CN104129226B - Infant car wheel and perambulator - Google Patents
Infant car wheel and perambulator Download PDFInfo
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- CN104129226B CN104129226B CN201410178037.3A CN201410178037A CN104129226B CN 104129226 B CN104129226 B CN 104129226B CN 201410178037 A CN201410178037 A CN 201410178037A CN 104129226 B CN104129226 B CN 104129226B
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Abstract
The present invention, which provides a kind of infant car wheel and perambulator, wheel (20), has tire (40) and wheel hub (30).Wheel hub (30) has：Annular base (35), its along the circumferential direction (dc) extension and formation tabular；The outer ribs (37) of a pair of ring-types, it is from the opening position being separated from each other on base portion (35) to the protruding outside of the radial direction of wheel (20)；A pair of inside rib (39), it is from the opening position between a pair of outside rib on base portion to the protruding outside of radial direction.The projecting height of interior side rib is higher than the projecting height of outer ribs.Tire has：Tire base (45), it is tabular, and by interior side rib and outer ribs supporting and towards bending to convex on the outside of radial direction；Medial extrusion (49), its inner side from tire base to radial direction is prominent, and between two ribs.
Description
Technical field
The present invention relates to a kind of infant car wheel and perambulator.
Background technology
Such as disclosed in JP2002-220060, the perambulator with wheel is widely utilized.Ordinary circumstance
Under, by the way that solid tire will be formed as using resin, rubber, foamed plastic etc., it is embedded on wheel hub, so as to form baby
The wheel of car.In existing more infant car wheel, as shown in figure 5, wheel hub 90 have a pair of supporting wall portions 91, described one
To opening position of the supporting wall portion 91 in two outsides on width, towards the protruding outside of radial direction and in circumference
Side upwardly extends.On the other hand, tire 95 has：Convex portion 96 is used in engaging, and it is to be configured between a pair of supporting wall portions 91
Mode and formed；Tire outside portion 97, it is located at the outside of the radial direction of engaging convex portion.By using the engaging of tire 95
Convex portion 96 is configured between a pair of supporting wall portions 91 of wheel hub 90, so as to which tire 95 is installed on wheel hub 90.In addition, tire 95
Tire outside portion 97 be supported in a pair of supporting wall portions 91, so as to play impact absorbency and ability of absorbing vibration.
As described above, although tire outside portion plays the impact absorbency expected originally wheel and absorption of vibrations
Property, but be divided because the engaging convex portion of tire is located at by the supporting wall portion of wheel hub in the space to be formed, therefore
Load is not subject between the ground of perambulator traveling and wheel hub.That is, the engaging of tire does not play impact absorbency with convex portion
And shock absorption, and be only utilized as just the holding section of wheel hub.Nevertheless, the engaging of tire is with convex
Portion is formed as heavy wall type in the same manner as tire outside portion, using the bigger material of proportion.Its result is existing wheel production
A problem that having given birth to re-quantization, manufacturing cost the rising of perambulator.It is additionally, since in the wheel of this species, tire
With thick wall part, therefore a problem that molding time is elongated, and dimensional accuracy reduces be present.
The content of the invention
On the other hand, present inventor attentively repeats the result of research, have developed the car different from existing wheel
Wheel.In the wheel, the contraction of the tire base by the way that the ground plane for forming tire is positively utilized, so as to which tire be installed
In on wheel hub.Therefore, unlike the prior art, can exclude mainly as the engaging for being installed on tire on wheel hub
Portion and the thick wall part that is used is arranged at the necessity on tire.The present invention is complete according to such opinion of present inventor
Into invention, it is therefore intended that, there is provided a kind of following wheel and the perambulator with the wheel, the wheel can be with
Solve the existing various unfavorable conditions because caused by tire has thick wall part.
