CN201056225Y - Truckle directionally locking mechanism and baby carriage having the truckle directionally locking mechanism - Google Patents

Truckle directionally locking mechanism and baby carriage having the truckle directionally locking mechanism Download PDF

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Publication number
CN201056225Y
CN201056225Y CNU2007201427300U CN200720142730U CN201056225Y CN 201056225 Y CN201056225 Y CN 201056225Y CN U2007201427300 U CNU2007201427300 U CN U2007201427300U CN 200720142730 U CN200720142730 U CN 200720142730U CN 201056225 Y CN201056225 Y CN 201056225Y
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CN
China
Prior art keywords
castor
bolt element
rotary seat
chute
permanent seat
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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.)
Expired - Lifetime
Application number
CNU2007201427300U
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Chinese (zh)
Inventor
陈舜民
李如意
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.)
Wonderland Nurserygoods Co Ltd Hong Kong
Wonderland Nurserygoods Co Ltd Taiwan
Original Assignee
Wonderland Nurserygoods Co Ltd Taiwan
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
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Priority to CNU2007201427300U priority Critical patent/CN201056225Y/en
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Publication of CN201056225Y publication Critical patent/CN201056225Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A trundle orientation locking mechanism comprises a rotating seat, a fixed seat and a lock plunger component. The fixed seat is connected in group with the legs of a moving device, the rotating seat that rotates axially can be assembled with the fixed seat, and the trundles of the moving device are arranged on the rotating seat; the lock plunger component comprises a body of lock plunger component which can move up and down and is held in the rotating seat, and a clip spring, a part of which elastically protrudes out of the body of lock plunger component; by switching the lock plunger component upwards and downwards and by the limitation of the clip spring, the lock plunger component can be in a locking state or an unlocking state; in the locking state, the lock plunger component can elastically produce interference with the fixed seat to disable the rotating seat to rotate relatively to the fixed seat and orientate the trundles; while in the unlocking state, the interference between the lock plunger component and the fixed seat is released, and the rotating seat can rotate relatively to the fixed seat.

Description

Castor directional lock mechanism and have the perambulator of this castor directional lock mechanism
Technical field
The utility model relates to a kind of castor directional lock mechanism, is meant a kind of carrying mobile device caster wheel directional lock mechanism for baby that is used in especially.
Background technology
Consult Fig. 1, Fig. 2, be US Patent the 6th, 163, a kind of castor assembly 9 that discloses in No. 924, normally in order to being arranged on perambulator etc., this castor assembly 9 comprises a permanent seat 92, and is articulated in the outer pedal 93 of rotary seat 91 with the rotary seat 91, of permanent seat 92 sockets rotationally, and a spring pin 94 that can flexibly be arranged in the rotary seat 91, permanent seat 92 can connect for the foot lever 901 of a perambulator, and one place, permanent seat 92 bottoms is provided with a hole clipping 921 towards rotary seat 91.Rotary seat 91 1 sides are provided with a cross-perforating 911 and can supply a wheel shaft (figure does not show) to stretch through for installing castor (figure does not show), pedal 93 1 ends are articulated in rotary seat 91, spring pin 94 is arranged in the rotary seat 91, and be connected with a end that pedal 93 is articulated in rotary seat 91 can with pedal 93 interlocks.
When the other end of pedal 93 is not trampled, and castor assembly 9 is when being in the state of Fig. 1, and rotary seat 91 can that is to say that with castor the perambulator caster wheel is can the free rotation that make horizontal direction 360 degree around foot lever 901 with respect to permanent seat 92 rotations.And the other end of working as pedal 93 is down trampled, make when castor assembly 9 is in the state of Fig. 2, then can the driven rotary seat 91 li spring pin 94 up outstanding and stretch in the hole clipping 921 of permanent seat 92, whereby, rotary seat 91 just can't freely rotate with respect to permanent seat 92, makes castor directedly to move.
But the shortcoming of this castor assembly 9 is, when the user tramples or down pull the power of pedal 93 when excessive, causes whole perambulator to tilt easily even overturns, and makes the infant who rides in the perambulator produce sense of discomfort even misgivings on the safety are arranged.
The utility model content
The purpose of this utility model is to provide a kind of and reaches directional lock and release the lock caster wheel directional lock mechanism with better simply structure.
Another purpose of the present utility model is to provide a kind of to be had the self-orientation function and uses less operation strength caster wheel directional lock mechanism.
