TW201339033A - Foldable baby carriage - Google Patents

Abstract

Provided is a pass-through prevention structure of a pushing rod capable of preventing the pushing rod from passing through even during the course of folding a baby carriage, in which the foldable baby carriage comprises first frame 22, second frame 20 with its positional relationship relative to the first frame changed while the baby carriage being folded, pushing rod 34 capable of being selectively switched to a backing push position and a facing push position, blocking member 41 being movable between a first position upon moving path B of given portion 34p and a second position separated from moving path B, and a position adjustment means with its movement corresponding to the relative positional relationship of first, second frames 20, 22 for maintaining blocking member 41 upon the second position during an expanding condition of the baby carriage, and maintaining the blocking member upon the first position during a condition while the baby carriage being folding and a folded condition of the baby carriage, so as to disable pushing rod 34 from being switched by the blocking member located upon the first position.

Description

Folding stroller

The present invention relates to a stroller having a push rod that can be opened to an unfolded state when in use and foldable when not in use, and more particularly to a shifting of a push rod for a switchable rear push position and an opposite push position The technique of limiting the action.

A folding stroller having a body frame including a front leg, a rear leg, a frame, an armrest, and the like, which constitutes a body of the stroller, is known. The push rod of the car body skeleton; can be opened to be unfolded when in use, and can be folded into a compact when not in use, and in the unfolded state, the push rod can be rotated in the front-rear direction to switch the back push position and the opposite side Push the position. The stroller generally has a push rod locking mechanism that selectively maintains the push rod in the back push position and the opposite push position.

However, when the stroller is folded into a folded state, there is a case where the operator of the stroller mistakenly releases the push rod locking mechanism. As a result, the push rod is free to rotate relative to the body frame, and there is a problem that the push rod rotates through the body frame. In this way, even if the operator holds either the push rod or the body frame, the remaining one will fall over.

As a technique for solving the problem of the traverse of the pusher, Japanese Patent Laid-Open No. 2011-148449 (Patent Document 1) and Japanese Patent No. The technique of Japanese Patent Publication No. 4812948 (Patent Document 2) is known. In the stroller described in Patent Documents 1 and 2, a protruding member is formed on the armrest, and the protruding member is separated from the push rod locking mechanism in the unfolded state of the stroller, and the operation of the push rod locking mechanism is permitted. In contrast, when the stroller is folded, the armrest rotates, and the protruding member interferes with the push rod locking mechanism in the folded state of the stroller, so that the operation of the push rod locking mechanism cannot be performed.

(previous technical literature) (Patent Literature)

Patent Document 1: Japanese Laid-Open Patent Publication No. 2011-148449

Patent Document 2: Japanese Patent No. 4812948

However, among the aforementioned conventional strollers, there are problems as described below. That is, even if the operation of the push rod locking mechanism can be prevented in the completely folded state, the problem of the above-mentioned push rod passing is prevented, but in the state in which the stroller is in the folded state from the unfolded state, the push rod The rotation is not restricted. Therefore, the problem of the push rod passing through remains unresolved. Pusher penetration is particularly prone to occur when a folding operation is in progress.

The present invention has been made in order to solve the above problems, and an object of the invention is to provide a push rod penetration preventing structure capable of preventing the passage of a push rod even in a state in which the stroller is folded.

In order to achieve the object, the folding stroller of the present invention includes: a first skeleton; and a second skeleton which is in a deployed state of the stroller, a mid-folding state, and The relative positional relationship with the first skeleton in each state of the folded state changes; and the pusher that selectively switches the back push position and the opposite push position in the unfolded state of the stroller. Further, the present invention further includes a blocking member that is movably attached to the first skeleton and that is movable on a moving path in which a predetermined portion of the push rod moves between the back push position and the opposite push position a position and a second position from the movement path; and a position adjustment means for operating in accordance with the relative positional relationship between the first and second skeletons, and covering the baby carriage in an unfolded state The breaking member is maintained at the second position, and the blocking member is maintained at the first position in the intermediate state and the folded state of the stroller; and the pusher is prevented from being switched by the blocking member provided at the first position.

According to the present invention, when the folding operation of the stroller is started, the rotation of the pusher is restricted in the middle of folding and the folded state because the blocking member moves to the first position on the moving path of the pusher. Therefore, even if the operator mistakenly releases the push rod locking mechanism, the push rod does not rotate, and the push rod can be prevented from passing through.

In addition, the so-called unfolded state means that the stroller is completely opened due to use, and the so-called folded state means that the stroller is completely reduced in static shape because it is not used, and any state is a fixed shape. . On the other hand, the so-called mid-folding state refers to a dynamic shape in which the stroller is changed from the unfolded state to the folded state or reversed, and is an unfixed and wide-ranging form.

The first position of the blocking member may be within the movement path of the push rod, and the second position of the blocking member may be outside the movement path of the push rod, and the arrangement thereof is not particularly limited. The blocking member is only required to move in a direction transverse to the movement path, and the direction thereof is not particularly limited. For example, the blocking member can be moved in the up and down direction. Alternatively, the blocking member can be moved toward the width of the stroller.

