JP7339181B2 - Child seat handlebar - Google Patents

Description

The present invention relates to a handlebar for a child seat.

For example, as shown in Patent Document 1 below, there is known a handlebar for a child seat that is provided at the front portion of the child seat and extends in the left-right direction so that an infant sitting in the child seat can grip the handlebar.
This type of handlebar includes a connecting portion and a connecting mechanism portion to which the connecting portion is detachably connected so that a child can easily get on and off the child seat. It is conceivable to employ a configuration in which the handlebar is split axially along the central axis of the handlebar by disengaging from the handlebar.
In this configuration, the connected portion is separated from the connecting mechanism portion, the handlebar is divided in the axial direction, and the child is allowed to pass through the divided portion, thereby allowing the child to easily get in and out of the child seat. can be done.

Japanese Patent No. 5718279

By the way, in a child seat handlebar provided with a connecting part and a connecting mechanism part, in order to make it easier for a child to get in and out of the child seat, there is a demand for a structure in which sharp protrusions and the like are not exposed from the connecting mechanism part. be done.

SUMMARY OF THE INVENTION The present invention has been made in consideration of such circumstances, and provides a handlebar for a child seat that does not expose sharp protrusions and the like from the connecting mechanism and allows an infant to more easily get on and off the child seat. intended to provide

In order to solve the above problems and achieve the above objects, a handlebar for a child seat according to the present invention is provided in the front part of the child seat and extends in the left-right direction, and is a handlebar that can be gripped by an infant sitting in the child seat. A connection target portion and a connection mechanism portion to which the connection target portion is detachably connected are provided, and by disengaging the connection target portion from the connection mechanism portion, the handlebar can The connecting mechanism portion extends in the axial direction, and the connected portion is detachably inserted inward from an opening formed at the end portion in the axial direction. an operating member provided inside the case body and biased in the axial direction; and a plurality of members provided inside the case body so as to surround the connected portion around the central axis. , a latch biased inward in a radial direction crossing the central axis as viewed in the axial direction by engaging a recess formed in the operating member, and the operating member; an operation member at least partially exposed to the outside of the case body and movably provided on the case body, wherein the latch engages with the connected portion so that the connected portion A regulating portion for regulating removal from the inside of the case body, and a pushed-in portion pushed radially inward by the pushing portion. When the actuating member is moved to one side in the axial direction, the radially inward pressing of the pushed portion by the pushing portion is released.

According to this invention, when the operating member moves the operating member to one side in the axial direction as the operating member is operated, the latch is directed radially inward with respect to the pushed portion of the latch by the pushing portion of the operating member. Since the push-in is released, the latch can be moved radially outward to release the engagement between the regulating portion of the latch and the connected portion, and the connected portion can be moved to the opening of the case body. You can pull it out of the part. As a result, the connected portion is separated from the connecting mechanism portion, and the handlebar is separated in the axial direction.
After that, when the operation of the operating member is released, the axially biased operating member is restored and moved, so that the push-in portion and the pushed-in portion are engaged with each other, and the latch is restored radially inwardly. do.
When the connected portion is inserted into the inside of the case body through the opening, the end portion of the connected portion comes into sliding contact with the regulating portion of the latch, thereby pushing the latch outward in the radial direction. and reaches the entry end position, the latch biased radially inward by the pushing portion of the operating member moves radially inward, and the restricting portion By engaging with the connected portion, the connected portion is restricted from coming off from the opening of the case body.
In the above process, a latch having a regulating portion that engages with the connected portion and a pushed portion that is pushed radially inward into the pushing portion of the operating member is positioned inside the case body and actuated. As a result, it is possible to prevent sharp protrusions and the like from being exposed from the connecting mechanism portion, so that the infant can more easily get in and out of the child seat.

The latch includes a retraction input portion that abuts or approaches a push-down portion formed on the operating member in the axial direction. When moved in one direction, the depression may engage the retraction input to retract the latch radially outward.

In this case, since the latch has a retraction input portion axially abutting or approaching the push-down portion formed on the operating member, when the operating member is moved toward one side in the axial direction, , the push-down portion is engaged with the retraction input portion, thereby retracting the plurality of latches radially outward. Accordingly, by moving the operating member toward one side in the axial direction, the plurality of latches can be naturally moved radially outward, and the restricting portion can be retracted from the connected portion. The connected portion can be easily extracted from the opening of the case body.

