US20020014752A1 - Locking device with safety arrangement for collapsable stroller - Google Patents
Locking device with safety arrangement for collapsable stroller Download PDFInfo
- Publication number
- US20020014752A1 US20020014752A1 US09/805,052 US80505201A US2002014752A1 US 20020014752 A1 US20020014752 A1 US 20020014752A1 US 80505201 A US80505201 A US 80505201A US 2002014752 A1 US2002014752 A1 US 2002014752A1
- Authority
- US
- United States
- Prior art keywords
- locking device
- stroller
- push button
- housing
- handle
- 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.)
- Granted
Links
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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
- 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
- B62B9/20—Handle bars; Handles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/20—Catches; Locking or releasing an articulation
- B62B2205/22—Catches; Locking or releasing an articulation remotely controlled, e.g. from the handlebar
Definitions
- the present invention relates to strollers and more particularly to a locking device with an additional safety mechanism for collapsable stroller.
- Collapsable strollers has been used around the world.
- a locking device is mounted on such a collapsable stroller.
- first rotate the locking device to move connecting rods up, thereby disengaging sliding blocks from catches.
- user may collapse the stroller in this unlocked position. But this is unsatisfactory for the purpose for which the invention is concerned for the following reasons:
- the locking device is unsightly because it is projected from the stroller.
- Connecting rod is movable. Also, a gap may exist between connecting rod and stroller frame while collapsing the stroller. Hence, it is possible to hurt user if hands are accidentally put into the gap.
- the stroller further comprises a safety mechanism at the upper side of one driving member.
- Safety mechanism comprises a pawl-like member blocks the push button in the locked state of the stroller, thus preventing latches from accidentally being unlocked.
- FIG. 1 is a schematic side view of the unfolded frame of a collapsable stroller incorporating the locking device with safety mechanism according to the invention
- FIG. 2 schematically shows the components of locking device and safety mechanism of the stroller shown in FIG. 1;
- FIG. 3 is a schematic plan view of the handlebar portion including locking device and safety mechanism of FIG. 2;
- FIG. 4 schematically shows the unlocking operation of the locking device and safety mechanism of FIG. 2;
- FIG. 5 is a schematic side view of the collapsed stroller frame shown in FIG. 1.
- a collapsable stroller in accordance with the invention comprising a frame 1 and a plurality of sets of wheels 3 rotatably mounted under the frame 1 .
- the frame comprises a handle 10 , front legs 11 , rear legs 12 , seat tubes 13 , latches 14 , and a locking device 20 .
- Handle 14 comprises a gripping portion 101 and two arms 102 .
- Latch 14 comprises a latch pin 141 and a helical spring 142 .
- User may manipulate locking device 20 to control the locking or unlocking of latch pin 141 for unfolding the stroller in a use position as shown in FIG. 1 or folding the stroller in a storage position as shown in FIG. 5.
- locking device 20 located at the gripping portion 101 of the handle 10 comprises a housing 201 , a pair of opposite driving members 202 , a push button 203 , a pair of steel cables 204 , and a safety mechanism 205 .
- Housing 201 comprises an upper portion 2011 , a lower portion 2012 , and a space 2013 enclosed by portions 2011 and 2012 .
- Each driving member 202 is pivotably connected to gripping portion 101 of handle 10 .
- Driving member 202 comprises a first cam 2021 coupled to one end of steel cable 204 and a second cam 2022 .
- Push button 203 comprises a projected activation portion 2031 and an engagement portion 2032 .
- Push button 203 is located at the underside of driving members 202 and slidable in housing 201 .
- press activation portion 2031 (and thus engagement portion 2032 ) of push button 203 to cause second cams 2022 of driving members 202 to pivot in opposite directions.
- first cams 2021 are pivoted toward each other to substantially overlay.
- two steel cables 204 are pulled toward each other (i.e., toward the center of gripping portion 101 .
- latch pins 141 coupled to the other ends of steel cables 204 are activated for unlocking the latches 14 in response to the pulling movement of steel cables 204 .
- user may fold the stroller.
- springs 142 in the arms 102 are expanded to return to original unbiased state for causing push button 203 and driving members 202 to return to their positions in the locked state of stroller.
- Safety mechanism 205 is slidably mounted on the housing 201 for preventing latch pins 141 from accidentally unlocked.
- Safety mechanism 205 comprises a torsional spring 5 in the space 2013 , a pawl-like member 2051 , and a projected activation portion 2052 .
- the push button 203 including a blocking side 2033 and a releasing groove 2034 .
- pawl-like member 2051 of safety mechanism 205 blocks the blocking side 2033 of the push button 203 , thus inhibiting the push button 203 from moving toward the housing 201 .
- the torsional spring 5 maintains the safety mechanism 205 at this position.
