JP4841722B2 - stroller - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stroller, and more particularly to a stroller in which a child seat is detachable.
[0002]
[Prior art and problems to be solved by the invention]
In general, a child seat is used when an infant such as a child under 1 year old is put on a passenger car. There are two types of child seats: one that attaches and fixes the child seat to a saddle-like member provided in the passenger car seat, and one that uses the seat belt of the seat to fix the child seat to the seat. The child seat is removable from the seat.
[0003]
Thus, when the child seat is removed from the seat of the passenger car, the child seat can be used as a carry for moving the infant while lying on the child seat, or placed on the floor and used as a rocking chair or a normal chair. By the way, there is also a proposal that uses the child seat as a baby stroller seat. In this case, the baby stroller body is relatively large, and the child seat is attached to the baby stroller body as a dedicated attachment. And parts are necessary, and there are problems such as troublesome attachment / detachment and a large number of parts. Further, since the stroller body is configured to use the child seat as a dedicated seat, there is a problem that the vehicle body with the child seat removed cannot be used as a stroller.
[0004]
In view of such points, the present invention can securely fix the child seat to the stroller body without requiring a dedicated attachment part or the like, and can function as a stroller even when the child seat is detached from the stroller body. The purpose is to obtain a stroller.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, the bosses protrude outwardly from the outer surfaces of the left and right armrests of the stroller body, and the handle seat case is mounted on the lower side of the child seat so that the handle of the child seat can be pivotally fixed. , a locking device for locking engagement with the boss projecting on the outer surface of the armrest provided with detachable child seat against the stroller body, left and right of the handle attachment case the top and outside of the left and right armrest of the stroller body The child seat is attached to the stroller main body by engaging with it .
[0006]
According to a second aspect of the present invention, in the first aspect of the invention, the locking device is rotatably attached to the child seat and engages with the boss by the rotation to lock the child seat, and always. It has the locking member urged | biased by the locking direction, It is characterized by the above-mentioned.
[0008]
The invention according to claim 3 is the invention according to claim 2, wherein the lock member has a claw portion that engages with a lower portion of the boss, and the lower surface of the claw portion contacts the boss when the child seat is attached. A guide surface for swinging the lock member in the unlocking direction by contact is formed.
[0009]
The invention according to claim 4 is the invention according to claim 2 or 3 , wherein the child seat is engaged with a protrusion provided on the lock member when the lock member is rotated in the unlocking direction, and the lock is locked. A stopper for automatically fixing the member at the unlocking position is provided so as to be swingable about an axis eccentric with respect to the shaft of the lock member.
[0010]
According to a fifth aspect of the present invention, in the invention according to the fourth aspect , the stopper is formed with a stop release rod extending downward, and the child boss is lifted below the stop release rod when the child seat is lifted. An unlocking operation portion is provided that abuts and releases the engagement between the protrusion provided on the lock member and the stopper and automatically returns the lock member from the unlock position.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0012]
FIG. 1 is a perspective view of a stroller body. The stroller body includes a pair of left and right front legs 12 having a front wheel 11, a pair of left and right rear legs 14 having a rear wheel 13, and a hand bar 15 bent in a substantially U shape. , And a pair of left and right armrests 16 and a detachable guard arm 17 spanned between the armrests 16 and 16. One end of the armrest 16 is pivotally attached to the vicinity of the distal ends of the left and right pipes 18 constituting the hand bar 15, and the top end of the front leg 12 is pivotally attached to the other end of each armrest 16. Further, the top end portions of the left and right rear legs 14 are also pivotally attached to the intermediate portion of the armrest 16, and one end of a bracket 19 bent in a square shape is pivotally attached to the intermediate portion of the rear leg 14. And the front-end | tip part of the right and left pipe 18 which comprises the said hand bar 15 is each pivotally attached to the intermediate position of the bracket 19, and it formed in the other end of the said bracket 19 in the expansion | deployment state of the stroller main body. The locking member 20 slidably attached to the lower end portion of the pipe 18 is engaged with the engaging portion, and the unfolded state is maintained.
[0013]
On the other hand, the left and right front legs 12 are connected by a front connection bar 21, and the left and right rear legs 14 are connected by a rear connection bar 22. Furthermore, the front ends of the connecting bars 23 are pivotally attached to the intermediate portions of the front legs 12, and the rear ends of the connecting bars 23 are pivotally attached to the tip ends of the pipes 18 together with the brackets 19. The parts are connected by the upper connection bar 24.
