CN104176104B - The automobile-used castor of baby and the perambulator for being mounted with the castor - Google Patents
The automobile-used castor of baby and the perambulator for being mounted with the castor Download PDFInfo
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- CN104176104B CN104176104B CN201410220025.2A CN201410220025A CN104176104B CN 104176104 B CN104176104 B CN 104176104B CN 201410220025 A CN201410220025 A CN 201410220025A CN 104176104 B CN104176104 B CN 104176104B
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Abstract
The present invention provides a kind of castor that baby is automobile-used and the perambulator for being mounted with the castor.Castor (40) includes：Caster axle (50) is fixed on castor fixed body (41), and extend downwards from castor fixed body；Castor rotary body (60), can be rotated relative to caster axle.Castor rotary body has：The resin bushing (65) being inserted by the perforative canister portion of caster axle (61a) and from top in canister portion.Resin bushing has：It cylindric axle portion (65a) in canister portion and is arranged on the upper end of axle portion and covers the expanding flange (65b) of the upper surface of canister portion.Castor fixed body has the made of metal washer (44) being arranged at the part opposed with expanding flange.
Description
Technical field
The present invention relates to a kind of castor that baby is automobile-used more particularly to a kind of perambulators with excellent smooth rotation
Castor.Moreover, the invention further relates to a kind of perambulators for the castor being mounted with that the baby is automobile-used.
Background technology
The automobile-used castor of baby, as being used as follows the holding mechanism that wheel is kept, that is, not only
Wheel can be made to rotate centered on rotation axis, additionally it is possible to centered on the castor axis extended to intersect with rotation axis
And wheel and the axle kept to wheel is made to rotate.The automobile-used castor of baby applies perambulator according to by operator
Thrust direction, rotate wheel and axle centered on castor axis.Thereby, it is possible to realize that operator is desired
The rotation of perambulator.
For example, as disclosed in Japan Patent JP2005-014894A, the automobile-used castor of baby has：Fixed part,
It is fixed relative to the leg of perambulator；Rotating part supports wheel in a manner of it can rotate, and the rotation
Portion can be rotated centered on castor axis relative to fixed part.
Invention content
Furthermore, it is contemplated that the operability and riding stability of perambulator, preferably constitute fixed part and the rotation of castor
The spinning movement centered on castor axis between portion has smoothness.In the automobile-used castor of existing baby, in assembling
Application of lubricating, and during the use of perambulator, advise the regular oiling of user.But user periodically notes
Oil is very cumbersome.Additionally, it is believed that bearing is packed between fixed part and rotating part, for ensuring that smooth rotation is also to have
Effect.But the use of bearing will increase the manufacturing cost of perambulator, therefore not preferably.I.e., it is desirable that providing one kind does not make
With the castor technology for the smoothness that can ensure the spinning movement centered on castor axis in the case of bearing.
The present invention allows for above-mentioned problem and completes, it is intended that providing a kind of with excellent rotation
The castor of smoothness.
The automobile-used castor of baby according to the present invention, has：Castor fixed body, is fixed on the leg of perambulator；
Metal caster axle is extended downwards from the castor fixed body；Castor rotary body, in the axis of the caster axle
It can be rotated relative to the caster axle centered on the axis upwardly extended；Wheel keeping body is connected to the foot
Take turns rotary body；Wheel is kept in a manner of it can rotate by the wheel keeping body, and the castor rotary body has：Rotation
Main body is turned, with canister portion, cartridge is run through by the caster axle extended downwards from the castor fixed body；Resin system
Bushing is inserted into from top in cartridge, and the resin bushing has cylindric axle portion and expanding flange,
The axle portion of the cylindrical shape is configured in the cartridge of the rotation phosphor bodies, and the expanding flange is arranged on the axis
The upper end in portion and the upper surface for covering cartridge, the castor fixed body have made of metal washer, the made of metal washer quilt
It is arranged on the part opposed with the expanding flange of the resin bushing and extends around the caster axle, it is described
Castor fixed body and the castor rotary body are only mutual with the contact of the resin bushing by the made of metal washer
Contact.
, the axle portion of the cylindrical shape it in the automobile-used castor of baby according to the present invention, may be used such as under type, i.e.,
Length in an axial direction be longer than width of the expanding flange along the radial direction of the axle portion of the cylindrical shape.
, the axle portion of the cylindrical shape it in the automobile-used castor of baby according to the present invention, may be used such as under type, i.e.,
Length in an axial direction be longer than width of the made of metal washer along the radial direction of the axle portion of the cylindrical shape.
It in the automobile-used castor of baby according to the present invention, may be used such as under type, that is, the resin bushing quilt
In indentation to cartridge.
In the automobile-used castor of baby according to the present invention, may be used such as under type, that is, the made of metal washer with
The resin portion supported to the made of metal washer in the castor fixed body is embedded into molding together.
In the automobile-used castor of baby according to the present invention, it may be used such as under type, that is, cartridge is with upward
The mode extended is arranged on the rotation phosphor bodies, and the castor fixed body includes storage canister portion, the storage canister portion
Extended downwards in a manner of storing the cartridge of the rotation phosphor bodies to its inside, in the top of the storage canister portion
Endless groove is formed on part, the endless groove accepts the peripheral part of the made of metal washer.
It in the automobile-used castor of baby according to the present invention, may be used such as under type, that is, the storage canister portion is from institute
State rotation phosphor bodies separation.
It in the automobile-used castor of baby according to the present invention, may be used such as under type, that is, the castor fixed body tool
Have：Installation and adjustment device, is fixed on the leg of perambulator；Axis keeping body is fixed together with the installation and adjustment device, and
And include the made of metal washer, and the axis keeping body keeps the caster axle.