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)
- Handcart (AREA)
Abstract
Description
- 1. Field of Invention
- The present invention relates to strollers and more particularly to a locking device with an additional safety mechanism for collapsable stroller.
- 2. Related Art
- Collapsable strollers has been used around the world. Typically, a locking device is mounted on such a collapsable stroller. In collapsing the stroller, first rotate the locking device to move connecting rods up, thereby disengaging sliding blocks from catches. Then, user may collapse the stroller in this unlocked position. But this is unsatisfactory for the purpose for which the invention is concerned for the following reasons:
- 1. The locking device is unsightly because it is projected from the stroller.
- 2. The collapsing operation is not simplified since, as stated above, the locking device is required to rotate to move connecting rods up for disengaging sliding blocks from catches before user bends his/her back to collapse the stroller.
- 3. Connecting rod is movable. Also, a gap may exist between connecting rod and stroller frame while collapsing the stroller. Hence, it is possible to hurt user if hands are accidentally put into the gap.
- Thus, it is desirable to provide an improved locking device with an additional safety arrangement for collapsable stroller in order to overcome the above drawbacks of prior art.
- It is therefore an object of the present invention to provide a locking device for collapsable stroller whereby press pushing portion and thus engagement portion of push button pivot two driving members in two different opposite directions such that two coupled steel cables are pulled toward the center of gripping portion, thereby unlocking the latches so as to unfold the stroller thereafter.
- It is another object of the present invention to provide a locking device for collapsable stroller. The stroller further comprises a safety mechanism at the upper side of one driving member. Safety mechanism comprises a pawl-like member blocks the push button in the locked state of the stroller, thus preventing latches from accidentally being unlocked.
- Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
- The present invention will become fully understood from the detailed description given hereinbelow illustration only, and thus are not limitative of the present invention, and wherein:
- FIG. 1 is a schematic side view of the unfolded frame of a collapsable stroller incorporating the locking device with safety mechanism according to the invention;
- FIG. 2 schematically shows the components of locking device and safety mechanism of the stroller shown in FIG. 1;
- FIG. 3 is a schematic plan view of the handlebar portion including locking device and safety mechanism of FIG. 2;
- FIG. 4 schematically shows the unlocking operation of the locking device and safety mechanism of FIG. 2; and
- FIG. 5 is a schematic side view of the collapsed stroller frame shown in FIG. 1.
- Referring to the drawings and particularly FIG. 1, there is shown a collapsable stroller in accordance with the invention comprising a
frame 1 and a plurality of sets ofwheels 3 rotatably mounted under theframe 1. The frame comprises ahandle 10,front legs 11,rear legs 12,seat tubes 13,latches 14, and alocking device 20.Handle 14 comprises agripping portion 101 and twoarms 102.Latch 14 comprises alatch pin 141 and ahelical spring 142. User may manipulatelocking device 20 to control the locking or unlocking oflatch pin 141 for unfolding the stroller in a use position as shown in FIG. 1 or folding the stroller in a storage position as shown in FIG. 5. - Referring to FIGS. 2 and 3 specifically,
locking device 20 located at thegripping portion 101 of thehandle 10 comprises ahousing 201, a pair ofopposite driving members 202, apush button 203, a pair ofsteel cables 204, and asafety mechanism 205.Housing 201 comprises anupper portion 2011, alower portion 2012, and aspace 2013 enclosed byportions driving member 202 is pivotably connected to grippingportion 101 ofhandle 10.Driving member 202 comprises afirst cam 2021 coupled to one end ofsteel cable 204 and asecond cam 2022.Push button 203 comprises a projectedactivation portion 2031 and anengagement portion 2032.Push button 203 is located at the underside of drivingmembers 202 and slidable inhousing 201. - Referring to FIGS. 3 and 4 specifically, the operation of
