JPH02128332U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view showing the entire key switch according to an embodiment of the present invention, FIG. 2 is a rear view showing a state in which a part of the key switch is removed, and FIG. 3 is a front view showing the board in a reduced size. Figure 4 is a rear view showing the cylinder body;
Figures 5 and 6 are rear views showing the first rotor and second rotor, respectively, Figure 7 is a partially cutaway rear view showing the cylinder barrel, and Figures 8 to 11 are explanations of the operation of the key switch. 12 is a perspective view showing the entire conventional key switch, FIG. 13 is a longitudinal sectional view thereof, and FIG. 14 is a rear view showing the rotor. 11... Board, 12... Common contact portion, 13a,
13b, 13c, 13d... Contact portion, 15... Cylinder body, 19... Moderation groove (constituting the first moderation holding mechanism), 20... Moderation groove (constituting the second moderation holding mechanism), 22 ...first rotor, 2
2c... Moderation blade (constituting the first moderation holding mechanism), 22d... Moderation piece, 22f... Engagement groove, 2
2i...Sector window (notch), 23...Second rotor, 23c...Moderation blade (constituting the second moderation holding mechanism), 23d...Moderation piece, 23f...Engagement groove, 23i... ...Pedestal, 24...First contact piece, 2
5... Second contact piece, 26... Cylinder barrel,
26a...Keyhole, 27, 28, 29...Plate tumbler, 27a, 28a, 29a...Keyhole, 27b,
28b, 29b...Engaging end portion, 31...First duplicate key, 32...Second duplicate key, 33...Third duplicate key,
34...Fourth master key, 31b, 32b, 33b,
34b...Protrusion.

Claims (1)

[Scope of utility model registration request] a substrate having a common contact portion formed on a predetermined circle and a contact portion for switching operation provided at four locations on a circle concentric with the predetermined circle at predetermined angular intervals;
a cylinder body fixed to the substrate; a first rotor and a second rotor accommodated in the cylinder body individually rotatably and in a concentrically overlapping state;
a first contact piece that contacts the substrate and is fixed to the first rotor and performs a switching operation in response to rotation of the first rotor; and a notch formed along the circumferential direction of the first rotor. a second contact piece that protrudes toward the board through the notch, contacts the board, is fixed to the second rotor, and performs a switching operation in response to rotation of the second rotor; and a keyhole into which a duplicate key is inserted. a cylinder barrel which is rotatably provided in the cylinder body, and a tumbler which is slidable along the diameter direction of the cylinder barrel and rotatable together with the cylinder barrel; The first rotor and the second rotor are arranged at a plurality of positions spaced apart from each other by predetermined angular intervals between the first rotor and the second rotor in response to each switching operation of the first contact piece and the second contact piece. 2
1. A key switch comprising a first moderation holding mechanism and a second moderation holding mechanism each holding a moderation of a rotor.