It in the automobile-used castor of baby according to the present invention, may be used such as under type, that is, in the castor rotary body
It is provided with padded coaming between the wheel keeping body, when from the axis direction of the caster axle, the caster axle
It is set in a manner of deviateing with the padded coaming.
Perambulator according to the present invention has：The automobile-used castor of baby with above-mentioned arbitrary characteristics；It is equipped with described
Baby's vehicle main body of the automobile-used castor of baby.
Invention effect
In accordance with the invention it is possible to improve the smooth rotation of castor.
Description of the drawings
Fig. 1 is the figure for being illustrated to an embodiment of the invention, and to indicate the stereogram of perambulator.
Fig. 2 is the side view for indicating the perambulator in Fig. 1.
Fig. 3 is the stereogram for indicating the castor in an embodiment.
Fig. 4 is the partial, longitudinal cross-sectional that the castor being shown in Fig. 3 is indicated from side.
Fig. 5 is the partial enlarged view for the major part that amplification indicates the castor being shown in Fig. 4.
Specific implementation mode
Hereinafter, being illustrated to an embodiment of the invention with reference to attached drawing.Fig. 1 to Fig. 5 is for institute of the present invention
The figure that one embodiment of the perambulator and castor that are related to illustrates.Wherein, perambulator is illustrated in fig. 1 and 2
10 overall structure.The perambulator 10 illustrated in Fig. 1 and Fig. 2 has：Baby's vehicle main body 11 and baby car owner has been mounted on it
Castor 40 on body 11.Wherein, baby's vehicle main body 11 has frame section 20 and handle 26, and the frame section 20 has a pair of of foreleg
22 and a pair of of back leg 24, the handle 26 be linked to frame section 20 in a swingable manner.
The castor 40 that will be described in detail later is installed in the lower end of a pair of of foreleg 22.On the other hand, in a pair of of back leg
24 lower end is equipped with wheel keeping body 38.As shown in Figure 1, the castor 40 being installed on a pair of of foreleg 22 can not only so that
Wheel 75 keeps wheel 75 centered on rotation axis La and in the way of rotating, and can make wheel 75 and to vehicle
The 75 wheel keeping body 70 that is kept of wheel rotate centered on castor axis Lb, wherein the caster axle line Lb for with rotation
Mode orthogonal shaft axis La and the axis extended.On the other hand, wheel keeping body 38 on back leg 24 is installed in by vehicle
The direction of wheel 39 keeps the wheel 39 while remaining fixed in a manner of it can rotate.
In addition, in the perambulator 10 of present embodiment, by making handle 26 be swung relative to frame section 20, so as to
Enough realize following two operations, that is, operator (guardian) holds handle 26 to infant court from the back side of infant
Make the traveling of the perambulator 10 (shape shown in double dot dash line in the state and Fig. 2 of Fig. 1 to the mode in the front of direction of travel
State) operation, and, operator holds handle 26 to the back leg of perambulator 10 from the position of the foreleg side towards infant
The mode that side becomes the front of direction of travel makes the operation of the traveling of perambulator 10 (Fig. 2 with state shown in solid).That is, handle
26 are configured to, with can be released to it is as shown by the solid line in FIG 2 towards in pushing position and Fig. 2 use double dot dash line shown in
The mode of back side pushing position is fixed.
It in this perambulator 10, can also be adopted as, make the also conduct of wheel keeping body 38 being mounted on back leg 24
So-called castor and be configured, to enable the direction of wheel 39 to change.Moreover, being examined from the viewpoint of the operability of perambulator 10
Consider, it is preferred to use such as under type, that is, in this perambulator 10, being installed in being located in foreleg 22 and back leg 24 moves
Castor on the leg in the front in dynamic direction, can realize the wheel and wheel keeping body carried out centered on castor axis
Rotation, and the castor on the leg at the rear for being mounted on moving direction, then limitation centered on castor axis and into
The rotation of capable wheel and wheel keeping body.
In addition, the structure that makes handle 26 relative to frame section 20 and can swing and according to the position of handle 26 and from
The structure of the rotation for the wheel and wheel keeping body that dynamic limitation is carried out centered on castor axis is known structure, for example,
The structure being disclosed in above-mentioned JP2008-254688A can be used.Therefore, in the present specification, omit to the above content
Detailed description.
In addition, in the present embodiment, perambulator 10 is configured to fold, the structure is widely available.Using making
The structure that perambulator 10 can fold is also known structure, such as can use and be disclosed in above-mentioned JP2008-254688A
Structure.Therefore, the detailed description to the above content is omitted in the present specification.
Next, referring especially to Fig. 3 to Fig. 5, the castor 40 being installed on the foreleg 22 of baby's vehicle main body 11 is carried out
Explanation.Fig. 3 and Fig. 4 is respectively the stereogram and sectional view for indicating the castor 40 in an embodiment.Fig. 5 is amplification
Illustrate the partial enlarged view of the major part of castor shown in Fig. 3.In addition, being respectively arranged with foreleg in the lower end of a pair of of foreleg 22
Castor 40.Two castors 40 of foreleg are configured to, mutually identical or symmetrical.
As shown in figure 3, structure, castor 40 have as a whole：Castor fixed body 41 is fixed on the leg of perambulator 10
On；Castor rotary body 60 can be rotated relative to castor fixed body 41；Wheel keeping body 70 is connected to castor rotation
Swivel 60；Wheel 75 is kept in a manner of it can rotate by wheel keeping body 70.As shown in Figure 4 and Figure 5, in castor 40
Inside, metal caster axle 50 extends downwards from castor fixed body 41.Moreover, castor rotary body 60 is with can be in foot
The mode rotated relative to caster axle 50 centered on the axis that the axis of wheel shaft 50 upwardly extends is supported.More specifically,
It includes canister portion 61a that castor rotary body 60, which has rotation phosphor bodies 61, the rotation phosphor bodies 61,.Moreover, canister portion 61a is by caster axle 50
Run through in a manner of it cannot fall off, to which castor rotary body 60 centered on the axial direction of caster axle 50 can be rotated
Mode supported.In addition, wheel keeping body 70 axle 74 and in a manner of so that wheel 75 is rotated to wheel 75 into
Row is kept.
