JP6639168B2 - baby carriage - Google Patents

Description

  The present invention relates to a stroller with a removable handle, and more particularly to a stroller that is compact when packed.

  Foldable baby carriages are widely used. For example, in the baby carriage disclosed in Patent Literature 1, it is possible to fold the front leg and the handle so as to approach each other in a side view. The folded baby carriage can have a compact size in the front-rear direction, and is suitable for carrying and packing.

  However, in the baby carriage disclosed in Patent Literature 1, the handle protrudes greatly when folded, and it is desired to further reduce the size in the vertical direction. Therefore, for example, Patent Document 2 discloses a stroller in which the height of a handle can be adjusted. The stroller disclosed in Patent Literature 2 slides and lowers the handle at the time of folding, thereby suppressing protrusion of the handle and reducing the size in the vertical direction.

JP 2011-063097 A JP-A-08-324439

  Recently, there has been a demand for a stroller that is more compact at the time of packing in order to improve the transport efficiency of the stroller. However, even with the baby carriage disclosed in Patent Literature 2, the protrusion of the handle cannot be sufficiently suppressed due to the structural restriction of the slide mechanism, and the need for improving the transport efficiency has not been sufficiently satisfied.

  The present invention has been made in view of such a point, and an object of the present invention is to provide a stroller having a compact size at the time of packing in a form excellent in practicality.

A stroller according to the present invention includes a frame body having a shaft-shaped member, and a handle detachably attached to the frame body via the shaft-shaped member,
The handle is a fixed plate having a handle frame and an insertion hole into which the shaft-like member is inserted, and a locking position for restraining the shaft-like member inserted into the insertion hole, and a lock position of the shaft-like member. It has a fixed plate supported by the handle frame so as to be movable between a release position where the restraint is released, and a biasing member that biases the fixed plate to the locked position.

  In the stroller according to the present invention, a through-hole through which the shaft-shaped member passes is formed in the handle frame, and the through-hole of the handle frame is provided such that the fixing plate is located at any of the lock position and the release position. Even if it does, it may face the insertion hole of the fixing plate at least partially.

  In the stroller according to the present invention, the shaft-shaped member is formed with a groove extending in a circumferential direction of the shaft-shaped member, and the fixing plate is provided at the lock position with the shaft-shaped member inserted into the insertion hole. It may be configured to partially enter the groove.

  In the baby carriage according to the present invention, the shaft-shaped member may include a head and a base sectioned through the groove, and the head may be tapered.

  In the stroller according to the present invention, the insertion hole of the fixing plate includes: a locking region that overlaps with the shaft member in an axial direction of the shaft member when the fixing plate is located at the locking position; When located in the release position, the shaft-like member and a release region that overlaps in the axial direction of the shaft-like member, the lock region and the release region partially overlap, the shaft The locking region may be smaller than the head of the shaft member, and the release region may be larger than the head of the shaft member when viewed from the axial direction of the shaft member.

  In the baby carriage according to the present invention, the shaft member, the fixing plate, and the urging member are provided one by one on the left and right sides of the baby carriage, and the left and right shaft members are orthogonal to the axial direction of the shaft member. The cross-sectional shapes of the cross sections may be different from each other.

  According to the present invention, by packing in a state where the handle is removed from the frame main body, the size at the time of packing can be made compact. On the other hand, at the time of assembly, after inserting the shaft-shaped member of the frame main body into the insertion hole of the fixed plate of the handle, and moving the fixed plate to the lock position using the biasing member, the handle is assembled to the frame main body. Therefore, it is excellent in practicality.

The perspective view which shows the stroller by one Embodiment in the state which removed the seat. The side view of the baby carriage shown in FIG. The side view which shows the stroller shown in FIG. 2 in the folded state. FIG. 2 is an enlarged perspective view showing an attachment structure of a frame body and a handle in the stroller shown in FIG. 1. FIG. 2 is a front view showing a handle incorporated in the baby carriage shown in FIG. 1. The perspective view which expands and shows the state which the mounting pin of the frame main body was inserted in the mounting tool of the handle. The front view of FIG. The side view of FIG. FIG. 7 is an enlarged perspective view showing a mounting pin of the frame main body shown in FIG. 6. The figure which shows the fixing plate of the fixture shown in FIG. FIG. 9 is a side view showing a state where the fixing plate of the fixture shown in FIG. 8 is moved to a release position. FIG. 5 is a front view showing a state in which the mounting pins of the frame main body abut on the fixing plate. Sectional drawing which shows an example of the left mounting pin. Sectional drawing which shows an example of the right mounting pin.

