JPH032401Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to casters suitable for transporting cans and the like used in spinning factories.

(Prior Art) Conventionally, wheels with rubber on the surface have been used at the bottom of furniture, cans, and the like. This is to prevent damage to the floor etc. by utilizing the elasticity of rubber, and to prevent noise from coming into contact with the floor.

In addition, casters that can be attached to the bottom of transport vehicles, etc., have been introduced in spinning factories (Utility Model Publication No. 43-5946).

Furthermore, wheels for wagons that use an elastic material such as rubber for the tire part and a semi-rigid material with good sliding for the tread part on the outer periphery of the tire part have been introduced as suitable for use in inns (Jikko Sho 55 -11399 Publication). A wheel that does not trap hair has also been introduced (Utility Model Application Publication No. 53-82064).

Furthermore, fit the bushings onto the wheel from both ends,
A synthetic resin wheel with a dust cover in which the boss part rotates around this bushing with the boss hole as the contact surface has also been introduced (Utility Model No. 56-8506).
Publication No.).

(Problem that the invention aims to solve) However, when wheels with rubber attached to the bottom of furniture, cans, etc. are used for long periods of time, the rubber becomes loose and loses its grip, slipping away from the inner ring, or sliding. This often resulted in poor mobility and because the rubber contained carbon, it often stained the floor.

In addition, the caster used in the above-mentioned spinning factory is one in which a wrapping body is mounted on a shaft rod and lint, etc. is wound around the winding concave surface. There was a gap between the two, and it was easy for fluff to get into this gap, impairing smooth rotation.

Furthermore, a wagon wheel that uses an elastic material such as rubber for the tire part uses an elastic material such as rubber for the tire part, and uses a semi-hard material with good sliding for the tread part on the outer periphery of the tire part. However, since it was made for inns, it was impossible to expect smooth rotation in a spinning mill due to its structure.

In addition, wheels that do not trap hair are equipped with a sealed bearing in the center of the wheel.
There was a gap between the wheels and the bearings, and the structure was such that fluff from the spinning mill could get into it, so it could not be used in spinning mills.

In addition, synthetic resin wheels with dust covers,
Due to the structure, a gap exists between the contact surface between the boss and the bush. Therefore, even if this wheel were to be used in a spinning mill, fluff would enter through the gaps and smooth rotation would not be maintained for a long time.

The present invention, unlike such conventional casters, provides a caster that can be used in a spinning factory without the risk of contamination with fluff and can provide smooth rotation for a long time.

(Means for solving the problem) The present invention takes the following measures to solve the problem. That is, the present invention consists of a wheel, a wheel metal fitting, and a side plate, and the wheel includes an outer ring part and an inner ring part, and the outer ring part is
The outer ring part is made of a synthetic resin material, has a top part in the circumferential direction at the center of the circumferential surface of the outer ring part, and sloped surfaces on both sides of the top part, and the inner ring part includes a ring 9, a bearing 17, and the ring 9. A rubber seal 8 surrounds the bearing 17, and the wheel is connected to the shaft via bushes 10, 10' having small diameters 13, 13' between a pair of side plates provided on the wheel fitting. The caster is characterized in that the bushes 10, 10' are held non-rotating while the bushes 10, 10' are supported, and the small diameters 13, 13' are tightly fitted into the bush inlet holes 6.

