JP6676320B2 - child seat - Google Patents

Description

  The present invention relates to a child seat having a pair of shoulder belts.

  Conventionally, as a child seat capable of adjusting the height position of a shoulder belt according to the growth of a child, for example, JP-A-2012-116465 (Patent Document 1) and JP-A-2013-141834 (Patent Document) There is 2).

  Patent Literature 1 discloses that a back plate having an insertion hole can be moved up and down with respect to a back portion of an infant accommodation portion having a harness height adjustment opening. It is disclosed that the back plate has a flat plate shape and is provided on the back of the infant storage unit.

  Patent Document 2 discloses that a sliding member having a through hole is provided so as to be vertically movable with respect to a seat portion having a long hole, and the height of the shoulder belt can be adjusted by moving the sliding member up and down. Is disclosed. It is disclosed that a seat part cover member is removably mounted on the seat part, and a sliding member is disposed through an opening of the seat part cover member.

JP 2012-116465 A JP 2013-141834 A

  As described above, in the child seat of Patent Literature 1, a step is formed between the back plate and the back portion, so that the infant has a poor riding comfort. The child seat of Patent Document 2 also has a step between the sliding member and the seat portion. However, since the lower end of the sliding member is disposed in the opening of the cover member for the seat portion to cover the step, the infant has a comfortable ride. Good. However, in order to cover a step between the sliding member and the seat portion, it is necessary to separately provide a cover member for the seat portion.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a child seat having a simple structure and good ride comfort.

  For this purpose, the child seat according to the present invention includes a seat body having a seat surface portion and a backrest portion, a slide member that overlaps on the front surface of the backrest portion and is slidable in a vertical direction, and the height of the slide member is set at a predetermined position. And a pair of shoulder belts arranged so as to penetrate the slide member and the backrest.The slide member has an upper portion having a pair of shoulder belt through holes for penetrating the pair of shoulder belts. And a lower portion having a pair of downwardly projecting rod-like portions extending downward from both end edges in the width direction of the upper portion.A space is formed between the pair of downwardly projecting rod-like portions, and a front surface of the backrest portion is formed. The backrest has a long hole in the vertical direction that allows the pair of shoulder belts that have passed through the pair of shoulder belt through holes to penetrate to the back, and is further slid. Wood is stretched on a pair of downward projecting rod-like portion, a cover member, such a thin material that covers the front of the backrest.

  Preferably, the cover member covers the entire surface of the slide member.

  Preferably, the slide member includes a pair of side walls for protecting the child's head.

  Preferably, the lock mechanism has a plurality of receiving holes provided at intervals in the vertical direction along a pair of long holes of the backrest portion, and a pin member provided in the slide member and penetrating the receiving hole. When the pin member penetrates through the receiving hole, the movement of the slide member with respect to the backrest is restricted.

  Preferably, an operation unit movable vertically is provided above the slide member, and the pin member penetrates the receiving hole by moving the operation unit downward.

  According to the present invention, it is possible to provide a child seat having a simple structure and good ride comfort.

It is a perspective view of the child seat concerning this Embodiment. It is a perspective view of the child seat concerning this Embodiment. It is a front view which extracts and shows the backrest part and the slide member of the child seat which concerns on this Embodiment. It is a rear view which takes out and shows the backrest part and the slide member of the child seat which concerns on this Embodiment. It is a perspective view which takes out and shows a backrest part. It is a front view which takes out and shows a slide member. It is a rear perspective view of a slide member. It is a side view of a slide member. It is a front view of the cover member of a slide member. It is a rear view of the cover member of a slide member. FIG. 9 is a vertical cross-sectional view taken along line XI-XI of FIG. 8, and is a vertical cross-sectional view showing a locked state of a slide member. FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 11, showing a locked state of the slide member. FIG. 12 is a longitudinal sectional view corresponding to FIG. 11, showing a locked state of the backrest and the slide member. FIG. 9 is a vertical cross-sectional view taken along line XI-XI in FIG. 8, and is a vertical cross-sectional view showing an unlocked state of a slide member. FIG. 15 is a cross-sectional view taken along line XV-XV of FIG. 14, and is a cross-sectional view showing an unlocked state of a slide member. FIG. 15 is a longitudinal sectional view corresponding to FIG. 14, showing a state in which the backrest and the slide member are unlocked.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding portions have the same reference characters allotted, and description thereof will not be repeated.