The retreating input portion may be separately provided on both sides sandwiching the pushed portion in a circumferential direction along the central axis.

In this case, since the retreat input portions are separately provided on both sides sandwiching the pushed portion in the circumferential direction, when the operating member is moved toward one side in the axial direction, the push-down portion of the operating member , the latch can be stably moved radially outward without tilting or the like.

According to this invention, it is possible to allow an infant to get on and off the child seat more easily without exposing a sharp protrusion or the like from the connecting mechanism portion.

1 is a schematic diagram showing a state in which a handlebar shown as one embodiment of the present invention is attached to a child seat; FIG. FIG. 2 is a vertical cross-sectional view showing a connected portion and a connecting mechanism portion of FIG. 1; FIG. 3 is a view showing a state in which an operating member is moved downward in FIG. 2; FIG. 3 is an explanatory diagram illustrating engagement of an operating member and a latch in FIG. 2; FIG. 5 is a diagram showing a state in which the operating member is moved downward in FIG. 4; FIG. 6 is a side view seen from the right side of the paper in FIGS. 2 to 5; FIG. 7 is a diagram showing a state in which the operating member is moved downward in FIG. 6; FIG. 3 is a cross-sectional view taken along the line VIII-VIII shown in FIG. 2; FIG. 3 is a cross-sectional view taken along the line IX-IX shown in FIG. 2;

An embodiment of a child seat handlebar 1 according to the present invention will be described below with reference to FIGS. 1 to 9. FIG.
The child seat handlebar 1 is provided at the front portion of the child seat S, extends in the left-right direction, and is gripped by an infant seated on the child seat S. As shown in FIG. The child seat S is formed in a bottomed tubular shape with an open front. The handlebar 1 is provided over the entire length of the front portion of the child seat S in the left-right direction.

The handlebar 1 includes a connection target portion 11 and a connection mechanism portion 12 to which the connection target portion 11 is detachably connected. The handlebar 1 is divided in the axial direction along the central axis O. As shown in FIG.
As a result, the connected portion 11 is detached from the connecting mechanism portion 12, the handlebar 1 is divided in the axial direction, and the child is allowed to pass through the divided portion so that the child can be easily moved to the child seat S. you can get on and off. After the infant sits on the child seat S, the connected portion 11 is connected to the connecting mechanism portion 12 .

In this embodiment, the connected portion 11 is fixed to the left end portion of the child seat S, as shown in FIG. The handlebar 1 includes a bar main body 1a which is rotatably connected to the right end of the child seat S at one end in the axial direction and which opens and closes the front part of the child seat S. As shown in FIG. The connecting mechanism portion 12 is provided at the other axial end portion of the bar body 1a. The bar body 1a has rigidity.
A portion of the bar body 1a other than the other axial end portion may be deformable, for example. A plurality of connected portions 11 and connecting mechanism portions 12 may be provided in one handlebar 1 in the axial direction. The form of the bar main body 1a is not limited to the illustrated example and may be changed as appropriate.

As shown in FIG. 2 , the connected portion 11 includes a large-diameter base portion 17 fixed to the child seat S and a small-diameter tip portion 18 .
Each of the base portion 17 and the tip portion 18 is formed in a columnar shape extending in the axial direction. In the illustrated example, the base portion 17 and the tip portion 18 are each formed in a cylindrical shape extending in the axial direction. The base portion 17 and the tip portion 18 are arranged coaxially with the central axis O, respectively.

Hereinafter, the base portion 17 side with respect to the tip portion 18 along the axial direction is referred to as downward, and the tip portion 18 side with respect to the base portion 17 along the axial direction is referred to as upward. When viewed from the axial direction, the direction intersecting the central axis O is called the radial direction, and the direction rotating around the central axis O is called the circumferential direction.

An upper end portion 18b and a lower end portion of the distal end portion 18 are respectively tapered upward. The distal end portion 18 is formed with a locking portion 18a to which a later-described latch 15 is detachably locked. The engaging portion 18 a is a recess formed on the outer peripheral surface of the tip portion 18 . The locking portion 18a is a groove extending in the circumferential direction. The engaging portion 18a is formed in an intermediate portion of the distal end portion 18 located between the upper end portion 18b and the lower end portion. Among the inner surfaces of the engaging portion 18a, the upper surface located at the upper end and facing downward extends straight in the radial direction when viewed in longitudinal section along the axial direction. A convex portion formed on the outer peripheral surface of the distal end portion 18 may be employed as the locking portion 18a.

