JPS6112293Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a folding stroller.
More specifically, the present invention relates to a folding stroller in which the inclination angle of the backrest rod to which a backpack is attached can be changed and adjusted.

Conventional technology: In contrast to the manual lever, the inclination angle of the backrest rod and the backrest auxiliary rod can be adjusted to the initial stage, middle stage, and
Foldable strollers that can be adjusted to three final stages are already available on the market. However, in this stroller, when the backrest rod is tilted from the initial position to the middle position, the backrest auxiliary rod is at an angle to the backrest rod and tilts forward. Although the head tilts backwards according to the inclination of the head, the backrest support rod tilts forward, causing the head to slouch forward, resulting in an unnatural and bad posture.

Problems to be Solved by the Invention The present invention was devised in order to eliminate the above-mentioned drawbacks of the conventional stroller that adjusts the inclination angle of the backrest rod by a reclining operation.
When the backrest rod and the backrest auxiliary rod are in the initial and middle stages, they maintain the same linear form, and the seat and backrest support are placed horizontally in order to allow the infant to sleep, creating the so-called box shape (final stage). ) To provide a folding stroller which can be used as a pillow by tilting the back support rod upright when the stroller is in the position of 1.

Means for solving the problem The mounting bracket 25 attached to the lower part of the push rod 1,
25, the lower part of the backrest rod 27, which can be raised and lowered by a reclining operation, is pivotally connected by pins 28, 28,
Connection plates 33, 33 having semicircular arc-shaped holes 34, 34 are attached to the upper part of the backrest rod 27, and a sliding shaft 35, which is slidably inserted into the semicircular arc-shaped holes 34, 34, is attached to the upper part of the backrest rod 27.
The lower end of the backrest auxiliary rod 36 is slidably connected to the connecting plate 33 by the connecting plate 35, and the side rods 37, 37 whose one end is pivotally connected to the hand lever 1 by the pins 39, 39, are connected to the other end by the pin 38, 38, it is pivotally connected to the backrest support rod 36.

Function When the backrest rod 27 and the backrest auxiliary rod 36 are in the initial state, the sliding shafts 35, 35 are in the semicircular arc-shaped hole 3.
4, 34, the backrest rod 27 and the backrest auxiliary rod 36 maintain the same straight line, and from this state, the backrest rod 27 and the backrest auxiliary rod 36 are slightly inclined by a reclining operation. In the middle stage, the backrest auxiliary rod 36 is pulled by the tensile force of the side rods 37, 37, and moves and descends together with the sliding shafts 35, 35 to the lower position of the semicircular arc-shaped holes 34, 34. The backrest rod 27 and the backrest auxiliary rod 36 maintain the same straight state as in the initial stage. Next, in order to put the infant to sleep, the backrest rod 27 is tilted horizontally to the seat 40 by a reclining operation to reach the final stage of the so-called box shape. Since the backrest auxiliary rod 36 is lowered by moving to the lowest position of the holes 34, 34, the backrest auxiliary rod 36 does not go down any further. ，
37 to stand up.

Embodiment To explain this invention based on the drawings, reference numeral 1 is an inverted U-shaped hand lever, in the middle of which a U-shaped armrest lever 2 is pivoted at both ends by pins 3, 3, Connect the tips of the rear leg rods 5, 5 to the connecting pieces 4, 4 provided in the pin 6,
6, and the tips of the front leg levers 8, 8 are connected to the connecting pieces 7, 7 provided on the rear leg levers 5, 5 with pins 9, 9.
The rear wheels 11, 11 are mounted on both ends of the rear wheel axle 10, which is pivotally connected to the rear leg levers 5, 5 and attached to the lower ends of the rear leg rods 5, 5.
Further, front wheels 13, 13 are rotatably attached to both ends of a front wheel shaft 12 attached to the lower ends of the front leg levers 8, 8, respectively.

Reference numerals 14 and 14 denote connecting rods, which are constructed by pivotally connecting the tips of straight rods 15, 15 and tapered rods 16, 16 with pins 17, 17, and the other ends of the straight rods 15, 15 are connected with pins 18, 18. The other ends of the dog-shaped rods 16, 16 are pivotally connected to the push rod 1 by pins 19, 19, and the intermediate portion is connected to the pin 2.
0 and 20 to connect the hand lever 1, the rear leg levers 5, 5, and the front leg levers 8, 8 so as to be freely assembled and foldable.

Reference numerals 21 and 21 denote latching metal fittings having concave notches 22, 22, which are attached to both ends of a connecting rod 23 that is pivotally supported at the bottom of the push rod 1, and when the vehicle body is assembled, the hooks are attached to the lever. Latching shaft 24 provided on 16, 16,
24 engages with the recessed notches 22, 22, and when the vehicle body is folded, the latching shafts 24, 24 are detached from the recessed notches 22, 22 by rotating the latching fittings 21, 21. There is.

