JP2023036338A - child seat - Google Patents

Abstract

To provide a child seat which has the excellent operability when a seat rotates, reclines, slides with respect to a base.SOLUTION: A child seat according to the present invention comprises: a seat on which an infant is seated; reclining which is attached to a vehicle seat, with which the seat rotates around an axis and the seat reclines at a different inclination angle; and a base which supports the seat so as to be able to perform any one movement of slides that linearly move. The child seat includes: a protrusion which is engaged by being biased so as to protrude from the seat lower surface toward a recess of the base, and can fix the seat on the base; and a plurality of operation members which are connected to the protrusion and can reduce a protrusion amount of the protrusion from the seat lower surface by being operated in the opposite biasing direction. Even with any one operation of the plurality of operation members, the protrusion amount of the protrusion from the seat lower surface is reduced, and the seat can perform one movement of rotation, reclining and slide.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat in which a seat on which an infant sits rotates, reclines, or slides relative to a base attached to a vehicle seat.

It is legally required to use a child seat when driving with an infant in the vehicle.
Conventionally, various child seats have been proposed. The child seat disclosed in Patent Document 1 is configured such that the seat (seat body) is reclinably and rotatably supported with respect to a base (cradle), and the retraction amount of the protruding member is interlocked with the protruding amount of the operating member. there is The first operation amount of the operating member for obtaining the amount of retraction of the protruding member necessary for sliding the seat between the plurality of reclining positions causes the seat body to move from one of the plurality of reclining positions to the rotating position. It is smaller than the second operation amount of the operation member for obtaining the retraction amount of the projecting member required for sliding. This effectively prevents the seat from unintentionally moving to a rotatable position.

However, the child seat disclosed in Patent Document 1 has only one operation member, and when the person who operates this operation member operates from either the left or right door side of the vehicle, the child seat can be operated from either the left or right side. One operating member must be placed in front of or behind the seat. In this case, the operating member is placed at a position away from the person who operates the door. For example, when the person who operates the door is outside the vehicle, the operating member must bend down inside the vehicle and reach out to operate it. Poor operability. In addition, the operability is extremely poor when it is necessary to apply force to operate.

Japanese Patent No. 5306727

SUMMARY OF THE INVENTION An object of the present invention is to provide a child seat that is easy to operate when the seat rotates, reclines, and slides relative to the base.
Another object of the present invention is to provide a child seat in which the number of parts of operation members is reduced when the seat rotates, reclines, and slides with respect to the base.

As a first means for solving the above problems, the present invention provides a seat on which an infant sits, a reclining seat that is attached to a vehicle seat, rotates around an axis, and reclines at a different angle of inclination. A child seat having a base that supports any one of linearly moving slides,
a convex portion biased to project from the lower surface of the seat toward the concave portion of the base and engaged therewith to fix the seat to the base;
having a plurality of operating members connected to the convex portion and capable of reducing the amount of projection of the convex portion from the bottom surface of the seat by being operated in the anti-biasing direction;
The amount of protrusion of the convex portion from the bottom surface of the seat is reduced even when any one of the plurality of operating members is operated, and the seat can perform any one of rotating, reclining, and sliding operations. To provide a child seat for children.
According to the first means, when the seat on which the infant is seated rotates, reclines, or slides relative to the base attached to the vehicle seat, any one of the plurality of operation members is operated. The same operation can be performed by operating. Further, one of the plurality of operation members is arranged near the operator, and the operability is good.

As a second means for solving the above-mentioned problems, the present invention provides a seat on which an infant sits, a reclining seat that is attached to a vehicle seat, rotates around an axis, and reclines at different tilt angles. A child seat with a base supporting any two of the linearly moving slides,
a convex portion biased to project from the lower surface of the seat toward the concave portion of the base and engaged therewith to fix the seat to the base;
having a plurality of operating members connected to the convex portion and capable of reducing the amount of projection of the convex portion from the bottom surface of the seat by being operated in the anti-biasing direction;
When all of the plurality of operating members are operated, the amount of projection of the convex portion from the bottom surface of the seat becomes 0 from the maximum value, and the seat rotates, reclines, or slides. do it,
Even when any one of the plurality of operation members is operated, the amount of projection of the convex portion from the bottom surface of the seat decreases from a maximum value to 0, and the seat rotates, reclines, or slides. To provide a child seat characterized by being able to perform either one of the actions.

According to the second means, when the seat on which the infant is seated rotates, reclines, or slides with respect to the base attached to the vehicle seat, any one of the plurality of operation members is operated. The same operation can be performed by operating. Further, one of the plurality of operation members is arranged near the operator, and the operability is good. In addition, the seat on which the infant sits can be operated with only a plurality of operation members when rotating, reclining, or sliding relative to the base, thereby reducing the number of parts.

As a third means for solving the above problems, the present invention provides, in the first or second means, a bridge pin-connected to the convex portion, and connecting members are provided at both ends of the bridge to form the plurality of An object of the present invention is to provide a child seat, wherein an operation member is connected, and the projection and the bridge are integrally slidable in the vertical direction under the seat.
According to the third means, the same action can be performed by operating any one of the plurality of operating members.

As a fourth means for solving the above problems, the present invention provides a child seat according to the third means, characterized in that the projection is pin-connected at a position offset from the longitudinal center of the bridge. to do.
According to the fourth means, when any one of the plurality of operation members is operated (one-handed operation), the amount of projection of the convex portion differs, and different sheet operations can be performed when one-handed operation is performed.

The present invention provides a fifth means for solving the above problems, in any one of the first to fourth means, wherein the rotating structure of the seat comprises a disc on the lower surface of the seat and a disc protruding from the disc. The object of the present invention is to provide a child seat comprising the convex portion, a disc concave portion into which the disc is fitted on the upper surface of the base, and one or more concave portions into which the convex portion is fitted.
According to the fifth means, the seat can be rotated and fixed in any position, for example, forward (front) or backward (rear).