[0014]
Thus, as shown in FIG. 1, the stroller body can be used by engaging the lock member 20 provided at the lower end of the pipe 18 with the engaging portion provided at the upper end of the bracket 19. Retained. On the other hand, when the engagement between the lock member 20 and the bracket 19 is released by operating the operating device 25 provided on the hand bar 15, the armrest 16 and the connecting bar 23 are connected to the pipe 18 and the pivot points. The front leg 12 and the rear leg 14 are swung in a substantially parallel state, and can be folded for convenience of carrying.
[0015]
By the way, the hand barb 15, the front connection bar 21, the rear connection bar 22, and the upper connection bar 24 can be folded by two joints in each intermediate portion in two identical vertical planes. Therefore, when the left and right pipes 18 are moved forward after the front leg 12 and the rear leg 14 are folded so as to be in parallel as described above, the push bar 15, the front side connecting bar 21, the rear side connecting bar 22, and Both sides of the upper connecting bar 24 are folded forward, and the stroller body can be folded more compactly as shown in FIG. That is, it can be folded into a three-fold state.
[0016]
Although the structure of the stroller body is the same as that of the conventional one, in the present invention, a boss 26 protruding outward is provided at the outer intermediate portion of each of the left and right armrests 16. Further, a belt 27 for seat reclining adjustment is detachably attached to an intermediate portion of the left and right pipes 18.
[0017]
FIG. 3 is a perspective view showing the shape of the child seat 30 that can be attached to the stroller body. The child seat 30 is provided with an inverted U-shaped handle 31 so as to be swingable. That is, a handle attachment case 32 is provided on both sides of the child seat 30, and the tip of the handle 31 is inserted into the handle attachment case 32 so as to be swingably fixed. Further, on both outer sides of the seat portion of the child seat 30, there are provided belt guides 33 for fixing the child seat 30 using a seat belt for a passenger car seat.
[0018]
By the way, in the handle attachment case 32, there is provided a lock device 35 that engages with the bosses 26 projecting from the left and right armrests 16 of the stroller body and locks the child seat 30. 4 and 5 are cross-sectional views showing the structure of the locking device 35. The side wall surface of the child seat 30 of the handle mounting case 32 can be engaged with a boss 26 protruding from the armrest 16. A notch 36 that extends is formed, and a lock member 38 that is rotatably mounted on a shaft 37 protruding from the child seat 30 is disposed in the handle attachment case 32.
[0019]
The lock member 38 is integrally formed with a claw portion 39 that engages with the lower portion of the boss 26 located in the notch 36 by the rotation of the lock member 38, and is formed on the lower surface of the claw portion 39. Is formed with a guide surface 39a for swinging the lock member 38 in the unlocking direction when the lower surface of the claw portion 39 abuts the boss 26. Further, the locking member 38 has the claw portion 39 biased by a spring 40 in the locking direction, and further protrudes outward through a circumferentially extending slit 41 formed in the handle mounting case 32 on the outer peripheral portion thereof. A knob 42 is provided.
[0020]
A shaft 43 is provided in the handle mounting case 32 at a position eccentric with respect to the shaft 37 of the lock member 38, and a stopper 44 is pivotally supported on the shaft 43 by a spring 45. It is always biased in the opposite direction to the lock member 38. A stopper piece 46 is formed on the stopper 44, and when the lock member 38 moves to the unlocking position, the stopper piece 46 engages with a protrusion 47 provided on the lock member 38, and the lock member 38 38 is automatically fixed to the locked position (FIG. 5). Further, the stopper 44 is formed with a stop release rod 48 extending downward, and the stopper 44 is rocked against the spring 45 at the lower end of the stop release rod 48 by abutting against the boss 26. An unlocking operation portion 48a for separating the stopper piece 46 from the projection 47 is formed.
[0021]
Thus, when the child seat 30 is mounted on the stroller body, as shown in FIG. 6, the lower part of the child seat 30 is inserted between the left and right armrests 16 from above the stroller body in the unfolded state, and the left and right sides of the child seat 30 are The handle attachment case 32 is engaged with the upper and outer sides of the armrest 16. Therefore, when the child seat 30 is lowered and the guide surface 39a of the lock member 38 of the lock member 38 comes into contact with the boss 26 of the stroller body, the lock member 38 resists the spring 40 by the guide surface 39a and is counterclockwise in FIG. Rotated in the direction. Therefore, the claw portion 39 is moved to the side from the notch 36, and the notch 36 of the handle mounting case 32 is engaged with the boss 26.
[0022]
When the notch 36 of the handle mounting case 32 is engaged with the boss 26 in this way, the lock member 38 is rotated clockwise in FIG. 4 by the spring 40, and the claw portion 39 is engaged below the boss 26. Accordingly, the child seat 30 is locked at that position, and the front and rear portions of the handle mounting case 32 are placed on the armrest 16 and the belt guide 33 abuts on the pipe 18 so that the child seat 30 is attached and fixed to the stroller body. (FIG. 7) It can function as a stroller.