In the castor 40 of the Sketch with more than, wheel 75 can be with the rotation consistent with the axis direction of axle 74
It is rotated relative to wheel keeping body 70 centered on axis La.In addition, castor rotary body 60 can with caster axle 50
Centered on the consistent castor axis Lb of axis direction and relative to the castor fixed body 41 being fixed in baby's vehicle main body 11 and
It is rotated by the caster axle 50 that castor fixed body 41 is supported.
As shown in figure 4, rotation axis La extends in substantially horizontal direction, the traveling of castor axis Lb and perambulator 10
Face (road surface) is substantially orthogonal and extends.In addition, rotation axis La and castor axis Lb can be along the treads of perambulator 10
And it is shifted by configuration.Therefore, it is adjusted by the direction of the thrust by operator to being applied on perambulator 10, so as to
Castor rotary body 60 is set to be rotated relative to castor fixed body 41 and caster axle 50, to realize the rotation of perambulator 10
Turn.
Hereinafter, each structural element to castor 40 is described in detail.
As described above, castor fixed body 41 is fixed on the leg of baby's vehicle main body 11, and to foot by caster axle 50
Wheel rotary body 60 is supported.In the present embodiment, castor fixed body 41 has：Installation and adjustment device 42, is fixed on baby
On the leg of youngster's vehicle 10；Axis keeping body 43 is fixed together with installation and adjustment device 42 and is kept to caster axle 50.
As shown in figure 4, installation and adjustment device 42 has：It the leg storage canister portion 42a that is open upward and is open downwards
Axis keeping body stores canister portion 42b.The end portion for installing the leg 22 of castor is needed to be inserted into leg storage canister portion 42a.Therefore,
Leg, which stores canister portion 42a, has shape corresponding with the shape of leg 22.In the example being illustrated, leg 22 stores canister portion with leg
42a is fixed together by having run through leg 22 simultaneously and leg stores pin 45 of canister portion 42a.Pin 45 is in the length with leg 22
The orthogonal side in direction upwardly extends.As shown in figure 4, the axis keeping body of installation and adjustment device 42 stores canister portion 42b to axis keeping body 43
Upper section stored.
Next, being illustrated to axis keeping body 43.In the present embodiment, axis keeping body 43 is formed, under
The hollow shape component being just open.Axis keeping body 43 has the caster axle storage canister portion 43a being open downwards.Caster axle admission extinguisher
Portion 43a extends along the castor axis Lb delimited by caster axle 50, and the upper section of caster axle 50 is accommodated in
Inside it.Caster axle storage canister portion 43a is configured in the axis keeping body storage canister portion 42b of installation and adjustment device 42.Such as Fig. 4 institutes
Show, the position that the installation and adjustment device 42, axis keeping body 43 and caster axle 50 on the direction along castor axis Lb coincide
Place, is provided through the pin 46 of these three components.The pin 46 is upwardly extended in the side orthogonal with castor axis Lb, and installation is adjusted
It is fixed with each other to save device 42, axis keeping body 43 and caster axle 50.
In addition, as shown in figure 5, axis keeping body 43 has storage canister portion 43b, the storage canister portion 43b from caster axle admission extinguisher
The lower face 43a1 of portion 43a rises expanding and further extends downwards.Inside dimension and the external dimensions for storing canister portion 43b are big
In caster axle storage canister portion 43a.Therefore, as shown in figure 5, the lower face 43a1 of caster axle storage canister portion 43a becomes, in caster axle
Store the cascaded surface that ladder is formed between the inner surface of canister portion 43a and the inner surface of storage canister portion 43b.Moreover, castor fixed body
41 also there is made of metal washer 44, the made of metal washer 44 lower face of caster axle storage canister portion 43a is covered in a manner of cricoid
43a1.Made of metal washer 44 is kept in such a way that its surface is orthogonal with castor axis Lb.
In the example depicted in fig. 5, in the upper section of storage canister portion 43b, for more tight, in storage canister portion 43b
It is formed with endless groove 48 with the boundary of the lower face 43a1 of caster axle storage canister portion 43a, which accepts made of metal pad
The peripheral part of circle 44.By the engaging of the peripheral part and endless groove 48 of made of metal washer 44, to which made of metal washer 44 is supported
In axis keeping body 43.In the present embodiment, relative to the washer 44 formed by metal, axis keeping body 43 is formed by resin.
Moreover, made of metal washer 44 by with the resin portion that caster axle 50 is supported of castor fixed body 41, i.e. axis keeping body
43 common progress insert moldings (insert molding), to which made of metal washer 44 is propped up in a manner of engaging with endless groove 48
It holds.In this case, made of metal washer 44 can be easy and is effectively fixed on the storage canister portion 43b of castor fixed body 41
In.
Next, being illustrated to caster axle 50.The upper section of caster axle 50 is inserted into the castor of axis keeping body 43
Axis is stored in canister portion 43a, and is kept by axis keeping body 43.As shown in Figure 4 and 5, caster axle 50 with admission extinguisher
The mode that gap is vacated between portion 43b further extends downwards from caster axle storage canister portion 43a.Therefore, caster axle 50 with
Mode through the made of metal washer 44 of colyliform extends.In other words, the made of metal washer 44 of colyliform prolongs around caster axle 50
It stretches.
