TWI229361B - Switch - Google Patents

Abstract

The purpose of the present invention is to provide a small, low-cost switch with good productivity and operational characteristics. It comprises: a housing formed of insulative material in the opening at the front; a lever inside the opening, which is supported by a rotational axis on the housing; a movable contact installed on the housing, which is formed of elastic, thin metal plate; a fixed contact installed on the housing, and which can contact or separate from the d moveable contact. The moveable contact has a support section and an arm section at the free end to rotate by using the support section as the fulcrum. When the lever rotates, the free end side of the arm section in the moveable contact is rotated by the pressing of the lever, so as to proceed the switching of contact. Therefore, the moveable contact is installed on the housing. Compared with the prior art that the moveable contact is installed on the lever, the moveable contact of the present invention can be easily installed and has good productivity.

Description

(2) 1229361 前述桿具有，被可轉動地軸支撐的軸支撐部，從該軸 支撐部延伸形成的操作部’以及’在該操作部的前端部與 前述軸支撐部之間，設置在前述操作部上的按壓部；用前 述按壓部按壓前述臂部而進行轉動。 5 .如申請專利範圍第4項所記載之開關，其中： 在前述操作部設置了可以收容前述臂部的自由端部側 的凹部。 6 .如申請專利範圍第4項所記載之開關，其中： 前述桿的則述軸支撐部在前述外殼上被撳鈕式固定， 從而該桿被安裝在前述外殻上。 7 .如申請專利範圍第4項所記載之開關，其中： 前述桿的前述軸支撐部與前述臂部的前述支撐部相對 前述外殻被設置在同一側，在以前述軸支撐部作爲支點轉 動前述操作部時’以前述支撐部作爲支點轉動的前述臂部 的轉動方向與前述操作部的轉動方向相同。 8 ·如申請專利範圍第4項所記載之開關，其中： 在前述操作部的外周面上設置了在前述軸支撐部的軸 線方向上延伸的平坦面，使前述平坦面接觸到前述外殻， 從而阻止前述桿的恢復方向的轉動。 9 ·如申請專利範圍第1項所記載之開關，其中： 前述固定接點由具有彈性的金屬薄板形成，在前述外 殼上設置了阻止前述固定接點的接點部的移動的壁部。 1 〇 ·如申請專利範圍第9項所記載之開關，其中： 形成箱形的前述外殼內被前述臂部分隔而具有至少兩 -2- 1229361 (3) 個分隔室，前述可動接點與前述固定接點被設置在不同的 前述分隔室內。 1 1 .如申請專利範圍第1項所記載之開關，其中： 前述桿的前述操作部以堵住前述開放部的方式被設置。(2) 1229361 The aforementioned lever has a shaft support portion rotatably supported by a shaft, and an operation portion 'from which the shaft support portion is extended' and 'is provided between the front end portion of the operation portion and the shaft support portion and is provided in the operation Pressing part on the part; press the arm part with the pressing part to rotate. 5. The switch according to item 4 of the scope of patent application, wherein the operation portion is provided with a recessed portion that can receive the free end side of the arm portion. 6. The switch according to item 4 of the scope of patent application, wherein: the shaft support portion of the rod is fixed by a push-button on the casing, so that the rod is mounted on the casing. 7. The switch according to item 4 of the scope of patent application, wherein: the shaft support portion of the lever and the support portion of the arm portion are provided on the same side with respect to the housing, and rotate with the shaft support portion as a fulcrum In the case of the operation portion, the rotation direction of the arm portion using the support portion as a fulcrum is the same as the rotation direction of the operation portion. 8. The switch according to item 4 of the scope of patent application, wherein: a flat surface extending in an axial direction of the shaft support portion is provided on an outer peripheral surface of the operation portion, so that the flat surface contacts the housing, Thereby, the rotation of the aforementioned lever in the recovery direction is prevented. 9. The switch according to item 1 of the scope of patent application, wherein: the fixed contact is formed of a thin metal plate having elasticity, and a wall portion for preventing the movement of the contact portion of the fixed contact is provided on the housing. 1 〇 The switch as described in item 9 of the scope of patent application, wherein: the above-mentioned case forming a box shape is separated by the above-mentioned arm portion and has at least two -2- 1229361 (3) compartments, the movable contact and the aforementioned The fixed contacts are provided in different aforementioned compartments. 1 1. The switch according to item 1 of the scope of patent application, wherein: the operation portion of the lever is provided so as to block the opening portion.