JP3077216U - External starter motor type starter for engine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable even an elderly person to easily start a general-purpose engine using only a recoil starter. A starter for starting an engine, wherein a recoil type starter of an engine using a recoil type starter is detached, coupled to a protruding crankshaft 51, and rotated by driving a motor 10 to rotate the crankshaft 51. This makes it possible to start the engine. In addition, the starter 1 controls the starter motor 10, a mechanism for starting and stopping the starter motor, a speed reduction mechanism 12, 17, 18, 19, 20 for the starter motor, and a shaft rotation of the starter motor 10. Mechanism 12, 14, 17, 18, transmitting the rotation of the crankshaft 51
19, 20, 21, 22 and after the engine has started,
A mechanism 13 that does not transmit the rotation of the crankshaft 51 of the engine to the rotation of the shaft of the starter motor 10 may be provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a starter motor type starter for an engine, and particularly to an external starter motor type starter for an engine which can be easily installed outside a general-purpose engine having no starter using the starter motor and which can easily start the general-purpose engine. It is about.

[0002]

[Prior art]

 In commercial general-purpose engines, starters for starting them include a recoil starter that starts by pulling a rope by hand and a starter motor starter that starts using an electric starter motor. For general-purpose engines with large horsepower, starters with motor-driven starters are mostly used because starting with a recoil-type starter is difficult. On the other hand, in general-purpose engines with low horsepower, recoil starters can be started relatively easily, so only recoil starters are used.

[0003]

[Problems to be solved by the invention]

 However, if the elderly who operate the general-purpose engine using only the conventional recoil type starter are elderly people, it is often difficult to start the general-purpose engine using the starter that pulls the rope with the recoil type hand. However, engine manufacturers have not changed the general-purpose engine of the recoil type starter to a general-purpose engine of the starter motor type starter because of the major specification change of the general-purpose engine. As a result, the general-purpose engine of the recoil starter already owned by the elderly could not be made a general-purpose engine that can be started easily.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to enable even an elderly person to easily start a general-purpose engine using only a recoil starter.

[0005]

Means for Solving the Problems The present invention is a starter for starting an engine, in which a recoil starter of an engine using a recoil starter is detached and connected to a protruding crankshaft to drive a motor. This allows the engine to be started by rotating the crankshaft. A starter motor; a mechanism for starting and stopping the starter motor; a speed reduction mechanism for the starter motor; a mechanism for transmitting shaft rotation of the starter motor to rotation of a crankshaft of the engine; A mechanism that does not transmit the rotation of the crankshaft of the engine to the shaft rotation of the starter motor after the engine is started.

[0006]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings and the like. FIG. 1 is a plan view, partially in section, of an embodiment of an external starter motor type starter for an engine according to the present invention. FIG. 2 is a front view showing an embodiment of an external starter motor type starter of the engine according to the present invention, with a cover partially removed. A part of the chain is shown in a simplified manner. FIG. 3 is a schematic side view of a starter motor showing an embodiment of an external starter motor type starter of an engine according to the present invention, with a starter motor cover removed.

As shown in FIGS. 1 to 3, an external starter motor type starter 1 (hereinafter referred to as “starter 1”) for an engine according to an embodiment of the present invention starts and stops a commercially available starter motor 10 and starter motor 10. The starter motor start switch 25, which is a mechanism for starting the motor, the pinion 12, the gear 17, the sprockets 18, 20, and the chain 19, which are the speed reduction mechanism for the starter motor 10, and the rotation of the starter motor are changed to the rotation of the crank shaft 51 of the general-purpose engine 50. The mechanism for transmitting the rotation of the crank shaft 51 of the general-purpose engine 50 to the rotation of the starter motor after the start of the general-purpose engine 50 after the reduction mechanism, the shaft 14, the crank jig 21 and the both nuts 22, and the general-purpose engine 50 are started. The overrunning clutch 13 is provided.

The pinion 12 and the overrunning clutch 13 are provided in a commercially available starter motor 10. In addition, the transmission mechanism is not limited to a combination of gear drive and chain drive, but may be any mechanism that can transmit the rotation of the starter motor shaft 11 to the rotation of the crank shaft 51 of the general-purpose engine 50.

The shaft 14 is rotatably mounted on a cover 24 by using ball bearings 15 and 16, and a gear 17 and a sprocket 18 are mounted on the shaft 14. The sprocket 20 is attached to both nuts 22 and the crank jig 21.

Further, the starter 1 is provided with a cover 24, an engine stop switch 26, and the like. After the components of the recoil starter are removed outside the general-purpose engine 50 using the recoil starter, bolts and the like are used. The two nuts 22 and the crank jig 21 are attached to the crankshaft 51 of the general-purpose engine 50. In addition, the starter motor 10 is connected to the battery of the general-purpose engine 50 via the starter motor start switch 25, and the power supply to the electrical system of the general-purpose engine 50 can be cut off, for example, a battery. An engine stop switch 26 having a relay is connected between the positive electrode and the wiring.