In addition, in caster axle 50, from the parts extended caster axle storage canister portion 43a, to run through rotation phosphor bodies 61
The mode of canister portion 61a extend.As shown in figure 5, the lower end of caster axle 50 has the anti-dropout flange 51 that diameter becomes larger.In this reality
It applies in mode, caster axle 50 is formed by metal.
Next, being illustrated to castor rotary body 60.As described above, castor rotary body 60 has rotation phosphor bodies 61,
The rotation phosphor bodies 61 include canister portion 61a.Caster axle 50 is extended from above to canister portion 61a, and the lower face of canister portion 61a is upper and lower
It is opposed with the flange 51 that prevents from falling off of caster axle 50 on direction.As being illustrated in detail in Figure 5, rotation phosphor bodies 61
Canister portion 61a have anti-dropout flange 51 can not by internal diameter, as a result, by canister portion 61a make castor rotary body 60 with
The mode that can be rotated relative to caster axle 50 and the castor being fixed together with caster axle 50 fixed body 41 is supported.
In addition, as shown in figure 4, castor rotary body 60 also have be inserted from above into rotation phosphor bodies 61 canister portion 61a in
Resin bushing 65.Resin bushing 65 has：The axle portion 65a of hollow cylindrical is configured in rotation phosphor bodies 61
In canister portion 61a, and around the peripheral surface of caster axle 50；Expanding flange 65b is arranged on the upper end of axle portion 65a, and covers
Rotate the upper surface of the canister portion 61a of phosphor bodies 61.In the present embodiment, resin bushing 65 is press-fit into rotation phosphor bodies 61
Canister portion 61a in.That is, in the state of before the axle portion 65a of resin bushing 65 is inserted into canister portion 61a, resin bushing
The outer diameter of 65 axle portion 65a is more than the internal diameter of the canister portion 61a of rotation phosphor bodies 61.
In the castor 40, by make resin bushing 65 axle portion 65a inner peripheral surface on the peripheral surface of caster axle 50
It is slided, to which castor rotary body 60 can be rotated centered on castor axis Lb relative to caster axle 50.In addition,
In order to realize the relative rotation between castor rotary body 60 and caster axle 50, in the axle portion 65a of resin bushing 65
Several clearance are provided between caster axle 50.
As shown in Figure 4 and Figure 5, in the present embodiment, axle portions of the expanding flange 65b of resin bushing 65 from cylindrical shape
The upper end of 65a extends to the radial direction outside of axle portion 65a.Expanding flange 65b is formed, and will be equivalent to axle portion 65a's
Internal part is insculptate hollow disk-shaped, and through there is caster axle 50 in the hollow space.Expanding flange 65b's
Outer diameter is preferably example as shown like that with the outer diameter same degree of the upper surface of canister portion 61a, and more preferably canister portion 61a's is upper
It is more than the outer diameter of end face, so as to the canister portion 61a of rotation phosphor bodies 61 is completely covered from top by expanding flange 65b
Upper surface.As an example, it is contemplated that formability, the thickness of expanding flange 65b can be formed as the thickness phase with axle portion 65a
Same degree.
As shown in Figure 4 and 5, the expanding flange of the resin bushing 65b of the canister portion 61a of covering rotation phosphor bodies 61
65b, it is opposed with the made of metal washer 44 of castor fixed body 41 in the up-down direction.When using perambulator 10, due to perambulator
10 and the weight of the infant on the perambulator 10 is rided in, and makes castor rotary body 60 and castor fixed body 41 upper and lower
It is mutually pressed on direction.Therefore, when castor rotary body 60 is rotated relative to castor fixed body 41, resin bushing 65
Expanding flange 65b will rub with made of metal washer 44.
Resin bushing 65 can be formed using various resin materials.But form the material of resin bushing 65
Material is, for the relationship between metal, particularly be used between made of metal washer 44 and the metal of caster axle 50
Relationship for, preferably compare with superior rub resistance and low rub with the resin material for forming rotation phosphor bodies 61
The resin material of wiping property (smoothness).
In addition, as described above, axis keeping body 43 has, extend downwards from being provided with the position of made of metal washer 44
Store canister portion 43b.Storage canister portion 43b vacates gap between caster axle 50, and extends along castor axis Lb.Rotation
The canister portion 61a and resin bushing 65 of phosphor bodies 61, from outer side covering, are hardly exposed to outside by the storage canister portion 43b.
In addition to this, the storage canister portion 43b in present embodiment is not also contacted with any part of castor rotary body 60.Moreover, such as Fig. 4
Shown in Fig. 5, castor fixed body 41 and castor rotary body 60 only pass through the expanding of made of metal washer 44 and resin bushing 65
The contact of flange 65b, and contact with each other.
As shown in figure 5, in the present embodiment, the outer diameter of made of metal washer 44 is more than the expanding flange of resin bushing 65
The outer diameter of 65b.Even if as a result, because of the clearance between the axle portion 65a and caster axle 50 of resin bushing 65, and castor is caused to revolve
Swivel 60 relative to caster axle 50 rotation axis from the case that original scheduled castor axis Lb has slightly been tilted, castor is solid
Determining body 41 and castor rotary body 60 also can only stablize via the expanding flange 65b of resin bushing 65 with metal washer 44
Ground maintains the state of contact.
In addition, in present embodiment, the cylindric axle portion 65a of resin bushing 65 in axis direction (i.e. with castor axis
Direction parallel Lb) on length L1, be longer than width W1s of the expanding flange 65b along the radial direction of cylindric axle portion 65a.
In addition, the cylindric axle portion 65a of resin bushing 65 in the length L1 in axis direction, also longer than the edge of made of metal washer 44
The width W2 of the radial direction of cylindric axle portion 65a.As described later, from make castor rotary body 60 relative to caster axle 50
And from the perspective of the spin stabilization of castor fixed body 41, preferably this structure.
