CN103057513B - Child safety belt with chest buckle device - Google Patents

Abstract

A child safety belt comprises a first shoulder belt, a second shoulder belt, a first chest buckle connector and a second chest buckle connector, wherein the first chest buckle connector is connected to the first shoulder belt and provided with a clamping portion, the second chest buckle connector is connected to the second shoulder belt and provided with a joint structure, the clamping portion can be clamped and locked on a first position and a second position of the joint structure, when the first position is clamped and locked, the distance between the first shoulder belt and the second shoulder belt is maintained at a first distance, when the second position is clamped and locked, the distance between the first shoulder belt and the second shoulder belt is maintained at a second distance, and the second distance is larger than the first distance.

Description

Child safety belt with chest buckle

technical field

The invention relates to a child safety belt provided with a chest buckle device.

Background technique

Child safety seats generally include child safety belts. The child safety belt includes a chest buckle device, which is used to maintain the correct position of the shoulder belt on the child's shoulders. There is a problem in the existing chest buckle device, that is, the child safety seat cannot carry children of different sizes.

In view of this, there is a need for a chest buckle device suitable for children of different sizes, which can at least improve the above defects.

Contents of the invention

The object of the present invention is to provide a child safety belt with a chest buckle device, so that it can be used for children of different sizes.

According to an embodiment of the present invention, a child safety belt is provided, wherein the child safety belt includes: a first shoulder strap; a second shoulder strap; a first chest buckle connector connected to the first The shoulder strap has an engaging portion; and a second chest buckle connector connected to the second shoulder strap and having an engaging structure, the engaging portion can be engaged and locked in the engaging structure at a first position and A second position, when engaged and locked at the first position, the distance between the first shoulder strap and the second shoulder strap is maintained at a first distance, when engaged and locked at the second position, the The distance between the first shoulder strap and the second shoulder strap is maintained at a second distance, and the second distance is greater than the first distance.

The child safety belt is characterized in that: the second chest buckle connector includes a slot, and the first chest buckle connector can be inserted into the slot.

The child safety belt described above is characterized in that: the engaging structure includes at least two openings, the two openings correspond to the first position and the second position respectively, and the engaging portion has a convex portion, which can be engaged Fits any of the openings.

The child safety belt is characterized in that the two openings are connected to each other transversely.

The child safety belt is characterized in that: the second chest buckle connector includes a slot, the first chest buckle connector includes a tongue piece, and the tongue piece can be inserted into the slot until the engagement until the part is engaged with the joint structure.

The child safety belt is characterized in that: the engaging portion is connected to the tongue and is close to an end of the tongue, and the engaging portion has a free end, and the free end is located in the middle of the tongue In the area, the free end of the engaging portion can be engaged with the engaging structure.

The child safety belt is characterized in that: the joint structure includes at least two openings, the two openings respectively correspond to the first position and the second position, the free end of the engaging part has a convex part, The protrusion can be engaged with any one of the openings.

The above child safety belt is characterized in that: the first chest buckle connector including the engaging portion, the tongue piece and the protruding portion is integrally formed.

The child safety belt is characterized in that: the tongue has an end, and the slot has a narrow channel, when the protrusion is engaged with any of the openings, the end is engaged with the channel.

According to an embodiment of the present invention, a child safety seat with a child safety belt is provided.

According to an embodiment of the present invention, there is provided a chest buckle device used in a child safety belt, wherein the chest buckle device used in a child safety belt includes: a first chest buckle connector having an engaging portion ; and a second chest buckle connector, which has an engaging structure, and the engaging portion can engage and lock with the engaging structure at one of the first and second positions.

The chest buckle device is characterized in that: the first chest buckle connector and the second chest buckle connector move relatively along a displacement axis to engage with each other, and the first and second positions are along a displacement axis. The displacement axes are spaced apart.

The chest buckle device is characterized in that: the second chest buckle connector includes a slot, and the first chest buckle connector can move along a displacement axis so as to be inserted into the slot, and the first chest buckle connector can move along a displacement axis to be inserted into the slot. The position and the second position are distributed along the displacement axis of the first chest buckle connector.

