WO2016047407A1 - 乳母車および乳母車に用いられる筒状部材 - Google Patents

乳母車および乳母車に用いられる筒状部材 Download PDF

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Publication number
WO2016047407A1
WO2016047407A1 PCT/JP2015/074992 JP2015074992W WO2016047407A1 WO 2016047407 A1 WO2016047407 A1 WO 2016047407A1 JP 2015074992 W JP2015074992 W JP 2015074992W WO 2016047407 A1 WO2016047407 A1 WO 2016047407A1
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WO
WIPO (PCT)
Prior art keywords
link
baby carriage
rotatably connected
support portion
tubular member
Prior art date
Application number
PCT/JP2015/074992
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
修一郎 宇佐
順一 浅野
山口　勲
Original Assignee
コンビ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コンビ株式会社 filed Critical コンビ株式会社
Priority to CN201580050082.3A priority Critical patent/CN106715237B/zh
Priority to KR1020177007364A priority patent/KR102384481B1/ko
Publication of WO2016047407A1 publication Critical patent/WO2016047407A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/10—Perambulator bodies; Equipment therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/20—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using bayonet connections

Definitions

  • the present invention relates to a baby carriage including a cylindrical member and an end part fixed to the end of the cylindrical member.
  • JP2014-73846A it is widely used to use a baby carriage when taking out an infant.
  • Most baby carriages include a cylindrical part, typically an aluminum alloy pipe having a high specific strength, as a member forming its constituent elements.
  • the cylindrical member is suitable for a baby carriage in that both weight reduction and high rigidity can be realized.
  • end parts are fixed to the end of the cylindrical member.
  • the end part is usually made of a resin molded product and can be easily given a desired shape.
  • the end part has a predetermined shape instead of a cylindrical member having a limit on workability, thereby forming a connection portion with another component.
  • an edge part part improves the safety
  • the cylindrical member used as a constituent element of the baby carriage is reduced in weight, the handleability of the baby carriage is improved.
  • the tubular member may be damaged during use of the baby carriage.
  • the present inventors When the inventors repeated the experiment, when the thickness of the cylindrical member was reduced, and when the cylindrical member was made of a lightweight material, the cylindrical member was broken due to a crack at its end. .
  • the present inventors as a result of earnestly examining the fixing method of the end part to the cylindrical member, the occurrence of cracks at the end of the cylindrical member by adopting a predetermined fixing method. It was found that can be effectively prevented.
  • the present invention is based on such knowledge of the inventors of the present invention, and is intended to reduce the weight of the baby carriage through the weight reduction of the cylindrical member by improving the method of fixing the end part to the cylindrical member. With the goal.
  • the baby carriage according to the present invention is: A tubular member; An end part fixed to at least one open end of the tubular member, and The end part is An inner support portion inserted into the tubular member, the inner support portion having an inner facing surface facing the inner surface of the tubular member in a circumferential region; An outer support portion having an outer facing surface facing the outer surface of the cylindrical member in a circumferential region.
  • the end part may be connected to other components of the baby carriage.
  • the tubular member may be connected to other components of the baby carriage in a portion where the end part is provided.
  • the end part is A first member having the inner support portion and a base portion formed integrally with the inner support portion; A second member formed separately from the first member, and having the outer support portion and a flange portion extending from an end portion of the outer support portion and facing the end surface of the tubular member; , May be included.
  • the end part is A first member having the outer support and a base formed integrally with the outer support; A second member formed separately from the first member, and having the inner support portion and a flange portion extending from an end portion of the inner support portion and facing an end surface of the tubular member; May be included.
  • the end part may further include a base portion formed integrally with both the inner support portion and the outer support portion.
  • a baby carriage according to the present invention comprises a front leg, a rear leg and a handle,
  • the cylindrical member may form at least a part of one or more of the front leg, the rear leg, and the handle.
  • a baby carriage comprises: Front and rear legs, An armrest pivotally connected to the front leg and the rear leg; A first link pivotably connected to the armrest; A second link rotatably connected to the front leg; A third link pivotably connected to the rear leg, The first link is rotatably connected to at least one of the second link and the third link, The second link is rotatably connected to at least one of the first link and the third link, The third link is rotatably connected to at least one of the first link and the second link,
  • the cylindrical member may form at least a part of one or more of the front leg, the rear leg, the first link, the second link, and the third link.
  • a baby carriage comprises: A pair of front legs and a pair of rear legs; A pair of armrests rotatably connected to the front legs and the rear legs; A pair of first links rotatably connected to the armrest; A pair of second links rotatably connected to the front legs; A pair of third links pivotably connected to the rear legs; A rear connecting member that connects the pair of rear legs; A link connecting material for connecting the pair of second links, The first link is rotatably connected to at least one of the second link and the third link, The second link is rotatably connected to at least one of the first link and the third link, The third link is rotatably connected to at least one of the first link and the second link, The cylindrical member forms at least a part of one or more of the front leg, the rear leg, the first link, the second link, the third link, the rear connection member, and the link connection member. Also good.
  • the first link may form a part of a handle.
  • a baby carriage comprises: Front and rear legs, An armrest pivotally connected to the front leg and the rear leg; A first link pivotably connected to the armrest; A second link rotatably connected to the front leg; A third link pivotably connected to the rear leg; A handle rotatably connected to at least one of the first link, the second link, and the third link; The first link is rotatably connected to at least one of the second link and the third link, The second link is rotatably connected to at least one of the first link and the third link, The third link is rotatably connected to at least one of the first link and the second link, The cylindrical member may form at least a part of one or more of the front leg, the rear leg, the first link, the second link, the third link, and the handle.
  • the present invention it is possible to reduce the weight of the baby carriage through the weight reduction of the cylindrical member by improving the method of fixing the end parts to the cylindrical member.
  • the perspective view for demonstrating the whole structure of the baby carriage in one embodiment of this invention The side view which shows a baby carriage.
  • Sectional drawing which shows a cylindrical member and the edge part component connected to the cylindrical member.
  • the disassembled perspective view which shows a cylindrical member and edge part components.
  • FIGS. 1 to 3 are views for explaining an embodiment of a baby carriage according to the present invention.
  • FIGS. 1 to 3 show the overall configuration of the baby carriage.
  • the baby carriage 10 in the present embodiment has a foldable baby carriage main body 11 having legs 14 and 16. Although illustration is omitted, a cushioning seat material is detachably attached to the baby carriage body 11. The infant sits on this seating material.
  • the baby carriage main body 11 includes a main body frame 12 having a front leg 14 and a rear leg 16, and a handle 48 connected to the main body frame 12 so as to be swingable with respect to the main body frame 12. Wheels 45 are rotatably held at lower ends of the rear legs 14 and 16.
  • the baby carriage 10 is configured to be foldable so as to be widely used (for example, JP2006-1117012A). Further, in the baby carriage 10 of the present embodiment, the operator (guardian) controls the baby carriage 10 by gripping the handle 48 from the back side of the infant by swinging the handle 48 with respect to the main body frame 12. The baby carriage 10 is caused to travel so that the infant faces the front of the traveling direction (see the position of the handle 48 in FIG. 1), and the operator holds the handle 48 from the position on the front leg side facing the infant. The baby carriage 10 can be driven (see the position of the handle 48 in FIG. 2) such that the baby carriage 10 is steered so that the rear leg side of the baby carriage 10 is forward in the traveling direction.
  • the operator controls the baby carriage 10 by gripping the handle 48 from the back side of the infant by swinging the handle 48 with respect to the main body frame 12.
  • the baby carriage 10 is caused to travel so that the infant faces the front of the traveling direction (see the position of the handle 48 in FIG. 1), and the operator holds the handle
  • front refers to the side on which the baby boarded is facing, and the lower left side of the page in FIG. 1 and the left side of the page in FIG. 2 are the front side.