Moreover, Fig. 3 and castor rotary body 60 shown in Fig. 4 also have locking component 69, the locking component 69 is for limiting
Relative rotation of the castor rotary body 60 relative to castor fixed body 41.Rotating phosphor bodies 61 also has extension 61b, the extension
61b extends to from direction separate the canister portion 61a supported to caster axle 50.Locking component 69 is by pin 67 can put
Dynamic mode is supported by the extension 61b of rotation phosphor bodies 61.As shown in figure 3, in the axis keeping body 43 of castor fixed body 41
On be formed with recess portion 47.Moreover, locking component 69 has protrusion 69a, protrusion 69a can be by relative to rotation phosphor bodies 61
And swung, to be embedded in the recess portion 47 of axis keeping body 43.By being operated to locking component 69, and make protrusion
69a, which fastens or releases with recess portion 47, to be engaged, so as to limit rotation of the castor rotary body 60 relative to castor fixed body 41
Turn or release limitation of the castor rotary body 60 relative to the rotation of castor fixed body 41.
Next, pair wheel keeping body 70 being connected with castor rotary body 60 and wheel 75 illustrate.Wheel is protected
Body 70 is held to keep wheel 75 in a manner of so that wheel 75 is rotated axle 74.In the present embodiment, exist
Hole 73 is formed in wheel keeping body 70, in the hole 73 inserted with by can make wheel 75 rotate in a manner of to wheel 75 carry out
The axle 74 of holding.
In addition, wheel keeping body 70 is connected to castor rotary body in a manner of it can be acted relative to castor rotary body 60
60, and padded coaming 77 is provided between castor rotary body 60 and wheel keeping body 70.In the example shown in the series of figures, with pass through
Axle 74 and delimit rotation axis La extend parallel to run through pin 63, to run through castor rotary body 60 and wheel keeping body
The mode of 70 both sides extends.Centered on the axis consistent with the axial direction of the perforation pin 63, and castor rotary body can be carried out
Relative swing between 60 and wheel keeping body 70.Padded coaming 77 passes through the phase between castor rotary body 60 and wheel keeping body 70
Swing occurs flexible deformation.Padded coaming 77 can play the suspension function for absorbing impact by deformation.As a result,
Comfortable ride experience can be provided to the infant rided on the perambulator 10.
Next, being illustrated to the effect for the castor 40 being made of above structure.
When operator applies thrust to perambulator 10, according to the direction of the thrust, castor rotary body 60 is relative to castor
Axis 50 and castor fixed body 41 and pivoted about with castor axis Lb.As described above, by castor fixed body 41
The caster axle 50 supported continues to extend in the canister portion 61a of the rotation phosphor bodies 61 of castor rotary body 60.Moreover, from upper direction
Resin bushing 65 is inserted into canister portion 61a, the inner surface of canister portion 61a is covered by the axle portion 65a of resin bushing 65, and canister portion
The upper surface of 61a is covered by the expanding flange 65b of resin bushing 65.Therefore, by making the axle portion 65a of resin bushing 65
Inner peripheral surface slided on the peripheral surface of caster axle 50, to castor rotary body 60 can centered on castor axis Lb phase
Caster axle 50 is rotated.
At this point, due to perambulator 10 and riding in the weight of the infant on perambulator 10, and castor rotary body will be made
60 and castor fixed body 41 be directed towards and be extruded along upper and lower directions.Moreover, as shown in Figure 4 and Figure 5, covering rotary body
The expanding flange 65b of the resin bushing 65 of the canister portion 61a of main body 61 is with the made of metal washer 44 of castor fixed body 41 upper and lower
It is opposed on direction.Therefore, when castor rotary body 60 is rotated relative to castor fixed body 41, resin bushing 65 it is expanding convex
Edge 65b is rubbed with 44 phase of made of metal washer.Especially, in the present embodiment, castor fixed body 41 and castor rotary body 60
Only by the contact between the made of metal washer 44 and resin bushing 65, and contact with each other.
Therefore, in the present embodiment, revolved relative to castor fixed body 41 and caster axle 50 in castor rotary body 60
When turning, castor rotary body 60 is contacted via resin bushing 65 with castor fixed body 41 and caster axle 50.When lasting use
When castor 40, the position rubbed is possible to gradually wear out.In view of the point, in the present embodiment, the pad of castor fixed body 41
Circle 44 and caster axle 50 are generally all formed by the metal of rub resistance more superiority.On the other hand, castor rotary body 60
Only it is in contact with made of metal washer 44 and caster axle 50 via resin bushing 65.
Therefore, as long as only making the resin bushing 65 in castor rotary body 60, by relative to made of metal washer 44 and foot
Wheel shaft 50 and self the higher lubricity i.e. resin of smooth rotation and excellent rub resistance can be played to be formed, just
It can inhibit the abrasion by the time in castor 40.That is, being not the entirety high price to castor rotary body 60 and special material
Expect to be formed, but by the installation resin bushing 65 on rotation phosphor bodies 61, it is automobile-used as baby so as to realize
Castor reality manufacturing cost and in castor rotary body 60 generation friction part assign excellent wear resistance with
And smoothness.Frictional resistance inhibition when thereby, it is possible to by relative rotation of the castor rotary body 60 relative to castor fixed body 41
Must be relatively low, also castor rotary body 60 can be made swimmingly to be rotated relative to castor fixed body 41 and caster axle 50.Except this it
Outside, it can also be avoided to reduce the abrasion between castor rotary body 60 and castor fixed body 41, and be coated with when assembling castor
Lubricant forces the regular oiling of user (maintenance).