The chest buckle device is characterized in that: the engaging structure includes at least two openings, the two openings respectively correspond to the first position and the second position, and the engaging part has a protrusion, and the protrusion can be snap into any of the openings.

The chest buckle device is characterized in that the two openings are connected to each other transversely.

The chest buckle device is characterized in that: the second chest buckle connector includes a slot, and the first chest buckle connector includes a tongue, and the tongue can be inserted into the slot until the engagement until the part is engaged with the joint structure.

The chest buckle device is characterized in that: the engaging portion is connected to the tongue and is close to an end of the tongue, the engaging portion has a free end, and the free end is located in a middle area of the tongue , the free end of the engaging portion can be engaged with the engaging structure.

The chest buckle device is characterized in that: the engaging structure includes at least two openings, the two openings respectively correspond to the first position and the second position, the free end of the engaging part has a convex part, The protrusion can be engaged with any one of the openings.

The chest buckle device is characterized in that: the first chest buckle connector including the engaging portion, the tongue, and the protruding portion is integrally formed.

The chest buckle device is characterized in that: the tongue has an end, and there is a narrow channel in the slot, when the protrusion is engaged with any of the openings, the end is engaged with the channel.

According to an embodiment of the present invention, there is provided a chest buckle device used in a child safety belt, wherein the chest buckle device used in a child safety belt includes: a first chest buckle connector having an engaging portion and a second chest buckle connector having an engagement structure, the first chest buckle connector and the second chest buckle connector move along a displacement axis to lock each other, the engagement structure defining at least a first region and a second area, the first area and the second area are arranged on the displacement axis, and the engaging portion can be engaged with any one of the first area and the second area of the joint structure.

The chest buckle device is characterized in that: the first area and the second area include several openings, and the engaging portion can be engaged with any of the openings.

The chest buckle device is characterized in that: the engaging portion can be elastically deflected perpendicular to the displacement axis.

Description of drawings

FIG. 1 is a schematic diagram of a child safety belt provided by an embodiment of the present invention.

FIG. 2 is a partial enlarged view of the chest buckle device in the first assembled state.

FIG. 3 is a schematic diagram showing the chest buckle device in a disassembled state.

Fig. 4 is a cross-sectional view of the breast buckle device.

FIG. 5 is a schematic diagram of the chest buckle device in the second assembled state.

Detailed ways

FIG. 1 is a schematic diagram of a child safety belt 100 provided by an embodiment of the present invention. The child safety belt 100 can be installed on a child seat 102 , and the child seat 102 has a seating portion 104 and a backrest 106 . The child seat 102 may include a child safety seat installed in a vehicle for children to sit on. The child safety belt 100 may include waist belts 110A and 110B, a crotch belt 112 , first and second shoulder belts 114A, 114B, and a fastening buckle 116 connected to the crotch belt 112 . In one embodiment, the child safety belt 100 can be a three-point fixing device, which includes two fastening parts 120A, 120B, and the two fastening parts 120A, 120B can be engaged and locked with the buckle 116 . The child's right fastener 120A is attached to the child's right waist belt 110A and first shoulder strap 114A, while the child's left fastener 120B is attached to the child's left waist belt 110B and shoulder belt 114B. In one embodiment, the waist belt 110A and the shoulder strap 114A can be the same webbing wrapped around the buckle 120A, and the waist belt 110B and the shoulder strap 114B can be another webbing wrapped around the buckle 120B. Each fastening member 120A, 120B may include a tongue piece, and the tongue piece is used to engage with the buckle 116 . In addition, the child safety belt 100 may include a chest buckle device 130 which can position the shoulder straps 114A, 114B in the correct position.

