Brake Cable Mechanism for Suitcase
The brake cable mechanism for suitcases simplifies the structure by eliminating the inner tension plate, reducing parts and costs, and ensuring secure fixation, thereby enhancing the reliability and efficiency of the brake system.
Patent Information
- Application Number
- JP2025001037U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-09-25
- Filing Date
- 2025-04-02
- Publication Date
- 2025-06-09
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing suitcase brake systems have a complex structure that increases the number of parts and costs, particularly due to the need for an inner tension plate to limit the annular disk.
A simplified brake cable mechanism for suitcases that includes an upper fixing seat, a brake cable with a main core of steel wire and a cable sleeve, and an end piece with a columnar body that screws into a hollow rotating shaft, eliminating the need for an inner tension plate.
The solution reduces the number of parts and costs, provides a simple and compact structure, and ensures secure fixation of the cable sleeve, enhancing the reliability and efficiency of the brake system.
Smart Images
Figure 0003251564000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to accessories for cases and bags, and more specifically to a brake cable mechanism for a suitcase.
Background Art
[0002] Recently, with the increasing convenience of long-distance travel, suitcases have also become widely used. Therefore, improved suitcase designs, such as the design of brake systems for cases and bags, have been developed and widely used.
[0003] The handbrake-type brake system is a common brake structure in existing suitcases. The operating part provided on the upper part of the case or bag is connected to the brake part of the caster via a brake cable. The brake cable is composed of a main core of steel wire and a cable sleeve sleeved outside the main core of the steel wire. One end of the main core of the steel wire is connected to the operating part, and the other end passes through the hollow rotating shaft of the roller of the case or bag and is connected to the brake part. The cable sleeve realizes the protection of the main core of the steel wire and the guidance of the path. One end of the cable sleeve of the brake cable in a commercially available case or bag handbrake system is fixed to the base of the operating part, and the other end is directly placed at the position of the mouth of the hollow rotating shaft. There is an annular limiting disk at the end of the cable sleeve with a diameter larger than that of the mouth of the hollow rotating shaft. The annular limiting disk is supported at the mouth of the hollow rotating shaft, and an inner tension plate is assembled on the upper part of the roller base of the roller to press the annular limiting disk to achieve the limit. The specially designed inner tension plate increases the number of spare parts of the case or bag and increases the cost.
Summary of the Invention
[0004] An object of the present invention is to provide a brake cable mechanism for a suitcase with a simple structure and low cost in order to overcome the defects of the prior art.
[0005] To achieve the above object, the present invention provides the following technical solutions.
[0006] The brake cable mechanism for a suitcase includes an upper fixing seat, a brake cable, and a hollow rotating shaft. The brake cable includes a main core of steel wire and a cable sleeve sleeved outside the main core of the steel wire. Both ends of the main core of the steel wire penetrate through the cable sleeve. One end of the cable sleeve is fixed to the upper fixing seat, and an end piece is provided at the other end of the cable sleeve. The brake cable mechanism for the suitcase, wherein the end piece includes a columnar main body formed with an insertion connection hole, one end of the cable sleeve is inserted and fixed into the insertion connection hole, the columnar main body extends with a hollow stud portion, and a through hole and an external thread for the main core of the steel wire to penetrate are provided in the hollow stud portion. An internal thread hole portion is formed at the upper part of the hollow rotating shaft, and the hollow stud portion is screwed into the internal thread hole portion. The brake cable mechanism for a suitcase is characterized in that.
[0007] Preferably, a tangent plane for holding the columnar main body when screwing in the end piece is formed on the outer cylindrical surface of the columnar main body.
[0008] Preferably, the columnar main body has a polygonal outer contour, and a plurality of planes distributed along the circumferential direction on the polygonal outer contour constitute the tangent plane.
[0009] Preferably, the upper fixing seat is provided with a fixing hole groove, the fixing hole groove includes a front hole cavity and a rear groove cavity that are sequentially connected, one end of the front hole cavity is a front limit interface, and a through hole for the main core of the steel wire to penetrate is provided on the front limit interface. A radial avoidance slot penetrating in the radial direction is formed on the radial side of the through hole. The radial avoidance slot extends along the length direction of the through hole, penetrates the front hole cavity, and the radial avoidance slot provides for the main core of the steel wire to enter and exit in the radial direction of the through hole and the front hole cavity. There is an opening on the radial side of the rear groove cavity, the rear groove cavity is connected to a tail notch, and there is a rear limit interface at one end of the rear groove cavity connected to the tail notch. The tail notch has a sleeve insertion port connected to the opening of the rear groove cavity. A cable sleeve fixing member is provided at the front end of the cable sleeve. The main core of the steel wire penetrates the cable sleeve fixing member. One end of the cable sleeve fixing member is inserted into the front hole cavity along the rear groove cavity. The cable sleeve fixing member is inserted into the front hole cavity and arranged in the rear groove cavity. The radial side of the cable sleeve fixing member is restricted in the front hole cavity by the wall of the front hole cavity. One end in the length direction of the cable sleeve fixing member fits stop-ably with the front limit interface, and the other end in the length direction of the cable sleeve fixing member fits stop-ably with the rear limit interface. The cable sleeve is inserted along the sleeve insertion port and positioned in the tail notch.
