TWM520475U - Improved structure of brake caster - Google Patents

Description

Structural improvement of the casters

This creation is a caster structure, especially a caster structure with good stopping effect.

According to the progress of the times, the general public consumption habits have also changed. From the grocery store with limited business hours to the modern one, you can see a convenience store that is open all day, and then to the price. Shopping malls are convenient for large stores, and depending on the type of store itself, the tools needed to store items are different when shopping. Small stores provide customers with baskets, while large stores use carts that can hold many items.

Because the large store has a large hinterland, the shopping space and furnishings are relatively comfortable and spacious compared to the small store, so it can provide a spacious shopping aisle, provide carts for promotion, and large-scale stores sell a wide variety of goods, the more items and quantity The more people come, the more often the goods are placed on the floor, causing the customer to push the cart to take the escalator up and down the stairs. The cart will slide back and forth because of the tilt angle of the escalator. If it is accidental, it may hit. In case of injury to the customer, in view of this technology, the caster caster is provided with a stop structure.

The caster stop structure of the technology is provided with a stop block on the outer side of the caster. When the caster is trapped in the groove of the escalator, the outer stop block rubs against the surface of the plurality of grooves to generate the anti-slip force; If the outer wheel diameter is larger than the inner wheel diameter, when the outer wheel is trapped in the slot of the escalator, the inner wheel will The surface of the groove is rubbed to produce a slipping force.

However, although the above two techniques have provided basic slip-resistance, it is often the case that the trolley slides on the escalator, which not only causes inconvenience to the user, but is also likely to cause injury accidents. Concerned about this problem for many years, it has been continuously researched and improved to create a caster structure with good stopping effect.

The purpose of this creation is to provide a structural improvement of the caster that solves the above disadvantages.

The present invention provides a structural improvement of the caster wheel, comprising a wheel seat, the wheel seat is provided with a pivoting portion, the pivoting portion is provided with a perforation, the wheel seat is provided with a locking portion, a stop block, the stop block The body has a body, a neck portion and an abutting portion, and the bottom surface of the body is provided with a plurality of anti-slip bumps, the neck portion is disposed on the engaging portion, the abutting portion abuts against the top surface of the engaging portion, and a wheel body The wheel body is composed of a first outer wheel and a second outer wheel, and the first outer wheel and the second outer wheel are provided with an abutting portion. The inner diameter of the inner wheel is larger than the outer diameter of the abutting portion of the first outer wheel. The inner wheel is provided with a plurality of anti-slip grooves, and the wheel body is disposed at the pivoting portion through a screw and a nut; when the escalator groove lifts the inner wheel, the anti-slip bump is engaged with the anti-slip Groove, to achieve the effect of braking.

According to the above structure, the inner diameter of the inner wheel is larger than the outer diameter of the outer wheel abutting portion, the inner wheel does not engage with the outer wheel, and the inner diameter of the inner wheel contacts the abutting portion, and the inner wheel is centered on the abutting portion. Restricting the movable state, when the present invention is created on the escalator, the outer wheel will be trapped in the slot of the escalator, and the inner wheel will interfere with the surface of the escalator groove, and the inner wheel will be surfaced by the groove Pushing up, so that the anti-slip groove of the inner wheel is engaged with the anti-slip bump of the stop block to achieve the effect of stopping slippage. In summary, the present invention provides a convenient and safe caster structure for the user. , has a good stopping effect; the following exemplifies a specific embodiment, and is illustrated in detail by the drawings, The review committee can have a better understanding of the technical characteristics of this creation.

