JP2510563Y2 - Engine starter for backpack type brush cutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an engine starting device for a backpack-type brush cutter that starts an engine on a backpack frame.

[Prior Art] Conventionally, as shown in FIG. 9, an engine (20) that can rotate about a vertical axis is mounted on a backpack frame (10), and the engine (20 The grip portion (25e) of the operating handle (25) that engages with the outer peripheral side of the recoil starter (24) provided on the side portion of (20) is further away from the axial center (P) of the vertical axis than the base side thereof. It had a structure that was easy to operate.

[Problems to be solved by the invention] Therefore, when the engine (20) rotates about the axis (P), the operation handle (25) interferes with the back support pad (12) on the backpack frame (10) side. To avoid this, the distance between the shaft center (P) and the backpack frame (10) side must be increased as indicated by L1, and as a result, the moment to the backpack frame (10) in the backpacked state increases. , The worker feels heavy and the fatigue increases, resulting in poor workability,
In addition, during operation, the operation handle (25), which is in a state of largely projecting, is caught on the branches and leaves, and the workability of mowing is deteriorated.
It had such a problem.

[Means for Solving the Problems] The present invention solves such a problem, and reduces the burden on the engine with a starter so that the operator can perform brush cutting work with good workability.
A rope outlet is formed on the outer circumference of the recoil starter provided on the side of the engine, and an operation handle connected to the rope is provided near the outside of the rope outlet, and when not operating, the rope outlet is Lock the grip of the operating handle close to the outer circumference of the engine so that it is equal to or shorter than the distance between the base of the operating handle that is located near the outside of the mouth and the axis of the vertical axis. It is configured so that it can be installed.

[Operation] Therefore, since the operating handle is brought closer to the rotational axis side of the engine, even if the engine rotates about the axial center, the operating handle does not interfere with the backpack frame side, and the engine side becomes the conventional type. On the other hand, since it can be brought closer to the backpack frame side, the operator can bear it on his / her back with less burden. In addition, the operation handle does not hit the branches and leaves such as shrubs, and the workability is good. Can be done.

Example Next, an example shown in the drawings will be described.

1 to 5, FIG. 2 shows a side view of a brush cutter, and the backpack-type brush cutter (1) has a back support pad (12) on the front standing side of a side L-shaped backpack frame (10). ) Is installed, and both shoulder straps (11) are connected to both sides of the front side, and equipped with an air cleaner (26), a fuel tank (27), a muffler (29), etc., and a recoil starter (2) on the side.
From the lower part of the engine (20) provided with 4), a vertical shaft (21) is hung from a fixing plate (22) fixed to the engine (20) with bolts (23), and the vertical axis (21) of the backpack frame (10) is A hard rubber (16) serving as a bearing is mounted on a support cylinder (14) which is vertically installed by being fixed by a bolt nut (15) above a support plate (13) which is installed between the lower parts of the vertical shaft. A flexible shaft that fits (21), is fitted with spacers (21a) and (21b), is locked by a snap ring (21c), and extends from the clutch housing side of the side of the engine (20) ( 4) is a control rod (3) having both grips (5)
The cutting blade (2) is interlockingly connected to the rear end side and the cutting blade (2) is interlockingly connected to the front end side of the operating rod (3) to have the same structure as the conventional structure.

A rope outlet (24d) is formed on the outer periphery of the recoil starter (24) provided on the side of the engine (20), and the tip of the rope (25a) fed out from the rope outlet (24d) is operated by a handle ( Although it is inserted and connected to the inside of 25), a supporting protrusion (24a) is formed on the outer peripheral side of the rope withdrawal opening (24d), and a grip handle (25e) is provided on the free end side. ) Of the support projection (24b).
A recess (25f) that can be fitted to a) is formed, and the support protrusion (24f
When the recess (25f) is fitted in (a), the grip portion (25e) of the operating handle (25) approaches the axial center (P) of the vertical shaft (21) from the base (25b) side and becomes a short distance. It is attached and configured so that it can be locked.

