CN109793317B

CN109793317B - Buckle lock device of safety belt

Info

Publication number: CN109793317B
Application number: CN201711135413.0A
Authority: CN
Inventors: 孙佳维
Original assignee: Yoke Industrial Corp
Current assignee: Yoke Industrial Corp
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2022-04-05
Anticipated expiration: 2037-11-17
Also published as: CN109793317A

Abstract

A buckle lock device for a safety belt, comprising: the buckling base is provided with a containing chamber and an opening, at least one positioning piece is arranged in the containing chamber, and the opening is communicated with the containing chamber; and a fastener, having a tongue plate for inserting into the chamber from the opening, the tongue plate having at least one slot having an open side; when the tongue plate is inserted into the accommodating chamber, the at least one positioning element enters the at least one clamping groove from the open side of the at least one clamping groove. Through the design, when the fastener is combined with the buckle seat, the fastener can be clamped with the positioning piece of the buckle seat through the clamping groove, so that the fastener can still be stably positioned in the buckle seat even if any one of the fastener and the buckle seat is laterally pushed or pulled, and the situation of unintentional or accidental unlocking is not easy to occur.

Description

Buckle lock device of safety belt

Technical Field

The invention relates to a buckle lock device of a safety belt; in particular to a buckle lock device of a safety belt capable of preventing accidental opening.

Background

The safety belts are provided to restrain a person to a fixed object (e.g., a seat) or to be directly fixed to the person (e.g., a safety belt for working high above the ground) to protect the life of the user. Besides the use of driving safety, the safety belt is also widely used in aircrafts, ships, amusement equipment and even high-altitude operation, and can effectively protect users in many situations.

Generally, a conventional buckle device of a safety belt generally includes a buckle seat and a buckle element, which can be combined together, wherein the buckle seat has a chamber for the buckle element to insert into and combine with. However, when one of the buckle seat or the buckle is pulled by external force, the buckle device is easily opened accidentally, and the combination is not firm, which endangers the personal safety of users.

BRIEF SUMMARY OF THE PRESENT DISCLOSURE

In view of the above, an object of the present invention is to provide a buckle device of a seat belt, which is firmly combined and is not easily loosened by being pulled by an external force.

In order to achieve the above object, the present invention provides a buckle device for a seat belt, comprising: the buckling base is provided with a containing chamber and an opening, at least one positioning piece is arranged in the containing chamber, and the opening is communicated with the containing chamber; and a fastener, having a tongue plate for inserting into the chamber from the opening, the tongue plate having at least one slot having an open side; when the tongue plate is inserted into the accommodating chamber, the at least one positioning element enters the at least one clamping groove from the open side of the at least one clamping groove.

Drawings

Fig. 1 is a perspective view of a buckle device of a safety belt according to an embodiment of the present invention.

Fig. 2 is an exploded view of the buckle lock device of the safety belt of the above embodiment.

Fig. 3 is a top view of the retainer of the above embodiment.

Fig. 4 is a perspective view of the fastener of the above embodiment.

Fig. 5 is a sectional view taken in the direction of 5-5 of fig. 1.

Fig. 6 and 7 are sectional views from 6 to 6 of fig. 1, showing the position of the position-limiting element between the first position and the second position.

Fig. 8 is a sectional view of a buckle lock device of a safety belt according to another embodiment of the present invention, showing various types of retainers of a buckle base.

Fig. 9 is a sectional view of a buckle lock device of a safety belt according to another embodiment of the present invention, showing a different form of buckle base.

[ notation ] to show

100 buckle lock device for safety belt

10a first surface 10b and a second surface 10b of a buckle seat 10a

11 connection part 12 compartment 120 positioning piece

122 side of positioning post 122a and side 122b

122c end 14 opening 16 stop

18 perforation

20 fastener

21 connecting part 22 tongue plate 22a surface

22b surface 24 slot 24a wall

24b groove bottom 26 designation

30 stopper

32 abutting part 34 force bearing part

40 resilient member

P1 first position

P2 second position

Locking device of 200 safety belt

210 button seat 212 positioning piece

220 fastener 222 slot

300 locking device of safety belt

310 button seat 312 positioning piece

320 fastener 322 neck

Detailed Description

In order to more clearly illustrate the present invention, an embodiment will be described in detail below with reference to the accompanying drawings. Referring to fig. 1 and 2, a buckle device 100 of a safety belt according to an embodiment of the present invention includes a buckle base 10, a buckle 20, two limiting members 30, and two elastic members 40.

