TW201713386A - Safety belt buckle device having an insulation surface layer to block electric conduction and ensuring service security - Google Patents

Abstract

A safety belt buckle device comprises a buckle seat, a fastener, two positioning members and two elastic members. The buckle seat is formed by aligning a pair of shell bodies, and each shell body comprises a first metal core and a first insulating layer. The fastener comprises a second metal core and a second insulating layer, and is additionally provided with a tongue plate for inserting into the receptacle of the buckle seat. The two positioning members are pivoted on the buckle seat and located in the receptacle. When each positioning member is pivoted to the first position, the retaining portion of the positioning member restricts the tongue plate, making the fastener unable to be separated from the buckle seat. When each positioning member is pivoted to the second position, the retaining portion of the positioning member is away from the tongue plate, so that the fastener can escape from the buckle seat. The two elastic members respectively urge each positioning member to move it toward the first position. Therefore, the insulation effect of the buckle device is enhanced and the buckle strength is maintained.

Description

Seat belt buckle device

The invention relates to a seat belt; in particular to a buckle device for a seat belt.

According to the purpose of the seat belt, the purpose is to limit the person to a fixed object (such as a seat) or directly to the person (such as a seat belt) to protect the safety of the user. In addition to driving safety, seat belts are also widely used in aircraft, ships, amusement equipment, and even aerial work, and can effectively protect users in many situations. The buckle of the conventional seat belt includes a buckle and a fastener which can be combined, and in order to ensure safety, the buckle or the fastener is mostly made of metal material, so that when the seat belt is suddenly pulled by external force, Provide sufficient bonding strength to prevent the buckle from coming off.

When the buckle device is not in use, the buckle seat and the fastener are mostly separated from each other. However, the buckle seat and the fastener are usually combined with the two belts of the safety belt, and the belt body will follow the belt body. And move. However, in some environments, there may be a power supply beside the seat. When the metal buckle or fastener is close to or touches the power supply, there may be a situation of electric shock or short-circuit of the power supply, posing a hazard. For example, when a person attaches a seat belt having a metal buckle or a fastener to the body during work, there is a risk of electric shock when approaching a place where electric power is easily felt. Therefore, the design of the buckle of the conventional seat belt has not yet been improved, and there is still room for improvement.

In view of the above, an object of the present invention is to provide a buckle device for a seat belt, which has an insulating surface layer to prevent electrical conduction, thereby ensuring safety in use.

In order to achieve the above object, a buckle device for a seat belt includes a buckle seat, a fastener, two positioning members and two elastic members, wherein the buckle seat is formed by two shells, each The housing comprises a first metal core material and a first insulating layer partially covering the outer circumference of the first metal core material; a chamber is formed between the two shells and an opening communicates with the chamber; the fastener comprises a The second metal core material and a second insulating layer are partially covered on the outer circumference of the second metal core material; the fastener has a tongue plate for inserting into the cavity from the opening; the two positioning members are pivoted The positioning member is pivoted between a first position and a second position, and each of the positioning members has a stopping portion, and each of the positioning members is located at each of the first positions. In the position, each of the stopping portions limits the tongue plate to a predetermined position, so that the fastening member cannot be separated from the buckle seat, and each of the stopping members is located away from the tongue plate when each of the positioning members is located at each of the second positions. The fastener can be separated from the buckle; the two elastic members are disposed in the chamber, Respectively push against each of the positioning member with each of the movement toward the first position.

The effect of the invention is that the metal is used as the core material, and the outer layer is coated with the insulating layer, which can effectively improve the insulation effect of the buckle device, and maintain the strength of the joint and increase the safety of use.

In order to explain the present invention more clearly, a preferred embodiment will be described in detail with reference to the drawings. Referring to FIG. 1 and FIG. 2, a buckle device for a seat belt according to a preferred embodiment of the present invention includes a buckle seat 10, a plurality of coupling members 20, a fastener member 26, two positioning members 40, and a safety device. With fixing rod 48.

