Seat moving device for vehicle

Abstract

Provided is a vehicle seat moving device including: a winding device provided to an upper rail and having a winding portion on one side; a tensioning member wound around the winding portion, with both end portions of the tensioning member on opposite sides facing each other connected to both sides in the length direction of a lower rail; and an elastic member housed inside the winding portion to elastically support the winding device.

Description

Technical Field

[0001] This invention relates to a seat moving device for vehicles. Background Technology

[0002] Seat rails are typically installed inside a vehicle. A seat rail consists of a lower rail and an upper rail. The lower rail can be installed on the vehicle's floor panel. When force is applied to the seat, the upper rail, which is connected to the seat, slides along the lower rail in a position where it is inserted into the lower rail.

[0003] Recently, in order to cope with the autonomous driving of electric vehicles, multifunctional seats such as 360-degree rotating seats with long travel have been developed.

[0004] The operating methods of electric long-rail devices used in existing electric vehicle seats can be divided into rack and pinion systems and lead screw systems. Both rack and pinion and lead screw systems require numerous components and present challenges in assembling them into various complex structures.

[0005] To address the issues with rack and pinion and lead screw methods, a vehicle seat movement device using a pulley system was developed.

[0006] However, the existing cable pulley system for moving vehicle seats involves installing two cables on the pulleys and moving the seat by the operation of each cable. To maintain the tension of each cable, many components such as brake drums, clutch modules, input devices, and return springs are required. Therefore, it has the disadvantages of increasing costs and making it difficult to manage component quality during assembly.

[0007] Prior technical documents

[0008] Patent documents

[0009] (Patent document 1) Chinese Patent Publication No. 116353437 (Published on June 30, 2023) Summary of the Invention

[0010] To address the aforementioned problems, the present invention provides a vehicle seat moving device that allows the seat to be moved while maintaining the tension of a single tensioning member.

[0011] To achieve the above objectives, the present invention provides a vehicle seat moving device, comprising: a winding device disposed on an upper guide rail and having a winding portion on one side; a tensioning member wound around the winding portion and having its two ends facing opposite directions connected to both sides of a lower guide rail in the longitudinal direction; and an elastic member housed inside the winding portion to elastically support the winding device.

[0012] Furthermore, the tensioning member may include: a support portion located inside the winding portion; a one-sided winding portion extending to one side of the support portion and wound around the inner side of the outer diameter portion of the winding portion; a one-sided extension portion extending from the one-sided winding portion, with the end portion of the one-sided extension portion facing one side of the length direction of the upper guide rail; a other-sided winding portion extending to the other side of the support portion and wound around the outer side of the outer diameter portion of the winding portion; and a other-sided extension portion extending from the other-sided winding portion, with the end portion of the other-sided extension portion facing the other side of the length direction of the upper guide rail.

[0013] Furthermore, the winding portion may include: a first through hole formed on the inner side of one side of the outer diameter portion of the winding portion; a second through hole formed on the outer side of the same side of the outer diameter portion of the winding portion, such that the second through hole connects with the first through hole while forming a step with the first through hole; a third through hole formed on the inner side of the other side of the outer diameter portion of the winding portion; a fourth through hole formed on the outer side of the other side of the outer diameter portion of the winding portion, such that the fourth through hole connects with the third through hole while forming a step with the third through hole; and a fifth through hole formed in the portion of the outer diameter portion of the winding portion located between the first through hole and the third through hole.

[0014] Furthermore, the one-sided winding portion can be wound through the first through hole and wound inside the outer diameter portion of the winding portion, while the other-sided winding portion can be wound through the fourth through hole and wound outside the outer diameter portion of the winding portion.

[0015] Furthermore, the elastic member can be assembled such that, with one side assembly portion of the elastic member passing through the fifth through hole and wound around the outer diameter portion of the winding portion, a hook portion provided at the end of the one side assembly portion passes through the fourth through hole and is inserted into the interior of the winding portion and locked in place.

[0016] Furthermore, with the support portion and the elastic member assembled inside the winding portion, a cover can be attached to the open side of the winding portion.

[0017] Furthermore, the cover may include: a protrusion extending in one direction toward the winding portion; and an insertion hole formed in the protrusion.

[0018] Furthermore, the elastic member can be assembled such that a locking portion located at the other end is inserted into the embedding hole and locked in place.

[0019] Furthermore, the elastic member can be supported by a contact portion located inside the winding portion while inserted inside the winding portion.

[0020] The contact portion may surround at least a portion of the outer side of the elastic member.

