Lacing device and anti-reverse mechanism thereof

Abstract

The present disclosure provides a novel lacing device and an anti-reverse mechanism thereof. This lacing device uses a “swing arm elastic component-stop piece-gap” mechanism as the anti-reverse mechanism, wherein an elastic component of the swing arm elastic component has good deformation ability, and a swing arm head and an anti-reverse head of the stop piece may form self-locking force, such that the lacing device with the novel anti-reverse mechanism not only has excellent hand feeling when the lace is tensioned, but also can effectively avoid the unintentional loosening of the lace, thereby having excellent use reliability and durability.

What is claimed is: 
     
         1 . A lacing device, comprising a rotatable cover, a spool and a housing, the rotatable cover being rotatably set on the housing, the spool being supported by the housing and rotatable relative to the housing, wherein
 the rotatable cover comprises at least one gap arranged along a circumference;   the spool is configured to roll up a lace when rotating in a tensioning direction and release the lace when rotating in a loosening direction;   at least one swing arm elastic component is provided on the housing, the swing arm elastic component comprises an elastic component and a swing arm which are connected to each other, the swing arm at least comprises a swing arm head, the swing arm head comprises a tooth portion and a neck joint portion, the tooth portion of the swing arm head is configured to be engaged into the gap when the swing arm is in an original position, and the swing arm head is configured to be capable of deviating from the original position towards a first side of the original position in the tensioning direction or a second side of the original position in the loosening direction; and   at least one stop piece is provided on the housing, the stop piece is located at a side of the swing arm head in the loosening direction and comprises an anti-reverse head, the anti-reverse head of the stop piece is set corresponding to the neck joint portion of the swing arm head;   when the rotatable cover is subjected to an external force in the tensioning direction, the stop piece and the elastic component are configured to allow displacement of the swing arm head in the tensioning direction until the tooth portion is disengaged from the gap, so as to allow rotation of the rotatable cover in the tensioning direction;   when the rotatable cover is subjected to an external force in the loosening direction, the swing arm head is deviated in the loosening direction until the neck joint portion is in contact with at least a part of the anti-reverse head, making the tooth portion of the swing arm head cooperate with the gap in a force-locking manner, thereby the tooth portion being always engaged in the gap to prevent the rotatable cover from rotating in the loosening direction.   
     
     
         2 . The lacing device according to  claim 1 , wherein
 when the neck joint portion is in contact with at least a part of the anti-reverse head, a force applied onto the neck joint portion by the anti-reverse head has a component force that causes the tooth portion of the swing arm head to abut against the gap.   
     
     
         3 . The lacing device according to  claim 1 , wherein
 a surface of the anti-reverse head adjacent to the neck joint portion is configured as a first facing surface, the first facing surface comprises a self-locking support surface, and wherein   the self-locking support surface is configured as a single shaped surface and the single shaped surface comprises an inclined plane, a concave surface or a convex surface; or,   the self-locking support surface is configured as an irregular surface formed by a combination of at least two of the single shaped surfaces.   
     
     
         4 . The lacing device according to  claim 3 , wherein
 a surface of the neck joint portion adjacent to the anti-reverse head is configured as a second facing surface, the second facing surface comprises a self-locking cooperating surface, and at least one of surface contact, linear contact and point contact is formed when the self-locking support surface is in contact with the self-locking cooperating surface.   
     
     
         5 . The lacing device according to  claim 4 , wherein
 a contact between the self-locking support surface and the self-locking cooperating surface at least comprises surface contact when the self-locking support surface is in contact with the self-locking cooperating surface.   
     
     
         6 . The lacing device according to  claim 4 , wherein
 the surface contact between the self-locking support surface and the self-locking cooperating surface is formed by shape-fitting.   
     
     
         7 . The lacing device according to  claim 6 , wherein
 the self-locking support surface is configured as a first inclined plane, and the self-locking cooperating surface is configured as a second inclined plane; or,   the self-locking support surface is configured as a convex surface, and the self-locking cooperating surface is configured as a concave surface; or   the self-locking support surface is configured as a concave surface, and the self-locking cooperating surface is configured as a convex surface.   
     
     
         8 . The lacing device according to  claim 1 , wherein a plurality of swing arm elastic components is provided and fixed on the housing, and wherein
 each of the plurality of swing arm elastic components is formed separately and then connected to the housing; or   the plurality of swing arm elastic components are integrally formed as one piece and then connected to the housing.   
     
     
         9 . The lacing device according to  claim 1 , wherein
 the elastic component is an elastic arm, a first end of the elastic arm is connected to the swing arm, and a second end of the elastic arm is connected to the housing.   
     
     
         10 . The lacing device according to  claim 9 , wherein
 the first end of the elastic arm is connected to the swing arm head, the second end of the elastic arm is connected to a central ring, and the at least one swing arm elastic component is connected to the housing through the central ring.   
     
     
         11 . The lacing device according to  claim 1 , wherein
 the elastic component is an elastic base, the elastic base is connected to form an elastic ring base, and the swing arm of the at least one swing arm elastic component and the elastic ring base cooperatively form a stretchable swing arm ring which is fixedly connected to the housing through the elastic ring base.   
     
