TH64201A - Restart starter - Google Patents

Abstract

DC60 (10/07/46) Recoil starter, which causes a powered device to be engaged and connected to the crankshaft (C) of the engine (E), in a state where the recoil starter is mounted to the crankshaft (C) on the same side of the engine (E). When the crankshaft (C) is mounted there, the starter housing (1) is positioned on the inside of it, with the wheel support (4) protruding and aligned with the crankshaft (C). The recoil wheel (3), with the recoil rope (2) wound around it, and the cam (6), which transmits rotational force through a centrifugal unidirectional gear (8) to the crankshaft (C), are mounted rotatably on the wheel support (4) while it is engaged. The recoil starter, which is driven by a damping spring (12), is connected to the crankshaft (4) by a channel (16) that extends from its farther end near the crankshaft (C) to the outside of the starter housing (1). The drive shaft (D) of this device is coupled to the crankshaft (C) inside channel (16). The recoil starter, which drives the device by force, is coupled to the crankshaft (C) of the engine (E) in a position where the recoil starter is mounted to the crankshaft (C) on the same side of the engine (E). Once the crankshaft (C) is mounted there, the starter housing (1) is positioned on the inside of that channel. With the wheel support shaft (4) protruding and coaxial with the crankshaft (C), the recoil wheel (3) with the recoil rope (2) wound around it, and the cam (6) which transmits rotational force through a centrifugal unidirectional gear (8) to the crankshaft (C), is mounted rotatably on the wheel support shaft (4) while it is coupling, connected to rotate together via a damping spring (12). A slot (16) is created in the wheel support shaft (4) that extends from its distant end near the crankshaft (C) to the outside of the starter housing (1). The drive shaft (D) of this device is coupling, connected to the crankshaft (C) inside slot (16).

Claims (18)