The present invention provides a sixth means for solving the above-described problems, in any one of the first to fourth means, wherein the seat reclining structure comprises a curved member on the lower surface of the seat, and a recliner from the curved member. Provided is a child seat characterized by comprising the projecting convex portion, a curved concave portion in which the curved member is fitted on the upper surface of the base, and one or more concave portions in which the convex portion is fitted on the bottom surface of the curved member. to do.
According to the sixth means, the seat can be reclined and fixed at a position with a predetermined inclination angle.

As a seventh means for solving the above problems, the present invention provides, in any one of the first to fourth means, the slide structure of the seat, which includes a rectangular member on the lower surface of the seat and a Provided is a child seat characterized by comprising the protruded protrusion, a rectangular recess in which the rectangular member is fitted on the top surface of the base, and one or more recesses in which the protrusion is fitted on the bottom surface of the rectangular member. to do.
According to the seventh means, the seat can be slid and fixed at a predetermined slid position in the left-right direction.

As an eighth means for solving the above problems, the present invention provides any one of the fifth to seventh means, wherein the disc or the curved member or the rectangular member on the lower surface of the sheet is arranged at the edge of the bottom surface. a seat-side flange is provided along the edge of the base, and the disk recess, the curved recess, or the rectangular recess on the upper surface of the base is provided with a base-side flange that fits into the seat-side flange along the edge of the upper surface opening. is to provide
According to the eighth means, it is possible to prevent the seat from coming off the base when the seat rotates, reclines, or slides.

According to the present invention, when the seat rotates, reclines, or slides with respect to the base, the same operation can be performed by operating any one of the plurality of operation members. Further, since any one of the plurality of operation members is arranged near the operator, the operability is good, and a plurality of seat operations can be realized while reducing the number of parts of the operation members. Furthermore, when both (both hands) of a plurality of operation members are operated, a different operation can be realized than when one of the operation members (one hand) is operated.