A purpose more of the present utility model is to provide a kind of perambulator of toppling over or overturning caster wheel directional lock mechanism that is difficult for causing when having the simple and operation of structure.
The utility model castor directional lock mechanism is for the mobile device that is assembled in a carrying baby, and described mobile device comprises an at least one foot lever and a castor.Described castor directional lock mechanism comprises a permanent seat, a rotary seat and a latches, described permanent seat and the axial winding of described foot lever, and comprise a permanent seat housing, described permanent seat housing has an axial positioning groove.But the ground winding of described rotary seat axial rotation for the described castor of installing, and comprises that a rotary seat housing, described rotary seat housing have a chute that extends axially and can correspond to described positioning groove at described permanent seat, and described chute has a necking section.Described latches comprises that one is contained in the bolt element body that described chute also can stretch into and withdraw from described positioning groove, and one elasticity protrude the elastic portion of described bolt element body, described bolt element can be between a lock-out state and a release the lock state shift transformation, when described lock-out state, described elastic portion is with respect to top, described necking section, described bolt element body can elastomericly stretch into described positioning groove and described permanent seat is interfered, described rotary seat can't be rotated with respect to described event permanent seat, when described release the lock state, described bolt element body withdraws from described positioning groove.
The utility model perambulator comprises one and has the vehicle frame of plural foot lever, plural described castor directional lock mechanism and plural castor, and described castor directional lock mechanism is assembled in the described foot lever of part at least.Described castor directional lock mechanism comprises a permanent seat, a rotary seat and a latches, described permanent seat and the axial winding of described foot lever, and comprise a permanent seat housing, described permanent seat housing has an axial positioning groove.But the ground winding of described rotary seat axial rotation for the described castor of installing, and comprises that a rotary seat housing, described rotary seat housing have a chute that extends axially and can correspond to described positioning groove at described permanent seat, and described chute has a necking section.Described latches comprises that one is contained in the bolt element body that described chute also can stretch into and withdraw from described positioning groove, and one elasticity protrude the elastic portion of described bolt element body, described bolt element can be between a lock-out state and a release the lock state shift transformation, when described lock-out state, described elastic portion is with respect to top, described necking section, described bolt element body can elastomericly stretch into described positioning groove and described permanent seat is interfered, described rotary seat can't be rotated with respect to described event permanent seat, when described release the lock state, described bolt element body withdraws from described positioning groove.
Described elastic portion can be provided with a jump ring and realize in described bolt element, described jump ring protrudes described bolt element and constitutes described elastic portion for bending strip part elasticity.And a necking section is set in the described chute, make described bolt element can be in the two states that described elastic portion is limited in below, described necking section or top, when described elastic portion was limited in below, described necking section, described rotary seat can be with respect to the permanent seat axial rotation.When described bolt element is up pulled and pass through described necking section, just can rotate to chute when corresponding to described positioning groove at the described relatively permanent seat of described rotary seat, latches stretches into from moving in the described positioning groove and produces interference with permanent seat, make described rotary seat can't with respect to described permanent seat to rotation, just described castor is directed and can't be with respect to the foot lever axial rotation of described mobile device.
The utility model castor directional lock mechanism can up or down be pulled bolt element to move the orientation that locks the directed of castor or remove castor by jump ring is set, and by cooperating of jump ring and necking section, also can allow the described castor lockout mechanism be to have the function that automatically locks, the user only need up pull latches and pass through the necking section, bullet stretched in the positioning groove of permanent seat and produces and interfere when bolt element just can correspond to the positioning groove of permanent seat at the chute of rotary seat, thus, just the situation generation that can avoid the user when the operation castor is directed, perambulator is tilted or overturn because of power is excessive, and also more convenient in operation.
Description of drawings
Fig. 1 is a US Patent the 6th, 163, the part sectional view of a kind of castor assembly of No. 924;
Fig. 2 is the part sectional view that a pedal of the described castor assembly of Fig. 1 is trampled;
Fig. 3 is the preferred embodiment and a mobile device caster wheel stack-mounted block diagram of the utility model castor directional lock mechanism;
Fig. 4 is the element exploded view of described preferred embodiment;
Fig. 5 is the block diagram of the permanent seat reversing state of described preferred embodiment;
Fig. 6 is a bolt element block diagram of described preferred embodiment;
Fig. 7 is the front elevation that described bolt element is in a release the lock state;
Fig. 8 is that described bolt element is in locking and the middle front elevation of release the lock state;
Fig. 9 is that described bolt element is in locking and the middle cutaway view of release the lock state;
Figure 10 is the front elevation that described bolt element is in a lock-out state; And
Figure 11 is the cutaway view that described bolt element is in described lock-out state.
