TWI543897B - A brake mechanism for a baby carriage, a wheel holding mechanism for a baby carriage, and a baby carriage - Google Patents

Description

Brake mechanism for baby carriage, wheel retention mechanism for baby carriage, and baby carriage Technical field

The present invention relates to a brake mechanism for restricting the rotation of a wheel of a stroller, and more particularly to a wheel holding mechanism for a stroller that can stably maintain a state in which the wheel is restricted from rotating. Further, the present invention relates to a wheel holding mechanism and a stroller having a brake mechanism capable of stably maintaining a state in which the wheel is restricted from being rotated.

Background technique

The lower end of the stroller has a wheel retaining mechanism (wheel retaining device) that keeps the wheels rotating. A wheel holding mechanism for a stroller generally has a braking mechanism for restricting the rotation of the wheel for the purpose of restricting the unintended walking or movement of the stroller.

Typically, the brake mechanism disclosed in CN1572619A is taken as an example. The brake mechanism disclosed in CN1572619A has a plurality of protrusions (ribs 33) radially extending around the rotation axis of the wheel, and a brake pin (engagement member 31) that is held to be movable in a predetermined direction. The brake pin is held by an operating member (wheel engaging device 20) that is swingably attached to the wheel carrier (wheel mounting member 28) that holds the wheel. Moreover, by shaking the operating member, the limitation of the wheel rotation and the release restriction can be switched.

However, when the stroller is actually used, for example, the stroller on which the stroller is placed may be tilted, and the wheel of the stroller that restricts rotation may be often used to rotate the wheel.

Invention

In view of the above, an object of the present invention is to provide a brake mechanism for a baby carriage that can stably maintain a state in which the wheel is restricted from rotating. Further, an object of the present invention is to provide a wheel holding mechanism for a baby carriage that can stably maintain a state in which the wheel is restricted from rotating. Furthermore, an object of the present invention is to stably maintain a stroller in which the state in which the wheel is rotated is stably maintained.

The brake mechanism of the present invention is for restraining a wheel rotator of a stroller, comprising: a body member; the sliding member slidable in a direction relative to the body member and held in the first holding position or the first holding position a second holding position on one side of the one direction; and a rocking member rotatably attached to the body member; and the sliding member has an operation piece engageable with the rocking member, the rocking member having: The first engagement claw is engageable with the operation piece of the sliding member that slides from the second holding position toward the first holding position; and the second engagement claw is engageable with the first holding position Engaging the operation piece of the sliding member that slides toward the second holding position, the rocking member is engaged with the operation piece by the first engagement claw and the second engagement claw, and the sliding member is held by In the first holding position, the first position is separated from the wheel to allow the wheel to rotate, and when the sliding member is held at the second holding position, When the sliding member is held at the second holding position, the second engaging claw of the rocking member located at the second position is disposed along the operation piece from the second position The movement path in one direction deviates to the position on the side And the second engaging claw abuts against the operation piece in a direction intersecting the one direction, whereby the rocking member can be restricted from swinging from the second position toward the first position.

Further, in the brake mechanism of the present invention, the second engaging claw of the rocking member may have a first surface that is disposed on the operation piece of the sliding member when the sliding member is held at the first holding position. And the second surface is disposed at a position facing the operation piece of the sliding member from the side when the sliding member is held at the second holding position, and the sliding member is held by the front surface In the second holding position, the second surface of the second engaging claw abuts against the operation piece in a direction intersecting the one direction, thereby restricting the shaking member from swinging from the second position toward the first position . In the above brake mechanism, the movement path of the second surface when the rocking member is rocked may traverse the movement path of the operation piece when the sliding member slides, and the operation of the sliding member held at the second holding position The sheet is located on the moving path of the second surface when the rocking member is rocked. In the above brake mechanism, the second surface may extend in parallel with the one direction when the sliding member is held at the second holding position.

In the brake mechanism of the present invention, the first engaging claw of the rocking member may have an abutting surface that contacts the operation piece of the sliding member from the other side in one direction, and the sliding member is held in the first holding position. The operation piece of the sliding member may be located in a recess between the first engagement claw and the second engagement claw of the rocking member.

In the brake mechanism of the present invention, the aforementioned operation of the sliding member A head may be formed on the sheet, and the head portion extends to cover at least a portion of the first engaging claw and at least a portion of the second engaging claw.

In the brake mechanism of the present invention, the rocking member is rocked relative to the main body member, and is restricted between the first position and the second position by the contact of the rocking member with the main body member.

The brake mechanism of the present invention further includes a pressing member supported by the body member, and pressing the sliding member toward the body member from the one side to the other side along the one direction, the sliding The member may be configured to return to the other side and hold the position by the pressing force of the pressing member every time the pressing force is applied from the other side toward the one side in the one direction, which is the first The holding position changes interactively with the aforementioned second holding position.

In the brake mechanism of the present invention, the rocking member may be configured to be rocked in a direction crossing the one direction, in particular, a direction orthogonal to the one direction. In the brake mechanism of the present invention, the sliding member may be provided in the foregoing In the body member, the operation piece extends in a direction crossing the one direction and protrudes from the body member. In the brake mechanism of the present invention, the rocking member may have one of the pair of plate-like portions disposed on both sides of the body member along a rocking axis of the body member, and each of the plate-shaped portions may have the first engaging claw and the first portion 2 engaging claws, wherein the sliding member is provided in the body member, and the sliding member has a pair of operation pieces extending toward both sides in a direction parallel to a rocking axis of the rocking member. In the brake mechanism of the present invention, the cover covering the operation piece may extend along the movement path of the operation piece of the slide member and be provided to the body member.

The brake member of the present invention may further have an operating member operatively attached to the body member, and the sliding member may be slid relative to the body member by actuating the body member.

A wheel holding mechanism for a stroller according to the present invention is applicable to a foot of a stroller, comprising: the brake mechanism of any one of the above invention; the axle, the body member held by the brake mechanism; and a wheel , is attached to the aforementioned axle.

A wheel holding mechanism for a stroller according to the present invention further includes a caster member that is disposed between the leg portion and the body member, and connects the leg portion and the body member, wherein the caster member has a fixing portion. And being fixed to the leg portion; and the turning portion is rotatably coupled to the fixing portion and fixed to the body member.

In the wheel holding mechanism for a baby carriage according to the present invention, the axle extends through both the turning portion of the caster member and the body member.

The stroller of the present invention comprises: a stroller body having a front leg and a rear leg; and a wheel retaining mechanism mounted on at least one of the forefoot and the rear leg, and the wheel retaining mechanism is the brake of any of the above inventions mechanism.

According to the present invention, the state in which the wheel of the stroller is rotated can be stably maintained.

Simple illustration

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an embodiment of the present invention, showing a wheel holding mechanism for a stroller and a stroller.

Figure 2 is a side elevational view of the stroller of Figure 1.

Fig. 3 is a side view showing the wheel holding mechanism and the brake mechanism.

Figure 4 is a perspective view showing the brake mechanism.

Fig. 5 is a side view showing the brake mechanism in the state of a rotatable wheel.

Fig. 6 is a side view showing the brake mechanism in a state where the rotation of the wheel can be restricted.

Fig. 7 is a side view showing the brake mechanism in a state different from those in Figs. 5 and 6.

Fig. 8 is an exploded side view showing the internal members of the brake mechanism.

Fig. 9 is a view showing the brake mechanism from the direction of the arrow A in Fig. 8.

Fig. 10 is a view corresponding to Fig. 9 showing a state in which the sliding member is located at a position different from the state of Fig. 9.

Fig. 11 is a view showing a state in which the slide member is located at a position different from the state of Figs. 9 and 10, corresponding to Fig. 9 and Fig. 10 .