[0010] Preferably, a hollow hole is provided on the bottom side of the front hole cavity corresponding to the through hole. By adopting the above technical solution, the end piece that cooperates with the hollow rotating shaft is connected to the hollow rotating shaft by a screw. The columnar body of the end piece provides for the insertion and installation of the cable sleeve, realizing the connection between the end piece and the cable sleeve. At the same time, the columnar body of the end piece provides a holding part for screwing operation, which can firmly fix the end of the cable sleeve, has a simple structure, does not require the design of an inner lining plate, reduces the number of parts, and reduces costs. The design of the tangent plane facilitates the holding of the columnar body, and the polygonal outer contour of the columnar body enables operation at multiple angles.
Brief Description of the Drawings
[0011] The present invention will be further described below with reference to the accompanying drawings.
[0012]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Embodiments for Carrying out the Invention
[0013] Refer to FIGS. 1 to 6. The brake cable mechanism for the suitcase includes an upper fixing seat 1, a brake cable 2, and a hollow rotating shaft 3. The brake cable 2 includes a main core 21 of steel wire and a cable sleeve 22 sleeved outside the main core 21 of the steel wire. Both ends of the main core 21 of the steel wire penetrate through the cable sleeve 22. One end of the cable sleeve 22 is fixed to the upper fixing seat 1 (what is shown in the figure is the part with the rack cable sleeve structure where the upper fixing seat is fixed), and an end piece 23 is provided at the other end of the cable sleeve 22. In order to realize a simpler and more reliable combination of the cable sleeve and the hollow rotating shaft, the following optimized design is adopted: The end piece 23 includes a columnar body 231 in which an insertion connection hole 2311 is formed. One end of the cable sleeve 22 is inserted into and fixed in the insertion connection hole 2311. The columnar body 231 has a hollow stud portion 232 extending therefrom. The hollow stud portion 232 is provided with a through hole and an external thread for the main core 21 of the steel wire to penetrate through. An internal thread hole portion 31 is formed at the upper part of the hollow rotating shaft 3. The hollow stud portion 232 is screwed into the internal thread hole portion 31. One end of the cable sleeve 22 is fixedly inserted into the columnar body 231 of the end piece. During assembly, the columnar body 231 is fixedly gripped by hand or operated with a tool, and the hollow stud portion is screwed into the internal thread hole portion of the hollow rotating shaft, thereby realizing the fixation of one end of the cable sleeve to the hollow rotating shaft. Compared with the conventional structural design, the number of parts is reduced and the cost is reduced. The columnar body of the end piece provides the insertion and installation of the cable sleeve to realize the connection between the end piece and the cable sleeve. At the same time, the columnar body of the end piece provides a holding portion for the screwing operation, and the structure is simple and compact.
[0014] To more easily grip the columnar body, a tangent plane 2312 for holding the columnar body 231 when screwing in the end piece 23 is formed on the outer cylindrical surface of the columnar body 231. As shown in FIG. 7, the tangent plane 2312 may be designed as two symmetric planes. To achieve a simpler and more compact design, as shown in FIGS. 1, 5, and 6, the columnar body 231 has a polygonal outer contour, and a plurality of planes distributed along the circumferential direction on the polygonal outer contour constitute the tangent plane 2312. Therefore, the columnar body may adopt a simple circular surface design or may be designed considering friction patterns, tightening operations, etc.