[0023]
On the other hand, when removing the child seat 30 from the stroller body, if the handle 42 is held and rotated upward as shown in FIG. 5, the lock member 38 is rotated counterclockwise and the claw portion 39 is moved to the unlocked position. Moved. When the lock member 38 is thus rotated to the unlock position, the stopper 44 is swung around the shaft 43 by the spring 45, the stopper piece 46 is engaged with the protrusion 47 of the lock member 38, and the lock member 38. Is prevented and the lock member 38 is automatically fixed at the unlocked position.
[0024]
Therefore, the child seat 30 can be removed from the stroller body by lifting the child seat 30 upward. On the other hand, when the child seat 30 is lifted as described above, the unlocking operation portion 48a abuts against the boss 26 in the middle thereof, and the stopper 44 is rotated clockwise about the shaft 43 against the spring 45. Therefore, the stopper piece 46 is detached from the protrusion 47 and the stopper action is lost. Therefore, the lock member 38 is automatically returned from the unlock position to the position shown in FIG.
[0025]
In addition, when the child seat 30 is removed from the stroller body as described above, the left and right pipes 18 constituting the hand barb are generally configured because the seat portion 49 of the seat is already fixed to the stroller body. The seat reclining adjustment belt 27 is attached to the middle portion of the seat, and the seat 27 is used to attach the back portion 50 of the seat as shown in FIG. . Further, when not used as a stroller, the child seat 30 can be removed to be folded in three as shown in FIG.
[0026]
【The invention's effect】
As described above, in the present invention, the bosses protrude from the outer surfaces of the left and right armrests of the stroller body, and the locking devices that engage and lock the bosses are provided on both sides of the child seat. The child seat can be freely attached to and removed from the stroller body, and the influence on the design can be kept to a minimum, and the vehicle body can be made compact. Furthermore, even when the child seat is not used, the function as a stroller can be provided, and the present invention can be sufficiently applied to a stroller that can be folded in three.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic configuration of a stroller body applied to the present invention.
FIG. 2 is a diagram showing a folded state of the stroller body shown in FIG. 1;
FIG. 3 is a view showing the shape of a child seat.
FIG. 4 is a cross-sectional view showing a locked state of the locking device according to the present invention.
FIG. 5 is a cross-sectional view showing an unlocked state of the locking device according to the present invention.
FIG. 6 is an explanatory diagram of the operation of attaching a child seat to the stroller body.
FIG. 7 is a view showing a state in which a child seat is attached to the stroller body.
FIG. 8 is a view showing a state in which a function as a stroller is provided without using a child seat.
[Explanation of symbols]
16 Armrest 26 Boss 27 Reclining adjustment belt 30 Child seat 31 Handle 32 Handle mounting case 33 Belt guide 35 Locking device 38 Locking member 39 Claw part 42 Knob 44 Stopper 46 Stopper piece 47 Projection part 48 Stop release rod

Claims (5)

It causes protruding boss on the outer surface of the left and right armrest of the stroller body outward, a lower sides of the child seat into the handle mounting case for mounting the handle of the child seat pivotably secured, projecting to the outer surface of the armrest A locking device that engages and locks the boss is provided, the child seat can be attached to and detached from the stroller body, and the left and right handle mounting cases are engaged with the upper and outer sides of the left and right armrests of the stroller body, thereby A stroller characterized by being mounted on the stroller body .   The locking device is rotatably mounted on the child seat, and has a lock member that engages with the boss by the rotation to lock the child seat and is always urged in the locking direction. The stroller according to claim 1. The lock member has a claw portion that engages with the lower portion of the boss, and a guide surface is formed on the lower surface of the claw portion to swing the lock member in the unlocking direction by contact with the boss when the child seat is attached. It is characterized in that has, according to claim 2 Symbol placement of the stroller. The child seat has a stopper on the shaft of the locking member that engages with a protrusion provided on the locking member when the locking member is rotated in the unlocking direction and automatically fixes the locking member in the unlocking position. characterized in that provided swingably about an axis that is eccentric against, claim 2 or 3 stroller according. The stopper is formed with a stop release rod extending downward, and the lower portion of the stop release rod contacts the boss when the child seat is lifted, and the engagement between the protrusion provided on the lock member and the stopper. 5. The stroller according to claim 4 , further comprising a lock release operating portion that protrudes from the lock and automatically returns the lock member from the lock release position.

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