[0021] Furthermore, the winding device and the cover can be assembled inside the housing, which can be mounted on the upper guide rail.

[0022] Furthermore, the first mounting portion located on the other side of the winding device and the second mounting portion located on the other side of the cover can be mounted in the support groove of the support frame located on the upper guide rail inside the housing.

[0023] Furthermore, the end of the one-sided extension can be connected to one side of the lower guide rail through a guide hole on one side of a bracket on the upper side of the upper guide rail, and the end of the other-sided extension can be connected to the other side of the lower guide rail through a guide hole on the other side of a bracket on the other side of the upper guide rail.

[0024] Furthermore, the elastic member can be a helical spring.

[0025] Furthermore, the tensioning member can be composed of a strip-shaped draw wire that can be wound around the outer diameter portion of the winding portion.

[0026] Invention Effects

[0027] This invention allows for seat movement while maintaining tension on a single tensioning member, thereby saving costs compared to existing cable pulley drive systems.

[0028] In addition, the present invention can minimize the number of parts and simplify assembly, thus facilitating component quality management. Attached Figure Description

[0029] Figure 1 This is a diagram showing the state in which a vehicle seat moving device according to a preferred embodiment of the present invention is installed on a seat guide rail.

[0030] Figure 2 This is a diagram showing the state in which a tensioning member and an elastic member are assembled on a winding device according to a preferred embodiment of the present invention.

[0031] Figure 3 This is a diagram illustrating a winding apparatus according to a preferred embodiment of the present invention.

[0032] Figure 4 This is a diagram showing the state in which a tensioning member is assembled on a winding device according to a preferred embodiment of the present invention.

[0033] Figure 5 This is a diagram showing the state in which an elastic member is assembled on a winding device according to a preferred embodiment of the present invention.

[0034] Figure 6This is a diagram showing the state of the locking portion of the elastic member in the insertion hole of the protrusion formed on one side of the cover according to a preferred embodiment of the present invention.

[0035] Figure 7 This is an enlarged view of a vehicle seat moving device according to a preferred embodiment of the present invention.

[0036] Figure 8 This is a front view of a vehicle seat moving device according to a preferred embodiment of the present invention.

[0037] In the picture: 10: Winding device; 11: Winding part; 113a: First through hole; 113b: Second through hole; 113c: Third through hole; 113d: Fourth through hole; 113e: Fifth through hole; 114: Contact part; 12: First mounting part; 20: Tensioning member; 21: Support part; 22: One-side winding part; 221: One-side extension part; 221a: End part; 23: Another-side winding part; 231: Another-side extension part; 231a: End part; 30: Elastic member; 31: One-side assembly part; 311: Hook part; 32: Locking part; 40: Cover; 41: Protrusion; 411 42: Embedded hole; 50: Second mounting part; 60: Housing; 60: Support frame; 61: Support groove; 71: One-side bracket; 711: One-side guide hole; 72: Other-side bracket; 721: Other-side guide hole; 80: Connecting frame; 90: Locking device; 91: Locking protrusion; 92: Lever; 93: Pull cable; 100: Seat rail; 101: Upper rail; 102: Lower rail; 103: Locking hole Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. First, when labeling the constituent elements of each figure with reference numerals, care should be taken to assign the same numerals to the same constituent elements even if they are shown in different figures. Furthermore, in describing the present invention, detailed descriptions of related well-known structures or functions will be omitted if they would obscure the essence of the invention. Although a preferred embodiment of the present invention is described below, the technical concept of the present invention is not limited thereto, and various modifications can be made by those skilled in the art.

[0039] Figure 1 This is a diagram showing the state in which a vehicle seat moving device according to a preferred embodiment of the present invention is mounted on a seat guide rail. Figure 2 This diagram illustrates a winding apparatus according to a preferred embodiment of the present invention, in which a tensioning member and an elastic member are assembled. Figure 3 This is a diagram illustrating a winding apparatus according to a preferred embodiment of the present invention.

[0040] like Figures 1 to 3As shown, the present invention may include: a winding device 10 disposed on an upper guide rail 101; a tensioning member 20 wound around the winding device 10; and an elastic member 30 for elastically supporting the winding device 10.

[0041] The winding device 10 may include: a winding portion 11; a plurality of through holes formed on the outer diameter portion of the winding portion 11; and a contact portion 114 disposed inside the winding portion 11.

[0042] The winding portion 11 can be formed protruding from one side of the winding device 10 toward the cover 40. The winding portion 22 on one side and the winding portion 23 on the other side of the tensioning member 20 can be wound around the inner and outer sides of the outer diameter portion of the winding portion 11.