  A child seat 1 according to an embodiment of the present invention will be described with reference to FIG. In the description of the child seat 1, the front-back direction corresponds to the front-rear direction of the child seat 1, and the left-right direction corresponds to the left-right direction viewed from the front of the child seat 1.

  The child seat 1 according to the present embodiment is a device that is disposed on a seat of an automobile and allows a child such as an infant or a child to ride safely. The child seat 1 includes a base body 10 and a seat body 11. The base body 10 is mounted on a seat of a passenger car, and supports the seat body 11 from below. The seat body 11 is mounted on the upper side of the base body 10 and is rotatably supported by the base body 10.

  A child sits on the seat body 11. For this reason, the seat body 11 has a seat surface portion 2 that supports the buttocks of the child and a backrest portion 3 that stands up from behind the seat surface portion 2 and supports the back of the child. Further, a covering member 20 for the seat surface portion 2 is detachably mounted on the seat surface portion 2. A covering member 30 for the backrest 3 is detachably attached to the backrest 3. These covering members 20 and 30 are formed of a soft cloth member, for example, a cushion material. Note that the covering members 20 and 30 are shown only in FIG. 1 and are omitted in other drawings.

  On the backrest 3, a slide member 4 that overlaps on the front surface of the backrest 3 and is slidable in the vertical direction is disposed. The slide member 4 can be fixed at a predetermined position by a lock mechanism. Thereby, the child seat 1 according to the present embodiment can easily adjust the height of the shoulder belt 12, which will be described later, according to the growth of the child. As shown in FIG. 1, the entire surface of the slide member 4 may be covered with a cover member 70. The cover member 70 will be described later. Note that the cover member 70 is also shown only in FIGS. 1, 9, and 10, and is omitted in other drawings.

  The child seat 1 is provided with a plurality of belts for restraining a child's body. The belt provided on the backrest 3 includes a pair of shoulder belts 12 for restraining both shoulders of the child. The shoulder belt 12 is arranged so as to penetrate the slide member 4 and the backrest 3. The shoulder belt 12 is mounted on the backrest 3 and is not limited to being fixed to the backrest 3. Specifically, the shoulder belt 12 includes a state where the shoulder belt 12 is looped from the rear to the front of the child seat 1.

  Further, the belt provided on the seat surface portion 2 includes, for example, a crotch belt 13 extending between both thighs of a child seated on the seat body 11, and a waist belt 14 for restraining a child's waist. These belts 12, 13, and 14 are connected near a child's abdomen by a connecting member 15 provided at the tip of the crotch belt 13. In addition, the belts 12, 13, and 14 and the connector 15 are also shown only in FIG. 1 and are omitted in other drawings.

  Prior to the detailed description of the backrest 3 and the slide member 4, the relationship between the backrest 3 and the slide member 4 and the shoulder belt 12 will be described. FIG. 2 is a perspective view of the child seat 1 according to the present embodiment. FIG. 3 is a front view showing the backrest 3 and the slide member 4 of the child seat 1 according to the present embodiment, and FIG. 3 (A) shows that the slide member 4 is fixed at the lowest height. FIG. 3B is a front view showing a state in which the slide member 4 is fixed at the highest height. FIG. 4 is a rear view showing the backrest 3 and the slide member 4 of the child seat 1 according to the present embodiment.

