JPH11206218A - Attaching structure of fixed blade holding member in lawn mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject attaching structure capable of improving attaching workability and preventing loss of an adjusting screw and a spring by constituting a fixed blade holding member, an adjusting screw and a spring so as to become integral at a previous stage in which they are positioned and fixed to a body. SOLUTION: This lawn mower is equipped with a rotating reel blade 11 supported on a lawn mower body and a fixing blade 13 attached so as to become integral to a fixed blade holding member 12, and the fixed blade-holding member 12 is rotatably attached to a body by using a supporting part as a support and the fixed blade-holding member 12 is positioned by an adjusting screw 16 locked by urging force of a spring 19. In the lawn mower, the fixed blade holding member 12, the adjusting screw 11 and the spring 19 are constituted so as to become integral at previous stage in which they are positioned and fixed to the body to provide the objective attaching structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a fixed blade holding member in a lawn mower.

[0002]

2. Description of the Related Art Conventionally, a fixed blade holding member in a lawn mower of this type is mounted by setting a separated adjusting screw, a spring, and a fixed blade holding member, and then maintaining the state by the installer himself. In this method, the spring is mounted on the main body, or the spring is mounted on the spring receiver and carefully pressed down from above with a fixed blade holding member and an adjusting screw to mount the spring.

[0003]

As described above, in the prior art, after the three members in the separated state are attached to each other, it is difficult and cautious, for example, that the installer himself must maintain the state. It was necessary work. Also, when the blade of this type of lawn mower becomes dull due to wear or chipping, it must be replaced.In this case, the fixed blade holding member is connected to the main body by the spindle, but the adjustment screw Since the spring and the spring are completely separated from each other, there is a risk of powder loss. Accordingly, an object of the present invention is to provide a mounting structure of a fixed blade holding member in a lawnmower that can improve mounting workability and prevent powder loss of an adjusting screw and a spring in view of the above-mentioned conventional drawbacks. It was done.

[0004]

In order to achieve the above-mentioned object, the structure according to the first aspect of the present invention is mounted on a lawn mower main body so as to be integrated with a rotating reel blade and a fixed blade holding member. The fixed blade holding member is rotatably mounted on the main body with the support portion as a fulcrum, and the fixed blade holding member is positioned by an adjusting screw which is prevented from loosening by the biasing force of a spring. The fixed blade holding member and the adjusting screw and the spring are integrated with each other before the positioning and fixing of the spring to the main body, the fixed blade holding member mounting structure in the lawnmower. It is the gist.

According to the present invention, since the three members of the fixed blade holding member, the adjusting screw and the spring are integrated at a stage before the main body is mounted on the main body, the mounting workability is improved. Also,
Even when the fixed blade holding member is detached from the main body again due to replacement of the reel blade or the like, since the three members remain integral, there is no danger of losing the adjusting screw and the spring.

The structure according to claim 2 is the structure according to claim 1, wherein both members are integrated by interposing an elastic member between the adjusting screw and the spring, and the head of the adjusting screw and the spring. The gist is a mounting structure of the fixed blade holding member in a lawnmower, wherein the fixed blade holding member is sandwiched at an upper end.

According to the present invention, there is no need to use a tool or the like for integrating the three members of the fixed blade holding member, the adjusting screw and the spring, and the effect according to the first aspect can be easily obtained. it can.

According to a third aspect of the present invention, there is provided a structure as set forth in the first aspect, wherein a cylindrical portion having a diameter larger than the screw diameter is provided between the head portion of the adjusting screw and the screw portion. The gist of the invention is a mounting structure of the fixed blade holding member, wherein the fixed blade holding member is configured to be integrated by press-fitting engagement, and the fixed blade holding member is sandwiched between the head of the adjusting screw and the upper end of the spring. It is.

According to the present invention, the effects of the first and second aspects of the present invention can be obtained without adding new parts for integrating the three members of the fixed blade holding member, the adjusting screw and the spring. Can be.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
It will be described based on. FIG. 1 shows the entire lawn mower 1, and a side cover 4 is provided on a side surface of a main body cowling 2. In the figure, 3 is an operation handle, 5 is a fixing screw for fixing the side cover 4, 6 is a dust bag for accommodating the cut grass, and 7 is a pivot pin serving as a rotation center of the side cover. .

