TWI508882B - Convertible seat and type of two-seat baby carriage - Google Patents

Description

Convertible seat and type two-seater stroller

The invention relates to a two-seat stroller, in particular to a two-seat type in which the user can arbitrarily select a two-seat type or a left/right side-by-side type that is converted into a front/rear arrangement.

The two-seater stroller can be basically divided into two types: the front and rear two-seat type (Tandem) and the left/right side-by-side two-seat type (Side-by-side). The two-seat two-seat stroller with the front/rear arrangement is easier to pass through the narrow path, but the problem is that the infant passenger sitting in the back seat is always covered by the seat back of the front seat, and whether getting on or off the bus Very inconvenient. On the other hand, the left/right side-by-side two-seat stroller can also enjoy the unobstructed view of the baby passengers in the left/right seat, and it is also convenient to get on and off, but because The car body is too wide, it is easy to affect the passage of the passers-by, and encounter narrow routes or elevators, sometimes difficult to enter or pass.

The two types of two-seat strollers currently available on the market have their own advantages and disadvantages, but they are not allowed to change the type of the room according to the needs of the place or the width of the road. Therefore, no matter which two-seat stroller is purchased or used, You may encounter the above problems.

In view of this, the present invention provides a convertible seat type and a two-seat stroller that can be randomly selected and converted by the user into a two-seat type of front/rear arrangement or a two-seat left/right arrangement. The model may include at least: a frame, a center seat, a pair of cantilevers, and a pair of seats.

The frame is provided with a front wheel arm connecting the front wheel, a rear wheel arm connecting the rear wheel, and a cart handle located at the rear of the frame. The central rotary seat is connected between the front wheel arm and the rear wheel arm, and the two cantilever arms are pivotally connected to the frame by the central rotating seat, and can be pivoted and locked in the longitudinal position or the lateral position.

The two seats are pivoted at one end of the two cantilever arms away from the central rotary seat, and the two seats can be adjusted to a forward position regardless of whether the cantilever is locked in the longitudinal position or the lateral position, so that the two-seat stroller can be normally operated. The ground is converted into a two-seat type of front/rear arrangement or a two-seat type of left/right juxtaposition.

Preferably, the present invention can also use two pairs of links to interlock the two seats. When the central rotary seat and the two cantilevers rotate, the two seats are synchronously reversely rotated, so that the cantilever is locked in the longitudinal position or the lateral position. The seats are automatically turned to the forward position.

In order to reduce the distance between the two seats when the left/right side is juxtaposed, a horizontal groove can be added in the central rotary seat for the end of the connecting rod to slide along, so that the two-seat baby carriage is converted to the left/right In the parallel two-seat type, the width of the vehicle body can be reduced; in addition, a rotating member having a guide groove can be further added in the central rotary seat, and the rotating member can be rotated with the cantilever, and the two slots can be driven by the guide groove. The ends of the rods slide relative to each other along the transverse grooves, so that when the two-seat stroller is converted into a two-seat type of left/right juxtaposition, the distance between the seats can be automatically reduced.

As shown in FIG. 1 , a specific embodiment of a convertible seat and type two-seat stroller according to the present invention includes at least one frame 1, a center seat 2, a pair of cantilevers 3 and a For the seat 4. The user can arbitrarily select and convert the two-seat stroller of the present invention into a two-seat type 18 of front/rear arrangement or a two-seat type of left/right juxtaposition according to the width of the place.

The frame 1 can include a front wheel arm 11 connected to a pair of front wheels 110, a rear wheel arm 12 connecting a pair of rear wheels 120, and a cart handle 13 connected to the rear of the frame 1 for propelling the convertible seat of the present invention. Type of two-seater stroller.

The central rotary seat 2 is connected between the front wheel arm 11 and the rear wheel arm 12, and the two suspension arms 3 are pivotally connected to the frame 1 by the central rotation seat 2, and are pivotable to a longitudinal position 31 and a lateral position 32, and at least It can be locked in the lateral position 32. Thereby, when the user encounters a narrow place, the lock can be temporarily released, the cantilever 3 is turned to the longitudinal position 31, and after passing through the narrow position, the cantilever 3 is again locked back to the lateral position 32.