  Hereinafter, an embodiment and a modified example thereof will be described with reference to FIGS. 1 and 2 are a perspective view and a side view, respectively, showing a stroller 1 in one embodiment with a seat removed. FIG. 3 is a side view showing the baby carriage 1 shown in FIG. 2 in a folded state. The baby carriage 1 is a folding baby carriage, and the baby carriage 1 in the folded state has a compact size in the front-back direction d1 and the up-down direction d2, as shown in FIG.

  In the present specification, the terms “front”, “rear”, “up”, and “down” with respect to the baby carriage 1 are referred to as “front” with respect to an infant riding the baby carriage 1 unless otherwise specified. Means "after", "above" and "below". Therefore, the “front-back direction d1” corresponds to a direction connecting the lower left and the upper right of the paper surface in FIG. Unless otherwise specified, “front” is the side to which the infant who gets on the vehicle faces, and the lower left side of the paper surface in FIG. 1 is the “front side”. On the other hand, the “vertical direction d2” is a direction orthogonal to the front-rear direction d1 and orthogonal to the contact surface of the baby carriage 1. Therefore, when the ground contact surface of the stroller 1 is a horizontal plane, the “vertical direction d2” refers to the vertical direction. The “width direction (lateral direction) d3” is a direction orthogonal to both the “front-back direction d1” and the “up-down direction d2”. Further, “right” and “left” also mean “right” and “left” in the width direction d3 with respect to the infant riding on the stroller 1, respectively.

  The baby carriage 1 shown in FIGS. 1 and 2 is provided with a main body frame 10 having a pair of front legs 11, a pair of rear legs 12, and a pair of armrests 13, and a handle 20 is detachably attached to the main body frame 10. ing. A front wheel 2 is attached to each front leg 11, and a rear wheel 3 is attached to each rear leg 12.

  An upper end portion of the front leg 11 is rotatably connected to a front portion of an armrest 13 arranged on a corresponding side (left side or right side). Similarly, an upper end portion of the rear leg 12 is rotatably connected to a front portion of an armrest 13 arranged on a corresponding side (left side or right side).

  The rear portion of the armrest 13 is connected via a link member 14 and a rotating bracket 15 to an intermediate portion of the rear leg 12 arranged on the corresponding side (left or right).

  The handle 20 is attached to the main body frame 10 having the above configuration. The handle 20 is configured to be swingable between a rear-side pressing position shown in FIG. 1 and a facing-side pressing position shown in FIG.

  The stroller 1 having the overall configuration as described above can be folded by rotating the respective components as follows. First, when folding the stroller 1 in the unfolded state shown in FIG. 2, the handle 20 disposed at the rear position is once pulled up and then pushed down. With the operation of the handle 20, the link member 14 and the rotation bracket 15 are separated from the rear leg 12, and the rotation bracket 15 rotates clockwise with respect to the rear leg 12 in FIG. In addition, with this operation, the armrest 13 rotates clockwise with respect to the link member 14 in FIG.

  As shown in FIG. 3, by such an operation, the handle 20 and the front leg 11 are arranged substantially in parallel and the arrangement position of the handle 20 is lowered in a side view, and the stroller 1 can be folded. In order to deploy the baby carriage 1 from the folded state, the reverse operation of the above-described folding operation may be performed.

  By the way, the stroller 1 according to the present embodiment is configured so that the handle 20 is detached from the frame main body 10 in a packed state, and the handle 20 is attached to the frame main body 10 with one touch at a place of use in order to improve transportation efficiency. ing. Hereinafter, the mounting structure of the frame main body 10 and the handle 20 will be described with reference to FIGS. FIG. 4 is an enlarged perspective view showing an attachment structure between the frame main body 10 and the handle 20. As shown in FIG. 4, a mounting pin 16 protrudes outward from the rotating bracket 15 in the width direction d3, and a mounting tool 30 of the handle 20 is mounted on the mounting pin 16.

  FIG. 5 shows the handle 20 in an enlarged manner. As shown in FIG. 5, the handle 20 is configured by incorporating fittings 30 at both ends of a U-shaped handle frame 21. A pair of lead portions 22 arranged on the left and right are provided as elements constituting the handle frame 21, and the operation portion 23 connects the upper ends of the pair of lead portions 22 to each other. The operation unit 23 is a part that is manually operated by the user so that the baby carriage 1 in the deployed state travels. In the example shown in the figure, a curved operation portion 23 is bridged between the upper ends of the linear left and right lead portions 22, and the handle frame 21 is formed in a substantially U-shape.

  One attachment 30 is attached to the end of each lead 22. The attachment 30 is a part for attaching the handle frame 21 to the frame main body 10 in a one-touch manner. 6 to 8 show the mounting tool 30 in an enlarged state with the mounting pin 16 inserted. As shown in FIGS. 6 to 8, a casing 31 is fitted to an end of the lead portion 22 as an element constituting the attachment 30. The casing 31 is formed in a tubular shape, and accommodates and protects the end of the lead portion 22 and other components constituting the mounting fixture 30. The casing 31 has an escape hole 31a through which the mounting pin 16 passes.

  A mounting component 32 is fixed in the casing 31, and a fixing plate 33 is supported by the mounting component 32. The mount component 32 is provided at a position outside the lead portion 22 in the width direction d3 in the space in the casing 31, and is configured as a plate-shaped component that hangs downward from an upper edge of the casing 31. The mount component 32 is fitted to the upper edge of the casing 31 and has a downwardly open lower end provided with a receiving portion 32a.

  The fixing plate 33 is inserted into the housing portion 32a from below. The accommodating portion 32a includes a front wall 32b and a rear wall 32c opposed in the front-rear direction, a pair of side walls 32d and 32e opposed in the width direction d3, and a front wall 32b, a rear wall 32c and a pair of side walls 32d and 32e. It is partitioned by the upper wall 32f located. These walls 32b-32f which divide the accommodating part 32a surround the periphery of the fixed plate 33 accommodated in the accommodating part 32a, and regulate the moving range of the fixed plate 33. Thus, the fixing plate 33 is movably supported by the mount component 32 in the up-down direction d2. In other words, the fixing plate 33 is movably supported by the handle frame 21 via the casing 31 and the mount component 32 in the vertical direction d2.

  The fixing plate 33 is a component for locking the mounting pin 16. As shown in FIGS. 6 to 8, the fixing plate 33 is configured as a plate-like component having an insertion hole 34 into which the mounting pin 16 is inserted. Particularly, in the present embodiment, the through hole 24 is also formed in the lead portion 22 of the handle frame 21, and the mounting pin 16 passes through both the through hole 24 of the lead portion 22 and the insertion hole 34 of the fixing plate 33. are doing. The through hole 24 of the lead portion 22 and the insertion hole 34 of the fixing plate 33 have a longitudinal axis along the width direction d3.

  FIG. 9 shows the mounting pin 16 in an enlarged manner. As shown in FIG. 9, the mounting pin 16 as a shaft member has a longitudinal axis X along the width direction d3 and protrudes outward from the rotation bracket 15 in the width direction d3. A groove 16c extending in the circumferential direction d4 of the mounting pin 16 is formed in the mounting pin 16, and the head 16a and the base 16b are separated through the groove 16c. In the present embodiment, both ends of the groove 16c are connected to form a ring.

  As shown in FIG. 9, the base 16 b of the mounting pin 16 is attached to the turning bracket 15, and the head 16 a located outside the base 16 b in the width direction d <b> 3 forms the tip farthest from the turning bracket 15. . The head 16a tapers toward the outside in the width direction d3.

  FIG. 10 shows the fixing plate 33 in an enlarged manner. As shown in FIG. 10, the insertion hole 34 of the fixing plate 33 includes a locking area 34a and a release area 34b that partially overlap. The lock area 34a and the release area 34b have circular contours when viewed from the direction shown in FIG. 10, in other words, when viewed from the axial direction X of the mounting pin 16. In particular, the diameter φ1 of the locking area 34a is smaller than the diameter φ3 of the head 16a of the mounting pin 16 (see FIG. 8), and the diameter φ2 of the release area 34b is smaller than the diameter φ3 of the head 16a of the mounting pin 16. Is also big. That is, when viewed from the direction shown in FIG. 10, the locking area 34a is smaller than the head 16a of the mounting pin 16, and the release area 34b is larger than the head 16a of the mounting pin 16.

  In the example shown in FIG. 10, the lock area 34a is located below the release area 34b in the vertical direction d2, and the fixed plate 33 is movable in the vertical direction d2 within the accommodation portion 32a of the fixed plate 33. I have. According to such an embodiment, when the fixing plate 33 is located relatively upward, the locking region 34a faces the head 16a of the mounting pin 16 and the through hole 24 of the lead portion 22, and the fixing plate 33 is When it is located at a lower position, the release region 34b faces the head 16a of the mounting pin 16 and the through hole 24 of the lead portion 22.

  FIG. 11 shows a state where the head 16 a of the mounting pin 16 faces the release area 34 b of the insertion hole 34. As shown in FIG. 11, when the head 16a of the mounting pin 16 faces the release area 34b of the insertion hole 34, the head 16a has a smaller diameter than the release area 34b. It can pass in the direction X. The position of the fixing plate 33 at which the head 16a of the mounting pin 16 can pass through the release area 34b of the insertion hole 34 is referred to as a release position P2.

  On the other hand, as shown in FIG. 8, when the head 16a of the mounting pin 16 faces the locking area 34a of the insertion hole 34, the head 16a has a larger diameter than the locking area 34a. Cannot be passed through in the axial direction X. The position of the fixing plate 33 where the head 16a of the mounting pin 16 cannot pass through the locking area 34a of the insertion hole 34 in this manner is referred to as a lock position P1. At the lock position P1, the fixing plate 33 partially enters the groove 16c of the mounting pin 16 inserted into the lock area 34a.

  A spring 35 as an urging member is stretched between the lower end of the casing 31 and the fixed plate 33. The spring 35 presses the fixing plate 33 upward toward the inside of the accommodation portion 32a of the mount component 32, in other words, biases the fixing plate 33 to the lock position P1. Further, the spring 35 presses the fixing plate 33 into the housing portion 32a, thereby preventing the fixing plate 33 from falling out of the housing portion 32a. In the illustrated example, the extension piece 33a extends downward from another portion of the fixing plate 33, and a spring 35 is wound around the extension piece 33a.

  Next, an operation of attaching the handle 20 having the above configuration to the frame body 10 will be described with reference to FIG. FIG. 12 is a front view showing a process of attaching the handle 20 to the frame main body 10.

  First, from the state shown in FIG. 4, the mounting pins 16 of the frame main body 10 are inserted into the mountings 30 of the handle 20. As shown in FIG. 12, the inserted mounting pin 16 passes through the through hole 24 of the handle frame 21 and then moves toward the insertion hole 34 of the fixing plate 33. As described above, since the fixing plate 33 is pressed to the lock position P1 by the spring 35, the head 16a of the mounting pin 16 faces the lock area 34a and tries to enter the lock area 34a. I do. However, since the head 16a has a larger diameter than the locking area 34a, it cannot pass through the locking area 34a and abuts on the fixed plate 33.

  Here, the head 16a of the mounting pin 16 is tapered toward the outside in the width direction d3. Therefore, when the head 16a of the mounting pin 16 is further pushed into the fixing plate 33, the fixing plate 33 is pushed down according to the shape of the head 16a. Thereafter, when the head 16a of the mounting pin 16 is further pushed into the fixing plate 33, the fixing plate 33 is pushed down to the release position P2 shown in FIG. 16a.

  When the head 16a is further pushed into the fixing plate 33, the head 16a passes through the release area 34b. As described above, since the fixing plate 33 is urged by the spring 35, the elastic force of the spring 35 is released as soon as the head 16a passes through the release area 34b, and the fixing plate 33 is moved to the lock position P1. Pushed back. Thus, as shown in FIGS. 6 to 8, the fixing plate 33 enters the groove 16c of the mounting pin 16, and the mounting pin 16 is restrained.

  When removing the handle 20 from the frame main body 10, the fixing plate 33 is pushed up to the release position P <b> 2 using a dedicated tool so that the user cannot easily remove the handle 20, and then the mounting pin 16 is removed from the insertion hole 34. Good.

  As described above, according to the present embodiment, the frame body 10 having the shaft member 16 and the handle 20 detachably attached to the frame body 10 via the shaft member 16 are provided. A fixing plate 33 having a handle frame 21 and an insertion hole 34 into which the shaft member 16 is inserted, wherein the lock position P1 for restraining the shaft member 16 inserted into the insertion hole 34 and the shaft member 16 And a biasing member 35 biasing the fixed plate 33 to the lock position P1 so as to be movable between a release position P2 for releasing the restraint of the fixed plate 33 and the handle frame 21. According to such an embodiment, by packing in a state where the handle 20 is removed from the frame main body 10, the size at the time of packing can be made compact. On the other hand, at the time of assembly, after the shaft-like member 16 of the frame body 10 is inserted into the insertion hole 34 of the fixing plate 33 of the handle 20, the fixing plate 33 is moved to the lock position P1 using the biasing member 35. In this case, the handle 20 can be assembled to the frame main body 10, so that the handleability is excellent.

  Further, according to the present embodiment, the handle frame 21 is formed with the through-hole 24 through which the shaft-like member 16 penetrates. In any case of P2, it faces at least partially the insertion hole 34 of the fixing plate 33. By passing the shaft member 16 also through the through hole 24 of the handle frame 21, the shaft member 16 can be received even by the handle frame 21 having high rigidity. As a result, it contributes to assembling the handle 20 to the frame main body 10 stably.

  According to the present embodiment, the groove 16c extending in the circumferential direction d4 of the shaft member 16 is formed in the shaft member 16, and the fixing plate 33 is inserted into the insertion hole 34 at the lock position P1. The shaft member 16 partially enters the groove 16 c of the shaft member 16. According to such an embodiment, since the fixed plate 33 partially enters the groove 16c of the shaft member 16 at the lock position P1, the shaft member 16 is less likely to shift in the axial direction X of the shaft member 16. Thus, the fixing plate 33 can more stably restrain the shaft-shaped member 16, and as a result, contributes to assembling the handle 20 to the frame main body 10 more stably.

  Further, according to the present embodiment, shaft-shaped member 16 includes a head 16a and a base 16b that are divided via groove 16c, and head 16a is tapered. In this case, even if the fixing plate 33 is biased in advance to the lock position P1 by the biasing member 35, the fixing plate 33 is moved to the release position P2 as the head 16a of the mounting pin 16 is pushed into the fixing plate 33 during assembly. Can be shifted toward. For this reason, the mounting pin 16 can be easily inserted into the insertion hole 34. As a result, the handle 20 can be easily assembled to the frame main body 10, and the practicality is further improved.

  In addition, according to the present embodiment, when the fixing plate 33 is located at the lock position P1, the insertion hole 34 of the fixing plate 33 is a lock that overlaps with the shaft member 16 in the axial direction X of the shaft member 16. Area 34a and a release area 34b that overlaps in the axial direction X of the shaft member 16 when the fixing plate 33 is located at the release position P2, and includes a lock area 34a and a release area 34b. The region 34b partially overlaps, and when viewed from the axial direction X of the shaft member 16, the locking region 34a is smaller than the head 16a of the shaft member 16, and the release region 34b is It is larger than the head 16a. In this case, by utilizing the difference in size between the locking area 34a and the release area 34b, a state in which the fixing plate 33 restrains the shaft member 16 and a state in which the shaft member 16 is released are used. Can be switched. For this reason, since the fixing plate 33 can be realized with a simple structure, it is excellent in practicality.

