Seat with safety belt and belt holder

Abstract

A seat with a seatbelt according to the present invention is provided with a seat main body on which a seated person is seated, a waistband for fixing the waist of the seated person seated in the seat main body to the seat main body, and a waistband holding part for holding the waistband, the seat main body having a first waistband connecting part, and a waistband disposed at a position closer to one side than a central portion in the width direction in the seat main body, the waistband having: a first waistband main body formed in a band shape so as to have a first base end portion on one side in the length direction, and a second waistband main body formed in a band shape so as to have a second base end portion on the other side in the length direction; and a first latch attached to the first belt main body so as to be separated from the first base end in the longitudinal direction, the first base end of the first belt main body being connected to the first belt connection part, the belt holding part having a first belt holding part in the longitudinal direction of the belt, and a second belt holding part having a second belt holding part in the longitudinal direction of the belt. And a first belt holding portion that holds the first belt body between the first base end portion and the first latch, the seat body having a first biasing portion that biases a base portion of the first belt holding portion disposed on the first base end portion side toward one side in the width direction of the seat body.

Description

Technical Field

[0001] The present invention relates to a seat with a safety belt having a waist belt for fixing a body on a seat, and a waist belt holder for holding the waist belt. Background Art

[0002] Conventionally, as a seat belt with a lap belt, a child seat for use arranged on a seat of a vehicle is known as described in Patent Document 1. The child seat comprises: a child seat body including a seat portion for a child to sit on; a child safety belt mounted on the child seat body; and a cover member detachably mounted on the seat portion of the child seat body. The child safety belt comprises: a first belt member that functions as a crotch belt and is equipped with a buckle; and a pair of second belt members that functions as a shoulder belt and a lap belt and is provided with tongues and is separated in the width direction.

[0003] With the child seat structured as described above, the pair of second belt members are arranged to press the child's shoulders and waist, and the child safety belt can be used to secure the child's body to the seat portion by inserting the tongue into the buckle.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2015-189298

[0007] SUMMARY OF THE INVENTION

[0008] Technical problem that the invention aims to solve

[0009] In the child seat described in Patent Document 1, when the child is not seated in the child seat body, the portion of the second belt member that functions as a lap belt falls inward in the width direction and is placed on the seat portion. In such a state, when the child is to be seated, the child safety belt (lap belt) needs to be extended outward in the width direction and away from the seat portion, which requires time and effort to seat the child.

[0010] The above technical problem is not limited to child seats arranged on vehicle seats, but is also a technical problem that may occur in seats with safety belts other than child seats, for example, when a child is seated in a seat of a baby car. Summary of the invention

[0011] Therefore, an object of the present invention is to provide a seat with a safety belt and a lap belt holder that can save the trouble of removing the lap belt when sitting.

[0012] Solutions for solving technical problems

[0013] The seat with a safety belt of the present invention is configured to include: a seat body for a seated person to sit on, a waist belt for fixing the waist of the seated person sitting in the seat body to the seat body, and a waist belt holding portion for holding the waist belt, wherein the seat body has a first waist belt connecting portion, and the first waist belt connecting portion is arranged at a position closer to one side than the central portion in the width direction of the seat body, and the waist belt has: a first waist belt body formed in a belt shape in a manner of having a first base end portion on one side in the length direction; a first retaining piece installed on the first waist belt body in a manner of being separated from the first base end portion in the length direction, the first base end portion of the first waist belt body being connected to the first waist belt connecting portion, the waist belt holding portion having a first waist belt holding portion in the length direction of the waist belt, and the first waist belt holding portion holding the first waist belt body between the first base end portion and the first retaining piece, and the seat body having a first force applying portion, and the first force applying portion applies a root portion of the first waist belt holding portion arranged on the first base end side to one side in the width direction of the seat body.

[0014] Furthermore, the lap belt holding portion may be configured to be attachable to and detachable from the seat body and the lap belt.

[0015] In addition, it can also be configured that the seat body comprises: a seat portion constituting an outer shell of the seat body; and a cushion portion arranged inside the seat portion, the seat portion having the belt connecting portion, the first base end portion of the first belt body being connected to the first belt connecting portion, the cushion portion having the first force applying portion, and the first force applying portion being configured to abut against the root portion from the other side in the width direction of the seat body.

[0016] In addition, it can also be constructed as follows: the waist belt has: a second waist belt main body formed in a belt shape in a manner having a second base end on one side in the length direction; a second fixing piece installed on the second waist belt main body in a manner separated in the length direction relative to the second base end; the seat main body has a second waist belt connecting portion, and the second waist belt connecting portion is arranged at a position closer to the other side than the central portion in the width direction of the seat main body, the second base end of the second waist belt main body is connected to the second waist belt connecting portion, the waist belt holding portion has a second waist belt holding portion in the length direction of the waist belt, and the second waist belt holding portion holds the second waist belt main body between the second base end and the second fixing piece, and the seat main body has a second force applying portion, and the second force applying portion applies a root of the second waist belt holding portion arranged on the second base end side toward the other side of the width direction of the seat main body.

[0017] The lap belt holder of the present invention is constructed to be installable on a seat with a safety belt, the seat with a safety belt comprising: a seat body for a seated person to sit on, a lap belt for fixing the waist of the seated person sitting in the seat body to the seat body, the seat body comprising a first lap belt connecting portion and a second lap belt connecting portion arranged separately in the width direction of the seat body, the lap belt comprising: a first lap belt body formed in a belt shape in a manner having a first base end portion on one side in the length direction; a first locking piece installed on the first lap belt body in a manner separated in the length direction relative to the first base end portion; a second lap belt body formed in a belt shape in a manner having a second base end portion on one side in the length direction; a first locking piece installed on the first lap belt body in a manner separated in the length direction relative to the first base end portion The first base end portion of the first belt body is connected to the first belt connecting portion, and the second base end portion of the second belt body is connected to the second belt connecting portion. The belt retaining component comprises: a first belt retaining portion, which retains the first belt body between the first base end portion and the first retaining portion in the length direction of the belt; a second belt retaining portion, which retains the second belt body between the second base end portion and the second retaining portion in the length direction of the belt; and a connecting portion that connects the first belt retaining portion and the second belt retaining portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a figure which shows the seat with a safety belt which is one embodiment of this invention.