  2 to 4, the slide member 4 is formed with a pair of shoulder belt through-holes 43 through which the pair of shoulder belts 12 penetrate, and the position of the backrest 3 facing the shoulder belt through-holes 43. Is provided with an elongated hole 32 extending vertically with respect to the backrest 3 of the slide member 4. Thus, the shoulder belt 12 that has passed through the shoulder belt through hole 43 of the slide member 4 further passes through the elongated hole 32. A pair of shoulder belt through holes 63 are formed on the rear surface of the slide member 4 shown in FIG. In this case, the shoulder belt 12 that has passed through the shoulder belt through hole 43 and the elongated hole 32 further passes through the pair of shoulder belt through holes 63.

  With such a structure, the child seat 1 according to the present embodiment slides the slide member 4 with respect to the backrest 3 so that the height of the slide member 4 falls within the range shown in FIGS. The support position of the shoulder belt 12, that is, the height position of the shoulder belt through-hole 43 can be changed by changing the height position. Thereby, the child seat 1 of the present embodiment can easily adjust the height position of the shoulder belt 12 according to the growth of the child.

  The backrest 3 will be described with reference to FIG. FIG. 5 is a perspective view showing only the backrest 3.

  The backrest portion 3 is provided with a vertically elongated slot 32 which allows the pair of shoulder belts 12 to penetrate to the back. The long holes 32 are provided in pairs at intervals. Between the pair of elongated holes 32, a rail portion 31 protruding to the front surface and extending vertically is formed. The slide member 4 is arranged on the rail portion 31, and the slide member 4 is attached so as to be slidable in the vertical direction along the rail portion 31.

  The long hole 32 penetrates through the backrest 3 in the front-rear direction, and is surrounded by an upright wall 33 surrounding all sides. The standing wall 33 is provided with a plurality of receiving holes 34. The receiving holes 34 are through holes, for example, five are provided. In this case, the slide member 4 can be adjusted to five heights. The pin member 62 of the slide member 4 passes through the receiving hole 34. The pin member 62 will be described later. The receiving hole 34 is not limited to a hole, and may be a concave portion or a notch as long as it can engage with the pin member 62.

  The slide member 4 will be described with reference to FIG. FIG. 6 is a front view showing the slide member 4 taken out.

  The slide member 4 includes an upper part 41 and a lower part 42. The upper portion 41 of the slide member 4 has a pair of shoulder belt through holes 43 through which the pair of shoulder belts 12 penetrate. The pair of shoulder belt through holes 43 is disposed near the lower end of the upper portion 41. The upper portion 41 may include a back portion 44 and a pair of side wall portions 45 attached to both left and right ends of the back portion 44 to protect the child's temporal region. A head support portion 441 for supporting the back of the child is disposed in the center of the back portion 44, and a plurality of through holes are provided. The side wall portions 45 protrude forward from both ends in the width direction of the upper portion 41. The slide member 4 is provided with the side wall portion 45, so that it not only supports the shoulder belt 12, but also functions as a headrest.

  The lower portion 42 of the slide member 4 has a pair of downwardly protruding rod-like portions 46 that protrude downward from both left and right edges of the upper portion 41 and extend downward. A space is formed between the pair of downwardly projecting rod-shaped portions 46 of the lower portion 42. Therefore, as shown in FIGS. 2 and 3, when the slide member 4 overlaps the front surface of the backrest 3, the front surface of the backrest 3, that is, the pair of elongated holes 32 of the backrest 3 is exposed. As shown in FIG. 3B, the length of the downwardly projecting rod-like portion 46 is such that the downwardly projecting rod-like portion 46 has a pair of long holes 32 even when the slide member 4 is disposed at the highest position. It has a length that can be covered.

  The cover member 70 of the slide member 4 will be described with reference to FIGS. FIG. 9 is a front view of the cover member 70 of the slide member 4, and FIG. 10 is a rear view of the cover member 70 of the slide member 4. In FIG. 9, the upper part 41 and the lower part 42 of the slide member 4 are indicated by broken lines.

