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Title:
【考案の名称】VTRのピンチローラの滑り軸承型自動調芯支承構造
Document Type and Number:
Japanese Patent JP2547009
Kind Code:
Y2
Abstract:
An automatially tiltable small roller structure of slide bearing type for video tape recorders which has a small roller (10) including an elastic rubber cylinder (11) and a sleeve (12) integral with the inner periphery of the cylinder, the sleeve having a lower inside diameter surface (13) and an upper inside diameter surface (14) with a smaller diameter the former to form a stepped portion (15) inside the sleeve (12), an outer race (21) fitted to the stepped portion, a row of bearing balls (23) fitted in the outer race and located at a middle point between the opposite ends of the sleeve, a shaft (30) having a lower shaft portion (31), an upper shaft portion (32) having a smaller diameter than the lower shaft portion and a tapered surface portion (33) extending between the two shaft portions, the bearing balls being provided such that they are brought into rolling contact with the tapered surface, a region of the upper shaft portion adjacent thereto and the inner peripheral surface of the outer race and first and second plastic sleeves (34), (35) pressed onto the opposite end portion of the shaft, respectively and having a small coefficient of friction and a small coefficient of wear. The second sleeve (35) has at an outer end thereof a flange (36) having a larger diameter than the upper inside diameter surface (14). The roller structure also has a lower annular clearance between the first plastic sleeve (34) and the lower inside diameter surface (13) and an upper annular clearance between the second plastic sleeve (35) and the upper inside diameter surface (14).

Inventors:
Shigeo Takahashi
Application Number:
JP7208992U
Publication Date:
September 03, 1997
Filing Date:
September 24, 1992
Export Citation:
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Assignee:
Shigeo Takahashi
International Classes:
F16C13/00; F16C13/02; F16C23/08; G11B15/29; G11B15/60; (IPC1-7): F16C13/02
Domestic Patent References:
JP6366751A
JP59117914A
JP6239246U
JP5845420U
JP62124919U
JP631844U
Attorney, Agent or Firm:
Yamada Masakuni



 
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