CN2209062Y

CN2209062Y - Shaftless universal caster

Info

Publication number: CN2209062Y
Application number: CN 93245994
Authority: CN
Inventors: 郑林义; 周晨立
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-30
Filing date: 1993-11-30
Publication date: 1995-10-04
Anticipated expiration: 2003-11-30

Abstract

The utility model relates to a shaftless universal caster. Main and auxiliary circular orbits of different types can be arranged on the ball frame or in the ball frame casing, achieving that the motions between a ball wheel, roller balls and the ball frame or the ball frame casing are pure rolling. The roller balls can be sheathed and positioned by the ball wheel; the ball wheel can be ensured that which can free roll round a center under the condition of rated load; the closing port of one edge of the metal casing and the lower edge of a ball wheel sleeve can be processed into wave-shaped gaps; the problems that the chroming closing port of the caster is easy to fall off, the noise is high, and the dust removing is not automatic can be solved. A compression spring is arranged on the bolt of a clamp spring, for realizing automatic leveling. Because of the design of the cone-shaped high foot sleeve, the goal that the casters of high feet and luxury type can be used by a bed can be achieved.

Description

Shaftless universal caster

The utility model belongs to universal caster wheel and makes the field.

Background technology of the present utility model is: all patent No.s of the inventor are 89218306.3 and are called " not having the omnipotent cardan wheel of axle ".Reached leveling, braking, the multiple function of rolling though this is taken turns on structure design, its inner structure trade shape distributes unreasonable, the moving phenomenon that holds of high carrying.

Design goal of the present utility model is: avoid the weak point in the existing technology, design a kind of omnipotent universal caster wheel of no axle that can realize that high carrying does not hold when moving.

Design plan of the present utility model: making the relative motion between ball and housing, the ball wheel is pure rolling, and the ball wheel is steadily rolled around permanent center.Housing is made screw thread outward, the flat braking sleeve of auxiliary tone; An equipped compression spring on the jump ring latch.The common attaching screw lengthening of taking turns is provided with loudspeaker and takes off the high footmuff of type and be connected flat board.Its organization plan: the omnipotent universal caster wheel of a kind of no axle, it comprises attaching screw (band jump ring, latch, rivet, the screw connecting panel) (1), housing (2), ball (3), ball wheel (4), ball wheel sleeve (5), leveling braking sleeve (6), connecting panel (7) pearl frame (8), on housing (2), be provided with pearl frame (8) and with housing be one, pearl frame in the housing is by main motion track (9) and secondary cyclic track (10) the round or semi-circular track of formation or by main motion track (9) and the end to end formation pearl of secondary cyclic track (10) track, and is embedded with several balls on its track; Pearl frame (8) constitutes round or semi-circular track by main motion track (9) and secondary cyclic track (10) or by main motion track (9) and the end to end formation pearl of secondary cyclic track (10) track, and is embedded with several balls on its track.The track number of the pearl frame (8) in the housing (2) is odd number or the even number more than three; The track number of pearl frame (8) is three odd numbers of thinking or even number.Angle between the main motion track is 120 ° or 72 °.The degree of depth of secondary cyclic track (10) is greater than main motion track (9).Main motion track (9) is a unfair hole, and secondary cyclic track (10) is through hole or unfair hole.The following bead place of housing (2) is a wave-shaped gap; The lower edge of ball wheel sleeve (5) is designed to the wave breach.One compression spring (11) is housed on the latch in the attaching screw (1).To between attaching screw (1) end, the high footmuff of trumpet type (12) is housed on housing (2) top, connects the upper end that dull and stereotyped (7) are positioned at the high footmuff of trumpet type.

The utility model is compared with background technology, and the one, the design of pearl shelf structure has solved preferably and has had weak point in the prior art, has realized that the relative motion between the Foot weel without shaft movement parts is a pure rolling; The 2nd, housing closing in place and ball wheel sleeve lower edge are the design of wave breach, have reduced noise, have realized automatic dedusting; The 3rd, latch adds the design of compressing spring, has reached self-levelling purpose.

Description of drawings:

Fig. 1 is first kind of structural representation that does not have the omnipotent universal caster wheel of axle.

Fig. 2 is first kind of schematic top plan view of not having the omnipotent universal caster wheel of axle.

Fig. 3 is the structural representation of first kind of pearl frame.

Fig. 4 is the plan structure scheme drawing of first kind of pearl frame.

Fig. 5 is the structural representation of second kind of pearl frame.

Fig. 6 is the plan structure scheme drawing of second kind of pearl frame.

Fig. 7 is second kind of structural representation that does not have the omnipotent universal caster wheel of axle.

Fig. 8 is second kind of sectional structure scheme drawing that does not have the omnipotent universal caster wheel of axle.

Fig. 9 is the third structural representation that does not have the omnipotent universal caster wheel of axle.

Figure 10 is the 4th kind of structural representation of not having the omnipotent universal caster wheel of axle.

Figure 11 is the 4th a kind of plan structure scheme drawing that does not have the omnipotent universal caster wheel of axle.

1～11 pair of the utility model is done to narrate by reference to the accompanying drawings.