FIG. 10 is an explanatory diagram of operations of two operation members when they are not operated; FIG. 11 is an explanatory diagram of operation when one of the two operation members is operated; FIG. 11 is an explanatory diagram of operation when one of the two operation members is operated; FIG. 10 is an explanatory diagram of operations when both two operation members are operated; 4 is a table showing correspondence between one-handed operation and two-handed operation of two operation members; 1 is an exploded perspective view of a rotating child seat; FIG. Fig. 2 is a perspective view of a rotating child seat base (one recess); 1 is a perspective view of a rotating child seat facing the front of the seat; FIG. Fig. 2 is a side cross-sectional view of the rotating child seat facing the front of the seat; 1 is a perspective view of a rotating child seat facing the back of the seat; FIG. Fig. 2 is a side cross-sectional view of the rotating child seat facing the back of the seat; 1 is an exploded perspective view of a reclining child seat; FIG. Fig. 2 is a perspective view of the base (one recess) of the reclining child seat; Fig. 2 is a perspective view of the reclining child seat as seen from the rear side; 1 is a perspective view of a reclining child seat facing the front of the seat. FIG. Fig. 2 is a side cross-sectional view of the reclining child seat facing the front of the seat; Fig. 2 is a perspective view of a reclining child seat moved from a fixed position to a reclining position; Fig. 2 is a side cross-sectional view of the reclining child seat moved from the fixed position to the reclining position; 1 is an exploded perspective view of a sliding child seat; FIG. Fig. 2 is a perspective view of the base (one recess) of the sliding child seat; Fig. 2 is a perspective view of the fixed position of the sliding child seat; Fig. 3 is a cross-sectional front view of the fixed position of the sliding child seat; FIG. 4 is a perspective view of a sliding child seat that has been slid from a fixed position; Fig. 2 is a front cross-sectional view of a child seat that slides and moves from a fixed position; 1 is an exploded perspective view of a child seat that can be operated with one hand (rotation) and with both hands (sliding) with two operation members; FIG. 1 is a perspective view of a child seat that is operated by one hand (rotation) and two hands (slide) with two operation members when not operated. FIG. FIG. 2 is a side cross-sectional view of a child seat that can be operated with one hand (rotation) and with both hands (sliding) with two operation members when not operated. Fig. 2 is a front cross-sectional view of a child seat that can be operated with one hand (rotation) and with both hands (sliding) with two operation members when not operated. FIG. 2 is a perspective view of a fixed position of a base of a child seat that can be operated with one hand (rotation) and with two hands (sliding) with two operating members; FIG. 2 is a side cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (sliding) with two operating members during one-handed operation. FIG. 2 is a front cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (sliding) with two operating members during one-handed operation. FIG. 10 is a perspective view of the base of the child seat that operates with one hand (rotation) and two hands (sliding) with two operating members. FIG. 11 is a perspective view of a child seat in one-handed operation, in which two operating members are used for one-handed operation (rotation) and two-handed operation (sliding). FIG. 10 is a perspective view of the base of the child seat that operates with one hand (rotation) and two hands (sliding) with two operating members. FIG. 2 is a side cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (sliding) with two operating members when being operated with both hands. FIG. 2 is a front cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (sliding) with two operating members when being operated with both hands. FIG. 10 is a perspective view of the base of the child seat that is operated with one hand (rotation) and operated with both hands (sliding) with two operating members when operated with both hands. FIG. 10 is a front cross-sectional view of a child seat that is operated with one hand (rotation) and operated with both hands (sliding) by two operating members when the child seat is slid with both hands. FIG. 4 is a perspective view of the base when the child seat is slidably moved by two-handed operation of the child seat that is operated by one-handed operation (rotation) and two-handed operation (slide) with two operation members. 1 is an exploded perspective view of a child seat that can be operated with one hand (rotation) and with both hands (reclination) using two operating members; FIG. Fig. 2 is a perspective view of a child seat facing the back of the seat, which can be operated with one hand (rotation) and with both hands (reclination) with two operating members. 1 is a perspective view of a child seat that can be operated with one hand (rotation) and with both hands (reclination) with two operating members when not operated. FIG. FIG. 2 is a side cross-sectional view of a child seat that is operated with one hand (rotation) and two hands (recline) with two operating members when not operated. FIG. 11 is a perspective view of a child seat that is operated with one hand (rotating) and operated with both hands (reclining) with two operating members when being operated with one hand. FIG. 2 is a side cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (reclining) with two operating members during one-handed operation. FIG. 11 is a perspective view of a child seat that is operated with one hand (rotating) and operated with both hands (reclining) with two operating members when being operated with both hands. FIG. 2 is a side cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (reclining) with two operating members when being operated with both hands. 1 is an exploded perspective view of a child seat that can be operated with one hand (reclining) and with both hands (sliding) using two operating members; FIG. Fig. 2 is a front perspective view of a child seat that can be operated with one hand (reclining) and with both hands (sliding) with two operating members. 1 is a perspective view of a child seat that is operated with one hand (reclining) and with both hands (sliding) with two operating members when not operated. FIG. FIG. 2 is a side cross-sectional view of a child seat that can be operated with one hand (reclining) and with both hands (sliding) with two operating members when not operated. FIG. 10 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (sliding) with two operating members when operated with one hand. FIG. 2 is a side cross-sectional view of a child seat that is operated with one hand (reclining) and operated with both hands (sliding) using two operating members. FIG. 10 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (sliding) with two operating members when operated with both hands. FIG. 2 is a front cross-sectional view of a child seat in which two operating members are used for one-handed operation (reclining) and two-handed operation (sliding). 1 is an exploded perspective view of a child seat that can be operated with one hand (reclining) and with two hands (rotating) using two operating members; FIG. 1 is a front perspective view of a child seat that can be operated with one hand (reclining) and with both hands (rotating) with two operating members; FIG. 1 is a perspective view of a child seat that can be operated with one hand (reclining) and with both hands (rotating) with two operating members when not operated. FIG. FIG. 2 is a side cross-sectional view of a child seat that can be operated with one hand (reclining) and with both hands (rotating) with two operating members when not operated. 1 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members when operated with one hand; FIG. FIG. 2 is a side cross-sectional view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members. 1 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members when operated with both hands; FIG. FIG. 2 is a side cross-sectional view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members when operated with both hands. 1 is an exploded perspective view of a child seat that can be operated with one hand (slide) and operated with both hands (rotation) with two operating members; FIG. 1 is a perspective view of a child seat that can be operated with one hand (slide) and operated with both hands (rotation) with two operating members when not operated. FIG. 1 is a front cross-sectional view of a child seat that can be operated with one hand (slide) and operated with both hands (rotation) with two operating members when not operated; FIG. FIG. 11 is a perspective view of a child seat in one-handed operation, in which two operating members are used for one-handed operation (rotation) and two-handed operation (sliding). FIG. 2 is a front cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (sliding) with two operating members during one-handed operation. FIG. 10 is a perspective view of a child seat that can be operated with one hand (rotation) and operated with both hands (sliding) with two operating members when operated with both hands. FIG. 2 is a front cross-sectional view of a child seat that is operated with one hand (rotating) and operated with both hands (sliding) with two operating members when being operated with both hands. 1 is an exploded perspective view of a child seat that can be operated with one hand (sliding) and with both hands (reclining) using two operating members; FIG. 1 is a perspective view of a child seat that is operated with one hand (sliding) and two hands (reclining) with two operating members when not operated. FIG. 1 is a front cross-sectional view of a child seat that is operated with one hand (slide) and two hands (reclined) with two operating members when not operated; FIG. FIG. 11 is a perspective view of a child seat that is operated with one hand (sliding) and operated with both hands (reclining) with two operating members when being operated with one hand. FIG. 2 is a front cross-sectional view of a child seat that is operated with one hand (sliding) and operated with both hands (reclining) with two operating members when operated with one hand. FIG. 10 is a perspective view of a child seat that is operated with one hand (sliding) and operated with both hands (reclining) with two operating members when being operated with both hands. FIG. 2 is a side cross-sectional view of a child seat that is operated with one hand (sliding) and operated with both hands (reclining) with two operating members when being operated with both hands. FIG. 11 is an explanatory diagram of operations of two operation members of a modified example when they are not operated; FIG. 11 is an explanatory diagram of operation when one of the two operation members of the modified example is operated; FIG. 11 is an explanatory diagram of operation when one of the two operating members of the modified example is operated; FIG. 11 is an explanatory diagram of the operation when both two operating members are operated in the modified example;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a child seat according to the present invention will be described in detail below with reference to the drawings. In this embodiment, the front-rear direction (front/rear) indicates the front/rear direction of the vehicle, and the left-right direction indicates the door side direction of the vehicle.
The child seat 10 of the present invention includes a seat 12 on which an infant sits, a reclining seat 12 attached to a vehicle seat, the seat 12 rotating around the central axis of the origin position, and the seat 12 reclining at different tilt angles from the origin position of the seat 12. A base 14 is provided for supporting one or more of the slides that move linearly, such as in the left-right direction.