FIG. 2 shows the mounting state of the fixed blade holding member 12, and the basic structure of the lawn mower 1 and the mounting structure of the fixed blade holding member 12 will be described with reference to FIG. First, the drive pulley 8 is rotated by rotation of a motor (not shown). The rotation of the driving pulley 8 is transmitted to a driven pulley 9 via a belt 10, and a reel blade 11 coaxially supported by the driven pulley 9 rotates. A fixed blade 13 attached to the fixed blade holding member 12 is disposed below the reel blade 11 (upward in FIG. 2). The fixed blade holding member 12 is supported on the main body side plate 1 by a pivot pin 14.
5 and is rotatably mounted on and fixed by an adjustment screw 16. At this time, a spring 19 is interposed between the fixed blade holding member 12 and the spring receiving surface 15a provided on the main body side plate 15 to prevent the adjustment screw from loosening, and urges both in a direction to separate them from each other.

To position and fix the fixed blade holding member 12 to the main body side cover, first, an adjusting screw 16 is passed through a through hole 17 provided in the fixed blade holding member 12, and an elastic member 18 is fitted from the tip of the adjusting screw. Push down to the position where it contacts the fixed blade holding member 12. At this point, the fixed blade holding member 1
2 and the adjusting screw 16 are integrated, and a spring 19
Are fitted to the elastic member 18 so that they are all integrated as shown in FIG. After this state, the adjustment screw 16 is screwed into the main body side plate 15 and fixed in position.

FIG. 4 shows a second embodiment. For mounting, a stepped adjusting screw 20 is passed through a through hole 17 provided in the fixed blade holding member 12, and a spring 21 is fitted to a stepped portion 20 a of the stepped adjusting screw 20. It is to be integrated by inserting.

[0014]

As described above, the mounting structure of the fixed blade holding member in the lawn mower of the present invention comprises a fixed blade holding member,
Since the three members of the adjusting screw and the spring are integrated before positioning and fixing to the main body, workability is improved at the time of initial mounting, and the fixed blade holding member is removed from the main body again by replacing the reel blade. At this time, since the three members remain integral, there is no possibility that the adjustment screw and the spring will be lost.

[Brief description of the drawings]

FIG. 1 is a side view of a lawn mower showing an embodiment of the present invention.

FIG. 2 is an enlarged view of an attached state of a fixed blade holding member of FIG. 1;

FIG. 3 is an enlarged view of an adjustment screw part of FIG. 2;

FIG. 4 is an enlarged view of a stepped adjusting screw portion according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lawn mower 11 ... Reel blade 12 ... Fixed blade holding member 13 ... Fixed blade 15 ... Main body side plate 16 ... Adjustment screw 17 ... Through hole 18 ... Elastic member 19 ... Spring 19a ... Spring upper end 20 ... Stepped adjustment screw 20a ... Step 21 ... Spring 21a ... Spring upper end

Claims (3)

[Claims] A fixed blade fixedly attached to a fixed blade holding member integrally with a fixed blade holding member, wherein the fixed blade holding member is pivotally mounted on the body with a support portion as a fulcrum. A lawn mower, wherein the fixed blade holding member, the adjusting screw and the spring are positioned on the main body in a configuration in which the fixed blade holding member is positioned by an adjusting screw which is mounted so as to be loosened by the biasing force of a spring. A fixed blade holding member mounting structure in a lawn mower, wherein the fixed blade holding member is configured to be integrated at a stage before being fixed. 2. The mounting structure for a fixed blade holding member according to claim 1, wherein both members are integrated by interposing an elastic member between the adjusting screw and the spring, and a head of the adjusting screw and the spring. A fixed blade holding member mounting structure, wherein a fixed blade holding member is sandwiched between upper ends. 3. The mounting structure for a fixed blade holding member according to claim 1, wherein a cylindrical portion having a diameter larger than a screw diameter is provided between a head portion of the adjusting screw and the screw portion, and an inner diameter of the spring is provided on the cylindrical portion. Characterized in that the two members are integrated by press-fitting the fixed blade holding member between the head of the adjusting screw and the upper end of the spring.