[0019] Figure 2 It is a figure which shows the seat part of the seat with a safety belt.

[0020] Figure 3 1 is a top view of the lap belt retainer of the seat with a safety belt.

[0021] Figure 4 It is a bottom view of the waist belt holder.

[0022] Figure 5 2 is a diagram showing a state in which the seat with a safety belt is used.

[0023] Figure 6 The figure shows a state where a seat occupant is seated in the seat with a seat belt.

[0024] Figure 7 Yes means Figure 5 A cross-sectional view of the state of the waist belt and the waist belt retainer.

[0025] Figure 8 It is a diagram showing a seat with a safety belt according to another embodiment of the present invention.

[0026] Fig. 9 Yes means Figure 8 A cross-sectional view of the state of the waist belt and the waist belt retainer. DETAILED DESCRIPTION

[0027] Reference Figures 1 to 7 A seat belt 1 and a lap belt holder 6 mounted on the seat belt 1 according to an embodiment of the present invention will be described. For convenience of description, the up-down direction, the front-back direction, and the width direction are described based on the directions shown in the figure, but these directions do not limit the directions of the seat belt 1 or the lap belt holder 6 in the use state.

[0028] like Figure 1 As shown, the seat 1 with a safety belt has: a seat for a seated person C (such as a child) (refer to Figure 6 ) seat body 2; a safety belt 5 connected to the seat body 2 and fixing the seated person C to the seat body 2; and a lap belt holder 6 that can be installed and removed relative to the seat body 2 and the safety belt 5. The seat 1 with a safety belt of this embodiment is a child seat that is arranged on a seat of a vehicle such as a car for use. A child seat is a device for allowing children (infants, infants, children and other young people) to sit appropriately and safely in a vehicle, wherein the vehicle includes a seat designed for adults (such as a car seat) and a seat belt.

[0029] The seat body 2 includes: a seat portion 3 constituting the outer shell of the seat body 2; and a cushion portion 4 laid on the seat portion 3. In the present embodiment, the seat portion 3 is a portion made of a hard material, and the cushion portion 4 is a soft portion having elastic cushioning properties in the thickness direction. Such a seat body 2 accommodates a seated person C inside it (refer to Figure 6 ).

[0030] like Figure 1 As shown, the seat portion 3 is composed of a plurality of parts. Specifically, the seat portion 3 includes: a seat back 31 facing the back of the seated person C from the rear; a seat seat portion 32 facing the buttocks of the seated person C from the bottom; seat side portions 33 located on both sides (both ends in the width direction) of the seat back 31; and armrests 34 located on both sides of the seat seat portion 32 and extending upward from the seat seat portion 32. In the seat portion 3 of the present embodiment, the seat back 31 and the seat side portions 33 are integrally formed, and the seat seat portion 32 and the armrests 34 are integrally formed. In addition, the seat portion 3 has a seat connection portion (not shown) at the lower end of the seat back 31 and the rear end of the seat seat portion 32, and the seat back 31 and the seat seat portion 32 are integrated through the seat connection portion.

[0031] In addition, if Figure 1 and Figure 2As shown, the seat belt 5 is configured in such a way that the base end portion in the longitudinal direction is connected to the seat portion 3. That is, the seat portion 3 has: a first shoulder belt connection portion 35L and a second shoulder belt connection portion 35R connected to the base end portion in the longitudinal direction of a shoulder belt 53 described later; a first waist belt connection portion 36L and a second waist belt connection portion 36R connected to the base end portion in the longitudinal direction of a waist belt 52 described later (a first base end portion 523L and a second base end portion 523R); and a crotch belt connection portion 37 connected to the base end portion in the longitudinal direction of a crotch belt 51 described later. Figure 1 As shown, the first shoulder strap connection portion 35L and the second shoulder strap connection portion 35R are provided on the seat back 31. Figure 2 As shown, the first lap belt connection portion 36L, the second lap belt connection portion 36R, and the crotch belt connection portion 37 are provided on the seat seat portion 32 .

[0032] like Figure 1 As shown, the first shoulder belt connection portion 35L and the second shoulder belt connection portion 35R are provided separately in the width direction of the seat back 31. Specifically, the first shoulder belt connection portion 35L is provided on one side relative to the center portion in the width direction of the seat back 31, and the second shoulder belt connection portion 35R is provided on the other side relative to the center portion in the width direction of the seat back 31.

[0033] like Figure 2 As shown, the first lap belt connection portion 36L and the second lap belt connection portion 36R are provided separately in the width direction of the seat seat portion 32. Specifically, the first lap belt connection portion 36L is provided on one side relative to the center portion in the width direction of the seat seat portion 32, and the second lap belt connection portion 36R is provided on the other side relative to the center portion in the width direction of the seat seat portion 32.

[0034] like Figure 2 As shown, the crotch belt connection portion 37 is provided between the first waist belt connection portion 36L and the second waist belt connection portion 36R in the width direction of the seat seat portion 32. Specifically, the crotch belt connection portion 37 is provided in the center portion in the width direction of the seat seat portion 32 and is located forward of the first waist belt connection portion 36L and the second waist belt connection portion 36R.

[0035] like Figure 1 As shown, the cushion portion 4 is provided in a manner to cover the interior of the seat portion 3 (the front in the front-to-back direction and the inner side in the width direction) and is laid between the seat occupant C and the seat portion 3. In addition, the cushion portion 4 is provided to be attachable to and detachable from the seat portion 3. Such a cushion portion 4 has a cushioning property and can absorb force in the thickness direction. Specifically, the cushion portion 4 has: a cover portion 41 covering substantially the entire area of ​​the inner side of the seat portion 3; an inner buffer portion 42 provided between the cover portion 41 and the seat portion 3 (see Figure 7 ).

[0036] like Figure 1 As shown in FIG. 1 , the cover 41 is composed of a plurality of parts, and is configured to cover substantially the entire area of ​​the seat portion 3 by the plurality of parts. Such a cover 41 has a cushioning property and can absorb a force applied in the thickness direction. In addition, the cover 41 of this embodiment is configured to allow the seat belt 5 to pass through the joints 41a between the plurality of parts in the thickness direction (see FIG. 1 ). Figure 7 ) or a hole 41b formed in a manner penetrating the cover portion 41 in the thickness direction.