Wheel involved in the present invention is a kind of infant car wheel, and it with rotation axis can be pivoted about
Mode be kept, the infant car wheel possesses：Wheel hub, it has the base portion of ring-type and the interior side rib of a pair of ring-types, institute
Base portion is stated on the circumferencial direction centered on the rotation axis to extend；The interior side rib from the base portion along parallel
In opening position of the axis direction compared with the both ends of the base portion in the inner part of the rotation axis, to the rotation axis
Centered on radial direction it is protruding outside, and along the circumferencial direction extend；Tire, it is from the outside of the radial direction
Be installed on the wheel hub, the tire has ring-type tire base and a Medial extrusion, the tire base at least through
The pair of interior side rib and be supported by, so as on the section parallel with the axis direction and the radial direction, to institute
State and convex is bent on the outside of radial direction, and extend along the circumferencial direction, the Medial extrusion is from the tire base
Portion is prominent to the inner side of the radial direction, and can engage with the interior side rib, the radial direction of the tire base
Outside surface formed ground plane.
In wheel involved in the present invention, following structure can be used, i.e. the wheel hub also has the outer of a pair of ring-types
Side rib, the outer ribs are outside two of the interior side rib for turning into the pair of ring-type on the axis direction on the base portion
The opening position of side, extend to the protruding outside of the radial direction, and along the circumferencial direction；
The projecting height from the base portion along the radial direction laterally of the interior side rib, with the outer ribs from
The base portion is compared and higher along the projecting height of the radial direction laterally.
In wheel involved in the present invention, following structure can be used, i.e. the outer ribs are configured in the base portion
The axis direction on end opening position.
In wheel involved in the present invention, following structure can be used, i.e. the tire base of the tire,
Between the outer ribs and the interior side rib on the axis direction, separated with the base portion of the wheel hub.
In wheel involved in the present invention, the Medial extrusion of the tire is located at, on the axis direction
Between adjacent any two rib.
In wheel involved in the present invention, following structure can be used, i.e. the Medial extrusion position of the tire
Between the pair of interior side rib, the pair of interior side rib of the Medial extrusion of the tire on the axis direction it
Between, separated with the base portion of the wheel hub.
In wheel involved in the present invention, following structure can be used, i.e. the base section of the tire and the wheel hub
From.
In wheel involved in the present invention, following structure can be used, i.e. the Medial extrusion from the tire
The projecting height of base portion, it is relatively low compared with the thickness of the tire base.
In wheel involved in the present invention, following structure can be used, i.e. the tire is being installed in the wheel hub
In the state of upper, by the tensile stress towards the circumferencial direction in the whole region on the axis direction.
In wheel involved in the present invention, following structure can be used, i.e. be installed in the wheel hub in the tire
In the state of upper, the two-end part on the axis direction of the tire base is in described half with the Medial extrusion
Medial extremity on the direction of footpath is compared, by the opening position of the inner side of the radial direction.
In wheel involved in the present invention, following structure can be used, i.e. the end of the tire base is positioned at described
The opening position in the outside on the axis direction at the both ends of base portion.
In the wheel of the present invention, following structure can be used, i.e. the base portion of the wheel hub and the axis direction
Extend parallel to.
Perambulator involved in the present invention possesses any one in wheel involved in the present invention described above.
In accordance with the invention it is possible to solve the various unfavorable conditions caused by tire has thick wall part.
Brief description of the drawings
Fig. 1 is the figure for illustrating an embodiment of the invention, and to represent the solid of the perambulator with wheel
Figure.
Fig. 2 is the side view for representing infant car wheel.
Fig. 3 is the sectional view along the III-III lines in Fig. 2.
Fig. 4 is sectional view in the expression section same with Fig. 3, to the tire before installation on wheel hub.
Fig. 5 is the sectional view of in the expression section same with Fig. 3, existing infant car wheel.
Embodiment
Hereinafter, one embodiment of the present invention is illustrated referring to the drawings.