[0015] In this embodiment, a fixing hole groove 11 is provided in the upper fixing seat 1, and the fixing hole groove 11 includes a front hole cavity 111 and a rear groove cavity 112 that are sequentially connected. One end of the front hole cavity 111 is a front limit interface 111a, and a through hole 12 for the main core of the steel wire to penetrate is provided in the front limit interface 111a. A radial avoidance slot 121 that penetrates in the radial direction is formed on the radial side of the through hole 12. The radial avoidance slot 121 extends along the length direction of the through hole and penetrates the front hole cavity 111. The radial avoidance slot 121 provides for the main core of the steel wire to enter and exit in the radial direction of the through hole 12 and the front hole cavity. There is an opening on the radial side of the rear groove cavity 112, and the rear groove cavity 112 is connected to a tail notch 13. There is a rear limit interface 112a at one end of the rear groove cavity 112 that is connected to the tail notch 13. The tail notch 13 has a sleeve insertion port connected to the opening of the rear groove cavity 112. A cable sleeve fixing member 24 is provided at the front end of the cable sleeve 22, and the main core 21 of the steel wire penetrates the cable sleeve fixing member 24. One end 24a of the cable sleeve fixing member 24 is inserted into the front hole cavity 111 along the rear groove cavity 112. The cable sleeve fixing member 24 is inserted into the front hole cavity 111 and arranged in the rear groove cavity 112. The radial side of the cable sleeve fixing member 24 is restricted in the front hole cavity 111 by the wall of the front hole cavity 111. One end in the length direction of the cable sleeve fixing member 24 fits stop-ably to the front limit interface 111a, and the other end in the length direction of the cable sleeve fixing member fits stop-ably to the rear limit interface. The cable sleeve 22 is inserted along the sleeve insertion port and positioned within the tail notch 13. Through the cooperation of the front hole cavity 111 and the rear groove cavity 112, the lateral restriction of the cable sleeve fixing member 24 is realized, and through the front restriction surface 111a and the rear restriction surface 112a, the lengthwise restriction of the cable sleeve fixing member 24 is realized. The structure is simple, and the cable sleeve fixing member can be securely fixed.When attaching, tilt the cable sleeve fixing member 24, insert the front end of the cable sleeve fixing member 24 into the rear groove cavity 112 along the opening of the rear groove cavity 112, then push in the front end of the cable sleeve fixing member 24 and insert it into the front hole cavity 111. Next, insert the other end of the cable sleeve fixing member into the rear groove cavity as well to correctly position the cable sleeve fixing member. A hollow hole 1111 is provided on the bottom side of the front hole cavity 111 corresponding to the through hole 12, which facilitates the injection molding process of the front hole cavity 111.
Claims
1. a brake cable mechanism for a suitcase comprising an upper fixed seat, a brake cable, and a hollow rotating shaft, the brake cable comprising a steel wire main core and a cable sleeve sleeved around the steel wire main core, both ends of the steel wire main core passing through the cable sleeve, one end of the cable sleeve being fixed to the upper fixed seat, and the other end of the cable sleeve being provided with an end piece, the end piece comprising a columnar body having an insertion connection hole formed therein, one end of the cable sleeve being inserted into and fixed to the insertion connection hole, a hollow stud portion extending from the columnar body, the hollow stud portion having a through hole and an external thread for the steel wire main core to pass through, an internal thread hole portion formed at an upper portion of the hollow rotating shaft, the hollow stud portion being screwed into the internal thread hole portion.
2. 2. A suitcase brake cable mechanism as claimed in claim 1, characterized in that the outer cylindrical surface of the cylindrical body is formed with a tangential surface for holding the cylindrical body when screwing in the end piece.
3. 3. The suitcase brake cable mechanism according to claim 2, wherein the columnar body has a polygonal outer contour, and a plurality of planes distributed circumferentially around the polygonal outer contour constitute the tangential surfaces.
4. The upper fixing seat is provided with a fixing hole groove, the fixing hole groove including a front hole cavity and a rear hole cavity connected in sequence, one end of the front hole cavity is a front limiting surface, the front limiting surface is provided with a through hole for the main core of the steel wire to pass through, a radial avoidance slot is formed on the radial side of the through hole, the radial avoidance slot extends along the length of the through hole and passes through the front hole cavity, the radial avoidance slot allows the main core of the steel wire to enter and exit the through hole and the front hole cavity in the radial direction, the radial side of the rear groove cavity has an opening, the rear groove cavity is connected with the tail notch, one end of the rear groove cavity connected with the tail notch has a rear limiting surface, the tail notch has a sleeve insertion port connected with the opening of the rear groove cavity, 2. The brake cable mechanism for a suitcase according to claim 1, characterized in that a cable sleeve fixing member is provided at a front end of the cable sleeve, a main core of the steel wire passes through the cable sleeve fixing member, one end of the cable sleeve fixing member is inserted into the front hole cavity along the rear groove cavity, the cable sleeve fixing member is inserted into the front hole cavity and disposed in the rear groove cavity, the radial side of the cable sleeve fixing member is restricted to the front hole cavity by the wall of the front hole cavity, one end of the cable sleeve fixing member in the length direction fits stoppably against the front limit surface, and the other end of the cable sleeve fixing member in the length direction fits stoppably against the rear limit surface, and the cable sleeve is inserted along the sleeve insertion opening and positioned in the tail notch.
5. 5. The suitcase brake cable mechanism according to claim 4, wherein a hollow hole is provided at the bottom side of the front hole cavity corresponding to the through hole.