[0037] like Figure 7 As shown in the figure, the inner buffer portion 42 is a portion having a buffering property provided on the inner side (upper side) of the seat seat portion 32, and can absorb the force applied in the thickness direction (the force applied between the buttocks of the seated person C and the seat seat portion 32). The inner buffer portion 42 of this embodiment is made of a foamed resin, specifically, polyurethane foam. In addition, the inner buffer portion 42 of this embodiment is configured to allow the seat belt 5 to pass through the cutout portion 42a provided at both ends in the width direction and the hole portion (not shown) penetrating in the thickness direction. In addition, the cutout portion 42a and the hole portion provided in the inner buffer portion 42 are provided in a manner continuous with the seam 41a portion or the hole 41b of the cover portion 41 in the thickness direction.

[0038] like Figure 1 As shown in FIG. 1 , the seat cushion portion 4 has a plurality of belt passing portions 43 through which the safety belt 5 can pass in the thickness direction. The belt passing portions 43 are portions having cutouts or holes, and are configured to allow the safety belt 5 to pass through the cutouts or holes. That is, the belt passing portions 43 are formed by the cutout portions 42a or holes of the inner buffer portion 42 and the seams 41a of the cover portion 41 (see FIG. 1 ). Figure 7 ) or a hole formed therein, through which the safety belt 5 can be passed in the thickness direction. The belt passing portion 43 of the present embodiment includes: a crotch belt passing portion 431 through which the crotch belt 51 described later is passed; a pair of shoulder belt passing portions 433 through which the shoulder belt 53 described later is passed; and a pair of waist belt passing portions 434 through which the waist belt 52 described later is passed. In addition, the belt passing portion 43 is provided so as to be continuous with the portion of the seat portion 3 to which the safety belt 5 is connected (the first shoulder belt connection portion 35L, the second shoulder belt connection portion 35R, the first waist belt connection portion 36L, the second waist belt connection portion 36R, or the crotch belt connection portion 37) in the thickness direction. The crotch belt passing portion 431 is provided with a crotch buffer portion 432, which can accommodate the clamping piece 512 of the crotch belt 51 described later. As described later, the inner portions in the width direction of the pair of belt passing portions 434 constitute the force applying portions 44 (first force applying portion and second force applying portion) for applying force to the first belt holding portion 61L and the second belt holding portion 61R (see Figure 7 ).

[0039] like Figure 1As shown, the seat belt 5 is used to fix the seated person C to the seat body 2 (refer to Figure 6 ), and is a belt-shaped portion connected to the seat body 2. Specifically, the seat belt 5 has: a crotch belt 51 that fixes the crotch portion of the seated person C sitting on the seat body 2 to the seat body 2; a waist belt 52 that fixes the waist portion of the seated person C to the seat body 2; and a shoulder belt 53 that fixes the shoulder portion of the seated person C to the seat body 2. The seat belt 5 of this embodiment is configured to have a shoulder waist belt 54 in which the waist belt 52 and the shoulder belt 53 are integrated. In addition, the seat belt 5 of this embodiment has a pair of shoulder waist belts 54 and a crotch belt 51, that is, a so-called five-point seat belt capable of clamping the crotch belt 51 on the two shoulder waist belts 54.

[0040] like Figure 2 As shown, the crotch belt 51 has: a crotch belt portion 511 of a belt shape whose base end in the longitudinal direction is connected to the crotch belt connecting portion 37; and a fastener 512 provided at the front end of the crotch belt portion 511. The fastener 512 is a portion that can be fastened to the shoulder belt 54, and is a buckle in this embodiment. The crotch belt 51 is accommodated in the crotch buffer portion 432 (see FIG. 4 ). Figure 1 ) is used in the state.

[0041] like Figure 1 and Figure 2 As shown, the shoulder belt 54 is a belt-shaped portion provided separately in the width direction. Specifically, the shoulder belt 54 includes: a first shoulder belt 54L provided on one side relative to the center portion in the width direction of the seat portion 3; and a second shoulder belt 54R provided on the other side relative to the center portion in the width direction of the seat portion 3. The first shoulder belt 54L extends from the first shoulder belt connecting portion 35L to the first waist belt connecting portion 36L, and the second shoulder belt 54R extends from the second shoulder belt connecting portion 35R to the second waist belt connecting portion 36R. In addition, the pair of shoulder belts 54 includes: a first locking member 541L or a second locking member 541R (specifically, a tongue piece that can be locked to a buckle) that can be locked to the locked member 512; and a belt-shaped shoulder belt main body 542 that extends through the first locking member 541L or the second locking member 541R. The pair of shoulder and waist belts 54 of this embodiment are divided into the shoulder belt 53 and the waist belt 52 by folding back at the first locking piece 541L or the second locking piece 541R. Specifically, the portion of the first shoulder and waist belt 54L located on the first shoulder belt connecting portion 35L side relative to the first locking piece 541L in the length direction is the first shoulder belt portion 53L, and the portion located on the first waist belt connecting portion 36L side relative to the first locking piece 541L is the first waist belt main body 521L. In addition, the portion of the second shoulder and waist belt 54R located on the second shoulder belt connecting portion 35R side relative to the second locking piece 541R in the length direction is the second shoulder belt portion 53R, and the portion located on the second waist belt connecting portion 36R side relative to the second locking piece 541R is the second waist belt main body 521R.

[0042] In addition, in this embodiment, the pair of shoulder belt main body parts 542 are configured to be able to adjust the length. Figure 2 As shown, the seat belt 5 has a belt length adjustment mechanism 55, and the belt length adjustment mechanism 55 has an adjustment belt 551 connected to a pair of shoulder-lap belt main body parts 542. The belt length adjustment mechanism 55 has: the adjustment belt 551 connected to the pair of shoulder-lap belt main body parts 542; and an adjustment belt claw 552 provided in the front part of the seat seat 32 and holding the middle part of the length direction of the adjustment belt 551. In such a belt length adjustment mechanism 55, the adjustment belt claw 552 changes the position of holding the adjustment belt 551, thereby being able to adjust the length of the pair of shoulder-lap belt main body parts 542.

