JPH048344U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a switch device showing an embodiment of the present invention, Fig. 2 is a diagram for explaining the state of the switch device when a hook is placed, and Figs. 3 to 5 are a cross-sectional view of the switch device according to the present invention. Operation explanatory diagram of one embodiment of the device, No. 6
Figure a is a schematic partial sectional view for explaining another embodiment of the present invention, Figure 6 b is a perspective view showing an example of an elastic temperature-sensitive magnetic material, and Figures 7 a to d are other embodiments of the present invention. FIG. 8 is a perspective view showing a temperature-sensitive magnetic member used in the embodiment and a modification thereof, FIG. 8 is a diagram for explaining another embodiment of the present invention, and FIG. Figure b is a partially enlarged view of figure a, Figures 9a to 9c are explanatory diagrams of the operation when one embodiment of the present invention is applied to a switch device of another configuration, and Figure 10 is a diagram of a conventional switch device. The sectional view shown in FIG. 11 is a diagram for explaining the state of the conventional switch device when the hook is placed. 21... Placement part, 22... Base, 23... Reed switch device, 23a... Ferromagnetic member, 23
b...Reed switch, 23c...Permanent magnet, 2
9... Coil spring (elastic member), 31... Temperature-sensitive magnetic member.

Amendment 2.6.18 The scope of claims for utility model registration is amended as follows.

[Scope of Claim for Utility Model Registration] (1) A mounting part on which an object is placed, and a mounting base disposed below this mounting part, including a reed switch, a temperature-sensitive magnetic member, and a permanent magnet. is attached, a closed magnetic path is formed by the temperature-sensitive magnetic member and the permanent magnet , the weight of the placed object is detected and switching is performed, and the magnetic transformation effect accompanying the temperature change of the temperature-sensitive magnetic member is suppressed. In a switch device that detects the temperature of a placed object and performs switching, the temperature-sensitive magnetic member is attached to the mounting base via an elastic member, and the temperature-sensitive magnetic member is A switch device characterized by forming a closed magnetic path by moving members. (2) Attach a temperature-sensitive magnetic material member, a reed switch, a permanent magnet, and a magnetic material member to a mounting section on which an object is placed and a mounting base placed below this mounting section, and A closed magnetic path is formed by a warm magnetic member, a permanent magnet, and a magnetic member, and switching is performed by detecting the weight of the placed object, and the magnetic transformation effect accompanying temperature changes of the temperature-sensitive magnetic member is utilized. In a switch device that performs switching by detecting the temperature of a placed object, the magnetic member is attached to the mounting base via an elastic member, and a closed magnetic path is created by movement of the magnetic member as the mounting portion moves. A switch device characterized by forming. (3) Claim 1 , wherein the magnetic member is a ferromagnetic material.
The switch device described in .

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A reed switch, a temperature-sensitive magnetic member, a permanent magnet, a magnetic A closed magnetic path is formed by the temperature-sensitive magnetic member, a permanent magnet, and the magnetic member, and switching is performed by detecting the weight of the placed object, and temperature changes in the temperature-sensitive magnetic member are performed. In a switch device that detects the temperature of a placed object and performs switching by utilizing a magnetic transformation effect associated with the temperature-sensitive magnetic material, the temperature-sensitive magnetic member is attached to the mounting base via an elastic member, and the temperature-sensitive magnetic member is attached to the mounting base through an elastic member, and the temperature-sensitive magnetic member is attached to the mounting base through an elastic member. A switch device characterized in that a closed magnetic path is formed by the accompanying movement of the temperature-sensitive magnetic member. (2) Attach the mounting part for placing the object, the mounting base placed below this mounting part, the temperature-sensitive magnetic member, the reed switch, the permanent magnet, and the magnetic member, and A closed magnetic path is formed by a warm magnetic member, a permanent magnet, and a magnetic member, and switching is performed by detecting the weight of the placed object, and the magnetic transformation effect accompanying temperature changes of the temperature-sensitive magnetic member is utilized. In a switch device that performs switching by detecting the temperature of a placed object, the magnetic member is attached to the mounting base via an elastic member, and a closed magnetic path is created by movement of the magnetic member as the mounting portion moves. A switch device characterized by forming. (3) Claim 1, wherein the magnetic member is a ferromagnetic material.
Or the switch device according to 2.