Fig. 12 is a view showing a state in which the sliding mechanism has been removed from the brake mechanism of Fig. 9.

Figure 13 is a perspective view showing a rocking member of the brake mechanism.

The best form for implementing the invention

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

1 to 13 are views for explaining one embodiment of the stroller, the wheel holding mechanism (wheel holding device), and the brake mechanism (brake device) of the present invention. Among them, Fig. 1 shows the overall configuration of the stroller. Figure 1 The stroller 10 shown has a stroller body 11 including a frame portion 15 having a pair of forefoot 22 and a pair of rear legs 24, and a push handle 13 that is swingably coupled to the frame portion 15. The lower end of each of the front legs 22 of the stroller body 11 is provided with a wheel holding mechanism 30 for holding the front wheel 35 in a rotatable manner, and the lower end of each of the rear legs 24 is provided with a wheel holding mechanism 40 for holding the rear wheel 45 in a rotatable manner. The wheel holding mechanism 30 for the front wheel 35 holds the front wheel 35 rotatable through the axle. As shown in FIG. 3, the wheel holding mechanism 40 for the rear wheel 45 holds the rear wheel 45 rotatable through the axle 49.

The wheel holding mechanism 40 for the rear wheel 45 has a brake mechanism 50 that switches between a state in which the wheel 45 is rotated and a state in which the wheel 45 is restricted from rotating. By restricting the rotation of the rear wheel 45 by the brake mechanism 50, the movement of the stroller 10 can be restricted and maintained in a stopped state. The wheel holding mechanism 40 for the rear wheel 45 will be described in detail later.

In the stroller 10 of the present embodiment, by swinging the handle 13 with respect to the frame portion 15, the operator (protector) can grip the handle 13 from the back side of the infant to operate the stroller 10, and the infant faces the traveling direction. The stroller 10 is moved forward (the state shown in FIG. 1 and the state shown by the broken line in FIG. 2), and the operator can grip the stroller 10 by holding the handle 13 from the front side of the infant facing the infant, in the stroller 10. Thereafter, the foot side is positioned below the forward direction of the traveling direction to cause the stroller 10 to travel (the state shown by the solid line in Fig. 2). In other words, the handle 13 is configured to be liberably fixed to the facing push position shown by the solid line in FIG. 2 and the back push position shown by the broken line in FIG. 2.

As shown in FIG. 1, the wheel holding mechanisms 30, 40 on which the front leg 22 and the rear leg 24 are mounted are configured as casters, not only keeping the wheels 35, 45 in place. The rotation axis La can be rotated centrally, and the wheel 45 and the shaft member (axle) that holds the wheel 45 can be rotated centered on the rotation axis Lb that the rotation axis La crosses. Further, each of the wheel holding mechanisms 30 and 40 has a locking mechanism (not shown) for restricting the rotation of the wheels 35 and 45 around the turning axis Lb.

The slewing restriction and the release restriction of the wheels 35 and 45 of the lock mechanism can be performed in conjunction with the position of the handle 13 as disclosed in, for example, JP 2008-254688 A, JP 2008-254688 A, JP 2010-234988 A, and the like. Specifically, the wheel holding mechanisms 30 and 40 mounted on the front portions of the front legs 22 and the rear legs 24 in the moving direction are such that the wheels 35 and 45 are swung around the turning axis Lb, and the legs in the rear of the moving direction are provided. The wheel holding mechanisms 30, 40 installed in the portion can restrict the rotation of the wheels 35, 45 around the turning axis Lb. According to the above aspect, the operator (protector) operates the baby carriage 10 while holding the handle 13 from the back side of the infant, or the operator holds the handle 13 from the front side of the infant to manipulate the baby. When the car is 10, the stroller 10 can be smoothly swung during walking.

Further, a configuration in which the handle 13 can be swung relative to the frame portion 15 or a locking mechanism for restricting the rotation of the wheels 35, 45 around the turning axis Lb can be carried out by a known configuration, for example, JP2008-254688A, JP2008-254688A described above. , JP2010-234988A, etc. disclosed. Therefore, a more detailed description is omitted in the present specification.

Further, in the present embodiment, as disclosed in JP-254688A, the stroller 10 is foldable as widely used. As a specific example, the stroller 10 can be constructed as follows.

The stroller body 11 (stroller 10) as a whole is configured to be substantially symmetrical about the center plane in the lateral direction of the front-rear direction. As shown in Fig. 1, the frame portion 15 of the present embodiment is disposed on each of the right and left pair of front legs 22, and is disposed on each of the right and left pair of rear legs 24, and is disposed on each of the right and left pair of arm portions 28, and is disposed separately. One pair of left and right connecting members 26. The upper end portion of the front leg 22 is rotatably (shawably) coupled to the arm portion 28 disposed on the corresponding side (left side or right side). Similarly, the upper end portion of the rear leg 24 is rotatably (tiltable) coupled to the arm portion 28 disposed on the corresponding side (left side or right side). Further, the upper portion of the connecting member 26 is rotatably (shawably) coupled to the rear portion of the arm portion 28 disposed on the corresponding side (left side or right side).

The frame portion 15 has a left side member 18 that connects the left front leg 22 and the left connecting member 26, and a right side member 18 that connects the right front leg 22 and the right connecting member 26. Each of the side members 18 is rotatably coupled to the intermediate portion of the front leg 22, and its rear portion is rotatably coupled to the lower portion of the coupling member 26. Further, the frame portion 15 further includes a left bracket 16 that connects the left rear leg 24 and the left connecting member 26, and a right bracket 16 that connects the right rear leg 24 and the right connecting member 26. Each of the brackets 16 is partially rotatably (tiltable) coupled to the intermediate portion of the rear leg 24, and the other portion is rotatably coupled to the lower portion of the coupling member 26.

The handle 13 is slidably coupled to the frame portion 15 constituted by the above configuration. The handle 13 is rotatably (shawably) coupled to the bracket 16 on the side corresponding to both ends of the U-shape. The rotation axis of the handle 13 relative to the bracket 16 (rocking center), and the rotation axis of the bracket 16 and the joint member 26, and the joint member 26 coincides with the axis of rotation of the side members 18. Further, the handle 13 located at the back push position is rotatably coupled to the arm portion 28 or the joint member 26.

Further, the member extending in the lateral direction (width direction) of the stroller 10 is provided with a leg portion 17 that connects the pair of front legs 22 and a rear connecting member 19 that connects between the pair of wheel holding mechanisms 40.

The stroller 10 having the above-described overall configuration can be folded by rotating the respective structural members. Specifically, the handle 13 disposed at the back push position is first pulled up toward the upper rear side, and then pressed downward, whereby the bracket 16 can be rotated clockwise with respect to the rear leg 24 in FIG. With this operation, the arm portion 28 and the side members 18 are rotated in the clockwise direction with respect to the connecting member 26 in FIG. By the above operation, the handle 13 and the forefoot 22 are disposed close to each other in a side view, and are disposed substantially in parallel, and the arrangement position of the handle 13 is lowered. In this way, the stroller can be folded, and the size of the stroller in the front-rear direction and the up-and-down direction can be reduced. On the other hand, when the stroller 10 is to be unfolded from the folded state, it is only necessary to follow the reverse of the above folding.

In this specification, the terms "before", "after", "upper" and "below" of the stroller refer to the infants who are riding on the stroller 10 in the unfolded state, unless otherwise specified. "Before", "After", "Up" and "Bottom" of the benchmark. Therefore, the "front and rear direction" of the stroller 10 corresponds to the direction of the lower left and upper right of the paper surface of Fig. 1. Further, if there is no special instruction, "front" is the side facing the infant who rides, that is, the lower left side of the paper surface of Fig. 1 is the front side of the stroller 10. On the other hand, when the ground plane of the stroller 10 is a horizontal plane, the "up and down direction" indicates the vertical direction. Further, the "horizontal direction" refers to the width direction and is perpendicular to both the "front-rear direction" and the "up-and-down direction".