[0043] The winding portion 11 may include a first through hole 113a, a second through hole 113b, a third through hole 113c, a fourth through hole 113d, and a fifth through hole 113e.

[0044] The first through hole 113a can penetrate one side of the outer diameter portion of the winding portion 11. The first through hole 113a can penetrate the inner side of one side of the outer diameter portion.

[0045] The second through hole 113b can be connected to the first through hole 113a. The second through hole 113b can form a step with the first through hole 113a. The second through hole 113b can penetrate the outer side of the outer diameter portion of the winding portion 11.

[0046] The third through hole 113c can be formed on the other side of the outer diameter portion of the winding portion 11. The third through hole 113c can be formed on the inner side of the other side of the outer diameter portion of the winding portion 11.

[0047] The fourth through hole 113d can be connected to the third through hole 113c. The fourth through hole 113d can be configured to form a step with the third through hole 113c. The fourth through hole 113d can penetrate the outer side of the outer diameter portion of the winding portion 11.

[0048] The fifth through hole 113e can penetrate the portion of the outer diameter of the winding portion 11 located between the first through hole 113a and the third through hole 113c.

[0049] Figure 4 This diagram shows the state in which a tensioning member is assembled on a winding device according to a preferred embodiment of the present invention.

[0050] like Figure 4 As shown, the tensioning member 20 can be composed of a band-shaped wire that can be wound around the outer diameter portion of the winding portion 11. The tensioning member 20 is composed of a band-shaped wire so that it can be securely wound around the outer diameter portion of the winding portion 11.

[0051] The tensioning member 20 may include a support portion 21, a one-sided winding portion 22, a one-sided extension portion 221, a other-sided winding portion 23, and a other-sided extension portion 231.

[0052] The support portion 21 may be located inside the winding portion 11. A one-sided winding portion 22 may be formed extending from one side of the support portion 21.

[0053] One side of the winding portion 22 can be exposed through the first through hole 113a and wound around the inner side of the outer diameter portion of the winding portion 11.

[0054] The other winding portion 23 can be exposed through the fourth through hole 113d and wound around the outer side of the outer diameter portion of the winding portion 11.

[0055] One-sided extension 221 can be formed by extending from one-sided winding 22. The end portion 221a of one-sided extension 221 can be connected to one side of the lower guide rail 102.

[0056] The other side extension 231 can be formed by extending from the other side winding portion 23. The end portion 231a of the other side extension 231 can be connected to the other side of the lower guide rail 102.

[0057] Figure 5 This is a diagram showing the state in which an elastic member is assembled on a winding device according to a preferred embodiment of the present invention.

[0058] like Figure 5 As shown, the elastic member 30 can be a spiral spring.

[0059] The elastic member 30 may include a side assembly portion 31 and a hook portion 311. The side assembly portion 31 may pass through the fifth through hole 113e and be wound around the outer diameter portion of the winding portion 11. A hook portion 311 may be provided at the end of the side assembly portion 31. The hook portion 311 may be assembled to be inserted into the interior of the winding portion 11 through the fourth through hole 113d to lock into the interior of the winding portion 11.

[0060] Figure 6 This is a diagram showing the state of the locking portion of the elastic member in the insertion hole of the protrusion formed on one side of the cover according to a preferred embodiment of the present invention.

[0061] like Figure 2 , Figure 5 , Figure 6 As shown, with the support portion 21 and the elastic member 30 assembled inside the winding portion 11, the cover 40 can be attached to the open side of the winding portion 11. The cover 40 can be attached to the winding portion by a connecting member such as a bolt.

[0062] The cover 40 may include a protrusion 41 and an insertion hole 411. The protrusion 41 may extend in the direction of the winding portion 11 on one side of the cover 40. The insertion hole 411 may be formed in the protrusion 41. A locking portion 32 provided at the other end of the elastic member 30 may be inserted into the insertion hole 411 and locked in place.

[0063] The elastic member 30 can be supported by the contact portion 114 of the winding portion 11 while inserted inside the winding portion 11. The contact portion 114 can surround at least a portion of the outer side of the elastic member 30.

[0064] As described above, the elastic member 30 is assembled such that the hook portion 311 is inserted into and locked inside the winding portion 11 through the fourth through hole 113d, the locking portion 32 is embedded and locked in the insertion hole 411 of the cover 40, and is supported by the contact portion 114. Therefore, the elastic member 30 can be firmly assembled.

