TWM543603U - Improved luggage caster structure - Google Patents

Description

Luggage caster structure improvement

This creation is a kind of improvement of the trunk caster structure, which provides a simple pivotal assembly of the caster assembly rotating seat and the base body, and achieves the practical purpose of turning the control to be silent and stable.

In general, the assembly design of the trunk casters is from the wheel set assembled in the first direction in a fixed direction, and in recent times, because of the convenience of any steering, the entire caster has a new movable wheel set that is more suitable for any steering control. Generally, the conventional caster structure assembly is roughly set as shown in the fifth figure, that is, the frame body (50) and the rotating seat (51) fixed according to the end angle of the box are mutually coupled with a ball disc (52) and The upper and lower positioning plates (53) are sandwiched by the outer side of the central shaft hole (54) of the rotating base (51), and the pivoting shaft (55) is inserted through the inner top edge of the mounting body (50). Then, it is assembled by riveting or locking. Through the rotation control of the ball disc (52), the caster (56) pivots to the steering operation, and the whole structural device can realize the caster through the flexible rotation control of the ball disc (52). With the convenient steering operation of (56), there are many structural assembly members, and there is no special restriction or positioning on the clamping assembly of the upper and lower positioning plates (53), so there are many gaps in the assembly of the overall assembly. , in the majority of the arrangement of the ball rolling steering slip, which is produced between the plate and the plate The sound of the life is very loud, especially when it is used for a period of time or damage, the noise generated is especially obvious. If there is a major impact on the surface of the ground, the plate will be deformed or the ball will fall off, which will directly affect the actual turn. The flexibility of control, in addition, the assembly of the whole component requires more technical dependence and assembly man-hours, and the relative production and assembly cost is higher. How to overcome the many unsuitable safety derived from the actual use of the caster in actual use. It is difficult to reduce the practicality of production and production. With the current structure of the assembly and use of casters, there is a need for further research and development, in order to achieve the goal of positive improvement in operational safety and practicality.

The creator is a professional manufacturer of a trunk caster fitting. Based on the practical inconvenience of inaccurate assembly of casters and the lack of practical use of the safe use, the creator has researched and improved the development of the caster caster structure, and the seat body and The rotating seat body is pivoted by a single shaft member, and the shaft taper insert is used to achieve the flexible control of the line contact, effectively overcoming the traditional caster seat accessories, inconvenient assembly, easy to use noise, etc. The practicality of safety is missing.

The main purpose of this creation is to connect the bracket body and the caster seat respectively through independent shaft members, and to match the insertion guide of the built-in tapered insert face and the line contact of the curved convex edge of the lower edge of the intermediate end plate. It can receive the design of transfer control and labor saving, combined with the oil filling and control lubrication of the oil guiding groove, which makes the steering operation more labor-saving and achieves the practical effect of no noise. The overall structure assembly is simplified, and the assembly cost and technical dependence are greatly eliminated, so that the casters are made. The assembly is safe, practical and economical.

(10) ‧‧‧ box body

(20, 50) ‧‧‧Seat body

(21) ‧‧‧ hole

(22) ‧‧‧ Positioning Plate

(30, 51) ‧ ‧ rotating seat

(31)‧‧‧ shaft parts

(32) ‧‧‧End plates

(33) ‧ ‧ convex rim

(34) ‧‧‧ Oil guide

(35) ‧‧‧ Ring groove

(36)‧‧‧Axis hole

(37) ‧‧‧ edge

(40, 56) ‧ ‧ casters

(52)‧‧‧Bead plate

(53)‧‧‧ Positioning board

(54)‧‧‧Axis hole

(55)‧‧‧ shaft

The first picture is a structural assembly decomposition reference diagram of the present caster base.

The second picture: the reference picture of the assembly appearance of the caster seat.

The third picture: the plane reference drawing of the assembly of the caster seat.

The fourth picture: the reference picture for the assembly of the caster seat.

Figure 5: Schematic diagram of the assembly of the current caster steering structure.

In order to facilitate your review committee to further understand the improved features of the caster seat structure and its practical purposes, please follow the following examples to illustrate in detail: The creation of a trunk caster structure is improved, mainly providing the trunk structure of the trunk assembly. Improved design, the structural design, please refer to the first to fourth figures, the assembly structure of the entire caster seat, including the frame body (20) that is locked and assembled at the corners of each box at the bottom of the trunk box body (10), and The assembly for assembling the rotating seat (30) of the caster (40) is improved by a cross-shaped shaft member (31), which is divided into the upper half by the centrally projecting end plate (32). a face, a tapered face of the lower half, and an outer ring of the bottom surface of the plate that is attached to the lower half of the face plate (32), and is provided with a protruding convex ring edge (33); the shaft The piece (31) is mainly used for pivoting the frame body (20) and the rotating seat (30), and provides a rotating seat (30) as a turning operation of the steering, wherein the straight face section is directly inserted into the frame body ( 20) The top edge of the seat hole (21) protrudes convexly; and the lower half of the shaft member (31) is formed into a cone-shaped face, according to the cone A concave oil guiding groove (34) is disposed on the surface of the rod, extending to the bottom end of the rod to form a V-shaped inner concave ring groove (35), and a central shaft hole (36) of the rotating seat (30) , set to the same tapered cone shape as the tapered face, and The bottom end of the hole forms an inwardly projecting end edge (37), and after the shaft member (31) is inserted into the right tapered shaft hole (36), the protruding end edge (37) can be easily applied after the force is penetrated. Directly engaged in the concave ring groove (35) of the end edge of the shaft member (31), forming a simple card fixing position assembly, and the upper half of the shaft member (31) is worn to the frame body ( 20) After the top of the seat hole (21), a rigid positioning plate (22) bushing is used for simple riveting and locking assembly positioning to form a pivoting caster seat structure that can be arbitrarily turned to achieve flexibility of the caster (40). The purpose of the safe operation of the transfer control operation.