The buckle seat 10 is a combination of a belt (not shown) of the seat belt. The buckle seat 10 is formed by the two shells 12 being combined. In this embodiment, the two shells 12 have the same structure and each have a phase. An inner side of the first metal core material 14 and a first insulating layer 16 partially covering the outer circumference of the first metal core material 14 , the first insulating layer 16 is plastic injection molding. A chamber 10a is formed between the two housings 12 and an opening communicates with the chamber. 3 and FIG. 4, the first insulating layer 16 on the inner side of each of the housings 12 has an inner surface 16a, and the inner surfaces 16a of the two housings face the wall surfaces constituting the chamber 10a. At least one of the inner surfaces 16a of the housing 12 is recessed to form a guiding slot 162. In this embodiment, the two housings 12 each have a guiding slot 162, and each of the guiding slots 162 has an open end 162a communicating with the opening 10b. And a portion of each of the first metal core members 14 is exposed in each of the guide grooves 162. The first insulating layer on the inner side of the two casings 12 further has a plurality of transparent regions 16c, and the first metal core portions are exposed in the transparent regions 16c. The buckle seat 10 further has a hollow portion 10c penetrating the two casings 12, and an elongated metal block 18 is disposed in each of the two through-opening portions 16c of the casings at the periphery of the hollow portion 10c.

The two housings 12 each have a plurality of through holes 122 extending through the inner side and the outer side of each of the housings 12, wherein each of the through holes 122 of the housing 12 and the other through holes 122 of the other housing 12 Correspondingly, and two pairs of through holes 122 communicate with the chamber 10a. Each of the through holes 122 includes a first hole segment 122a and a second hole segment 122b. The first hole segment 122a extends through the first metal core member 14, and each of the second hole segments 122b is from the housing 12. An outer surface 16b of the outer first insulating layer 16 is concavely formed, and a diameter of each of the second holes 122b is larger than an aperture of each of the first holes 122a, so that portions of the first metal core 14 are exposed to each In the second hole segment 122b. In addition, at least one of the two housings 12 has a through hole 124 extending through the guiding groove 162 and communicating with the receiving chamber 10a. In this embodiment, the two housings 12 each have a corresponding one of the through holes 124.

The plurality of rivets are respectively disposed in the two corresponding through holes 122 of the two housings 12, and each of the coupling members 20 has two ends, one end of which has a head 202 located therein. a second hole segment 122b of the through hole 122 of the casing and corresponding to a corresponding one of the first metal core members 14 and a reverse portion (not shown) at the other end of the casing is located at the other of the casings 12 The second hole portion 122b of the corresponding through hole 122 is opposite to the corresponding other first metal core material 14 to fix the two casings 12. In practice, each of the coupling members 20 can also include a bolt and a nut, and the two housings 12 are fixed by a combination of a bolt and a nut.

In order to more completely insulate the outer side of the buckle seat 10, the plurality of first insulating members 24 are respectively filled in the through holes 122, and the first insulating members 24 are made of an insulating material (in this embodiment, plastic) The first insulating members 24 are respectively coupled to the first insulating layer 16 of each of the housings 12 and close the second hole segments 122b of the through holes 122 to cover the metal bonding members 20. In practice, if there is no need for full insulation on the outer side of the buckle seat 10, the first insulation members 24 may not be provided.

The exposed portion of the first metal core material 14 on the inner side and the outer side of each of the casings 12 is formed when the first insulating layer 16 is molded by plastic, and the pillars in the cavity of the mold are abutted, thereby allowing the first metal core material 14 to be abutted. A distance from the wall surface of the cavity is formed, and the first hole 122a of the first metal core 14 is positioned for the cavity, so that the first insulating layer 16 has a certain thickness after the plastic injection molding. The first metal core 14 is well coated. After the drafting, the portion of the first metal core 14 is exposed. In this embodiment, the first hole 122a of each of the through holes 122 is used to pass through the joint member 20, and the first portion of the second hole portion 122b is exposed. The metal core material 14 is used as the bonding member 20 for abutting, whereby the first insulating layer 16 on the outer side of each of the housings 12 does not form other redundant transparent regions, so that no other first insulation is required. Covered by pieces.