[Basic structure of operation member]
FIG. 1 is an explanatory diagram of operations of two operation members when they are not operated. FIG. 2 is an explanatory view of operation when one of the two operation members is operated. FIG. 3 is an explanatory diagram of the operation when one of the two operating members is operated. FIG. 4 is an explanatory diagram of the operation when both of the two operating members are operated.
The child seat 10 of the present invention includes a convex portion 20 that is biased to project from the bottom surface of the seat 12 toward a concave portion of the base 14 to engage and fix the seat 12 to the base 14;
It has a plurality of operation members 30 which are connected to the convex portion 20 and can be operated in the anti-biasing direction to reduce the amount of projection of the convex portion 20 from the bottom surface of the seat 12 . In this embodiment, as an example, the configuration of two operating members 30 will be described below. Note that the number of operation members is not limited to this, and may be two or more.
The protrusion 20 is pinned to the bridge 22 . The projection 20 shown in FIGS. 1-4 is rotatably connected to the center of a rod-shaped bridge 22 . Both ends of the bridge 22 are connected to wires 32 that serve as connection members that are connected to the operation member 30 . Incidentally, the connection member is not limited to wires, and various cord-like bodies (such as cords) can be applied. Two urging means 24 are provided on the bridge 22 between the protrusion 20 pin-connected to the bridge 22 and the wire 32 connected to the bridge 22 . The biasing means 24 shown in FIGS. 1-4 employs a compression spring. The protrusion 20, the bridge 22 and the biasing means 24 are all arranged in a casing below the seat 12. As shown in FIG. The convex portion 20 and the bridge 22 are integrally attached to an elongated hole that is vertically slidable. Further, the biasing means 24 biases the bridge 22 downward. When the operating member 30 is in an unoperated state, the convex portion 20 protrudes to the maximum (maximum value) from the opening 26 provided on the bottom surface of the seat 12 (see FIG. 1).

The operating member 30 connected to the wire 32 is in the form of an operating lever in this embodiment. By operating the lever, the wire 32 is pulled up, and a force in the anti-biasing direction acts on the bridge 22, so that the bridge 22 can be pushed up. As the bridge 22 is pushed up, the pin-connected protrusion 20 is also pushed up. 2 and 3 are pin-connected at the center of the bridge 22, the retraction amount of the two operation members 30 is the same, and no matter which one of the two operation members 30 is operated (with one hand), The amount of protrusion from the bottom surface of the seat 12 is reduced to half, in other words, the amount of protrusion is between the maximum value and 0, which will be described later.

When operating the two operating members 30 (operating with both hands), the bridge 22 and the protrusions 20 are pushed up in the anti-biasing direction, and the amount of projection of the protrusions 20 is reduced compared to when operating with one hand. The amount of projection of the projection 20 from the bottom surface of the seat 12 is set to 0 when operated with both hands (see FIG. 4).
FIG. 5 is a table showing the correspondence between one-handed operation and two-handed operation of two operating members. Seat operations that can be realized by one-handed operation and two-handed operation by two operation members are combined as shown in FIG.
Rotation, reclining, and sliding motions of the seat 12 can be realized by one-handed operation, in other words, operation of either of the two operating members 30, and rotation, reclining, and sliding of the seat 12 can be realized by two-handed operation, in other words, operation of both of the two operating members. The operation can be realized, and there are 6 patterns of combinations (marked circles in the table).

[Example of one-handed operation]
A configuration of the child seat 10 in which the seat 12 can rotate, recline, or slide regardless of which one of the two operating members is operated (one-handed operation) will be described below.
(rotate)
FIG. 6 is an exploded perspective view of a rotating child seat. FIG. 7 is a perspective view of a rotating child seat base (one recess). FIG. 8 is a perspective view of a rotating child seat facing the front of the seat. FIG. 9 is a side cross-sectional view of the rotating child seat facing the front of the seat. FIG. 10 is a perspective view of the rotating child seat facing the back of the seat. FIG. 11 is a side cross-sectional view of the rotating child seat facing the back of the seat. The rotation structure includes a disc 40, a flanged rotating shaft 42, and a protrusion 20 protruding from the disc 40 on the lower surface of the seat 12, and a disc recess 50 in which the disc 40 is fitted on the upper surface of the base 14, and a protrusion on the bottom surface of the disc recess 50. 20 and a shaft hole 54 into which a rotary shaft with a flange is fitted. In this embodiment, the seat 12 cannot be removed from the base 14 by setting the diameter of a portion of the shaft hole 54 into which the flanged rotary shaft 42 is fitted to be smaller than the diameter of the flange, by the assembly method, and by making the flange a separate part (separate structure). showing the structure. Two operating levers serving as operating members 30 are arranged on the left and right side surfaces of the seat 12 . One or more recesses 52 into which the projections 20 are fitted are provided at positions where the seat 12 faces forward and backward (see FIG. 6, there are two recesses 52). Note that it is only necessary to provide one concave portion 52 (for example, at a position where the seat 12 faces forward) (see FIG. 7). The two operating members 30 and the projection 20 employ the configuration shown in FIGS. 1-4. The child seat 10 having such a configuration can be rotated to any desired position, for example forward (front) or backward (rear) in this embodiment, by operating either of the left and right operation members 30 . Orientation can also be fixed.

(reclining)
FIG. 12 is an exploded perspective view of a reclining child seat. FIG. 13 is a perspective view of a reclining child seat base (one recess). FIG. 14 is a perspective view of the reclining child seat as seen from the rear side. FIG. 15 is a perspective view of a reclining child seat facing the front of the seat. FIG. 16 is a side cross-sectional view of the reclining child seat facing the front of the seat. FIG. 17 is a perspective view of a reclining child seat moved from a fixed position to a reclining position. FIG. 18 is a side cross-sectional view of a reclining child seat moved from a fixed position to a reclining position. The reclining structure includes a flanged curved member 60 on the lower surface of the seat 12, a convex portion 20 projecting from the flanged curved member 60, and a flanged curved recess 70 in which the flanged curved member 60 fits on the upper surface of the base 14, and a flanged curved portion. The bottom surface of the recess 70 is provided with one or more recesses 72 in which the protrusions 20 are fitted. One or more (three in FIGS. 12 and 14 to 18) linear recesses 72 in which the protrusions 20 are fitted are provided in the front-rear direction of the base 14 . It is sufficient to provide one concave portion 72 (for example, the position where the seat 12 is fixed) (see FIG. 13). Two operation levers serving as operation members 30 are arranged in front of the seat portion and in the upper portion of the back portion of the seat 12 . The two operating members 30 and the projection 20 employ the configuration shown in FIGS. 1-4. The flanged curved member 60 and the flanged curved concave portion 70 are configured so that they do not come off (the seat 12 cannot be removed from the base 14) due to the fitting structure of the flanges. With the child seat 10 having such a structure, the seat 12 can be reclined by operating either of the two operation members 30, and fixed at a predetermined angle of inclination.

