Induction heating roller apparatus

• US 6,437,301 B1
• Filed: 09/27/2000
• Issued: 08/20/2002
• Est. Priority Date: 03/29/1999
• Status: Expired due to Term

• Current Assignee: Tokuden Co., Ltd.
• Original Assignee: Tokuden Co., Ltd.
• Inventors: Horie, Yukio, Okamoto, Kozo, Kitano, Yoshio
• Primary Examiner(s): Leung, Philip H.
• Application Number:
  US09/671,353
• Time in Patent Office: 692 Days
• Field of Search: 219/619, 219/647, 219/652, 219/469, 219/470, 219/471, 219/665, 219/663, 492/16, 492/46, 492/9, 492/10, 298/95, 298/951, 100/328, 100/334
• US Class Current: 219/619
• CPC Class Codes: F16C 19/52 with devices affected by abnormal or undesired conditions
• CPC Class Codes: F16C 19/55 with intermediate floating or independently-driven rings rotating at reduced speed or with other differential ball or roller bearings
• CPC Class Codes: F16C 21/00 Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement F16C17/24, F16C19/52 take precedence
• CPC Class Codes: F16C 39/02 using mechanical means
• CPC Class Codes: H05B 6/145 Heated rollers

Abstract

In an induction heating roller apparatus of the present invention, Rolling bearings 10 and a sliding bearings 14 are provided between drive shafts 2 of a roller body 1 and a support rod 9. When a trouble occurs in the rolling bearings 10, a rotational torque is transmitted from the drive shafts 2 through the rolling bearings 10 to the support rod 9. The sliding bearings 14 operate during the transmission of the rotational torque to the support rod 9, and the rolling bearings 10 slips relative to the support rod 9. The slip prevents that the support rod 9 co-rotates with the drive shafts.

Claims

1. An induction heating roller apparatus comprising:

a hollow roller;

driving shafts being integrally formed at both ends of said hollow roller;

an induction heating unit disposed within said hollow roller;

a support rod for supporting said induction heating unit, being inserted into said drive shafts;

rolling bearings for supporting said support rod on said drive shafts, wherein said induction heating unit is supported in a suspending fashion within said roller; and

at least one slide bearing for impeding the transmission of excessive rotational torque to said support rod, wherein said slide bearing is disposed at at least one of a first position between said support rod and rolling bearings and a second position between said drive shafts and rolling bearings.

2. The induction heating roller apparatus according to claim 1, further comprising a slide bearing being disposed between said support rod and rolling bearings and between said drive shaft and rolling bearings, respectively.

3. The induction heating roller apparatus according to claim 2, further comprising a detector for detecting a trouble of said rolling bearings.

4. The induction heating roller apparatus according to claim 1, further comprising a detector for detecting a trouble of said rolling bearings.