Referring to FIG. 5 and FIG. 6 , the fastener 26 includes a second metal core 28 and a second insulating layer 30 partially covering the outer circumference of the second metal core 28 . The second insulating layer 30 is plastic injection molded. The fastener 26 has a tongue plate 32 and a grip plate 34 for inserting into the chamber 10a from the opening 10b of the buckle seat 10. The grip plate 34 is for holding by a person and for connecting a seat belt. Another belt (not shown). In this embodiment, the tongue plate 32 is formed with a convex rail 322 protruding from the second insulating layer 30 of at least one of the two sides. In this embodiment, both have a convex rail 322, and each of the convex rails 322 The shape cooperates with the guide grooves 162 on each of the housings 12. A first counterbore 322a is formed in the surface of each of the convex holes 322. The first counterbore 322a has the same aperture and is located on the same axis. A portion of the second metal core material 28 is exposed in each of the first counterbore 322a. Preferably, the aperture of each of the first counterbore 322a is slightly smaller than or equal to the aperture of the perforation 124 on each of the housings 12.

Each of the first counterbore 322a is provided with a second insulating member 36. Each of the second insulating members 36 is made of an insulating material and is coupled to the second insulating layer 30 to close the first counterbore 322a. The color of the second insulating member 36 is different from the color of the second insulating layer 30. In this embodiment, the colors of the second insulating members 36 are different from the color of the second insulating layer 30. When the tongue plate 32 is inserted into a predetermined position of the housing 10a of the buckle seat 10, the two second insulating members 36 respectively correspond to the through holes 124 of the two housings 12, and the outer sides of the housings 12 are respectively A second insulating member 36 of a different color is seen to serve as a positioning mark for the tongue plate 32 to be inserted into the predetermined position. The two sides of the tongue 32 have a recess 324, respectively.

In addition, the second insulating layer 30 on one side of the fastener 26 is further recessed to form a plurality of second counterbore 322b, 342, one of the second counterbore 322b is located on the tongue plate, and the second second sinker The holes 342 are located on the holding plate 34, and the second counter holes 322b, 342 surround the first counter holes 322a. A portion of the second metal core material 28 is exposed in each of the second counterbore holes 322b, 342. Each of the second counterbore holes 322b, 342 is respectively provided with a plurality of third insulating members 38, each of the third insulating members 38 is made of an insulating material and combined with the second insulating layer 30 and encloses each of the second sinks. Holes 322b, 342.

Each of the first counterbore 322a of the fastener 26 and the exposed portion of the second metal core 28 of each of the second counterbore 322b, 342 are attached to the cavity of the mold when the second insulating layer 30 is molded by plastic. The pillars in the middle are abutted, so that the second metal core material 28 is separated from the wall surface of the cavity by a distance, so that the second insulation layer 30 has a certain thickness after the plastic injection molding, and the second metal core material 28 is well covered. After the drafting, the second metal core material 28 is exposed. In this embodiment, the second insulating member 36 filled with the first counterbore 322a is used as a positioning mark, so that the user can further confirm the tongue. The board 32 has been inserted into the predetermined position. In practice, the size of the second metal core material 28 can also be used to design the mold without the protrusion of the second counterbore 322b on the tongue 32, so that the tongue plate does not have the second counterbore 322b; Of course, it is also possible to design the mold to have no studs that are positioned against the second counterbore 342 of the grip plate 34, so that the grip plate 34 does not have the second counterbore 342.