(slide)
FIG. 19 is an exploded perspective view of a sliding child seat. FIG. 20 is a perspective view of a sliding child seat base (one recess). FIG. 21 is a perspective view of the fixed position of the sliding child seat. FIG. 22 is a cross-sectional front view of the fixed position of the sliding child seat. FIG. 23 is a perspective view of a sliding child seat slid from a fixed position. FIG. 24 is a front cross-sectional view of a sliding child seat that has been slid from a fixed position. The slide structure includes a flanged rectangular member 80 and a projection 20 projecting from the flanged rectangular member 80 on the bottom surface of the seat 12, and a flanged rectangular recessed portion 90 in which the flanged rectangular member 80 is fitted and a flange on the top surface of the base 14. The bottom surface of the rectangular recess 90 has one or more recesses 92 into which the projections 20 fit. One or more (three in FIGS. 19 and 21 to 24) recesses 92 in which the projections 20 are fitted are provided linearly in the lateral direction of the base 14 . Note that it is only necessary to provide one concave portion 92 (for example, the fixing position of the seat 12) (see FIG. 20). The flanged rectangular member 80 and the flanged rectangular concave portion 90 are configured so that they do not come off (the seat 12 cannot be removed from the base 14) due to the fitting structure of the flanges. Two operating levers serving as operating members 30 are arranged on the left and right side surfaces of the seat 12 . The two operating members 30 and the projection 20 employ the configuration shown in FIGS. 1-4. With the child seat 10 having such a structure, the seat 12 can be slid by operating either one of the left and right operation members 30 and fixed at a predetermined slid position in the left-right direction. In addition, in a configuration in which one recess 92 is provided at the fixed position, when the seat 12 slides out of the fixed position, there is no recess 92 and the seat is not fixed. When the vehicle door is closed in this state, the seat 12 can be easily slid and prevented from being damaged even if it collides with the door.

[Example of one-handed operation and two-handed operation]
A configuration of the child seat 10 in which the first operation of the seat 12 can be performed by operating the operating member 30 with one hand and the second operation of the seat 12 can be performed by operating the operating member 30 with both hands will be described below.
(rotation - slide)
FIG. 25 is an exploded perspective view of a child seat that can be operated with one hand (rotating) and operated with both hands (sliding) with two operating members. FIG. 26 is a perspective view of a child seat that can be operated with one hand (rotation) and with both hands (sliding) with two operation members when not operated. FIG. 27 is a cross-sectional side view of a child seat that can be operated with one hand (rotation) and with both hands (sliding) with two operating members when not operated. FIG. 28 is a cross-sectional front view of a child seat that can be operated with one hand (rotation) and with both hands (sliding) with two operating members when not operated. FIG. 29 is a perspective view of the fixing position of the base of the child seat that can be operated with one hand (rotation) and with both hands (sliding) with two operating members. FIG. 30 is a cross-sectional side view of a child seat in which two operating members are operated with one hand (rotation) and with both hands (sliding) when operated with one hand. FIG. 31 is a front cross-sectional view of a child seat in which two operating members are operated with one hand (rotating) and operated with both hands (sliding) with one hand. FIG. 32 is a perspective view of the base of the child seat in which two operating members are operated with one hand (rotating) and operated with both hands (sliding) with one hand. FIG. 33 is a perspective view of a child seat rotating with two operating members for one-handed operation (rotation) and two-handed operation (sliding). FIG. 34 is a perspective view of the base at the time of rotating operation of the child seat that is operated with one hand (rotation) and with both hands (sliding) with two operation members. FIG. 35 is a cross-sectional side view of a child seat that is operated with one hand (rotation) and operated with both hands (sliding) with two operating members when operated with both hands. FIG. 36 is a cross-sectional front view of a child seat in which two operating members are operated with one hand (rotation) and with both hands (sliding) at the time of both-hands operation. FIG. 37 is a perspective view of the base of the child seat in which two operating members are used for one-handed operation (rotation) and two-handed operation (sliding). FIG. 38 is a front cross-sectional view of a child seat that operates with one hand (rotation) and two hands (sliding) with two operating members when sliding with both hands. FIG. 39 is a perspective view of the base at the time of slide movement by two-handed operation of a child seat that operates one-handed (rotation) and two-handedly (slidable) with two operating members. A disk 40A with a flange on the lower surface of the seat 12, a convex portion 20 and a T-shaped member 28 projecting from the disk 40A with the flange, and a rectangular recess 90 in which the disk 40A with the flange is fitted on the upper surface of the base 14, and a projection on the bottom surface of the rectangular recess 90. It includes one or more T-shaped recesses 94 in which the portion 20 and the T-shaped member 28 fit. One or more T-shaped recesses 94 are formed in the horizontal direction (three in FIG. 22, one in other cases). The rectangular concave portion 90 is provided with a flange 91 on the upper edge so that the disk 40A with the flange cannot come off (the seat 12 cannot be attached or detached from the base 14). The T-shaped member 28 is formed along the front-rear direction of the seat 12 . Two operating levers serving as operating members 30 are arranged on the left and right side surfaces of the seat 12 . The two operating members 30, the convex portion 20 and the T-shaped member 28 adopt the configuration shown in FIGS. 1-4. The convex portion 20 is formed to protrude from the upper surface of the T-shaped member 28, and when the operating member 30 is not operated, the convex portion 20 and the T-shaped member 28 are fitted in the central T-shaped concave portion 94 among the plurality of them, A seat 12 is secured to the base 14 (fixed position, see FIGS. 26-29). In one-handed operation, the projecting amounts of the convex portion 20 and the T-shaped member 28 are reduced, the T-shaped member 28 is removed from the T-shaped concave portion 94, and only the convex portion 20 is fitted in the T-shaped concave portion 94 (Fig. 30-32). In two-handed operation, the amount of projection of the projection 20 and the T-shaped member 28 is further reduced, and the projection 20 is also disengaged from the T-shaped recess 94 (see FIGS. 35-37).
The child seat having such a structure can be fixed at an arbitrary position, for example, facing forward (front) or facing backward (rear) by rotating the seat 12 by operating either of the operating members (one-handed operation). Also, by operating with both hands, the seat 12 can be slid and fixed at a predetermined slid position in the horizontal direction.

