Massager

• US 5,088,474 A
• Filed: 12/11/1989
• Issued: 02/18/1992
• Est. Priority Date: 12/28/1988
• Status: Expired due to Term

• Current Assignee: Bio PIT Company Limited
• Original Assignee: Bio PIT Company Limited
• Inventors: Mabuchi, Seiya, Katsunuma, Tatsuo
• Primary Examiner(s): Apley, Richard J.
• Assistant Examiner(s): Cheng, Joe H.
• Application Number:
  US07/449,551
• Time in Patent Office: 799 Days
• Field of Search: 128/24.1-24.5, 128/32, 128/43, 128/44, 128/51, 128/52, 128/54, 128/55, 128/67
• US Class Current: 601/110
• CPC Class Codes: A61H 2201/0153 hand-held
• CPC Class Codes: A61H 2201/1418 Cam
• CPC Class Codes: A61H 2201/1669 moving along the body in a reciprocating manner
• CPC Class Codes: A61H 23/0254 with rotary motor
• CPC Class Codes: A61H 7/001 without substantial movement between the skin and the device

Abstract

A hand-held massager having a plurality of attachments; all the attachments being driven by a single drive unit via a rotating cam so that massaging is effected by increasing the massaging range and gently patting the skin surface.

Claims

1. A massager comprising:

pushing attachments;

drive means for reciprocating said pushing attachments, said drive means having a rotating cam means engaging with each of said pushing attachments, said rotating cam means formed in such a manner that a position of said pushing attachments in a reciprocating direction sequentially changes corresponding with a rotating angle position of said rotating cam means, a length of said reciprocation of said pushing attachments corresponding with a rotating angular position of said rotating cam means, said pushing attachments being sequentially driven by said rotating cam means, said rotating cam means having two crests, and a surface of said rotating cam means beyond each crest being inclined more steeply than said rotating cam means surface before each crest; and

independent energy storage means for each pushing attachment storing energy when corresponding said pushing attachment is retracted and releasing said stored energy when said corresponding pushing attachment is moved forward; and

an attachment spacer for controlling a range of said reciprocating pushing attachments.

2. A massager as set forth in claim 1 wherein:

said pushing attachments are three in number.

3. A massager as set forth in claim 1 wherein each of said pushing attachments having a pushing portion is formed into a semi-spherical shape.

4. A massager as set forth in claim 1 wherein each of said pushing attachments having a pushing portion is attached to an attachment connection and an attachment cushioning portion.

5. A massager as set forth in claim 4, wherein:

said attachment cushioning portion is made of rubber.

6. A massager comprising:

a pushing attachment; and

drive means for retracting said pushing attachment into the massager and for limiting movement of said pushing attachment out of the massager, the speed of said retracting of said pushing attachment into the massager being slower than the speed of said limiting of movement of said pushing attachment out of the massager.