JP4250028B2 - Detachable child seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a child seat in which a seat body and a base member are detachable.
[0002]
[Prior art]
The same applicant as this application disclosed a child seat in Japanese Patent Laid-Open No. 10-250426 (Patent Document 1). The child seat disclosed in this gazette includes a base member and a seat body that is pivotably supported on the base member. The pivotable seat body is positioned forward, backward and sideways as required on the car seat.
[0003]
In the case of the swivel child seat as described above, the seat body swivels on the base member fixed on the seat of the car, so that the base member has a size that allows the seat body to swivel. Must have. For this reason, the child seat must be enlarged.
[0004]
In order to reduce the size of the child seat, it is preferable that the seat body is detachable from the base member. An example of such a child seat is disclosed in Japanese Patent Laid-Open No. 2000-301969 (Patent Document 2). Also in the child seat disclosed in this publication, the seat body is positioned forward, backward and sideways on the base member as necessary.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-250426
[Patent Document 2]
JP 2000-301969 A
[Problems to be solved by the invention]
In the case of the child seat disclosed in Japanese Patent Application Laid-Open No. 2000-301969, the base member is provided with four mounting engagement portions for mounting the seat body, and the seat body has the above-described attachment on the lower surface side of the seat portion. A pin portion that can be engaged with the engaging portion is attached.
[0008]
The connecting and fixing structure of the seat main body and the base member disclosed in the above Japanese Patent Laid-Open No. 2000-301969 is very complicated, and a simpler structure is desired.
[0009]
In the case of a detachable child seat, it is necessary to securely and firmly connect and fix the seat body and the base member. Furthermore, it is desired that the seat body does not easily disengage from the base member even if an unexpected situation occurs.
[0010]
An object of the present invention is to further simplify the connecting and fixing structure between the seat body and the base member.
[0011]
[Means for Solving the Problems]
The present invention is a child seat including a base member fixed on a vehicle seat and a seat body detachable from the base member, and is characterized by the following.
[0012]
The base member is provided with a base-side front engagement member that extends in the width direction at the front position and a base-side rear engagement member that extends in the width direction at the rear position. On the bottom surface of the seat body, a pair of front engaging rods that are positioned forward and extend in the width direction, a rear engagement rods that are positioned rearward and extend in the width direction, and a pair of rods positioned on both sides and extending in the front-rear direction and a lateral engagement rod, these rods extend substantially along the square side, the seat body side engaging member which engages on the base side front engaging member and the base-side rear engaging member is provided ing.
[0013]
Since the seat main body side engaging member is provided so as to be positioned substantially along the side of the square, the seat main body side engaging member and the base can be used regardless of whether the seat main body is facing forward, rearward, or sideways. The side engaging member can be engaged with substantially the same structure. Therefore, the connecting and fixing structure of both can be simplified.
[0014]
In one embodiment, the base-side front engagement member includes two front metal fittings that are located apart in the width direction. Base side rear engaging member including two rear receiving metal positioned apart in the width direction.
[0015]
When the seat body is placed forward on the base member, the front engagement rod and the rear engagement rod engage with the front receiving bracket and the rear receiving bracket, respectively. When the seat body is placed rearward on the base member, the rear engagement rod and the front engagement rod engage with the front receiving bracket and the rear receiving bracket, respectively. When the seat body is placed sideways on the base member, the pair of side engagement rods engage with the front receiving bracket and the rear receiving bracket, respectively.
[0016]
The child seat preferably further includes a lock mechanism that locks the engagement state between at least one of the base-side front engagement member and the base-side rear engagement member and the seat body-side engagement member. The lock mechanism includes a lock member provided on the base member so as to be displaceable between a lock position for locking the engagement state and a lock release position for releasing the lock of the engagement state, and the lock member at the lock position. Urging means for urging to bring the lock member to the lock release position, and an operation member operating to bring the lock member to the unlocked position.
[0017]
Preferably, the operating member is exposed from the front end of the base member when the lock member is in the locked position, and is hidden in the base member when the lock member is in the locked position, and the lock member is in the unlocked position. In some cases, a coloring portion exposed from the base member is included.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show a detachable child seat according to an embodiment of the present invention. The child seat 1 includes a seat body 10 and a base member 30. The seat body 10 is detachably supported by the base member 30. 1 and 2 show a state in which the seat body 10 is mounted on the base member 30 in a forward direction.