In conjunction with FIG. 1 , FIG. 2 shows a partially enlarged view of the chest buckle device 130 , FIG. 3 shows a schematic view of the chest buckle device 130 in a disassembled state, and FIG. 4 shows a cross-sectional view of the chest buckle device 130 . The chest buckle device 130 may include first and second chest buckle connectors 132, 134, the first chest buckle connector 132 is connected to the first shoulder strap 114A, and the second chest buckle connector 134 is connected to the second shoulder strap 114B . It can be understood that the positions of the first and second chest buckle connectors 132 and 134 can be reversed to connect with the first and second shoulder straps 114A and 114B respectively. The first and second chest buckle connectors 132, 134 can be mutually engaged and locked at different positions, so as to set the desired width of the chest buckle device 130 (that is, a point on the first chest buckle connector 132 and the second chest buckle The lateral distance between the opposite point on the connector 134). Since the first chest buckle connector 132 and the second chest buckle connector 134 can be connected to each other at multiple positions, different distances between the first and second shoulder straps 114A, 114B can be set. The first and second chest buckle connectors 132, 134 are respectively provided with two grooves 136A, 136B, and the shoulder straps 114A, 114B are respectively passed through the two grooves 136A, 136B, and can be respectively vertically worn around the first , the second chest buckle connectors 132,134.

Referring to FIGS. 3 and 4 , the first chest buckle connector 132 may include an adjustment portion 140 having a groove and a tongue 146 extending from the groove. An end of the groove (ie, a portion adjacent to the groove 136A around which the shoulder strap 114A passes) can be defined by a sidewall 144 . The tongue 146 can include an elastic engaging portion 148 . The engaging portion 148 is connected to the tongue 146 and is adjacent to the end 146A of the tongue 146 (ie, the end away from the shoulder strap 114A). The engaging portion 148 can have a free end 148A. The free end 148A is located in the middle region of the tongue piece 146 and disposed between the side wall 144 and the end 146A of the tongue piece 146 . The free portion 148A of the engaging portion 148 is provided with a convex portion 149 . In this embodiment, the protruding portion 149 is circular, but it can also be in other shapes. The first chest buckle connector 132 including the adjusting portion 140 , the tongue piece 146 , the engaging portion 148 , and the convex portion 149 can be an integrally formed plastic body. The two grooves 136A can be formed on opposite sides of the adjusting portion 140 , and the shoulder strap 114A is wound around the adjusting portion 140 . Accordingly, the first chest buckle connector 132 is movable along the shoulder strap 114A for adjustment.

The second chest buckle connector 134 may include a slot 150 inside. The tongue 146 of the second buckle connector 132 can be inserted into the slot 150 along a displacement axis X. As shown in FIG. The second buckle connector 134 is provided with an engaging structure 152 . The engaging portion 148 can engage and lock with several different positions of the engaging structure 152 . The engaging structure 152 can extend from a side wall of the slot 150 and includes two openings 156 , 158 . The two openings 156 , 158 are distributed along the displacement axis X and communicate with the slot 150 . The two openings 156 , 158 can be circular in shape to match the shape of the protrusion 149 , but they can also be in other shapes. The two openings 156 , 158 communicate with each other along the direction of the displacement axis X, and an inner wall 160 is disposed between the two openings 156 , 158 . In other embodiments, the two openings 156 and 158 may not communicate with each other. The second chest buckle connector 134 including the engaging structure 152 may be a one-piece plastic body.

Referring to FIG. 1 to FIG. 5 , the operation steps of the chest buckle device 130 will be described later. After the child is fastened by the child safety belt 100 , the first and second chest buckle connectors 132 , 134 can be adjusted vertically to approximately align with the height of the child's armpit. Then, the tongue 146 of the first chest buckle connector 132 can be inserted into the slot 150 of the second chest buckle connector 134 along the displacement axis X until the protrusion 149 engages and locks with the opening 156 or 158, and the protrusion 149 The engaging with the opening 156 (or 158 ) is achieved by elastically deflecting the engaging portion 148 along a direction perpendicular to the displacement axis X. As shown in FIG. Therefore, the first chest buckle connector 132 and the second chest buckle connector 134 can move relative to each other along the displacement axis X to engage with each other at different first and second positions, wherein the first and second positions are along the The displacement axes X are distributed at intervals.