6 and 7 show the second embodiment, in which the base portion (25b) of the operating handle (25) is formed into an elliptical shape, and the elliptical bottom surface is provided outside the rope withdrawal opening (24d). A concave portion that forms a tapered surface is formed from the periphery of the (24b) to the periphery of the daruma-shaped opening (24c), and the dimension of the base portion (25b) of the operation handle (25) in the longitudinal direction with respect to the dimension of the inlet portion of the concave portion. When the base portion (25b) falls into the bottom portion (24b) and engages, the grip portion (25e) of the operating handle (25) becomes smaller than the base portion (25b).
It is configured so that it can be locked closer to the center side of the vertical shaft (21) from the side.

Further, FIG. 8 shows a third embodiment in which a knot is formed at a portion of the rope (25a) near the operation handle (25) as shown in (a), and the outer surface of the recoil starter (24) is shown. Magnet (25) that can be absorbed by the magnet (29) embedded in the side
d) is embedded in the grip (25e), and both magnets (29) (25
Due to the magnetic attraction of d), the grip portion (25e) is configured to be able to approach and lock from the base portion (25b) side toward the center side of the vertical shaft (21).

Therefore, as seen in each of the embodiments, the grip portion (25e) of the operating handle (25) is located closer to the vertical axis (2) than the base portion (25b) side.
Since it is configured so that it can be locked by approaching it in the axial center (P) direction of 1), it can be operated even if the engine (20) rotates around the axial center (P) as shown in FIG. The handle (25) will not interfere with the backpack frame (10) side so that the shaft center (P) can approach the backpack frame (10) side within a short distance (L2). The engine (2
Even if (0) is rotated, the operation handle (25) does not interfere with the branches and leaves of the shrub or the like, so that workability can be improved.

[Effects of the Invention] As described above, according to the present invention, the grip portion (25) of the operation handle (25) is
e) is the vertical axis (21) of the engine (20) from the base (25b) side
Since it is locked to the outer side of the rope withdrawal opening (24d) so as to approach the shaft center (P) side or to be equally separated from the shaft center (P) side, even if the engine (20) rotates about the shaft center, 25) so that it does not interfere with the backpack frame (10) side and does not hit the branches and leaves of shrubs during work, and the engine (20) side is placed on the backpack frame (1).
It is possible to bring the machine closer to the (0) side, so that the operator is less tired and can carry the machine body on the back with good workability, and it has a feature that it can be suitably implemented with a simple structure.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part of an embodiment of the present invention, FIG. 2 is a side view of a backpack-type brush cutter, FIG. 3 is a partial sectional view of FIG. 1, and FIG. Sectional view taken along line IV-IV, FIG.
FIG. 6 is a sectional view of part of the drawing, FIG. 6 is a sectional view of the second embodiment, and FIG.
The drawing shows a drawing of a part of FIG. 6 viewed from the direction of the line VII, FIG. 8 shows a third embodiment, and FIG. 9 shows a conventional example. (21) …… Vertical axis, (20) …… Engine (10) …… Backpack frame, (24) …… Recoil starter (24d) …… Rope outlet (25) …… Operating handle, (25e) …… Grip (25b) …… base, (25a) …… rope

Claims (1)

(57) [Scope of utility model registration request] 1. A backpack-type brush cutter having an engine (20) capable of rotating around a vertical shaft (21) mounted on a backpack frame (10), the side wall of the engine (20) being provided. The recoil starter (24) has a rope outlet (24
d) is formed, and an operation handle (25) connected to the rope (25a) is provided near the outside of the rope withdrawal opening (24d), and outside the rope withdrawal opening (24d) when not in operation. The base of the operating handle (25) (25
The grip portion (25e) of the operating handle (25) is set to be equal to or shorter than the distance between b) and the axis (P) of the vertical axis (21).
An engine starter characterized in that the engine is mounted so that the engine can be brought close to the outer periphery of the engine (20) and locked.