[0019]
FIG. 7 shows a state in which the seat main body 10 is attached backward on the base member 30, and FIG. 8 shows a state in which the seat main body 10 is laid down and attached sideways on the base member 30. Yes. The seat body 10 includes a seat portion 11 and a backrest portion 12 that is provided so as to be tiltable backward with respect to the seat portion 11. In the forward-mounted state shown in FIGS. 1 and 2, the backrest portion 12 is set to the minimum rearward tilt angle. In the laterally mounted state shown in FIG. 8, the backrest 12 is set to the maximum rearward tilt angle to form a bed shape. In the rearward mounting state shown in FIG. 7, the backrest 12 is set to the intermediate rearward tilt angle.
[0020]
3 and 4 show the base member 30. As illustrated, the base member 30 includes a bottom wall portion 31 that supports the seat portion 11 of the seat body 10 from below, and a standing wall portion 32 that rises upward from the rear end of the bottom wall portion 31 and extends.
[0021]
On the bottom wall portion 31, two front receiving brackets 38 and two rear receiving brackets 39 for attaching the seat body 10 are provided. The two front receiving metal fittings 38 are arranged so as to extend in the width direction at the front position of the bottom wall portion 31. The two rear metal fittings 39 are disposed so as to extend in the width direction at the rear position of the bottom wall portion 31. Each of the metal fittings 38 and 39 has an engaging recess that is rolled forward from the rear end thereof. In the illustrated embodiment, the two front metal fittings 38 and the two rear metal fittings 39 are located apart from each other in the width direction. However, as another embodiment, the front and rear metal fittings are respectively provided. One piece may be used, and they may be extended in the width direction.
[0022]
As is apparent from FIGS. 3 and 4, an inclined base 37 having an inclined surface with a front lowering is provided behind the two rear receiving brackets 39 so as to be continuous. These inclined bases 37 abut on a rear engagement rod 16 (see FIG. 6) of the seat body, which will be described later, from below, guide the abutted rear engagement rod 16 forward and downward, and finally a rear receiving bracket 39. Acts to engage.
[0023]
At the front end of the bottom wall portion 31 of the base member 30, a part of the operation member 40 for releasing the connection and fixing state between the seat body 10 and the base member 30 is exposed. If the operation member 40 is operated so as to be pulled by hand, the locked state of the seat body 10 and the base member 30 can be released. The structure related to the operation member 40 will be described in detail later.
[0024]
As shown in FIG. 3, two belt clips 33 and 34 are attached to the standing wall portion 32 of the base member 30 at the upper portion thereof and at the lower central portion thereof. Belt guides 35 are formed on both sides of the lower belt clip 34.
[0025]
FIG. 9 shows a state in which the base member 30 is fixed on a vehicle seat using a seat belt attached to the vehicle. As illustrated, the seat belt fixed to the buckle bracket 4 includes a shoulder belt portion 2 and a waist belt portion 3. The shoulder belt portion 2 is sandwiched between upper belt clips 33, and the waist belt portion 3 guided by the belt guide 35 is sandwiched between lower belt clips 34.
[0026]
As apparent from FIG. 3, a hooking rod 36 that extends upward at a position separated in the width direction is provided in an upper portion of the standing wall portion 32 of the base member 30. The hook rod 36 will be described in detail later.
[0027]
FIG. 5 is a perspective view showing the seat body 10, and FIG. 6 is a bottom view thereof. As shown in FIG. 6, the bottom surface of the seat portion 11 of the seat body 10 has a substantially square shape, and L-shaped grooves 13 are formed in the vicinity of the four corner portions. Seat body side engaging members that engage the front receiving metal fitting 38 and the rear receiving metal 39 that are the base side engaging members described above are provided in the four L-shaped grooves 13.
[0028]
Specifically, the seat body side engaging member is positioned on both sides of the front engaging rod 14 that is positioned forward and extends in the width direction, the rear engaging rod 16 that is positioned rearward and extends in the width direction. And a pair of side engagement rods 15 extending in the front-rear direction.