(Rotation - Reclining)
FIG. 40 is an exploded perspective view of a child seat that can be operated with one hand (rotation) and with both hands (reclination) using two operating members. FIG. 41 is a perspective view of a child seat facing the back of the seat that can be operated with one hand (rotation) and with both hands (reclination) with two operating members. FIG. 42 is a perspective view of a child seat that can be operated with one hand (rotation) and with both hands (reclination) with two operating members when not operated. FIG. 43 is a cross-sectional side view of a child seat that operates with one hand (rotation) and two hands (reclines) with two operating members when not operated. FIG. 44 is a perspective view of a child seat that operates with one hand (rotation) and with both hands (reclines) with two operating members when operated with one hand. FIG. 45 is a cross-sectional side view of a child seat that operates with one hand (rotating) and with two hands (reclining) with two operating members during one-handed operation. FIG. 46 is a perspective view of a child seat that can be operated with one hand (rotating) and operated with both hands (reclining) with two operating members when operated with both hands. FIG. 47 is a cross-sectional side view of a child seat that is operated with one hand (rotating) and operated with both hands (reclining) with two operating members when operated with both hands. A curved disk 100 on the lower surface of the seat 12, a convex portion 20 and a T-shaped member 28 protruding from the curved disk 100, a rotating shaft 42 with a flange, and a curved disk recess 110 in which the curved disk 100 is fitted on the upper surface of the base 14, and a curved disk recess. The bottom surface of 110 is provided with one or more T-shaped shaft holes 112 in which the convex portion 20 and the T-shaped member 28 and flanged rotating shaft 42 are fitted. A portion of the T-shaped shaft hole 112 into which the flanged rotary shaft 42 fits is set smaller in diameter than the flange diameter so that the flanged rotary shaft cannot come off (the seat 12 cannot be removed from the base 14). One or more projections 20 and T-shaped shaft holes 112 into which the flanged rotary shafts 42 are fitted are provided linearly in the front-rear direction of the base 14 (three in FIGS. 40-47). Two operation levers serving as operation members 30 are arranged in front of the seat portion and in the upper portion of the back portion of the seat 12 . The T-shaped member 28 is formed along the front-rear direction of the seat 12 . The two operating members 30, the convex portion 20 and the T-shaped member 28 adopt the configuration shown in FIGS. 1-4. It should be noted that the rotary shaft 42 with the flange is not vertically moved by the operation member while being fixed to the seat 12, and the convex portion 20 and the T-shaped member 28 are vertically moved. With the child seat 10 having such a structure, the seat 12 can be rotated with the T-shaped member 28 disengaged from the T-shaped shaft hole 112 and the protrusion 20 fitted, regardless of which of the two operating members 30 is operated. position, for example forward (front) facing or rearward (rear) facing positions (see FIGS. 44 and 45). Further, by operating with both hands, the T-shaped member 28 and the projection 20 can be removed from the T-shaped shaft hole 112, and the seat 12 can be reclined and fixed at a predetermined tilt angle position (see FIGS. 46 and 47).

(Reclining - Slide)
FIG. 48 is an exploded perspective view of a child seat that can be operated with one hand (reclining) and with both hands (sliding) with two operating members. FIG. 49 is a front perspective view of a child seat that can be operated with one hand (reclining) and with both hands (sliding) with two operating members. FIG. 50 is a perspective view of a child seat that can be operated with one hand (reclining) and with both hands (sliding) with two operating members when not operated. FIG. 51 is a cross-sectional side view of a child seat that can be operated with one hand (reclining) and with both hands (sliding) with two operating members when not operated. FIG. 52 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (sliding) with two operating members at the time of one-handed operation. FIG. 53 is a cross-sectional side view of a child seat that operates with one hand (reclining) and with both hands (sliding) with two operating members during one-handed operation. FIG. 54 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (sliding) with two operating members when operated with both hands. FIG. 55 is a cross-sectional front view of a child seat that is operated with one hand (reclining) and operated with both hands (sliding) with two operating members when operated with both hands. A flanged curved rectangular member 120 on the lower surface of the seat 12, a convex portion 20 protruding from the flanged curved rectangular member 120, and a flanged curved rectangular recess 130 in which the flanged curved rectangular member 120 is fitted on the upper surface of the base 14, and a flanged curved portion. The bottom surface of the rectangular recess 130 is provided with one or more recesses 132 and an I-shaped recess 134 in which the protrusions 20 are fitted. One or more concave portions 132 (three in FIGS. 48 to 55) are provided linearly in the lateral direction of the base 14, in which the convex portion 20 is fitted. The I-shaped recesses 134 into which the projections 20 are fitted are provided linearly in the front-rear direction of the base 14 (three in FIGS. 48-55). The flanged curved rectangular member 120 and the flanged curved rectangular concave portion 130 are configured so that they do not come off (the seat 12 cannot be removed from the base 14) due to the fitting structure of the flanges. With the child seat 10 having such a structure, the seat 12 can be reclined by operating either one of the two operation members 30, and fixed at a predetermined tilt angle. Also, by operating with both hands, the seat 12 can be slid and fixed at a predetermined slid position in the horizontal direction.