As shown in figure 1, perambulator 10 has：Baby's vehicle main body 11, it has foreleg 12 and back leg 14；Front-wheel keeps single
Member 13, it is arranged at the lower end of the foreleg 12 of baby's vehicle main body 11；And trailing wheel holding unit 15, it is arranged at perambulator
The lower end of the back leg 14 of main body 11.As an example, front-wheel holding unit 13 can be configured to, as with rotatable and can
The caster (caster) that the mode of turning is supported to wheel 20.In addition, trailing wheel holding unit 15 can be configured to, as
The maintaining body supported in a manner of rotatable and can turn to wheel 20.Although front-wheel holding unit 13 and trailing wheel are protected
Holding unit 15 can keep to the wheel of different structures respectively, but hereinafter, enter as the wheel 20 to same structure
The component that row is kept illustrates.
As shown in figure 1, wheel 20 has wheel hub 30 and the tire 40 being installed on wheel hub 30.Wheel hub 30 is can revolve
Turn ground mode to be maintained on corresponding front-wheel holding unit 13 or trailing wheel holding unit 15.On the other hand, the quilt of tire 40
It is embedded in wheel hub 30 and is fixed on wheel hub 30.
Wheel hub 30 has：Rim part 32, it prolongs in the circumferencial direction dc upper annulars centered on the rotation axis of wheel 20
Stretch；Spoke 31, it is on the direction dr (hreinafter referred to as " radial direction ") of the radius centered on the rotation axis of wheel 20
Extension, in other words, centered on the rotation axis of wheel 20, radiated entends.Multiple spokes 31 are in radial direction dr inner side
Converge at end.Spoke 31 meet formed with the through hole 31a for running through for axletree (not shown).Wheel hub 30 is used as one
Example, can be by the way that resin material injection molding be integrally formed.
Next, referring especially to the sectional view shown in Fig. 3, and further the rim part 32 of wheel hub 30 is illustrated.Fig. 3
Shown section is the section parallel with radial direction dr and axis direction (width) da, wherein the axis direction
It is parallel with the rotation axis of wheel 20.
The rim part 32 of wheel hub 30 has：Base portion 35 and outside from from base portion 35 to radial direction dr are (with rotation axis
The side of separation) prominent outer ribs 37 and interior side rib 39.Base portion 35 extends on circumferencial direction dc and turns into ring-type, and
Turn into tabular on the section of da in the axial direction.Especially, in the example shown in the series of figures, base portion 35 is formed as in Fig. 3 section
The tabular extended parallel to axis direction da.Opening position at the axis direction da of base portion 35 both ends, is respectively arranged with
Outer ribs 37.In addition, between a pair of outside rib 37 on the axis direction da on base portion 35, a pair of inside rib 39 is provided with.
That is, a pair of inside rib 39 is located at, the opening position to stagger from the inward at both ends side on axis direction da of base portion 35.A pair of inside rib
39 are configured in a manner of being separated from each other on axis direction da on base portion 35.
Outer ribs 37 and interior side rib 39 are arranged on the surface in the radial direction dr of base portion 35 outside, and to radius side
To the protruding outside of dr.Especially in the example shown in the series of figures, outer ribs 37 and interior side rib 39, in a manner of parallel to radial direction dr
Extend from base portion 35.For a pair of outside rib 37, the projecting height from base portion 35 along radial direction dr laterally is identical.
In addition, for a pair of inside rib 39, the projecting height from base portion 35 along radial direction dr laterally is identical.Moreover, inner side
The projecting height from base portion 35 along radial direction dr laterally of rib 39, with outer ribs 37 from base portion 35 along radial direction
The projecting heights of dr laterally are compared and higher.Outer ribs 37 and interior side rib 39 extend and form ring in a circumferential direction respectively
Shape.
Next, tire 40 is illustrated.As shown in Figures 2 and 3, tire 40 is mounted from radial direction dr outside
On wheel hub 30.As shown in figure 3, tire 40 has：Tire base 45, it is tabular, and passes through a pair of outside rib 37 and one
Internal side rib 39 and be supported by；And Medial extrusion 49, it is arranged on tire base 45.Tire base 45 is in tire 40
Section (section parallel with axis direction da and radial direction dr) shown in Fig. 3 in the state of being installed on wheel hub 30
In, axis direction da middle body is to protruding outside on radial direction dr, so as to be integrally formed to the outer of radial direction dr
Tabular of the lateral bend into convex.The surface in the radial direction dr of tire base 45 outside forms the ground connection contacted with ground
Face 41.
