JP3165732U - stroller - Google Patents

Abstract

An object of the present invention is to provide a stroller that can be easily folded. A stroller includes a stroller frame, a stroller lock mechanism disposed on the stroller frame, and a seat disposed on the stroller frame. The stroller frame comprises a push rod, a first open position where the push rod 9 is located in front of the seat, and a final position when folded and deformed from the first open position under the control of the stroller lock mechanism. A first folded position, a second open position where the push rod is located behind the seat, and a second position which is the final position when folded and deformed from the second open position under the control of the stroller lock mechanism. Folding position. The stroller frame further includes a push rod lock mechanism for fixing the push rod. The stroller frame can be folded from either the first folded position or the second folded position and can be conveniently used. [Selection diagram] Fig. 1

Description

  The present invention relates to a stroller.

  In the prior art, a stroller generally comprises a stroller frame, a seat disposed on the stroller frame, a wheel assembly provided at the bottom of the stroller frame, and a locking mechanism that secures the stroller frame when it is open. Yes. The stroller frame includes a push rod that can be adjusted to be positioned in front of or behind the seat as needed when the stroller is open. However, it is very inconvenient to use because the push rod must be moved behind the seat before folding the stroller frame to remove the obstacles caused by the push rod.

  An object of the present invention is to provide a stroller that can be folded easily.

  In order to achieve one or more of these purposes, the present invention is arranged in a stroller frame, a stroller lock mechanism disposed in the stroller frame, a seat disposed in the stroller frame, and a front bottom portion of the stroller frame. A stroller is provided that includes a front wheel assembly and a rear wheel assembly disposed at the rear bottom of the stroller frame. The stroller frame includes a push rod having a first open position in which the push rod is located in front of the seat and a second open position in which the push rod is located behind the seat; The first folding position, which is the final position when deformed by being folded from the open position, and the second folding position, which is the final position when deformed by being folded from the second open position. The stroller frame further includes a push rod lock mechanism that fixes the push rod.

  In one embodiment, the stroller frame further includes a front wheel bracket, a rear wheel bracket, a side armrest, and a rear connection rod having an upper portion rotatably connected to a rear portion of the side armrest, the upper portion of the front wheel bracket, the rear wheel. One of the upper part of the bracket and the front part of the side armrest is rotatably connected to each of the other two. A slide sleeve is slidably provided along the longitudinal direction of the rear wheel bracket, and a lower end of the rear connection rod and a lower end of the push rod are respectively connected to the slide sleeve so as to be rotatable. When the stroller frame is folded, the slide sleeve slides along the longitudinal direction of the rear wheel bracket, the rear connecting rod rotates with respect to the rear wheel bracket, and moves synchronously with the sliding movement of the slide sleeve, The side armrests also rotate and eventually the stroller frame can fold. Therefore, in this example, whether the push rod is in front of or behind the seat, the push rod moves with respect to the rear wheel bracket along with the movement of the slide sleeve when the stroller frame is folded.

  The push rod lock mechanism includes a slidable lock member slidably provided along the longitudinal direction of the push rod, and a first positioning member fixed to the rear part of the side armrest or the upper part of the rear connecting rod. And a second positioning member fixed to the upper portion of the slide sleeve. The push rod can be fixed by engaging the slidable lock member with the first positioning member, and the push rod can also be fixed by engaging the slidable lock member with the second positioning member. When the push rod locking mechanism is in the unlocked position, the slidable locking member is disengaged from the first positioning member or the second positioning member. When the slidable lock member and the first positioning member are engaged and the push rod is fixed to the stroller frame in the second open position, the lower end of the push rod is the slide sleeve once the stroller frame is folded. At the same time, it moves along the rear wheel bracket, and the push rod rotates synchronously with respect to the rear wheel bracket. Since the slidable locking member is slidable with respect to the push rod, the push rod does not interfere with the folding of the stroller frame in this process. When the slidable lock member and the second positioning member are engaged and the push rod is fixed to the stroller frame in the first open position, two connection joints of the push rod are provided on the slide sleeve. Thus, the push rod does not interfere with folding the side armrest or other components relative to the rear wheel bracket once the stroller frame is folded. From the above, even if the stroller frame is in the first open position or the second open position, the push rod locking mechanism is not unlocked or adjusted before folding the push rod position One skilled in the art will recognize that the push rod will not interfere with the folding of the stroller frame without it.