locking device 20 will now be described. As shown, press activation portion 2031 (and thus engagement portion 2032) ofpush button 203 to causesecond cams 2022 of drivingmembers 202 to pivot in opposite directions. Thusfirst cams 2021 are pivoted toward each other to substantially overlay. Hence, twosteel cables 204 are pulled toward each other (i.e., toward the center of grippingportion 101. At the same time,latch pins 141 coupled to the other ends ofsteel cables 204 are activated for unlocking thelatches 14 in response to the pulling movement ofsteel cables 204. Thus, user may fold the stroller. In unfolding the stroller,springs 142 in thearms 102 are expanded to return to original unbiased state for causingpush button 203 and drivingmembers 202 to return to their positions in the locked state of stroller. - Referring to FIGS. 2 and 4 specifically, an
additional safety mechanism 205 is slidably mounted on thehousing 201 for preventinglatch pins 141 from accidentally unlocked.Safety mechanism 205 comprises atorsional spring 5 in thespace 2013, a pawl-like member 2051, and a projectedactivation portion 2052. And thepush button 203 including a blockingside 2033 and a releasinggroove 2034. In the locked position, pawl-like member 2051 ofsafety mechanism 205 blocks theblocking side 2033 of thepush button 203, thus inhibiting thepush button 203 from moving toward thehousing 201. And thetorsional spring 5 maintains thesafety mechanism 205 at this position. In collapsing the stroller,push activation portion 2052 to letsafety mechanism 205 pivot so that pawl-like member 2051 leaves the blockingside 2033 for position corresponding the releasinggroove 2034. Then pushbutton 203 toward inside thehousing 201, and user is allowed to fold the stroller. In view of above, the safety of manipulating stroller is greatly enhanced. - The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN00228933U | 2000-07-26 | ||
TW00228933.4 | 2000-07-26 | ||
CN00228933U CN2440403Y (en) | 2000-07-26 | 2000-07-26 | Collapsing structure for pushchair by one hand |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020014752A1 true US20020014752A1 (en) | 2002-02-07 |
US6443479B2 US6443479B2 (en) | 2002-09-03 |
Family
ID=4620679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/805,052 Expired - Lifetime US6443479B2 (en) | 2000-07-26 | 2001-03-14 | Locking device with safety arrangement for collapsable stroller |
Country Status (3)
Country | Link |
---|---|
US (1) | US6443479B2 (en) |
CN (1) | CN2440403Y (en) |
DE (1) | DE20110226U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6416076B1 (en) * | 2000-08-17 | 2002-07-09 | Link Treasure Limited | Collapsible stroller |
GB2426743A (en) * | 2005-06-01 | 2006-12-06 | Lan Red | Foldable stroller |
US10150496B2 (en) * | 2014-09-01 | 2018-12-11 | Stroller Tech Limited | Handle assembly for a folding perambulator and a folding perambulator incorporating the same |
CN111483502A (en) * | 2020-06-15 | 2020-08-04 | 苏州功百精密机械科技有限公司 | Transport shallow |
Families Citing this family (35)
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JP4416881B2 (en) * | 1999-10-12 | 2010-02-17 | コンビ株式会社 | Stroller folding operation device |
CN2428383Y (en) * | 2000-01-03 | 2001-05-02 | 好孩子集团公司 | Bassinet |
JP4937473B2 (en) * | 2001-08-09 | 2012-05-23 | コンビ株式会社 | Stroller folding operation device |
JP2003054418A (en) * | 2001-08-17 | 2003-02-26 | Combi Corp | Remote control device and stroller provided with the same |
US6921102B2 (en) * | 2001-10-18 | 2005-07-26 | Ben Ming Hsia | One-hand operational control device of foldable stroller |
TW563654U (en) * | 2002-03-07 | 2003-11-21 | Link Treasure Ltd | Two-way safety lock structure for single-hand trolley collapsing |
US6715828B1 (en) * | 2002-10-07 | 2004-04-06 | Kenny Cheng | Infant carrier |
US6877760B2 (en) * | 2003-06-09 | 2005-04-12 | Mission Hills Investment Corporation | Foldable stroller |
US7021650B2 (en) * | 2003-08-07 | 2006-04-04 | Wonderland Nurserygoods Co., Ltd. | Collapsing device for carrier |
TWM257306U (en) * | 2003-11-12 | 2005-02-21 | Link Treasure Ltd | Framework structure for baby carriage |
US7686322B2 (en) * | 2004-04-30 | 2010-03-30 | Chicco Usa, Inc. | Foldable stroller with memory recline |
JP2005329844A (en) * | 2004-05-20 | 2005-12-02 | Aprica Kassai Inc | Article storage basket, and folding stroller having the same |
US7281732B2 (en) * | 2004-12-15 | 2007-10-16 | Evenflo Company, Inc. | Stroller with tray fold and fold latch mechanisms |