Referring to fig. 2 and fig. 3 together, the buckle seat 10 has a connecting portion 11, a containing chamber 12 and an opening 14, the connecting portion 11 is used for connecting a safety belt; at least one positioning member 120 is disposed in the chamber 12; the opening 14 communicates with the chamber 12, whereby the chamber 12 communicates with the outside through the opening 14. In this embodiment, the number of the at least one positioning element 120 is two, the buckle base 10 has a first surface 10a and a second surface 10b opposite to each other, the two positioning elements 120 are formed in the accommodating chamber 12 by stamping the first surface 10a and the second surface 10b of the buckle base 10, the two positioning elements 120 are respectively located at two opposite positions of the accommodating chamber 12, and the two positioning elements 120 respectively include two positioning pillars 122. In addition, the number of the positioning elements 120 is not limited to two, and in other applications, only one positioning element 120 may be provided, for example, the positioning element 120 is formed on one of the first surface 10a or the second surface 10b by stamping, and at least one recess is formed on the surface of the buckle seat 10 corresponding to the position of the at least one positioning element 120, which is not limited to the above description.

In addition, a plurality of stoppers 16 are disposed in the accommodating chamber 12 of the buckle seat 10, and in the present embodiment, the stoppers 16 are formed by stamping and protruding into the accommodating chamber 12 from the first surface 10a and the second surface 10b of the buckle seat 10 respectively. The above-mentioned forming of the positioning element 120 and the stopping element 16 by stamping has the advantages of convenient processing and being beneficial to rapid mass production, thereby reducing the production cost.

As shown in fig. 2 and fig. 4, the buckle 20 has a connecting portion 21 and a tongue plate 22, the connecting portion 21 is used to connect a safety belt, the tongue plate 22 is used to be inserted into the accommodating chamber 12 from the opening 14 of the buckle seat 10, the tongue plate 22 has at least one engaging slot 24, the at least one engaging slot 24 has an open side, wherein when the tongue plate 22 is inserted into the accommodating chamber 12, the at least one positioning member 120 enters the at least one engaging slot 24 from the open side of the at least one engaging slot 24 to be engaged with the at least one engaging slot 24. In the embodiment, the tongue plate 22 has two

opposite surfaces

22a and 22b, the two

surfaces

22a and 22b are respectively formed with one of the slots 24, and the open sides of the two slots 24 are located on the same side, for example, facing the end of the tongue plate 22. Thus, with the above design, and with reference to fig. 2 to 5, when the tongue plate 22 is inserted into the chamber 12 of the buckle 10, the two positioning members 120 enter the two slots 24 from the open sides of the two slots 24, are respectively accommodated in the two slots 24, and can be respectively engaged and positioned with the two slots 24, moreover, one

side portions

122a, 122b of the two positioning posts 122 of each positioning member 120 can be respectively abutted against the two side groove walls 24a of the slot 24, one end 122c of the two positioning posts 122 can be abutted against the groove bottom 24b of the slot 24, so that, after the fastening seat 10 is combined with the fastening member 20, even if any one of the buckle seat 10 and the buckle 20 is pushed or pulled by an external force, the positioning relationship between the positioning element 120 and the engaging groove 24 can prevent the buckle 20 from over-deflecting and deflecting relative to the buckle seat 10, so as to provide the effects of firm connection and preventing unexpected or unexpected loosening. In addition, it is worth mentioning that the side portion 122a of the two positioning posts 122 has a convex arc surface for abutting against the two side groove walls 24a of the slot 24, and the design of the convex arc surface can make the groove wall of the slot 24 of the tongue plate 22 more easily abut against and be fastened with the positioning post 122 along the convex arc surface.

As shown in fig. 1 to 2 and fig. 6 to 7, the two position-limiting members 30 are disposed in the accommodating chamber 12 of the buckle base 10 and can move between a first position P1 (shown in fig. 6) and a second position P2 (shown in fig. 7). In the present embodiment, the limiting member 30 is pivotally disposed in the accommodating chamber 12 and can pivot between the first position P1 and the second position P2. The position-limiting member 30 has an abutting portion 32 and a stressed portion 34, the abutting portion 32 is used for abutting against the tongue plate 22 or abutting against the stopping member 16, and further, when the two position-limiting members 30 are located at the first position P1, one end surfaces of the abutting portions 32 of the two position-limiting members 30 abut against two side portions of the tongue plate 22 of the fastening member 20, so as to limit the fastening member 20 from being separated from the buckle seat 10, and when the two position-limiting members 30 are located at the second position P2, the end surfaces of the abutting portions 32 of the two position-limiting members 30 leave the tongue plate 22 of the fastening member 20, and the abutting portions 32 abut against the stopping member 16, so as to enable the fastening member 20 to be separated from the buckle seat 10.

In addition, the two elastic members 40 are disposed in the accommodating chamber 12, and each elastic member 40 is connected to the limiting member 30 and the fastening seat 10, respectively, for providing an elastic force to keep the limiting member 30 at the first position P1 in a normal state. In the present embodiment, the elastic element 40 is a spring, and two ends of the elastic element are respectively connected to the limiting element and the buckle base 10, but the invention is not limited thereto in other applications.