[0043] like Figure 1 and Figure 2 As shown, the waist belt 52 includes: a first waist belt 52L; and a second waist belt 52R provided on the other side in the width direction than the first waist belt 52L. The first waist belt 52L includes: a first waist belt main body 521L formed in a belt shape so as to have a first base end 523L at an end in the longitudinal direction; and a first retainer 541L attached to the first waist belt main body 521L so as to be separated from the first base end 523L in the longitudinal direction. The second waist belt 52R includes: a second waist belt main body 521R formed in a belt shape so as to have a second base end 523R at an end in the longitudinal direction; and a second retainer 541R attached to the second waist belt main body 521R so as to be separated from the second base end 523R in the longitudinal direction. In the present embodiment, the first waist belt 52L and the second waist belt 52R are provided substantially symmetrically with respect to the center in the width direction of the seat portion 3 as a reference.

[0044] like Figure 2 As shown, the first base end portion 523L of the first lap belt body 521L is connected to the first lap belt connection portion 36L. The first base end portion 523L is inserted into a hole formed in the seat seat portion 32 as the first lap belt connection portion 36L, and is folded back inside the seat seat portion 32 and fixed by the connection member 361, thereby being connected to the first lap belt connection portion 36L (see Figure 7 ). In addition, the first waist belt body 521L has a first locking member stopper 522L (see Figure 6). The first locking member stopper 522L is a portion that is provided to be able to protrude from the first waistband body 521L, and abuts against the first locking member 541L that is intended to move toward the first base end portion 523L, thereby restricting the first locking member 541L from moving toward the first base end portion 523L. That is, the position of the first locking member 541L closest to the first base end portion 523L in the length direction of the first waistband body 521L is the position where the first locking member stopper 522L is provided.

[0045] The second girdle body 521R is configured to be substantially symmetrical with the first girdle body 521L with respect to the center in the width direction of the seat portion 3 as a reference. Specifically, the second base end portion 523R of the second girdle body 521R is connected to the second girdle connecting portion 36R, and further, a second locking member stopper portion 522R (see FIG. 1 ) is provided which can be protruded from the second girdle body 521R. Figure 6 ). The second locking member stopper 522R contacts the second waist belt body 521R that is about to move toward the second base end 523R, thereby restricting the second locking member 541R from moving toward the second base end 523R. That is, the position of the second locking member 541R closest to the second base end 523R in the length direction of the second waist belt body 521R is the position where the second locking member stopper 522R is provided.

[0046] like Figure 3 and Figure 4 As shown, the belt holder 6 has a belt holder 61 for holding the belt 52 and a connecting portion 62. The belt holder 6 is a belt-shaped component extending in the width direction, and has a symmetrical shape with the center in the width direction as a reference. The belt holder 61 has: a first belt holder 61L provided at one end in the width direction and holding the first belt 52L; a second belt holder 61R provided at the other end in the width direction and holding the second belt 52R, and the connecting portion 62 is configured to extend on the first belt holder 61L and the second belt holder 61R, and connect the first belt holder 61L and the second belt holder 61R.

[0047] The first waist belt holding part 61L includes: a first base part 611L having a cushioning property capable of absorbing a force applied in the thickness direction; and a first holding body part 612L provided on the first base part 611L and holding the first waist belt 52L. Such a first waist belt holding part 61L has elasticity to the extent that it can be deformed by an external force, and has rigidity to the extent that it can stand on its own while holding the first waist belt 52L.

[0048] One surface of the first base portion 611L in the thickness direction ( Figure 4The first base portion 611L is a bag-shaped portion formed by overlapping two pieces of fabric in the thickness direction and sewing the outer edge portions, and has a plate-shaped reinforcement portion 613 inside. The reinforcement portion 613 is a plate-shaped elastic body that reinforces the rigidity of the first base portion 611L. Such a reinforcement portion 613 is provided to extend from the other end portion (the root portion 616 described later) in the width direction of the first base portion 611L to one end. In addition, the first base portion 611L has a fixed portion 614 that can be engaged and disengaged with a fixing portion 615 of the first retaining body portion 612L described later. The fixed portion 614 of this embodiment is the male buckle side of a snap.

[0049] The first holding body 612L is a part that is engaged with the first waist belt body 521L of the first waist belt 52L to hold the first waist belt body 521L. The first holding body 612L of this embodiment is a belt-shaped part connected to the first base 611L, one end of which in the extension direction is fixed to the first base 611L, and a fixing part 615 that can be engaged with and disengaged from the first base 611L is provided at the other end in the extension direction. In a state where the first holding body 612L overlaps with the belt holding surface 611b side of the first base 611L, the fixing part 615 can be engaged with and disengaged from the fixed part 614 provided on the first base 611L. In this embodiment, the fixing part 615 is the female buckle side of the buckle. In a state where the fixing part 615 is engaged with the fixed part 614, the first base 611L and the first holding body 612L form a closed loop.

[0050] The first waist belt holding part 61L is wound along the outer peripheral surface of the first waist belt main body 521L to hold the first waist belt main body 521L. Specifically, when the first waist belt main body 521L is overlapped with the belt holding surface 611b of the first base 611L, the fixing part 615 of the first holding main body 612L is locked with the fixed part 614 of the first base 611L, so that the part between the first base end 523L of the first waist belt main body 521L and the first locking piece 541L is accommodated in the closed loop formed by the first base 611L and the first holding main body 612L, thereby holding the first waist belt 52L. In addition, the first waist belt holding part 61L can be removed from the first waist belt 52L by releasing the locking of the fixing part 615 and the fixed part 614. Furthermore, in the first hip belt holding portion 61L, the other end portion in the width direction is configured as a root portion 616 , and the root portion 616 is urged toward one side in the width direction by the urging portion 44 (first urging portion) as described later.