(reclining - rotating)
FIG. 56 is an exploded perspective view of a child seat that can be operated with one hand (reclining) and with both hands (rotating) with two operating members. FIG. 57 is a perspective view of a child seat that can be operated with one hand (reclining) and with both hands (rotating) with two operating members, facing the front of the seat. FIG. 58 is a perspective view of a child seat that can be operated with one hand (reclining) and with both hands (rotating) with two operating members when not operated. FIG. 59 is a cross-sectional side view of a child seat that can be operated with one hand (reclining) and with both hands (rotating) with two operating members when not operated. FIG. 60 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members when operated with one hand. FIG. 61 is a cross-sectional side view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members when operated with one hand. FIG. 62 is a perspective view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members when operated with both hands. FIG. 63 is a cross-sectional side view of a child seat that can be operated with one hand (reclining) and operated with both hands (rotating) with two operating members when operated with both hands.
The child seat shown in Figures 56-62 is of substantially the same construction as the child seat shown in Figures 40-47.
With the child seat 10 having such a structure, the T-shaped member 28 is disengaged from the T-shaped shaft hole 112 and the convex portion 20 is fitted in whichever of the two operating members 30 is operated. can be fixed at the tilt angle position (see FIGS. 60 and 61). Further, by operating with both hands, the T-shaped member 28 and the convex portion 20 can be removed from the T-shaped shaft hole 112 and the seat 12 can be rotated and fixed at an arbitrary position, for example, facing forward (front) or backward (rear). 62 and 63). In this manner, when both (both hands) of a plurality of operation members are operated, a different operation can be realized than when one of the operation members (one hand) is operated.

(slide - rotate)
FIG. 64 is an exploded perspective view of a child seat that can be operated with one hand (sliding) and with both hands (rotating) with two operating members. FIG. 65 is a perspective view of a child seat that can be operated with one hand (sliding) and with both hands (rotating) with two operating members when not operated. FIG. 66 is a cross-sectional side view of a child seat that can be operated with one hand (slide) and operated with both hands (rotation) with two operating members when not operated. FIG. 67 is a perspective view of a child seat in which two operating members can be operated with one hand (rotation) and with both hands (sliding) when operated with one hand. FIG. 68 is a front cross-sectional view of a child seat that operates with one hand (rotation) and two-hand operation (sliding) with two operating members when operated with one hand. FIG. 69 is a perspective view of a child seat that can be operated with one hand (rotating) and operated with both hands (sliding) with two operating members when operated with both hands. FIG. 70 is a cross-sectional front view of a child seat in which two operating members are operated with one hand (rotation) and with both hands (sliding) when operated with both hands. The child seat shown in Figures 64-70 is substantially the same as the child seat shown in Figures 25-39, but differs in the configuration of the T-shaped member 28A and the T-shaped recess 94A. The T-shaped member 28A is formed along the lateral direction of the seat.
With the child seat 10 having such a structure, the seat 12 can be slid and fixed at a predetermined slid position in the left-right direction by operating either one of the operation members 30 (one-handed operation). Also, the seat 12 can be rotated and fixed in any desired position, for example, facing forward (front) or rearward (rear) by a two-handed operation. Furthermore, when both (both hands) of a plurality of operation members are operated, a different operation can be realized than when one of the operation members (one hand) is operated.

(slide-recline)
FIG. 71 is an exploded perspective view of a child seat that can be operated with one hand (sliding) and with both hands (reclining) with two operating members. FIG. 72 is a perspective view of a child seat that can be operated with one hand (sliding) and with both hands (reclining) with two operating members when not operated. FIG. 73 is a cross-sectional front view of a child seat that operates with one hand (sliding) and two hands (reclining) with two operating members when not operated. FIG. 74 is a perspective view of a child seat that operates with one hand (sliding) and with both hands (reclining) with two operating members when operated with one hand. FIG. 75 is a front cross-sectional view of a child seat in which two operating members are operated with one hand (sliding) and with both hands (reclining) at the time of one-handed operation. FIG. 76 is a perspective view of a child seat that is operated with one hand (sliding) and operated with both hands (reclining) with two operating members when operated with both hands. FIG. 77 is a cross-sectional side view of a child seat that is operated with one hand (sliding) and operated with both hands (reclining) with two operating members when operated with both hands.
The child seat shown in FIGS. 71-77 is substantially the same as the child seat shown in FIGS. 48-55, but differs in the configuration of the I-shaped recess 134A. One or more (three in FIGS. 71 to 77) I-shaped recesses 134A into which the projections 20 are fitted are provided in a straight line in the left-right direction of the base 14. As shown in FIG.
With the child seat 10 having such a structure, the seat 12 can be slid by operating either one of the two operation members 30, and can be fixed at a predetermined slid position in the left-right direction. Further, the seat 12 can be reclined and fixed at a predetermined tilt angle position by operating with both hands. Furthermore, when both (both hands) of a plurality of operation members are operated, a different operation can be realized than when one of the operation members (one hand) is operated.