The connecting mechanism section 12 includes a case body 13 , an operating member 14 , a latch 15 and an operating member 16 .

The case body 13 has an outer shell body 21 and an insert body 22 and extends in the axial direction. The outer shell body 21 and the insert body 22 are each formed in a capped tubular shape. Note that the outer shell body 21 and the insert body 22 may be integrally formed.

The inner peripheral surface of the outer shell body 21 is formed in a multi-stage shape in which the outer shell body 21 has a smaller inner diameter toward the top. The outer peripheral surface of the outer shell 21 is formed smooth over the entire area. The outer peripheral surface of the outer shell body 21 is continuous with the outer peripheral surface of the base portion 17 of the connected portion 11 in the axial direction without steps over the entire length in the circumferential direction. A radial gap is provided between the inner peripheral surface of the outer shell 21 and the outer peripheral surface of the insert 22 . A support rib 21 a extending in the axial direction is provided on the inner peripheral surface of the outer shell 21 . Two supporting ribs 21a are provided, one on each side of the center axis O in the radial direction.

The insert 22 has a topped cylindrical pedestal portion 23 having an annular top wall and a peripheral wall, and an annular top wall and peripheral wall extending upward from the inner peripheral edge portion of the top wall of the pedestal portion 23 . A topped cylindrical intermediate cylindrical portion 24 and a topped cylindrical upper cylindrical portion 28 extending upward from the inner peripheral edge of the top wall of the intermediate cylindrical portion 24 and having an annular top wall and peripheral wall. I have. The pedestal portion 23, the intermediate tubular portion 24, and the upper tubular portion 28 gradually increase in size in the axial direction and gradually decrease in outer diameter.

The upper surface of the top wall of the upper cylindrical portion 28 is in contact with the lower surface of the top wall of the outer shell 21 . A headed bolt B is passed through the inside of the top wall of the upper cylindrical portion 28 and screwed into a screw hole formed in the bottom surface of the top wall of the outer shell 21 to fix the insert 22 to the outer shell 21. It is
The axial positions of the lower end opening edges of the pedestal portion 23 and the outer shell body 21 are aligned with each other. A closing flange portion 23a is formed at the lower end portion of the pedestal portion 23 so as to protrude radially outward and extend continuously over the entire length in the circumferential direction. The outer peripheral surface of the closing flange portion 23 a is in contact with or close to the inner peripheral surface of the outer shell 21 . The lower surface of the closing flange portion 23 a , the lower opening edge of the pedestal portion 23 , and the lower opening edge of the outer shell 21 are in contact with or close to the upper surface of the base portion 17 of the connected portion 11 . The connected portion 11 is detachably inserted inside the case body 13 through the lower end opening of the pedestal portion 23 .

As shown in FIGS. 2 and 9, an insertion hole 24a is formed in the lower end portion of the intermediate cylindrical portion 24 so as to extend therethrough in the radial direction. Two insertion holes 24a are provided, one on each side of the center axis O in the radial direction. The insertion hole 24 a is located below the lower edge of the support rib 21 a of the case body 13 . The insertion hole 24a has a rectangular shape elongated in the circumferential direction when viewed from the front in the radial direction. In the outer peripheral surface of the intermediate cylindrical portion 24, recessed portions that are recessed inward in the radial direction are formed in portions that are continuous with both circumferential end portions of the insertion hole 24a. The bottom surface 24b of the recess extends in the other direction orthogonal to the one direction in which the two insertion holes 24a face each other when viewed from the axial direction. Both ends in the other direction of the bottom surface 24b of each recess are connected to the inner peripheral surface and the outer peripheral surface of the intermediate cylindrical portion 24, respectively.

As shown in FIGS. 2 and 6, a portion of the outer peripheral surface of the intermediate cylindrical portion 24 located above the insertion hole 24a is adjacent to the insertion hole 24a in the axial direction and protrudes radially outward. A raised eaves 25 is formed. The eaves portion 25 has a rectangular shape elongated in the circumferential direction when viewed from the front in the radial direction. The size of the eaves portion 25 in the circumferential direction is smaller than the size of the insertion hole 24a in the circumferential direction. Circumferential center portions of the eaves portion 25 and the insertion hole 24a are aligned with each other.