[0051] The second waist belt holding portion 61R has the same structure as the first waist belt holding portion 61L except that it is configured to hold the second waist belt 52R. That is, the second waist belt holding portion 61R has a contact surface 611a on one side in the thickness direction, and a bag-shaped second base portion 611R on the other side, and the second base portion 611R has a belt holding surface 611b; and a second holding body portion 612R provided in the second base portion 611R and holding the second waist belt 52R. In addition, the second base portion 611R has a reinforcement portion 613 provided inside and extending from one end (root portion 616) in the width direction of the second base portion 611R to the other end; and a fixed portion 614 that can be engaged with and disengaged from the fixing portion 615 of the second holding body portion 612R. The second holding body portion 612R is a belt-shaped portion connected to the second base portion 611R, and one end of the second holding body portion 612R in the extension direction is fixed to the second base portion 611R, and a fixing portion 615 is provided at the other end in the extension direction. One end portion in the width direction of the second hip belt holding portion 61R is configured as a root portion 616 , and the root portion 616 is urged toward the other side in the width direction by the urging portion 44 (second urging portion) as described later.

[0052] Such a second waist belt holding part 61R is wound along the outer peripheral surface of the second waist belt main body 521R to hold the second waist belt main body 521R. Specifically, in a state where the second waist belt main body 521R is overlapped on the belt holding surface 611b of the second base 611R, by locking the fixing part 615 of the second holding main body 612R with the fixed part 614 of the second base 611R, the part between the second base end 523R of the second waist belt main body 521R and the second locking piece 541R is accommodated inside the closed loop formed by the second base 611R and the second holding main body 612R, thereby holding the second waist belt 52R. In addition, the second waist belt holding part 61R can be removed from the second waist belt 52R by releasing the locking of the fixing part 615 and the fixed part 614. Furthermore, one end portion in the width direction of the second hip belt holding portion 61R is configured as a root portion 616 , and the root portion 616 is urged toward the other side in the width direction by the urging portion 44 (second urging portion) as described later.

[0053] In the present embodiment, the widthwise length L1 of the first lap belt holding portion 61L is longer than the distance from the first lap belt connecting portion 36L of the seat seat 32 to the center of the armrest 34 provided on one side in the widthwise direction, and the widthwise length L3 of the second lap belt holding portion 61R is longer than the distance from the second lap belt connecting portion 36R of the seat seat 32 to the center of the armrest 34 provided on the other side in the widthwise direction. In addition, the widthwise length L1 of the first lap belt holding portion 61L is shorter than the length from the first base end portion 523L of the first lap belt main body 521L to the first locking member stopper portion 522L, and the widthwise length L3 of the second lap belt holding portion 61R is shorter than the length from the second base end portion 523R of the second lap belt main body 521R to the second locking member stopper portion 522R.

[0054] The connecting portion 62 is a belt-shaped portion extending from the first waist belt holding portion 61L and the second waist belt holding portion 61R, and connects the first waist belt holding portion 61L and the second waist belt holding portion 61R. Specifically, one end of the connecting portion 62 in the width direction is connected to the other end of the first base portion 611L in the width direction, and the other end of the connecting portion 62 in the width direction is connected to one end of the second base portion 611R in the width direction. In addition, the connecting portion 62 of this embodiment is connected to the first base portion 611L and the second base portion 611R in such a manner that the first base portion 611L can rotate relative to the connecting portion 62 with the connecting portion of the connecting portion 62 as an axis, and the second base portion 611R can rotate relative to the connecting portion 62 with the connecting portion of the connecting portion 62 as an axis.

[0055] In addition, the connecting portion 62 of this embodiment is configured such that the length L2 in the width direction is shorter than the distance between the first waist belt connecting portion 36L and the second waist belt connecting portion 36R in the width direction. Furthermore, the connecting portion 62 is configured such that the length L2 in the width direction is shorter than the distance between the pair of waist belt passing portions 434 in the width direction.

[0056] like Figures 5 to 7As shown, in the lap belt holder 6, the connection portion 62 is provided between the upper surface of the cushion portion 4 and the upper surface of the seat seat portion 32, and the lap belt holder 6 is provided on the seat body 2 in a state where the first lap belt holder 61L and the second lap belt holder 61R extend upward from the cushion portion 4. In the lap belt holder 6 of this embodiment, the connection portion 62 is arranged to be located between the lower surface of the cushion portion 4 (the inner side buffer portion 42) and the upper surface of the seat seat portion 32. Here, the lap belt holder 6 is arranged such that, in a state where the first lap belt holder 61L and the second lap belt holder 61R extend upward from the cushion portion 4, the contact surface 611a is located on the inner side in the width direction, and the belt holding surface 611b is located on the outer side in the width direction. When the lap belt holder 6 is provided on the seat body 2 , the first lap belt holder 61L holds the first lap belt body 521L, and the second lap belt holder 61R holds the second lap belt body 521R, thereby holding the lap belt 52 .

[0057] like Figure 7 As shown, the first lap belt holding portion 61L disposed on the seat body 2 has its root 616 located between the upper surface of the cushion portion 4 and the upper surface of the seat seat portion 32. In the present embodiment, the root 616 is located between the lower surface of the cushion portion 4 (the inner buffer portion 42) and the upper surface of the seat seat portion 32 (the position of the lap belt passing portion 434). In addition, the first lap belt holding portion 61L has the root 616 located on the first base end portion 523L side in the length direction of the first lap belt 52L, and the portion located on one side of the root 616 in the width direction of the first lap belt 52L extends upward from the cushion portion 4. In the present embodiment, since the width direction length L2 of the connecting portion 62 is shorter than the width direction distance between the first lap belt connecting portion 36L and the second lap belt connecting portion 36R, a portion of the root 616 is located below the cushion portion 4 (specifically, the inner buffer portion) located above the first lap belt connecting portion 36L. In such a state, the force-applying portion 44 (first force-applying portion) contacts the other side of the root 616 in the width direction of the seat body 2, and applies force to the root 616, thereby applying force to one side of the root 616. Specifically, the force-applying portion 44 (first force-applying portion) applies a force in a certain direction between one side in the width direction and downward to the root 616, and the root 616 is forced to one side in the width direction by this force. In the present embodiment, the force-applying portion 44 (first force-applying portion) contacts the root 616 at several points, and applies a force in a certain direction between one side in the width direction and downward to the root 616 as a resultant force, and the root 616 is forced to rotate to one side in the width direction about the connecting portion with the connecting portion 62 as an axis. Then, the first waist belt retaining portion 61L falls to one side in the width direction by the force applied by the force-applying portion 44 (first force-applying portion), as shown in FIG. Figure 5As shown, one end in the width direction thereof is tilted toward the armrest 34. In addition, the first lap belt holding portion 61L maintains a portion located to one side of the root portion 616 (a portion extending upward from the seat cushion portion 4) separated upward from the upper surface of the seat cushion portion 4 by its own rigidity.