The specific embodiment
Below by a preferred embodiment and accompanying drawing the utility model castor directional lock mechanism is elaborated.
Consult Fig. 3, Fig. 4, the utility model castor directional lock mechanism 1 is in order to the foot lever of winding at a mobile device, and so as to making the castor dress be attached to the foot lever of mobile device, in the present embodiment, the mobile device of indication is perambulator (figure does not show), and perambulator comprises that one has vehicle frame (figure does not show) and a plurality of castor 102 of complex root foot lever 101 (only showing wherein among the figure), described castor directional lock mechanism 1 is can be installed on the part foot lever 101 or all foot levers 101 of perambulator, is attached to each foot lever 101 bottom for castor 102 by castor directional lock mechanism 1 dress.
Described castor directional lock mechanism 1 comprises the rotary seat 11 that a permanent seat 12, can axially be socketed in permanent seat 12 belows rotatably, and one be arranged on rotary seat 11 and can be with respect to rotary seat 11 axially movable bolt element 13, and described bolt element 13 can lock rotary seat 11 when being in a particular orientation with respect to permanent seat 12.
Consult Fig. 4, Fig. 5, permanent seat 12 comprises a permanent seat housing 120, and permanent seat housing 120 has a butt joint sleeve pipe 122, the one cap portion 124 and that radially is centered around butt joint outside, sleeve pipe 122 top is defined in described cap portion 124 and axially extended positioning groove 126 (see figure 5)s, described cap portion 124 comprises a cap roof 128 that is extended toward outer radial by butt joint sleeve pipe 122 apical margins, the one cap surrounding wall 121 that is connected cap roof 128 peripheries and down extends, an and lug 123 that up protrudes cap roof 128, and the profile that cap surrounding wall 121 centers on is not positive circle, the one local segment is away from butt joint sleeve pipe 122, in the present embodiment, positioning groove 126 is to be defined by two separately distance pieces 127, and described two distance pieces 127 are extended towards the direction of butt joint sleeve pipe 122 away from the local segment of butt joint sleeve pipe 122 by cap surrounding wall 121.
Consult Fig. 4, Fig. 7~Fig. 9, rotary seat 11 comprises a rotary seat housing 21, one shock-absorbing element 26 and one is taken turns hub connection 27, rotary seat housing 21 has opening cannula portion 215 up, one roof 211 that is extended toward outer radial by cannula portion 215 outer peripheral faces and one is down extended and is interval in the peripheral wall 212 and an axially extended chute 22 of cannula portion 215 peripheries by roof 211, one is arranged on the necking section 23 in the chute 22, peripheral wall 212 is to make whole rotary seat housing 21 have one first end 213 and one second end 214 around generally being strip, cannula portion 215 is first ends 213 of more contiguous rotary seat housing 21, and the contiguous root edge in peripheral wall 212 left and right sides place also is respectively arranged with a pivoted hole 218.
Chute 22 is that the position is between first end 213 and cannula portion 215 of rotary seat housing 21, the roof 211 at rotary seat housing 21 contiguous first ends 213 places is provided with the roof opening 210 of a connection chute 22, and the peripheral wall 212 at rotary seat housing 21 first ends 213 places also is provided with a peripheral wall opening 217 that is connected with chute 22, in this embodiment, peripheral wall opening 217 is to be extended axially and form along peripheral wall 212 by roof opening 210, described chute 22 comprises the one side inwall 222 of wall opening 217 to the periphery, two respectively the position be positioned at the chute space 221 of 212 of inwall 222 and peripheral walls in inwall 222 side walls and, necking section 23 comprises that two concentrate the triangular bump 231 that extends by two sidewalls of chute 22 respectively, each projection 231 has on one hypotenuse 223 and hypotenuse 224 once, adjoining and top, last hypotenuse 223 bottoms of two projections 231 away from, the top of two times hypotenuses 224 adjoining and bottom away from.