TWM276508U (en) * | 2005-04-21 | 2005-10-01 | Link Treasure Ltd | Collapsible mechanism of umbrella vehicle frame for infant |
ES1062849Y (en) * | 2006-05-12 | 2006-11-01 | Jane Sa | DEVICE FOR THE OPERATION OF CABLE MECHANISMS |
US7651115B1 (en) * | 2006-08-04 | 2010-01-26 | Wonderland Nurserygoods Co., Ltd. | Secondary lock for stroller fold mechanism |
GB2441317B (en) * | 2006-09-01 | 2011-05-25 | Wonderland Nursery Goods | Folding control mechanism for collapsible stroller |
CN200942791Y (en) | 2006-09-18 | 2007-09-05 | 中山市隆成日用制品有限公司 | Baby carriage folding framework |
TWM315186U (en) * | 2006-10-23 | 2007-07-11 | Link Treasure Ltd | Safety lock for a baby stroller |
CN200957826Y (en) * | 2006-10-26 | 2007-10-10 | 中山市隆成日用制品有限公司 | Baby's seat with single-hand releasing mechanism |
EP2222530B1 (en) | 2007-11-01 | 2016-05-04 | Artsana Usa Inc. | Folding stroller actuating system |
US8100429B2 (en) | 2008-03-31 | 2012-01-24 | Artsana Usa, Inc. | Three dimensional folding stroller with infant carrier attachment and one hand actuated seat recline |
US7887085B2 (en) * | 2008-05-13 | 2011-02-15 | Arthur Wang | Folding and fixing structure of a people-carrying vehicle |
NL1035581C2 (en) * | 2008-06-13 | 2009-12-15 | Maxi Miliaan Bv | Stroller. |
US8240700B2 (en) | 2008-08-15 | 2012-08-14 | Artsana Usa, Inc. | Stroller with travel seat attachment |
PL2323888T3 (en) | 2008-08-15 | 2015-06-30 | Artsana Usa Inc | Stroller |
USD636300S1 (en) | 2009-08-14 | 2011-04-19 | Artsana Usa, Inc. | Stroller |
WO2012027795A1 (en) * | 2010-09-01 | 2012-03-08 | Britax Childcare Pty Ltd | Folding stroller improvements |
USD651140S1 (en) | 2010-12-20 | 2011-12-27 | Artsana Usa, Inc. | Stroller frame tubing |
JP5963394B2 (en) * | 2011-03-03 | 2016-08-03 | アップリカ・チルドレンズプロダクツ合同会社 | Folding baby carriage |
CN103303351B (en) * | 2012-03-06 | 2015-08-12 | 昆山市贝尔儿童用品有限公司 | The handle structure of umbrella car single-hand folding and the children trolley of formation thereof |
US8998242B2 (en) * | 2013-03-14 | 2015-04-07 | Beto Engineering and Marketing Co., Ltd. | Dual-purpose safety baby carrier |
AU2016206307B2 (en) * | 2015-07-20 | 2017-07-20 | Baby Jogger, LLC | Compact folding baby stroller |
CN107972722A (en) * | 2016-10-25 | 2018-05-01 | 环玮健康科技国际企业股份有限公司 | The perambulator for having security can folding bicycle frame |
CN109720395B (en) * | 2019-02-21 | 2024-02-13 | 肖德恩 | Baby carriage frame capable of automatically collecting baby carriage by one key |
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EP0494701A3 (en) * | 1987-07-28 | 1992-09-09 | Aprica Kassai Kabushikikaisha | Baby carriage |
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JP2725866B2 (en) * | 1989-12-14 | 1998-03-11 | 象印ベビー株式会社 | Stroller and method of assembling and folding the same |
JP2542450Y2 (en) * | 1992-10-27 | 1997-07-30 | コンビ株式会社 | Opening and closing operation mechanism provided on the push rod of the stroller |
JP2542123Y2 (en) * | 1993-09-30 | 1997-07-23 | コンビ株式会社 | Stroller remote control mechanism |
US5535483A (en) * | 1994-02-11 | 1996-07-16 | Jane, S.A. | Locking and unlocking device for the folding of baby carriages |
GB2318099B (en) * | 1996-10-10 | 2000-11-29 | Huang Li Chu Chen | Foldable mechanism for use in a stroller |
US5979928A (en) * | 1997-04-02 | 1999-11-09 | Taiwan Kidly Children Appliance Ltd. | Collapsing device for a stroller |
DE20001963U1 (en) * | 2000-02-04 | 2000-05-04 | Cheng Kenny | Folding device with one-hand operation |
-
2000
- 2000-07-26 CN CN00228933U patent/CN2440403Y/en not_active Expired - Lifetime
-
2001
- 2001-03-14 US US09/805,052 patent/US6443479B2/en not_active Expired - Lifetime
- 2001-06-20 DE DE20110226U patent/DE20110226U1/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6416076B1 (en) * | 2000-08-17 | 2002-07-09 | Link Treasure Limited | Collapsible stroller |
GB2426743A (en) * | 2005-06-01 | 2006-12-06 | Lan Red | Foldable stroller |
GB2426743B (en) * | 2005-06-01 | 2008-08-13 | Lan Red | Foldable stroller with a control cable operable to allow for folding of the stroller |
US10150496B2 (en) * | 2014-09-01 | 2018-12-11 | Stroller Tech Limited | Handle assembly for a folding perambulator and a folding perambulator incorporating the same |
CN111483502A (en) * | 2020-06-15 | 2020-08-04 | 苏州功百精密机械科技有限公司 | Transport shallow |
Also Published As
Publication number | Publication date |
---|---|
US6443479B2 (en) | 2002-09-03 |
CN2440403Y (en) | 2001-08-01 |
DE20110226U1 (en) | 2002-02-07 |
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