JPH0228673Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to wheels for small lawn mowers.

(Prior art) As a conventional small lawn mower wheel, for example, the third
There are some as shown in Figure 6. It consists of a boss part a made of hard plastic, a disc-shaped spoke part b, and a rim part c, and a tire d made of rubber or vinyl chloride is fitted onto the rim part c.

(Problems to be solved by the invention) However, when mowing the lawn with the wheels of such a conventional small lawn mower, if there is a side wall e made of concrete or the like as shown in Fig.
As shown in the figure, an uncut portion n appears on the edge of the side wall. In order to reduce the width of the grass, the grass was mowed by pushing it in the direction of the tire F as shown in Figure 11. With conventional tires, the sides of the tire rubbed and wore out, causing the tire to come off and make it impossible to mow the lawn. There was a problem.

(Means for Solving the Problems) The present invention aims to solve the above problems.The present invention is aimed at solving the above-mentioned problems. In the fitted small lawn mower wheel, multiple pin holes are provided in the circumferential groove formed on the outer side of the rubber tire, and a thick-tipped locking pin is provided that protrudes inward from the wear-resistant annular member. is inserted into and engaged with the pin hole, and at the same time, the inner side of the wear-resistant annular member is fitted into the circumferential groove.

(Example) Hereinafter, a detailed explanation will be given based on the illustrated example. 1 to 4 show an embodiment of the present invention. 1 is a boss portion, 2 is a rim portion, and 3 is a disc-shaped spoke portion connecting the boss portion and the rim portion, which are reinforced by radial ribs 4. All of these are integrally formed by injection molding hard plastic. 5 is a rubber tire fitted onto the rim portion 2. Several pin holes 9 are provided in a circumferential groove 8 formed on the outer side of the rubber tire 5, and a thicker locking pin 11 is provided protruding inward from a wear-resistant annular member 10 made of nylon or polyacetal resin. , the locking pin 11 is inserted into the pin hole 9 and engaged.
This wear-resistant annular member 10 protrudes outward more than at least any other part of the wheel, so that only this wear-resistant annular member 10 comes into sliding contact with the side wall e when mowing the lawn along the side wall e made of concrete or the like. It's getting old.

Next, the effect will be explained. When mowing the lawn along a side wall e of concrete, etc., in order to minimize uncut grass as close to the side wall as possible, even if the front wheel is moved while pressing against the side wall, only the wear-resistant member will come into sliding contact with the side wall. The side walls of the tire 5 do not come into sliding contact.

Note that instead of the wear-resistant annular member, pin-shaped wear-resistant members may be provided annularly protruding at relatively small pitches.

(Effects) According to the present invention, in a small lawn mower wheel in which a tire is fitted around the outer periphery of a hard synthetic resin body consisting of a boss part, a disc-shaped spoke part, and a rim part, the outer part of the rubber tire A plurality of pin holes are provided in the formed circumferential groove, and a thick-tipped locking pin protruding inwardly from the wear-resistant annular member is inserted and engaged in the pin hole,
At the same time, since the inner side of the wear-resistant annular member is fitted into the circumferential groove, when mowing the lawn along the side wall of concrete, etc., the front wheel or Even when the front and rear wheels are moved while being pressed against the side wall, only the wear-resistant member slides against the side wall, so the side surface of the tire can be protected. Also, by pushing the thick-tipped locking pin into the pin hole, the wear-resistant member can be moved. Since the inner part of the abrasive annular member can be fitted into the circumferential groove on the outside of the tire, it is easy to attach and detach, reducing assembly time, and even if it wears out, it can be easily replaced. This effect can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the entire small lawn mower to which an embodiment of the present invention is applied, Fig. 2 is a front sectional view of the upper half of the wheel in Fig. 1, and Figs. 3 and 4 are the same as Figs. Figure 2 is an explanatory diagram of attaching the wear-resistant member to the tire, Figure 5 is an overall perspective view of a conventional small lawn mower, Figure 6 is a partially cutaway front view of the wheel in Figure 5, and Figure 7 is a diagram of the wheel in Figure 5. Fig. 8 is a front view of Fig. 5, Fig. 9 is a front view of the state before mowing the lawn, and Fig. 10 is a front view of the state after mowing the lawn. , FIG. 11 is a front view of the wheel pressed against the edge. DESCRIPTION OF SYMBOLS 1... Boss part, 2... Rim part, 3... Disc-shaped spoke part, 4... Radial rib, 5... Rubber tire, 8... Circumferential groove, 9... Pin hole, 10... Wear resistance circular member, 11... locking pin;

Claims (1)

[Scope of utility model registration request] A small lawn mower wheel has a tire fitted around the outer periphery of a hard synthetic resin main body consisting of a boss, disc-shaped spokes, and rim. A pin hole is provided, and a thick-tipped locking pin protruding inwardly of the wear-resistant annular member is inserted into the pin hole and engaged, and at the same time, the inner side of the wear-resistant annular member is fitted into the circumferential groove. small lawn mower wheels.