The type of the first skeleton is not particularly limited as long as it is provided in the first skeleton of the stroller. The first skeleton may be any one of the skeleton members constituting the skeleton of the vehicle body. In addition, the vehicle body skeleton refers to a skeleton of a body skeleton of a baby carriage that constitutes a front leg, a rear leg, a front-rear direction member, a bracket, and a width direction member. According to an embodiment of the present invention, the first bobbin and the push rod provided at the back push position are in a substantially parallel positional relationship. According to this embodiment, the push rod provided at the rear push position can be kept from rotating.

The type of the second skeleton is not particularly limited. The second skeleton may be any member constituting the skeleton of the vehicle body. In one embodiment, the second skeleton is an armrest that is coupled to the first skeleton through the connection shaft, and the angle between the armrest and the first skeleton is set to a first angle in an unfolded state, and the intermediate state and the folded state may be set to 1 angle different angles. In another embodiment, the second skeleton is a rear leg having a wheel at a lower end and extending in the vertical direction. The rear leg is set to a position relatively close to the first skeleton in the unfolded state, and a position in which the folding midway state and the folded state are relatively distant.

Alternatively, in another embodiment of the present invention, the second frame is a rotating bracket that is coupled to the first frame through the connecting shaft, and the angle between the rotating bracket and the first frame is set to a first angle in an unfolded state, and is in a middle of folding. And the folded state is set to an angle different from the first angle. In another embodiment, the second skeleton is a front-rear direction member that is coupled to the first bobbin through the connection shaft, and the angle between the front-rear direction member and the first bobbin is set to a first angle in an unfolded state, and is in a mid-fold state and folded. The state is set to an angle different from the first angle.

According to a preferred embodiment of the present invention, the position adjusting means includes an elastic member that springs the blocking member to the first position, and abuts the first skeleton in the expanded state. The blocking member is pushed into the second position, and the abutting member that is separated from the first skeleton in the middle of the folding state and the folded state. The abutting member may be a different member from the blocking member, or may be a part of the blocking member provided in the blocking member.

In a further preferred embodiment of the present invention, the first position is a position adjacent to a predetermined portion of the push rod provided at the back push position. According to this embodiment, the pusher provided at the back push position does not rotate from the back push position, and the stroller can be folded while maintaining the back push position. In another embodiment, the first position of the blocking member may be a position adjacent to a predetermined portion of the push rod provided at the surface pushing position.

The present invention is not limited to the embodiment. However, one of the predetermined portion of the push rod and the blocking member may be a protrusion, and the other one may be a pair of side wall portions, and the protrusion may be accommodated at the first position. Between the pair of side wall portions. According to this embodiment, the push rod can be held in the first position so as not to be rotatable.

Thus, in the present invention, the blocking member does not restrict the rotation of the pusher in the deployed state of the stroller. When the folding operation of the stroller is started, the blocking member moves to the first position on the moving path of the push rod to restrict the rotation of the push rod. Therefore, the push rod does not rotate even if the operator mistakenly releases the push rod locking mechanism, regardless of whether it is in the fully folded state or in the incomplete folding midway state, and the push rod can be prevented from passing through.

12‧‧‧ front wheel

13‧‧‧ Rear wheel

14‧‧‧ Front foot

15‧‧‧ hind feet

15p‧‧‧Apartment

18‧‧‧ front and rear directional members

18t‧‧‧ backend

20‧‧‧Handrail

22‧‧‧Handrail support skeleton

22p‧‧‧plate

22x‧‧‧Handrail support centerline

23, 25, 27, 29, 30, 35‧‧‧ linkage shaft

24‧‧‧ Backrest components

26‧‧‧Rotating bracket

28‧‧‧Reverse bracket

28t‧‧‧ upper end

33‧‧‧ pivot

34‧‧‧Put

34b‧‧‧ bottom wall

34n, 39n‧‧‧ claws

34p‧‧‧ protruding parts

34w‧‧‧ Sidewall

36‧‧‧Hands

37f, 37r‧‧‧ being engaged

38‧‧‧ engaging members

39r, 39f‧‧‧stops

41‧‧‧Interrupting members

41s‧‧‧blocking parts

41p‧‧‧Upper end

41t‧‧‧ protruding part

42‧‧‧ cover

42h‧‧‧ gap

42i‧‧‧ inside

42m‧‧‧ outside side

42n‧‧‧ long hole

43‧‧‧Flexible components

B‧‧‧Moving path

Fig. 1 is a perspective view showing a folding stroller according to an embodiment of the present invention.

Fig. 2 is a side view showing the folding stroller of Fig. 1 and showing how the pusher is provided at the rear push position.

Figure 3 is a side view showing the folding stroller of Figure 1 and showing the putter Set to the opposite position to push the position.

Fig. 4 is a side view showing a state in which the folding type stroller of Fig. 1 is folded in the middle.

Fig. 5 is a side view showing the folded state of the folding stroller of Fig. 1.

Fig. 6 is a perspective view showing the armrest, the armrest support member, and the push rod in an unfolded state.

Fig. 7 is a side view showing the armrest and the armrest support member of Fig. 6 taken out.

Fig. 8 is a cross-sectional view showing the armrest support member, the push rod, and the push rod passage preventing structure of Fig. 6.

Fig. 9 is a view showing the blocking member and the position adjusting means in an unfolded state viewed from the outer side in the width direction.