The seat 4 of the present embodiment includes a connecting portion 44 and a shaft 45. The support shaft 45 is connected below the connecting portion 44 for pivoting the seat 4 to one end of the two cantilever arms 3 away from the central rotating base 2, regardless of two The cantilever 3 is locked in the longitudinal position 31 or the lateral position 32, both of which can rotate the seat 4 to a forward position 41, so that the two-seat stroller can be normally converted into a front/rear aligned two-seat type 18 or left / Right side of the two-seat type 19.

As shown in FIG. 1 and FIG. 5 to FIG. 6, between the seat 4 and the cantilever 3 of the present embodiment, a spring-biased latching member 42 may be provided to lock the seat 4 so as not to be opposite. The cantilever 3 is free to rotate. When the user needs to adjust the direction of the seat 4, the spring-biased latching member 42 can be firstly released to release the locked state, so that the seat 4 can be rotated to adjust the direction. When the seat 4 has been turned to the forwardly facing position 41, after the spring-biased latching element 42 is released, the spring can be automatically restored by the force of the spring.

A modified embodiment of the convertible seated and type two-seat stroller according to the present invention as shown in FIGS. 2 and 3, which differs from the previous embodiment in that: among the two seats 4, Only one of the seats 4 and the cantilever 3 is provided with the spring-biased latching member 42 of the previous embodiment. As shown in Fig. 4, another difference of the modified embodiment is that the two seats 4 are interlocked by a pair of links 22, and when one of the seats 4 is rotated, the other seat 4 is followed by Synchronous rotation; when one of the seats 4 is locked, the other seat 4 cannot be freely rotated.

As shown in FIG. 3, in order to realize the interlocking effect between the two seats 41, in this embodiment, a turntable 43 is sleeved and fixed on the support shaft 45 of each seat 4, and a transmission is arranged inside the central rotary seat 2. The disk 21 is coupled between the drive plate 21 and the two turntables 43 through the inside of the cantilever 3 by a pair of links 22.

When the two seats 4 resume free rotation, the interlocking effect via the drive plate 21, the link 22 and the turntable 43 will produce the effect of synchronous steering. Thereby, regardless of whether the cantilever 3 is locked in the longitudinal position 31 or the lateral position 32, the user can synchronously adjust the two seats 4 to the forward position 41 and then lock, so that the two-seat baby carriage is converted into the fourth seat. The left/right juxtaposition of the two-seat type 19 shown in the figure, or the two-seat type 18 of the front/rear arrangement as shown in FIG.

In order to lock the two cantilevers 3 to the longitudinal position 31 and the lateral position 32, the central base 2 of the present embodiment may include a shaft center 23, a fixing portion 24, a rotating portion 25 and a spring biased latch member. 26. The fixing portion 24 is for connecting the front wheel arm 11, the rear wheel arm 12 and the fixed shaft center 23. The rotating portion 25 is pivotally connected to the fixing portion 24 by the shaft center 23, and is fixed to the two cantilevers 3 by welding, locking or integral molding.

The spring biased latch member 26 is controllably disposed between the fixed portion 24 and the rotating portion 25 for locking the cantilever 3 to the longitudinal position 31 or the lateral position 32; preferably, the wire can be flexed A sexual element (not shown) pulls the spring-biased latch 26 from the distal end to unlock it, and when the flexible element is released, it can be automatically locked by the force of the spring.

Another modified embodiment as shown in FIGS. 8 to 17 also uses a pair of links 22 to maintain the interlocking of the two seats 4, and can be reversely rotated as the two cantilevers 3 rotate; thereby, regardless of The cantilever 3 is finally locked in the longitudinal position 31 or the lateral position 32, and both seats 4 are automatically turned to their forward facing position 41, allowing the two-seat stroller of the present invention to be automatically converted.