(1) ‧‧·wheel seat

(11) ‧‧‧ pivotal department

(12)‧‧‧Perforation

(121) ‧‧‧ Groove

(13) ‧‧‧Clock Department

(2) ‧‧‧煞 block

(21) ‧‧‧ Ontology

(211) ‧‧‧Slip-on bumps

(22)‧‧‧ neck

(23) ‧ ‧ Affiliation

(3) ‧‧‧ Wheels

(31)‧‧‧First outer wheel

(311) ‧‧‧Docking Department

(312)‧‧‧ recess

(32) ‧‧‧Second outer wheel

(321) ‧‧‧Docking Department

(322)‧‧‧ recess

(33)‧‧‧ Inner wheel

(331) ‧‧ ‧ slip groove

(332)‧‧‧Steel

(4)‧‧‧ screws

(41) ‧‧‧ convex

(5)‧‧‧ Nuts

(6) ‧‧‧Escalator trench

(7) ‧ ‧ Turn to Palin

(8) ‧ ‧ Palin

(9)‧‧‧Dust cover

The first figure is a stereoscopic reference diagram of the wheel base.

The second figure is a perspective view of another perspective of the wheel base.

The third figure is a schematic diagram (1) of the embodiment of the present creation.

The fourth figure is a schematic diagram (2) of the embodiment of the present creation.

The fifth figure is a stereoscopic reference diagram of the stop block.

The sixth figure is a perspective view of another perspective of the stop block.

The seventh figure is a perspective view of the first outer wheel.

The eighth figure is a perspective view of the other angle of the first outer wheel.

The ninth figure is a perspective view of the second outer wheel.

The tenth figure is a perspective view of another perspective of the second outer wheel.

The eleventh figure is a three-dimensional reference schematic diagram of the inner wheel.

The twelfth figure is a schematic diagram (3) of the embodiment of the present creation.

The thirteenth figure is a schematic diagram (4) of the embodiment of the present creation.

The fourteenth figure is a schematic diagram (5) of the embodiment of the present creation.

The fifteenth figure is a schematic diagram (6) of the embodiment of the present creation.

Figure 16 is a schematic diagram (7) of another embodiment of the present invention.

The seventeenth figure is a schematic diagram (8) of another embodiment of the present creation.

Referring to the first to fifteenth drawings, the present invention provides a structural improvement of the caster, comprising a wheel base (1), the wheel base (1) is provided with a pivoting portion (11), the pivoting The portion (11) is provided with a perforation (12), the wheel base (1) is provided with a engaging portion (13), a stop block (2), and the stop block (2) is provided with a body (21) and a neck portion (22) and the abutting portion (23), the bottom surface of the body (21) is provided with a plurality of anti-slip bumps (211), and the neck portion (22) is disposed on the engaging portion (13), the abutting portion ( 23) abutting against the top surface of the engaging portion (13) and a wheel body (3) The wheel body (3) is composed of a first outer wheel (31) and a second outer wheel (32) sandwiching an inner wheel (33), and the first outer wheel (31) and the second outer wheel (32) are provided. There is a docking portion (311) (321) having an inner diameter larger than an outer diameter of the abutting portion (311) of the first outer wheel (31), and the inner wheel (33) is provided with a plurality of anti-slip grooves ( 331), the wheel body (3) is assembled to the pivoting portion (11) through a screw (4) and a nut (5).

Referring to Figures 16 and 17 of the drawings, through the above structure, the present invention is set up in a cart. When the cart is used on a flat ground, the inner diameter of the inner wheel (33) is larger than the first outer wheel ( 31) the outer diameter of the abutting portion (311), the inner wheel (33) is not in contact with the stopping block (2), and has no stopping effect, so that the wheel body (3) rolls smoothly, and When the user pushes the cart to the escalator of the cart to go up and down the building, the outer circumference of the first outer wheel (31) and the second outer wheel (32) will be engaged with the escalator groove (6). The inner wheel (33) is jacked up by contact with the top surface of the escalator groove (6), and the plurality of anti-slip grooves (331) of the inner wheel (33) are tightly engaged with the stop block ( 2) the plurality of anti-slip bumps (211) reach a stop function, so that the wheel body (3) cannot rotate; the first outer wheel (31) and the second outer wheel (32) are engaged with the escalator through the first outer wheel (31) and the second outer wheel (32) In the groove (6), a first step stopping effect is formed, and then the inner wheel (33) is jacked up by the escalator groove (6), thereby making the inner wheel (33) a plurality of the sliding groove (331) closely engaging the plurality of anti-slip bumps (211) of the stop block (2) to form a second step Only the effect, through this two-step function only evil, so that the cart can stand firm on the escalator, not easily move back and forth to achieve real security and stop the evil effect.