Fig. 10 is a view of the blocking member and the position adjusting means corresponding to Fig. 9 as seen from the inner side in the width direction.

Figure 11 is a front view and a side view of the interrupting member.

Fig. 12 is a view showing the blocking member and the position adjusting means for viewing the mid-fold state and the folded state from the outer side in the width direction.

Fig. 13 is a view of the blocking member and the position adjusting means corresponding to Fig. 12 as seen from the inner side in the width direction.

Fig. 14 is a perspective view showing an enlarged handrail, an armrest support member, and a pusher in a state in which the folding is in the middle.

Fig. 15 is a line diagram showing a stroller according to another embodiment of the present invention, and showing a state in which the pusher is provided at the rear push position.

Figure 16 is a line showing an enlarged display of the blocking member and the position adjusting means of Fig. 15. Figure.

Fig. 17 is a line diagram showing the stroller of Fig. 15 and showing how the pusher is placed at the opposite push position.

Fig. 18 is a line diagram showing an enlarged display of the blocking member and the position adjusting means of Fig. 17.

Fig. 19 is a diagram showing a state in the middle of folding of the folding stroller of Fig. 15.

Fig. 20 is a line diagram showing the folded state of the folding stroller of Fig. 15.

Fig. 21 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Figs. 18 and 19.

Fig. 22 is a line diagram showing a modification of the structure for preventing the pusher from passing therethrough, and showing how the pusher is provided at the opposite push position.

Fig. 23 is a line diagram showing a state in which the pusher is set at the rear push position in the configuration of Fig. 22.

Fig. 24 is a diagram showing a state in which the blocking member is provided at the first position in the structure of Fig. 22.

Fig. 25 is a line diagram showing a stroller according to another embodiment of the present invention, and showing a state in which the pusher is provided at the rear push position.

Fig. 26 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 25.

Fig. 27 is a line diagram showing the folding stroller of Fig. 25, and showing how the pusher is placed at the opposite push position.

Fig. 28 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 27.

Fig. 29 is a diagram showing a state in the middle of folding of the folding stroller of Fig. 25.

Fig. 30 is a line diagram showing an enlarged display of the blocking member and the position adjusting means of Fig. 29.

Fig. 31 is a line diagram showing the folded state of the folding stroller of Fig. 25.

Fig. 32 is a diagram showing the expansion of the blocking member and the position adjusting means of Fig. 31.

Fig. 33 is a line diagram showing a stroller according to another embodiment of the present invention, and showing a state in which the pusher is provided at the rear push position.

Fig. 34 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 33.

Fig. 35 is a line diagram showing the folding stroller of Fig. 33, and showing how the pusher is placed at the opposite push position.

Fig. 36 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 35.

Fig. 37 is a diagram showing a state in the middle of folding of the folding stroller of Fig. 33.

Fig. 38 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 37;

Fig. 39 is a line diagram showing the folded state of the folding stroller of Fig. 33.

Fig. 40 is a line diagram showing an enlarged display of the blocking member and the position adjusting means of Fig. 39;

Fig. 41 is a line diagram showing the operation of the blocking member of the present invention and the moving path of the push rod.

Fig. 42 is a diagram showing the operation of the blocking member and the moving path of the pusher according to a modification of the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Fig. 1 is a perspective view showing a folding type stroller according to an embodiment of the present invention, showing a state in which a pusher is provided at a rear push position. Fig. 2 is a side view of the stroller of Fig. 1 as seen from the left side in the width direction. Fig. 3 is a side view of the stroller of the same embodiment as that of Fig. 1 viewed from the left side in the width direction, and shows a state in which the pusher is provided at the opposite push position. Any of the first to third figures is an unfolded state that is opened for use. On the other hand, FIG. 4 is a side view showing a state in which the folding stroller is halfway viewed from the left side in the width direction. In addition, FIG. 5 is a side view showing a state in which the folding stroller is completely folded (hereinafter referred to as a folded state) when viewed from the left side in the width direction, and the folding stroller of the present embodiment is shown in FIG. 5 when not in use. The way to shrink. Therefore, the stroller according to the present embodiment can be in any of the unfolded state shown in Figs. 1 to 3 and the folded state shown in Fig. 5.

First, the overall configuration of the folding stroller will be described.

The folding stroller includes a pair of right and left forefoot legs 14 having a front wheel 12 at a lower end and extending in an up-and-down direction, and a pair of left and right rear legs 15 having a rear wheel 13 at a lower end and extending in an up-and-down direction; the front legs 14 and the rear legs 15 are erected a pair of left and right front and rear direction members 18 extending in the front-rear direction; a pair of right and left armrests 20 positioned above the front-rear direction member 18 and extending in the front-rear direction; and left and right sides supporting the rear end of the armrest 20 and extending in the vertical direction a pair of armrest support frames 22; a plurality of width direction members spanned between the pair of left and right symmetrical frames; and a plurality of brackets 26, 28 that connect one frame to the other frame in a relatively movable manner.