Next, the wheel holding mechanism 40 provided at the lower end of the rear leg 24 will be described mainly with reference to Figs. 3 to 13 . A wheel holding mechanism 40 is provided at a lower end of the pair of rear legs 24, respectively. The two wheel holding mechanisms 40 for the rear wheels are identical in construction to each other. As described above, the wheel holding mechanism (wheel holding device) 40 is a mechanism having a wheel (rear wheel) 45 held in rotation and including a brake mechanism 50 that can restrict the rotation of the wheel 45. Specifically, the configuration is as follows.

As shown in FIG. 3, as previously explained, the wheel retaining mechanism (wheel retaining device) 40 maintains the wheel 45 rotatable and rotatable. The specific structure of the wheel holding mechanism 40 includes a brake mechanism 50, an axle 49 held by the brake mechanism 50, a wheel 45 attached to the axle 49, and a caster member 41 disposed between the rear leg 24 and the brake mechanism 50.

The caster member 41 has a fixed portion 42 fixed to the rear leg 24, and a swing portion 43 that is rotatably coupled to the fixed portion 40 and fixed to the brake mechanism 50. The turning portion 43 is rotatable relative to the fixed portion 42 about a direction in which the rotation axis La of the wheel 45 drawn by the axle 49 intersects, and is generally centered on a direction orthogonal to the rotation axis line La (the turning axis Lb). Further, by the rotation of the turning portion 43 with respect to the fixed portion 42, the wheel 45 can be rotated about the turning axis Lb.

The turning portion 43 has a housing portion 44a that opens downward. The accommodating portion 44a can be inserted into the joint portion 62 of the body member 60 of the brake mechanism 50, which will be described later, from below. The connecting portion 62 of the main body member 60 of the brake mechanism 50 is formed with an axle opening 62a through which the axle 49 passes, and the turning portion 43 is also formed with a through hole at a position facing the axle opening 62a of the connecting portion 62 of the receiving portion 44a. 44b. Further, the axle 49 extends through the axle opening 62a of the main body member 60 and the through hole 44b of the turning portion 43. Thus, since the axle 49 is through the casters Since both the turning portion 43 of the member 41 and the body member 60 of the brake mechanism 50 extend, the turning portion 43 of the caster member 41 and the brake mechanism 50 can be held in a more stable state by the axle 49.

Further, as described above, the caster member 41 is provided with a locking mechanism for restricting the rotation of the turning portion 43 with respect to the fixed portion 42. Including the locking mechanism, the other configuration of the caster member can be constituted by a known configuration, for example, as disclosed in JP2008-254688A. Therefore, in the present specification, a more detailed description about the caster member 41 will be omitted.

Next, the brake mechanism 50 will be described. As shown in FIGS. 3 to 5, the brake mechanism 50 has a body member 60, a sliding member 80 slidable in one direction with respect to the body member 60, and a rocking member 100 rotatably attached to the body member 60. The slide member 80 can be held at the first holding position shown in FIGS. 4 and 5 or the second holding position shown in FIG. 6 with respect to the main body member 60. In the present embodiment, the sliding member 80 is held by the main body member 60, and is slidable in the vertical direction with respect to the main body member 60, and the second holding position is shifted from the first holding position to the one side (the lower side) along the sliding direction ds of the sliding member 80. ).

As shown in FIGS. 5 and 6, the sliding member 80 has an operation piece 88 engageable with the rocking member 100. The swinging member 100 has the first engaging claws 110 and the second engaging claws 115, and the first engaging claws 110 can be engaged with the operating piece 88 of the sliding member 80 that slides from the second holding position to the first holding position, and the second engaging claws The engagement claw 115 is engageable with the operation piece 88 of the slide member 80 that slides from the first holding position to the second holding position. The rocking member 100 is engaged with the sliding member 80 of the main body member 60 by the first engaging claws 110 and the second engaging claws 115, and is disposed at the first position when the sliding member 80 is held at the first holding position, and is slid Member 80 remains in the second guarantee When the position is held, it is placed in the second position.

As shown in FIGS. 3 and 5, the wheel 45 has a plurality of (in the illustrated example, five) ridges 46 extending radially about the rotation axis La, and the rocking member 100 has a snap fit with the ridge 46. Brake mechanism pin 101. When the rocking member 100 is disposed in the first configuration (unrestricted position), the brake pin 101 is separated from the ridge 46 to make the wheel 45 rotatable. On the other hand, when the rocking member 100 is disposed in the second arrangement (release position), as shown in FIG. 6, the brake pin 101 is disposed between the protrusions 46 to restrict the rotation of the wheel 45. In other words, when the sliding member 80 is held in the second holding position, the rotation of the rear wheel 45 can be restricted to restrict the movement of the stroller 10.

The illustrated brake mechanism 50 further has a pressing member 52 that is supported by the body member 60. The pressing member 52 presses the sliding member 80 from the one side (lower side) toward the other side (upper side) along the sliding direction (one direction) ds of the sliding member 80 to press the body member 60. Further, the sliding member 80 is configured such that when pressed in the sliding direction ds from the upper side toward the lower side, the pressing force of the pressing member 52 returns to the upper side and remains at the position, which is the first shown in FIG. The engagement claw 110 holding position is changed interactively with the second holding position shown in FIG. 6. An example of the pressing member may be constituted by an elastic member such as a spring or a rubber.

Further, the illustrated brake mechanism 50 has an operating member 55 that is movably attached to the body member 60. By operating the operating member 55 against the body member 60, the sliding member 80 can be slid relative to the body member 60. The operating member 55 is swingably attached to the body member 60 as an operating lever. The operating member 55 is swingably attached to the body member 60 through the mounting pin 56. Further, the operation member 55 is connected to the slide member 80 through the connection pin 57. For operating components The hole 55a through which the connecting pin 57 is provided is a long hole. Therefore, the rocking motion of the operating member 55 with respect to the body member 60 can be smoothly converted into the sliding motion of the sliding member 80 in one direction ds of the body member 60.

Hereinafter, this constituent element will be described in more detail in the order of the body member 60, the sliding member 80, and the rocking member 100.

The main body member 60 is formed of the first component 61 and the second component 77. In Fig. 8, the second part 77 is indicated by a two-dot chain line. Further, in FIGS. 9 to 11, the first member 61 from which the main member 60 of the second component 77 has been removed is displayed together with the sliding member 80. The second component 77 is formed as a cover by forming a housing space for accommodating the sliding member 80 together with the first component 61.

The accommodating space is configured such that the sliding member 80 housed inside can move only in one direction (sliding direction) ds. The accommodating space is opened upward, and as shown in FIGS. 3 to 8 , the sliding member 80 accommodated in the accommodating space of the main body member 60 extends upward from the main body member 60 . Further, as shown in FIGS. 5 to 7, a portion where the housing space of the main body member 60 is formed is formed with a hole 79 through which the operation piece 88 of the sliding member 80 can pass. The hole 79 is extended in one direction ds corresponding to the operation piece 88 of the sliding member 80 sliding in one direction ds. In the illustrated example, the operation piece 88 abuts against one end side and the other end side of the hole 79, and the range in which the slidable member 80 slides in one direction is divided.