[0058] The first lap belt holding portion 61L is biased by the biasing portion 44 (first biasing portion) and is in a state of falling toward the armrest 34, whereby the first lap belt 52L held by the first lap belt holding portion 61L is guided in a manner extending along the first lap belt holding portion 61L. Therefore, the first lap belt 52L is in a state where the first lap belt main body 521L stands upward from the seat seat portion 32 and the cushion portion 4 and extends from the first lap belt connecting portion 36L to one side in the width direction. Therefore, it is possible to prevent the first lap belt 52L from falling inward in the width direction and being placed on the seat main body 2 (the cushion portion 4 in this embodiment). In addition, the first locking piece 541L is locked at one end portion in the width direction of the first lap belt holding portion 61L, and the movement of the first locking piece 541L to the first base end portion 523L side in the length direction of the first lap belt main body 521L is restricted. Therefore, the first lap belt holding portion 61L can hold the first locking piece 541L at a position separated from the seat main body 2 , so that the first locking piece 541L can be prevented from being placed in the seat main body 2 .

[0059] The second lap belt holding portion 61R disposed on the seat body 2 is symmetrical to the first lap belt holding portion 61L with respect to the center in the width direction. That is, the second lap belt holding portion 61R is in a state where the root portion 616 is located between the upper surface of the cushion portion 4 and the upper surface of the seat seat portion 32 (specifically, between the lower surface of the cushion portion 4 (inner buffer portion 42) and the upper surface of the seat seat portion 32). In addition, the second lap belt holding portion 61R is in a state where the root portion 616 is disposed on the second base end portion 523R side in the longitudinal direction of the second lap belt 52R, and the portion on the other side of the root portion 616 in the width direction of the second lap belt 52R extends upward from the seat seat portion 4. In the present embodiment, since the length L2 of the connection portion 62 in the width direction is configured to be shorter than the distance in the width direction between the first lap belt connection portion 36L and the second lap belt connection portion 36R, a portion of the root portion 616 is located below the seat cushion portion 4 (specifically, the inner buffer portion), and the seat cushion portion 4 is located above the second lap belt connection portion 36R. In this state, the force applying portion 44 (second force applying portion) contacts from one side of the root portion 616 in the width direction of the seat body 2, thereby applying force to the root portion 616 to the other side. Specifically, the force applying portion 44 (second force applying portion) applies force in any direction from the other side in the width direction to the bottom to the root portion 616, and the root portion 616 is urged to the other side in the width direction by this force. In this embodiment, the force applying portion 44 (second force applying portion) contacts the root portion 616 at several points, so that a force in any direction from the other side in the width direction to the bottom is applied to the root portion 616 as a resultant force, and the root portion 616 is forced to rotate in the width direction toward the other side with the connection portion with the connection portion 62 as an axis. In addition, the second waist belt holding portion 61R is tilted toward the other side in the width direction by the force applied by the force applying portion 44 (second force applying portion), as shown in FIG. Figure 5 As shown, the other end in the width direction is tilted toward the armrest 34. In addition, the second lap belt holding portion 61R maintains a state where the portion on the other side of the root portion 616 (the portion extending upward from the seat cushion portion 4) is separated upward from the upper surface of the seat cushion portion 4 by its own rigidity.

[0060] The second lap belt holding portion 61R is biased by the force and becomes a state of falling toward the armrest 34, thereby guiding the second lap belt 52R held by the second lap belt holding portion 61R to extend along the second lap belt holding portion 61R. Therefore, the second lap belt 52R is in a state where the second lap belt main body 521R stands upward from the seat seat portion 32 and the cushion portion 4 and extends from the second lap belt connecting portion 36R to the other side in the width direction. Therefore, it is possible to suppress the second lap belt 52R from falling inward in the width direction and being placed on the seat body 2 (the cushion portion 4 in this embodiment). In addition, the second locking piece 541R is locked at the other end portion in the width direction of the second lap belt holding portion 61R, and its movement toward the second base end portion 523R side in the length direction of the second lap belt main body 521R is restricted. Therefore, the second lap belt holding portion 61R can hold the second locking piece 541R in a position separated from the seat body 2, so it is possible to suppress the second locking piece 541R from being placed on the seat body 2.

[0061] In the present embodiment, the length of the connecting portion 62 in the width direction is shorter than the distance in the width direction of the pair of belt passing portions 434, and therefore, the root portion 616 of the first belt holding portion 61L and the root portion 616 of the second belt holding portion 61R are located on the inner side in the width direction compared to the pair of belt passing portions 434. Therefore, the root portion 616 of the first belt holding portion 61L and the root portion 616 of the second belt holding portion 61R can reliably abut against the force applying portion 44 (the first force applying portion and the second force applying portion).

[0062] By means of the seat belt 1 and the lap belt holder 6 constructed as above, Figure 5 As shown in FIG. 1 , when the seated person C is not seated, the first lap belt 52L is held by the first lap belt holding portion 61L, and the root portion 616 of the first lap belt holding portion 61L is urged to one side in the width direction by the urging portion 44 (first urging portion), so that the first lap belt 52L is prevented from being placed on the seat body 2. Therefore, the effort required to remove the lap belt 52 when the seated person C is seated can be saved.

[0063] Furthermore, since the lap belt holding portion 61 is attachable and detachable to the lap belt 52 and the seat body 2, the lap belt holding portion 61 can be attached and detached as necessary. Therefore, convenience is improved.

[0064] Moreover, the seat cushion portion 4 has a force applying portion 44 (first force applying portion), which abuts against the root 616 of the first waist belt holding portion 61L and applies force to one side in the width direction. Therefore, the root 616 of the first waist belt holding portion 61L can be reliably forced to one side in the width direction by the force applying portion 44 (first force applying portion).