Especially, making contact between castor rotary body 60 and castor fixed body 41 or castor rotary body 60 and caster axle 50
For the contact between resin parts and made of metal component.Therefore, because the contact between resin parts or made of metal portion
Contact between part is compared, and produces the tendency for reducing frictional resistance, therefore can more swimmingly carry out 60 phase of castor rotary body
For the relative rotation of castor fixed body 41, and abrasion can be reduced.
In addition, in order to make between castor rotary body 60 and caster axle 50 can relative rotation, in the axis of resin bushing 65
It is necessarily provided with clearance between portion 65a and caster axle 50.But when the clearance is larger, the road that is travelled according to perambulator 10
Planar condition etc., and the offset between the axis direction of the axle portion 65a of the axis direction of caster axle 50 and resin bushing 65 will become
Greatly.In this state, when castor rotary body 61 is rotated relative to castor fixed body 41, it is possible to create castor rotary body 60
The dancing (Wobble phenomenon) of micro-vibration is carried out relative to castor fixed body 41 and caster axle 50.Work as production
When raw this phenomenon, the riding stability of perambulator 10 is may be decreased, or even can also be difficult to carry out straight-line travelling.Therefore, at this
In embodiment, in order to inhibit castor rotary body 60 relative to the inclination of caster axle 50, so that it is guaranteed that making resin bushing 65
The length that axle portion 65a can be contacted with caster axle 50 along axis direction is long.
As an example, the cylindric axle portion 65a of resin bushing 65 is formed in the length L1 in axial direction, long
In expanding flange 65b along the radial direction of cylindric axle portion 65a (that is, the side orthogonal with the axis direction of axle portion 65a
Left and right directions on the paper of, Fig. 5) width W1.In this case, it can be ensured that the axle portion 65a of resin bushing 65
The length that can be contacted along axis direction with caster axle 50 is long.As other examples, the cylindrical shape of resin bushing 65
Axle portion 65a axially on length L1 can also be formed, be longer than made of metal washer 44 along cylindric axle portion
The width W2 of the radial direction of 65a.In this case, it can substantially stably ensure that castor rotary body 60 is only served as a contrast via resin system
It covers 65 and is contacted with castor fixed body 41, in turn, it can be ensured that the axle portion 65a of resin bushing 65 is with caster axle 50 along axis side
To and contact length it is long.According to these structures, can inhibit the axle portion 65a of resin liner 65 axially with respect to castor
The axial direction of axis 50 and the case where run-off the straight.As a result, the stability and perambulator of the traveling of perambulator 10 can be improved
10 operability, and the ride experience of perambulator 10 can be improved.
In addition, according to the present embodiment, resin bushing 65 is press-fit into the canister portion 61a of rotation phosphor bodies 61.At this
In the case of kind, resin bushing 65 can be easily fixed in the canister portion 61a of rotation phosphor bodies 61, and castor can be made to revolve
Swivel 60 is swimmingly rotated relative to castor fixed body 41 and caster axle 50.
Moreover, according to the present embodiment, being formed on the upper section of storage canister portion 43b and accepting made of metal washer 44
The endless groove 48 of peripheral part.In this case, metal can steadily be fixed by the storage canister portion 43b of castor fixed body 41
Washer 44 processed.As a result, castor rotary body 60 can be made swimmingly to be rotated relative to castor fixed body 41.In addition, passing through
Insert molding can be easily carried out this structure.Thereby, it is possible to make castor rotary body 60 relative to castor fixed body 41 with
And caster axle 50 and swimmingly rotate.
Moreover, according to the present embodiment, the canister portion 61a of rotation phosphor bodies 61 is arranged in a manner of extending upward to be rotated
On phosphor bodies 61, castor fixed body 41 include by the canister portion 61a for rotating phosphor bodies 61 is received into its it is internal in a manner of downwards
The storage canister portion 43b of extension.According to storage canister portion 43b, can be effectively prevented from castor rotary body 60 and castor fixed body
41 and castor rotary body 60 and caster axle 50 contact area in be mixed into the situation of foreign matter etc..
Moreover, according to the present embodiment, the rotation phosphor bodies of the storage canister portion 43b of axis keeping body 43 from castor rotary body 60
61 separation.As a result, when castor rotary body 60 is rotated relative to castor fixed body 41 and caster axle 50, castor can be prevented
The storage canister portion 43b of fixed body 41 is contacted with rotation phosphor bodies 61 and there is a situation where rub.
Moreover, according to the present embodiment, castor fixed body 41 has installation and adjustment device 42 and axis keeping body 43.According to this
Kind structure, only changes the installation tune being linked to axis keeping body 43 on the leg of perambulator 10 by the structure according to perambulator 10
Device 42 is saved, just the castor 40 with excellent smooth rotation and wearability of present embodiment can be applied to by various knots
The perambulator 10 that structure is constituted.That is, if make by axis keeping body 43, caster axle 50, castor rotary body 60, wheel keeping body 70 with
And the caster units that wheel 75 is constituted, then only by changing installation and adjustment device 42, and the caster units can be applied to by each
The perambulator 10 that kind structure is constituted.More specifically, only canister portion 42a is stored by suitably changing the leg of installation and adjustment device 42
Shape, just castor 40 can be installed on the foreleg or back leg of various perambulators.Thereby, it is possible to improve the general of castor 40
Property.