[0029]
Each of the engagement rods 14, 15, 16 may be constituted by one long linear rod so as to appear continuously in the two corner grooves 13, or the two grooves 13 A straight rod having a short length may be separately provided for each of the two. Further, a long L-shaped, U-shaped or rectangular rod in which the front engagement rod 14, the side engagement rod 15 and the rear engagement rod 16 are connected to each other may be used. In any case, the rod portion appearing on the groove 13 constitutes the seat main body side engaging member that engages with the base side engaging member described above.
[0030]
The front engagement rod 14, the pair of side engagement rods 15 and the rear engagement rod 16 constituting the seat main body side engagement member extend substantially along a side of a square.
[0031]
FIG. 10 shows an upper region of the back portion of the backrest 12 of the seat body 10. As shown in the figure, two hook rings 17 that engage with the hook rods 36 of the base member 30 described above are provided on the back surface portion of the seat body 10.
[0032]
With reference to FIGS. 18-21, the effect | action of the hook ring 17 of the seat main body 10, the hook rod 36 of the base member 30, and the inclination stand 37 is demonstrated.
[0033]
As shown in FIG. 18, the hooking rod 36 has an upper portion 36a and a lower portion 36b that are bent in shape. When the seat body 10 is lowered from the top and placed on the base member 10, the upper portion 36 a of the hook rod 36 has an upper end at the front so that the hook ring 17 fits smoothly into the hook rod 36. It is inclined to face. On the other hand, the lower portion 36b of the hooking rod 36 has a front-falling inclined shape inclined forward and downward.
[0034]
18 and 20 show a state immediately after the seat body 10 is lowered and placed on the bottom wall portion 31 of the base member 30. FIG. In this state, the rear engagement rod 16 of the seat body 10 abuts on the front downward inclined surface of the inclined base 37 of the base member 30, and the hook ring 17 is engaged with the upper portion 36 a of the hook rod 36. .
[0035]
In the state shown in FIGS. 18 and 20, the rear engagement rod 16 is not engaged with the rear metal fitting 39 of the base member 30. When the seat main body 10 is further pushed downward from this state, the rear engagement rod 16 of the seat main body 10 moves forward and downward along the inclined base 37, and the hook ring 17 has an upper portion 36 a of the hook rod 36. Along the lower portion 36b and then forward and downward.
[0036]
19 and 21 show a state in which the seat body 10 is finally connected and fixed to the base member 30 through the above-described operation. However, FIG. 21 does not show a lock mechanism in an engaged state, which will be described later. As is clear from the above description of the operation, the seat body 10 contacts the base member 30 and then moves forward and downward while engaging slightly with the base member 30 while tilting backward. When the seat body 10 is removed from the base member 30, an operation opposite to the above is required. Accordingly, the connecting and fixing structure of both is strong, and the seat body 10 does not easily detach from the base member 30 even if an unexpected situation occurs during use.
[0037]
Next, with reference to FIGS. 11 to 17, a mechanism for locking the connection and fixing state of the seat body 10 and the base member 30 will be described.
[0038]
FIG. 11 shows the base member 30 (FIG. 11A) and the bottom surface of the seat body 10 (FIG. 11B). As shown in the drawing, the base member 30 is provided with two front receiving brackets 38 and two rear receiving brackets 39. On the other hand, a front engaging rod 14, a pair of side engaging rods 15 and a rear engaging rod 16 are provided on the bottom surface of the seat body 10.
[0039]
When the seat body 10 is placed forward on the base member 30, the front engagement rod 14 engages with the front receiving bracket 38, and the rear engagement rod 16 engages with the rear receiving bracket 39. When the seat body 10 is placed rearward on the base member 30, the rear engagement rod 16 engages with the front receiving bracket 38, and the front engagement rod 14 engages with the rear receiving bracket 39. When the seat body 10 is placed sideways on the base member 30, the pair of side engagement rods 15 engage with the front receiving bracket 38 and the rear receiving bracket 39, respectively.
[0040]
12 and 14 are perspective views of the lock mechanism. FIG. 12 corresponds to a state in which the connection and fixing state is locked, and FIG. 14 corresponds to a state in which the lock is released. 16 and 17 are partial cross-sectional views of the lock mechanism as viewed from the side. FIG. 16 corresponds to a state in which the coupling and fixing state is locked, and FIG. 17 illustrates a state in which the lock is released. It corresponds.