In order to realize the function of automatically turning the seat 4 to its forward position 41, in this embodiment, a turntable 43 is sleeved and fixed by the support shaft 45 of the seat 4, and is sleeved and fixed by the axial center 23 of the center rotary seat 2. A disk 27 is fixed and the fixed disk 27 is prevented from rotating relative to the frame 1. The fixing plate 27 of the present embodiment can be provided with a hole pivotally connected to the end of the two links 22, and is connected to the turntable 43 of the two seats 4 through the cantilever 3 via the connecting rod 22.

Referring to the operation diagrams of Figs. 10 to 17, when the boom 3 is turned from its longitudinal position 31 to the lateral position 32, since the fixed disk 27 cannot be rotated, the turntable 43 at the other end of the cantilever 3 has moved with the end of the cantilever 3. At this time, the link 22 will pull the turntable 43 to rotate it in the reverse direction; when the turntable 43 is rotated in the reverse direction, the support shaft 45 will drive the seat 4 to reversely rotate, and finally reach its forward position 41. By this linkage, the two-seater stroller of the present invention can be automatically converted from the front/rear aligned two-seat type 18 to the two-seat front-facing left/right juxtaposed two-seat type 19, or juxtaposed from left/right. The two-seat type 19 is automatically converted to a two-seat type 18 in which the two seats 4 are arranged forward/backward.

Since the rotation of the cantilever 3 of the present embodiment is synchronized with the reverse rotation of the two seats 4, the seat 4 can be prevented from rotating by simply locking the cantilever 3, so that it is not necessary to provide the foregoing between the seat 4 and the cantilever 3. The spring-biased latching element 42 of the embodiment saves production costs.

The embodiment shown in Figures 18 to 20 is for locking the position of the cantilever 3, A fixing portion 24, a rotating portion 25 and a spring-biased latching member 26 are disposed on the central rotating base 2, wherein the fixing portion 24 is used for connecting the front wheel arm 11 and the rear wheel arm 12, and a shaft center 23 is fixed. . The rotating portion 25 is fixed to the two cantilevers 3, and is pivotally connected to the fixing portion 24 by the shaft center 23. A spring biased latch 26 is controllably disposed between the fixed portion 24 and the rotating portion 25 for locking the two cantilevers 3 in the longitudinal position 31 and the lateral position 32.

Since the two-seat stroller is placed in the front/rear two-seat type 18, the two seats 4 must be separated by a certain distance to ensure a comfortable living space for the infant passengers sitting in the back seat; but when the two-seat baby When the car is switched to the left/right side-by-side two-seat type 19, if the distance between the two seats 4 is still maintained, the problem of the vehicle body being too wide will be caused.

In order to automatically reduce the distance between the seats 4 when switching to the left/right juxtaposition type 19, a pair of lateral grooves 270 may be added in the center seat 2 for the ends of the links 22 to slide along the ends. The two seats 4 are driven by the connecting rod 22 to reduce the distance. In addition, a rotating member 28 having a guiding groove 280 may be further disposed in the central rotating base 2. When the rotating member 28 rotates with the cantilever 3, the end of the connecting rod 22 is driven by the guiding groove 280 so as to The horizontal groove 270 slides, and when converted into the left/right parallel two-seat type 19, the distance between the two seats 4 is automatically reduced, so that it is converted into a left/right juxtaposition but the width is automatically narrowed. .

As shown in FIG. 21 to FIG. 22, the fixing portion 24 of the center base 2 is provided with a shaft center 23 and a fixing plate 27, and the fixing plate 27 is fixed to the shaft center 23. It is not possible to rotate relative to the frame 1. The difference in this embodiment is that the fixing plate 27 is provided with a pair of lateral grooves 270 for the pivotal and sliding penetration of the ends of the two links 22, and a rotating member is provided at the rotating portion 25 of the central rotating base 2. The end 28 for driving the link 22 slides along the transverse groove 270.

To drive the end of the connecting rod 22 to slide along the transverse groove 270, a rotating groove 28 is provided in the rotating member 28 for the end of the connecting rod 22 to pass therethrough and slide along the transverse groove 270; when the rotating member 28 follows When the cantilever 3 is turned from the longitudinal position 31 to the lateral position 32, the distance between the two seats 4 can be reduced by the guide groove 280 driving the ends of the two links 22 along the lateral grooves 270, thereby making the present invention The two-seat stroller is automatically converted into a two-seat left/right juxtaposition but automatically narrowed in width as shown in Figure 23. Type 20.