A first vertical rib 26 extending upward from the eaves 25 is formed on the outer peripheral surface of the intermediate tubular portion 24 . The axial positions of the upper edge of the first vertical rib 26 and the upper surface of the top wall of the intermediate cylindrical portion 24 are aligned with each other. The circumferential size of the first vertical rib 26 is smaller than the circumferential size of the overhang portion 25 . Circumferential center portions of the first vertical rib 26 and the eaves portion 25 are aligned with each other. The radial outer edges of the first vertical ribs 26 and the eaves 25 are connected to each other without steps in the axial direction. The radially outer edge of the first vertical rib 26 is in contact with or close to the radially inner edge of the support rib 21 a of the case body 13 . The upper portion of the first longitudinal rib 26 and the lower portion of the support rib 21a are in radial contact with or close to each other.
A second vertical rib 27 (FIG. 8) extending over the entire length in the axial direction is formed on the outer peripheral surface of the intermediate tubular portion 24 at a portion located between the first vertical ribs 26 adjacent to each other in the circumferential direction.

As shown in FIGS. 6, 8 and 9, the operating member 16 is linked to the operating member 14, at least a portion thereof is exposed outside the case body 13, and is movably provided on the case body 13. there is The operating member 16 is formed in a rod shape extending in the radial direction. In the illustrated example, the operating member 16 extends in the other direction (hereinafter referred to as the pushing direction) in which the bottom surface 24b of the recess extends when viewed from the axial direction. The operation member 16 is formed with an elongated hole 16a that penetrates in the axial direction and is long in the pushing direction. An upper cylindrical portion 28 is inserted into the long hole 16a. The operating member 16 is provided movably in the pushing direction. The operating member 16 extends upward from the front side to the rear side in the pushing direction, and the upper end portion of the operating member 16 protrudes from the outer peripheral surface of the outer shell body 21 through a through hole formed in the outer shell body 21 . ing. Note that the operating member 16 does not have to protrude from the outer peripheral surface of the outer shell 21 .

As shown in FIG. 7, when the upper end portion of the operation member 16 is pushed into the case body 13 in the pushing direction, the upper tubular portion 28 relatively moves rearward in the pushing direction in the elongated hole 16a. while the operating member 16 moves forward in the pushing direction with respect to the case body 13 . The lower end of the operating member 16 abuts on the upper surface of the top wall of the operating member 14 so as to be slidable in the pushing direction. Note that the operation member 16 may be provided movably in the axial direction, for example.
Here, in the illustrated example, the center axis of the upper cylindrical portion 28 of the case body 13 is the side where the operation member 16 protrudes from the case body 13 with respect to the center axis O when viewed from the axial direction, that is, the pushing direction. is displaced to the rear of the Note that the upper tubular portion 28 may be arranged coaxially with the central axis O.

As shown in FIGS. 2, 4, 8, and 9, the latch 15 is provided inside the case body 13 so as to radially surround the distal end portion 18 of the connected portion 11. A plurality of them are provided at intervals, and are biased inward in the radial direction by engaging with the operating member 14 . A plurality of latches 15 are provided at regular intervals in the circumferential direction. The latch 15 is formed in a cuboid shape extending along the outer peripheral surface of the intermediate cylindrical portion 24 and extending in the circumferential direction. Two latches 15 are provided, one on each side of the center axis O in the radial direction. The latch 15 covers the insertion hole 24a from the outside in the radial direction. The two latches 15 are opposed to each other in a direction perpendicular to the pushing direction when viewed from the axial direction. The latch 15 is axially sandwiched and supported by the upper surface of the top wall of the pedestal portion 23 and the lower surface of the eaves portion 25 . The inner peripheral surface of the latch 15 is in contact with or close to a portion of the outer peripheral surface of the intermediate cylindrical portion 24 that is axially sandwiched between the insertion hole 24 a and the overhang portion 25 .

As shown in FIG. 4 , the latch 15 includes a regulating portion 31 , a pushed portion 33 and a retraction input portion 35 . The latch 15 is entirely covered with the case body 13 . Note that the latch 15 may not have the retraction input section 35 .