For example, if the size of the child is small, the tongue 146 can be inserted inwardly along the slot 150 until the protrusion 149 engages and locks in the opening 156 of the engaging structure 152, and the engaging structure 152 can abut against the side wall 144 , or near the side wall 144 . As shown in Figures 1 and 2, when the first and second chest buckle connectors 132, 134 are engaged with each other at the first position, the chest buckle device 130 is set so that the distance between the shoulder straps 114A, 114B can be maintained by a distance of one. The first distance D1. In this embodiment, the two openings 156 and 158 are connected laterally, and the inner wall 160 can keep the protrusion 149 engaged with the opening 156 and prevent the protrusion 149 from moving into the other opening 158 .

When the size of the child is larger, the protrusion 149 engages and locks with the opening 158 of the engaging structure 152 , so that the engaging structure 152 is farther away from the side wall 144 . As shown in FIG. 5, when the first and second chest buckle connectors 132, 134 are engaged with each other at the second position, the setting state of the chest buckle device 130 makes the distance between the shoulder straps 114A, 114B maintain a second distance. D2, the second distance D2 is greater than the first distance D1.

Referring to FIG. 4 , a narrow passage 162 can be formed at one end of the socket 150 , and the height of the passage 162 is smaller than that of the socket 150 . Regardless of whether the protrusion 149 is locked to the opening 156 or 158 , the length of the tongue 146 is such that the end 146A is always engaged with the channel 162 . Therefore, the first and second chest buckle connectors 132 and 134 can be engaged in at least two positions spaced apart from each other, that is, the end 146A is engaged with the engagement point of the channel 162 and the protrusion 149 is engaged with the engagement structure 152 The snapping point, so that the chest buckle device 130 can be locked firmly.

To release the chest buckle device 130, the convex portion 149 protruding from the opening 156 (or 158) can be pressed down, so that the convex portion 149 escapes from the opening 156 (or 158). After the chest buckle device 130 is released, then the first and second chest buckle connectors 132, 134 can be separated from each other, or can be adjusted to set a desired distance between the shoulder straps 114A, 114B.

It can be understood that the design of the present invention may also be changed. For example, in the foregoing embodiments, the engaging portion 148 engages with the engaging structure 152 or disengages from the engaging structure 152 through front and rear deflection. In other embodiments, the engaging portion can also be engaged with or disengaged from the engaging structure through vertical deflection up and down. In order to realize the vertical operation up and down, the position of the engaging part and the engaging structure can be installed in a vertical relationship, for example, the engaging part and the engaging structure are arranged above the first chest buckle connector 132 and the second chest buckle connector 134 and/or or below.

The child safety belt provided by the present invention has at least one advantage in that a chest buckle device 130 can be provided, and the distance between the shoulder straps 114A, 114B can be maintained at several different distances according to the size of the child.

The above description is based on multiple different embodiments of the present invention, wherein each feature can be implemented singly or in different combinations. Therefore, the disclosed embodiments of the present invention are specific examples to illustrate the principle of the present invention, and the present invention should not be limited to the disclosed embodiments. Furthermore, the foregoing descriptions and accompanying drawings are merely illustrative of the present invention and are not intended to limit it. Variations and combinations of other elements are possible without departing from the spirit and scope of the present invention.

[Description of main component symbols]

Child safety belt 100

Child seat 102 Riding part 104

Backrest 106 Belt 110A, 110B

Crotch belt 112 First and second shoulder belts 114A, 114B

Fastener 116 Fasteners 120A, 120B

Chest buckle device 130 First and second chest buckle connectors 132, 134

Groove 136A, 136B Adjustment part 140

Sidewall 144 Tongue 146

Terminal 146A Engagement part 148

Free end 148A Convex part 149

Slot 150 Engagement Structure 152

Opening 156, 158 Channel 162

Claims (17)