[Modified example of operation member]
(offset)
78A and 78B are diagrams for explaining the operation of the two operating members of the modified example when they are not operated. 79A and 79B are diagrams for explaining the operation when one of the two operating members of the modified example is operated. 80A and 80B are explanatory diagrams of the operation when the other of the two operating members of the modified example is operated. FIG. 81 is an explanatory view of operation when both two operating members are operated in the modified example. As an example, the convex portion 20 of the present embodiment is pin-connected at a position offset by a ratio of 1:2 in the longitudinal direction of the bridge 22 . As for the two operation members 30 (lever A and lever B), the lever B is arranged on the ratio 1 side and the lever A is arranged on the ratio 2 side.
When the two operating members 30 are not operated, the convex portion 20 is in a state (maximum value) protruding from the opening 26 provided on the bottom surface of the seat 12 (see FIG. 78).
When the two operating members 30 are operated (operated with both hands), the bridge 22 and the protrusions 20 are pushed up in the anti-biasing direction, and the amount of protrusion of the protrusions 20 from the lower surface of the seat 12 is set to zero. (see Figure 81).
When the two operating members 30 are operated with one hand, the projection 20 is pin-connected to the bridge 22 at an offset position. Since the distance between the pin connection position of the portion 20 and the connection position of the wire 32 of the levers A and B is different, the projection amount of the convex portion 20 due to the operation of the lever B closer to the pin connection position is greater than that of the lever farther from the pin connection position. It is smaller than the protrusion amount of the convex portion 20 by the operation of A. Therefore, one-handed operation by lever A and one-handed operation by lever B differ in the reduction amount of the convex portion 20, resulting in a difference in the amount of projection (see FIGS. 79 and 80).

According to the present invention, when the seat rotates, reclines, or slides relative to the base, the same operation can be performed by operating either of the two operating members. Further, one of the two operation members is arranged near the operator, so that the operability is good, and a plurality of seat operations can be realized while reducing the number of parts of the operation member. Furthermore, when both (both hands) of a plurality of operation members are operated, a different operation can be realized than when one of the operation members (one hand) is operated.
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present invention.
Moreover, the present invention is not limited to the combinations shown in the embodiments, and can be implemented in various combinations.

10 Child seat 12 Seat 14 Base 20 Projection 22 Bridge 24 Biasing means 26 Openings 28, 28A T-shaped member 30 Operation member 32 Wire 40 Disk 40A Disk with flange 42 Rotary shaft with flange 50 Disk recess 52 Recess 54 Shaft hole 60 With flange curved member 70 curved recess 72 with flange recess 80 rectangular member with flange 90 rectangular recess 91 with flange flange 92 recess 94, 94A T-shaped recess 100 curved disk 110 curved disk recess 112 T-shaped shaft hole 120 curved rectangular member 130 with flange flanged curved rectangular recess 132 recesses 134, 134A I-shaped recess

Claims (8)

Supports any one of a seat on which an infant sits, a seat attached to a vehicle seat that rotates around an axis, a reclining position in which the seat reclines to a different angle of inclination, and a sliding position in which the seat moves linearly. A child seat with a base for
a convex portion biased to project from the lower surface of the seat toward the concave portion of the base and engaged therewith to fix the seat to the base;
having a plurality of operating members connected to the convex portion and capable of reducing the amount of projection of the convex portion from the bottom surface of the seat by being operated in the anti-biasing direction;
The amount of protrusion of the convex portion from the bottom surface of the seat is reduced even when any one of the plurality of operating members is operated, and the seat can perform any one of rotating, reclining, and sliding operations. child seat. A seat on which an infant is seated, a seat attached to a vehicle seat to rotate around an axis, reclining to recline at a different angle of inclination, and sliding to move the seat linearly. A child seat with a base,
a convex portion biased to project from the lower surface of the seat toward the concave portion of the base and engaged therewith to fix the seat to the base;
having a plurality of operating members connected to the convex portion and capable of reducing the amount of projection of the convex portion from the bottom surface of the seat by being operated in the anti-biasing direction;
When all of the plurality of operating members are operated, the amount of projection of the convex portion from the bottom surface of the seat becomes 0 from the maximum value, and the seat rotates, reclines, or slides. do it,
Even when any one of the plurality of operation members is operated, the amount of projection of the convex portion from the bottom surface of the seat decreases from a maximum value to 0, and the seat rotates, reclines, or slides. A child seat characterized by being able to perform either one of the movements. A child seat according to claim 1 or 2,
A bridge pin-connected to the convex portion is provided, and the plurality of operation members are connected to both ends of the bridge via connecting members, and the convex portion and the bridge slide integrally in the vertical direction under the seat. A child seat, characterized in that: A child seat according to claim 3,
A child seat according to claim 1, wherein said protrusion is pin-connected at a position offset from the longitudinal center of said bridge. A child seat according to any one of claims 1 to 4,
The rotating structure of the seat includes a disk on the lower surface of the seat and the protrusions protruding from the disk, and the recessed disk on the upper surface of the base in which the disk fits and one or more recesses in which the protrusions fit. A child seat characterized by comprising: A child seat according to any one of claims 1 to 4,
The seat reclining structure includes a curved member on the lower surface of the seat and the convex portion protruding from the curved member, a curved concave portion in which the curved member is fitted on the upper surface of the base, and the convex portion on the bottom surface of the curved member. Child seat, characterized in that it comprises one or more said recesses into which parts fit. A child seat according to any one of claims 1 to 4,
The slide structure of the seat includes a rectangular member on the bottom surface of the seat and the convex portion projecting from the rectangular member, a rectangular concave portion in which the rectangular member fits on the upper surface of the base, and the convex portion on the bottom surface of the rectangular member. Child seat, characterized in that it comprises one or more said recesses into which parts fit. A child seat according to any one of claims 5 to 7,
The disc or the curved member or the rectangular member on the lower surface of the seat is provided with a seat-side flange along the edge of the bottom surface, and the disc recess or the curved recess or the rectangular recess on the top surface of the base is provided on the edge of the top opening. A child seat comprising a base-side flange fitted along said seat-side flange.

Images