Wheel hub connection 27 top depression are formed with a room 271 in can being placed in for shock-absorbing element 26, and wheel hub connection 27 bottoms then are provided with a cross-perforating 272, can supply a wheel shaft (scheming not show) to pass and the wheel shaft two ends connect a castor 102 (see figure 3)s respectively.Wheel hub connection 27 is 218 of pivoted holes that are articulated in rotary seat housing 21 both sides with one end top.Shock-absorbing element 26 be contained in the room 271 at wheel hub connection 27 tops and between the roof 211 of rotary seat housing 21 with take turns 27 of hub connections, whereby, shock-absorbing element 26 pads are put between rotary seat housing 21 second ends 214 and wheel hub connection 27 other ends, and described shock-absorbing element 26 is made (as rubber) for the elastomeric material of tool, so, when rotary seat housing 21 or wheel hub connection 27 are subjected to loading or when vibrations, just can reach shock-absorbing effect by extruding shock-absorbing element 26.
Permanent seat 12 is with its cap portion 124 rotating cannula portion 215 tops that are embedded at rotary seat housing 21,122 of sleeve pipes of butt joint stretch in the cannula portion 215 of rotary seat housing 21 and assemble mutually with rotary seat housing 21, making rotary seat housing 21 is can be with respect to permanent seat 12 axial rotation, and the foot lever 101 of baby's vehicle frame is butt joint sleeve pipe 122 internal fixation that stretch into permanent seat 12, and lug 1 23 is provided with a perforation and can supplies a locking part (as screw, figure does not show) to pass so that foot lever 101 is fixed on the permanent seat 12.
Consult Fig. 4, Fig. 6, Fig. 7, bolt element 13 comprises a bolt element body 131 and a jump ring 130.It is tabular that described bolt element body 131 is the rectangular arc of hollow, its both sides are respectively arranged with a side opening 133, the bottom then is provided with a bottom opening 134, two side openings 133 and is connected with bottom opening 134, and bolt element body 131 1 side centre are also protruded an actuation part 135 that is en plaque.Described jump ring 130 bendings generally are inverted U-shaped and are contained in the bolt element body 131, and have two bend arms, 136, two bend arms 136 and all bend outward and constitute two elastic portion 132 by two side openings, 133 elastomeric protrusion bolt element body 131 both sides in the part.
Consult Fig. 9, Figure 10, when described bolt element 13 is contained in the chute 22 of rotary seat housing 21, its actuation part 135 is protruded rotary seat housing 21 by peripheral wall opening 217, whereby, bolt element 13 can be pulled up and down in chute 22 and is in a release the lock state (see figure 7) and a lock-out state (see figure 10).
Consult Fig. 7, when bolt element 13 is in the release the lock state, the elastic portion 132 of bolt element 13 is limited between two times hypotenuses 224 of necking section 23, at this moment, rotary seat housing 21 can be with respect to permanent seat 12 axial rotation, and just perambulator caster wheel 102 is can be with respect to foot lever 101 axial rotation of baby's vehicle frame.
Consult Fig. 3, Fig. 7, Fig. 8, Fig. 9, when the user will lock the working direction of castor 102, it then is the actuation part 135 of up trip lock spigot 13, make bolt element 13 toward top offset, and in the process of trip lock spigot 13, as shown in Figure 8, the elastic portion 132 of bolt element 13 both sides is rotated that 21 liang of projections 231 of a housing are pushed and in the retraction bolt element body 131, after by the relative peak of two projections 231, the guide function that bolt element body 131 produces because of 223 pairs of elastic portion of last hypotenuse 132 of the elastic-restoring force of two elastic portion 132 and two projections 231, make latches body 131 be resisted against cap portion 124 root edges of permanent seat 12, as Figure 10 and shown in Figure 11, when castor 102 rotates to the positioning groove 126 of chute 22 alignment permanent seats 12 of rotary seat housing 21, bolt element body 131 tops just extend from moving in the positioning groove 126 of permanent seat 12 and produce with described permanent seat 12 and to interfere, and make rotary seat housing 21 to rotate and the effect of performance castor 102 orientations with respect to permanent seat 12 again.
Consult Fig. 3, Fig. 7, and when the user does not need castor 102 orientations, need only the down actuation part 135 of trip lock spigot 13, the positioning groove 126 that makes bolt element body 13 tops down withdraw from permanent seat housing 121 gets final product, when bolt element 13 moves down its elastic portion 132 by two projections 231 relative peak and slip between the following hypotenuse 224 of two projections 231 and when being limited in 23 belows, necking section, rotary seat 11 just can be once again with respect to permanent seat 12 axial rotation.