  Further, the slidable lock member has a slidable lock groove, and when the push rod lock mechanism fixes the push rod to the stroller frame, the first positioning member or the second positioning member is slidable locked. When the push rod locking mechanism is not locked to the push rod while being inserted into the groove, the first positioning member or the second positioning member is out of the slidable lock groove.

  In a preferred embodiment, the stroller frame further comprises a seat rod rotatably connected to the slide sleeve, the front part of which is rotatably connected to the front wheel bracket. The seat rod is mainly used to support the seat, but the structure of the stroller frame is also stably maintained. When the stroller frame is folded, the front end of the seat rod rotates with respect to the front wheel bracket, the portion of the seat rod connected to the slide sleeve moves together with the slide sleeve, and rotates synchronously with respect to the rear wheel bracket.

  A stroller lock mechanism is preferably provided between the slide sleeve and the rear wheel bracket. As long as the slide sleeve and the rear wheel bracket are fixed, the entire stroller frame is securely locked, and an easy operation method is provided.

  It is preferable that the lower end of the push rod is rotatably connected to the slide sleeve via the first rotation shaft. The stroller lock mechanism can be configured by a lock pin provided on the first rotation shaft so as to be slidable along the axial direction, and a lock hole provided in the rear wheel bracket. The stroller lock mechanism has a lock position in which the lock pin is inserted into the lock hole and a lock release position in which the lock pin is removed from the lock hole. Such a stroller lock mechanism has a simple structure and is easy to operate. In addition, even if the lock pin is coaxial with the first rotation axis or not, the lock pin is arranged on the slide sleeve and into the lock hole along the direction inclined from the axis of the first rotation axis, or It can be moved from the lock hole.

  Furthermore, a first elastic member for stably maintaining the stroller lock mechanism at the lock position is disposed between the first rotation shaft and the lock pin.

  Further, a passage is provided on the first rotating shaft along the longitudinal direction, and the lock pin is located in the passage.

  In addition, the push rod has a tubular chamber in communication with the passage, whereby a drag cable is disposed in the tubular chamber, one end of the drag cable is linked to the release means and the other end is connected to the push rod. Since the link is connected to the lock pin, the unlocking operation can be easily performed.

  The scope of the present invention is not limited to a technical scheme consisting of a particular combination of the above technical features, but is further modified from the basic combinations of the same features or equivalents thereof, such as (but not limited to) ) Substitution of the original should also include changes altered by technical features having functions similar to those disclosed.

  The present invention has the advantage that the stroller frame can be folded from the first folding position or from the second folding position, and can be used conveniently.

FIG. 1 is a perspective view of a stroller according to a preferred embodiment of the present invention in which the stroller frame is in the second open position. FIG. 2 is a perspective view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the second folding position. FIG. 3 is a perspective view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the first open position. FIG. 4 is a perspective view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the first folding position. FIG. 5 is a cross-sectional view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the second open position. FIG. 6 is a cross-sectional view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the middle of changing from the second open position to the second folding position. FIG. 7 is a cross-sectional view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the second folding position. FIG. 8 is a cross-sectional view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the first open position. FIG. 9 is a cross-sectional view of the stroller of a preferred embodiment according to the present invention in which the stroller frame is in the middle of changing from the first opening position to the first folding position. FIG. 10 is a cross-sectional view of the stroller according to a preferred embodiment of the present invention in which the stroller frame is in the first folding position. FIG. 11 is a partial cross-sectional view of the entire stroller frame viewed along line AA in FIG. FIG. 12 is a partial cross-sectional view when the entire stroller frame is viewed along line BB in FIG. 8. FIG. 13 is an enlarged view of C in FIG. 12 when the stroller locking mechanism is in the locked position. FIG. 14 is an enlarged view of C in FIG. 12 when the stroller locking mechanism is in the unlocked position. FIG. 15 is an enlarged view of D in FIG. 11 when the stroller locking mechanism is in the unlocked position. FIG. 16 is an enlarged view of E in FIG. 11 when the push rod lock mechanism is in the unlock position. FIG. 17 is an enlarged view of F in FIG. 12 when the stroller locking mechanism is in the locked position.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of embodiments for carrying out the present invention, reference will be made to the drawings.

  As shown in FIGS. 1 to 4, the stroller includes a stroller frame 1, a stroller lock mechanism disposed on the stroller frame 1, and a seat (not shown, supported by a seat rod 8 described later). And a front wheel assembly 2 disposed on the front bottom portion of the stroller frame 1 and a rear wheel assembly 3 disposed on the rear bottom portion of the stroller frame 1.