[0065] Furthermore, when the seated person C is not seated, the second lap belt 52R is held by the second lap belt holding portion 61R, and the root portion 616 of the second lap belt holding portion 61R is urged toward the other side in the width direction by the urging portion 44 (second urging portion), so that the second lap belt 52R is prevented from being placed on the seat body 2. Therefore, the effort required to remove the lap belt 52 when the seated person C is seated can be saved.

[0066] Furthermore, since the length L1 of the first lap belt holding portion 61L in the width direction is longer than the distance from the first lap belt connecting portion 36L to the center portion of the armrest 34 in the vertical direction, the first lap belt 52L can be reliably guided to the portion in the width direction where the armrest 34 is provided. Therefore, it is possible to reliably prevent the lap belt 52 from being placed on the seat body 2.

[0067] In addition, the first belt holding portion 61L has elasticity to the extent that it can be deformed by external force. Figure 6 As shown, in the first lap belt 52L, the first locking member 541L can be locked to the locked member 512 in a state where the first lap belt holding portion 61L is attached to the first lap belt main body 521L, and the seated person C can be fixed to the seat main body 2. In addition, in the first base 611L of the first lap belt holding portion 61L, the belt holding surface 611b and the contact surface 611a are provided on one side and the other side in the thickness direction, and the force applied in the thickness direction can be absorbed, so that the impact received by the seated person C from the first lap belt 52L can be absorbed. Therefore, the effort spent on sitting can be saved, and the comfort when sitting can be improved.

[0068] Moreover, if Figure 6 As shown, the length L1 from one end to the other end (root 616) of the first waist belt retaining portion 61L in the width direction is shorter than the distance from the first base end 523L to the first locking member stopper 522L in the length direction of the first waist belt body 521L. Therefore, one end of the first waist belt retaining portion 61L in the width direction is located on the side of the first base end 523L compared to the first locking member 541L. Therefore, when the first locking member 541L is locked to the locked member 512, interference of the first waist belt retaining portion 61L can be suppressed.

[0069] As mentioned above, although the embodiment of the present invention has been described by taking one example, the present invention is not limited to the above embodiment, and various modifications can be added without departing from the gist of the present invention.

[0070] For example, the case where the seat belt seat 1 is a child seat arranged on a seat of a car has been described, but the structure is not limited to this, and for example, it can be configured as a child seat installed in a vehicle other than a car such as a bicycle.

[0071] in addition, Figure 8 and Fig. 9 As shown, for example, the seat 1 with a safety belt can also be configured as a part of a baby stroller. Specifically, the baby stroller has: a seat body 2; wheels (not shown) connected to the lower part of the seat body 2; a waist belt 52 connected to the seat body 2; and a waist belt holder 6. The seat body 2 has: a seat portion 3 constituting an outer shell of the seat body 2 and a cushion portion 4 laid on the seat portion 3, and the seat portion 3 is provided with a first waist belt connecting portion 36L and a second waist belt connecting portion 36R for connecting the waist belt 52 to the seat body 2. In addition, the cushion portion 4 of the present embodiment has only a cover portion 41 and does not have an inner buffer portion 42. The first waist belt connecting portion 36L and the second waist belt connecting portion 36R are annular portions that can be inserted with the belt-shaped waist belt 52. The waist belt 52 is formed by inserting one end of a belt-shaped body in the longitudinal direction into a first waist belt 52L and the other end into a second waist belt 52R, and the waist belt 52 is inserted into the first waist belt connecting portion 36L and the second waist belt connecting portion 36R to be fixed to the seat body 2. The waist belt holder 6 has the same structure as the waist belt holder 6 in the above-mentioned embodiment. Even with such a structure, Fig. 9 As shown, when the seated person C is not seated, the first lap belt holding portion 61L holds the first lap belt 52L, and the base 616 of the first lap belt holding portion 61L is urged toward one side in the width direction by the urging portion 44 (first urging portion), so that the first lap belt 52L is prevented from being placed on the seat body 2. Therefore, the effort of removing the lap belt 52 when sitting can be omitted.

[0072] Furthermore, although the case where the lap belt 52 is connected to the seat seat portion 32 has been described, the configuration is not limited to this, and for example, the lap belt 52 may be connected to the seat cushion portion 4 .

[0073] In addition, although the lap belt holding portion 61 is described as being detachable, the present invention is not limited to such a structure, and may be configured to be non-detachable relative to the seat body 2 and the lap belt 52. When such a structure is adopted, for example, the root portion 616 of the first lap belt holding portion 61L can be fixed to the outer edge of the lap belt passing portion 434.

[0074] Moreover, the case where the inner buffer portion 42 is configured as the force applying portion 44 (the first force applying portion and the second force applying portion) is described, but the present invention is not limited to such a structure. The cover portion 41 can also be configured as the force applying portion 44, and the force applying portion 44 (the first force applying portion and the second force applying portion) can also be provided as other structures different from the inner buffer portion 42 and the cover portion 41.

[0075] In addition, the description describes a situation in which the belt retaining portion 61 is wrapped around the outer peripheral surface of the belt 52 and thereby retains the belt 52, but the present invention is not limited to such a structure. For example, various structures that can retain the belt 52, such as a structure that clamps the belt 52, can also be used.

[0076] Moreover, the description is made of a case in which both the first locking member 541L and the second locking member 541R are tongues and are locked on a buckle as the locked member 512 provided on the crotch strap 51, but the present invention is not limited to such a structure, and it is also possible to configure one of the first locking member 541L and the second locking member 541R as a tongue and the other as a buckle, and to lock the first locking member 541L on the second locking member 541R.

[0077] Furthermore, although the case where the waist belt holding portion 61 includes the first waist belt holding portion 61L and the second waist belt holding portion 61R has been described, the present invention is not limited to such a structure, and a structure including only the first waist belt holding portion 61L may be used.

[0078] Moreover, the seat belt seat 1 with a so-called five-point seat belt is described as an example, wherein the so-called five-point seat belt has a pair of shoulder belts 54 and a crotch belt 51, but is not limited to such a structure. For example, it can also be a structure with a two-point seat belt only having a crotch belt 52.