The upper end of the front leg 14, the upper end of the rear leg 15, and the front end of the armrest 20 are coupled to each other by a common connecting shaft 25. The rear end of the armrest 20 is rotatably coupled to the upper end of the armrest support frame 22 through the connecting shaft 23. The armrest support frame 22 is a pipe having an upper end and a lower end and extending linearly. The lower end of the armrest support frame 22 is rotatably coupled to the inversion bracket 28 via the coupling shaft 29. The inversion bracket 28 is coupled to the center portion of the rear leg 15 via the connecting shaft 30. A U-shaped backrest member 24 is placed between the pair of left and right inverting brackets 28.

Further, the rear end of the front-rear direction member 18 which is a pair of left and right frames extending in the front-rear direction is rotatably coupled to the inversion bracket 28. The front end region of the front-rear direction member 18 is a tubular portion 26t that is inserted into the rotating bracket 26, whereby the front-rear direction member 18 is slidably coupled to the rotating bracket 26. The rotating bracket 26 is rotatably coupled to the central portion of the front leg 14 via the connecting shaft 27.

The front-rear direction member 18 is a skeleton for supporting a seat portion of an infant seat (not shown). Further, the armrest 20 constitutes a pole for an infant seat. The backrest member 24 is attached to the inversion bracket 28 so as to be tiltably movable to support the backrest portion of the infant seat (not shown).

The front leg 14, the rear leg 15, the front-rear direction member 18, the armrest 20, the armrest support frame 22, the brackets 26, 28, and the width direction member constitute a body frame of the folding stroller. Each of the skeletons constituting the skeleton of the vehicle body is rotated about the connecting shafts 23, 25, 27, 29, 30, whereby the body frame can be deformed into an unfolded state (Fig. 2) opened by use, and since it is not used The reduced folding state (Fig. 5). Fig. 4 is a view showing one state in the middle of the unfolded state shown in Fig. 2 and the folded state shown in Fig. 5. When the inversion bracket 28 is in the unfolded state, it will become connected as shown in Fig. 3. The shaft 29 is formed on the upper side and the connection shaft 30 is placed on the lower side. Then, in the half-folded state shown in FIG. 4, in the folded state, the connection shaft 29 is reversed as shown in FIG. Further, the connecting shaft 30 is formed in an upper posture. Thereby, the body frame is greatly reduced in the front and rear direction. In the present embodiment, the state of the middle of folding refers to a relatively wide form from the unfolded state shown in Fig. 2 to the state before the full folded state shown in Fig. 5.

At a lower end of the armrest support frame 22, a plate member 22p extending further downward is attached and fixed. The lower end of the plate member 22p is provided with a pivot shaft 33 through which the plate member 22p is coupled to the lower end of the push rod 34. The push rod 34 is a tubular body that extends linearly, and is rotatable in the front-rear direction about the pivot shaft 33, and can selectively switch the rear back push position (Fig. 2) and the front opposite push in the unfolded state. Location (Figure 3). The upper end of the push rod 34 is coupled to the handle portion 36 via the connecting shaft 35. The handle portion 36 extends in the left-right direction and is stretched over a pair of right and left push rods 34.

Next, the push rod locking mechanism and the structure for preventing the push rod from passing through will be described.

Fig. 6 is a perspective view showing the armrest, the armrest support member, and the push rod in an unfolded state. Fig. 7 is a side view showing the armrest and the armrest support member of Fig. 6 taken out. Fig. 8 is a cross-sectional view showing a cross section of the armrest support member, the push rod, and the push rod of Fig. 6 through a plane of prevention at a right angle to the longitudinal direction. An engaged portion 37f that protrudes outward in the width direction is attached and fixed to the upper end portion of the front leg 14. Moreover, the engaged portion 37r that protrudes outward in the width direction is attached and fixed to the upper end portion of the rear leg 15. On the other hand, the push rod 34 is slidably provided with the engaging member 38. The engaging member 38 is rhombic in side view and is slidable toward the length of the push rod 34. An inner side of the engaging member 38 in the width direction is formed with an engaging groove that extends in the longitudinal direction of the push rod 34 to selectively receive the engaged portions 37r and 37f. These engaged parts The 37r, 37f and the engaging member 38 constitute a push rod locking mechanism that can hold the push rod 34 at either the opposite push position or the back push position.

When the pusher 34 is provided at the back push position shown by the solid line in Fig. 6, the engaging member 38 is engaged with the engaged portion 37r, and the pusher 34 is held at the back push position. When the operator of the folding stroller pulls up the engaging member 38 in the upward direction to release the engagement with the engaged portion 37r, the push rod 34 is pivoted about the pivot 33. Next, as shown by a broken line in Fig. 6, by the operator turning the push rod 34 to the opposite push position, the diamond-shaped engaging member 38 is automatically engaged with the engaged portion 37f. Thereby, the push rod 34 is held in the opposite push position. When switching from the opposite push position to the back push position contrary to the foregoing, the operator also has to pull the push member 34 upward to push the pusher 34 to the rear push position in the above manner.

When viewed from the outside in the width direction, the armrest support frame 22 is shielded by the push rod 34 provided at the rear push position as shown in Fig. 2 . The armrest support frame 22 extending in parallel with the push rod 34 provided at the rear push position is attached and fixed with a stopper 39r. The stopper 39r is provided on the pusher 34 to abut against the projection 34p that protrudes inward in the width direction, and is used to restrict the pusher 34 from falling backward beyond the back push position. Similarly, a stopper 39f is attached and fixed to the forefoot 34 to restrict the pusher 34 from falling over the opposite push position.