Be provided with pearl frame (8) at housing (2), and be integrated with housing that pearl shelf structure in the housing consists of round or semi-circular track by main motion track (9) and secondary cyclic track (10) or by main motion track (9) and the end to end formation pearl of secondary cyclic track (10) track, and be embedded with several balls (Fig. 3～6) at its track mouth. The track number of the pearl frame (8) in the housing is three above odd numbers or even number, and the degree of depth of secondary cyclic track (10) is greater than main motion track (9). Angle between the main motion track is 120 ° or 72 ° etc. The main motion track is blind hole, and cyclic track is through hole or blind hole.

Pearl frame (8) consists of round or semi-circular track by main motion track and secondary cyclic track (10) or by main motion track (9) and the end to end formation pearl of secondary cyclic track (10) track, and be embedded with several balls at its track, the track number of pearl frame is odd number or the even number more than three, and to the degree of depth of secondary cyclic track greater than the main motion track. The main motion track is blind hole, and secondary cyclic track is through hole or blind hole.

Embodiment 1(Fig. 1, Fig. 2): make housing, ball wheel, ball wheel sleeve, leveling braking sleeve mould by Fig. 1, Fig. 2, treat that it makes the injection moulding of iron chains spare, the alloy die cast surface polishing is electroplated, and just can obtain the parts that need.The ball outsourcing is loaded onto ball in the housing track, and the ball of packing into wheel and ball wheel sleeve get final product, and load onto leveling braking sleeve, high footmuff connecting panel, compression spring respectively according to different model and purposes, are the common castor of required different purposes; The leveling brake castor, high pin type castor, self-level(l)ing castor.

Embodiment 2(Fig. 7, Fig. 8): on the basis of embodiment 1, assembling one compression spring (11) on the jump ring latch behind attaching screw (1) lengthening, is provided with the high footmuff of trumpet type (12) and is connected dull and stereotyped (7), thereby constitute high pin, self-level(l)ing castor.

Embodiment 3(Fig. 9): at first according to making housing shown in Figure 9, pearl frame, ball wheel, connecting panel, high footmuff, ball wheel sleeve mould, treat to carry out after it is made punching press, hot pressing, injection moulding, machine up, cutting thread, garland, tapping, the antirust light processing in surface, can get required part; The outsourcing of gauge member such as ball, screw, housing and screw, rivet, latch add plain cushion riveted joint or add that the spring chair nut is fastenedly connected, rolling is contained in pearl frame and the ball wheel sleeve, will be withs the pearl pearl frame housing of packing into, put into the ball wheel, punching press closing in or load onto ball wheel sleeve.Load onto leveling braking sleeve, high footmuff, connecting panel, compression spring according to different model and purposes and be required common castor, leveling brake castor, high pin castor, self-level(l)ing swivel chair castor.

Embodiment 4(Figure 10, Figure 11): on the basis of embodiment 3, on its shell, load onto leveling braking sleeve (6) and get final product.

Claims

1, the omnipotent universal caster wheel of a kind of nothing axle, it comprises attaching screw: the band jump ring, latch, rivet, screw connecting panel (1), housing (2), ball (3), ball wheel (4), ball wheel sleeve (5), leveling braking sleeve (6), connecting panel (7) pearl frame (8), it is characterized in that: (1), on housing (2), be provided with pearl frame (8) and with housing be one, pearl frame in the housing is by main motion track (9) and secondary cyclic track (10) the round or semi-circular track of formation or by main motion track (9) and the end to end formation pearl of secondary cyclic track (10) track, and is embedded with several balls on its track; (2), pearl frame (8) constitutes round or semi-circular track by main motion track (9) and secondary cyclic track (10) or by main motion track (9) and the end to end formation pearl of secondary cyclic track (10) track, and be embedded with several balls on its track.

2, the omnipotent universal caster wheel of nothing axle according to claim 1, it is characterized in that: the track number of the pearl frame (8) in the housing (2) is odd number or the even number more than three; The track number of pearl frame (8) is odd number or the even number more than three.

3, the omnipotent universal caster wheel of nothing axle according to claim 1, it is characterized in that: the angle between the main motion track is 120 ° or 72 °.

4, the omnipotent universal caster wheel of nothing axle according to claim 1, it is characterized in that: the degree of depth of secondary cyclic track (10) is greater than main motion track (9).

5, the omnipotent universal caster wheel of nothing axle according to claim 1 and 2, it is characterized in that: leading moving track (9) is unfair hole, and secondary cyclic track (10) is through hole or unfair hole.

6, the omnipotent universal caster wheel of nothing axle according to claim 1, it is characterized in that: lower edge closing in place of housing (2) is a wave-shaped gap; The lower edge of ball wheel sleeve (5) is designed to the wave breach.

7, the omnipotent universal caster wheel of nothing axle according to claim 1 is characterized in that: a compression spring (11) is housed on the latch in the attaching screw (1).

8, the omnipotent universal caster wheel of nothing axle according to claim 1 is characterized in that: between attaching screw (1) end the high footmuff of trumpet type (12) is housed on housing (2) top, connects dull and stereotyped (7), be positioned at the upper end of the high footmuff of trumpet type.