JPH0591242U - Mower - Google Patents

Abstract

(57) [Summary] [Purpose] The top and sides of field ridges are adapted to the shape of the ridges to enable safe and effective mowing with a reciprocating blade. [Structure] A transmission shaft 4 in the front-rear direction of the machine is provided at the front of the machine equipped with wheels 1, an engine 2, a handle 3, etc., and a transmission case 5 extending in a direction orthogonal to the transmission shaft 4.
The lower part of the support frame 6 is pivotally supported so as to be rotatable about the transmission shaft 4, and the reciprocating cutting blade 7 is laterally provided at the front part of the support frame 6 extending forward from the upper part of the transmission case 5. In addition to being installed, the transmission case 5 can be transmitted to the cutting blade 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mower capable of effectively cutting grass by adapting the upper and side surfaces of the ridge in the field to the shape of the ridge.

[0002]

[Prior Art]

 In this type of conventional lawn mower, a reciprocating cutting blade is horizontally installed in front of a machine equipped with wheels, an engine, a handle, etc. in parallel with the axle.

[0003]

[Problems to be solved by the device]

 However, there is no problem when cutting the upper surface of the field ridge, but when cutting the sloped side of a raised ridge or the curved side that becomes a bowl-like shape, the cutting blade can be placed along the side to keep the machine horizontal. It has to be tilted in any direction, which makes it unstable and dangerous, difficult to maneuver, and the ridges are broken by wheels, and workability is poor.

[0004]

[Means for Solving the Problems]

 The present invention has been devised to solve such problems and to effectively mow the ridge side.Therefore, the front part of the machine equipped with wheels, engine, steering wheel, etc. And a lower portion of the transmission case extending in a direction orthogonal to the transmission shaft is rotatably and pivotally supported so as to be rotatable about the transmission shaft, and extends forward from an upper portion of the transmission case. A reciprocating cutting blade is laterally provided on the front portion of the supporting frame that is projected, and is configured to be capable of being transmitted to the cutting blade from the transmission case.

[0005]

[Action]

 Therefore, even if the transmission case rotates, the cutting blade can be effectively driven from the transmission shaft through the transmission case, and the transmission case can be rotated around the transmission shaft while the machine body is traveling on the upper surface of the ridge. When it is moved, the cutting blade installed horizontally in front of the transmission case will gradually tilt laterally while being offset to the side of the ridge, so that even if the ridge is bowl-shaped, it will follow that side. Since it can be tilted, it can effectively mow.

[0006]

【Example】

 1 to 3 show a first embodiment, and FIG. 1 is a side view schematically showing a mower, which extends in the front-rear direction of the machine body at an upper portion of an axle case 8 on which an axle 1a of a wheel 1 is mounted. A transmission shaft 4 is connected to the axle 1a via a worm wheel 9, and a rear portion of the transmission shaft 4 is connected to an engine 2 mounted below a handle 3 at the rear of the body via a reduction gear group 10. A support cylinder 11 projecting rearward from a lower portion of a transmission case 5 that is transmission-coupled and extends in a direction orthogonal to the transmission shaft 4 is rotatably fitted to a cylindrical portion 8a at a front portion of the axle case 8, A belt 15 is looped over the pulley 13 of the transmission shaft 12 and the pulley 14 of the transmission shaft 4 which are vertically mounted inside the transmission case 5, and extend forward from the upper portion of the transmission case 5. A reciprocating cutting blade 7 is installed horizontally on the front of the support frame 6, and A transmission member 16 for driving the cutting blade 7 is transmission-coupled to the transmission shaft 12 projecting forward from the upper portion of the case 5, and a ring gear 17 fixedly provided on the outer periphery of the support cylinder 11 has the axle case 8 of the axle case 8. Although the pinion 19 of the forward / reverse rotation motor 18 fixed above is meshed, the transmission case 5 may be rotatable by operating means such as a lever.

Therefore, even if the transmission case 5 is rotated, the cutting blade 7 can be effectively driven from the transmission shaft 4 through the transmission case 5, and the motor is maintained until the machine body is advanced to the upper surface of the ridge A. When 18 is rotated in the forward or reverse direction, the transmission case 5 rotates about the transmission shaft 4 as shown by the phantom line in FIG. 3, and the cutting blade 7 provided in front of the transmission case 5 is As shown by the phantom line in Fig. 4, the lateral direction of the ridge A is gradually offset while being offset to the side face side, and when the transmission case 5 is rotated 90 degrees in the lateral direction, the virtual case is shown in Fig. 1. As shown by the line, the cutting blade 7 stands upright, and as shown in Fig. 4, even if the ridge A is bowl-shaped, it can be tilted along the side surface of the ridge A to effectively mow the grass. ..

FIG. 5 and FIG. 6 show a second embodiment, which has substantially the same structure as the above-mentioned embodiment as indicated by the same reference numeral, but the transmission shaft 1b for the axle is mounted on the upper portion of the axle case 8. , The axle 1 is mounted on the lower portion of the transmission case 20 vertically extending from one end of the transmission shaft 1b, and although not shown, a motor for rotating the transmission case 5 is provided on a lateral side portion of the axle case 8. Configure.

[0009]

[Effect of the device]

 As described above, according to the present invention, even if the transmission case 5 rotates, the cutting blade 7 can be effectively driven from the transmission shaft 4 through the inside of the transmission case 5, and the machine body can be advanced on the upper surface of the ridge. , When the transmission case 5 is rotated around the transmission shaft 4, the cutting blade 7 provided in front of the transmission case 5 is gradually offset in the lateral side of the ridge and gradually tilts in the lateral direction. Even if the bowl is bowl-shaped, it can be tilted along the side of the bowl, which enables stable, safe and easy operation of the machine while effectively mowing the ridges, which is a feature that can be suitably implemented. Have.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a mower according to a first embodiment.

FIG. 2 is a side sectional view showing a part of FIG.

FIG. 3 is a front view showing a transmission case.

FIG. 4 is an explanatory diagram showing an operating state of a cutting blade.

FIG. 5 is a side view schematically showing a mower according to a second embodiment.

FIG. 6 is a side sectional view showing a part of FIG.

[Explanation of symbols]

 1 Wheel 2 Engine 3 Handle 4 Transmission Shaft 5 Transmission Case 6 Support Frame 7 Cutting Blade

Claims (1)

[Scope of utility model registration request] 1. A transmission case 4 is provided at the front of a machine equipped with a wheel 1, an engine 2, a handle 3, etc. in the front-rear direction of the machine and extends in a direction orthogonal to the transmission shaft.
The lower part of the support frame 6 is pivotally supported so as to be rotatable about the transmission shaft 4 and pivotally supported, and a reciprocating cutting blade 7 is laterally provided at the front part of a support frame 6 extending forward from the upper part of the transmission case 5. A lawn mower characterized by being installed and being capable of being transmitted from the transmission case 5 to the cutting blade 7.