A sealing device for a human-machine dialogue element intended to be fixed through a wall, the device including a seal formed in a ring around an axis, the seal including a first annular edge and a second annular edge. The second edge follows a path including a plurality of chicanes so as to form at least one concave part delimiting a bearing zone on one face of the seal and at least one convex part delimiting a disengagement zone on the face of the seal to circumvent a positioning element of the seal.

A sealing device for a human-machine dialogue element intended to be fixed through a wall, the device including a seal formed in a ring around an axis, the seal including a first annular edge and a second annular edge. The second edge follows a path including a plurality of chicanes so as to form at least one concave part delimiting a bearing zone on one face of the seal and at least one convex part delimiting a disengagement zone on the face of the seal to circumvent a positioning element of the seal.

A switch device includes an operation switch including a switch knob formed integrally with a recess configured to allow a finger to be inserted. The operation switch includes a detector configured to detect a change in a physical amount caused by operation of the switch knob.

A switch device includes an operation switch including a switch knob formed integrally with a recess configured to allow a finger to be inserted. The operation switch includes a detector configured to detect a change in a physical amount caused by operation of the switch knob.

A keycap, an illuminating keyswitch and a method for manufacturing the same are provided. The illuminating keyswitch comprises a base plate, a printed circuit board, a light emitting element, a keycap and a lifting support structure. The printed circuit board is disposed on the base plate. The light emitting element electrically is connected to the printed circuit board. The keycap is disposed on the light emitting element. The lifting support structure is disposed between the base plate and the keycap. The keycap comprises a first injection layer and a second injection layer. The second injection layer covers the first injection layer. The light emitting element is configured to correspond to the first injection layer or the second injection layer. The keyswitch of the present invention covers the first injection layer through the second injection layer, so that the surface of the key cap is flat, thereby facilitating subsequent processing.

A keycap, an illuminating keyswitch and a method for manufacturing the same are provided. The illuminating keyswitch comprises a base plate, a printed circuit board, a light emitting element, a keycap and a lifting support structure. The printed circuit board is disposed on the base plate. The light emitting element electrically is connected to the printed circuit board. The keycap is disposed on the light emitting element. The lifting support structure is disposed between the base plate and the keycap. The keycap comprises a first injection layer and a second injection layer. The second injection layer covers the first injection layer. The light emitting element is configured to correspond to the first injection layer or the second injection layer. The keyswitch of the present invention covers the first injection layer through the second injection layer, so that the surface of the key cap is flat, thereby facilitating subsequent processing.

A switch device capable of preventing an occurrence of contact noise and wobbling of a stabilizer member to a bearing is provided. The key switch includes the stabilizer member supported between a key top and a base plate. The stabilizer member includes a first shaft portion rotatably supported on the lower surface side of the key top and a second shaft portion, which has a rotation axis parallel to the rotation axis of the first shaft portion and is rotatably supported by a bearing provided on the upper surface side of the base plate. The membrane sheet has at least a lower contact sheet having a cut-out shaped portion in a position corresponding to a position in which the second shaft portion is provided in a plane view and an upper contact sheet placed in an upper layer than the lower contact sheet to cover the cut-out shaped portion.

A luminous keyboard includes a key module, a light guide plate, a top-view light-emitting element and a light-shading element. The top-view light-emitting element emits a light beam. The light guide plate is located under the key module. The top-view light-emitting element is located under the light guide plate. A light-outputting surface of the top-view light-emitting element is contacted with the light guide plate. The light-shading element is disposed on the light guide plate for shading the light beam. A portion of the light-shading element is inserted into the light guide plate opening and formed as a reflective part in the light guide plate opening. After the light beam is projected on the reflective part and reflected by the reflective part, the light beam is transferred within the light guide plate and projected to the key module.

A cap-covered keyboard apparatus is disclosed. The proposed cap-covered keyboard apparatus includes plural independent keycaps, each of which has a main body with a top surface, and plural cover layers, each of which at least covers the respective top surface of the corresponding main body, and has a first surface attached to the top surface and a second surface printed with a character (or symbol), wherein the plural cover layers are independent from one another.

A cap-covered keyboard apparatus is disclosed. The proposed cap-covered keyboard apparatus includes plural independent keycaps, each of which has a main body with a top surface, and plural cover layers, each of which at least covers the respective top surface of the corresponding main body, and has a first surface attached to the top surface and a second surface printed with a character (or symbol), wherein the plural cover layers are independent from one another.