The restricting portion 31 protrudes radially inward from the inner peripheral surface of the latch 15 . As shown in FIGS. 2 and 9, the restricting portion 31 is detachably engaged with the locking portion 18a of the connected portion 11 through the insertion hole 24a. This restricts the connected portion 11 from slipping out from the inside of the case body 13 in the axial direction. The restricting portion 31 is formed in a plate shape with front and back surfaces oriented in the axial direction. The upper surface of the restricting portion 31 extends straight in the radial direction when viewed in longitudinal section along the axial direction. The upper surface of the restricting portion 31 is in contact with or close to the upper surface of the inner surface of the locking portion 18a that is located at the upper end and faces downward. The restricting portion 31 is provided at the lower end portion of the latch 15 .

As shown in FIG. 9, when viewed from the axial direction, of the radial inner edge of the restricting portion 31, both side portions in the pushing direction form a chord of the inner peripheral surface of the arc-shaped latch 15. It extends straight in the push-in direction, and the intermediate portion in the push-in direction has a concave curved shape along the bottom surface of the engaging portion 18a. The radially inner edge of the restricting portion 31 is in contact with or close to the bottom surface 24b of each recessed portion of the intermediate cylindrical portion 24, respectively. Of the radial inner edges of the restricting portion 31 , both end portions in the pushing direction protrude outward in the pushing direction from the outer peripheral surface of the intermediate tubular portion 24 .

As shown in FIG. 2, at least the lower surface of the radially inner end portion of the restricting portion 31 protruding radially inward from the inner peripheral surface of the intermediate cylindrical portion 24 extends radially inward. It extends upward according to As a result, when the distal end portion 18 of the connected portion 11 is inserted into the inside of the case body 13 through the lower end opening of the pedestal portion 23, the upper end portion 18b of the distal end portion 18, whose diameter is reduced as it goes upward, is pushed into the restricting portion. By slidably contacting the lower surface of the radial inner end portion 31, the latch 15 is naturally pushed outward in the radial direction.

As shown in FIG. 4 , the pushed portion 33 is pushed radially inward by a pushing portion 32 formed in the operating member 14 and described later. The pressed portion 33 is a concave portion that is formed on the outer peripheral surface of the latch 15 and is recessed radially inward. The pressed portion 33 opens to the lower end surface of the latch 15 . The bottom surface of the pushed portion 33 facing radially outward extends radially outward as it goes upward.
The retraction input portion 35 is axially in contact with or close to a push-down portion 34 (described later) formed on the operating member 14 . The retreat input portions 35 are separately provided on both sides sandwiching the pushed portion 33 in the circumferential direction. The retraction input portions 35 are formed at both ends in the circumferential direction of the upper end surface of the latch 15 and form inclined surfaces that extend downward as the distance from the pressed portion 33 increases in the circumferential direction.

The operating member 14 is provided inside the case body 13 and biased in the axial direction. In this embodiment, as shown in FIGS. 2, 6 and 9, the actuating member 14 fills the radial gap between the inner peripheral surface of the outer shell 21 and the outer peripheral surface of the insert 22. and is biased upward. Note that the operating member 14 may be biased downward.
Actuating member 14 is formed in a capped tubular shape having an annular top wall and a peripheral wall.

The upper tubular portion 28 of the case body 13 is inserted inside the top wall of the operating member 14 . The upper surface of the top wall of the operating member 14 extends upward from the rear to the front in the pushing direction. The lower surface of the top wall of the operating member 14 and the upper surface of the top wall of the intermediate cylindrical portion 24 of the case body 13 face each other in the axial direction. A biasing member 36 is sandwiched between the lower surface of the top wall of the operating member 14 and the upper surface of the top wall of the intermediate cylindrical portion 24 while being compressed in the axial direction. The biasing member 36 is a coil spring, and the upper cylindrical portion 28 is inserted inside.
As described above, when the operation member 16 is pushed, the lower end of the operation member 16 slides on the upper surface of the top wall of the operation member 14 , so that the operation member 14 resists the upward biasing force of the biasing member 36 . to move down.

An escape opening 14a into which the latch 15 enters when the latch 15 moves radially outward is formed in a portion of the inner peripheral surface of the peripheral wall of the operating member 14 that faces the outer peripheral surface of the latch 15 in the radial direction. In the illustrated example, the relief opening 14a extends radially through the peripheral wall of the actuating member 14 . When the latch 15 moves radially outward, it enters the inside of the outer shell 21 through the escape opening 14a. The escape opening 14a is formed in the peripheral wall of the operating member 14 over the entire length in the axial direction except for the lower end. The circumferential size of the relief opening 14 a is larger than the outer diameter of the intermediate cylindrical portion 24 . Of the inner peripheral surface of the relief opening 14a, the lower end surface located at the lower end and facing upward and the peripheral end surface located at both ends in the circumferential direction and facing the circumferential direction are provided with the lower end surface of the latch 15 and the circumferential direction. are in contact with or close to each other.

