Harness system with a buckle restraining function

Abstract

A harness system with a buckle restraining function includes an upper buckle, an upper strap and a restraining assembly. The upper strap slidably passes through the upper buckle, and the upper strap includes a shoulder portion and a waist portion divided by the upper buckle. The restraining assembly utilizes an anti-sliding structure having a higher coefficient of friction to engage with the upper strap and further utilizes a stopping component to abut against the upper buckle. Therefore, the present invention can effectively restrain a sliding movement of the upper buckle relative to the upper strap and toward the shoulder portion by engagement of the anti-sliding structure and the upper strap and abutment of the stopping component and the upper buckle, which prevents an excessive decrease of a length of the shoulder portion of the upper strap and prevents a potential risk of injury of the passenger's upper body.

What is claimed is: 
     
         1 . A harness system with a buckle restraining function, the harness system comprising:
 an upper buckle;   an upper strap slidably passing through the upper buckle, and the upper strap comprising a shoulder portion and a waist portion divided by the upper buckle; and   a restraining assembly configured to restrain a sliding movement of the upper buckle relative to the upper strap and toward the shoulder portion when the waist portion of the upper strap is forced by a passenger's body during a collision or an emergency brake of a vehicle.   
     
     
         2 . The harness system of  claim 1 , wherein a through slot is formed on the upper buckle, the restraining assembly comprises an anti-sliding structure and a beam structure disposed on the upper buckle, the through slot comprises a first portion and a second portion divided by the beam structure, the first portion is adjacent to the shoulder portion, the second portion is adjacent to the waist portion, and the upper strap passes through the first portion from bottom to top and passes through the second portion of the through slot from top to bottom. 
     
     
         3 . The harness system of  claim 2 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         4 . The harness system of  claim 2 , wherein the beam structure is fixed on the upper buckle, the anti-sliding structure is disposed on a wall of the beam structure and configured to engage with the upper strap, and the upper strap is engaged by the anti-sliding structure for restraining the sliding movement of the upper buckle relative to the upper strap and toward the shoulder portion when the upper strap is forced to attach with the anti-sliding structure. 
     
     
         5 . The harness system of  claim 4 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         6 . The harness system of  claim 2 , wherein the beam structure is slidably disposed on the upper buckle, the anti-sliding structure is disposed on at least one of a wall of the beam structure and a wall of the first portion of the through slot facing toward each other and configured to engage with the upper strap, and the upper strap is engaged by the anti-sliding structure for restraining the sliding movement of the upper buckle relative to the upper strap and toward the shoulder portion when the upper strap is forced to drive the beam structure to slide relative to the upper buckle and toward the wall of the first portion of the through slot. 
     
     
         7 . The harness system of  claim 6 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         8 . The harness system of  claim 2 , wherein the beam structure is slidably disposed on the upper buckle, the restraining assembly further comprises a slanted surface structure disposed on a wall of the beam structure adjacent to the first portion of the through slot, a protruding length of the slanted surface structure increases from top to bottom, the anti-sliding structure is disposed on the slanted surface structure, and the upper strap is engaged by the anti-sliding structure for restraining the sliding movement of the upper buckle relative to the upper strap and toward the shoulder portion when the upper strap is forced to attach with the anti-sliding structure. 
     
     
         9 . The harness system of  claim 8 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         10 . The harness system of  claim 8 , wherein the restraining assembly further comprises an operating structure connected to the beam structure and a recovering component abutting between the beam structure and the upper buckle, the operating structure is configured to drive the beam structure to slide away from a wall of the first portion of the through slot, and the recovering component is configured to bias the beam structure to slide toward the wall of the first portion of the through slot. 
     
     
         11 . The harness system of  claim 10 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         12 . The harness system of  claim 2 , wherein the beam structure is rotatably disposed on the upper buckle, the anti-sliding structure is disposed on at least one of a wall of the beam structure and a wall of the second portion of the through slot and configured to engage with the upper strap, and the upper strap is engaged by the anti-sliding structure for restraining the sliding movement of the upper buckle relative to the upper strap and toward the shoulder portion when the upper strap is forced to drive the beam structure to rotate relative to the upper buckle along an engaging direction. 
     
     
         13 . The harness system of  claim 12 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         14 . The harness system of  claim 12 , wherein the restraining assembly further comprises a slanted surface structure disposed on the wall of the beam structure, a protruding length of the slanted surface structure increases from bottom to top, and the anti-sliding structure is disposed on the slanted surface structure. 
     
     
         15 . The harness system of  claim 14 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         16 . The harness system of  claim 12 , wherein the restraining assembly further comprises a recovering component abutting between the beam structure and the upper buckle and configured to bias the beam structure to rotate along the engaging direction. 
     
     
         17 . The harness system of  claim 16 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         18 . The harness system of  claim 1 , wherein a through slot is formed on the upper buckle, the upper strap slidably passes through the through slot, the restraining assembly comprises a slanted surface structure and an anti-sliding structure, the slanted surface structure is disposed on a wall of the through slot, a protruding length of the slanted surface structure increases from bottom to top, the anti-sliding structure is disposed on the slanted surface structure, and the upper strap is engaged by the anti-sliding structure for restraining the sliding movement of the upper buckle relative to the upper strap and toward the shoulder portion when the upper strap is forced to attach with the anti-sliding structure. 
     
     
         19 . The harness system of  claim 18 , wherein the restraining assembly further comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap. 
     
     
         20 . The harness system of  claim 1 , wherein the restraining assembly comprises a stopping component detachably disposed on the shoulder portion and configured to abut against the upper buckle for restraining the sliding movement of the upper buckle relative to the upper strap.