Referring to FIG. 7 , the two positioning members 40 are located in the chamber 10 a , and each of the positioning members 40 includes a third metal core 42 and a third insulating layer 44 partially covering the third metal core 42 . Layer 44 is plastic injection molded. The two positioning members 40 respectively have a pivot hole 402, and the two pivot holes 402 respectively correspond to the two pairs of through holes 122 communicating with the chamber 10a, and two of the coupling members 20 respectively pass through the two positioning members 40. The pivoting hole 402 is configured to pivot the two positioning members 40 in the chamber 10a, and each of the positioning members can be in the first position P1, P1' shown in FIG. 7 and the second position shown in FIG. P2, P2' pivoting. A portion of each of the third metal cores 42 is not covered by the third insulating layer 44, and the outer periphery of the other portion is covered by the third insulating layer 44, and the third metal core 42 is not covered by the third insulating layer 44. There is a stop portion 404, and the stop portions 404 of the two positioning members 40 face and face the center of the chamber 10a. Each of the positioning members 40 further has a force receiving portion 406. Each of the force receiving portions 406 protrudes outside the buckle seat 10 and is biased by an external force to pivot the positioning members 40. Each of the force receiving portions 406 is located at each of the positioning portions 40. Three insulating layers 44.

The two chambers are provided with two elastic members, for example, two first springs 46. One end of each of the first springs 46 abuts the position of each of the positioning members 40 opposite to the stopping portions 404. The other end of the spring 46 abuts against the side wall of the chamber 10a, thereby pushing the positioning member 40 to move in the direction of each of the first positions P1, P1' in a normal state.

The exposed portion of each of the third metal core members 42 is attached to the third insulating layer 44 during plastic injection molding, and the pillars in the cavity of the mold are abutted, so that the third metal core material 42 is separated from the wall surface of the cavity by a distance. The third insulating layer 44 has a certain thickness after injection molding of the plastic, and the third metal core 42 is satisfactorily coated. In this embodiment, each of the stopping portions 404 is skillfully designed on the exposed portion of each of the third metal core members 42 so that the blocking portion 404 can be effectively prevented from being worn.

The seat belt fixing rod 48 includes a fourth metal core material 50 and a fourth insulating layer 52. The fourth insulating layer 52 is plastic injection molded. The fourth metal core material 50 has a rod shape and has a shaft 502 and two joint ends 504 connected to the two ends of the shaft. The shaft 502 is located in the hollow portion 10c of the buckle seat 10 and is the fourth insulation layer 52. The two bonding ends 504 are not covered by the fourth insulating layer 52. The two joint ends 504 are slidably coupled to the buckle seat 10 along the respective housings 12 and respectively abut the two metal blocks 18 . The second housing 12 is further provided with two elastic members, which are exemplified by two second springs 54. The second springs 54 respectively abut against the respective connecting ends 504 and an inner wall of the housing 12, thereby pushing The belt fixing rod 48 is moved away from the opening 10b for gripping the belt of the seat belt.

The two bonding ends 504 are formed by the protrusions in the cavity of the mold when the fourth insulating layer 52 is injection molded by plastic, so that the shaft of the fourth metal core 50 is separated from the wall surface of the cavity by a distance. After the plastic is injection molded, the fourth insulating layer 52 has a certain thickness, and the shaft 502 is well covered. In the embodiment, the portion which is easy to rub when the seat belt fixing rod 48 is slid (that is, the two joint ends 504) is abutted by the stud of the mold, thereby effectively utilizing the exposed portion of the fourth metal core material 50.

7 to 9, in use, the tongue 32 of the fastener 26 is inserted into the chamber 10a from the opening 10b of the buckle 10, and the tongue 32 is pushed against the two during insertion. The positioning member 40 is not covered by the third insulating layer 44 such that each of the positioning members 40 is pivoted from the first position P1, P1' to the second position P2, P2' (refer to FIGS. 7 and 8). When the tongue 32 is pushed to the predetermined position (refer to FIG. 9), each of the first springs 46 pushes each of the positioning members 40 back to the first positions P1, P1'. At this time, the two positioning members The stop portion 404 of the tongue 32 is located in the two recesses 324 of the tongue 32 to limit the tongue 32 from being in the predetermined position so that the fastener 26 cannot be separated from the buckle seat 10. Referring to FIG. 10, the second insulating member 36 on the tongue 32 is completely formed in the through hole 124 of each of the housings 12, so that the user can visually confirm that the tongue 32 has been pushed to the predetermined position. It is worth mentioning that the engagement of the convex rails of the tongue plate 32 with the guide grooves 162 of the housing 12 can further limit the yaw of the tongue plate 32 so that the tongue plate 32 is firmly located at the buckle seat 10 . in.

