Coaxially Extending Arm for Door Closing Operator

• US 20160060941A1
• Filed: 09/03/2014
• Published: 03/03/2016
• Est. Priority Date: 09/03/2014
• Status: Abandoned Application

• Current Assignee: Gary Glenwood Ingham, Wesley G. Ingham
• Original Assignee: Gary Glenwood Ingham, Wesley G. Ingham
• Inventors: Ingham, Wesley G., Ingham, Gary Glenwood
• Application Number:
  US14/475,717
• Publication Number:
  US 20160060941A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E05F 15/53 for swinging wings
• CPC Class Codes: E05F 15/611 for swinging wings
• CPC Class Codes: E05F 15/63 operated by swinging arms
• CPC Class Codes: E05F 3/00 Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices construction of non-pneumatic or non-liquid braking devices E05F5/00; friction devices in hinges E05D11/08
• CPC Class Codes: E05F 3/02 with pneumatic piston brakes rotary type E05F3/14
• CPC Class Codes: E05F 3/04 with liquid piston brakes rotary type E05F3/14
• CPC Class Codes: E05F 3/22 Additional arrangements for closers, e.g. for holding the wing in opened or other position
• CPC Class Codes: E05Y 2201/624 Arms
• CPC Class Codes: E05Y 2800/372 Telescopical

Abstract

An arm for connecting a mounting foot to a motor in a door closer system having two segments between which a junction is formed that allows the segments low-friction coaxially-restricted extension and retraction motions relative to each other. A motor shaft connection at the attachment end of the first arm segment transmits rotational force from a shaft of a door closer motor, and a mounting foot at the opposite end of the second arm segment communicates the rotational force from the first arm segment to the mounting foot.

Claims

1. An arm for connecting a mounting foot to a motor in a door closer system comprising:

a first arm segment having a junction end and an attachment end;

a second arm segment having a junction end and an attachment end;

a junction formed between the first and second arms at the junction ends which allows the segments low-friction coaxially-restricted extension and retraction motions relative to each other;

a motor shaft connection disposed at the attachment end of the first arm segment for transmitting rotational force from a shaft of a door closer motor; and

a mounting foot disposed at the attachment end of the second arm segment for communicating the rotational force from the first arm segment via the junction to the mounting foot.

2. The arm as set forth in claim 1 wherein the first arm segment is received into the second arm segment to form the junction.

3. The arm as set forth in claim 1 wherein the second arm segment is received into the first arm segment to form the junction.

4. The arm as set forth in claim 1 wherein the mounting foot is configured for attachment to a static building element.

5. The arm as set forth in claim 4 wherein the static building element is selected from the group consisting of a door frame, a wall, a floor, and a window.

6. The arm as set forth in claim 1 wherein the mounting foot is configured for attachment to a door.

7. The arm as set forth in claim 1 further comprising a dé

tente element for limiting a maximum extended length of the arm.

8. The arm as set forth in claim 1 further comprising a dé

tente element limiting a minimum retracted length of the arm.

9. The arm as set forth in claim 1 further comprising a hold-open element for locking the arm in a selected length of extension.

10. A method of manufacture of an arm for connecting a mounting foot to a motor in a door closer system comprising:

forming a first arm segment having a junction end and an attachment end;

forming a second arm segment having a junction end and an attachment end;

engaging the first arm segment to the second arm segment at the junction ends to allow low-friction coaxially-restricted extension and retraction motions relative to each other;

disposing a motor shaft connection at the attachment end of the first arm segment for transmitting rotational force from a shaft of a door closer motor; and

disposing a mounting foot at the attachment end of the second arm segment for communicating the rotational force from the first arm segment via the junction to the mounting foot.

11. The method as set forth in claim 10 wherein the engaging comprises receiving the first arm segment into the second arm segment to form the junction.

12. The method as set forth in claim 10 wherein the engaging comprises receiving the second arm segment into the first arm segment to form the junction.

13. The method as set forth in claim 10 wherein the mounting foot is configured for attachment to a static building element.

14. The method as set forth in claim 13 wherein the static building element is selected from the group consisting of a door frame, a wall, a floor, and a window.

15. The method as set forth in claim 10 wherein the mounting foot is configured for attachment to a door.

16. The method as set forth in claim 10 further comprising providing a dé

tente element for limiting a maximum extended length of the arm.

17. The method as set forth in claim 10 further comprising providing a dé

tente element limiting a minimum retracted length of the arm.

18. The method as set forth in claim 10 further comprising providing a hold-open element for locking the arm in a selected length of extension.