Incidentally, as shown in Fig. 8, a claw 39n that protrudes forward is formed at the front end portion of the stopper 39r. On the other hand, as shown in Fig. 8, a claw 34n that protrudes rearward is formed at the front end portion of the protruding portion 34p. While the pusher 34 is in the back push position, the claws 34n, 39n face each other across the gap opened in the width direction of the stroller. Thereby, even if an excessive lateral force acts on the push rod 34 or the like, the push rod 34 is caused. To move outward in the width direction, the claws 34n, 39n are still engaged with each other to prevent the push rod 34 from moving outward in the width direction.

A lid body 42 having a position adjusting means for adjusting the position of the blocking member 41 is provided outside the armrest support frame 22 in the width direction. The lid body 42 is formed with a long hole 42n extending in the longitudinal direction of the armrest support frame 22. The blocking member 41 is an elongated member that extends in the vertical direction and is movably housed in the lid body 42. Further, a shutter 41s is formed at a lower end portion of the blocking member 41. The stopper 41s penetrates the long hole 42n and protrudes outward in the width direction. Further, the stopper 41s is movable to the upper end side (first position) of the long hole 42n and the lower end side (second position) of the long hole 42n. Figs. 6 and 7 show the stopper 41s of the blocking member 41 provided at the second position.

As shown in Fig. 7, as the push rod 34 rotates, the projection 34p of the push rod 34 moves along the arc-shaped movement path B around the pivot shaft 33. The blocking member 41 allows or restricts the passage of the projection 34p as the blocking member generally opens and closes the moving path.

Fig. 9 is a view showing the blocking member and the position adjusting means in an unfolded state viewed from the outer side in the width direction. Fig. 10 is a view of the blocking member and the position adjusting means corresponding to Fig. 9 as seen from the inner side in the width direction. The left side of Fig. 11 is a front view of the blocking member, showing the look from the front of the folding stroller. The right side of Fig. 11 is a side view of the blocking member, showing a state seen from the outer side in the width direction of the folding stroller. Fig. 12 is a view showing the blocking member and the position adjusting means for viewing the mid-fold state and the folded state from the outer side in the width direction. Fig. 13 is a view of the blocking member and the position adjusting means corresponding to Fig. 12 as seen from the inner side in the width direction. Figs. 9 to 13 show a configuration in which the push rod 34 is prevented from passing through the skeleton of the vehicle body.

The outer side surface 42m of the lid body 42 is directed outward in the width direction. Engaged portion 37r and The movable member 39r protrudes outward in the width direction from the outer side surface 42m. The inner side surface 42i of the lid body 42 is attached and fixed to the outer peripheral surface of the armrest support frame 22 formed as a pipe body.

The blocking member 41 is housed in the lid body 42 and guided toward the extending direction of the center line 22x of the armrest supporting frame 22. As shown in Fig. 11, the blocking member 41 has an L shape and extends in the vertical direction, and the stopper 41s protrudes outward in the width direction. As shown in FIGS. 10 and 13, a V-shaped elastic member 43 for ejecting the blocking member 41 upward is provided inside the lid body 42. One end of the elastic member 43 is engaged with the inner side surface of the lid body 42, and the other end of the elastic member 43 is engaged with the protruding portion 41t protruding from the blocking member 41. The upper end portion 41p of the blocking member 41 is inserted into the notch 42h formed at the upper end of the lid body 42, and protrudes upward from the notch 42h. Further, the upper end portion 41p abuts against the lower surface of the armrest 20 as an abutting member. Therefore, the blocking member 41 is pushed downward toward the lower side against the elastic thrust of the elastic member 43, and is set to the second position in the expanded state.

On the other hand, when the body frame of the folding stroller is started to be folded, and the angle between the armrest 20 around the connecting shaft 23 and the armrest supporting frame 22 is enlarged, the armrest 20 is separated from the upper end portion 41p, and the elastic member 43 is covered. The breaking member 41 is displaced upward. Thereby, the stopper 41s is set at the first position on the movement path B (Fig. 12, Fig. 13). The stopper 41s provided at the first position is adjacent to the projection 34p of the push rod 34. Therefore, as shown in the perspective view of Fig. 14, in the mid-folding state, even if the pusher 34 is to be rotated, the pusher 34 is restricted from rotating by the protrusion 34p abutting against the stopper 41s.

When the body frame continues to be folded, and the angle between the armrest 20 around the connecting shaft 23 and the armrest supporting frame 22 is further enlarged, the body frame becomes completely folded. In the folded state, as in the mid-folding state, the blocking member 41s of the blocking member 41 It will be set to the first position on the movement path B (Fig. 12, Fig. 13). Further, similarly to the perspective view of Fig. 14, in the folded state, the stopper 41s abuts against the projection 34p of the push rod 34 to restrict the rotation of the push rod 34. The elastic member 43 and the upper end portion 41p function as position adjustment means for adjusting the position of the blocking member 41.

Incidentally, as shown in Fig. 8, the stopper 41s is located at both the second position and the first position, and is positioned in front of the projection 34p. Further, the stopper 41s provided at the first position faces the front surface of the projection 34p to restrict the rotation of the push rod 34 forward, and the stopper 39r opposes the rear surface of the projection 34p to restrict the push rod 34 to the rear. The rotation. As a result, even if the operator pulls up the engaging member 38 of the push rod locking mechanism in the upward direction to release the engagement between the engaging member 38 and the engaged portion 37r, the push rod 34 does not rotate.