1‧‧‧ frame

2‧‧‧Central Rotating Seat

3‧‧‧cantilever

4‧‧‧ seats

11‧‧‧Front wheel arm

12‧‧‧ Rear wheel arm

13‧‧‧ cart handle

18‧‧‧Two-seat type arranged before/after

19‧‧‧Two-seat type juxtaposed to the left/right

21‧‧‧Drive disk

20‧‧‧Two-seat type with left/right juxtaposition but automatically narrowed in width

22‧‧‧ Connecting rod

23‧‧‧Axis

24‧‧‧Fixed Department

25‧‧‧Rotation

26‧‧‧ Spring-biased latches

27‧‧‧ Fixed disk

28‧‧‧Rotating parts

31‧‧‧ longitudinal position

32‧‧‧ lateral position

41‧‧‧ forward position

42‧‧‧Spring-biased cassette components

43‧‧‧ Turntable

44‧‧‧Connecting Department

45‧‧‧ fulcrum

110‧‧‧front wheel

120‧‧‧ Rear wheel

270‧‧‧ transverse slot

280‧‧

1 is a left rear perspective view of a two-seat stroller embodiment of the convertible seat and type of the present invention, the seat being independently rotatable to adjust the seat orientation and to be locked in a forward position.

Figure 2 is a left rear perspective view of a two-seat bicycle variant of the convertible seat and type of the present invention, characterized in that the two seat systems are rotated in conjunction with each other, as long as one of them is locked, Secure the two seats to the forward position.

FIG. 3 is a perspective exploded view of a modified embodiment of FIG. 2 for illustrating the interlocking relationship between the two seats and the associated interlocking elements.

Fig. 4 is a perspective view showing the left front of the modified embodiment of Fig. 2 in the case of switching to the left/right juxtaposed double seat type.

FIG. 5 is a partial cross-sectional view showing a modified embodiment of the second embodiment for illustrating a locked state of the spring-biased latching member between the seat and the boom.

Figure 6 is a partial cross-sectional view showing a modified embodiment of the second embodiment for illustrating the state of the spring-biased latching member when unlocked.

Figure 7 is a left front perspective view of another variant embodiment of the convertible seat and type two-seat stroller of the present invention, characterized in that the two seat systems are coupled with the cantilever, so that the cantilever can be rotated The two seats are rotated and the two seats can be simultaneously fixed in the forward position by the fixing of the cantilever.

Figure 8 is a perspective exploded view of a modified embodiment of Figure 7 for illustrating the interlocking relationship between the cantilever and the two seats and associated interlocking elements.

Fig. 9 is a side elevational view showing a modified embodiment of Fig. 7 in a two-seat configuration in which the front/rear arrangement is arranged.

Fig. 10 is a perspective view of the modified embodiment of Fig. 7 in a two-seat configuration in which the cantilever is positioned in a longitudinal position, and the direction of the connecting portion of the seat is substantially perpendicular to the cantilever.

Figure 11 is a cantilever that hides Figure 10, revealing the support shaft, connecting rod and central rotating seat of the seat. Stereoscopic view.

Fig. 12 is a schematic view showing the connecting portion of the seat when the cantilever of the modified embodiment shown in Fig. 10 is separated from its longitudinal position and rotated by an angle.

Fig. 13 is a perspective view showing the interlocking relationship between the support shaft, the connecting rod and the central rotating seat of the seat, which hides the cantilever after the rotation of Fig. 12.

Fig. 14 is a schematic view showing the connection portion of the seat continuing to rotate in the reverse direction when the cantilever of the modified embodiment shown in Fig. 12 continues to rotate by an angle.

Figure 15 is a perspective view showing the cantilever of the 14th figure, showing the interlocking relationship between the support shaft, the connecting rod and the central rotating seat of the seat.

Fig. 16 is a schematic view showing the connecting portion of the seat substantially parallel to the cantilever when the cantilever of the modified embodiment shown in Fig. 14 is turned to the lateral position.