1. A recoil starter consists of: - The starter housing, which is attached to one side of the engine where the end of the engine crankshaft is mounted; - A rotating wheel supported within the starter housing, with the recoil rope wound around it, one end of which is pulled out to the outside of the starter housing; - A cam, which is axially supported and rotates with the wheel, causing the engine crankshaft to rotate via a unidirectional mechanism; and - An elastic path between the wheel and the cam, allowing the wheel to rotate by its elastic force. The rotational force of the wheel, generated by the recoil rope, is transmitted to the cam through this elastic path; and - An axle supporting the wheel and cam, allowing them to rotate within the starter housing. - A channel will be created at the top in that location and will protrude from the inner surface of the starter housing towards the engine crankshaft; - A channel will be created through the center of the wheel support shaft in such a way that it extends from its distant end near the engine crankshaft to the outside of the starter housing; and - The drive shaft of the powered device, driven by the engine, positioned on the outside of the starter housing, will be meshed and connected to the engine crankshaft within this channel; - Where a ring plate will be attached to the starter housing, which will allow the wheel and cam to be guided by the outer circumference of each side of its surface against the ring plate, and in this way the wheel and cam are supported so that they do not separate from the wheel support shaft in the axial direction - the drive shaft (D) of the powered device which is driven. The engine (E), which is positioned on the outside of the starter housing (1,31), is coupled to the engine's (E) crankshaft (C) within the said compartment (16,46). 2. Recoil start as defined in Requisition 1, whereby the recoil-loaded pathway shall consist of a damper whose one end is connected to the aforementioned rope wheel, and whose other end is connected to the aforementioned cam, whereby the damper shall act to absorb vibrations resulting from changes in the engine starting load and shall transmit this force to the aforementioned cam. 3. Recoil starter as defined in claim 2, where such damper shall consist of a torsion spring coil, one end of which is attached to the aforementioned wheel and the other end of which is attached to the aforementioned cam. 4. Recoil starter as described in claim 2, whereby such damper shall be a coiled spring, one end of which is attached to the aforementioned rope wheel and the other end of which is attached to the aforementioned cam. 5. Recoil starter as defined in claim 2, whereby such unidirectional mechanism shall consist of a cam hook built on the surfaces along the outer rim of such cam and a centrifugal unidirectional gear mounted on a rotor attached to the engine crankshaft. The centrifugal unidirectional gear is engaged and disengaged from the cam hook by the centrifugal force generated by the rotation of the rotor. 6. Recoil starter as specified in claim 3, whereby such unidirectional mechanism shall consist of a cam hook built on a surface along the outer rim of such cam hook and a centrifugal unidirectional gear mounted on a rotor attached to the engine crankshaft. The centrifugal unidirectional gear is engaged and disengaged from the cam hook by the centrifugal force generated by the rotation of the rotor. 7. Recoil starter as specified in claim 4, whereby such unidirectional mechanism shall consist of a cam hook built on the surfaces along the outer rim of such cam and a centrifugal unidirectional gear located on a rotor which is attached to the engine crankshaft. The centrifugal unidirectional gear is engaged and disengaged from the cam hook by the centrifugal force generated by the rotation of the rotor. 8. Recoil Starter, which consists of: - The starter housing, which is attached to one side of the engine where the end of the engine crankshaft is mounted. - A rotating wheel supported within the starter housing, with the recoil rope wound around it, one end of which is pulled out to the outside of the starter housing. - A cam, which is axially supported and rotates with the rotating wheel, and which is rotated by the rotation of the rotating wheel to cause the engine crankshaft to rotate through a unidirectional mechanism. - A flexible path between the rotating wheel and the cam, allowing the rotating wheel to rotate by its elastic force, and the cam to rotate through this flexible path. - A drive wheel positioned between the rotating wheel and the cam, which allows the drive wheel to rotate in only one direction, via a unidirectional clutch located between the rotating wheel and the drive wheel. Where this elastic path is shaped into a force-storing channel to collect rotational force around the drive wheel, and where this force-storing channel is inserted between the drive wheel and the cam to collect the rotational force of the drive wheel, which is rotated by the drive wheel. This causes the cam to be driven by the rotational force collected in the force-storing channel, which then causes the engine crankshaft to rotate. The wheel support shaft supports the rotating drive wheel and cam. The cam in the starter housing is built on top and extends from the inner surface of the starter housing towards the engine crankshaft. An opening is created through the center of the wheel support shaft, extending from its end near the engine crankshaft out of the starter housing. A ring plate is attached to the starter housing, which guides the drive wheel and cam by the outer circumference of each side surface. The mechanism is braced against the aforementioned ring plate, and in this way, the drive wheel and cam are supported, preventing them from separating from the wheel support shaft in the axial direction. The drive shaft of the device, powered by the engine and positioned outside the starter housing, is connected to the engine crankshaft in the aforementioned opening. 9. Recoil starter as specified in claim 8, whereby the force storage pathway shall consist of a coiled spring coil whose one end is attached to the drive wheel and the other end to the aforementioned cam. 10. Recoil starter as defined in claim 9, which consists of a one-way gear mechanism consisting of teeth mounted on the outer edge of the drive wheel and a one-way gear supported on the starter housing, where the one-way gear engages with the teeth of the teeth, causing the one-way gear mechanism to allow the drive wheel to rotate in only one direction, starting the engine. 11. Recoil starter as specified in Claim 8, which consists of a one-way gear mechanism consisting of teeth mounted on the outer edge of the drive wheel and a one-way gear supported on the starter housing, where the one-way gear engages with the teeth of the teeth, causing the one-way gear mechanism to allow the drive wheel to rotate only in the direction of engine starting. 12. Recoil Starter, which consists of: - The starter housing, which is attached to one side of the engine, where the end of the engine crankshaft is mounted. - A rotating wheel supported within the starter housing, with the recoil rope wound around it, one end of which is pulled outside the starter housing. - A cam, which is axially supported and rotates with the wheel, causing the engine crankshaft to rotate via a unidirectional mechanism. - A flexible path between the wheel and the cam, allowing the wheel to rotate by its elastic force and the cam by which the wheel rotates. By pulling the recoil cord, the recoil is transmitted to the cam via a flexible pathway – the wheel support shaft is located on and extends from the inner surface of the starter housing towards the engine crankshaft, supporting the rotating wheel and cam within the starter housing. A ring plate is attached to the starter housing, causing the cam to be guided by its side against the ring. This prevents the wheel and cam from separating from the wheel support shaft in the axial direction. 13. Recoil starter, as specified in claim 12, where a channel is created through the center of the wheel support axle in such a way that it extends from its distant end near the engine crankshaft to the outside of the starter housing, and the drive shaft of the powered device driven by the engine, which is positioned on the outside of the starter housing, is meshed and connected to the engine crankshaft within that channel. 14. Recoil starter as specified in claim 12, where the recoil path shall consist of a damper whose one end is connected to a rope-wound wheel and whose other end is connected to a cam. The damper shall act to dampen the vibration resulting from changes in the engine starting load and shall transmit this force to the cam. 15. Recoil starter as defined in claim 14, where such damper shall consist of a torsion spring coil whose one end is attached to a spool and whose other end is attached to the aforementioned cam. 16. Recoil starter as defined in claim 14, where such damper is a coiled spring, one end of which is attached to a wheel and the other end to the cam. 17. Recoil starter as specified in claim 14, whereby such unidirectional mechanism shall consist of a cam hook built on the surfaces along the outer rim of such cam and a centrifugal unidirectional gear mounted on a rotor attached to the engine crankshaft. The centrifugal unidirectional gear is engaged and disengaged from the cam hook by the centrifugal force generated by the rotation of the rotor. 18. Recoil starter as specified in Requisition 12, which consists of a drive wheel positioned between the winding wheel and the cam, where the drive wheel is allowed to rotate in only one direction through a one-way clutch path positioned between the winding wheel and the drive wheel, where this elastic path is shaped as a storage path for storing the rotational force of the winding wheel, and where this storage path is positioned midway between the drive wheel and the cam to store the rotational force of the drive wheel acting on the winding wheel, and the cam is driven to rotate by the rotational force stored in this storage path to rotate the engine crankshaft.