Moreover, according to the present embodiment, from the direction parallel with castor axis Lb, caster axle 50 with
Buffer unit 77 is configured in a manner of deviation.In other words, padded coaming 77 is not configured in the caster axle along castor axis Lb
On 50 extended line.That is, in the case where perambulator 10 is placed on tread, caster axle 50 and padded coaming 77 with row
The parallel side in face is sailed to be arranged with being upwardly deviated from.It is configured as a result, in the caster axle 50 along castor axis Lb with by padded coaming 77
Situation on extended line is compared, it is easy to ensure that the length of the axle portion 65a of the length of caster axle 50 and resin bushing 65.It is tied
Fruit is, it can be ensured that the length that the axle portion 65a of resin bushing 65 is contacted with caster axle 50 along axis direction is long, in foot
When wheel rotary body 60 carries out relative rotation relative to castor fixed body 41, castor rotary body 60 can be effectively inhibited and kept
There is the generation of the phenomenon that wheel keeping body 70 of wheel 75 is carried out at the same time micro-vibration (dancing).
In addition, various changes can be subject on the basis of above-mentioned embodiment.Such as, it is illustrated that baby's vehicle main body 11
Structure is single example, can carry out various changes.Although for example, in the perambulator 10 of diagram, handle 26 is shown
It is configured to overleaf pushing position (rear position) and shows towards what is swung between pushing position (front position)
Example, but it is also possible to by the way of following, that is, handle 26 is fixed at rear position, pushing position can not be put from behind
Dynamic structure.
Claims (13)
1. a kind of castor that baby is automobile-used, has：
Castor fixed body, is fixed on the leg of perambulator；
Metal caster axle is extended downwards from the castor fixed body；
Castor rotary body, by can be relative to the caster axle centered on axis upwardly extended in the axis of the caster axle
It is rotated；
Wheel keeping body is connected to the castor rotary body；
Wheel is kept in a manner of it can rotate by the wheel keeping body,
The castor rotary body has：
Phosphor bodies are rotated, with canister portion, cartridge is run through by the caster axle extended downwards from the castor fixed body；
Resin bushing, is inserted into from top in cartridge, and the resin bushing has cylindric axle portion
It is configured in the cartridge of the rotation phosphor bodies with the axle portion of expanding flange, the cylindrical shape, the expanding flange quilt
It is arranged in the upper end of the axle portion and covers the upper surface of cartridge,
The castor fixed body have made of metal washer, the made of metal washer be arranged on described in the resin bushing
Extend on the opposed part of expanding flange and around the caster axle,
The castor fixed body and the castor rotary body only connecing by the made of metal washer and the resin bushing
It touches and contacts with each other,
The made of metal washer together with the resin portion supported to the made of metal washer in the castor fixed body by
Insert molding.
2. a kind of castor that baby is automobile-used, has：
Castor fixed body, is fixed on the leg of perambulator；
Metal caster axle is extended downwards from the castor fixed body；
Castor rotary body, by can be relative to the caster axle centered on axis upwardly extended in the axis of the caster axle
It is rotated；
Wheel keeping body is connected to the castor rotary body；
Wheel is kept in a manner of it can rotate by the wheel keeping body,
The castor rotary body has：
Phosphor bodies are rotated, with canister portion, cartridge is run through by the caster axle extended downwards from the castor fixed body；
Resin bushing, is inserted into from top in cartridge, and the resin bushing has cylindric axle portion
It is configured in the cartridge of the rotation phosphor bodies with the axle portion of expanding flange, the cylindrical shape, the expanding flange quilt
It is arranged in the upper end of the axle portion and covers the upper surface of cartridge,
The castor fixed body have made of metal washer, the made of metal washer be arranged on described in the resin bushing
Extend on the opposed part of expanding flange and around the caster axle,
The castor fixed body and the castor rotary body only connecing by the made of metal washer and the resin bushing
It touches and contacts with each other,
Cartridge is arranged in a manner of extending upward on the rotation phosphor bodies,
The castor fixed body include storage canister portion, it is described storage canister portion with by it is described rotation phosphor bodies cartridge store to
Its internal mode extends downwards,
It is formed with endless groove on the upper section of the storage canister portion, the endless groove accepts the periphery of the made of metal washer
Portion.
3. a kind of castor that baby is automobile-used, has：
Castor fixed body, is fixed on the leg of perambulator；
Metal caster axle is extended downwards from the castor fixed body；
Castor rotary body, by can be relative to the caster axle centered on axis upwardly extended in the axis of the caster axle
It is rotated；
Wheel keeping body is connected to the castor rotary body；
Wheel is kept in a manner of it can rotate by the wheel keeping body,
The castor rotary body has：
Phosphor bodies are rotated, with canister portion, cartridge is run through by the caster axle extended downwards from the castor fixed body；
Resin bushing, is inserted into from top in cartridge, and the resin bushing has cylindric axle portion
It is configured in the cartridge of the rotation phosphor bodies with the axle portion of expanding flange, the cylindrical shape, the expanding flange quilt
It is arranged in the upper end of the axle portion and covers the upper surface of cartridge,
The castor fixed body have made of metal washer, the made of metal washer be arranged on described in the resin bushing
Extend on the opposed part of expanding flange and around the caster axle,
The castor fixed body and the castor rotary body only connecing by the made of metal washer and the resin bushing
It touches and contacts with each other,
The castor fixed body has：
Installation and adjustment device, is fixed on the leg of perambulator；
Axis keeping body is fixed together with the installation and adjustment device, and includes the made of metal washer, and the axis is kept
Body keeps the caster axle.
4. the automobile-used castor of baby as described in any one in claims 1 to 3, wherein
The length in an axial direction of the axle portion of the cylindrical shape is longer than radius of the expanding flange along the axle portion of the cylindrical shape
The width in direction.
5. the automobile-used castor of baby as described in any one in claims 1 to 3, wherein
The length in an axial direction of the axle portion of the cylindrical shape be longer than the made of metal washer along the cylindrical shape axle portion half
The width in diameter direction.