As mentioned above, the utility model castor directional lock mechanism 1 cooperates the necking section 23 in the chute 22 to constitute locking piece 13 at the position-limiting action of locking with two states of release the lock by a jump ring 130 that is contained in bolt element body 131, cooperate the positioning groove 126 of permanent seat 11 again and reach the directional lock mechanism of castor 102, not only simple in structure, and by latches 13 2 elastic portion 132 and necking section 23 two on the cooperating of hypotenuse 223, also make castor directional lock mechanism 1 have self-orientating function, when the user needs castor 102 orientations, the chute 22 of supposing rotary seat 11 does not align with the positioning groove 126 of permanent seat 12 originally, this moment is when making its elastic portion 132 arrive at the relative peak of two projections 231 by up pulling latches 13, be subjected to the restriction of cap portion 124 root edges and have an elastic deformation because of being subjected to elastic portion 132, because castor 102 can rotate freely, but the chute 22 that castor 102 and rotary seat 11 rotate to the latter is during with the positioning groove 126 of permanent seat 12 cap portions 124, latches body 131 bullet immediately extends in the positioning groove 126 and with castor 102 orientations, it is excessive and cause perambulator to tilt or the situation of overturning takes place to avoid the user to operate the power of latches 13 whereby, and also more convenient in the operation.

Claims (16)

1. castor directional lock mechanism, for being assembled in a mobile device, described mobile device comprises an at least one foot lever and a castor, described castor directional lock mechanism comprises a permanent seat and a rotary seat, described permanent seat and the axial winding of described foot lever, but described rotary seat axial rotation ground winding, is characterized in that for the described castor of installing at described permanent seat:
Described permanent seat comprises a permanent seat housing, and described permanent seat housing has an axial positioning groove;
Described rotary seat comprises a rotary seat housing, and described rotary seat housing has a chute that extends axially and can align with described positioning groove, and described chute has a necking section; And
Described castor directional lock mechanism also comprise one can be between a lock-out state and a release the lock state bolt element of shift transformation, described bolt element comprises that one is contained in the bolt element body that also can stretch into and withdraw from described positioning groove in the described chute, and one lateral elasticity protrude the elastic portion of described bolt element body, when described lock-out state, described elastic portion is positioned at top, described necking section, described bolt element body can elastomericly stretch into described positioning groove and interfere with described permanent seat, when described release the lock state, described bolt element body withdraws from described positioning groove.
2. castor directional lock as claimed in claim 1 mechanism, it is characterized in that: described bolt element also comprises a jump ring, described jump ring has two bend arms, described bolt element body interior forms an accommodation space for ccontaining described jump ring, and described bolt element body both sides are provided with a side opening that is connected with described accommodation space respectively, and two bend arms of described jump ring define described elastic portion by described both-side opening protrusion respectively.
3. castor directional lock as claimed in claim 1 mechanism, it is characterized in that: described rotary seat housing also has opening cannula portion, up by the roof of described cannula portion outer peripheral face toward the outer radial extension, and one down extended by described roof and be interval in the surrounding wall of described cannula portion periphery, and described chute is to be defined between described peripheral wall and described cannula portion one side.
4. castor directional lock as claimed in claim 3 mechanism, it is characterized in that: described roof is provided with a roof opening that is connected with described chute, can protrude described roof for described bolt element body top; Described peripheral wall is provided with a peripheral wall opening that is connected with described chute; Described bolt element comprises that also one connects described bolt element body and exposes outside the actuation part of described rotary seat housing for the application of force by described peripheral wall opening.
5. castor directional lock as claimed in claim 1 mechanism, it is characterized in that: described permanent seat housing comprises that one can radially be centered around cap portion around the described butt joint sleeve pipe for the butt joint sleeve pipe and that is plugged on described rotary seat, and described positioning groove is to be defined in described cap portion bottom.
6. castor directional lock as claimed in claim 1 mechanism is characterized in that: described necking section comprises the projection that is protruded relatively by described chute both sides respectively.
7. castor directional lock as claimed in claim 6 mechanism, it is characterized in that: each projection has on one hypotenuse and hypotenuse once, adjoining and bottom, the following hypotenuse top of described two projections away from, the last hypotenuse bottom of described two projections adjoining and top away from.
8. castor directional lock as claimed in claim 1 mechanism, it is characterized in that: described rotary seat also comprise with described rotary seat housing mutually stack-mounted one shock-absorbing element and take turns hub connection, described shock-absorbing element is arranged on described rotary seat housing and described the wheel between hub connection, and the described hub connection of taking turns can be for described castor is set.
