Hinge damper in opening/closing device

• US 20080010777A1
• Filed: 02/02/2007
• Published: 01/17/2008
• Est. Priority Date: 02/06/2006
• Status: Abandoned Application

• Current Assignee: Takayuki Kaneko, Tsutomu Katsumata
• Original Assignee: Takayuki Kaneko, Tsutomu Katsumata
• Inventors: Katsumata, Tsutomu, Kaneko, Takayuki
• Application Number:
  US11/701,549
• Publication Number:
  US 20080010777A1
• Time in Patent Office: Days
• US Class Current: 16/63
• CPC Class Codes: B60R 7/087 for stowing money or valuables, e.g. using safes
• CPC Class Codes: E05D 3/122 Gear hinges
• CPC Class Codes: E05F 5/00 Braking devices, e.g. checks; Stops; Buffers construction of pneumatic or liquid braking devices E05F3/00; braking devices, buffers or end stops on drawers for tables, cabinets or like furniture A47B88/473; combined with devices for holding wings open E05C17/00; devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing E05C17/04
• CPC Class Codes: E05Y 2201/21 Brakes
• CPC Class Codes: E05Y 2201/26 Mechanical friction
• CPC Class Codes: E05Y 2201/266 rotary
• CPC Class Codes: E05Y 2900/538 Interior lids
• CPC Class Codes: E05Y 2900/606 for electronic devices

Abstract

A hinge damper is comprised of a rotation axis that is rotated according to the rotation of a rotation member and is pivotally attached to a case to be able to rotate freely, a gearing that is attached to the rotation axis to be able to freely rotate while having an internal tooth, means for transferring the rotation of the open/close member to the gearing, a gear planet that is engaged with the internal tooth of the gearing, rotation control means that regulates the rotation of the gear planet so that its center performs circular locus movement around the rotation center of the gearing, and means that absorbs the rotation energy of the gearing.

Claims

1. A hinge damper of an opening/closing device comprising:

an attachment member attached to an apparatus body such as a copier, a support member that can freely rotate and support a open/close member such as a document pressing plate while being pivotally attached to the attachment member,

a compressed coil spring that is inserted between the attachment member and the support member while biasing the open/close member toward its opening direction, and

an elastic body such as an urethane elastomer foam, wherein a rotation axis that is rotated according to the rotation of a rotation member and is pivotally attached to a case to be able to rotate, a gearing that is attached to the rotation axis while having an internal tooth, means for transferring the rotation of the open/close member to the gearing, a gear planet that is engaged with the internal tooth of the gearing, rotation control means that regulates the rotation of the gear planet so that its center performs circular locus movement around the rotation center of the gearing, and means that absorb the rotation energy of the gearing are included.

2. The hinge damper of an opening/closing device according to claim 1, wherein the means that transfers the rotation of the open/close member to the gearing is a sector gear.

3. The hinge damper of an opening/closing device as claimed in claim 2, wherein the means that regulates the rotation of the gear planet includes an actuation pin that is implanted in the gear planet and a bush that has a hole to which the actuation pin is inserted so that the action of the pin is regulated.

4. The hinge damper of an opening/closing device as claimed in claim 3, wherein the means to absorb the rotation energy of the gearing has a friction tooth formed on the gearing and a plate planet having wave-shape periphery surface on which the friction tooth slides.

5. The hinge damper as claimed in claim 4, wherein the hinge damper is incorporated into the attachment member of the open/close member.

6. The hinge damper as claimed in claim 3, wherein the hinge damper is incorporated into the attachment member of the open/close member.

7. The hinge damper of an opening/closing device as claimed in claim 2, wherein the means to absorb the rotation energy of the gearing has a friction tooth formed on the gearing and a plate planet having wave-shape periphery surface on which the friction tooth slides.

8. The hinge damper as claimed in claim 7, wherein the hinge damper is incorporated into the attachment member of the open/close member.

9. The hinge damper of an opening/closing device as claimed in claim 1, wherein the means that regulates the rotation of the gear planet includes an actuation pin that is implanted in the gear planet and a bush that has a hole to which the actuation pin is inserted so that the action of the pin is regulated.

10. The hinge damper of an opening/closing device as claimed in claim 1, wherein the means to absorb the rotation energy of the gearing has a friction tooth formed on the gearing and a plate planet having wave-shape periphery surface on which the friction tooth slides.

11. The hinge damper as claimed in claim 1, wherein the hinge damper is incorporated into the attachment member of the open/close member.