The operating member 14 is formed with a push-in portion 32 that pushes a push-in portion 33 of the latch 15 radially inward. The push-in portion 32 protrudes upward from the lower end surface of the escape opening 14a. The push-in portion 32 is slightly smaller than the push-in portion 33 of the latch 15 when viewed from the front in the radial direction, and the entire push-in portion 32 is positioned inside the push-in portion 33 . Of the surfaces of the push-in portion 32 , the inner surface facing radially inward extends radially outward along the bottom surface of the pushed-in portion 33 as it goes upward. The inner surface of the push-in portion 32 is in contact with the bottom surface of the push-in portion 33 .

As described above, as shown in FIGS. 3, 5 and 7, when the operating member 16 moves the actuating member 14 downward in accordance with the pushing operation of the operating member 16, the pushing portion 32 is pushed. By moving downward from the portion 33 , the radially inward pressing of the pushed portion 33 by the pushing portion 32 is released.
In addition, since the inner surface of the push-in portion 32 and the bottom surface of the push-in portion 33 each extend outward in the radial direction as it goes upward, the tip portion 18 of the to-be-connected portion 11 is positioned in the lower end opening of the pedestal portion 23 . When the actuating member 14 is restored upward by the biasing member 36 after being pulled out from the portion, the inner surface of the push-in portion 32 and the bottom surface of the pushed-in portion 33 come into sliding contact with each other, so that the latch 15 is naturally engaged. It is extruded radially inward.
In addition, since the inner surface of the push-in portion 32 and the bottom surface of the pushed-in portion 33 each extend radially outward as it goes upward, the distal end portion 18 of the connected portion 11 is aligned with the lower end of the pedestal portion 23 . When the latch 15 is inserted into the case body 13 through the opening and the latch 15 is pushed outward in the radial direction as described above, the inner surface of the push-in portion 32 and the bottom surface of the push-in portion 33 are in sliding contact with each other. , the operating member 14 is naturally pulled down against the upward biasing force of the biasing member 36 .

As shown in FIGS. 4 , 6 and 8 , the operating member 14 is formed with a push-down portion 34 axially abutting or close to the retraction input portion 35 . Two push-down portions 34 are provided on the inner peripheral surface of the peripheral wall of the operating member 14 at intervals between the escape openings 14a adjacent to each other in the peripheral direction. . The push-down portion 34 is a part of the side surface of a convex portion 37 protruding radially inward from the inner peripheral surface of the peripheral wall of the operating member 14 , and forms an inclined surface extending along the retreating input portion 35 . . The convex portion 37 is formed on the peripheral wall of the operating member 14 over the entire length in the axial direction except for the lower end portion. The push-down portion 34 is formed at the lower end portion of the convex portion 37 . The inner surface of the convex portion 37 facing inward in the radial direction extends along the outer peripheral surface of the intermediate cylindrical portion 24 when viewed in the axial direction.

As described above, as shown in FIG. 5 , when the operating member 16 moves the operating member 14 downward in accordance with the pushing operation of the operating member 16 , the push-down portion 34 is engaged with the retreating input portion 35 . , the push-down portion 34 moves downward while being in sliding contact with the retraction input portion 35, whereby the latch 15 is retracted radially outward.

As shown in FIG. 8, on the inner peripheral surface of the peripheral wall of the actuating member 14, at each portion located between the relief openings 14a adjacent to each other in the peripheral direction, two valves are provided at intervals in the peripheral direction. The second longitudinal rib 27 of the intermediate cylindrical portion 24 is inserted between the convex portions 37 (hereinafter referred to as two convex portions 37) so as to be axially movable. The second vertical rib 27 is inserted between the lower portions of the two protrusions 37 . The second vertical rib 27 is in contact with or close to the two protrusions 37 in the circumferential direction. The second vertical rib 27 is kept inserted between the two protrusions 37 even when the operating member 14 is at the lowered end position.