Figure 17 is a perspective view showing the interlocking relationship between the support shaft, the connecting rod and the central rotating seat of the seat.

Figure 18 is a perspective cross-sectional view showing the cantilever and the central swivel locked.

Fig. 19 is a schematic perspective cross-sectional view showing the cantilever and the central rotary seat being unlocked.

Figure 20 is a schematic cross-sectional view of the cantilever and the central swivel unlocked after rotation.

Fig. 21 is a schematic view showing a modified embodiment of the central rotary seat of the present invention, in which a lateral groove and a guide groove are provided inside the central rotary seat.

Fig. 22 is a schematic view showing the operation of the modified embodiment of Fig. 21, which is characterized in that the two seats of the two-seater stroller are automatically reduced in distance when switching to the left/right juxtaposed two-seat type.

Fig. 23 is a perspective view showing a two-seat configuration in which the modified embodiment of Fig. 21 is switched to the left/right juxtaposition but the width is automatically narrowed.

1‧‧‧ frame

2‧‧‧Central Rotating Seat

3‧‧‧cantilever

4‧‧‧ seats

11‧‧‧Front wheel arm

12‧‧‧ Rear wheel arm

13‧‧‧ cart handle

22‧‧‧ Connecting rod

23‧‧‧Axis

24‧‧‧Fixed Department

25‧‧‧Rotation

26‧‧‧ Spring-biased latches

27‧‧‧ Fixed disk

32‧‧‧ lateral position

41‧‧‧ forward position

43‧‧‧ Turntable

44‧‧‧Connecting Department

45‧‧‧ fulcrum

110‧‧‧front wheel

120‧‧‧ Rear wheel

Claims (10)