  The slide member 4 includes a cover member 70 made of a thin material that is stretched over the downwardly projecting bar-shaped portion 46 and covers the front surface of the backrest 3. The cover member 70 may cover the entire front surface of the slide member 4. In this case, the cover member 70 includes a bridging portion 71 that covers the front surface of the lower portion 42 of the slide member 4. The bridging portion 71 is a thin material, specifically, a hammock material. The bridging portion 71 is not limited to a material as long as it is a thin material, but may be a member having air permeability, for example, a mesh cloth, for supporting the back of the child.

  The cover member 70 may include a support pad 72 that covers the front surface of the upper portion 41 of the slide member 4. The support pad 72 is provided, for example, with a cushion material. In this case, the support pad 72 is sewn with a seam 73 above the bridging portion 71. Further, a cutout 74 is provided in a portion where the shoulder belt through hole 43 is located. Note that the covering member that covers the side wall portion 45 is provided separately from the cover member 70.

  As shown in FIG. 10, the lower end 711 of the bridging portion 71 is folded back and sewn, and a pair of insertion portions 712 is provided at both left and right ends of the bridging portion 71. The lower end of the downwardly projecting rod portion 46 is inserted into the insertion portion 712. In this case, the lateral width L1 of the downward protruding rod-shaped portion 46 and the bridging portion 71 is substantially the same. As a result, the bridging portion 71 is pulled in the left-right direction by the downwardly protruding bar-shaped portion 46 and becomes taut, and tension is applied to the bridging portion 71. With such a structure, the child sitting on the child seat 1 does not feel the step of the pair of long holes 32 arranged behind the bridging portion 71, and the ride comfort is good. Further, unlike the conventional child seat, the entire slide member 4 does not need to be formed of a thick member such as a plate material or a cushion, so that the weight of the slide member 4 can be reduced, and the weight of the child seat 1 can be reduced. be able to.

  Further, as shown in FIG. 1, since the slide member 4 is formed of a thin material, a step between the slide member 4 and the covering member 30 (backrest 3) of the backrest 3 is hardly formed. Even if a step is formed, a child sitting on the child seat 1 does not feel the step because the slide member 4 is a thin material. In the conventional child seat, it is necessary to separately provide a cushion or the like for covering a step formed by the backrest 3 and the slide member 4. However, since the child seat 1 according to the present embodiment does not have a step in the first place, there is no need to provide a separate cushion unlike the related art, and it is possible to improve the riding comfort of a child sitting on the child seat 1 with a simple structure. It is.

  Referring to FIGS. 7 and 8, the slide member 4 has a lock mechanism behind the slide member 4. The lock mechanism switches the slide member 4 and the backrest 3 between a locked state and an unlocked state, and fixes the height of the slide member 4 at a predetermined position. First, the moving section 50 attached to the rear of the slide member 4 and slid in the up-down direction will be described. FIG. 7 is a rear perspective view of the slide member 4, and FIG. 8 is a side view of the slide member 4.

  The moving unit 50 includes an operating unit 51 disposed above the slide member 4, a pair of springs 52, a pair of spring holding units 53 that hold the pair of springs 52, a pair of flat plates 54, and a pair of flat plates. And a pair of inclined holes 55 formed in the portion 54. The operation portion 51, the spring holding portion 53, and the pair of flat plate portions 54 are integrally formed. Thus, when the operation unit 51 is pressed, the operation unit 51, the spring holding unit 53, and the pair of flat plate units 54 move downward. By moving the operation unit 51 downward, the pin member 62 penetrates the receiving hole 34 of the elongated hole 32. Since the operation unit 51 is formed in the front, the operation can be performed from the front of the child seat 1 and the operation is easy.

  The spring 52 is disposed in the spring holding portion 53, and the upper end of the spring 52 contacts the contact portion 442 of the back portion 44, and the lower end of the spring 52 contacts the contact portion 531 of the spring holding portion 53. In contact. When the operating portion 51 is pressed, the spring 52 extends in the up-down direction in accordance with the downward movement of the contact portion 531 of the spring holding portion 53. When the hand is released from the operation unit 51, the operation unit 51 returns to the original position by the urging force of the spring 52. That is, the moving unit 50 is urged upward by the spring 52.