  In the above-described embodiment, the left and right shaft members 16 and the left and right attachments 30 may have the same structure or different structures for each member. 13 and 14 show examples in which the left and right shaft members 16 have different structures. In the example shown in FIGS. 13 and 14, the left mounting pin 16 has a polygonal shape, more specifically a pentagonal shape in a cross section orthogonal to the axial direction X, and the right mounting pin 16 is It has a polygonal shape different from the left-side mounting pin 16 in a cross section orthogonal to X, more specifically, a square shape. That is, the outer contours 16m of the left and right mounting pins 16 in a cross section orthogonal to the axial direction X are not overlapped with each other and are shifted.

  In this case, it is possible to prevent the handle 20 from being turned right and left and assembled to the frame body 10. That is, for example, even if the attachment 30 attached to the left lead portion 22 is to be assembled to the right attachment pin 16, the fixing plate 33 to the insertion hole 34 of the left attachment 30 conform to the shape of the right attachment pin 16. Without this, it cannot be assembled by reversing left and right.

  In addition, the method of preventing the handle 20 from being assembled left and right with respect to the frame main body 10 is not limited to the examples illustrated in FIGS. 13 and 14, and various methods are conceivable. As other examples, for example, there is a plan in which the sizes of the left and right mounting pins 16 are different, or the positions of the left and right mounting pins 16 are left and right asymmetric.

  In addition to such a physical method, a method of preventing the handle 20 from being left-right inverted and assembled to the frame body 10 by a visual method is also conceivable. For example, different colors are given between the left and right mounting pins 16 and between the left and right casings 31 to identify the left and right, or different marks are given between the left and right rotating brackets 15 and between the left and right casings 31. There is a plan to identify left and right. In particular, as an example in which different marks are provided on the left and right, there is an example in which numerals and "left and right" characters are displayed by engraving or printing.

1 Baby carriage 10 Frame body 16 Shaft-shaped member (mounting pin)
16a Head 16b Base 16c Groove 20 Handle 21 Handle frame 24 Through hole 30 Fitting 31 Casing 32 Mounting component 32a Housing 33 Fixing plate 34 Insertion hole 34a Lock area 34b Release area 35 Biasing member (spring)

Claims (6)

A frame body having a shaft-like member;
A handle removably attached to the frame body via the shaft-shaped member,
The handle includes a handle frame,
A fixed plate having an insertion hole into which the shaft-like member is inserted, wherein a lock position for restraining the shaft-like member inserted into the insertion hole and a release position for releasing the restraint of the shaft-like member. A fixed plate supported by the handle frame so as to be movable between the
An urging member for urging the fixing plate to the lock position;
Have a,
The shaft member, the fixing plate and the urging member are provided one by one on the left and right of the stroller,
A stroller provided with means for preventing the handle from being turned left and right and assembled to the frame body . In the handle frame, a through-hole through which the shaft-shaped member passes is formed,
2. The handle frame according to claim 1, wherein the through hole of the handle frame at least partially faces the insertion hole of the fixed plate, regardless of whether the fixed plate is located in the lock position or the release position. 3. The stroller described. A groove extending in a circumferential direction of the shaft member is formed in the shaft member,
The stroller according to claim 1, wherein the fixing plate is configured to partially enter the groove of the shaft-like member inserted into the insertion hole at the lock position. The shaft-shaped member includes a head and a base sectioned through the groove,
The stroller according to claim 3, wherein the head is tapered. The insertion hole of the fixing plate includes a locking region that overlaps the shaft-shaped member and the shaft-shaped member in the axial direction when the fixing plate is positioned at the locking position, and the fixing plate is positioned at the release position. When doing, including a release region overlapping the axial member and the axial direction of the axial member,
The lock area and the release area partially overlap,
The said lock | rock area | region is smaller than the head of the said shaft-shaped member, and the said area | region for release is larger than the head of the said shaft-shaped member when it sees from the axial direction of the said shaft-shaped member. Baby carriage. The baby carriage according to any one of claims 1 to 5, wherein the left and right shaft members have different cross-sectional shapes in a cross section orthogonal to the axial direction of the shaft members.

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