The first component 61 has the above-described coupling portion 62 that is coupled to the caster member 41 as a body member that supports the second component 77, a bottom portion 63 that supports the second component 77 from below, and a rising portion 65 that extends upward from the bottom portion 63. The connecting portion 62, the bottom portion 63, and the rising portion 65 are integrally formed to constitute the first component 61. The connecting portion 62 forms a through hole 62a through which the axle 49 passes. Through A pair of wheels 45 are attached to both sides of the axle 49 of the through hole 62a to sandwich the body member 60 therebetween. Further, a through hole 66a through which the mounting pin 56 for attaching the operating member 55 is inserted is formed above the rising portion 65. Further, the rising portion 65 and the second member 77 of the first component 61 are formed with through holes 66b through which the mounting pins 58 for swinging the rocking member 100 to the main body member 60 are inserted. Further, the through hole 66a through which the mounting pin 56 for mounting the operating member 55 is inserted is formed such that the rocking axis Lc of the operating member 55 is parallel to the rotational axis La of the wheel 45. Similarly, the through hole 66b through which the mounting pin 58 for mounting the rocking member 100 penetrates is formed such that the rocking axis Ld of the rocking member 100 is parallel to the rotation axis La of the wheel 45.

The erecting portion 65 has an engaging surface 68 which serves as a surface facing the sliding member 80, that is, a surface for accommodating the accommodating space for accommodating the sliding member 80, and is used for engaging with the sliding member 80 to move the sliding member 80. It is held in the first holding position or the second holding position. As shown in FIG. 12, the engaging surface 68 has a first raised portion 70 and a second raised portion 69 located below the first raised portion 70. The first raised portion 70 is viewed from a direction orthogonal to both the sliding direction ds of the sliding member 80 and the rotation axis La of the wheel 45, and is a first to third corner portions 70a to 70c having a ridge and a concave portion. The planar shape of the fourth corner portion 70d of the strip is raised. The engagement surface 68 is configured to hold the slide member 80 in the first holding position or the second holding position by engagement with the sliding member 80, and the details of the engagement with the sliding member 80 will be described later.

Next, the sliding member 80 will be described in detail. The sliding member 80 has an engaging member 91 slidably supported by the body member 60 slider 81 and supported and engaged with the slider 81. The slider 81 has the above operation engaged with the rocking member 100 Slice 88. As shown in FIGS. 9 to 11, the operation piece 88 is oriented from the main body member 60 in the direction intersecting the sliding direction ds, preferably in the direction orthogonal to the sliding direction ds, and more preferably in the direction of the rotation axis La of the wheel 45. Prominent in parallel. In the example of the drawings, the sliding member 80 has a pair of operation pieces 88 projecting toward both sides in a direction parallel to the rotation axis La.

A front end portion of each of the operation pieces 88 located outside the body member 60 is provided with a plate-shaped head portion 87. Although the drawings other than those in FIGS. 3 and 4 are omitted, the second member 77 of the main body member 60 is provided with a cover 78 for covering the operation piece 88 and the head portion 87. The cover 78 extends over at least a portion of the path of movement of the operating piece 88 of the sliding member 80. By providing the lid body 78, it is possible to prevent the operation piece 88 and the head portion 87 which are exposed and moved from the main body member 60 from being entangled with clothes such as the outside, and the stable sliding of the operation piece 88 and the head portion 87 can be ensured.

As shown in Fig. 8, the slider 81 is configured as an elongated member that extends in the sliding direction. A through hole 80a through which a connecting pin 57 for connecting to the operating member 55 is inserted is formed in an upper portion of the slider 81. Further, a traverse hole 85 extending in a direction orthogonal to both the sliding direction ds of the sliding member 80 and the rotation axis La of the wheel 45 is formed in the slider 81. Further, the slider 81 is formed with a receiving hole 83 that opens downward.

On the other hand, as shown in FIG. 8, the engaging member 91 has a shaft portion 95 that is inserted into the traverse hole 85 of the slider 81, and a wrist portion that extends from the shaft portion 95 and engages with the engaging surface 68 of the body member 60. 92. The wrist portion 92 of the engaging member 91 extends between the engaging surface 68 of the slider 81 and the body member 60. On the other hand, the surface of the slider 81 on the side opposite to the engaging surface 68 is provided with a spacing protrusion 82. Therefore, the space for arranging the wrist portion 92 can be ensured at the rising portion 65 of the body member 60 and the sliding member 80. between.

A pressing member 52 is inserted into the receiving hole 83 of the slider 81. As shown in FIG. 8, the pressing member 52 configured as a compression spring in the example of the drawing extends between the bottom portion 63 of the body member 60 and the shaft portion 95 of the engaging member 91 extending across the receiving hole 83. Therefore, the pressing member 52 passes through the shaft portion 95 of the engaging member 91 to press the slider 81 in the sliding direction (up-and-down direction) from the lower side (one side) toward the upper side (the other side).

As shown in FIGS. 8 to 11, the arm portion 92 of the engaging member 91 has the engaging piece 93b and the posture holding piece 93a at the both ends in the longitudinal direction. The engagement piece 93b and the posture holding piece 93a protrude toward the side separated from the slider 81, that is, toward the side of the rising portion 65. The engagement piece 93b and the posture holding piece 93a have a circular cross-sectional shape in a cross section perpendicular to the protruding direction. Further, by the engagement of the engaging piece 93b of the engaging member 91 with the engaging surface 68 of the body member 60, the sliding member 80 is moved from the upper side (the other side) toward the lower side (the side) in the sliding direction ds. When pressed to the bottom, the position held by the pressing force of the pressing member 52 to return to the upper side changes alternately with the first holding position shown in FIG. 5 and the second holding position shown in FIG. On the other hand, the posture maintaining piece 93a can maintain the posture (tilt) of the wrist portion 92 with respect to the rising portion 65 of the body member 60, in other words, the wrist portion 92 extends along the sliding direction ds, and the engaging piece 93b and the engaging surface 68 are secured. Stable engagement.

Hereinafter, the engagement of the engagement piece 93b with the engagement surface 68 will be described in detail. First, as shown in FIG. 9, the traverse hole 85 of the slider 81 configures the upper side (the other side) of the sliding direction (one direction) ds as the flat surface 85a. On the other hand, the shaft portion 95 of the engaging member 91 has a long side portion 95a composed of a straight line and a short side portion 95b composed of a straight line shorter than the long side portion 95a, in a cross section perpendicular to the longitudinal direction thereof. And a cross-sectional shape surrounded by a curved portion 95c formed by, for example, an arc (arc or elliptical arc) disposed on one side of the sliding direction. Further, the size of the slider 81 across the hole 85 is larger than the size of the shaft portion 95 of the engaging member 91. Therefore, the shaft hole 95 can be rotated in the traverse hole 85 with its longitudinal direction as the center.

Further, the shaft portion 95 of the engaging member 91 is pressed upward from the lower side by the pressing member 52. Therefore, when only the pressing force from the pressing member 52 acts on the engaging member 91, the surface of the shaft portion 95 is pressed into the state shown in Fig. 9 (i.e., the long side portion 95a of the shaft portion 95 is in contact with each other. The state of the flat surface on the upper side of the hole 85) is such that the length x (FIGS. 9 to 11) of the sliding direction from the upper flat surface 85a of the hole 85 to the lower end of the shaft portion 95 is shortened. Therefore, the position of the engaging piece 93b in the direction orthogonal to the sliding direction ds is pressed from the position shown in Fig. 10 or Fig. 11 toward the position shown in Fig. 9.