Medial extrusion 49 is arranged on the surface of the radial direction dr of tire base 45 inner side.Pacified in tire 40
In the state of on wheel hub 30, Medial extrusion 49 is configured between a pair of inside rib 39 of wheel hub 30.Illustrated
In example, circumferentially dc extends Medial extrusion 49, and forms ring-type.In addition, in the section shown in Fig. 3, inner side
Protuberance 49 has curvilinear outline.Especially in the section shown in Fig. 3, Medial extrusion 49 turns into equivalent to circle or ellipse
The shape of a round part.In illustrated example, Medial extrusion 49 from tire base 45 along radial direction dr's
Projecting height, it is relatively low compared with the thickness of tire base 45.In addition, the Medial extrusion 49 of tire 40 is on axis direction da
A pair of inside rib 39 between separated with the base portion 35 of wheel hub 30.
The material that tire 40 has extensibility by resin, rubber, foamed plastic etc. is formed.Can setting according to perambulator
Meter, and tire 40 is designed to there is defined intensity and durability., can as the typical material being used in the manufacture of tire
To illustrate EVA crosslinked foaming materials.EVA crosslinked foamings material is ethene-vinyl acetate copolymer, and to make vinyl hydrocarbonization
Compound polymerize and manufactured thermoplastic foamed material.There is suitable intensity, flexibility and elasticity in EVA crosslinked foaming materials
This aspect, can be suitably used as the material of baby's tire for vehicles 40.In addition, by EVA crosslinking foaming materials
Rubber-like is added in material, so as to improve the elasticity of tire 40 and heat resistance, and by adding pigment, can also give tire
40 colorings.
In the wheel 20 of present embodiment, it can pacify via the steps by tire 40 from the outside of radial direction
In rim part 32 loaded on wheel hub 30, i.e. tire 40 is stretched to its girth circumferentially dc by elastic deformation
In the state of increase, the tire 40 is configured into the 32 first-class step of rim part in wheel hub 30.Fig. 4 illustrates tire 40 and is mounted
State before wheel hub 30.Section shown in Fig. 4 illustrates the section same with Fig. 3, and illustrates and do not apply external force
Tire 40 after under state, shaping.In the example depicted in fig. 4, the tire base 45 of tire 40 forms da in the axial direction
The tabular of extension, and do not bend.In addition, the tire base 45 of tire 40 except the both ends on axis direction da it
Outside, there is fixed thickness along axis direction da.
In the wheel 20 shown in Fig. 3, tire 40 turns into the whole region of da in the axial direction to circumferencial direction dc
The state of stretching.In other words, tire 40 turns into and is stretched in the whole region of da in the axial direction on circumferencial direction dc
The state of stress.Therefore, the both ends of the whole width of tire 40, the most inner side, and being stretched on radial direction dr
Stress.Especially in the example shown in the series of figures, in the state of tire 40 is installed on wheel hub 30, the axis direction of tire base 45
Both ends 45a on da is located at, by radial direction compared with the medial extremity 49a on the radial direction dr of Medial extrusion 49
The opening position of side.Therefore, as long as not applying larger external force, then being stretched the end 45a of the tire base 45 of stress will support
Stretch-proof stress and stretch, thus, it is possible to effectively prevent situation that tire 40 is opened and come off from wheel hub 30 from end 45a.
By described above, the tire base 45 for the tire 40 being installed on wheel hub 30, along passing through the base from wheel hub 30
Portion 35 is divided the path to be formed and extended to the outer ribs 37 protruding outside on radial direction dr and interior side rib 39, and such as
Diagram maintains the shape of bending like that.Therefore, as shown in figure 3, between outer ribs 37 and interior side rib 39 on axis direction da,
The tire base 45 of tire 40 separates with the base portion 35 of wheel hub 30 on radial direction dr.In addition, in the example shown in the series of figures, in axle
Between a pair of inside rib 39 on the da of line direction, the Medial extrusion 49 of tire 40 separates with the base portion 35 of wheel hub 30.Its result
For in the wheel 20 of diagram, tire 40 separates with the base portion 35 of wheel hub 30.
