CA2381027A1 - Winding tool cam ratchet - Google Patents
Winding tool cam ratchet Download PDFInfo
- Publication number
- CA2381027A1 CA2381027A1 CA 2381027 CA2381027A CA2381027A1 CA 2381027 A1 CA2381027 A1 CA 2381027A1 CA 2381027 CA2381027 CA 2381027 CA 2381027 A CA2381027 A CA 2381027A CA 2381027 A1 CA2381027 A1 CA 2381027A1
- Authority
- CA
- Canada
- Prior art keywords
- shaft
- winding tool
- cam
- ring
- cam ratchet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
- B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/62—Counterweighting arrangements
Description
WINDING TOOL CAM RATCHET
Field of the invention:
The ratchet system of the present invention has been developed to facilitate the installation of doors for mini warehouses and commercial rolling steel doors, but may be applied to other types of installations where a torque must be applied on shaft and maintained.
Background of the invention:
All garage doors presently in use are counterbalanced by different means. Some use a counterweight while others use a spring under traction or torsion. These counterbalancing systems are required to lower the strength required by the user or the motorized system to raise and lower the door. !n order to put the spring under tension, the installer must wind the spring and maintain this torque or tension in the spring by a separate system. During installation, installers must wind the shaft which is under tension. Usually, a pipe wrench is used: The present invention concerns a winding tool cam ratchet which is easier to use and speeds up installation and adjustment with respect to a pipe wrench.
Description of a preferred embodiment:
Figure 1 presents the invention in its preferred embodiment. The tool includes a ring (1) with a hole of a diameter corresponding to the shaft to be wound. A
cam
Field of the invention:
The ratchet system of the present invention has been developed to facilitate the installation of doors for mini warehouses and commercial rolling steel doors, but may be applied to other types of installations where a torque must be applied on shaft and maintained.
Background of the invention:
All garage doors presently in use are counterbalanced by different means. Some use a counterweight while others use a spring under traction or torsion. These counterbalancing systems are required to lower the strength required by the user or the motorized system to raise and lower the door. !n order to put the spring under tension, the installer must wind the spring and maintain this torque or tension in the spring by a separate system. During installation, installers must wind the shaft which is under tension. Usually, a pipe wrench is used: The present invention concerns a winding tool cam ratchet which is easier to use and speeds up installation and adjustment with respect to a pipe wrench.
Description of a preferred embodiment:
Figure 1 presents the invention in its preferred embodiment. The tool includes a ring (1) with a hole of a diameter corresponding to the shaft to be wound. A
cam
(2) is mounted eccentrically on the ring (1 ), and maintained under tension by a spring (3). An arm (5) is attached to the ring by welding or rivet.
In Figure 2, the tool (1) is installed about a shaft (10) which is usually maintained under tension. The user then rotates the ring (1) around the shaft in a way such that the cam (2) blocks on contact with the shaft (10) and forces the shaft to follow the movement of the ring. If the ring is turned in the opposite way the cam is free and the ring may turn without having the shaft (10) following the same movement:
Various modifications can be brought to the tool of the present invention, such as:
-The tool may be provided with more than one cam.
-It may also be done in two sections. One to secure the shaft and allow the other ring to turn while the shaft is immobile.
-The cam may or not be provided with teeth to increase friction between shaft and cam.
- The ring, arm and cam may have different shapes according to specific needs.
Although the present invention has been explained hereinabove by way of a preferred embodiment thereof, it should be pointed out that any modifications to this preferred embodiment within the scope of the appended claims is not deemed to alter or change the nature and scope of the present invention.
In Figure 2, the tool (1) is installed about a shaft (10) which is usually maintained under tension. The user then rotates the ring (1) around the shaft in a way such that the cam (2) blocks on contact with the shaft (10) and forces the shaft to follow the movement of the ring. If the ring is turned in the opposite way the cam is free and the ring may turn without having the shaft (10) following the same movement:
Various modifications can be brought to the tool of the present invention, such as:
-The tool may be provided with more than one cam.
-It may also be done in two sections. One to secure the shaft and allow the other ring to turn while the shaft is immobile.
-The cam may or not be provided with teeth to increase friction between shaft and cam.
- The ring, arm and cam may have different shapes according to specific needs.
Although the present invention has been explained hereinabove by way of a preferred embodiment thereof, it should be pointed out that any modifications to this preferred embodiment within the scope of the appended claims is not deemed to alter or change the nature and scope of the present invention.
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2381027 CA2381027A1 (en) | 2002-04-10 | 2002-04-10 | Winding tool cam ratchet |
| US10/411,529 US20040020609A1 (en) | 2002-04-10 | 2003-04-10 | Ratchet-like system for winding a rolling door assembly |
| CA002425108A CA2425108A1 (en) | 2002-04-10 | 2003-04-10 | Rachet system for winding a rolling door assembly |
| US11/473,720 US20070012410A1 (en) | 2002-04-10 | 2006-06-23 | Ratchet system for winding a rolling door assembly |
| US12/960,274 US20110240236A1 (en) | 2002-04-10 | 2010-12-03 | Ratchet system for winding a rolling door assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2381027 CA2381027A1 (en) | 2002-04-10 | 2002-04-10 | Winding tool cam ratchet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2381027A1 true CA2381027A1 (en) | 2003-10-10 |
Family
ID=29220482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2381027 Abandoned CA2381027A1 (en) | 2002-04-10 | 2002-04-10 | Winding tool cam ratchet |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2381027A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415241A (en) * | 2016-01-01 | 2016-03-23 | 三峡大学 | Device and method for open-close self-energizing-force rotating clamping |
-
2002
- 2002-04-10 CA CA 2381027 patent/CA2381027A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415241A (en) * | 2016-01-01 | 2016-03-23 | 三峡大学 | Device and method for open-close self-energizing-force rotating clamping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |