GB2398109A - Stroller brake arrangement - Google Patents

Stroller brake arrangement Download PDF

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Publication number
GB2398109A
GB2398109A GB0329662A GB0329662A GB2398109A GB 2398109 A GB2398109 A GB 2398109A GB 0329662 A GB0329662 A GB 0329662A GB 0329662 A GB0329662 A GB 0329662A GB 2398109 A GB2398109 A GB 2398109A
Authority
GB
United Kingdom
Prior art keywords
pair
stroller
rear wheel
operating bar
push rod
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0329662A
Other versions
GB0329662D0 (en
Inventor
Tokihiko Ikuno
Toshiro Yoshie
Yutaka Ukitsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Combi Corp
Original Assignee
Combi Corp
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 Combi Corp filed Critical Combi Corp
Publication of GB0329662D0 publication Critical patent/GB0329662D0/en
Publication of GB2398109A publication Critical patent/GB2398109A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B62B9/08—Braking mechanisms; Locking devices against movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • 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
    • B62B9/08—Braking mechanisms; Locking devices against movement
    • B62B9/082—Braking mechanisms; Locking devices against movement foot operated
    • 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
    • B62B9/08—Braking mechanisms; Locking devices against movement
    • B62B9/087—Braking mechanisms; Locking devices against movement by locking in a braking position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/0433—Braking mechanisms; Locking devices against movement foot operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/0457—Braking mechanisms; Locking devices against movement by locking in a braking position
    • B62B5/0461—Braking mechanisms; Locking devices against movement by locking in a braking position with positive engagement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

A stroller 10 includes a hand push rod 15, a pair of rear legs 14 disposed on the hand push rod 15, and a rear wheel 13 rotatably held on a lower end of each rear leg 14 through an axle holding portion 40. A break mechanism 41 is rotatably attached to each axle holding portion 40. The respective brake mechanisms 41 are connected to each other by an operating bar 42. By pressing the operating bar 42 to rotate each break mechanism 41, an engagement pin 46 of the break mechanism is inserted to a locking groove 48 of the rear wheel 13, so that each rear wheel 13 is locked.

Description

23981 09 Stroller
Field of the Invention
The present invention relates to a stroller having a pair of rear wheels. More particularly, it pertains to a stroller in which the rear wheels are locked through one-stroke operation.
Background Art
A conventionally known stroller includes a hand push rod, a pair of rear legs connected to the hand push rod, and a pair of rear wheels rotatably held on the respective rear legs. Each rear wheel of the stroller has a break mechanism so as to ensure the safety of the stroller.
As described above, the rear wheels of the conventional stroller have break mechanisms which are respectively disposed thereon. When locking or releasing the rear wheels, the user actuates separately the brake mechanisms disposed on each rear wheel to lock or release the same.
However, it is troublesome to actuate the break mechanisms for each rear wheel to lock or release the same.
Disclosure of the Invention
The present invention is made in view of the above disadvantage, and an object thereof is to provide a stroller in which a pair of rear wheels can be locked or released through one-stroke operation.
A stroller according to the present invention comprises: a hand push rod; a pair of rear legs connected to the hand push rod; a rear wheel with a locking groove, held on each rear leg through an axle holding portion; and a brake mechanism which is rotatably mounted on each axle holding portion, and is engageable with the corresponding locking groove of the rear wheel; wherein the brake mechanisms of the pair of rear wheels are connected to each other by an operating bar, and the brake mechanisms of the pair of rear wheels are actuated through one-stroke operation of the operating bar.
In the stroller, each rear wheel may have a plurality of locking grooves, and these locking grooves may be circumferentially disposed on the rear wheel.
In the stroller, each rear wheel may have a plurality of ribs which form the locking grooves therebetween, and may extend in radial directions.
In the stroller, the brake mechanism may have an engagement pin which is engaged in the corresponding locking groove, and an outer end of each rib may have a curved surface tapering at a tip thereof to guide the engagement pin into the locking groove.
In the stroller, the stroller can be folded in three; the hand push rod and the operating bar respectively may have a pair of hinges, and one hinge of the hand push rod and one hinge of the operating bar, and the other hinge of the hand push rod and the other hinge of the operating bar may be located in the same planes, respectively.
In the stroller, each rear wheel may be of a dual wheel type with a pair of wheels, and the axle holding portion may be positioned between the pair of wheels of the rear wheel.
In the stroller, the operating bar may be positioned forward the pair of rear wheels.
In the stroller, the operating bar may have a pair of folded portions, and a center portion of the operating bar may be directed rearward by the pair of folded portions.
Brief Description of the Drawings
Fig. 1 is a perspective view showing an embodiment of a stroller according to the present invention; Fig. 2 is a view showing a stroller in a folded state; Fig. 3 is a perspective view showing a rear leg part; and Fig. 4 is a view showing a break mechanism in detail.
Detailed Description of the Invention
An embodiment of the present invention is described below with reference to the drawings.
Figs. 1 to 4 respectively show an embodiment of a stroller according to the present invention.
As shown in Fig. 1, a stroller 10 includes a pair of right and left front legs 12 each having a front wheel 11 of a dual-wheel type having a pair of wheels lla, a pair of right and left rear legs 14 each having a rear wheel 13 of a dual-wheel type having a pair of wheels 13a, a hand push rod 15 which is folded in substantially an inverted U-shape, and a pair of right and left arm rests 16. Each front leg 12 is positioned between the pair of wheels lla, lla, while each rear leg 14 is positioned between the pair of wheels 13a, 13a.
The hand push rod 15 has a pair of right and left pipes 17. One end of each arm rest 16 is pivotally attached to the corresponding pipe 17 near a lower end thereof. The other end of each arm rest 16 is pivotally attached to a top end of each front leg 12.
Top ends of the right and left rear legs 14 are pivotally attached to center parts of the respective arm rests 16. One end of a bracket 18, which is bent in a boomerang shape, is pivotally attached to a center part of each rear leg 14. An end of each pipe 17 constituting the hand push rod 15 is pivotally attached to each bracket 18. When the stroller 10 is unfolded, a locking member 19, which is pivotally attached to a lower end portion of the pipe 17 in a slidable manner, is engaged with the other end of the bracket 18, so that the unfolded state of the stroller 10 is maintained.
The right and left front legs 12 are connected to each other by a front connecting bar 21 on which a foot rest 20 is mounted. The right and left rear legs 14 are connected to each other by a rear connecting bar 22. A back part supporting mechanism (not shown) for supporting a back part 32 is disposed on each pipe 17.
Connecting bars (not shown) are provided between one front leg 12 and one rear leg 14, and between the other front leg 12 and the other rear leg 14, respectively. A seat part supporting mechanism for supporting a seat part 30 is disposed on the respective connecting bars.
The seat part 30 and the back part 32 are integrally formed so as to constitute a detachable seat.
The seat part 30 is held by the seat part supporting mechanisms disposed on the connecting bars, and the back part 32 is held by the back part supporting mechanisms.
A guide rail 31 with a pair of hinges 31a is attached to front ends of the pair of arm rests 16. The front connecting bar 21 has a pair of hinges 21a disposed thereon. The rear connecting bar 22 has a pair of hinges 22a. The hand push rod 15 has an operation device 28 disposed on an upper part thereof. A pair of hinges 15a are formed on both sides of the operation device 28.
A waist belt 36 is attached to the seat part 30.
The waist belt 36 is connected to a seat belt 37 extending from the back part 32 by means of a buckle 38.
A frame 35 which supports a hood 34 is swingably mounted on the arm rests 16 on the side of the hand push rod 15. A basket B is provided below the seat part 30.
In the stroller 10 shown in Fig. 1, when the locking member 19 disposed on the lower end of each pipe 17 is engaged with the upper end of each bracket 18, the stroller 10 is thus held in an unflolded state for use.
The engagement of the locking member 19 and the bracket 18 is released by operating the operation device 28 disposed on the hand push rod 15. Then, the arm rests 16 and the connecting bar 21 can be swung upward about pivot points between the arm rests 16 and the connecting bar 21, and the pipes 17, so that the front legs 12 and the rear legs 14 are swung to be substantially parallel with each other. Thus, the stroller 10 can be folded and conveniently carried.
The hand push rod 15, the front connecting bar 21, the rear connecting bar 22, and the guide rail 31 can be further folded respectively by the hinges 15a, 21a, 22a, and 31a in the two same vertical planes. The seat part supporting mechanism is formed by a flexible belt. After the front legs 12, the rear legs 14 are folded in parallel with each other, as described above, the right and left pipes 17 are moved forward. Then, both ends of the respective hand push rod 15, the front connecting bar 21, the rear connecting bar 22, and the guide rail 31 are bent forward to form a square U-shape. Thus, as shown in Fig. 2, the stroller 10 can more compactly be folded.
Referring to Figs. 3 and 4, the break mechanism disposed on each rear wheel 13 is described below.
As shown in Figs. 3 and 4, the rear wheel 13 of a dual-wheel type is rotatable attached to a lower end part of each rear leg 14 through an axle holding portion 40. The axle holding portion 40 is positioned between the pair of wheels 13a, 13a of the rear wheel 13.
The axle holding portion 40 rotatable holds an axle of the rear wheel 13 of a dual-wheel type. Each rear leg 14 is inclined from an upper part of the axle holding portion 40 and upwardly extend.
A plurality of ribs 47 are arranged on the rear wheel 13 of each rear leg 14. The ribs 47 are extended on an inner surface side of the axle holding portion 40 in radial directions with the axle 50 as a center. A plurality of locking grooves 48 are formed between the ribs 47. An engagement pin 46 of a break mechanism 41, which will be described hereinafter, is engaged with the corresponding locking groove 48. The locking grooves 48 are circumferentially disposed on the inner surface of the wheel 13 around the axle 50, i.e., a center. An outer end 47a of each rib 47 has a curved surface 47b tapering at a tip thereof. By sliding the engagement pin 46 on the curved surface 47b of the outer end 47a, the engagement pin 46 is easily inserted to the corresponding locking groove 48 between the ribs 47.
Each break mechanisms 41 is rotatable attached to the axle holding portion 40 which is secured to the lower end part of each rear leg 14. The break mechanism 41 is of substantially a triangular shape, and is rotated with respect to the axle holding portion 40 through the rotation pin 45.
The engagement pin 46 is attached to a lower end part of the break mechanism 41. As described above, the engagement pin 46 is inserted to the corresponding locking groove 48 to lock the rear wheel.
The break mechanisms 41, 41 respectively corresponding to the pair of rear wheels 14 are connected to each other by an operating bar 42 which is positioned forward the pair of rear wheels 14. The operating bar 42 simultaneously actuates the pair of break mechanisms 41, 41 through onestroke operation so as to lock or release the rear wheels 13. The operation bar 42 has a pair of hinges 42a which are bent when the stroller TO is folded in three.
The operating bar 42 has a pair of folded portions 42b which allow a center part 42c of the operating bar 42 to be directed rearward, and to be escaped from the rear wheels 13. One hinge 42a of the operating bar 42 is coplanar with each one hinge 15a, 21a, 22a, and 31a of the respective hand push rod 15, the front connecting bar 21, the rear connecting bar 22, and the guide rail 31. The other hinge 42a of the operating bar 42 is coplanar with each other hinge 15a, 21a, 22a, and 31a of the respective hand push rod 15, the front connecting bar 21, the rear connecting bar 22, and the guide rail 31.
In Figs. 3 and 4, when locking the rear wheels 13, the center part 42c of the operating bar 42 is pressed downward with a foot or the like. Then, each brake mechanism 41 rotatably mounted on each axle holding portion 40 of each rear leg 14 is rotated about the rotation pin 45 in a direction indicated by an arrow L (see, Fig. 4). Then, the engagement pin 46 disposed on the lower end part of each brake mechanism 41 is inserted to the corresponding locking groove 48 arranged on the inner surface of each rear wheel 13, so that the engagement pin 46 is engaged in the locking groove 48.
The outer end 47a of the rib 47 has the curved surface 47b tapering at a tip thereof. Thus, when the engagement pin 46 is not located at an intermediate part of the corresponding locking groove 48, the engagement pin 46 is securely guided to the locking groove 48 by sliding the engagement pin 46 on the curved surface 47b of the outer end 47a.
In this way, simply by pressing the center part 42c of the operating bar 42 with a foot or the like, the locking groove 48 of each rear wheel 13 is engaged with the engagement pin 46 of the corresponding break mechanism 41 so as to lock each rear wheel 13.
When releasing the rear wheels 13 of the respective rear legs 14, the center part 42c of the operating bar 42 is lifted upward, which is contrary to the above case Then, the break mechanism 41 corresponding to each rear leg 14 is rotated in a reverse direction indicated by the arrow L through the rotation pin 45. Thus, the engagement pin 46 of the break mechanism 41 is disengaged from the locking groove 48 of the rear wheel 13. Thus, the rear wheel 13 is completely released in this way.
As described above, according to the embodiment, simply by pressing the operating bar 42 downward, each brake mechanism 41 disposed on each rear leg 14 is rotated to guide the engagement pin 46 of the break mechanism 41 into the locking groove 48 of the rear wheel 13, so that the rear wheel 13 can be locked. Only by lifting the operating bar 42 upward, each break mechanism 41 is reversely rotated to disengage the engagement pin 46 from the locking groove 48, so that the rear wheel 13 can be released.
Effect of Invention As described above, according to the present invention, only by pressing an operation bar downward, a break mechanism disposed on each rear leg is rotated to engage the brake mechanism with a corresponding locking groove of the rear wheel. Further, only by lifting the operating bar upward, the break mechanism is reversely rotated to disengage the brake mechanism from the locking groove. Therefore, the respective rear wheels can be locked or released through one-stroke operation.

Claims (9)

  1. CLAIMS: 1. A stroller comprising: a hand push rod; a pair of rear legs
    connected to the hand push rod; a rear wheel with a locking groove, held on each rear leg through an axle holding portion; and a brake mechanism which is rotatably mounted on each axle holding portion, and is engageable with the corresponding locking groove of the rear wheel; wherein the brake mechanisms of the pair of rear wheels are connected to each other by an operating bar, and the brake mechanisms of the pair of rear wheels are actuated through one-stroke operation of the operating bar.
  2. 2. A stroller according to claim 1, wherein each rear wheel has a plurality of locking grooves, and these locking grooves are circumferentially disposed on the rear wheel.
  3. 3. A stroller according to claim 1, wherein each rear wheel has a plurality of ribs which form the locking grooves therebetween, and extend in radial directions.
  4. 4. A stroller according to claim 3, wherein the brake mechanism has an engagement pin which is engaged in the corresponding locking groove, and an outer end of each rib has a curved surface for guiding the engagement pin into the locking groove.
  5. 5. A stroller according to any preceding claim, wherein the stroller can be folded in three; the hand push rod and the operating bar respectively have a pair of hinges, and one hinge of the hand push rod and one hinge of the operating bar being located in one plane, and the other hinge of the hand push rod and the other hinge of the operating bar being located in another plane.
  6. 6. A stroller according to any preceding claim, wherein each rear wheel comprises a pair of wheels, and the axle holding portion is positioned between the pair of wheels of each rear wheel.
  7. 7. A stroller according to any preceding claim, wherein the operating bar is positioned forward of the rear wheels.
  8. 8. A stroller according to any preceding claim, wherein the operating bar has a pair of folded portions, and a center portion of the operating bar is directed rearwardly by the pair of folded portions.
  9. 9. A stroller substantially as herein described and as illustrated in the accompanying drawings.
GB0329662A 2002-12-25 2003-12-22 Stroller brake arrangement Withdrawn GB2398109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002375212A JP2004203243A (en) 2002-12-25 2002-12-25 Stroller

Publications (2)

Publication Number Publication Date
GB0329662D0 GB0329662D0 (en) 2004-01-28
GB2398109A true GB2398109A (en) 2004-08-11

Family

ID=31185279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0329662A Withdrawn GB2398109A (en) 2002-12-25 2003-12-22 Stroller brake arrangement

Country Status (3)

Country Link
JP (1) JP2004203243A (en)
KR (1) KR20040058000A (en)
GB (1) GB2398109A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5432787B2 (en) * 2010-03-23 2014-03-05 アップリカ・チルドレンズプロダクツ株式会社 Folding baby carriage
JP5677762B2 (en) * 2010-04-07 2015-02-25 ピジョン株式会社 stroller
CN103079929B (en) * 2010-05-28 2016-02-10 贝比赞公司 The brake system of go-cart and go-cart
KR101402348B1 (en) * 2012-06-25 2014-06-02 이기범 folding type cart
TWI594910B (en) * 2017-03-23 2017-08-11 Shui-Sheng Bao Wheel lock structure prevents accidental slipping of the cart
CN109171267A (en) * 2018-09-19 2019-01-11 国网山东省电力公司烟台供电公司 Power marketing field portable operates equipment
CN111289415A (en) * 2020-03-19 2020-06-16 武汉理工大学 Portable haze detection device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450925A1 (en) * 1990-04-05 1991-10-09 Nichols, Joanna Ariadne An interlocking brake construction for wheels of a collapsible umbrella stroller
GB2243198A (en) * 1989-12-23 1991-10-23 Nichols Joanna Ariadne Wheel stopping device for baby carriages
GB2256685A (en) * 1992-02-21 1992-12-16 Albion A braking mechanism in a collapsible wheeled structure
GB2277565A (en) * 1993-04-27 1994-11-02 Taiwan General Baby Carts Ente Brake link mechanism for baby carts
GB2297133A (en) * 1995-01-19 1996-07-24 Chen Huang Li Chu Brake device for a baby stroller
GB2349186A (en) * 1999-04-21 2000-10-25 Link Treasure Limited Brake device for a collapsible stroller
GB2355773A (en) * 1999-10-29 2001-05-02 Combi A collapsible baby carriage with linked braking device
US6308805B1 (en) * 2000-06-20 2001-10-30 Red Lan Stroller having a brake device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243198A (en) * 1989-12-23 1991-10-23 Nichols Joanna Ariadne Wheel stopping device for baby carriages
EP0450925A1 (en) * 1990-04-05 1991-10-09 Nichols, Joanna Ariadne An interlocking brake construction for wheels of a collapsible umbrella stroller
GB2256685A (en) * 1992-02-21 1992-12-16 Albion A braking mechanism in a collapsible wheeled structure
GB2277565A (en) * 1993-04-27 1994-11-02 Taiwan General Baby Carts Ente Brake link mechanism for baby carts
GB2297133A (en) * 1995-01-19 1996-07-24 Chen Huang Li Chu Brake device for a baby stroller
GB2349186A (en) * 1999-04-21 2000-10-25 Link Treasure Limited Brake device for a collapsible stroller
GB2355773A (en) * 1999-10-29 2001-05-02 Combi A collapsible baby carriage with linked braking device
US6308805B1 (en) * 2000-06-20 2001-10-30 Red Lan Stroller having a brake device

Also Published As

Publication number Publication date
GB0329662D0 (en) 2004-01-28
JP2004203243A (en) 2004-07-22
KR20040058000A (en) 2004-07-02

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