9. perambulator, comprise one and have the vehicle frame of plural foot lever, plural castor directional lock mechanism and plural castor, described castor directional lock mechanism is assembled in the described foot lever of part at least, described castor directional lock mechanism comprises a permanent seat and a rotary seat, described permanent seat and the axial winding of described foot lever, but described rotary seat axial rotation ground winding, is characterized in that for the described castor of installing at described permanent seat:
Described permanent seat comprises a permanent seat housing, and described permanent seat housing has an axial positioning groove;
Described rotary seat comprises a rotary seat housing, and described rotary seat housing has one and extends axially the chute that also can correspond to described positioning groove, and described chute has a necking section; And
Described castor directional lock mechanism also comprise one can be between a lock-out state and a release the lock state bolt element of shift transformation, described bolt element comprises that one is contained in the bolt element body that described chute also can stretch into and withdraw from described positioning groove, and one lateral elasticity protrude the elastic portion of described bolt element body, when described lock-out state, described elastic portion is with respect to top, described necking section, described bolt element body can elastomericly stretch into described positioning groove and interfere with described permanent seat, when described release the lock state, described bolt element body withdraws from described positioning groove.
10. perambulator as claimed in claim 9, it is characterized in that: described bolt element also comprises a jump ring, described jump ring has two bend arms, described bolt element body interior forms an accommodation space for ccontaining described jump ring, and described bolt element body both sides are provided with a side opening that is connected with described accommodation space respectively, and two bend arms of described jump ring define described elastic portion by described both-side opening protrusion respectively.
11. perambulator as claimed in claim 9, it is characterized in that: described rotary seat housing also has opening cannula portion, up by the roof of described cannula portion outer peripheral face toward the outer radial extension, and one down extended by described roof and be interval in the surrounding wall of described cannula portion periphery, and described chute is to be defined between described peripheral wall and described cannula portion one side.
12. perambulator as claimed in claim 11 is characterized in that: described roof is provided with a roof opening that is connected with described chute, can protrude described roof for described bolt element body top; Described peripheral wall is provided with a peripheral wall opening that is connected with described chute; Described bolt element comprises that also one connects described bolt element body and exposes outside the actuation part of described rotary seat housing for the application of force by described peripheral wall opening.
13. perambulator as claimed in claim 9, it is characterized in that: described permanent seat housing comprises that one can radially be centered around cap portion around the described butt joint sleeve pipe for the butt joint sleeve pipe and that is plugged on described rotary seat, and described positioning groove is to be defined in described cap portion bottom.
14. perambulator as claimed in claim 9 is characterized in that: described necking section comprises the projection that is protruded in opposite directions by described chute both sides respectively.
15. perambulator as claimed in claim 14 is characterized in that: each projection has on one hypotenuse and hypotenuse once, adjoining and bottom, the following hypotenuse top of described two projections away from, the last hypotenuse bottom of described two projections adjoining and top away from.
16. perambulator as claimed in claim 9, it is characterized in that: described rotary seat also comprise with described rotary seat housing mutually stack-mounted one shock-absorbing element and take turns hub connection, described shock-absorbing element is arranged on described rotary seat housing and described the wheel between hub connection, and the described hub connection of taking turns can be for described castor is set.
CNU2007201427300U 2007-05-16 2007-05-16 Truckle directionally locking mechanism and baby carriage having the truckle directionally locking mechanism Expired - Lifetime CN201056225Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201427300U CN201056225Y (en) 2007-05-16 2007-05-16 Truckle directionally locking mechanism and baby carriage having the truckle directionally locking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201427300U CN201056225Y (en) 2007-05-16 2007-05-16 Truckle directionally locking mechanism and baby carriage having the truckle directionally locking mechanism

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CN201056225Y true CN201056225Y (en) 2008-05-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102119885A (en) * 2010-01-08 2011-07-13 粟广欢 Multifunctional stretcher with caster direction control device
CN101670845B (en) * 2008-09-10 2011-08-10 明门实业股份有限公司 Directing mechanism of stroller wheel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101670845B (en) * 2008-09-10 2011-08-10 明门实业股份有限公司 Directing mechanism of stroller wheel
CN102119885A (en) * 2010-01-08 2011-07-13 粟广欢 Multifunctional stretcher with caster direction control device
CN102119885B (en) * 2010-01-08 2014-01-01 粟广欢 Multifunctional stretcher with caster direction control device

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Granted publication date: 20080507