The main practical improvement feature of the entire caster seat assembly structure is that between the base body (20) and the rotating seat (30) of the caster, a single cross-shaped shaft member (31) is pivotally connected to the upper and lower assembled components. Through the convex ring edge (33) of the bottom surface of the central end plate (32) of the shaft member (31), it can naturally make a point line contact when being inserted into the end face of the shaft hole (36) of the rotating seat (30). The steering friction coefficient is minimized when the steering operation is provided, and the same line contact with the general ball rotation contact is provided, and the steering is light and labor-saving, and the tapered surface of the shaft portion is formed in the tapered shape. The design has a complete insertion of the tapered shaft hole (36) opposite to the rotating seat (30), and the conical insertion allows the insertion of the box after the load to maintain a stable and safe insertion effect. According to the oil lubrication lubrication preset by the oil guiding groove (34) on the cone surface, when the rotating seat (30) is operated in the transposition operation, there is no friction between the entire mating surface except for the good orientation and positioning effect. The occurrence of wear and tear occurs, ensuring the pivotal steering operation, with a safe and stable practical effect, while passing through the end of the shaft member (31) The preset recessed ring groove (34) and the protruding end edge (37) of the bottom end of the shaft hole (36) are engaged with each other, so that the shaft member (31) can be assembled to receive a simple and convenient fixing position. Work Efficiency, relatively simple reliance on assembly technology, simplify assembly, greatly shorten assembly man-hours, effectively reduce the actual production assembly cost, and have practical functions of practical transfer, labor saving, light and safe, and the assembly structure design of multi-directional transfer caster seat In terms of use, its practical, innovative and improved use efficiency characteristics is indeed a brand new structural improvement design.

In summary, the structure of the caster caster of the present invention is improved, and the shaft member pivotally connected to the rotating base of the base body and the caster assembly is formed in a cross shape, and the arcuate point of the convex ring edge passing through the lower edge of the intermediate end plate The lubricity and controllable inserts of the contact and the lower half of the tapered face make the installation of the caster seat greatly simplified, the transfer control operation is flexible, and the utility model has the practical design of safe use and convenient assembly, and provides economical and practical effects of the design of the caster assembly structure. As for the innovative and practical characteristics of its structural design, it has already met the requirements for new patent applications, and applied for it according to law.

(20)‧‧‧Seat body

(21) ‧‧‧ hole

(22) ‧‧‧ Positioning Plate

(30)‧‧‧ rotating seat

(31)‧‧‧ shaft parts

(32) ‧‧‧End plates

(33) ‧ ‧ convex rim

(34) ‧‧‧ Oil guide

(35) ‧‧‧ Ring groove

(36)‧‧‧Axis hole

(40)‧‧‧ casters

Claims (3)

The utility model relates to an improved structure of a trunk caster, comprising a frame body with a lock group at each end corner of the bottom of the trunk body, and a pivot seat member for pivotally assembling the caster device with the shaft member, wherein the rotating seat and the seat body are The pivoting shaft member is arranged in a cross shape, and the central end of the rod body is provided with a left end surface which is divided into a straight rod surface of the upper half section, and a tapered rod surface of the lower half section, and the end plate is assembled to the lower surface of the lower surface The bottom outer ring is provided with a convex convex ring edge; wherein the straight rod surface section is protruded and protruded to the outside of the top end of the seat hole of the frame body, so as to position the board pad to be riveted and locked and assembled; The half-cone shaped rod extends close to the bottom end of the rod, and is provided with a concave ring groove, and the central shaft hole of the rotating seat is formed in the same tapered hole shape as the tapered rod surface, and is formed inwardly at the bottom end of the hole. The end edge of the shaft member is inserted and penetrated, and the protruding end edge is directly clamped to the concave ring groove at the bottom end of the shaft member to be assembled and assembled to form a caster seat structure with arbitrary steering pivoting. The structure of the trunk caster according to claim 1 is improved, wherein the tapered shape of the shaft member extends toward the inner end of the rod end, and the concave ring groove is formed in a V shape. The structure of the trunk caster according to the first aspect of the patent application is improved, wherein a concave oil guiding groove is disposed on the lower half of the tapered rod surface of the shaft member.