[0065] Figure 7 This is an enlarged view of a vehicle seat moving device according to a preferred embodiment of the present invention. Figure 8 This is a front view of a vehicle seat moving device according to a preferred embodiment of the present invention.

[0066] like Figure 1 , Figure 7 and Figure 8 As shown, the winding device 10 and the cover 40 can be installed inside the housing 50. The housing 50 can be mounted on the upper guide rail 101 by means of connecting members such as bolts.

[0067] The seat rail 100 may include an upper rail 101 and a lower rail 102. The upper rail 101 can move along the lower rail 102 in a state of being inserted into the lower rail 102.

[0068] The lower guide rail 102 can be mounted on the floor panel inside the vehicle. The upper guide rail 101 can be connected to the seat (not shown). When force is applied to the seat (not shown) in the unlocked state of the locking device 90, the upper guide rail 101 connected to the seat (not shown) can move along the lower guide rail 102. Thus, the seat (not shown) can be moved to the desired position.

[0069] When the locking device 90 is operated with the seat (not shown) moved to the desired position, the locking protrusion 91 can be inserted into the locking holes 103 of the upper guide rail 101 and the lower guide rail 102, thereby achieving a locked state. The locking device 90 can be implemented by various known constructions applied to the seat guide rail 100.

[0070] The first mounting portion 12, located on the other side of the winding device 10, and the second mounting portion 42, located on the other side of the cover 40, can be mounted in the support groove 61 of the support frame 60 of the upper guide rail 101 located inside the housing 50. The support groove 61 can be configured as a semi-circular shape that conforms to the first mounting portion 12 and the second mounting portion 42.

[0071] The end portion 221a of the one-side extension 221 protrudes outward from the housing 50 and can be connected to one side of the lower guide rail 102 through the one-side guide hole 711 of the one-side bracket 71 provided on the upper side of the upper guide rail 101. The end portion 221a of the one-side extension 221 can be connected to one side of the lower guide rail 102 through the connecting frame 80.

[0072] The end portion 231a of the other extension 231 protrudes outward from the housing 50 and can be connected to the other side of the lower guide rail 102 through the other side guide hole 721 of the other side bracket 72 provided on the other side of the upper guide rail 101. The end portion 231a of the other extension 231 can be connected to the other side of the lower guide rail 102 through the connecting frame 80.

[0073] The tensioning member 20 can maintain a firm tension state through the elastic force of the elastic member 30, the supporting force of one side bracket 71, and the supporting force of the other side bracket 72.

[0074] Next, the operation of the present invention will be described.

[0075] like Figure 1 , 2 As shown, when the locking protrusion 91 of the locking device 90 is inserted into the locking hole 103 of the upper guide rail 101 and the lower guide rail 102 in the locked state, if the force acting on the pull wire 93 disappears, the lever 92, which is elastically supported by the spring (not shown), can rotate in the locking release direction by the elastic force of the spring (not shown).

[0076] In conjunction with this, the locking protrusion 91 can be released from the locking hole 103 of the upper guide rail 101 and the lower guide rail 102 as it disengages from the locking hole 103.

[0077] When force is applied to the seat (illustration omitted) while it is in the unlocked state, the seat (illustration omitted) can be moved to the desired position.

[0078] When a force is applied to the seat (not shown), the upper guide rail 101 connected to the seat (not shown) can move along the lower guide rail 102 to one side of the lower guide rail 102.

[0079] As the upper guide rail 101 moves to one side of the lower guide rail 102, the winding device 10 can also move to one side together with the lower guide rail 102.

[0080] When the winding device 10 moves together with the upper guide rail 101 towards one side of the lower guide rail 102, the elastic force acting on the elastic member 30 of the winding portion 11 can maintain the tension of one side winding portion 22 and one side extension 221, as well as the other side winding portion 23 and the other side extension 231.

[0081] For example, when the winding device 10 moves together with the upper guide rail 101 toward one side of the lower guide rail 102, the one-side extension 221 can move toward the one-side winding portion 22 while maintaining tension and be wound around the one-side winding portion 22. Conversely, the other-side winding portion 23 can unfold toward the other-side extension 231 while maintaining tension.

[0082] By tensioning the tensioning member 20, the upper guide rail 101 can slide stably along the lower guide rail 102 without wobbling. Thus, stable movement of the seat (not shown) connected to the upper guide rail 101 can be achieved.

[0083] With the upper guide rail 101 in the desired position, if the pull line 93 is pulled, the lever 92 can rotate in the locking direction.