6. the automobile-used castor of baby as described in any one in claims 1 to 3, wherein
The resin bushing is press-fit into the cartridge of the rotation phosphor bodies.
7. the automobile-used castor of baby as claimed in claim 2 or claim 3, wherein
The made of metal washer together with the resin portion supported to the made of metal washer in the castor fixed body by
Insert molding.
8. the automobile-used castor of baby as described in claim 1 or 3, wherein
Cartridge is arranged in a manner of extending upward on the rotation phosphor bodies,
The castor fixed body include storage canister portion, it is described storage canister portion with by it is described rotation phosphor bodies cartridge store to
Its internal mode extends downwards,
It is formed with endless groove on the upper section of the storage canister portion, the endless groove accepts the periphery of the made of metal washer
Portion.
9. the automobile-used castor of baby as claimed in claim 2, wherein
The storage canister portion is detached from the rotation phosphor bodies.
10. the automobile-used castor of baby as claimed in claim 8, wherein
The storage canister portion is detached from the rotation phosphor bodies.
11. the automobile-used castor of baby as claimed in claim 1 or 2, wherein
The castor fixed body has：
Installation and adjustment device, is fixed on the leg of perambulator；
Axis keeping body is fixed together with the installation and adjustment device, and includes the made of metal washer, and the axis is kept
Body keeps the caster axle.
12. the automobile-used castor of baby as described in any one in claims 1 to 3, wherein
It is provided with padded coaming between the castor rotary body and the wheel keeping body,
When from the axis direction of the caster axle, the caster axle is set with the padded coaming in a manner of deviateing
It sets.
13. a kind of perambulator, has：
The automobile-used castor of the baby described in any one in claims 1 to 3；
Baby's vehicle main body of the automobile-used castor of the baby is installed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-110282 | 2013-05-24 | ||
| JP2013110282A JP6157927B2 (en) | 2013-05-24 | 2013-05-24 | A caster for a baby carriage and a baby carriage fitted with the caster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104176104A CN104176104A (en) | 2014-12-03 |
| CN104176104B true CN104176104B (en) | 2018-09-28 |
Family
ID=51957540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410220025.2A Active CN104176104B (en) | 2013-05-24 | 2014-05-22 | The automobile-used castor of baby and the perambulator for being mounted with the castor |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6157927B2 (en) |
| KR (1) | KR102182905B1 (en) |
| CN (1) | CN104176104B (en) |
| TW (1) | TWI610829B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10106005B2 (en) * | 2016-05-20 | 2018-10-23 | Tai-Her Yang | Carrier device capable of varying contact damping with pressured displacement |
| CN110461951B (en) | 2017-03-09 | 2022-04-08 | 富士胶片株式会社 | Composition, dichroic material, light-absorbing anisotropic film, laminate, and image display device |
| US11654715B2 (en) * | 2017-05-08 | 2023-05-23 | Snap-On Incorporated | Caster wheel |
| JP7133420B2 (en) * | 2018-09-28 | 2022-09-08 | ピジョン株式会社 | stroller |
| CN115723832A (en) | 2021-09-01 | 2023-03-03 | 明门瑞士股份有限公司 | Wheel connection structure and baby carrier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS481453U (en) * | 1971-05-22 | 1973-01-10 | ||
| JPH0647322B2 (en) * | 1986-08-29 | 1994-06-22 | コンビ株式会社 | Stopper mechanism of caster in baby car |
| CN1647715A (en) * | 2004-01-06 | 2005-08-03 | 苏旺你株式会社 | Bag with caster wheels |
| CN101973304A (en) * | 2010-10-08 | 2011-02-16 | 明门香港股份有限公司 | Infant bearing device and wheel assembly thereof |
| CN102975573A (en) * | 2011-09-05 | 2013-03-20 | 株式会社日乃本锭前 | Luggage castor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW334967U (en) * | 1997-08-27 | 1998-06-21 | Techrich Ind Inc | Improved caster seat of a circular baby walker |
| TWM243801U (en) * | 2003-07-01 | 2004-09-11 | Nike Electronic Copr | Externally-connected serial disc interface connector |
| CN2923459Y (en) * | 2006-07-07 | 2007-07-18 | 明门实业股份有限公司 | Caster device of baby's cart |
| JP5466683B2 (en) * | 2010-10-08 | 2014-04-09 | 明門香港股▲フェン▼有限公司 | Wheel assembly and stroller for infant carrier |
-
2013
- 2013-05-24 JP JP2013110282A patent/JP6157927B2/en active Active
-
2014
- 2014-05-09 TW TW103116590A patent/TWI610829B/en active
- 2014-05-22 KR KR1020140061571A patent/KR102182905B1/en active IP Right Grant
- 2014-05-22 CN CN201410220025.2A patent/CN104176104B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS481453U (en) * | 1971-05-22 | 1973-01-10 | ||
| JPH0647322B2 (en) * | 1986-08-29 | 1994-06-22 | コンビ株式会社 | Stopper mechanism of caster in baby car |
| CN1647715A (en) * | 2004-01-06 | 2005-08-03 | 苏旺你株式会社 | Bag with caster wheels |
| CN101973304A (en) * | 2010-10-08 | 2011-02-16 | 明门香港股份有限公司 | Infant bearing device and wheel assembly thereof |
| CN102975573A (en) * | 2011-09-05 | 2013-03-20 | 株式会社日乃本锭前 | Luggage castor |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201505866A (en) | 2015-02-16 |
| KR102182905B1 (en) | 2020-11-25 |
| KR20140138061A (en) | 2014-12-03 |
| JP2014227129A (en) | 2014-12-08 |
| CN104176104A (en) | 2014-12-03 |
| TWI610829B (en) | 2018-01-11 |
| JP6157927B2 (en) | 2017-07-05 |
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