Patent US5230675A successfully refreshed from Google Patents.
US5230675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gymnastic pedalling apparatus
Assignee: Vichy Industrial Co Ltd
•
Filing: 1992-11-25
•
Granted: 1993-07-27
•
Expires: 2012-11-25
Abstract
Abstract A gymnastic pedalling apparatus comprising a base frame, a front board fastened to the base frame, a base board fastened to the base frame and situated behind the front board, two long bars pivoted coaxially to the front board, two pedals fastened respectively to free ends of the two long bars, two hydraulic cylinders pivoted to base frame and the two long bars, a lifting board pivoted to the base board, a threaded rod having one end fastened to the lifting board and having another end penetrating through the top of the base board, a nut screwed onto the threaded rod in a manner that the nut remains over the top of the base board for adjusting the height of the lifting board, a sleeve fastened horizontally at the bottom portion of the lifting board, a rotating shaft fitted into the sleeve, a long support arm and a short support arm fastened respectively to the rotating shaft, and two rollers pivoted respectively to the free ends of the two support arms and situated respectively under the two long bars.
Inventors
- 👤 C-D Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:46
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/0048; A63B22/0056; A63B21/00; A63B21/008; A63B21/0083; A63B2208/00; A63B2208/02; A63B2208/0204; A63B2225/00; A63B2225/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
407 words
A gymnastic pedalling apparatus, comprising: a base frame having two arm portions parallel to each other; a front board fastened to said two arm portions; a base board having front and rear walls parallel to each other and having a top wall connecting with said front and rear walls, with said top wall provided with a through hole, and with said front and rear walls provided respectively with two elongate holes, said base board being fastened to said two arm portions and situated behind said front board; two long bars pivoted coaxially to said front board in a manner that said two long bars are capable of swinging upwards and downwards; two pedals, each of which is fastened to a free end of one of said two long bars; two hydraulic cylinders, each of which has an end that is pivoted to one of said two arm portions, and each of which has another end that is pivoted to one of said two long bars; a lifting board having two walls parallel to each other, with each of said two walls provided with two through holes arranged coaxially, said lifting board being mounted in said base board by means of two bolts which are put through said through holes and said elongate holes of said base board, thereby making said lifting board capable of making an up-and-down movement along an axial direction of said elongate hole; a threaded rod having an end that is fastened to a top wall of said lifting board and having another end that is put through said through hole of said top wall of said base board; a nut screwed onto said threaded rod in a manner that said nut is situated over said top wall of said base board; a sleeve fastened horizontally at a lower portion of said lifting board; a rotating shaft fitted into an axial hole of said sleeve; a long support arm having an end that is fastened to said rotating shaft and having another end that faces a rear end of said base frame; a short support arm having an end that is fastened to said rotating shaft and having another end that faces said front board; and two rollers pivoted respectively to said another end of said long support arm and to said another end of said short support arm in a manner that said two rollers are situated respectively under said two long bars.
Claim 2
Dependent Claim
407 words
A gymnastic pedalling apparatus, comprising: a base frame having two arm portions parallel to each other; a front board fastened to said two arm portions; a base board having front and rear walls parallel to each other and having a top wall connecting with said front and rear walls, with said top wall provided with a through hole, and with said front and rear walls provided respectively with two elongate holes, said base board being fastened to said two arm portions and situated behind said front board; two long bars pivoted coaxially to said front board in a manner that said two long bars are capable of swinging upwards and downwards; two pedals, each of which is fastened to a free end of one of said two long bars; two hydraulic cylinders, each of which has an end that is pivoted to one of said two arm portions, and each of which has another end that is pivoted to one of said two long bars; a lifting board having two walls parallel to each other, with each of said two walls provided with two through holes arranged coaxially, said lifting board being mounted in said base board by means of two bolts which are put through said through holes and said elongate holes of said base board, thereby making said lifting board capable of making an up-and-down movement along an axial direction of said elongate hole; a threaded rod having an end that is fastened to a top wall of said lifting board and having another end that is put through said through hole of said top wall of said base board; a nut screwed onto said threaded rod in a manner that said nut is situated over said top wall of said base board; a sleeve fastened horizontally at a lower portion of said lifting board; a rotating shaft fitted into an axial hole of said sleeve; a long support arm having an end that is fastened to said rotating shaft and having another end that faces a rear end of said base frame; a short support arm having an end that is fastened to said rotating shaft and having another end that faces said front board; and two rollers pivoted respectively to said another end of said long support arm and to said another end of said short support arm in a manner that said two rollers are situated respectively under said two long bars.
Claim 3
Dependent Claim
24 words
The gymnastic pedalling apparatus of claim 1 wherein said long support arm and said short support arm form an upward angle of 15 degrees.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-26 | 1997-01-25 | 1997-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-26 | 2001-01-25 | 2001-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-26 | 2005-01-25 | 2005-07-27 | $7700.00 | Window Closed / Lapsed |