CN102151402B

CN102151402B - Wheel core of roller skate pulley

Info

Publication number: CN102151402B
Application number: CN 201110053659
Authority: CN
Inventors: 周志壮
Original assignee: ZHUANGDA GAOFEN TECHNOLOGY (HANGZHOU) CO LTD
Current assignee: ZHUANGDA GAOFEN TECHNOLOGY (HANGZHOU) CO LTD
Priority date: 2011-03-07
Filing date: 2011-03-07
Publication date: 2013-02-06
Anticipated expiration: 2031-03-07
Also published as: CN102151402A

Abstract

The invention discloses a wheel core of a roller skate pulley. The wheel core comprises a wheel ring, a spoke and a wheel axle hub, wherein the outer surface of the wheel ring is uniformly provided with a plurality of convex ribs in the circumferential direction; a through hole is arranged between the convex ribs and the outer surface of the wheel ring; and an opening is formed between every two adjacent convex ribs. According to the invention, a solid structure of the outer convex edge of the traditional wheel core is changed into a plurality of elastic convex ribs, thus not only can the combining area of the convex ribs with elastic PU (polyurethane) be increased, spalling can be overcome, but also the PU material cannot be divided into an inner layer and an outer layer; when impacted by the external impact force, the convex ribs play a role of ribs, makes corresponding deformation, absorbs the impact force, thus the feet sense of the roller skates becomes better; additionally, at the premises of unchanging the diameter of the pulley, the diameter of the wheel core can be increased appropriately, the elastic PU material can be reduced, therefore, the weight and cost of the products can be reduced, and the function and efficacy are improved.

Description

A kind of wheel core of roller skate pulley

Technical field

The present invention relates to skate wheel, particularly a kind of wheel core of roller skate pulley.

Background technology

In specialty and the amateurish selected pulley field of motion roller skate, because continually developing and technological progress in decades, this pulley in the whole international community is under the standard of same test performance, such as: wearability, with surface detention performance, elasticity, service life, mechanical precision etc., the wheel of same diameter, its weight are identical substantially, all are stabilized on the aspect of a certain technical pattern.Therefore most of international designing and developing also all continued to use traditional structure, thinks that all this has been has been a level that reaches the peak of perfection in the optional scope of present raw material.

The pulley of tradition roller skate, as shown in Figure 1, to be made by plastics core wheel 1 and transparent elasticity PU2 pouring, core wheel 1 comprises wheel rim 3, wheel propeller boss 4 and is distributed in radially wheel rim 3 and the spoke 5 of taking turns between the propeller boss 4, core wheel 1 plays the effect of skeleton, and elasticity PU2 then is that the periphery that is coated on wheel rim 3 is selected the tyre surface of making wheel, allows it play the wearability that contacts with ground, elasticity, retardancy etc. function; When the two water be combined after, just have one in conjunction with rate, the requirement in anti-strip and life-span.

In order to satisfy these requirements, traditional design all is provided with a circle chimb 6 integrated with it in wheel rim 3 peripheries, and being provided with a plurality of elliptical apertures 7 at chimb 6 again increases bonded area between elasticity PU2 and the chimb 6, contends with and peels off; Because the existence of these elliptical apertures 7, make core wheel produce again an outer ring 8 (being a circle of the outer shroud of core wheel), produce again a column 9 between the Kong Yukong, the existence of outer ring 8 and column 9 makes and forms a solid body, also so that PU material to be separated into elliptical aperture inside and outside two-layer, namely play the skin of the just elasticity PU material of the effects such as elasticity, wearability, that is this layer of material between the outer ring 8 of elasticity PU material outmost turns and chimb 6, we are referred to as functional layer 10; By finding out among Fig. 1, although elasticity PU has radially reached the position of wheel rim 3 outer surfaces, that plays the effects such as elasticity, wearability only has functional layer 10, so it is very thin that this one deck becomes, when being subjected to external shock power, its anti-layer is thin, the power diffusivity is poor, and the feel of roller skate also can be bad.

And if for performances such as the elasticity that further increases wheel, wearabilities, need to strengthen the thickness H of outer one functional layer 10, under the constant prerequisite of diameter of pulley, this makes use of momentum and must will reduce the diameter of core wheel, and the materials of increase elasticity PU, this can increase cost of manufacture undoubtedly, can not satisfy domestic and international society to energy-saving and emission-reduction, the requirement of low-carbon (LC) revolution.

Summary of the invention

The present invention has overcome the shortcoming that above-mentioned prior art middle pulley functional layer is thin, the power diffusivity is poor, cost of manufacture is high, the core component core wheel of pulley has been done innovation to be improved, behind pouring elasticity PU, make the PU material no longer divide inside and outside two-layer, the functional layer thickening, but elasticity PU materials reduce, thereby putting forward the high performance manufacturing cost that reduced simultaneously, have saved raw material.