25, 25 are mounting brackets attached to the lower part of the hand lever 1, and have downward protruding holes a, a, a', a', a'',
Comb-shaped holes 26, 26 each having a shape of "a" are bored therein, and an inverted U-shaped backrest rod 27 is pivotally attached to the mounting brackets 25, 25 by pins 28, 28. The operating rod 29 is connected to the lifting rod 30, and the operating rod 29 and the latch fittings 21, 21 are connected by springs 32, 32. Then, both ends of the operating rod 29 are attached to the mounting fittings 25, 25. The protruding holes a, a, a', a of the comb-shaped holes 26, 26 are inserted through the comb-shaped holes 26, 26 and the long holes 31, 31 provided in the backrest rod 27, and the operating rod 29 is reclined. The backrest rod 27 can be maintained at a desired inclination angle by fitting it into any of the holes ', a'', and a''.

Reference numerals 33, 33 denote connection plates attached to the upper part of the backrest rod 27, and semicircular arc-shaped holes 34, 34 are bored therein, and sliding shafts 35, 35 are inserted into these holes 34, 34 to connect the sliding shafts. Both ends of the backrest auxiliary rod 36 are attached to the connecting plates 33, 33 by 35, 35. Reference numerals 37 and 37 denote side rods, one end of which is pivotally connected to the backrest auxiliary rod 36 through pins 38, 38, and the other end is pivotally connected to the hand support rod 1 through pins 39, 39.

This invention has the above-mentioned structure, and the stroller body is folded and assembled by holding the push rod 1 and the armrest rod 2 and pulling it inward, and then it is latched to the recessed parts 22, 22 of the latching fittings 21, 21. The hanging shafts 24, 24 have come off, and the hand lever 1, the armrest lever 2, the rear leg lever 5, 5, the front leg lever 8,
8 and the connecting rods 14, 14 are rotated and folded around respective pins that pivotally connect them. On the other hand, if you hold the hand lever 1 and the shoulder lever 2 and pull them outward, the hand lever 1, the arm lever 2, the rear leg levers 5, 5, the front leg levers 8, 8, and the connecting levers 14, 14 will rotate around each pin. The locking shafts 24, 24 are engaged with the recessed notches 22, 22, and assembled.

Next, to adjust the inclination angle of the backrest rod 27, pull up the operating rod 29 by holding the lifting rod 30.
a", and when the backrest rod 27 is tilted back and forth until the desired angle of inclination is reached, the operator releases the pull-up rod 30. The operating rod 29 is pulled by the springs 32, 32, and the comb-shaped holes 26, 26 The backrest rod 27 is inserted into the protruding hole corresponding to the inclination angle of the two, and the backrest rod 27 is changed and maintained at the desired inclination angle.
3, the backrest auxiliary rod 36 is connected to the backrest rod 27 via the sliding shafts 35, 35 when the backrest auxiliary rod 36 is tilted from the initial state to the intermediate state. Semicircular arc-shaped hole 3 provided in 33, 33
4 and 34 to descend, it maintains the same inclination form as the backrest rod 27, but the backrest rod 27 is
When the backrest auxiliary rod 36 is tilted to the final stage so as to be horizontal at 0, the backrest auxiliary rod 36 is pulled up by the side rods 37, 37 and stands up.

Effects of the device As stated above, when the inclination angle of the backrest rod 27 is changed from the initial stage to the middle stage, the backrest auxiliary rod 3
When the child 6 stands up, the infant's head may bend forward in response to the inclination of the upper body, which may result in poor posture. According to the present invention, even if the inclination angle of the backrest rod 27 is changed from the initial stage to the middle stage, the backrest auxiliary rod 36 does not stand up and remains in the same state as the inclination of the backrest rod 27. There is no risk of poor posture for young children. Backrest rod 27 and seat 4 for sleeping infants
In the final step of bringing the stroller into a horizontal position, the back support rod 36 stands up and can be used as a pillow, making it extremely suitable for use as a stroller.

[Brief description of the drawings]

Figure 1 is a side view of the proposed folding stroller, Figure 2
The figure is a rear view, and FIG. 3 is an enlarged perspective view of the main parts. In the figure, 1 is the hand lever, 25, 25 are the mounting brackets, 27 is the backrest lever, 28, 28 are the pins, 33, 3
3 is a connecting plate, 34, 34 is a semicircular arc-shaped hole, 35,
35 is a sliding shaft, 36 is a back support rod, 37, 37 are side rods, and 38, 38 and 39, 39 are pins.

Claims (1)

[Scope of utility model registration request] The lower part of the backrest rod 27, which can be raised and lowered by a reclining operation, is pivotally attached to the mounting brackets 25, 25 attached to the lower part of the pusher rod 1 of the stroller, which can be folded and assembled freely, using pins 28, 28. Connecting plate 3 with semicircular arc-shaped holes 34, 34 bored in the upper part
3, 33 are attached, and the lower end of the backrest auxiliary rod 36 is slidably connected to the connecting plates 33, 33 by sliding shafts 35, 35 which are slidably inserted into the semicircular arc-shaped holes 34, 34, Also, one end of the side rod 37, 37 is pivotally connected to the hand lever 1 by pins 39, 39, and the other end of the side rod 37 is connected to the pin 3.
A folding stroller which is pivotally connected to a back support rod 36 by means of 8 and 38.