According to the folding stroller of the present embodiment, the blocking member 41 operates in accordance with the relative positional relationship between the armrest 20 as the second skeleton and the armrest supporting frame 22 as the first skeleton. That is, the blocking member 41 is movably attached to the armrest supporting frame 22, and is disposed on the moving path B of the protruding portion 34p of the push rod 34 in the folded state and the halfway state of the folding stroller. The first position. Further, the blocking member 41 is provided at a second position that is separated from the movement path B in the unfolded state of the stroller. The positional adjustment of the blocking member 41 between the first position and the second position is an elastic member 43 for bucking the blocking member 41 to the first position by the cover 42 and the armrest 20 The abutting member 41 is pushed down to the second position by abutting against the upper end portion 41p of the blocking member 41.

Thereby, the blocking member 41 is maintained at the second position in the unfolded state in which the upper end portion 41p abuts against the armrest 20. Further, in the mid-fold state and the folded state in which the upper end portion 41p is separated from the armrest 20, the elastic member 43 will block the blocking member 41 of the stroller. Maintain in the first position.

Therefore, according to the present embodiment, even if the operator releases the engagement between the engaging member 38 and the engaged portion 37r in the folded state or the halfway state, the pusher 34 is restricted from being rotated by the blocking member 41, and becomes Can't switch. Therefore, it is possible to prevent the pusher 34 from rotating past the vehicle body skeleton such as the armrest support frame 22 and the forefoot 14 .

Next, another embodiment of the present invention will be described. 15 to 21 are line diagrams showing a folding type stroller according to another embodiment of the present invention, and Fig. 15 is a folding type stroller which is set to be in an unfolded state as viewed from the left side, and the display push rod is provided at the rear push position. A line drawing of the look. Fig. 16 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 15. In the other embodiments, the same components as those in the above-described embodiments will be denoted by the same reference numerals, and their description will be omitted. The different configurations will be described below. In other embodiments, the rear leg 15 is a second frame that changes the relative position of the armrest support frame. Further, at the upper end of the blocking member 41, a stopper 41s that is hatched in the drawing is formed, and the lower end of the blocking member 41 can protrude downward from the lid 42. An abutting portion 15p that protrudes rearward is fixedly attached to the rear leg 15.

In the unfolded state, the lower end of the blocking member 41 abuts against the abutting portion 15p and pushes upward, and the stopper 41s is provided at a second position that is separated upward from the moving path of the protruding portion 34p.

Fig. 17 is a line diagram showing the folding stroller of Fig. 15, showing how the pusher is placed at the opposite push position. Fig. 18 is a line diagram showing an enlarged display of the blocking member and the position adjusting means of Fig. 17. In the unfolded state, since the blocking member 41s is maintained at the second position, the protruding portion 34p does not interfere with the blocking member 41s, and the push rod 34 can be switched from the back pushing position to the opposite pushing position, or can be reversely reversed.

Fig. 19 is a diagram showing a state in the middle of folding of the folding stroller of Fig. 15. Fig. 20 is a line diagram showing the folded state of the folding stroller of Fig. 15. Fig. 21 is an enlarged view showing the blocking member and the position adjusting means of Figs. 18 and 19.

When the pusher 34 is set at the back push position, when the operator starts folding the stroller and sets the foldable stroller to the mid-fold state shown in FIG. 19, the armrest support as the first skeleton The relative positional relationship between the skeleton 22 and the rear leg 15 as the second skeleton changes. Further, the blocking member 41 is separated from the abutting portion 15p of the rear leg 15. Thereby, the blocking member 41 is returned to the lower side, and the stopper 41s is provided at the first position. When the pusher 34 is to be rotated, since the projection 34p of the pusher 34 abuts against the stopper 41s provided at the first position, the rotation of the pusher 34 is restricted.

Even if the operator continues the folding of the folding stroller, and the folding stroller becomes the final folded state shown in Fig. 20, the blocking member 41 is maintained in a state of being separated from the rear leg 15. Therefore, in the mid-fold state and the folded state, the stopper 41s is maintained at the first position, and the switching of the pusher 34 is prevented.

Next, a modification of the structure for preventing the push rod from passing through will be described. Fig. 22 is a line diagram showing a modification viewed from the left side, showing how the pusher is placed at the opposite push position. Fig. 23 is a line diagram showing a state in which the pusher is set at the rear push position in the configuration of Fig. 22. In this modification, the projection 34p to which the hatching is applied in the drawing has a pair of side wall portions 34w, 34w and a bottom wall portion 34b. The side wall portions 34w, 34w are opposed to each other and extend in the longitudinal direction of the push rod 34. The bottom wall portion 34b is connected to the pair of side wall portions 34w, 34w on the lower end side.

The modifications of the 22nd and 23rd drawings are also the same as the 16th and 18th drawings already described. In the unfolded state of the stroller, the lower end of the blocking member 41 and the rear leg are the same. 15 abuts and pushes up, and the blocking member 41s is maintained at the upper second position. Thereby, the pusher 34 can be switched between the opposite push position shown in FIG. 22 and the back push position shown in FIG.