  • the “vertical direction” is a direction orthogonal to the front-rear direction and orthogonal to the ground plane. Therefore, when the ground contact surface is a horizontal plane, the “vertical direction” refers to the vertical direction.
  • the “lateral direction” is the width direction, and is a direction orthogonal to both the “front-rear direction” and the “up-down direction”.
  • the baby carriage main body 11 will be described as an overall configuration of the baby carriage.
  • the baby carriage 10 according to the present embodiment is generally symmetric with respect to a lateral center plane along the front-rear direction.
  • the baby carriage main body 11 includes the main body frame 12 and the handle 48.
  • the main body frame 12 includes a pair of front legs 14 arranged on the left and right sides, a pair of rear legs 16 arranged on the left and right sides, and a pair of armrests 19 arranged on the left and right sides, respectively.
  • a pair of first links 20 arranged on the left and right respectively.
  • the upper end portion of the front leg 14 is connected to the front portion of the armrest 19 arranged on the corresponding side (left side or right side) so as to be rotatable (swingable).
  • the upper end portion of the rear leg 16 is connected to the front portion of the armrest 19 disposed on the corresponding side (left side or right side) so as to be rotatable (swingable).
  • the upper part of the 1st link 20 is connected to the rear part of the armrest 19 arrange
  • the first link 20 includes a main link member 21 and an upper connecting member 22 fixed to the upper end portion of the main link member 21.
  • the main link material 21 is formed in a cylindrical shape using, for example, an aluminum alloy.
  • a part of the upper connecting member 22 is inserted into the main link member 21.
  • the first link 20 is pivotably connected to the rear end portion of the armrest 19 in the upper connecting member 22.
  • the main body frame 12 is connected to the front leg 14 so as to be rotatable (swingable) and to the rear leg 16 so as to be rotatable (swingable).
  • a third link 30 is provided.
  • the first link 20 is connected to at least one of the second link 25 and the third link 30 so as to be rotatable (swingable).
  • the second link 25 is connected to at least one of the first link 20 and the third link 30 so as to be rotatable (swingable).
  • the third link 30 is connected to at least one of the first link 20 and the second link 25 so as to be rotatable (swingable).
  • a frame member 26, and a front connecting member 27 and a rear connecting member 28 fixed to the frame member 26 are provided as members forming the second link 25.
  • the frame material 26 is made of a cylindrical member formed by bending an aluminum alloy pipe, for example.
  • the front connection member 27 and the rear connection member 28 are made of, for example, a resin molded product. A part of the rear connection member 28 is inserted into a frame member 26 made of a cylindrical member.
  • the frame member 26 has a pair of side portions 26a extending in the front-rear direction and a connecting portion 26b that connects the pair of side portions 26a forward, and has a U shape.
  • the front connection member 27 has one end portion rotatably connected to the front leg 14 and the other end portion fixed to the front portion of the side portion 26a.
  • the rear connection member 28 is fixed to the rear end portion of the side portion 26a.
  • the right second link 25 is formed by the side portion 26a of the frame member 26 located on the right side, and the right front connecting member 27 and the rear connecting member 28 fixed to the right side portion 26a.
  • the second link 25 on the left side is formed by the side portion 26a of the frame member 26 located on the left side, and the left front connection member 27 and the rear connection member 28 fixed to the left side portion 26a. Yes.
  • the third link 30 includes a main shaft member 31 rotatably connected to the rear leg 16, an end member 32 fixed to the upper end portion of the main shaft member 31, and have.
  • the main shaft 31 is made of, for example, an aluminum alloy pipe. A part of the end member 32 is inserted into the main shaft member 31.
  • the main shaft 31 is pivotally connected to the rear leg 16 at the lower end portion.
  • first link 20, the second link 25, and the third link 30 are pivotally connected to each other using the same shaft member 34.
  • the shaft member 34 passes through the main link member 21 of the first link 20, the end member 32 of the third link 30, and the rear connection member 28 forming the second link 25.
  • first link 20, the second link 25, and the third link 30 are rotatable with respect to each other about the same axis line defined by the shaft member 34.
  • the main body frame 12 further includes a base frame 41 and an upper frame 42, and a connection frame 43 that connects the base frame 41 and the upper frame 42.
  • a base cloth material (not shown) is stretched between the frame material 26 and the base frame 41.
  • the base cloth material supports a cushioning seat material (not shown) together with the frame material 26, the base frame 41, the upper frame 42 and the connection frame 43.
  • Both the base frame 41 and the upper frame 42 are U-shaped.
  • the base frame 41 is penetrated by the shaft member 34 at both ends thereof.
  • the base frame 41 is rotatable (swingable) with respect to the frame member 26 and other components.
  • the upper frame 42 is connected to the rear end portion of the armrest 19 at both ends thereof so as to be rotatable (swingable).
  • the rotation axis of the upper frame 42 with respect to the armrest 19 is located on the same line as the rotation axis of the first link 20 with respect to the armrest 19.
  • a pair of connecting frames 43 are provided between the base frame 41 and the upper frame 42 so as to be spaced apart from each other in the lateral direction.
  • the connecting frame 43 is rotatably connected to the base frame 41 and the upper frame 42 at both ends thereof.
  • the main body frame 12 includes, as constituent elements extending in the lateral direction, a front connecting member 15 that connects a pair of front legs 14 and a rear connecting member 17 that connects a pair of rear legs 16.
  • the front connecting member 15 functions as a footrest.
  • a link connecting member 29 is provided between the pair of rear connecting members 28.
  • the front connecting member 15, the rear connecting member 17, and the link connecting member 29 can suppress the lateral deformation of the baby carriage 10.
  • a flexible guard member 38 is detachably provided between the pair of armrests 19.
  • a handle 48 is swingably connected to the main body frame 12 having the above configuration.
  • the handle 48 includes a pair of shaft portions 48a that extend substantially parallel to each other, and an intermediate portion 48b that connects the pair of shaft portions 48a.
  • the handle 48 has a substantially U-shape as a whole.
  • the handle 48 is connected to the main body frame 12 at both end portions of the U shape so as to be rotatable (swingable).
  • the handle 48 is pivotally connected to the main body frame 12 using the shaft member 34. Therefore, the first link 20, the second link 25, the third link 30, the base frame 41, and the handle 48 are rotatable with respect to each other about the same axis line defined by the shaft member 34. .
  • the handle 48 has a first position (back pressing position) inclined rearward from the vertical axis in a side view and a second position (facing pressing position) inclined forward from the vertical axis. It can swing between.
  • first position back pressing position
  • second position facing pressing position
  • FIG. 1 the handle 48 is disposed in the first position.
  • FIG. 2 the handle 48 is located at the second position.
  • the baby carriage 10 having the above configuration can be folded by relatively rotating each component member. Specifically, the third link 30 is rotated clockwise in FIG. 2 with respect to the rear leg 16 by once pulling the handle 48 disposed at the first position rearward and upward and then pressing downward. With this operation, the armrest 19 and the second link 25 rotate in the clockwise direction in FIG. 2 with respect to the first link 20. By such an operation, the handle 48 and the front leg 14 are arranged substantially parallel in a side view, and the arrangement position of the handle 48 is lowered. As described above, the baby carriage 10 can be folded as shown in FIG. In the folded state of FIG. 3, the dimensions of the baby carriage 10 along the front-rear direction and the vertical direction can be reduced. On the other hand, in order to unfold the baby carriage 10 from the folded state, a procedure reverse to the folding operation described above may be performed.
  • a cylindrical member typically a pipe made of aluminum alloy having a high specific strength
  • the cylindrical member is suitable for a baby carriage in that both weight reduction and high rigidity can be realized.
  • end parts are fixed to the end of the cylindrical member.
  • the end part is usually made of a resin molded product and can be easily given a desired shape.
  • the end part has a predetermined shape instead of a cylindrical member having a limit on workability, thereby forming a connection portion with another component.
  • an edge part part improves the safety
  • the main link member 21 forming the first link 20 may correspond to a cylindrical member, and the upper connecting member 22 may correspond to an end part.
  • the frame member 26 forming the second link 25 may correspond to a cylindrical member, and the rear connecting member 28 may correspond to an end part.
  • the main shaft 31 of the third link 30 may correspond to a cylindrical member, and the end member 32 may correspond to an end part.
  • the cylindrical member used as a constituent element of the baby carriage is reduced in weight, the carryability and maneuverability of the baby carriage are improved.
  • the tubular member may be damaged during use of the baby carriage.
  • the thickness of the cylindrical member was reduced, and when the material of the cylindrical member was changed to a low-strength lightweight material, the end of the cylindrical member was cracked. It was confirmed that the cylindrical member was damaged.
  • the baby carriage 10 according to the present embodiment is devised to effectively prevent the occurrence of cracks at the end of the cylindrical member, as will be described next. That is, in the baby carriage 10 according to the present embodiment, the tubular member 50 is used as a member that forms at least a part of any one or more of the above-described components, and a method for fixing the end product 70 to the tubular member 50 is used. It has been devised. Specifically, the front leg 14, the rear leg 16, the rear connecting member 17, the main link member 21 forming the first link 20, the frame member 26 forming the second link 25, the link connecting member 29, and the third link of the baby carriage 10 described above. End product 70 for cylindrical member 50 used as a member constituting at least a part of any one or more of main shaft member 31, base frame 41, upper frame 42, connecting frame 43, and handle 48 forming link 30. The fixing method is devised.
  • FIGS. 4 and 5 a method for fixing the end part 70 to the tubular member 50 will be described mainly with reference to FIGS. 4 and 5.
  • the cylindrical member 50 and the end part 70 shown in FIGS. 4 and 5 are combined to form the front leg 14 shown in FIGS.
  • the front leg 14 is connected to the armrest 19 at the end part 70, and a caster for holding the wheel 45 is attached to the lower end of the tubular member 50.
  • the end part 70 is fixed to one open end of the tubular member 50.
  • the end part 70 includes a first member (main member) 71 and a second member (separate member, auxiliary member) 72 formed as a separate body from the first member 71. Have. That is, the end part 70 is formed by two members.
  • the first member 71 has a base portion 74 and an inner support portion 75 formed integrally with the base portion 74.
  • the base 74 is a part connected to the armrest 19.
  • the inward support portion 75 is formed in a cylindrical shape or a column shape, and extends from the base portion 74.
  • the inward support portion 75 is inserted into the tubular member 50 from one opening of the tubular member 50.
  • the inner support portion 75 is formed in a cylindrical shape.
  • the outer peripheral surface of the cylinder forming the inner support portion 75 is in the thickness direction of the cylindrical member 50 in a portion 50a1 (see FIG. 4) adjacent to the end surface 50c of the cylindrical member 50 of the inner surface 50a of the cylindrical member 50.
  • An inward facing surface 75a that faces in a circumferential region is formed from the inner side at dt.
  • the second member 72 includes an outer support portion 76 and a flange portion 77 formed integrally with the outer support portion 76.
  • the outer support portion 76 is formed in a cylindrical shape, and one end portion of the cylindrical member 50 is inserted into the outer support portion 76.
  • the outer support portion 76 is formed in a cylindrical shape corresponding to the cylindrical shape of the cylindrical member 50.
  • the inner peripheral surface of the cylinder forming the outer support portion 76 is in the thickness direction of the cylindrical member 50 in a portion 50b1 (see FIG. 4) adjacent to the end surface 50c of the cylindrical member 50 of the outer surface of the cylindrical member 50.
  • An outward facing surface 76a that faces in a circumferential region is formed from the outside at dt.
  • the flange portion 77 extends inward in the thickness direction dt of the tubular member 50 from the end portion of the outer support portion 76.
  • the flange portion 77 faces the end surface 50 c of the cylindrical member 50 from the outside in the axial direction dl of the cylindrical member 50.
  • the flange part 77 is formed in the circumferential shape.
  • the inner support portion 75 of the first member 71 extends through the second member 72 and into the tubular member 50.
  • the flange portion 77 is sandwiched between the base portion 74 of the first member 71 and the end surface 50 c of the cylindrical member 50.
  • the axial direction dl of the tubular member 50 is a direction connecting a pair of openings of the tubular member 50 (see FIG. 5).
  • the thickness direction dt of the tubular member 50 is a direction orthogonal to the axial direction dl. In the cylindrical tubular member 50 shown in FIG. 5, it coincides with the direction extending in the radial direction from the center of the tubular member 50 in the cross section orthogonal to the axial direction dl.
  • a pair of through holes 75 b are formed in the inner support portion 75 of the end part 70.
  • the cylindrical member 50 is also formed with a pair of through holes 50d.
  • the pair of through holes 75b of the end part 70 and the pair of through holes 50d of the cylindrical member 50 are aligned in a straight line.
  • a fixing tool 78 made of a pin, a rivet or the like passes through the through holes 75 b and 50 d and is fixed to the cylindrical member 50.
  • the end part 70 is surrounded by the inner support portion 75 having the inner facing surface 75a facing the inner surface 50a of the cylindrical member 50 in the circumferential region, and the outer surface 50b of the cylindrical member 50. And an outer support portion 76 having an outer facing surface 76a facing each other in the shape region.
  • the thickness of the tubular member 50 can be reduced.
  • the thinned tubular member 50 can realize the weight reduction of the baby carriage 10 and improve the handleability of the baby carriage 10.
  • the baby carriage 10 can be reduced in weight by forming the cylindrical member 50 using a light material.
  • a cylindrical member made of carbon fiber reinforced plastic CFRP: Carbon Fiber Reinforced Plastics
  • CFRP Carbon Fiber Reinforced Plastics
  • the cylindrical member made of carbon fiber reinforced plastic is not only lightweight but also has excellent flexibility. For this reason, by adopting the fixing method of the end part 70 described above to the cylindrical member 50 made of carbon fiber reinforced plastic, the vibration absorbing performance of the baby carriage 10 is further improved while reducing the weight of the baby carriage 10. Can be made.
  • the vibration absorption performance can be improved by reducing the weight of the baby carriage 10 itself. Therefore, according to the combination of the cylindrical member 50 made of lightweight carbon fiber reinforced plastic and the fixing method of the end part 70 described above. It becomes possible to synergistically improve the vibration absorption performance of the baby carriage 10 in terms of both weight reduction and flexibility of the constituent elements.
  • the baby carriage 10 includes the tubular member 50 and the end part 70 fixed to at least one open end of the tubular member 50.
  • the end part 70 includes an inner support portion 75 having an inner facing surface 75a facing the inner surface of the cylindrical member 50 in a circumferential region, and an outer portion facing the outer surface of the cylindrical member 50 in the circumferential region.
  • an outer support portion 76 having an opposite surface 76a.
  • the end component 70 having the inner support portion 75 and the outer support portion 76 is not limited to the examples shown in FIGS. 4 and 5 and is applied to the baby carriage 10 in various forms. be able to.
  • the end part 70 shown in FIGS. 4 and 5 includes a first member 71 including a base 74 and an inner support 75, a second member 72 including an outer support 76 and a flange 77, and
  • the present invention is not limited to this example.
  • the end part 70 includes a first member 81 including a base portion 74 and an outer support portion 76, an inner support portion 75, and a flange portion.
  • a second member 82 including 83 In the example shown in FIG.
  • the base 74 and the outer support 76 of the first member 81 are integrally formed, and the outer support 76 forms an outer facing surface 76a.
  • the inner support portion 75 and the flange portion 83 of the second member 82 are integrally formed, and the inner support portion 75 forms an inner facing surface 75a.
  • the inner support portion 75 of the second member 82 is formed in a cylindrical shape or a cylindrical shape.
  • the flange portion 83 of the second member 82 extends outward from the end portion of the inward support portion 75 in the thickness direction of the tubular member 50.
  • the flange portion 83 is disposed so as to face the end surface 50 c of the cylindrical member 50.
  • the outer support portion 76 of the first member 81 is formed in a cylindrical shape.
  • the 2nd member 82 is arrange
  • the base portion 74 includes a bottom surface portion 74 b that holds the flange portion 83 of the second member 82 between the end surface 50 c of the cylindrical member 50.
  • the outer support portion 76 is shorter than the inner support portion 75.
  • the first member 81 is fixed to the tubular member 50 via the fixture 78, and the first member 81 holds the second member 82 between the first member 81 and the tubular member 50.
  • the end part 70 shown in FIGS. 4 to 6 has the first member 71 and the second member 72 formed separately, but is not limited to this example, and is shown in FIG. 7 or FIG. As such, the end piece 70 may be formed as a single member. In the end part 70 shown in FIG. 7 or 8, both the inner support part 75 and the outer support part 76 protrude from the base part 74. The end surface 50c of the cylindrical member 50 comes to face the inter-support portion surface 74a formed between the inner support portion 75 and the outer support portion 76. In the example shown in FIG. 7, the inner support portion 75 is longer than the outer support portion 76, but the inner support portion 75 is supported outward as in the example shown in FIG. It may be shorter than the portion 76. Even with such an end part 70, it is possible to achieve the same effect as the above-described embodiment, that is, to effectively prevent the tubular member 50 from cracking.
  • the cylindrical member 50 may be connected to other components via a fixture 79 for fixing the end part 70 to the cylindrical member 50. That is, the cylindrical member 50 shown in FIG. 9 is connected to other components of the baby carriage 10 at a portion where the end part 70 is provided.
  • the cylindrical member 50 forms the shaft portion 48a of the handle 48 shown in FIGS. 1 to 3, and the end part 70 has an opening at the end of the cylindrical member 50. Configure the cap material to close.
  • the end part 70 shown in FIG. 9 also has the same effect as that of the above-described embodiment, that is, it is possible to effectively prevent the tubular member 50 from cracking.
  • a baby carriage may be configured so that it can be further folded and further downsized in the width direction after being folded down in the front-rear direction.
  • members extending in the width direction of the baby carriage 10, that is, the intermediate portion 48b of the handle 48, the front connecting member 15, the rear connecting member 17, the link connecting member 29, the base frame 41, the upper frame 42, etc. are hinged (bent These members may be bent around the hinge after being folded so as to be reduced in size in the front-rear direction as described above.
  • the handle 48 is configured to be swingable between a back pushing position (rear position) and a facing pushing position (front position). That is, in the above-described embodiment, the example in which the handle 48 is provided separately from the first link 20 and the handle 48 is configured to be swingable with respect to the main body frame 12 of the baby carriage main body 11 is shown.
  • the baby carriage 10 may be configured such that the handle 48 is fixed at the rear position and cannot be swung from the back pushing position.
  • a pair of first links 20 is configured by a portion corresponding to the lower end portion of the shaft portion 48 a of the handle 48. In other words, the first link 20 further extends beyond the connection point with the armrest 19 and constitutes a part of the handle 48.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Prostheses (AREA)
PCT/JP2015/074992 2014-09-22 2015-09-02 乳母車および乳母車に用いられる筒状部材 WO2016047407A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580050082.3A CN106715237B (zh) 2014-09-22 2015-09-02 婴儿车
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TW201615461A (zh) 2016-05-01
CN106715237A (zh) 2017-05-24
KR20170063579A (ko) 2017-06-08
CN106715237B (zh) 2019-10-01
TWI656999B (zh) 2019-04-21
KR102384481B1 (ko) 2022-04-08
JP2016064686A (ja) 2016-04-28

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