Next, the engaging surface 68 of the main body member 60 which is in contact with the engaging piece 93b of the engaging member 91 will be described. The engagement surface 68 is provided with a first raised portion 70 that protrudes toward the sliding member 80 side and a second raised portion 69 that is located below the first raised portion 70. The first raised portion 70 has a planar shape in which a triangular corner of the three convex corner portions 70a, 70b, 70c and one concave corner portion 70d are drawn. As shown in FIG. 12, the first convex corner portion 70a is located on the most other side (upper side) in the sliding direction ds, and is located on the most side (the left side in FIG. 12) in the direction orthogonal to the sliding direction ds. The second convex corner portion 70b is located on the other side (the right side in FIG. 12) in the direction orthogonal to the sliding direction ds. Further, the fourth concave corner portion 70d is disposed between the second convex corner portion 70b and the third convex corner portion 70c in the direction orthogonal to the sliding direction ds. Further, the contours of the second raised portion 69 and the first raised portion 70 are formed on the side opposite to each other, and the contours of the first raised portion 70 and the second raised portion 69 are opposite to each other. Make up.

In FIG. 12, when the sliding member pressed by the pressing member 52 is held at the first holding position, the position at which the engaging piece 93b of the engaging member 91 is disposed (the pressing position of the engaging piece) is a solid line. Said. The pressing position of the engaging piece is located closer to the upper side (the other side) than the first convex corner portion 70a in the sliding direction ds, and is located at the first convex corner portion 70a in the direction orthogonal to the sliding direction ds. Between the third convex corner portion 70c.

The sliding member 80 and the body member 60 configured by the above configuration each slide the sliding member 80 from the other side end (upper end) in the slidable range to the one side end (lower side end) with respect to the main body member 60 in the sliding direction. When the engaging piece 93b moves along the arrow of FIG. 12, only the half circumference around the first raised portion 70 is moved. In the present embodiment, the one end (lower end) of the slidable range of the sliding member 80 is determined by the contact of the operation piece 88 of the sliding member 80 with the side (lower end) of the hole 79 of the body member 60. The other side end (upper end) of the slidable range of the sliding member 80 is determined in accordance with the contact of the operating piece 88 of the sliding member 80 with the other side end (upper end) of the hole 79 of the body member 60.

First, when the sliding member 80 is disposed at the first holding position along the other side in the sliding direction, as shown in FIGS. 8 , 9 , and 12 , the engaging piece 93 b of the sliding member 80 is the first one of the body member 60 . The ridges 70 are closer to the upper side and are separated from the first ridges 70. When the sliding member 80 is pressed from the other side (upper side) toward the one side (lower side) in the sliding direction ds, the engaging piece 93b comes into contact with the first raised portion 70, and the first first raised portion 70 is connected. The convex corner portion 70a slides on the inclined surface of the second convex corner portion 70b. At this time, the engaging member 91 of the sliding member 80 resists the pressing force of the pressing member 52 from the long side portion of the shaft portion 95. The state of Fig. 9 in which 95a is in surface contact with the flat surface 85a of the traverse hole 85 is rotated about the axial sliding direction ds of the shaft portion 95 as shown in Fig. 10 . In particular, when the engagement piece 93 passes near the second convex corner portion 70b, as shown in FIG. 10, the short side portion 95b of the shaft portion 95 is in surface contact with the flat surface 85a of the traverse hole 85. Further, when the sliding member 80 is further slid toward the one side and the engaging piece 93b passes over the second convex corner portion 70b of the first raised portion 70, the pressing force of the pressing member 52 is centered on the axial direction of the shaft portion 95. Swirl in the opposite direction to the present. The operator can grasp the situation by hand or sound.

Here, or after the slide member 80 is moved to one side end (lower end side) of the slidable range, the pressing of the slide member 80 toward one side of the sliding direction ds is released. As a result, the sliding member 80 is moved toward the other side (upper side) by the pressing from the pressing member 52. Further, the engagement piece 93b is guided to the inclined surface between the second convex corner portion 70b and the fourth concave corner portion 70d of the first raised portion 70 and/or the second raised portion 69, and is induced to the dotted line of FIG. The position is accommodated in the concave fourth corner portion 70d. Further, the pressing piece 93b can be maintained in the state of being accommodated in the concave fourth corner portion 70d by the pressing force of the pressing member 52. The position of the sliding member 80 at this time is the second holding position shown in FIG.

When the sliding member 80 in the second holding position is pressed again from the other side toward the side in the sliding direction ds, the engaging piece 93b is moved toward the concave portion 70d and the third convex corner portion 70c that connect the first raised portion 70. The inclined surface and the second raised portion 69 are guided and passed over the third convex corner portion 70c of the first raised portion 70. The operator can grasp the situation by hand or sound. Here, or after the slide member 80 is moved to one side end (lower end side) of the slidable range, the pressing of the slide member 80 toward one side of the sliding direction ds is released. As a result, the sliding member 80 The pressing force from the pressing member 52 is moved toward the other side (upper side) until the other side end (upper side end) of the slidable range, and the engaging piece 93b is moved to be separated from the first ridge portion 70. Figure 12 is the solid line position. The position of the sliding member 80 at this time is the first holding position shown in FIG.

When the engaging piece 93b is guided to the inclined surface of the third convex corner 70c and the first convex corner 70a of the first raised portion 70 and passes through the vicinity of the first convex corner 70a, as shown in FIG. It is shown that the shaft portion 95 is rotated and only the connection portion between the long side portion 95a of the shaft portion 95 and the curved portion 95c is in contact with the flat surface 85a of the traverse hole 85. When the sliding member 80 is moved to the first holding position, the engaging piece 93b is disposed on the other side (upper side) of the inclined surface connecting the first convex corner 70a and the second convex corner 70b of the first raised portion 70. ).

As described above, each time the sliding member 80 is slid from the other side toward the side with respect to the body member 60 in the sliding direction ds, the pressure applied by the pressing member 52 returns to the other side and the position is maintained. The first holding position is changed interactively with the second holding position.

Next, the rocking member 100 will be described in detail with reference to FIGS. 3 to 8. As described above, the rocking member 100 is engaged with the operation piece 88 of the slide member 80, and is disposed at the first position when the slide member 80 is held in the first holding position, and is held when the slide member 80 is held in the second holding position. It is placed in the second position shown in FIG. 6.

As shown in FIG. 13, the rocking member 100 has a pair of plate-like portions 105, a connecting shaft portion 103 that connects the pair of plate-like portions 105, and a brake pin 101 that extends outward from each of the plate-like portions 105. When the rocking member 100 is held in the second position, as shown in FIG. 6, the brake pin 101 will enter the adjacent two protrusions of the wheel 45. Between 46, the rotation of the wheel 45 is restricted. On the other hand, when the rocking member 100 is held in the first position, as shown in FIG. 5, the brake pin 101 is separated from the ridge 46 of the wheel 45, and the wheel 45 is rotatable.

The pair of plate-like portions 105 are arranged to sandwich the body member 60 with respect to one of the sliding members 80. Further, each of the plate-like portions 105 is formed with a through hole 106 through which the insertion pin 58 for oscillatingly attaching the rocking member 100 to the main body member 60 is passed. As described above, the rocking axis Ld of the rocking member 100 is parallel to the rotation axis La of the wheel 45. Further, the plate-like portion 105 is formed with a first engagement claw 110 and a second engagement claw 115 that engage with the operation piece 88. When the operation piece 88 is engaged with the first engagement claw 110 or the second engagement claw 115, the swinging member 100 is swung in response to the sliding of the sliding member 80. The first engagement claw 110 and the second engagement claw 115 will be described in detail later.

A pair of brake pins 101 extend toward both outer sides in a direction parallel to the rocking axis Ld. As shown in FIG. 1, the wheel holding mechanism 40 can hold the wheels 45 on both outer sides of the rotation axis La of the wheel 45. Each of the wheels 45 is formed on a side opposite to the wheel holding mechanism 40 with a ridge 46 extending from the rotation axis La of the wheel 45 in a normal manner (refer to FIG. 6). Moreover, the pair of brake pins 101 can be engaged with the protrusions 46 on the corresponding side. The pair of brake pins 101 and the coupling shaft portion 103 are arranged on a straight line along the rotation axis line La of the wheel 45. As shown in FIG. 13, a reinforcing rib 107 for reinforcing the brake pin 101 is formed between the plate portion 105 and the brake pin 101.