Next, the effect to present embodiment illustrates.
In present embodiment described above, wheel hub 30 has base portion 35 and a pair of inside rib 39, and tire 40 has
Tire base 45 and Medial extrusion 49, also, tire 40 is pacified by its elastic restoring force from radial direction dr outside
Loaded on wheel hub 30.Therefore, the tire base 45 of tire 40 is supported by the interior side rib 39 of wheel hub 30, so as in da in the axial direction
Section in turn into the tabular that convex is bent on the outside of radial direction dr, in addition, Medial extrusion 49 can be with interior side rib
39 engagings.
According to the wheel 20 of such present embodiment, by making the Medial extrusion 49 of tire 40 and the card of wheel hub 30
Close, so as to limit staggering for the da in the axial direction between wheel hub 30 and tire 40, and pass through the receipts of tire base 45
Contracting, so that tire 40 engages with wheel hub 30.Therefore, tire as existing wheel without having the heavy section of engaging
(the engaging convex portion 96 in Fig. 5).The impact absorbency or ability of absorbing vibration of the original purpose of tire can not be played by exclusion
Heavy section, so as in the present embodiment, can directly reduce the manufacturing cost of wheel 20.Further, since tire 40 be
In material used in perambulator, the larger material of proportion, therefore, by excluding heavy section, so as to make wheel 20 and
The lightweight of perambulator 10.
It is additionally, since what the tire 40 of wheel 20 protruded by the tire base 45 of the banding bent and from tire base 45
Medial extrusion 49 is formed, and does not have heavy section, therefore, it is possible to shorten the curring time of tire 40, and can improve wheel
The dimensional accuracy of tire 40.Especially, the material used in the tire as infant car wheel and use in general foam rubber
When the expanded materials such as glue are so as to manufacture tire 40, it can significantly shorten the heat time for foaming and molding.
Further, since the dimensional accuracy of tire 40 is improved, and the tire of the tabular using the bending as ground plane 41
The contraction of base portion 45 and tire 40 is installed on wheel hub 30, therefore, it is possible to effectively prevent tire 40 from being tilted from wheel hub 30
Situation, i.e. between tire 40 and wheel hub 30 formed gap situation.Its result is that can effectively prevent tire 40 from wheel
Situation about being come off on hub 30.
In addition, the abrasion of tire 40 is most also easy to produce in the opening position opposed with interior side rib 39 of tire base 45.Moreover, work as
When the opening position of tire base 45 generates abrasion, in the position opposed with interior side rib 39 of the ground plane 41 of tire 40
Place, it may appear that the bar shaped extended on circumferencial direction dc.The user of perambulator 10 can judge to take turns by whetheing there is the bar shaped
Whether tire 40 has an abrasion, and wheel 20 can be changed appropriate in the period of.That is, according to the wheel 20 of present embodiment,
The index related to the replacing period of wheel 20 can be provided.
In addition, according to present embodiment, wheel hub 30 also has an outer ribs 37 of a pair of ring-types, and the outer ribs 37 are from base portion
35, the opening position in outside on the axis directions of the both parts of a pair of inside rib 39, to the protruding outside of radial direction dr,
And extend on circumferencial direction dc.Moreover, the projecting height from base portion 35 along radial direction laterally of interior side rib 39, with outside
Rib 37 compared from base portion 35 along the projecting height of radial direction laterally and it is higher.Due to being also set up in addition to interior side rib 39
Outer ribs 37, so as in the opening position opposed with interior side rib 39, and in the opening position opposed with outer ribs 37, it can stablize
Ground supports tire base 45, so as to stably maintain towards radial direction dr outside as the tire base 45 of convex
Overall profile.
