2 = 2 The range of the movable contact body for a push button switch according to item 1 in the range of 2 = 2. The upper limit bending piece formed by the upper part of the above-mentioned standing wall portion inward and the above-mentioned standing wall. The 6-portion of the convex side of the surface is formed. 582045 Applying for a brake range Bin Buy 6. The movable contact body for a push button switch according to item 1 of the scope of patent application, wherein the second restricting portion is an upper bent piece formed by bending an upper portion of the standing wall portion inward. And a lower curved piece formed by bending a lower portion of the vertical wall portion inward. 7. The movable contact body for a push button switch according to item 1 of the scope of patent application, wherein the frame body is formed by a first frame body covering the upper side of the root portion and a second frame body covering the lower side of the root portion, The root portion is sandwiched and fixed from above and below by the first frame and the second frame. 8. The movable contact body for a push button switch according to item 1 of the scope of patent application, wherein the upper surface of the elastic body is formed with a flat portion for suction of the nozzle during surface mounting. In the movable contact body for a push button switch described above, the flat portion is formed with a concave-convex portion for preventing adsorption with a suction nozzle. 1 0. A switch device, comprising: a circuit substrate having the movable contact body, fixed contact, and soldering pad for a push button switch as described in item 1 of the scope of patent application; The portion is opposed to the fixed contact, and the standing wall portion is soldered to the solder pad.