  As shown in FIG. 7, the pair of flat plates 54 is provided at the lower end of the moving unit 50 so as to protrude inward from the spring holding unit 53. The pair of flat plate portions 54 are provided with a pair of inclined holes 55. The pair of inclined holes 55 are inclined in a C-shape in plan view. In other words, the portions of the pair of inclined holes 55 located on the left and right end portions are located below the center portion. 12 and 15, an L-shaped pin member 62 shown in plan view penetrates the pair of inclined holes 55.

  The support unit 60 is provided on the back surface of the moving unit 50. The support part 60 is a part that holds the slide member 4 on the backrest part 3 and does not move in the vertical direction due to the movement of the moving part 50. The support part 60 includes a storage part 61 protruding rearward of the slide member 4, a pin member 62 stored in the storage part 61, a flat part 64, and a pair of shoulder belt through holes 63 provided in the flat part 64. And

  As shown in FIGS. 11 to 13, the pin member 62 is L-shaped in plan view, and includes a short piece 621 and a long piece 622. The tip of the short piece 621 is inserted into the inclined hole 55 of the moving part 50, and the tip of the long piece 622 can penetrate through the receiving hole 34 of the long hole 32. The pin member 62 does not move in the up-down direction but moves in the left-right direction due to the up-down movement caused by the pressing of the operation unit 51. That is, the pin member 62 moves in conjunction with the operation of the operation unit 51.

  As described above, the shoulder belt through hole 63 penetrates through the shoulder belt through hole 43 and the elongated hole 32. As shown in FIG. 4, the storage section 61 sandwiches the rail section 31 of the backrest 3. Thereby, the slide member 4 is held so as to be slidable up and down with respect to the backrest 3.

  Next, the structure of the lock mechanism will be described with reference to FIGS. FIG. 11 is a longitudinal sectional view taken along line XI-XI in FIG. 8, and is a longitudinal sectional view showing a locked state of the slide member 4. FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG. 11, and is a diagram illustrating a locked state of the slide member 4. FIG. 13 is a longitudinal sectional view corresponding to FIG. 11, showing a locked state of the backrest 3 and the slide member 4. FIG. 14 is a vertical cross-sectional view taken along line XI-XI in FIG. 8, and is a vertical cross-sectional view showing the unlocked state of the slide member 4. FIG. 15 is a cross-sectional view taken along the line XV-XV in FIG. 14, and is a diagram illustrating a state where the slide member 4 is unlocked. FIG. 16 is a vertical cross-sectional view corresponding to FIG. 14, showing a state in which the backrest 3 and the slide member 4 are unlocked. 13 and 16, the bridging portion 71 is indicated by a broken line.

  As shown in FIGS. 14 to 16, when the operation unit 51 is pressed downward by hand, the moving unit 50 including the spring holding unit 53 and the flat plate unit 54 moves downward, and the inclined hole 55 also moves downward. The short piece 621 of the pin member 62 penetrating the inclined hole 55 moves inward along the inclination of the inclined hole 55, and the long piece 622 of the pin member 62 is pulled out of the receiving hole 34. That is, as shown in FIG. 16, the pin member 62 is released from the engagement of the elongated hole 32 with the receiving hole 34. Thereby, the locked state of the slide member 4 is released.

  When the operator releases the operating unit 51, the operating unit 51 returns to the position shown in FIGS. 11 to 13 by the urging force of the spring 52 contracted by the pressing of the operating unit 51. Thereby, the short piece 621 of the pin member 62 moves outward along the inclination of the inclined hole 55, and the long piece 622 of the pin member 62 penetrates the receiving hole 34. Thereby, the movement of the slide member 4 with respect to the backrest 3 is restricted. That is, the slide member 4 is in the locked state. The state where the slide member 4 is locked is a state where the operation unit 51 is not operated.

  The operation of adjusting the height of the slide member 4 according to the growth of the child is as follows.