     
         12 . The lacing device according to  claim 9 , wherein
 the stop piece further comprises a stop beam, and the anti-reverse head and the stop beam are formed integrally or separately.   
     
     
         13 . The lacing device according to  claim 12 , wherein
 the stop beam is adjacent to at least a part of the elastic arm, and a main extending direction of the at least a part of the stop beam and a main extending direction of at least a part of the elastic arm are configured as equidistant curves.   
     
     
         14 . The lacing device according to  claim 9 , wherein
 the main extending direction of the elastic arm is consistent with a circumferential direction of a circumference parallel to a circumference along which the gap is arranged, and the main extending direction of the elastic arm intersects with a centralline or equivalent centralline of the neck joint portion at an angle β, and 30°≤≤150°.   
     
     
         15 . A lacing device, comprising a rotatable cover, a spool and a housing, the rotatable cover being rotatably set on the housing, the winding spool being supported by the housing and rotatable relative to the housing, wherein
 the housing comprises at least one gap arranged along a circumference;   the spool is configured to roll up a lace when rotating in a tensioning direction and release the lace when rotating in a loosening direction;   at least one swing arm elastic component is provided on the housing, the swing arm elastic component comprises an elastic component and a swing arm which are connected to each other, the swing arm at least comprises a swing arm head, the swing arm head comprises a tooth portion and a neck joint portion, the tooth portion of the swing arm head is configured to be engaged into the gap when the swing arm is in an original position, and the swing arm head is configured to be capable of deviating from the original position towards a first side of the original position in the tensioning direction or a second side of the original position in the loosening direction; and   at least one stop piece is provided on the rotatable cover, the stop piece is located at a side of the swing arm head in the tensioning direction and comprises an anti-reverse head, the anti-reverse head of the stop piece is set corresponding to the neck joint portion of the swing arm head;   when the rotatable cover is subjected to an external force in the tensioning direction, the stop piece and the elastic component are configured to allow displacement of the swing arm head in the loosening direction until the tooth portion is disengaged from the gap, so as to allow rotation of the rotatable cover in the tensioning direction;   when the rotatable cover is subjected to an external force in the loosening direction, the swing arm head is deviated in the tensioning direction until the neck joint portion is in contact with at least a part of the anti-reverse head, making the tooth portion of the swing arm head cooperate with the gap in a force-locking manner, thereby the tooth portion being always engaged in the gap to prevent the rotatable cover from rotating in the loosening direction.   
     
     
         16 . An anti-reverse mechanism for a lacing device, the lacing device having a tightening direction and a loosening direction, wherein the anti-reverse mechanism comprises:
 at least one gap arranged along a circumference;   at least one swing arm elastic component comprising an elastic component and a swing arm which are connected to each other, the swing arm at least comprising a swing arm head, the swing arm head comprising a tooth portion and a neck joint portion, the tooth portion of the swing arm head being configured to be engaged into the gap when the swing arm is in an original position, and the swing arm head being configured to be capable of deviating from the original position towards a first side of the original position in the tensioning direction or a second side of the original position in the loosening direction; and   at least one stop piece being set at a side of the swing arm head, the stop piece and the swing arm elastic component being arranged on the same member and separated, the stop piece comprising an anti-reverse head which is set corresponding to the neck joint portion of the swing arm head;   when the gap or the swing arm head is subjected to an external force in the tensioning direction, the stop piece and the elastic component are configured to allow displacement of the swing arm head along a direction towards a side of the swing arm head that is away from the stop piece until the tooth portion is disengaged from the gap, so as to allow rotation of the gap or the swing arm head in the tensioning direction;   when the gap or the swing arm head is subjected to an external force in the loosening direction, the swing arm head is deviated along a direction towards a side of the swing arm head in which the stop piece is arranged until the neck joint portion is in contact with at least a part of the anti-reverse head, making the tooth portion of the swing arm head cooperate with the gap in a force-locking manner, thereby the tooth portion being always engaged in the gap to prevent the gap or the swing arm head from rotating in the loosening direction.   
     
     
         17 . The anti-reverse mechanism according to  claim 16 , wherein
 when the gap is subjected to the external force in the loosening direction, the stop piece is located at a side of the swing arm head in the loosening direction, and a side of the swing arm head away from the stop piece is a side in the tightening direction.   
     
     
         18 . The anti-reverse mechanism according to  claim 16 , wherein
 when the swing arm head is subjected to the external force in the loosening direction, the stop piece is located at a side of the swing arm head in the tightening direction, and a side of the swing arm head away from the stop piece is a side in the loosening direction.   
     
     
         19 . The anti-reverse mechanism according to  claim 16 , wherein
 the gap comprises an open end, and the open end comprises two end points;   the gap further comprises a first side wall and a second side wall, an end point of the first side wall at the open end is a first end point, and an end point of the second side wall at the open end is a second end point, the first end point and second end point of each gap are located on a gap endpoint circumference;   an angle between a straight line where the second side wall of the gap extends along and a radius of the gap endpoint circumference passing through the second endpoint of the gap is 0°˜10°.   
     
     
         20 . The anti-reverse mechanism according to  claim 16 , wherein
 the tooth portion is an asymmetric tooth, and matches with the gap by shape-fitting.