Fig. 24 is a diagram showing a state in which the blocking member is provided at the first position in the structure of Fig. 22. As shown in Figs. 19 and 20, when the folding type stroller is started to be folded, the relative positional relationship between the armrest support frame 22 and the rear leg 15 changes, and the rear leg 15 is separated from the blocking member 41. As a result, the stopper 41s is set to the lower first position, and the stopper 41s is housed between the pair of side wall portions 34w, 34w. Thereby, the push rod 34 is kept in a non-rotatable state in the middle of folding and in the folded state.

Next, another embodiment of the present invention will be described based on the line drawings of Figs. 25 to 32. Fig. 25 is a line diagram showing a stroller according to another embodiment of the present invention, and showing a state in which the pusher is provided at the rear push position. Fig. 26 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 25. Fig. 27 is a line diagram showing the folding stroller of Fig. 25, and showing how the pusher is placed at the opposite push position. Fig. 28 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 27. Fig. 29 is a diagram showing a state in the middle of folding of the folding stroller of Fig. 25. Fig. 30 is a line diagram showing an enlarged display of the blocking member and the position adjusting means of Fig. 29. Fig. 31 is a line diagram showing the folded state of the folding stroller of Fig. 25. Fig. 32 is a diagram showing the expansion of the blocking member and the position adjusting means of Fig. 31. In the other embodiments, the same components as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof will not be repeated, and the different configurations will be described below.

In another embodiment of the present invention, the first skeleton is the armrest support skeleton 22, and the second skeleton is the reverse bracket 28. Reverse bracket 28 and armrest support skeleton 22 is rotatably coupled through the connecting shaft 29, and the angle of the reverse bracket 28 and the armrest support frame 22 is changed by the folding operation. Further, the coupling shaft 29 of the reverse bracket 28 and the armrest support frame 22 is disposed coaxially with the armrest support frame 22 and the pivot 33 of the push rod 34.

In the unfolded state shown in Figs. 25 to 28, the angle between the armrest support frame 22 and the inversion bracket 28 is set to the first angle. Further, the upper end 28t of the reverse bracket 28 located above the connecting shaft 29 abuts against the lower end of the blocking member 41, whereby the blocking member 41 is provided at the upper first position. In this unfolded state, the projections 34p fixed to the push rod 34 and the stopper 41s of the blocking member 41 are not engaged.

In the mid-folding state shown in Figs. 29 and 30, the reverse bracket 28 is rotated about the connecting shaft 29 and the upper end 28t is moved rearward. As a result, the upper end 28t is separated from the blocking member 41, and the blocking member 41 is provided at the second position on the lower side by the elastic member 43. The stopper 41s of the blocking member 41 is engaged with the protruding portion 34p of the push rod 34 provided at the back push position at the second position. Thereby, the pusher 34 becomes unswitchable.

In the folded state shown in Figs. 31 and 32, the same state as in the middle of folding. That is, the inversion bracket 28 continues to rotate, and the upper end 28t is located farther from the blocking member 41 than the rotating shaft 29.

Next, another embodiment of the present invention will be described based on the line diagrams of Figs. 33 to 40. Fig. 33 is a line diagram showing a stroller according to another embodiment of the present invention, and showing a state in which the pusher is provided at the rear push position. Fig. 34 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 33. Fig. 35 is a line diagram showing the folding stroller of Fig. 33, and showing how the pusher is placed at the opposite push position. Fig. 36 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 35. Fig. 37 is a diagram showing a state in the middle of folding of the folding stroller of Fig. 33. Fig. 38 is a line diagram showing an enlarged view of the blocking member and the position adjusting means of Fig. 37; Fig. 39 is a line diagram showing the folded state of the folding stroller of Fig. 33. Fig. 40 is a line diagram showing an enlarged display of the blocking member and the position adjusting means of Fig. 39; In the other embodiments, the same components as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof will not be repeated, and the different configurations will be described below.

In another embodiment of the present invention, the first skeleton is the armrest support skeleton 22, and the second skeleton is the front and rear direction member 18. The reverse bracket 28 and the armrest support frame 22 are rotatably coupled via the connecting shaft 29. Further, the rear end portion of the front-rear direction member 18 is rotatably coupled via the connecting shaft 29. Thereby, the angle of the front-rear direction member 18 and the armrest support bobbin 22 changes due to the folding operation. Further, the connecting shaft 29 is disposed coaxially with the armrest support frame 22 and the pivot 34 of the push rod 34.

In the unfolded state shown in Figs. 33 to 36, the angle between the armrest support frame 22 and the front-rear direction member 18 is set to the first angle. In addition, the rear end 18t of the front-rear direction member 18 which is located further rearward than the connection shaft 29 protrudes obliquely upward and abuts against the lower end of the blocking member 41, whereby the blocking member 41 is provided at the upper first position. In this unfolded state, the projections 34p fixed to the push rod 34 and the stopper 41s of the blocking member 41 are not engaged.