The connecting shaft portion 103 passes below the body member 60. On the other hand, as shown in FIG. 8, the receiving portion (concave portion) 64 for receiving the shaft portion 103 is formed on the lower surface of the body member 60 formed by the bottom portion 63. Along the rocking member When the rocking axis Ld of 100 is viewed, the contour of the receiving portion 64 matches the moving trajectory of the connecting shaft portion 103 when the rocking member 100 is rocked. Further, as shown in Fig. 8, both ends of the receiving portion 64 are partitioned by the wall portion 64a and the wall portion 64b. When the rocking member 100 is disposed at the first position (release restriction position), the connection shaft portion 103 is disposed at a position adjacent to one of the wall portions 64a, and the swinging of the rocking member 100 beyond the first position can be restricted. Moreover, when the rocking member 100 is disposed at the second position (restricted position), the connecting shaft portion 103 is disposed at a position adjacent to the other wall portion 64b, and the shaking of the rocking member 100 beyond the second position can be restricted. In other words, the shaking of the rocking member 100 with respect to the body member 60 can be restricted between the first position (release restriction position) and the second position (restricted position) by the contact of the rocking member 100 with the body member 60.

Next, the first engagement claws 110 and the second engagement claws 115 formed on the plate-like portion 105 of the rocking member 100 will be described. The first engagement claws 110, the second engagement claws 115, and the plate-like portion 105 extend on a surface orthogonal to the rotation axis line La of the wheel 45. In this example, the operation pieces are in operation with the slide member 80. The protruding direction of 88 extends on the plane orthogonal to the surface. Further, the side end faces of the first engaging claws 110 and the second engaging claws 115 constituting a part of the plate-like portion 105 are in contact with the side faces of the operation piece 88.

The first engaging claw 110 has an abutting surface 111 that comes into contact with the operation piece 88 of the sliding member 80 from the other side (upper side) of the sliding direction (one direction) ds. As shown in FIG. 6, when the sliding member 80 is held in the second holding position, the abutting surface 111 is located on the moving path ra of the operation piece 88 when the sliding member 80 slides. Therefore, the abutting surface 111 comes into contact with the operation piece 88 of the sliding member 80 that slides from the second holding position toward the first holding position. When the sliding member 80 is moved to the first holding position, the abutting surface 111 moves from the other side (upper side) of the sliding direction to The position of the operating piece 88 is adjacent. The position of the rocking member 100 at this time is the first position (release restriction position) shown in FIG.

Further, in the state shown in Fig. 5, the sliding member 80 pressed by the pressing member 52 toward the other side in one direction is held by the operation piece 88 abutting against the other end of the hole 79 of the body member 60. In the first holding position. At this time, the rocking member 100 can abut against the operation piece 88 from the other side (upper side) of the sliding direction ds by the first engagement claw 110, thereby restricting the swing from the first position to the second position. At the same time, by the abutment shaft portion 103 of the rocking member 100 abutting against the wall portion 64a of the body member 60, the rocking member 100 can be restricted from swinging beyond the first position, that is, from the first position of the rocking member 100 toward the second position. Shake on the opposite side.

According to the brake mechanism 50 described above, the state in which the wheel 45 is rotatable can be stably maintained.

As shown in FIG. 5, the second engagement claw 115 is provided to be separated from the first engagement claw 110. A recess 109 is formed between the first engaging claw 110 and the second engaging claw 115. As shown in FIG. 5, the operation piece 88 of the slide member 80 held in the first holding position can be disposed in the recess 109 between the first engagement claw 110 and the second engagement claw 115. On the other hand, the front end of the operation piece 88 is provided with a head portion 87. As shown by the two-dot chain line of FIG. 5, the head portion 87 extends over a portion of the first engaging claw 110 and a portion of the second engaging claw 115. According to the head portion 87, it is possible to effectively prevent the operation piece 88 from being caught between the first engagement claw 110 or the second engagement claw 115, and the operation piece 88 and the first engagement claw 110 or the second card can be secured. The claws 115 are stably engaged.

As shown in FIG. 5, the second engagement claw 115 has a position facing the operation piece 88 of the slide member 80 when the slide member 80 is held at the first holding position. The first surface 116 disposed and the second surface 117 adjacent to the first surface 116. The first surface 116 of the second engagement claw 115 is opposed to the sliding member 80 held by the first holding position from the side (lower side) of the sliding direction ds of the sliding member 80. Therefore, the first surface 116 of the second engagement claw 115 comes into contact with the sliding member 80 that slides from the first holding position toward the second holding position.

When the slide member 80 is moved to the second holding position, as shown in FIG. 6, the second engagement claws 115 of the swinging member 100 are disposed on the movement path ra from one direction (sliding direction) ds along the operation piece 88, Deviate to the position of the side of the intersection (particularly orthogonal) with the one direction ds. The position of the rocking member 100 at this time is the second position at which the brake pin 101 is engaged with the protrusion 46 of the wheel 45.

Further, in order to hold the slide member 80 at the second holding position, the rocking member 100 must be pressed to a position that passes over the other side (lower side) of the second holding position in one direction ds.

In other words, it is necessary to press the rocking member 100 downward from the state shown in Fig. 6, as shown in Fig. 7. At this time, as shown in FIG. 6, the rocking member 100 is disposed on the side of the movement path ra from one direction (sliding direction) ds along the operation piece 88, and deviates to the side (particularly orthogonal) of the one direction ds The position of the side. In other words, the rocking member 100 is not located on the moving path ra along one direction (sliding direction) ds of the operation piece 88. Therefore, when the rocking member 100 goes from the first position to the second position, it is not necessary to move beyond the second position. Further, in the embodiment described above, the rocking member 100 cannot move beyond the second position by the connecting shaft portion 103 of the rocking member 100 abutting against the wall portion 64b formed in the receiving portion 64 of the body member 60.

According to this aspect, as shown in FIG. 6, it is not necessary to make the brake plug 101 The depth of the engaging protrusion 46 is deeper than the position of the brake pin 101 of the rocking member 100 at the second position. Therefore, as shown in FIG. 6, the brake pin 101 of the rocking member 100 at the second position can be located near the valley between the adjacent two ridges 46, and the stable engagement of the brake pin 101 with the ridge 46 can be ensured. The rotation of the wheel 45 is stably restricted. Again, there is no need to increase the length of the ridges 46, or thereby increase the travel of the brake pin 101. Thereby, the brake mechanism 50 can also be miniaturized. Further, since it is not necessary to increase the size of the brake mechanism 50, the brake mechanism 50 can be applied to the conventional wheel holding mechanism and the stroller.

Further, as shown in FIG. 6, when the slide member 80 is held at the second holding position, the second engagement claws 115 of the swinging member 100 are disposed in a moving path from one direction (sliding direction) ds along the operation piece 88. Ra deviates to the position of the side of the intersection (particularly orthogonal) with the one direction ds. Further, the rocking member 100 at the second position can abut the operation piece 88 from the direction in which the second engagement claw 115 intersects with the one direction ds, thereby restricting the swing from the second position to the first position. Therefore, when the sliding member 80 is held in the second holding position, the rocking member 100 is held at the second position, and the engagement between the brake pin 101 and the ridges 46 of the wheel 40 can be continuously ensured, and the rotation of the wheel 45 can be restricted.