It should be noted that, in conjunction with fig. 1 and 2, in one embodiment, a through hole 18 may be formed on the buckle base 10 to communicate with the chamber 12, and an indication portion 26 may be formed on the tongue 22 of the buckle 20. When the tongue 22 of the fastening member 20 is inserted into the chamber 12 of the buckle base 10, the indication portion 26 can be exposed from the through hole 18, so as to provide one of the criteria for the user to identify whether the fastening member 20 is correctly fastened to the buckle base 10. For example, it can be designed that the indication portion 26 can be completely exposed from the through hole 18 when the fastener 20 and the seat 10 are completely fastened and positioned, and herein, if the user finds that the indication portion 26 is not completely exposed from the through hole 18, it indicates that the fastener 20 and the seat 10 are not completely fastened and needs to be fastened again, thereby improving the safety of the buckle device using the safety belt. In addition, in practice, it is not limited to the indication portion 26 completely exposed from the through hole 18, and in other applications, the indication portion 26 may be designed with a plurality of blocks, which may represent different meanings, such as complete fastening, incomplete fastening, and re-fastening.

Referring to fig. 8, a buckle device 200 of a safety belt according to another embodiment of the present invention is different from the above embodiments in that a positioning element 212 of a buckle seat 210 of the present embodiment has a long strip shape, and an end of the positioning element 212 can be abutted against a groove bottom of a slot 222 of a buckle 220, and two side portions of the positioning element 212 can be abutted against two side groove walls of the slot 222, respectively, thereby providing a stable positioning effect. In addition, further, the two side portions of the positioning element 212 may adopt a design having convex arc surfaces for abutting against the two side groove walls of the clamping groove, thereby facilitating the sliding of the positioning element 212 into or out of the clamping groove 222 no matter when the fastener seat 210 and the fastener 220 are mounted or dismounted.

Referring to fig. 9, a buckle device 300 of a safety belt according to another embodiment of the present invention is different from the above-mentioned embodiments in that a positioning member 312 may be disposed on only one side of a chamber of a buckle seat 310 for being engaged with a slot 322 on either side of a buckle 320, but the embodiment is not limited to the above-mentioned embodiment in which positioning members are disposed on two opposite positions.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications to the present invention as described in the specification and claims should be understood as included in the scope of the present invention.

Claims

1. A buckle lock device for a safety belt, comprising:

the buckling seat is provided with a containing chamber and an opening, at least one positioning piece is arranged in the containing chamber and comprises two positioning columns, the opening is communicated with the containing chamber, the positioning piece is formed in the containing chamber through stamping processing on the surface of the buckling seat, and at least one concave part is formed on the surface of the buckling seat relative to the position of the positioning piece; and

a fastener having a tongue plate for inserting into the chamber from the opening, the tongue plate having at least one slot having an open side; when the tongue plate is inserted into the accommodating chamber, the at least one positioning part enters the at least one clamping groove from the open side of the at least one clamping groove, one end of each positioning column is used for abutting against the groove bottom of the at least one clamping groove, and one side part of each positioning part is used for abutting against the groove walls on two sides of the at least one clamping groove.

2. The buckle-locking device of safety belt as claimed in claim 1, wherein the side portion has a convex curved surface for abutting against a groove wall of the at least one groove.

3. The buckle device of a safety belt according to claim 1, wherein said tongue plate has two opposite surfaces, said two surfaces respectively have one of said notches, and said open sides of said two notches are located on the same side.

4. The buckle-locking device of safety belt as claimed in claim 3, wherein two positioning members are disposed in the chamber and located at two opposite positions of the chamber respectively; when the tongue plate is inserted into the accommodating chamber, the two positioning pieces are respectively accommodated in the two clamping grooves.

5. The buckle-locking device of safety belt as claimed in claim 1, wherein the buckle seat has a through hole communicating with the chamber; the tongue plate of the fastener is provided with a mark part, and when the tongue plate is inserted into the accommodating chamber, the mark part is exposed outwards from the through hole.

6. The buckle lock device of a safety belt according to claim 1, comprising a stopper disposed in the chamber of the buckle base and movable between a first position and a second position; a stopping piece is arranged in the containing chamber of the buckling seat; when the limiting piece is located at the first position, one end face of the limiting piece abuts against the fastener to limit the fastener from being separated relative to the fastener seat; when the limiting member is located at the second position, the end surface of the limiting member leaves the fastener, and the fastener can be separated from the fastener seat.

7. The buckle lock device of a safety belt according to claim 6, wherein the stopper is formed by punching the buckle base.