In the mid-folding state shown in Figs. 37 and 38, the front-rear direction member 18 is rotated about the connecting shaft 29, and the rear end 18t is moved downward. As a result, the rear end 18t is separated from the blocking member 41, and the blocking member 41 is provided at the second position on the lower side by the elastic member 43. The stopper 41s of the blocking member 41 is engaged with the protruding portion 34p of the push rod 34 provided at the back push position at the second position. Thereby, the pusher 34 becomes unswitchable.

In the folded state shown in Figs. 39 and 40, it is also the same as the halfway state. That is, the front-rear direction member 18 continues to rotate, and the rear end 18t is away from the blocking member 41.

Fig. 41 is a line diagram showing the operation of the blocking member of the present invention and the moving path of the push rod, the left side is a state schematically shown in the vehicle width direction of the stroller, and the right side is schematically shown before and after the stroller. The state of view. As described above, as shown on the left side of Fig. 41, the projection 34p, which is a predetermined portion of the pusher 34, draws a circumferential track centered on the pivot 33 at the time of switching of the pusher 34. The blocking member 41 moves in the vertical direction between the first position (solid line) in the push rod movement path B of the circumferential track and the second position (two-point chain line) outside the movement path B. Further, the blocking member 41 is engaged with the protruding portion 34p which is a predetermined portion of the push rod 34 at the first position. Further, the second position of the blocking member 41 may be above the first position indicated by the two-dot chain line in Fig. 41, or may be below the first position (not shown).

Fig. 42 is a diagram showing the operation of the blocking member and the moving path of the pusher according to a modification of the present invention, and the left side is a view schematically showing a state viewed from the vehicle width direction of the stroller, and the right side is a schematic representation from the baby. The state of the car viewed in the front and rear direction. As shown on the left side of Fig. 42, in addition to the foregoing embodiment, the push rod 34 can also draw a sector-shaped moving path B with the pivot 33 as a vertex at the time of switching of the push rod 34. As shown on the right side of Fig. 42, the blocking member 41 moves in the width direction between the first position (two-point chain line) in the push rod movement path B and the second position (solid line) outside the movement path B. . Thus, as shown on the left side of Fig. 42, the blocking member 41 can also be moved in the width direction of the stroller. Since the movement path B shown in Fig. 42 is wider than the movement path B shown in Fig. 41, the arrangement layout of the blocking member 41 is The degree of freedom can be increased.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and changes can be made to the embodiments shown in the embodiments within the scope of the invention.

(industrial availability)

The folding stroller of the present invention is beneficial for use in childcare appliances.

20‧‧‧Handrail

22‧‧‧Handrail support skeleton

22p‧‧‧plate

23, 25‧‧‧ Connecting shaft

33‧‧‧ pivot

34p‧‧‧ protruding parts

37r‧‧‧The Department of Engagement

39r‧‧‧stops

41s‧‧‧blocking parts

42‧‧‧ cover

42n‧‧‧ long hole

B‧‧‧Moving path

Claims (9)

A folding stroller includes: a first skeleton; and a second skeleton which changes in a relative positional relationship with the first skeleton in each of a state in which the stroller is deployed, a state in which it is folded, and a state in which it is folded. a push rod that selectively switches a back push position and a opposite push position in the unfolded state of the stroller; the interrupting member is movably mounted on the first skeleton and is movable a predetermined portion of the pusher is between a first position on a movement path that moves between a back push position and a opposite push position, and a second position that is apart from the movement path; and a position adjustment means for the position adjustment means The relative positional relationship is correspondingly operated, and the blocking member is maintained at the second position in the deployed state of the stroller, and the blocking member is maintained at the first position in the intermediate state and the folded state of the stroller; The pusher is not switchable due to the blocking member provided at the first position. The folding stroller according to claim 1, wherein the first bobbin and the push rod provided at a rear push position are substantially in a positional relationship. The folding stroller according to claim 2, wherein the second frame is an armrest that is coupled to the first frame through a connecting shaft, and an angle between the armrest and the first frame is set in the unfolded state. In the first angle, the folding intermediate state and the folding state are set to be different angles from the first angle. The folding stroller according to claim 2, wherein the second skeleton is a rear leg having a wheel at a lower end and extending in a vertical direction, and the rear leg is relatively close to the first one in the developed state. The position of the skeleton is set to a position where the halfway state and the folded state are relatively distant. The folding stroller according to claim 2, wherein the second frame is a rotating bracket that is coupled to the first frame through a connecting shaft, and an angle of the rotating bracket and the first frame is in an unfolded state. The first angle is set to an angle different from the first angle in the middle of the folding and the folded state. The folding stroller according to claim 2, wherein the second frame is a front-rear direction member that is coupled to the first frame through the connection shaft, and an angle of the front-rear direction member and the first frame is in the expansion. The state is set to the first angle, and the halfway state and the folded state are set to be different angles from the first angle. The folding type stroller according to claim 1, wherein the position adjusting means includes an elastic member that springs the blocking member to the first position, and abuts the first skeleton in the developed state. And the abutting member that pushes the blocking member into the second position and is separated from the first skeleton in the middle of the folding state and the folded state. The folding stroller according to claim 1, wherein the first position is a position adjacent to a predetermined portion of the push rod provided at the back push position. The folding stroller according to claim 1, wherein one of the predetermined portion and the blocking member is a protrusion, and the remaining one is a pair The side wall portion houses the protrusion between the pair of side wall portions at the first position.