The parts 52, 53, 54, 55 of the recoil starter provided in the general-purpose engine 50 are attached to the starter 1 with bolts 23 as shown in FIG. Even after being modified to a starter motor type starter system, a recoil type starter can be used together.

When the starter motor start switch 25 is depressed, a relay switch attached thereto is closed, and electricity is supplied to the starter motor 10 from the battery of the general-purpose engine 50 to start the starter motor 10. When the hand is released from the starter motor start switch 25, the button returns to the original position by the force of the spring, the relay switch is opened, and the supply of electricity from the battery is cut off to stop the starter motor 10.

When the engine stop switch 26 having a relay switch is turned on by turning its lever clockwise when the general-purpose engine 50 is started, the relay switch is closed and the general-purpose engine 50 is turned off. When power is supplied from the battery to the electrical system, and the lever is turned to the left while the general-purpose engine 50 is running, the relay switch is opened and the general-purpose engine 50 is turned off. Reference numeral 50 denotes a switch for stopping supply of electricity from the battery to the electrical system and stopping the general-purpose engine 50.

Next, the starting of the general-purpose engine 50 by the starter 1 will be described. When the starter motor 10 is started by pressing the button of the starter motor start switch 25, the electromagnet provided on the starter motor 10 is energized therewith, and the lever provided on the starter motor shaft 11 is moved by the lever moved by the electromagnetic stone. 1, the pinion 12 moves downward in FIG. 1, meshes with the gear 17, and the gear 17 rotates.

When the gear 17 rotates, a sprocket 18 attached to the same shaft 14 as the gear 17 rotates, and a sprocket 20 connected to the sprocket 20 by the sprocket rotates. The sprocket 20 is mounted on a crank jig 21 and both nuts 22. When the sprocket 20 rotates, the crankshaft 51 of the general-purpose engine 50 mounted on both nuts 22 rotates, and the general-purpose engine 50 starts. . After the general-purpose engine 50 is started, when the hand is released from the starter motor start switch 25, the starter motor 10 is stopped, and the lever provided on the starter motor 10 returns to the original state, and the pinion 12 is disengaged from the gear 17. .

After the general-purpose engine 50 is started, the starter motor shaft 11 is rotated by the general-purpose engine 50 in reverse until the hand is released from the starter motor start switch 25, but only when it is turned from the starter motor 10 side. Due to the action of the overrunning clutch 13 that transmits only the rotational force, the rotational force from the general-purpose engine 50 is not transmitted to the starter motor 10, and the starter motor 10 does not over rotate.

When the general-purpose engine 50 is stopped, the lever of the engine stop switch 26 is turned to the left to turn it off.

It should be noted that the general-purpose engine 50 may be a starter motor type starter type only without mounting the recoil starter type components 52, 53, 54, 55, etc. to the starter 1.

As described above, the starter 1 is easily attached to the outside of the recoil starter type general-purpose engine 50, and after the starter 1 is externally attached, the starter 1 starts the general-purpose engine 50. The general-purpose engine 50 could be started easily because no force was required to pull the rope in the recoil starter system. Therefore, even with a general-purpose engine of a recoil type starter that is already possessed, the starter 1 can be easily attached to the outside, and even the elderly can easily start the general-purpose engine.

[0020]

[Effect of the invention]

 According to the present invention, since the starter motor type starter can be easily attached to the outside of the general-purpose engine using only the recoil type starter, even the elderly can easily start the general-purpose engine.

[Brief description of the drawings]

FIG. 1 is a plan view, partially in section, of an embodiment of an external starter motor type starter of an engine according to the present invention.

FIG. 2 is a front view showing an embodiment of an external starter motor type starter of the engine according to the present invention, with a cover partially removed; Note that a part of the chain and the like is simply shown.

FIG. 3 is a schematic side view of a starter motor showing an embodiment of an external starter motor type starter for an engine according to the present invention, with a starter motor cover removed.

[Explanation of symbols]

 Reference Signs List 1 external starter motor type starter 10 starter motor 11 starter motor shaft 12 pinion 13 overrunning clutch 14 shaft 15, 16 ball bearing 17 gear 18, 20 sprocket 19 chain 21 crank jig 22 double nut 23 bolt 24 cover 25 starter motor start Switch 26 Engine stop switch 27 Starter motor cover 50 General-purpose engine 51 Crankshaft 52, 53, 54, 55 Parts of recoil starter

Claims (2)

[Utility model registration claims] 1. A starter for starting an engine, wherein a recoil starter of an engine using a recoil starter is detached, connected to a protruding crankshaft, and the crankshaft is rotated by a motor to start the engine. An external starter motor type starter for an engine, characterized in that: 2. A starter motor, a mechanism for starting and stopping the starter motor, a speed reduction mechanism for the starter motor, and a mechanism for transmitting shaft rotation of the starter motor to rotation of a crankshaft of the engine. The external starter motor type starter for an engine according to claim 1, further comprising: a mechanism that does not transmit rotation of a crankshaft of the engine to shaft rotation of the starter motor after the engine is started. .