  The stroller frame 1 includes a push rod 9, which in one example is located behind the seat when the stroller frame 1 is in the second open position as shown in FIG. 1, and as shown in FIG. 3 in one example. When the stroller frame 1 is in the first open position, it is located in front of the seat. Without adjusting the position of the push rod 9, the stroller frame 1 can be folded from the first opening position or the second opening position. FIG. 2 shows a second folding position of the stroller frame 1, which is a final position when the baby carriage frame 1 is folded and deformed from the second opening position shown in FIG. FIG. 4 shows the first folding position of the stroller frame 1, which is the final position when the baby carriage frame 1 is folded and deformed from the first opening position shown in FIG.

  The stroller lock mechanism is used to fix the stroller frame 1 in the first opening position or the second opening position, and the lock must be released before the stroller frame 1 is folded.

In the stroller according to the embodiment of the present invention illustrated in FIGS. 1 to 10, the stroller frame 1 includes a front wheel bracket 4,
Rear wheel bracket 5;
Side armrest 6,
A rear connecting rod 7 whose upper part is rotatably connected to the rear part of the side armrest 6;
A seat rod 8 whose front is rotatably connected to the front wheel bracket 4;
A slide sleeve 10 provided on the rear wheel bracket 5 and slidable along the longitudinal direction of the rear wheel bracket 5;
A front wheel assembly 2 is provided at the lower part of the front wheel bracket 4, and a rear wheel assembly 3 is provided at the lower part of the rear wheel bracket 5. The upper part of the front wheel bracket 4, the upper part of the rear wheel bracket 5, and the side armrest 6 One of the front portions of the rear connecting rod 7 is rotatably connected to the other two, and the lower end of the rear connecting rod 7 and the lower end of the push rod 9 are rotatably connected to the slide sleeve 10, respectively. 8 is also rotatably connected to the slide sleeve 10.

  The stroller lock mechanism is provided between the slide sleeve 10 and the rear wheel bracket 5.

  As shown in FIGS. 11 to 15, the lower end of the push rod 9 is rotatably connected to the slide sleeve 10 via a first rotation shaft 19. The stroller lock mechanism includes a lock pin 11 and a lock hole 12 provided in the rear wheel bracket 5. As shown in each figure, the lock pin 11 can be provided on the first rotating shaft 19 and can be slid along the axial direction of the rotating shaft 19. The lock pin 11 can also be moved along an axis parallel to the rotation axis 19 or along an axis away from the rotation axis 19. The stroller lock mechanism has a lock position in which the lock pin 11 is inserted into the lock hole 12 and a lock release position in which the lock pin 11 is removed from the lock hole 12. A first elastic member 13 for stably maintaining the stroller locking mechanism in the locked position is disposed between the first rotating shaft 19 and the lock pin 11. A passage 14 is provided on the first rotating shaft 19 along its longitudinal direction, and the lock pin 11 is located therein. The push rod 9 has a tubular chamber communicating with the passage 14. Usually, the release operation means is movably connected to the push rod 9. A drag cable is disposed between the release operation means and the lock pin 11. When the release operation means is pulled, the lock pin 11 moves under the control of the drag cable, thereby changing the stroller lock mechanism from the lock position to the lock release position.

  A push rod locking mechanism for fixing the push rod 9 to the stroller frame 1 is disposed on the stroller frame 1. When the stroller frame 1 is open, whether the push rod 9 is in front of or behind the seat, the push rod 9 is fixed by using the push rod locking mechanism, thereby providing a method that is easier to push. The However, before switching the position of the push rod 9, it is necessary to unlock the push rod lock mechanism.

  As shown in FIGS. 16 and 17, the push rod locking mechanism is provided on the push rod 9, and is slidable along the longitudinal direction of the push rod 9. The first positioning member 16 is fixed, and the second positioning member 17 is fixed to the upper portion of the slide sleeve 10. The push rod lock mechanism has a push rod lock position and a push rod rotatable position. When the push rod lock mechanism is in the push rod lock position, the slidable lock member 15 is connected to the first positioning member 16 or the first positioning member 16. The slidable lock member 15 is disengaged from the first positioning member 16 or the second positioning member 17 when the push rod locking mechanism is in the push rod rotatable position. That is, when the stroller frame 1 is in the first open position, the slidable lock member 15 engages with the second positioning member 17, thereby placing the push rod lock mechanism in the push rod lock position. Similarly, when the stroller frame 1 is in the second open position, the slidable lock member 15 engages the first positioning member 16, thereby placing the push rod lock mechanism in the push rod lock position. When the push rod lock mechanism is in the push rod rotatable position, the stroller frame 1 can go back and forth between the first open position and the second open position. The slidable lock member 15 includes a slidable lock groove 18, and when the push rod lock mechanism is in the push rod lock position, the first positioning member 16 or the second positioning member 17 can slide. When the push rod lock mechanism is in the push rod rotatable position, the first positioning member 16 or the second positioning member 17 is disengaged from the slidable lock groove 18.