[0041]
In the illustrated embodiment, the lock mechanism locks the engagement state between the rear receiving bracket 39 of the base member 30 and the rear engagement rod 16 of the seat body 10. The lock mechanism includes a hook member 45 as a lock member rotatably attached to the base member 30 via a shaft 46, a slide member 43 that can slide in the front-rear direction on the rail portion 44 of the base member 30, and a base An operating member 40 that is partially exposed from the front end of the member 30, and a spring 42 as an urging means that urges the operating member 40 to be pulled backward (in the direction indicated by arrow A in FIG. 12). Is provided.
[0042]
The hook member 45 can be displaced between the locked position shown in FIG. 16 and the unlocked position shown in FIG. As shown in the figure, the hook member 45 has a hook-shaped head portion 45a, a front leg portion 45b, and a rear leg portion 45c. In the lock position shown in FIG. 16, the head 45 a of the hook member 45 captures the rear engagement rod 16 fitted in the engagement recess of the rear receiving metal 39 and locks the engagement state. On the other hand, in the unlocking position shown in FIG. 17, the head 45 a of the hook member 45 is displaced downward, so that the rear engagement rod 16 can escape from the rear receiving bracket 39.
[0043]
The operation member 40 and the slide member 43 are fixed, and the slide member 43 is moved by moving the operation member 40. The slide member 43 has an inclined surface 43a rising upward and a rear wall 43c extending vertically downward at a rear portion thereof, and a front end wall 43b extending vertically downward at a front portion thereof.
[0044]
In the lock position shown in FIG. 16, the rear wall 43c of the slide member 43 pushes the rear leg portion 45c of the hook member 45 toward the rear, thereby locking the captured state of the rear engagement rod 16 by the hook member 45. This locked state is stably maintained by the biasing force of the spring 42. The rear end position of the slide member 43 is defined by the front end wall 43 b of the slide member 43 coming into contact with the front end surface 44 a of the rail portion 44 of the base member 30.
[0045]
By pulling the operation member 40 exposed from the front end portion of the base member 30 forward, the unlocked state shown in FIG. 17 is obtained. When the operation member 40 is pulled forward, the slide member 43 moves forward, and the inclined surface 43a of the slide member 43 pushes the front leg portion 45c of the hook member 45 upward. As a result, the hook member 45 rotates and its head 45a is retracted to the unlocking position. The front end position of the slide member 43 is defined by the rear wall 43c of the slide member 43 coming into contact with the rear end portion 44b of the rail portion 44.
[0046]
FIG. 15 shows a state immediately after the seat body 10 is lowered onto the base member 10. In the state shown in the drawing, the hook member 45 is in the locked position, and the rear engagement rod 16 is on the inclined base 37. When the seat body 10 is pushed downward in this state, the rear engagement rod 16 comes into contact with the head 45a of the hook member 45, and the hook member 45 is rotated clockwise in the drawing. At that time, the slide member 43 and the operation member 40 pushed by the rear leg portion 45 c of the hook member 45 move forward against the urging force of the spring 42. When the rear engagement rod 16 reaches the engagement recess of the rear receiving metal fitting 39, the slide member 43 and the operation member 40 are moved rearward by the biasing force of the spring 42, and the locked state shown in FIG. 16 is obtained.
[0047]
As shown in FIGS. 12 and 13, the operation member 40 includes an exposed portion 40a exposed from the opening wall 47 of the base member 30 when the hook member 45 is in the locked position, and a base member when the hook member 45 is in the locked position. 30 and a colored portion 41 exposed from the opening wall 47 of the base member 30 when the hook member 45 is in the unlocked position. FIG. 13A shows the position of the operating member 40 in the locked state, and FIG. 13B shows the position of the operating member 40 in the unlocked state. The coloring part 41 is configured by a conspicuous color such as red or yellow.
[0048]
FIG. 13C shows the position of the operation member 40 when the hook member 45 is not completely returned to the locked position and is in a halfway locked state. In this state, since a part of the colored portion 41 is exposed from the opening wall 47 of the base member 30, it can be clearly seen that it is in an incompletely locked state.
[0049]
Although one embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a detachable child seat according to an embodiment of the present invention.