  First, the operation unit 51 is pressed by hand, and the pin members 62 of the slide member 4 are pulled out from the receiving holes 34 of the elongated holes 32, respectively. In this state, the slide member 4 is moved to a desired height, and the hand is released from the operation unit 51. The operating portion 51 returns to the original position by the urging force of the spring 52, and the pair of pin members 62 respectively penetrate through the receiving holes 34 of the elongated holes 32, and the movement of the slide member 4 is prohibited. Thus, in accordance with the growth of the child, the height of the slide member 4 at a predetermined position from the position of the lowest height in FIG. 3 (A) to the position of the highest height in FIG. 3 (B). It is possible to adjust the length.

  In the present embodiment, the slide member 4 is configured as a headrest that receives the head of a child sitting on the child seat 1. Thereby, the height position of the shoulder belt 12 can be adjusted according to the height position of the child's head.

  In the above embodiment, the cover member 70 covers the entire surface of the slide member 4, and the support pad 72 is sewn on the upper part of the cover member 70. However, the cover member 70 is not limited to this shape as long as it is formed of a thin material that is stretched at least over the downwardly projecting rod-shaped portion 46 and covers the front surface of the backrest 3.

  Further, in the above embodiment, the rear portion 44 and the side wall portion 45 are arranged in the upper portion 41 of the slide member 4, but at least the shoulder belt through hole 43 is formed in the upper portion 41. Good.

  As described above, the embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range as the present invention or within an equivalent range.

  DESCRIPTION OF SYMBOLS 1 Child seat, 2 Seat surface part, 3 Backrest part, 4 Slide member, 10 Base body, 11 Seat body, 12 Shoulder belt, 13 Crotch belt, 14 Waist belt, 15 Connecting part, 20, 30 Covering member, 31 Rail part, 32 Elongate hole, 33 standing wall, 34 receiving hole, 41 upper part, 42 lower part, 43 shoulder belt through hole, 44 back part, 45 side wall part, 46 inwardly protruding rod-shaped part, 50 moving part, 51 operating part, 52 spring, 53 spring holding portion, 54 flat plate portion, 55 inclined hole, 60 support portion, 61 storage portion, 62 pin member, 63 shoulder belt through hole, 64 flat portion, 70 cover member, 71 extending portion, 72 support pad, 73 sewing Eye, 74 cut, 441 head support, 442 abutment, 531 abutment, 621 short piece, 622 long piece, 711 below End, 712 insert.

Claims (5)

A seat body having a seat surface portion and a backrest portion,
A slide member that overlaps on the front surface of the backrest and is slidable in the vertical direction;
A lock mechanism for fixing the height of the slide member at a predetermined position,
A pair of shoulder belts arranged to penetrate the slide member and the backrest,
An upper portion having a pair of shoulder belt through holes through which the pair of shoulder belts pass; Including
A space is formed between the pair of downwardly projecting rod-shaped portions, exposing a front surface of the backrest portion,
The backrest portion has an elongated hole in the up-down direction that allows the pair of shoulder belts that have passed through the pair of shoulder belt through holes to penetrate to the back, and further,
The slide member includes a pair of stretched downwardly projecting rod-like portion provided with a Ru cover member name from thin material that covers the front of the backrest, the child seat.   The child seat according to claim 1, wherein the cover member covers the entire surface of the slide member.   The child seat according to claim 1, wherein the slide member includes a pair of side wall portions for protecting a child's head. The lock mechanism,
Along the pair of elongated holes of the backrest, a plurality of receiving holes provided at intervals in the vertical direction,
A pin member provided on the slide member and penetrating the receiving hole,
The child seat according to any one of claims 1 to 3, wherein movement of the slide member with respect to the backrest portion is restricted by the pin member penetrating through the receiving hole. 5. The child seat according to claim 4, wherein an operation unit that is movable in a vertical direction is provided above the slide member, and the pin member is pulled out of the receiving hole by moving the operation unit downward.

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