  The above description is intended to be illustrative only and is not limited to the above examples shown in the drawings. Those skilled in the art will recognize that changes may be made to the described embodiments without departing from the scope of the disclosed invention. In light of the present disclosure, further modifications and technical equivalents derived therefrom that are within the scope of the present invention will be apparent to those skilled in the art, and such modifications are within the scope of the appended claims. It is what enters.

Claims (10)

A stroller frame (1) having a push rod (9);
A stroller locking mechanism disposed on the stroller frame (1);
A seat arranged in the stroller frame (1);
A front wheel assembly (2) disposed on the front bottom of the stroller frame (1);
A stroller comprising a rear wheel assembly (3) disposed on a rear bottom of the stroller frame (1),
The stroller frame (1) has a first open position where the push rod (9) is located in front of the seat, and a second open position where the push rod (9) is located behind the seat; A first folding position that is a final position when deformed by being folded from the first opening position, and a second folding position that is a final position when being deformed by being folded from the second opening position Have
The stroller frame (1) further includes a push rod locking mechanism for fixing the push rod (9). The stroller frame (1) further includes a front wheel bracket (4),
Rear wheel bracket (5),
Side armrest (6),
A rear connecting rod (7) whose upper part is rotatably connected to the rear part of the armrest (6);
A slide sleeve (10) provided on the rear wheel bracket (5) and slidable along a longitudinal direction of the rear wheel bracket;
One of the upper part of the front wheel bracket (4), the upper part of the rear wheel bracket (5), and the front part of the side armrest (6) is rotatably connected to the other two,
The lower end of the rear connection rod (7) and the lower end of the push rod (9) are rotatably connected to the slide sleeve (10), respectively.
The stroller according to claim 1, wherein a lower end of the rear connection rod (7) and a lower end of the push rod (9) are rotatably connected to the slide sleeve (10), respectively. The push rod lock mechanism is provided on the push rod (9) and is slidable along the longitudinal direction of the push rod (9).
A first positioning member (16) fixed to the rear part of the side armrest (6) or the upper part of the rear connection rod (7);
A second positioning member (17) fixed to the upper part of the slide sleeve (10),
The push rod (9) is fixed by engaging the slidable locking member (15) with the first positioning member (16) or the second positioning member (17),
The slidable locking member (15) is disengaged from the first positioning member (16) or the second positioning member (17) when the push rod locking mechanism is in the unlocked position. Stroller as described in.   The slidable lock member (15) includes a slidable lock groove (18). When the push rod lock mechanism fixes the push rod (9), the first positioning member (16) Alternatively, when the second positioning member (17) is inserted into the slidable lock groove (18) and the push rod locking mechanism does not fix the push rod (9), the first positioning member ( 16) The stroller according to claim 3, wherein the second positioning member (17) is disengaged from the slidable lock groove (18).   The stroller frame (1) further includes a seat rod rotatably connected to the slide sleeve (10), and a front portion of the seat rod is rotatably connected to the front wheel bracket (4). The stroller according to any one of -4.   The stroller according to any one of claims 2 to 4, wherein the push rod lock mechanism is provided between the slide sleeve (10) and the rear wheel bracket (5).   The stroller lock mechanism is provided on the first rotating shaft (19) and is slidable along the axial direction of the first rotating shaft (19), through which the push rod (9) A lock pin (11) rotatably connected to the slide sleeve (10) and a lock hole (12) provided in the rear wheel bracket (5). The lock pin (11) has a lock position where the lock hole (12) is inserted, and a lock release position where the lock pin (11) is disengaged from the lock hole (12). A stroller according to any of the above.   A first elastic member (13) for stably maintaining the stroller lock mechanism at the lock position is disposed between the first rotation shaft (19) and the lock pin (11). Item 8. The stroller according to item 7.   The stroller according to claim 7, wherein a passage (14) is provided on the first rotation shaft (19) along its longitudinal direction, and the lock pin (11) is located in the passage (14).   The stroller according to claim 9, wherein the push rod (9) has a tubular chamber in communication with the passage (14).

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