FIG. 2 is a side view of a child seat.
FIG. 3 is a perspective view of a base member.
FIG. 4 is a side view of a base member.
FIG. 5 is a perspective view of a seat body.
FIG. 6 is a bottom view of the seat body.
FIG. 7 is a side view showing a state in which the seat body is attached backward.
FIG. 8 is a front view showing a state in which the seat body is laid down and attached sideways.
FIG. 9 is a front view showing a state in which a base member is attached to a vehicle seat.
FIG. 10 is a view showing a rear upper area of a backrest portion of a seat body.
FIG. 11 is an illustrative view showing a top surface of a base member and a bottom surface of a seat body side by side.
FIG. 12 is a perspective view showing a lock mechanism.
FIG. 13 is a view showing a state in which the operation member is exposed from the front end of the base member.
FIG. 14 is a perspective view showing a lock mechanism.
FIG. 15 is a side view showing the lock mechanism, and shows a state before the rear engagement rod of the seat body is engaged with the rear receiving bracket.
FIG. 16 is a side view showing the locking mechanism, and shows a state in which the engagement between the rear engagement rod and the rear receiving metal fitting is locked.
FIG. 17 is a side view showing the lock mechanism, and shows a state where the lock is released.
FIG. 18 is a view showing a state in which the hook ring is engaged with the upper part of the hook rod.
FIG. 19 is a view showing a state in which the hook ring is engaged with the lower portion of the hook rod.
FIG. 20 is a view showing a state immediately after the seat body is lowered onto the base member.
FIG. 21 is a view showing a state in which a seat body is engaged with a base member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Child seat, 10 seat main body, 11 seat part, 12 backrest part, 13 groove | channel, 14 front engagement rod, 15 side engagement rod, 16 rear engagement rod, 17 hook ring, 30 base member, 31 bottom wall part , 32 Standing wall portion, 36 Hook rod, 36a Upper portion, 36b Lower portion, 37 Inclined base, 38 Front receiving bracket, 39 Rear receiving bracket, 40 Operation member, 40a Exposed portion, 41 Colored portion, 42 Spring, 43 Slide member 43a inclined surface, 43b front end wall, 43c rear end portion, 45 hook member, 45a head portion, 45b front leg portion, 45c rear leg portion, 46 axis, 47 opening wall.

Claims (5)

In a child seat comprising a base member fixed on a car seat and a seat body removable from the base member ,
The base member is provided with a base-side front engagement member extending in the width direction at the front position and a base-side rear engagement member extending in the width direction at the rear position,
On the bottom surface of the seat main body, a pair of front engaging rods that are positioned forward and extend in the width direction, a rear engagement rods that are positioned rearward and extend in the width direction, and a pair that are positioned on both sides and extend in the front-rear direction. Side engagement rods, and these rods extend along substantially square sides and engage with the base front engagement member and the base rear engagement member. Detachable child seat, characterized in that is provided. The base-side front engagement member includes two front receiving brackets that are located apart in the width direction,
The base-side rear engaging member comprises two rear receiving metal positioned apart in the width direction, detachable child seat according to claim 1. When the seat body is placed forward on the base member, the front engagement rod and the rear engagement rod engage with the front bracket and the rear bracket, respectively.
When the seat body is placed rearward on the base member, the rear engagement rod and the front engagement rod engage with the front bracket and the rear bracket, respectively.
3. The detachment according to claim 2, wherein when the seat body is placed sideways on the base member, the pair of side engagement rods engage with the front receiving bracket and the rear receiving bracket, respectively. Formula child seat. A lock mechanism that locks an engagement state between at least one of the base-side front engagement member and the base-side rear engagement member and the seat body-side engagement member;
The lock mechanism includes: a lock member provided on the base member so as to be displaceable between a lock position for locking the engagement state and a lock release position for releasing the lock of the engagement state; The detachable type according to any one of claims 1 to 3, comprising biasing means for biasing a member to bring it to the lock position, and an operation member to operate to bring the lock member to the unlock position. child seat.   The operation member includes an exposed portion exposed from a front end of the base member when the lock member is in the lock position, and is hidden in the base member when the lock member is in the lock position. The detachable child seat according to claim 4, further comprising: a colored portion exposed from the base member when is in the unlocked position.

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