If the user wants to separate the fastener 26 from the buckle seat 10, the force receiving portion 406 of the two positioning members 40 is urged to push each of the positioning members 40 to the second positions P2, P2'. After the respective stopping portions 404 are separated from the respective concave portions 324 of the tongue plate 32, the tongue plate 32 can be pulled out to separate the fastener member 26 from the buckle seat 10.

In summary, the invention utilizes metal as the core material and externally coats the insulating layer, which can effectively improve the insulation effect of the buckle device, and maintain the strength of the combination and increase the safety of use. In addition, the present invention further utilizes a bare metal region which is inevitably formed during injection molding of the insulating layer as a specific use to improve the functionality of the latching device.

The above description is only for the preferred embodiments of the present invention, and equivalent changes to the scope of the present application and the scope of the patent application are intended to be included in the scope of the present invention.

[this invention]
10‧‧‧ buckle seat
10a‧‧ ‧ room
10b‧‧‧ openings
10c‧‧‧镂空部
12‧‧‧ housing
122‧‧‧through holes
122a‧‧‧first hole section
122b‧‧‧second hole section
124‧‧‧Perforation
14‧‧‧First metal heartwood
16‧‧‧First insulation
16a‧‧‧ inner surface
162‧‧ ‧ guide slot
162a‧‧‧Open end
16b‧‧‧ outer surface
16c‧‧‧Through area
18‧‧‧metal block
20‧‧‧Connected parts
202‧‧‧ head
24‧‧‧First insulation
26‧‧‧fasteners
28‧‧‧Second metal heartwood
30‧‧‧Second insulation
32‧‧‧ tongue plate
322‧‧‧ convex rail
322a‧‧‧First counterbore
322b‧‧‧Second counterbore
324‧‧‧ recess
34‧‧‧ Holding board
342‧‧‧Second counterbore
36‧‧‧Second insulation
38‧‧‧ Third insulation
40‧‧‧ Positioning parts
402‧‧‧Pivot hole
404‧‧‧stops
406‧‧‧ Force Department
42‧‧‧ Third metal heartwood
44‧‧‧ Third insulation
46‧‧‧First spring
48‧‧‧Safety belt fixing rod
50‧‧‧fourth metal heartwood
502‧‧‧ shaft
504‧‧‧Binding end
52‧‧‧fourth insulation layer
54‧‧‧Second spring
P1, P1'‧‧‧ first position
P2, P2'‧‧‧ second position

1 is a perspective view of a buckle device for a seat belt according to a preferred embodiment of the present invention. 2 is a partially exploded perspective view of the buckle device of the seat belt according to the above preferred embodiment of the present invention. Figure 3 is a front elevational view of the outer casing of the preferred embodiment of the present invention. Figure 4 is a front elevational view of the inside of the housing of the above preferred embodiment of the present invention. Figure 5 is a front elevational view of one side of the fastener of the above preferred embodiment of the present invention. Figure 6 is a front elevational view of the other side of the fastener of the above preferred embodiment of the present invention. 7 to FIG. 9 are schematic diagrams showing the joining process of the buckle device of the seat belt according to the above preferred embodiment of the present invention. Figure 10 is a front elevational view showing the combination of the buckle of the seat belt according to the above preferred embodiment of the present invention.

10‧‧‧ buckle seat

10c‧‧‧镂空部

12‧‧‧ housing

24‧‧‧First insulation

26‧‧‧fasteners

34‧‧‧ Holding board

40‧‧‧ Positioning parts

48‧‧‧Safety belt fixing rod

Claims (10)

