Emergency switch for an exercise apparatus

• US 6,875,157 B1
• Filed: 02/17/2004
• Issued: 04/05/2005
• Est. Priority Date: 02/17/2004
• Status: Expired due to Fees

• Current Assignee: Proxxon SA
• Original Assignee: Proxxon SA
• Inventors: Wang, Leao, Wu, Peter
• Primary Examiner(s): RICHMAN, GLENN E
• Application Number:
  US10/779,371
• Time in Patent Office: 413 Days
• Field of Search: 482 1- 9, 482900-902
• US Class Current: 482/8
• CPC Class Codes: A61H 2201/0176 By stopping operation
• CPC Class Codes: A63B 2071/0081 Stopping the operation of the apparatus
• CPC Class Codes: A63B 22/0235 driven by a motor
• CPC Class Codes: A63B 2225/72 Means preventing unauthorised use, e.g. by lowering a tennis net
• CPC Class Codes: H01H 2009/068 with switches mounted on a handlebar, e.g. for motorcycles, fork lift trucks, etc.
• CPC Class Codes: H01H 3/022 Emergency operating parts, e.g. for stop-switch in dangerous conditions
• CPC Class Codes: H01H 3/0226 operated by a pull cord

Abstract

The invention relates to an emergency switch for an exercise apparatus having a housing, a safety plug and a microswitch. The safety plug passes through an insertion slot of the housing and is inwardly inserted to the inside of the housing for an electric connection by means of the contact of the distal end of an extension part of the safety plug to a contact key of the microswitch. Meanwhile, an electric disconnection is created when the safety plug is extracted. In addition, a cut-off button with a push rod is interposed between the safety plug and the microswitch. Besides, the cut-off button projects outwardly from the housing. When the cut-off button is pressed down, the push rod makes use of its slanting guide face to separate the safety plug from the contact key of the microswitch into a disconnection state.

Claims

1. An emergency switch for an exercise apparatus comprising:

a) a housing;

b) a microswitch disposed within the housing;

c) a safety plug passing through an insertion slot of the housing and being inwardly inserted to the inside of the housing for an electric connection by means of the contact of the distal end of an extension part of the safety plug to a contact key of the microswitch while an electric disconnection is created in extracting the safety plug; and

d) a cut-off button with a push rod interposed between the safety plug and the microswitch, the cut-off button projecting outwardly from the housing, the push rod having a slanting guide face;

whereby, when the cut-off button is pressed down, the push rod makes use of its slanting guide face to separate the safety plug from the contact key of the microswitch into a disconnection state.