[0084] As lever 92 rotates in the locking direction, locking protrusion 91 can move in tandem with it, achieving a locking state where it is inserted into the locking holes 103 of upper guide rail 101 and lower guide rail 102. This ensures that upper guide rail 101, which is connected to the seat (not shown), remains immovable.

[0085] The above description is merely an exemplary depiction of the technical concept of the present invention. Those skilled in the art can make various modifications, alterations, and substitutions without departing from the essential characteristics of the present invention. Therefore, the embodiments and accompanying drawings disclosed in this invention are for illustration and not limitation of the technical concept of the present invention. The scope of the technical concept of the present invention is not limited to the above-described embodiments and accompanying drawings. The scope of protection of this invention should be interpreted by the appended claims, and all technical concepts within the same scope are considered to fall within the scope of the claims of this invention.

Claims

1. A vehicle seat moving device, wherein, include: A winding device is mounted on the upper guide rail and has a winding section on one side; The tensioning member is wound around the winding portion, and the two ends of the tensioning member facing opposite directions are connected to both sides of the lower guide rail along its length. as well as An elastic member is housed inside the winding portion to elastically support the winding device.

2. The vehicle seat moving device according to claim 1, wherein, The tensioning member includes: The support portion is located inside the winding portion; A one-sided winding portion extends toward one side of the support portion and is wound around the inner side of the outer diameter portion of the winding portion; One-sided extension extends from the one-sided winding portion, and the end portion of the one-sided extension faces one side of the upper guide rail along its length direction; The other winding portion extends to the other side of the support portion and is wound around the outer diameter of the winding portion; and The other side extension extends from the other side winding portion, and the end portion of the other side extension faces the other side of the length direction of the upper guide rail.

3. The vehicle seat moving device according to claim 2, wherein, The winding portion includes: The first through hole is formed on the inner side of one side of the outer diameter portion of the winding portion; The second through hole is formed on the outer side of the outer diameter portion of the winding portion, such that the second through hole is connected to the first through hole while forming a step with the first through hole; The third through hole is formed on the inner side of the outer diameter portion of the winding portion; A fourth through hole is formed on the outer side of the other side of the outer diameter portion of the winding portion, such that the fourth through hole connects with the third through hole while forming a step with the third through hole; and The fifth through hole is formed in the outer diameter portion of the winding portion, located between the first through hole and the third through hole.

4. The vehicle seat moving device according to claim 3, wherein, One side of the winding portion passes through the first through hole and is wound inside the outer diameter portion of the winding portion, while the other side of the winding portion passes through the fourth through hole and is wound outside the outer diameter portion of the winding portion.

5. The vehicle seat moving device according to claim 3, wherein, The elastic member is assembled such that it is wound around the outer diameter portion of the winding portion through the fifth through hole in one side assembly portion of the elastic member, and the hook portion provided at the end of the one side assembly portion is inserted into the interior of the winding portion through the fourth through hole and locked in place.

6. The vehicle seat moving device according to claim 2, wherein, With the support and the elastic member assembled inside the winding portion, a cover is attached to the open side of the winding portion.

7. The vehicle seat moving device according to claim 6, wherein, The cover includes: A protrusion is formed extending in one direction toward the winding portion; and An embedded hole is formed in the protrusion.

8. The vehicle seat moving device according to claim 7, wherein, The elastic member is assembled such that a locking portion located at the other end is inserted into the embedding hole and locked in place.

9. The vehicle seat moving device according to claim 2, wherein, When the elastic member is inserted into the winding portion, it is supported by a contact portion provided inside the winding portion.

10. The vehicle seat moving device according to claim 9, wherein, The contact portion surrounds at least a portion of the outer side of the elastic member.

11. The vehicle seat moving device according to claim 6, wherein, The winding device and the cover are assembled inside the housing, which is mounted on the upper guide rail.

12. The vehicle seat moving device according to claim 11, wherein, The first mounting portion located on the other side of the winding device and the second mounting portion located on the other side of the cover are mounted in the support groove of the support frame of the upper guide rail located inside the housing.

13. The vehicle seat moving device according to claim 11, wherein, The end of one side extension is connected to one side of the lower guide rail through a guide hole on one side of a bracket on the upper side of the upper guide rail, and the end of the other side extension is connected to the other side of the lower guide rail through a guide hole on the other side of a bracket on the other side of the upper guide rail.

14. The vehicle seat moving device according to claim 1, wherein, The elastic component is a helical spring.

15. The vehicle seat moving device according to claim 1, wherein, The tensioning member is composed of a strip-shaped draw wire that can be wound around the outer diameter portion of the winding portion.

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