The present invention will be explained below with reference to the drawings.
1 is a partially cutaway front view of the wheel 1, and FIG. 2 is a side view of the wheel 1. In the figure, the wheel 1 is composed of an outer ring portion 2 and an inner ring portion 3. As shown in FIG. The material of the outer ring portion 2 is made of synthetic resin such as nylon 6, nylon 66, polyester, etc., but preferably Teflon (registered trademark) powder, molybdenum disulfide, graphite powder, etc. is used to increase sliding properties. It is preferable to select an appropriate reinforcing agent and a dimensional stabilizer to mix into the synthetic resin material. A top portion 4 must be provided in the smooth direction of the central portion of the circumferential surface of the outer ring portion 2. This is because it is effective in improving sliding properties by making a line contact with the floor surface, etc. Slanted surfaces 5 are provided on both sides of the top portion 4 to facilitate line contact. 6 is the entrance hole. 7 is outer ring part 2
It is a key provided along the circumferential direction on the inner surface of the inner ring portion 3, and is fitted into a key groove provided along the circumferential direction on the circumferential surface of the inner ring portion 3 to connect the outer ring portion 2 and the inner ring portion 3. It plays the role of binding. 8 is a rubber seal, and 9 is a ring. The rubber seal 8 plays the role of preventing the mixing of fluff, protecting the internal bearing 17, and maintaining smooth rotation of the wheel.When used in a can used in a spinning factory, a rubber seal You need to choose a bearing. FIG. 3 is an explanatory view for attaching the wheel 1 to the side plates 11, 11' of the wheel fitting 12 according to the present invention. 13, 13' are inserted and tightly fitted, and the bolt 14 and nut 15 are screwed together via the side plates 11, 11'. Therefore, the bushes 10, 10' are held in place by the bolts 14 and nuts 15 so that they do not rotate. FIG. 4 is a perspective view of the caster of the present invention, and 12 is a wheel fitting.

(Function) The casters shown in FIG.
around bolt 14 are bushes 10, 10',
Rotates via ring 9. Butsuyu 10,1
The small diameters 13, 13' of the wheel 1 are tightly fitted into the bushing holes 6, and the ring 9 of the wheel 1 is inserted into the bushing 1.
0 and 10', the rubber seal 8 is in contact with the ring 9, and this rubber seal 8 prevents fluff from getting into the rotating bearing inside which is covered with the rubber seal 8. It is something. Further, since the small diameters 13, 13' of the bushes 10, 10' are tightly fitted into the bushing inlet 6, the contamination of fluff is prevented, and since the bushes 10, 10' do not rotate, no fluff is mixed in. Binding is almost completely prevented.

In addition, casters were manufactured using wheels with an outer diameter of 45 mmφ made of hard nylon, and four casters were attached to the bottom of the can, and they were used mainly as moving cans for four weeks between the carding machine and the drawing machine. There was no sticking or contamination, and the rotation was smooth. For comparison, when we conducted a similar running test using a wheel with a rubber outer ring similar to the structure seen in the conventional Publication of Utility Model Publication No. 43-5946, we found that fluff got into the bearing and prevented smooth rotation. I couldn't get it anymore. Additionally, the surface of the rubber was slightly deformed.

(Effects of the invention) As described above, the present invention forms the outer ring part with a synthetic resin material, provides a unique shape on the circumferential surface of the outer ring part, and has a rubber seal 8 on the inner ring part to prevent air from being mixed in. The bearing is covered, the inside of the rubber seal 8 is formed with a ring 9, and the wheel consisting of the outer ring part and the inner ring part is used as a wheel metal fitting with bushes 10 and 1 having small diameters 13 and 13' between the side plates.
By using a caster with a structure in which the small diameters 13 and 13' are closely fitted into the bushing inlet 6, air lint does not enter the rubber seal, and the non-rotating bush 10 and 10' are not covered with fluff, so smooth rotation can be achieved for a long period of time, and it has the remarkable effect of being highly durable.

[Brief explanation of the drawing]

1 and 2 are a partially cutaway front view and a side view of a caster wheel according to the present invention, respectively, and FIG. 3 is an explanatory diagram for attaching the caster wheel according to the present invention to a wheel metal fitting, FIG. 4 is a perspective view of the caster of the present invention. 1...Wheel, 2...Outer ring part, 3...Inner ring part, 4
...Top part, 5...Slope surface.

Claims (1)

[Scope of utility model registration request] The wheel is composed of a wheel, a wheel fitting, and a side plate, and the wheel includes an outer ring part and an inner ring part, and the outer ring part is made of a synthetic resin material, and the outer ring part is made of a synthetic resin material, and the outer ring part is made of a synthetic resin material. The inner ring part includes a ring 9, a bearing 17, and a rubber seal 8 for covering the bearing 17 around the ring 9. is a bush 1 having a small diameter 13, 13' between a pair of side plates provided on the wheel metal fitting.
The bushes 10, 10' are held non-rotatably through small diameters 13, 10'.
13' is closely fitted into the inlet hole 6.