JPH0140431Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a support device for supporting a blade cover that covers a blade in a mower used for cutting grass.

(Problems to be Solved by the Invention) The purpose of the present invention is to solve the problem that the support mechanism of the blade cover that covers the blade of a mower is complicated and the assembly of the blade is complicated.

(Means for Solving the Problems) The present invention is based on a blade cover provided to cover the upper and rear portions of the rear of the turning circle of the blade, which is supported horizontally to the lower end of the housing of the mower body. a locking part formed to slidably engage with a first engaging part formed on the housing; and a second engaging part formed on the housing to engage with the first engaging part. The gist of the present invention is to provide a support device that includes a lock portion formed to maintain the engagement state with the locking portion.

(Function) The device of the present invention slidably engages a first engaging portion formed on the housing of the mower body and a locking portion formed on the blade cover, and a second engaging portion formed on the housing. and a lock portion formed on the blade cover to lock the engagement state between the first engaging portion and the locking portion, and the blade cover is assembled to the housing.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. In the drawing, 1 is a mower main body, after which an operation (not shown) is performed via a connecting rod 2 extending upward. connected to the section.

Reference numeral 3 denotes a housing of the mower main body 1, and near its lower end there is a groove-like groove formed in a substantially U-shaped plane and a U-shaped cross section across both side surfaces and rear side near the lower end. 1. A bottom plate 3a in which the engaging portion 4 is recessed and horizontally installed at the rear near the lower end of the bottom plate 3a.
A second engaging portion 5 is provided in the shape of a rectangular hole.

Reference numeral 6 denotes a motor housed in a downward direction in the housing 3, 7 a blade holder fitted onto the motor shaft 6a of the motor 6, and 8 a support for horizontal rotation via the blade holder 7 at the lower end of the housing 3. The blade is made of a synthetic resin material and is formed into a substantially band-like shape, and is inserted into a fitting groove 7a recessed in the lower surface of the blade holder 7 and is detachably attached to the blade holder 7. Grass can be cut by the turning action of the edges formed on both front and rear edges and front and rear edges.

9 covers the upper and rear parts of the rear part of the turning circle of the blade 8 to prevent the grass cut by the blade 8 from scattering to the rear and upper part, and to protect the worker from the turning operation of the blade 8. It is a blade cover attached to the rear lower end of the housing 3 in order to protect the housing 3. A hanging piece 9b curved in an arc along the vertical axis is arranged in a row so as to be open downward and forward, and has a U-shape in order to fit the vicinity of the lower end of the housing 3 into the center of the front part of the upper piece 9a. Established escape club 1
A locking edge 11 is provided on the periphery of the housing 3 to be slidable in the front-rear direction and to be engaged with the first engaging portion 4 of the housing 3 so as not to be movable in the vertical and horizontal directions.
is formed, and a flexible piece 13 is formed near the center of the upper piece 9a, which is elastically deformable in the vertical direction through a U-shaped slit 12 and whose wall thickness is slightly reduced. The front end of the flexible piece 13 is provided with a claw that is removably engaged with the second engaging portion 5 of the housing 3 to maintain the engaged state between the first engaging portion 4 and the locking edge 11. A lock portion 14 formed in the shape of
is provided in a protruding manner, and when the locking edge 11 is inserted into the first engaging part 4 from the rear and the blade cover 9 is pushed forward, the blade cover 9 is inserted into the first engaging part 4.
The blade cover 9 moves forward under the guidance of the housing 3, and the locking edge 11 is engaged with the first engaging portion 4 over its entire length, and the blade cover 9 becomes immovable and unrotatable in the vertical and horizontal directions with respect to the lower end of the housing 3. At the same time, the lock part 14 is automatically latched to the second engaging part 5 by the elastic deformation of the flexible piece 13, and the blade cover 9 is latched to the housing 3 in a manner that cannot be detached from the rear. be done.

Next, the operation and effects of the embodiment having the above configuration will be explained.

In this example, a blade cover 9 is provided to cover the upper and rear portions of the turning circle of the blade 8, which is supported so as to be horizontally rotatable near the lower end of the housing 3 of the mower body 1. 3. The first groove is recessed along the circumferential surface of the lower end.
A locking edge 11 is curved into a substantially U-shape for slidably engaging the engaging portion 4, and a first engaging portion 5 is engaged with the second engaging portion 5 provided through the housing 3.
A protruding lock portion 14 is formed to maintain the engaged state of the engaging portion 4 and the locking edge 11, respectively.

Therefore, the blade cover 9 can be assembled to the housing 3 with one touch by pushing the blade cover 9 from the rear to the front, which simplifies the assembly operation of the blade cover 9 and also allows the support mechanism of the blade cover 9 to be easily assembled. This has the effect of simplifying the process.

In addition, in this example, the blade cover 9 can be locked to the housing 3 by restricting free movement in the vertical direction, left-right direction, and front-rear direction, and restricting rotation, so that the supporting state of the blade cover 9 can be stabilized. I can do it.

(Effect of the invention) That is, in the present invention, the blade cover provided to cover the upper and rear portions of the rear part of the turning circle of the blade, which is supported so as to be horizontally rotatable with respect to the lower end of the housing of the main body of the mower, has the housing. a locking portion formed to slidably engage with a first engaging portion formed on the housing; and a locking portion formed on the housing to engage with a second engaging portion formed on the housing so that the first engaging portion and the engaging portion are engaged with each other. By providing a lock portion formed to maintain the engaged state with the stop portion, it is possible to simplify the assembly operation of the blade cover and also to simplify the support mechanism of the blade cover. .

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal cross-sectional view of the main parts, FIG. 2 is a plan view showing the state in which the blade cover is supported, and FIG. 3 is a perspective view of the blade cover. 1...Mower body, 3...Housing, 4...
First engaging portion, 5... Second engaging portion, 9... Blade cover, 11... Locking edge, 14... Lock portion.

Claims (1)

[Scope of utility model registration request] A blade cover provided to cover the upper and rear portions of the rear part of the turning circle of the blade, which is supported so as to be horizontally rotatable relative to the lower end of the housing of the mower body, has a first engaging portion formed on the housing. A locking portion formed for slidable engagement engages with a second engaging portion formed on the housing to maintain an engaged state between the first engaging portion and the locking portion. A blade cover support device for a lawn mower, characterized in that a blade cover support device is also provided with a lock portion formed for the purpose of securing the blade cover.