[0079] In addition, the case where the first lap belt connection portion 36L and the second lap belt connection portion 36R are provided on the seat seat portion 32 in a manner separated from the armrest 34 in the width direction is described, but the present invention is not limited to such a structure, and the first lap belt connection portion 36L and the second lap belt connection portion 36R can also be provided at a position not separated from the armrest 34 of the seat seat portion 32.

[0080] Furthermore, although the first belt holding portion 61L and the second belt holding portion 61R are provided with the reinforcement portion 613, the rigidity of the first base portion 611L and the second base portion 611R is improved, the present invention is not limited to such a structure, and the first belt holding portion 61L and the second belt holding portion 61R may also be provided with no reinforcement portion. When such a structure is adopted, for example, the first base portion 611L and the second base portion 611R themselves may be formed of a material having a rigidity sufficient to be self-supporting.

[0081] In addition, the case where the connecting portion 62 is provided between the upper surface of the seat seat portion 32 and the lower surface of the cushion portion 4 is described, but it is not limited to such a structure. For example, it can also be a structure provided between the cover portion 41 and the inner buffer portion 42, or a structure provided in a manner passing through the cover portion 41 or the inner buffer portion 42.

[0082] Description of Reference Numerals

[0083] 1… Seat with safety belt, 2… Seat body, 3… Seat part, 31… Seat back, 32… Seat seat, 33… Seat side, 34… Armrest, 35L… First shoulder belt connection part, 35R… Second shoulder belt connection part, 36L… First waist belt connection part, 36R… Second waist belt connection part, 37… Hip belt connection part, 4… Cushion part, 41… Cover part, 41a… Seam, 41b… Hole, 42… Inner buffer part, 42a… Notch part, 43...belt passing part, 431...crotch belt passing part, 432...crotch buffer part, 433...shoulder belt passing part, 434...waist belt passing part, 44...force applying part, 5...safety belt 51...crotch belt, 511...crotch belt part, 512...fixed part, 52...waist belt, 52L...first waist belt, 52R...second waist belt, 521L...first waist belt body, 521R...second waist belt body, 522L...first fixing part stopper, 522 R…second locking member stopper, 523L…first base end, 523R…second base end, 53…shoulder belt, 53L…first shoulder belt, 53R…second shoulder belt, 54…shoulder belt, 54L…first shoulder belt, 54R…second shoulder belt, 541L…first locking member, 541R…second locking member, 542…shoulder belt body, 55…belt length adjustment mechanism, 551…adjusting safety belt, 552…adjusting belt claw, 6 …belt holder, 61…belt holder, 61L…first belt holder, 61R…second belt holder, 611L…first base, 611R…second base, 611a…contact surface, 611b…belt holder surface, 612L…first holder body, 612R…second holder body, 613…reinforcing portion, 614…fixed portion, 615…fixing portion, 616…root, 62…connecting portion, C…seat occupant.

Claims

1. A seat with a safety belt, comprising: A seat body for a seated person to sit on, a waist belt for fixing the waist of the seated person sitting in the seat body to the seat body, and a waist belt holding part for holding the waist belt. The seat body has a first belt connection portion, and the first belt connection portion is arranged at a position closer to one side than a center portion in a width direction of the seat body. The waist belt comprises: a first waist belt body formed in a belt shape in a manner having a first base end portion on one side in a longitudinal direction; and a first locking piece attached to the first waist belt body in a manner separated from the first base end portion in the longitudinal direction. The first base end portion of the first waist belt body is connected to the first waist belt connecting portion. The belt holding portion has a first belt holding portion in the longitudinal direction of the belt, and the first belt holding portion holds the first belt body between the first base end portion and the first locking piece. The seat body includes a first urging portion that urges a root portion of the first lap belt holding portion, which is disposed on the first base end portion side, toward one side in the width direction of the seat body.

2. The seat with safety belt according to claim 1, The lap belt holding portion is attachable to and detachable from the seat body and the lap belt.

3. The seat with safety belt according to claim 1, The seat body comprises: a seat portion constituting an outer shell of the seat body; and a cushion portion disposed inside the seat portion. The seat portion has the first belt connecting portion, The first base end portion of the first waist belt body is connected to the first waist belt connecting portion. The cushion portion has the first force applying portion, The first urging portion is configured to come into contact with the root portion from the other side in the width direction of the seat body.

4. The seat with safety belt according to claim 1, The waist belt comprises: a second waist belt body formed in a belt shape in a manner having a second base end portion on one side in the longitudinal direction; and a second locking piece attached to the second waist belt body in a manner separated from the second base end portion in the longitudinal direction. The seat body has a second belt connection portion, and the second belt connection portion is arranged at a position closer to the other side than the center portion in the width direction of the seat body. The second base end portion of the second waist belt body is connected to the second waist belt connecting portion. The belt holding portion has a second belt holding portion in the longitudinal direction of the belt, and the second belt holding portion holds the second belt body between the second base end portion and the second locking piece. The seat body includes a second urging portion that urges a root portion of the second lap belt holding portion, which is disposed on the second base end side, toward the other side in the width direction of the seat body.

5. A lap belt holder that can be mounted on a seat with a safety belt, the seat with a safety belt comprising: a seat body on which a seated person sits; and a lap belt that fixes the waist of the seated person sitting in the seat body to the seat body, The seat body includes a first belt connection portion and a second belt connection portion which are arranged to be separated from each other in the width direction of the seat body. The waist belt comprises: a first waist belt body formed into a belt shape in a manner having a first base end portion on one side in the longitudinal direction; a first locking piece attached to the first waist belt body in a manner separated from the first base end portion in the longitudinal direction; a second waist belt body formed in a belt shape so as to have a second base end portion on one side in the longitudinal direction; and a second locking piece attached to the second belt body in a manner separated from the second base end portion in the length direction, The first base end portion of the first waist belt body is connected to the first waist belt connecting portion. The second base end portion of the second waist belt body is connected to the second waist belt connecting portion. The waist belt holder has: a first waist belt holding portion, which holds the first waist belt body between the first base end portion and the first locking piece in the length direction of the waist belt; a second waist belt holding portion, which holds the second waist belt body between the second base end portion and the second locking piece in the length direction of the waist belt; as well as A connecting portion connecting the first waist belt holding portion and the second waist belt holding portion.

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