According to the above aspect, even if the force of rotating the wheel 45 of the stroller 10 is generated by, for example, the stroller 10 on the inclined surface, the brake pin 101 and the wheel 40 can be effectively prevented from being accidentally released. The engagement of the ridges 46. Therefore, the stroller 10 can be maintained in a more stable state.

In particular, in the embodiment described above, the second engagement claw 115 has a second surface 117 adjacent to the first surface 116. And, when the sliding member 80 is held at the second When the position is held, the second surface 117 is disposed at a position facing the operation piece 88 of the slide member 80 from the side orthogonal to the one direction (sliding direction) ds, and the second surface 117 is in contact with the operation piece 88. The rocking member 100 can be restricted from swinging from the second position (restricted position) to the first position (released position). As shown in FIG. 6, the moving path rb of the second surface 117 when the rocking member 100 is rocked is crossed with the sliding direction (one direction) ds of the sliding member 80, and the moving path of the operating piece 88 when the sliding member 80 is slid. Ra. Further, the operation piece 88 of the slide member 80 held in the second holding position is located on the movement path rb of the second surface 117 when the rocking member 100 is rocked. Therefore, by engaging the operation piece 88 with the second surface 117 of the second engagement claw 115, the rocking member 100 can be stably held at the second position to restrict the rotation of the wheel 45.

Further, in the above-described embodiment, the second surface 117 of the second engagement claw 115 extends in parallel with the sliding direction (one direction) ds of the sliding member 80 when the sliding member 80 is at the second holding position. Thereby, the operation piece 88 can receive the force from the second surface 117 in a dispersed manner. Therefore, the damage of the brake mechanism 50 or the like can be effectively prevented, and the rocking member 100 can be stably held at the second position extremely, and the rotation of the wheel 45 can be restricted. On the other hand, when the sliding member 80 is held at the second holding position, the surface of the operation piece 88 facing the second surface 117 is held by the sliding member 80 at the second holding position, preferably The second face 117 extends in parallel.

Further, the rocking member 100 using the operation piece 88 is restricted from the second position to the first position, and it is preferable that the sliding member 80 moves to one side in the sliding direction (one direction) and moves over the second holding position to be slidable. It can also be used when one of the ranges is at the side. In other words, as shown in FIG. 7, the sliding member 80 is located In the case of the slidable range, it is preferable that the second engagement claw 115 is disposed along the side when the operation piece 88 of the slide member 80 abuts against one side end of the long hole 79. The movement path ra in one direction of the operation piece 88 is deviated to the position of the side, and by the second engagement claw 115 abutting the operation piece 88 from the direction intersecting with the one direction ds, the rocking member 100 can be restricted from the second position. Shake. Further, the operation piece 88 of the slide member 80 located at the most side in the slidable range of the sliding member 80 is preferably located on the movement path rb of the second surface 117 when the rocking member 100 is rocked.

However, the brake mechanism disclosed in the above-mentioned CN1572619A is configured such that the brake pin of the operating member is engaged between the two projections of the wheel, thereby maintaining the engagement state between the brake pin and the projection. According to the above conventional configuration, the shape of the protruding portion is limited, and depending on the rotational position of the wheel, the brake pin sometimes collides with the top of the protruding portion, and the brake pin cannot be caught between the two protruding portions. At this time, in order to restrict the rotation of the wheel to apply the brake to the stroller, it is necessary to operate not only the brake pin but also the step of adjusting the rotational position of the wheel. On the other hand, the brake mechanism 50 of the present embodiment can avoid the above-mentioned conventional inconvenience, and can extremely easily switch between the state in which the wheel 45 of the stroller 10 is rotated and the state in which the wheel 45 of the stroller 10 can be rotated.

In the above-described embodiment, when the slide member 80 is held at the second holding position, the second engagement claw 115 of the swinging member 100 located at the second position (restricted position) is disposed in a direction from one of the operation pieces 88. The movement path ra of ds deviates to the position of the side, and the second engagement claw 115 abuts the operation piece 88 from the direction intersecting with the one direction ds, thereby restricting the rocking member 100 from the second position Shake to the first position. Therefore, the rotation of the wheel 45 can be stably restricted.

Further, various modifications can be made to the above embodiment. An example of the modification will be described below.

In the above embodiment, the brake mechanism 50 is attached to the wheel holding mechanism 40, but the invention is not limited thereto. The brake mechanism 50 can be supported, for example, by the rear coupling member 19 and engaged with the wheel or axle of the separately formed wheel holding mechanism to restrict wheel rotation.

Moreover, in the above-described embodiment, a specific example of a structure in which the sliding member 80 can be held in the first holding position or the second holding position will be described. However, the above-described structure is only an example, and the structure for holding the sliding member 80 to the first holding position or the second holding position may be appropriately changed by, for example, the structure disclosed in WO2010/143300.

Further, in the above-described embodiment, a specific example in which the brake pin 101 and the projection 46 of the wheel 45 are engaged with the rocking member 100 to restrict the rotation of the wheel 45 will be described. However, the above configuration is only an example, and the engagement of the rocking member 100 for restricting the rotation of the wheel 45 with the wheel 45 or the axle 49 can be realized by any configuration.

Further, in the above-described embodiment, the sliding member 80 is operated by the operation member 55 configured as the operation lever, but the present invention is not limited thereto. The configuration of the operating member 55 can be appropriately changed, and the operating member can also be omitted.

Further, in the above embodiment, the brake mechanism 50 is fixed to the leg 24 via the caster member 41. However, the brake mechanism 50 can also be directly fixed to the foot 24. In other words, the wheel holding mechanism 40 having the brake mechanism 50 can also keep the wheel unrotatable.

In the above description, the wheel holding mechanism 40 provided on the right and left rear legs 24 is configured to be the same, but is not limited thereto. For example, a communication mechanism that transmits the motion of the sliding member 80 of one of the wheel holding mechanisms 40 to the sliding member 80 of the other wheel holding mechanism 40 may be provided. According to the above modification, the left and right wheel holding mechanisms 40 can be operated by operating one of the wheel holding mechanisms 40.

Furthermore, the wheel holding mechanism 40 can be attached to the front leg 22 or to the front leg 22 and the rear leg 24. Furthermore, the wheel holding mechanism 40 described above can be mounted only to the one-side rear foot 24.

Further, the structure of the stroller body 11 of the stroller 10 described in the above embodiment is merely an example. For example, the frame portion 15 which is not foldable can also be constructed. Further, in the stroller body 11 of the stroller 10 described in the above embodiment, the handle 13 can be oscillated between the back push position and the front push position. However, the present invention is not limited thereto, and the handle 13 may be fixed to the back push position. .

However, although a few modifications of the above embodiment have been described above, it is needless to say that a plurality of modifications can be combined as appropriate.