Moreover, the present invention is connected to the cart, and the wheel base (1) is further provided with a steering Palin (7), which can respond to the user's needs and rotate the cart to a desired direction; the inner wheel (33) Further, a steel ring (332) is further disposed inside to strengthen the overall rigidity of the inner wheel (33) to achieve an optimal stopping effect; the first outer wheel (31) and the second outer wheel (32) are further provided with a recess (312). (322), the two recesses (312) (322) are provided with a Palin (8) and a dust cover (9), so that the pivotal portion (11) can be rotated more flexibly in contact with the wheel body (3). Smoothly; the perforation (12) is further provided with a groove (121), the screw (4) is further provided with a convex portion (41), so that the screw (4) and the nut (5) are more closely locked to the pivot On the joint (11).

In addition, due to the lack of ability of Xi’s technology, it is not easy to detect immediately. The degree of wear of the casters, when the caster of the technology touches the comb plate at the end of the escalator, it will slide backwards due to insufficient slip force, or the cart may be overturned due to the uneven ability of the front and rear casters of the cart. The user is troubled and cannot push the cart away from the escalator smoothly. When the present invention is in contact with the comb board, the cart can not be in contact with the comb board because of the better stopping ability. The reaction force slides backwards, and the user can smoothly push the cart away from the escalator. Moreover, since the cart is different according to the use environment, it must be implemented on different roads. If the road area is water, the inner wheel (33) The plurality of anti-slip grooves (331) have excellent water repellency, so that the cart does not slip during implementation.

On the whole, the technology of Xi is to set the stop block on the side of the caster, or to use the inner wheel to contact the escalator groove to generate the friction and slip resistance, which is achieved by using the planar anti-slip structure. The creation is achieved by the plurality of anti-slip grooves (331) of the inner wheel (33) and the plurality of anti-slip bumps (211) of the stop block (2) which are closely engaged with the three-dimensional anti-slip structure. The above-mentioned embodiments are only for explaining the principle and function of the present invention, and are not intended to limit the present creation. Therefore, those skilled in the art can modify and change the above embodiments without departing from the spirit of the creation; It has been industrially utilized, novel and progressive, and meets the requirements of new patents.

(1) ‧‧·wheel seat

(2) ‧‧‧煞 block

(3) ‧‧‧ Wheels

(4)‧‧‧ screws

(7) ‧ ‧ Turn to Palin

Claims (5)

The invention relates to a structural improvement of a caster wheel, comprising: a wheel seat, the wheel base is provided with a pivoting portion, the pivoting portion is provided with a perforation, the wheel seat is provided with a locking portion; and a stopping block is provided, the stopping block is provided a body, a neck portion and an abutting portion, the bottom surface of the body is provided with a plurality of anti-slip bumps, the neck portion is disposed on the engaging portion, the abutting portion abuts against the top surface of the engaging portion, and a wheel body The wheel body is composed of a first outer wheel and a second outer wheel, and the first outer wheel and the second outer wheel are provided with an abutting portion, and the inner wheel has an inner diameter larger than an outer diameter of the abutting portion of the first outer wheel, the inner wheel a plurality of anti-slip grooves are disposed on the pivoting portion through the screw and the nut; when the escalator groove lifts the inner wheel, the anti-slip bump is engaged with the anti-slip groove To achieve the effect of braking. The structural improvement of the caster wheel as described in claim 1 of the patent application, wherein the wheel base is further provided with a steering Palin. The structural improvement of the caster wheel according to the first aspect of the patent application, wherein the inner wheel is further provided with a steel ring. The structural improvement of the caster wheel according to claim 3, wherein the first outer wheel and the second outer wheel are further provided with a recess, and the two recesses are provided with a Palin and a dust cover. The structural improvement of the caster wheel as described in claim 4, wherein the through hole is further provided with a groove, and the screw is further provided with a convex portion.