As described above, according to the child seat handlebar 1 according to this embodiment, as shown in FIGS. is moved downward, the pushing portion 32 of the actuating member 14 releases the pushed portion 33 of the latch 15 radially inward, so that the latch 15 is moved radially outward. , the engaging portion 31 of the latch 15 and the engaging portion 18a of the connected portion 11 can be released, and the connected portion 11 can be extracted from the lower end opening of the base portion 23. As a result, the connected portion 11 is separated from the connecting mechanism portion 12, and the handlebar 1 is divided in the axial direction.
After that, when the pushing operation of the operating member 16 is released, the operating member 14 that is biased in the axial direction is restored and moved, so that the pushing portion 32 and the pushed portion 33 are engaged with each other, and the latch 15 is moved radially. Restoration moves inward.

When the connected portion 11 is inserted into the case body 13 through the lower end opening of the pedestal portion 23 , the distal end portion 18 of the connected portion 11 slides against the restricting portion 31 of the latch 15 , thereby moving the latch 15 radially. The latch 15 advances toward the inside of the case body 13 while being pushed away toward the outside, and is biased radially inward by the pushing portion 32 of the operating member 14 when reaching the entry end position. moves radially inward, and the restricting portion 31 engages with the engaging portion 18 a of the connected portion 11 , so that the connected portion 11 can be removed from the lower end opening of the base portion 23 . Regulated.

In the above process, the latch 15 having the regulating portion 31 that engages with the connected portion 11 and the pressed portion 33 that is pressed radially inward into the pressing portion 32 of the operating member 14 is engaged with the case body 13. Since it is positioned inside the child seat S, it is possible to prevent sharp projections from being exposed from the connecting mechanism part 12, and the child can get on and off the child seat S more easily.

Since the latch 15 is provided with the retraction input portion 35 axially abutting or approaching the push-down portion 34 formed on the operating member 14, when the operating member 14 is moved downward, the push-down portion 35 is pushed. By engaging the lowering portion 34 with the retraction input portion 35, the plurality of latches 15 are retracted radially outward. Accordingly, when the operating member 14 is moved downward, the plurality of latches 15 are naturally moved radially outward, and the restricting portion 31 is retracted from the locking portion 18a of the connected portion 11. , and the connected portion 11 can be easily extracted from the lower end opening of the pedestal portion 23 .

Since the retraction input portions 35 are separately provided on both sides sandwiching the pressed portion 33 in the circumferential direction, when the operating member 14 is moved downward, the pressing portion 34 of the operating member 14 causes the latch. 15 can be stably moved radially outward without tilting or the like.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

In addition, it is possible to appropriately replace the components in the above-described embodiment with known components without departing from the scope of the present invention, and the above-described embodiments and modifications may be combined as appropriate. .

1 child seat handlebar 11 connected portion 12 connecting mechanism portion 13 case body 14 actuating member 15 latch 16 operating member 31 restricting portion 32 push-in portion 33 pushed-in portion 34 push-down portion 35 backward input portion O central axis S child seat

Claims (2)

A handlebar provided at the front of a child seat and extending in the left-right direction to be gripped by an infant sitting in the child seat,
A connecting part and a connecting mechanism part to which the connecting part is detachably connected,
By disengaging the connected portion from the connecting mechanism portion, the handlebar is divided in the axial direction along the central axis of the handlebar,
The connection mechanism part is
a case body that extends in the axial direction and in which the connected portion is detachably inserted inward from an opening formed at an end portion in the axial direction;
an operating member provided inside the case body and biased in the axial direction;
Inside the case body, a plurality of connected portions are provided so as to surround the central axis, and by engaging with the push-in portion formed in the operating member, the central axis can be seen from the axial direction. a latch biased radially inwardly across the
an operating member linked to the operating member, at least partially exposed to the outside of the case body, and movably provided on the case body;
The latch is
a regulating portion that engages with the connected portion to prevent the connected portion from coming off from the inside of the case body;
a pushed portion that is pushed radially inward by the pushing portion;
When the operating member moves the operating member to one side in the axial direction in accordance with the operation of the operating member, the radially inward pressing of the pushed portion by the pushing portion is released. ,
the latch includes a retraction input portion that abuts or approaches a push-down portion formed on the operating member in the axial direction;
When the operation member is operated and the operation member moves the operating member toward one side in the axial direction, the push-down portion engages with the retraction input portion, whereby the latch is operated. Child seat handlebars are retracted radially outwards . 2. The handlebar for a child seat according to claim 1 , wherein said retraction input portion is separately provided on both sides sandwiching said pressed portion in a circumferential direction along said central axis.

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