JP3118133U - Reciprocating type cutting blade device - Google Patents

Abstract

[Objective] In a reciprocating type cutting blade device of a mower, a center line of three operating rod mounting members (a center line of two bevel gear members) X and a 10 reciprocating blade driving shaft for mounting a driving shaft and an operating rod of a mower power unit The center line Y is made to substantially coincide with each other so as to eliminate the disadvantage of mowing work.
[Structure] A two-gear gear member and a five-gear gear member, each having a drive shaft connecting member fixed with a screw, are engaged. The 5 spur gear member and the 6 spur gear member are connected, and the 6 spur gear member is engaged with the 7 spur gear member. Further, the 7 spur gear member and the 8 gear member are connected, and the 8 gear member is engaged with the 9 gear member. A 10 reciprocating cutting blade drive shaft having 11 and 12 eccentric cams fixed thereto is fixed to the 9 bevel gear member with screws.
[Selection] Figure 2

Description

Detailed description of the invention

Industrial application fields

  The present invention relates to a reciprocating type cutting blade device used for weeds such as rice paddies and irrigation canals, turf mowing, and the like.

  Conventionally, as shown in FIG. 3, the center line T for attaching the driving shaft of the mower power unit and the reciprocating cutting blade driving shaft center line W of the reciprocating type cutting blade device are largely shifted.

Problems that the device tries to solve

  In the above-described conventional reciprocating type cutting blade device, since the drive shaft mounting center line of the mower power unit and the center line of the reciprocating cutting blade drive shaft of the reciprocating type cutting blade device are a combination of gear trains, The shaft center and the shaft center of the reciprocating cutting blade of the reciprocating cutting blade device are misaligned, resulting in a disadvantage that the swing cannot be performed with a good balance between left and right.

Means for solving the problem

  In the present invention, in order to solve the above-described problem, the drive shaft of the mower power unit and the center line of the operating rod, that is, the drive shaft and operating rod of the mower power unit are attached to the gear train shown in FIG. The conventional mowing operation is performed by substantially matching the center line X of the three operation rod mounting members of the reciprocating type cutting blade device (center line of the two bevel gear members) X with the center line Y of the reciprocating cutting blade drive shaft of the reciprocating type cutting blade device. To eliminate the inconvenience.

An embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1 and FIG. 2, A is the appearance of the reciprocating type cutting blade device of the present invention, 3 is an operating rod mounting member for connecting the driving shaft and operating rod of the mower, and the mower power unit (see FIG. (Not shown).
The 3 operating rod mounting member and the 4 reciprocating cutting blade device main body are rotatable, and are configured so that the mowing operation can be performed in an easy posture by appropriately changing the angle of the cutting blade.
(1) A two-gear gear member and a five-gear gear member, to which a drive shaft connecting member is fixed with a screw, are engaged. The 5 spur gear member and the 6 spur gear member are connected (may be integrated), and the 6 spur gear member is engaged with the 7 spur gear member. Further, the 7 spur gear member and the 8 spur gear member are connected (may be integrated), and the 8 spur gear member is engaged with the 9 spur gear member. A 10 reciprocating cutting blade drive shaft having 11 and 12 eccentric cams fixed (may be integrated) is fixed to the 9 bevel gear member with a screw.
The operation of the above example will be described. Power from a mower power unit (not shown) is received by one drive shaft connecting member, and the two gear gear members are rotated. The rotational force of the two gear members is sequentially transmitted to the five gear members, the six spur gear members, the seven spur gear members, the eight spur gear members, and the nine spur gear members. Further, a 10 reciprocating cutting blade drive is fixed to the 9 bevel gear member with a screw, and the rotational force is transmitted to the 11 and 12 eccentric cams fixed to the 10 reciprocating cutting blade drive. Although not shown in detail below, the reciprocating cutting blade device of the present invention is configured to reciprocate the 13 and 14 reciprocating cutting blades from the 11 and 12 eccentric cams via the reciprocating member. The 10 reciprocating blade drive axis and the 13 and 14 reciprocating blade axes are configured to coincide with each other.

Effect of device

According to the present invention, the center line of the three operation rod mounting members (center line of the two gear gear members) X for mounting the drive shaft and the operation rod of the mower power unit and the 10 reciprocating blade driving shaft center line of the reciprocating type cutting blade device It becomes possible to make Y substantially coincide. As a result, the shaft center of the mowing machine and the shaft center of the reciprocating cutting blade of the reciprocating cutting blade device, which are necessary for the mowing work performed while swinging left and right, are almost in a straight line, so that the mowing work can be performed while swinging with good left-right balance. The reciprocating type cutting blade device in which the shaft center of the conventional mowing machine and the axis center of the reciprocating type cutting blade device of the reciprocating type cutting blade device are displaced, that is, the inconvenience of the mowing work by the left and right unbalanced mowing machine is eliminated. There is an effect.

    Side view of a reciprocating cutting blade device incorporating the present invention     The top view in the MN arrow line of FIG.     Partial sectional view of the conventional type compared with the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive shaft connection member 2 Bevel gear member 3 Operation rod attachment member 4 Reciprocating cutting blade apparatus main body 5 Bevel gear member 6 Spur gear member 7 Spur gear member 8 Bevel gear member 9 Bevel gear member 10 Reciprocating cutting blade drive shaft 11 Eccentric cam 12 Eccentric cam 13 Reciprocating cutting blade 14 Reciprocating cutting blade X Center line of 3 operating rod mounting members for mounting the drive shaft and operating rod of the mower power unit (center line of 2 bulk gear members)
Center line of Y10 reciprocating cutting blade drive shaft

Claims (1)

  In the reciprocating type cutting blade device of the mower, the center line of the three operating rod mounting members (center line of the two gear gear members) X and the center line of the 10 reciprocating cutting blade driving shaft for mounting the driving shaft and operating rod of the mower power unit In order to make Y substantially coincide with each other, drive gear trains are arranged in the order of 2 gear members, 5 gear members, 6 spur gear members, 7 spur gear members, 8 spur gear members, 9 spur gear members, and 10 reciprocating cutting blade drive shafts. A reciprocating cutting blade device configured to be engaged and driven in combination.

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