1. A child safety belt, characterized in that: comprising: a first shoulder strap; a second shoulder strap; A first breast buckle connector, connected to the first shoulder strap and has a locking part, a first groove and a tongue piece, the first shoulder strap passes through the first groove, and the locking part has a a free end having a protrusion; and A second breast buckle connector, connected to the second shoulder strap and has an engaging structure, a second groove and a slot, the second shoulder strap passes through the second groove, the engaging structure includes at least two and the two openings respectively correspond to a first position and a second position, wherein, the tongue piece can be inserted into the slot until the convex part can be engaged with any opening, so that the engaging part and the engaging part can be engaged with each other. The engaging structure is locked, whereby the engaging portion can be engaged and locked in the engaging structure at the first position or the second position. When engaging and locking at the first position, the first shoulder strap The distance between the first shoulder strap and the second shoulder strap is maintained at a first distance, and when engaged and locked at the second position, the distance between the first shoulder strap and the second shoulder strap is maintained at a second distance, and the second The distance is greater than the first distance. 2 . The safety belt for children as claimed in claim 1 , wherein the engaging portion is elastic, and the engaging of the convex portion with any opening is realized by the elastic deflection of the engaging portion. 3 . 3. The child safety belt according to claim 1, wherein the two openings are connected to each other transversely. 4 . The child safety belt as claimed in claim 1 , wherein the engaging portion is connected to the tongue and is close to an end of the tongue, and the free end is located at a middle area of the tongue. 5 . The child safety belt as claimed in claim 1 , wherein the first breast buckle connector including the engaging portion, the tongue piece and the protruding portion is integrally formed. 6 . 6. The safety belt for children as claimed in claim 1, wherein the tongue has an end, and the slot has a narrow channel, and when the protrusion is engaged with any opening, the end engages on that channel. 7. A child safety seat comprising the child safety belt according to claim 1. 8. A chest buckle device used in a child safety belt, the child safety belt includes first and second shoulder straps, and the first and second shoulder straps are respectively passed around the chest buckle device, characterized in that it includes: A first breast buckle connector has an engaging portion, a first groove and a tongue, the first groove provides the first shoulder strap to pass through, the engaging portion is connected to the tongue and is close to the tongue an end of the tongue, and the engaging portion has a free end located in an intermediate region of the tongue; and A second breast buckle connector has an engaging structure, a second groove and a slot, the second groove provides the passage of the second shoulder strap, the tongue can be inserted into the slot until the engagement The free end of the engaging portion can be engaged with the engaging structure, wherein the free end of the engaging portion can be engaged and locked with the engaging structure at one of the first and second positions. 9. The chest buckle device as claimed in claim 8, wherein the first chest buckle connector and the second chest buckle connector move relatively along a displacement axis to engage with each other, and the first chest buckle connector , The second positions are spaced apart along the displacement axis. 10. The chest buckle device according to claim 8, wherein the first chest buckle connector is movable along a displacement axis so as to be inserted into the slot, and the first position and the second position are along the Distributed along the displacement axis of the first chest buckle connector. 11. The breast buckle device according to claim 8, wherein the engaging structure includes at least two openings, the two openings respectively correspond to the first position and the second position, and the engaging portion has a protrusion The convex part can be engaged with any opening. 12. The chest buckle device according to claim 11, wherein the two openings are connected to each other transversely. 13 . The chest buckle device as claimed in claim 11 , wherein the first chest buckle connector including the engaging portion, the tongue, and the protruding portion is integrally formed. 14 . 14. The breast buckle device as claimed in claim 11, characterized in that: there is a narrow passage in the slot, when the protrusion is engaged with any of the openings, the end of the tongue is engaged with the opening aisle. 15 . The child safety belt as claimed in claim 8 , wherein the engaging portion is elastic, and the engagement between the free end and the engaging structure is realized by elastic deflection of the engaging portion. 15 . 16. A chest buckle device used in a child safety belt, the child safety belt includes first and second shoulder straps, and the first and second shoulder straps are respectively passed around the chest buckle device, characterized in that it includes: A first breast buckle connector has an elastic engaging portion and a first groove, and the first groove allows the first shoulder strap to pass through; and A second chest buckle connector has an engaging structure and a second groove, the second groove provides the passage of the second shoulder strap, the first chest buckle connector and the second chest buckle connector along a The displacement axis moves so as to lock each other, the engaging structure defines at least a first area and a second area, the first area and the second area are arranged on the displacement axis, and the engaging portion can be moved along a direction perpendicular to the displacement The direction of the axis is elastically deflected to selectively engage with one of the first region and the second region of the engaging structure. 17. The breast buckle device as claimed in claim 16, wherein the first area and the second area include several openings, and the engaging portion can be engaged with any of the openings.