A buckle device for a seat belt, comprising: a buckle seat formed by two shells, each of the shells comprising a first metal core material and a first insulating layer partially covering the first metal core material a peripheral portion; a cavity and an opening are formed between the two housings; a fastener comprising a second metal core and a second insulating layer partially covering the outer periphery of the second metal core; The member has a tongue plate for inserting into the chamber from the opening; two positioning members are pivotally disposed on the buckle seat and located in the chamber; each of the positioning members can be in a first position and a The second position pivots, each of the positioning members has a stopping portion. When the positioning members are located in the first positions, each of the stopping portions limits the tongue to a predetermined position, so that the fastening member cannot be opposite to the The fastening seats are separated. When the positioning members are located in the second position, each of the blocking portions is away from the tongue plate, so that the fastening member can be separated from the buckle seat; and two elastic members are disposed in the housing. Each of the positioning members is pushed to move in a direction to each of the first positions. The fastening device of the safety belt of claim 1, wherein the two housings each have a plurality of through holes; the first insulating layers of the two housings respectively have an outer surface, and the two outer surfaces are opposite to each other; Each of the through holes includes a first hole segment and a second hole segment, each of the first holes extends through the first metal core, and each of the second holes is recessed from an outer surface of each of the first insulating layers Forming, and each of the second hole segments has a larger diameter than each of the first hole segments, such that portions of the first metal core material are exposed in each of the second hole segments; a plurality of coupling members are respectively disposed on the second hole segment Two corresponding holes of the housing, each of the coupling members has two ends, one end of which is located in a second hole section of one of the through holes of the one of the casings and is corresponding to a corresponding one of the first metal core materials, and One end is located in the second hole section of the corresponding through hole of the other housing and is opposite to the corresponding other first metal core material. The buckle device for a seat belt according to claim 2, comprising a plurality of first insulating members, which are made of an insulating material, each of the first insulating members being coupled to each of the casings and closing the second holes of the through holes segment. The fastener device of claim 2, wherein the two positioning members respectively have a pivot hole; wherein the two coupling members respectively pass through the pivot holes of the two positioning members. The buckle device of the seat belt according to claim 1, comprising two second insulating members, which are made of an insulating material; the two opposite sides of the tongue plate of the fastener have a first counterbore, each of the first a counterbore is recessed from the surface of the second insulating layer; a portion of the second metal core is exposed in each of the first counterbore; each of the second insulating members is coupled to the fastener and encloses each of the first sinks hole. The buckle device of the safety belt of claim 5, wherein at least one of the housings has a through hole communicating with the chamber; the two first counterbore holes are located on the same axis; wherein at least one of the second insulation The color of the piece is different from the color of the second insulating layer, and when the tongue is at the predetermined position, the second insulating member different in color from the second insulating layer corresponds to the through hole. The buckle device for a seat belt according to claim 5, comprising a plurality of third insulating members, which are made of an insulating material; one side of the fastener has a plurality of second counterbore, each of the second counterbore The surface of the second insulating layer is concavely formed, and a portion of the second metal core material is exposed in each of the second counterbore; each of the third insulating members is coupled to the fastener and encloses each of the second counterbore. The buckle device of the safety belt of claim 1, wherein the first insulating layers of the two casings each have an inner surface, and the two inner surfaces are wall faces facing each other and constituting the chamber, wherein one of the inner surfaces A concave groove is formed in the surface, and a portion of the first metal core material is exposed in the guiding groove; a second insulating layer on the tongue plate of the fastener protrudes to form a convex rail to cooperate with the guiding groove. The buckle device of the safety belt of claim 1, wherein each of the positioning members comprises a third metal core material and a third insulating layer partially covering the outer circumference of the third metal core material, each of the blocking portions being located in each of the first The three metal core materials are not covered by the third insulating layer; each of the positioning members further has a force receiving portion, and each of the force receiving portions protrudes outside the buckle seat and is subjected to an external force to pivot the positioning members. Each of the force receiving portions is located on each of the third insulating layers. The buckle device of the safety belt of claim 1, wherein the buckle has a hollow portion; a seat belt fixing rod comprising a fourth metal core and a fourth insulating layer, the fourth metal core having a rod And a second joint end connected to the two ends of the shaft, the shaft is located in the hollow portion and covered by the fourth insulating layer, the two joint ends are slidably coupled to the buckle seat and are not the fourth Covered by an insulating layer.