10‧‧‧ baby carriage

11‧‧‧ Baby stroller body

13‧‧‧Hands

15‧‧‧ Frame Department

16‧‧‧ bracket

17‧‧‧ by foot

18‧‧‧ Side members

19‧‧‧ Rear connecting members

20‧‧‧ wheel engagement device

22‧‧‧Front foot

24‧‧‧ hind feet

26‧‧‧Linking components

28‧‧‧ Wheel mounting components

30, 40‧‧‧ wheel retention mechanism

31‧‧‧ engaging members

33‧‧‧ ribs

35‧‧‧ front wheel

41‧‧‧ caster components

42‧‧‧ Fixed Department

43‧‧‧ Circumferential

44a‧‧‧Receiving Department

44b‧‧‧through hole

45‧‧‧ rear wheel

46‧‧‧

49‧‧‧ axle

50‧‧‧ brake mechanism

52‧‧‧ Pressure members

55‧‧‧Operating components

55a‧‧ hole

56, 58‧‧‧Installation latch

57‧‧‧Link pin

60‧‧‧ Body components

61‧‧‧Part 1

62‧‧‧Connecting Department

62a‧‧‧through hole

63‧‧‧ bottom

64‧‧‧Acceptance Department

64a, 64b‧‧‧ wall

65‧‧‧立立部

66a, 66b‧‧‧through holes

68‧‧‧ engaging surface

69‧‧‧2nd ridge

70‧‧‧1st uplift

70a, 70b, 70c‧‧‧ convex corners

70d‧‧‧ concave corner

77‧‧‧Part 2

78‧‧‧ Cover

79‧‧‧ hole

80‧‧‧Sliding members

80a‧‧‧through hole

81‧‧‧Sliding parts

82‧‧‧ interval protrusion

83‧‧‧Recepted hole

85‧‧‧cross hole

85a‧‧‧flat surface

87‧‧‧ head

88‧‧‧Operating film

91‧‧‧ engaging members

92‧‧‧ wrist

93a‧‧‧ Posture Holder

93b‧‧‧Clocks

95‧‧‧Axis

95a‧‧‧Longside

95b‧‧‧Short side

95c‧‧‧ Curve Department

100‧‧‧Shake components

101‧‧‧Brake latch

103‧‧‧Connected shaft

105‧‧‧Plate

106‧‧‧through holes

107‧‧‧ reinforcing ribs

109‧‧‧ dent

110‧‧‧1st clamping claw

111‧‧‧Abutment

115‧‧‧2nd clamping claw

116‧‧‧1st

117‧‧‧2nd

La‧‧‧ axis of rotation

Lb‧‧‧ gyro axis

Lc, Ld‧‧‧ shaking axis

Ds‧‧‧ sliding direction

Ra, rb‧‧‧ moving path

X‧‧‧ length

A‧‧‧ direction

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an embodiment of the present invention, showing a wheel holding mechanism for a stroller and a stroller.

Figure 2 is a side elevational view of the stroller of Figure 1.

Fig. 3 is a side view showing the wheel holding mechanism and the brake mechanism.

Figure 4 is a perspective view showing the brake mechanism.

Fig. 5 is a side view showing the brake mechanism in the state of a rotatable wheel.

Fig. 6 is a side view showing the brake mechanism in a state where the rotation of the wheel can be restricted.

Fig. 7 is a side view showing the brake mechanism in a state different from those in Figs. 5 and 6.

Fig. 8 is an exploded side view showing the internal members of the brake mechanism.

Fig. 9 is a view showing the brake mechanism from the direction of the arrow A in Fig. 8.

Fig. 10 is a view corresponding to Fig. 9 showing a state in which the sliding member is located at a position different from the state of Fig. 9.

Fig. 11 is a view showing a state in which the slide member is located at a position different from the state of Figs. 9 and 10, corresponding to Fig. 9 and Fig. 10 .

Fig. 12 is a view showing a state in which the sliding mechanism has been removed from the brake mechanism of Fig. 9.

Figure 13 is a perspective view showing a rocking member of the brake mechanism.

10‧‧‧ baby carriage

11‧‧‧ Baby stroller body

13‧‧‧Hands

15‧‧‧ Frame Department

16‧‧‧ bracket

17‧‧‧ by foot

18‧‧‧ Side members

19‧‧‧ Rear connecting members

22‧‧‧Front foot

24‧‧‧ hind feet

26‧‧‧Linking components

28‧‧‧ Wheel mounting components

30, 40‧‧‧ wheel retention mechanism

35‧‧‧ front wheel

41‧‧‧ caster components

45‧‧‧ rear wheel

50‧‧‧ brake mechanism

La‧‧‧ axis of rotation

Lb‧‧‧ gyro axis

Claims (13)

A brake mechanism for a baby carriage, which is used for limiting a wheel rotation of a baby carriage, comprising: a body member; the sliding member is slidable in a direction relative to the body member and held in the first holding position or a holding position of the second holding position on one side of the one direction; and a rocking member rotatably attached to the body member; and the sliding member has an operation piece engageable with the rocking member, the rocking member The first engagement claw is engageable with the operation piece of the sliding member that slides from the second holding position toward the first holding position; and the second engagement claw is retained by the first engagement claw Engaging the operation piece of the sliding member that slides toward the second holding position, the rocking member is engaged with the operation piece by the first engagement claw and the second engagement claw, and the sliding member is held by In the first holding position, the first position is separated from the wheel to rotate the wheel, and when the sliding member is held at the second holding position, When the sliding member is held at the second holding position, the second engaging claw of the rocking member located at the second position is disposed along the operation piece from the second position The movement path in the one direction deviates to the position of the side, and the second engagement claw abuts from the direction intersecting the one direction The operation piece can restrict the rocking member from swinging from the second position toward the first position. The brake mechanism for a baby carriage according to the first aspect of the invention, wherein the second engagement claw of the rocking member has a first surface, and is disposed when the sliding member is held at the first holding position. a position facing the operation piece of the sliding member; and the second surface is disposed at a position facing the operation piece from the side of the sliding member when the sliding member is held at the second holding position, When the sliding member is held at the second holding position, the second surface of the second engaging claw abuts against the operation piece in a direction intersecting the one direction, thereby restricting the rocking member from the second position toward The first position is shaken. The brake mechanism for a stroller according to the second aspect of the invention, wherein the moving path of the second surface when the rocking member is rocking is a moving path of the operating piece when the sliding member slides, and is maintained in the foregoing The operation piece of the sliding member in the second holding position is located on a movement path of the second surface when the rocking member is rocked. The brake mechanism for a stroller according to the second aspect of the invention, wherein the second surface extends in parallel with the one direction when the sliding member is held at the second holding position. The brake mechanism for a stroller according to claim 1, wherein the first engaging claw of the rocking member has a contact from the other side in one direction The abutting surface of the operation piece of the sliding member, when the sliding member is held at the first holding position, the operation piece of the sliding member is located in the first engagement claw of the rocking member and the second engagement Inside the recess between the claws. The brake mechanism for a baby carriage according to claim 5, wherein the operation piece of the sliding member is formed with a head portion that extends to cover at least a part of the first engagement claw and the second engagement. At least a portion of the claw. The brake mechanism for a baby carriage according to claim 1, wherein the rocking member is rocked relative to the body member, and is restricted to the first position and the second portion by contact between the rocking member and the body member. Between locations. A brake mechanism for a stroller according to claim 1, further comprising a pressing member supported by the body member and sliding the sliding from the side to the other side in the one direction The member is pressed toward the body member, and the sliding member is configured to return to the other side by the pressing force of the pressing member every time when pressing from the other side toward the one side in the one direction The held position changes alternately between the first holding position and the second holding position. The brake mechanism for a stroller according to claim 1, further comprising an operating member operatively mounted to the body member, and by actuating the body member, the sliding member can be opposite to the sliding member The aforementioned body member slides. A wheel holding mechanism for a stroller, which can be attached to a foot of a stroller, comprising: a brake mechanism according to any one of claims 1 to 9; and an axle supported by the body of the brake mechanism The member; and the wheel are attached to the aforementioned axle. The wheel holding mechanism for a baby carriage according to claim 10, further comprising a caster member disposed between the leg portion and the body member, and connecting the leg portion and the body member, the caster The member has a fixing portion that is fixed to the leg portion, and a turning portion that is rotatably coupled to the fixing portion and that is fixed to the body member. The wheel holding mechanism for a baby carriage according to claim 11, wherein the axle extends through both the turning portion of the caster member and the body member. A stroller comprising: a stroller body having a forefoot and a rear leg; and a wheel holding mechanism for a stroller according to claim 10, which is attached to at least one of the forefoot and the rear foot.