Technical scheme of the present invention is achieved in that

A kind of wheel core of roller skate pulley, comprise wheel rim, spoke and wheel propeller boss, on the outer surface of wheel rim, along circumferentially evenly being provided with a plurality of flexible fins that have, be provided with a through hole between described fin and the wheel rim outer surface, and form opening between the adjacent fin in twos.

As preferably, described fin comprises top rib and symmetrical two side ribs, and the root of two side ribs links to each other with wheel rim, and the top of two side ribs links to each other with the top rib.

Be to increase elasticity and the anti-impact force of fin, as preferably, in each fin, wherein a side rib by root to the top all towards the direction inclination near another side rib.Thus, fin forms the shape of an arch, effectively resists external shock.

As preferably, the opening between the adjacent fin is V-shaped in twos.

In order to increase the bonded area of elasticity PU material and fin, strengthen the performance that elasticity PU contends with and peels off, as preferably, along on the core wheel axial direction, the width of top rib is greater than the width of side rib.

Adopted the invention has the beneficial effects as follows of technique scheme:

The present invention changes the solid body structure of the outer chimb of traditional core wheel into a plurality ofly has flexible fin, so that not only can increase equally the bonded area with elasticity PU, contends with and peels off; The PU material is no longer divided inside and outside two-layer, fin plays the effect of rib when being subject to external shock power, the follow-up distortion, and impact-absorbing power has been got well much the roller skate feel; Moreover, under the constant prerequisite of diameter of pulley, can also suitably strengthen the diameter of core wheel, reduce the materials of elasticity PU, reduced weight and the cost of product, and on function, effect, promoted to some extent on the contrary.

Description of drawings

Fig. 1 is the structural representation of traditional structure pulley;

Fig. 2 is the structural representation (overlooking) of the other direction of Fig. 1;

Fig. 3 is the structural representation of core wheel of the present invention;

Fig. 4 is the structural representation (overlooking) of the other direction of Fig. 3;

Fig. 5 is the structural representation of pulley of the present invention;

Fig. 6 is the structural representation (overlooking) of the other direction of Fig. 5.

The specific embodiment

The specific embodiment of the present invention is as follows:

Embodiment: a kind of wheel core of roller skate pulley, as shown in Figure 3, Figure 4, comprise wheel rim 3, spoke 5 and wheel propeller boss 4, the edge circumferentially evenly is provided with a plurality of flexible fins 21 that have on the outer surface of wheel rim 3, be provided with a through hole 22 between described fin 21 and wheel rim 3 outer surfaces, and form opening 23 between the adjacent fin 21 in twos.

Described fin 21 comprises that the root of symmetrical two

side ribs

24 and 25, two side ribs 24 of top rib between two side ribs links to each other with wheel rim 3, and the top of two side ribs 24 links to each other with top rib 25; Top rib 25, two side ribs 24 are all one-body molded with wheel rim 3, and above-mentioned four surround through hole 22.In each fin 21, wherein a side rib by root to the top all towards tilting near the direction of another side rib, form the shape of an arch, and the opening 23 between the adjacent fin is V-shaped in twos; Along on the core wheel axial direction, the width of top rib 25 is greater than the width of side rib 24.

Shown in Fig. 5,6, behind pouring elasticity PU26, form a pulley, top rib 25, side rib 24 all play the effect of a rib, have certain elasticity, when external shock power is arranged, the distortion of can following up, impact-absorbing power, the comfortable foot feeling degree has been got well a lot; And because the elastic reaction that plays of fin, so that the PU material no longer divides is inside and outside two-layer, namely the thickness H of functional layer 10 has become by the thickness of elasticity PU26 outmost turns to this whole layer material of wheel rim 3 outer surfaces; Thus, can suitably strengthen the diameter of core wheel, and reduce the materials of elasticity PU26.

Through above-mentioned improvement, in the situation that raw material remain unchanged, the wheel of equivalent diameter, weight saving 12%.This means originally 700 tons of senior plastics foundry raw materials of Year's consumption, can save nearly 84 tons raw material every year now.

Claims

1. wheel core of roller skate pulley, comprise wheel rim, spoke and wheel propeller boss, it is characterized in that: the edge circumferentially evenly is provided with a plurality of flexible fins that have on the outer surface of wheel rim, be provided with a through hole between described fin and the wheel rim outer surface, and form opening between the adjacent fin in twos, described fin comprises top rib and symmetrical two side ribs, and the root of two side ribs links to each other with wheel rim, and the top of two side ribs links to each other with the top rib; In each fin, wherein a side rib is all tilted towards the direction near another side rib to the top by root.

2. a kind of wheel core of roller skate pulley according to claim 1, it is characterized in that: the opening between the adjacent fin is V-shaped in twos.

3. a kind of wheel core of roller skate pulley according to claim 1 is characterized in that: along on the core wheel axial direction, the width of top rib is greater than the width of side rib.