A convertible seat and type two-seater stroller comprising: a frame (1) having at least one front wheel arm (11) for connecting a pair of front wheels (110) and a rear wheel arm (12) for connection A pair of rear wheels (120), and a cart handle (13) are coupled to the rear of the frame (1); a center swivel (2) coupled to the front wheel arm (11) and the rear wheel arm (12) Between the two; a pair of cantilevers (3) pivotally connected to the frame (1) by the central rotating seat (2), pivotable to a longitudinal position (31) and a lateral position (32), And at least can be locked in the lateral position (32); and a pair of seats (4) are respectively connected to the two ends of the pair of cantilevers (3) by a connecting portion (44), and the pair of cantilevers (3) When locked in the longitudinal position (31) and the lateral position (32), it can be synchronously rotated to a forward position (41), so that the two-seat stroller can be converted into a two-seat type of front/rear arrangement. (18) and a left/right juxtaposition of the two-seat type (19). The convertible seat-type and two-seat stroller of claim 1, further comprising a spring-biased latching member (42) mounted to the pair of seats (4) Between the pair of cantilevers (3), the pair of seats (4) are locked so as not to be rotatable relative to the pair of cantilevers (3). According to the two-seat stroller of the convertible seat and type according to claim 2, wherein the connecting portion (44) of each pair of seats (4) respectively fixes a turntable (43), and the center The inner portion of the rotary seat (2) is fixed with a shaft center (23) for rotatably sleeved with a drive plate (21); the drive plate (21) is respectively connected to each of the turntables (43) via a pair of connecting rods (22) Linking; the pair of seats (4) are rotated when the spring-biased latching member (42) is released, and via the drive disc (21), the pair of links (22) and each of the dials (43) Coupling, the pair of seats (4) are synchronously rotated, and are synchronously rotated and fixed to the front when the pair of cantilevers (3) are locked in the longitudinal position (31) and the lateral position (32) Position (41) allows the two-seat stroller to be converted into a two-seat type (18) with a front/rear arrangement and a two-seat type (19) with a left/right side. The two-seat stroller of the convertible seat and type according to claim 1, wherein the connecting portion (44) of each pair of seats (4) respectively fixes a turntable (43), and the center The inner portion of the rotary seat (2) is fixed with a shaft center (23) for fixing a fixed disc (27); the fixed disc (27) is interlocked with each of the turntables (43) via a pair of connecting rods (22); When the pair of cantilevers (3) are turned from the longitudinal position (31) to the lateral position (32), the pair of links (22) will pull each of the dials (43) to cause the pair of seats (4) to be turned toward the The front position (41) allows the two-seat stroller to be converted from the front/rear aligned two-seat type (18) to the left/right juxtaposed two-seat type (19). The two-seat stroller of the convertible seat and type according to claim 1, wherein the connecting portion (44) of each pair of seats (4) respectively fixes a turntable (43), and the center The inner portion of the rotary seat (2) is fixed with a shaft center (23) for connecting to a fixed disc (27); the fixed disc (27) is respectively linked with each of the turntables (43) via a pair of connecting rods (22); When the pair of cantilevers (3) are turned from the lateral position (32) to the longitudinal position (31), the pair of links (22) will pull each of the dials (43) to cause the pair of seats (4) to turn toward the The front position (41) allows the two-seat stroller to be converted from the left/right juxtaposed two-seat type (19) to the front/rear aligned two-seat type (18). The convertible seat-type and two-seat stroller according to any one of claims 1 to 5, wherein the central seat (2) comprises a fixing portion (24) and a rotating portion ( 25) and a spring-biased latch member (26), wherein the fixing portion (24) is for connecting the front wheel arm (11) and the rear wheel arm (12); the rotating portion (25) and the pair The cantilever (3) is fixedly connected to the fixing portion (24); the spring-biased latch member (26) is controllably disposed between the fixing portion (24) and the rotating portion (25), The pair of cantilevers (3) are locked to the longitudinal position (31) and the lateral position (32). A convertible seat and type two-seater stroller comprising: a frame (1) having at least one front wheel arm (11) for connecting a pair of front wheels (110) and a rear wheel arm (12) for connection a pair of rear wheels (120), and a cart handle (13) are coupled to the rear of the frame (1); a central rotary seat (2) includes a fixing portion (24) for connecting the front wheel arm (11) and the rear wheel arm (12), and a rotating portion (25) for lockingly locking relative to the fixing portion (24) Rotating; a pair of cantilevers (3) connected to the rotating portion (25) of the central rotating seat (2), pivotable to a longitudinal position (31) and a lateral position (32), and at least lockable to The lateral position (32); and a pair of seats (4) are slidably pivoted by the connecting portion (44) to one end of the pair of cantilevers (3) away from the central rotating seat (2), and The pair of links (22) are interlocked with the fixing portion (24) of the center socket (2); when the pair of cantilevers (3) are locked at the longitudinal position (31), the pair of seats (4) are automatically Rotating to a forward position (41), and when the pair of cantilevers (3) are locked in the lateral position (32), the pair of seats (4) are automatically rotated to a position facing forward and close to each other, The two-seater stroller can be converted into a two-seat type (18) with a front/rear arrangement and a two-seat type (20) with a left/right juxtaposition but an automatically narrowed width. The two-seat stroller of the convertible seat and type according to claim 7, wherein the fixing portion (24) of the central seat (2) further comprises: a shaft center (23); a fixed plate (27) connected to the shaft center (23); the fixing plate (27) is provided with a pair of lateral grooves (270) for pivotally and slidably connecting the ends of the pair of links (22); and the center The rotating portion (25) of the rotary seat (2) further includes a rotating member (28) for driving the end of the pair of links (22) to slide along the pair of lateral grooves (270). The two-seat stroller of the convertible seat and type according to claim 8, wherein the rotating member (28) is provided with a guiding groove (280) for the end of the pair of connecting rods (22) Passing through the pair of transverse grooves (270) for pivotal sliding, and when the fixed disk 27 is rotated to the lateral position with the pair of cantilevers (3), the pair of links (22) are driven by the guiding groove (280) The ends of the slides are slid along the pair of lateral grooves (270) to reduce the distance between the pair of seats (4), and are converted into the left/right juxtaposed but automatically narrowed double seat type (20). According to any one of claims 1 to 5 and 7 to 9, the connecting portion (44) includes a shaft (45).