In addition, according to present embodiment, Medial extrusion 49 is configured in, the rib (outside being arranged on tire base 45
Rib 37 and interior side rib 39) between two ribs adjacent on axis direction da, be in the example shown in the series of figures a pair of inside rib 39
Between.Therefore, by the engaging with a pair of ribs of Medial extrusion 49, so as to effectively prevent between wheel hub 30 and tire 40
Staggering in the axial direction.
In addition, according to present embodiment, the outer ribs 37 and inner side of the tire base 45 of tire 40 on axis direction da
Between rib 39, separated with the base portion 35 of wheel hub 30.Moreover, the Medial extrusion 49 of tire 40 also divides with the base portion 35 of wheel hub 30
From its result is that tire 40 is overall to be separated on radial direction dr with wheel hub 30.According to this wheel 20, due to tire 40
Tire base 45 is bent between the outer ribs 37 of wheel hub 30 and interior side rib 39, and due to tire base 45 and Medial extrusion 49
Bent between a pair of inside rib 39 of wheel hub 30, and then the interior side rib 39 of wheel hub 30 is bent, therefore, even if tire base 45
Thinner thickness, the shock absorption of sufficient impact absorbency and abundance can be also assigned to wheel 20.
In addition, Medial extrusion 49 is configured to, in the co-operating of the convergent force with tire base 45, tire is prevented
40 staggering relative to the da in the axial direction of wheel hub 30.Therefore, in the wheel 20 of perambulator, the height of Medial extrusion 49
Degree needs are heightened untill base portion 35 is touched.Furthermore, it is possible to make the projecting height from tire base 45 of Medial extrusion 49
It is relatively low compared with the thickness of tire base 45.Thus, as long as the overhang from tire base 45 of Medial extrusion 49 is smaller,
Just it can further shorten the curring time of tire 40, and can further improve the dimensional accuracy of tire 40.
In addition, in the present embodiment, tire 40 is whole on axis direction da in the state of wheel hub 30 is installed in
By along the circumferential direction dc tensile stress in individual region.It is steady according to this wheel 20, the installment state of tire 40 to wheel hub 30
It is fixed.Thereby, it is possible to effectively prevent situation that tire 40 comes off from wheel hub 30.
In addition, in the present embodiment, in the state of tire 40 is installed in wheel hub 30, the axis side of tire base 45
It is located to the both ends 45a on da, radial direction is leaned on compared with the medial extremity 49a on radial direction dr of Medial extrusion 49
The opening position of dr inner side.According to this wheel 20, can effectively prevent end 45a on the axis direction da of tire 40 from
Wheel hub 30 opens, and thereby, it is possible to stably avoid the situation that tire 40 comes off from wheel hub 30.
In addition, in the present embodiment, as clearly illustrating in figure 3, the tire base 45 on axis direction da
End 45a be located at, compared with the both ends 35a of the base portion 35 on axis direction da, by the position in the outside on axis direction da
Put place.Therefore, even if being impacted by the outside on axis direction da, tire 40 can also absorb.Especially in this implementation
In mode, because the outer ribs 37 supported to tire base 45 are arranged on the end 35a of base portion 45, therefore can be steady
Surely the optional position relation on the axis direction da between the end 45a of tire base 45 and the end 35a of base portion 35 is maintained.
Furthermore it is possible to numerous variations are carried out to an embodiment discussed above.Hereinafter, change example to one to enter
Row explanation.
Although for example, in above described embodiment, show that outer ribs 37 are arranged at the axis side of base portion 35
To the example of the opening position at da both ends, but it is not limited to this.Outer ribs 37 can also be configured in, base portion 35 from its
The both ends opening position that da somewhat staggers to inner side in the axial direction.
Although in addition, in above described embodiment, show outer ribs 37 and interior side rib 39 from radial direction
The example that base portion 35 parallel dr extends, but it is not limited to this.One in outer ribs 37 and interior side rib 39 can also be made
Above along the inclined direction relative to radial direction dr, extend from base portion 35.In addition, in Fig. 3 section, outer ribs 37
And interior side rib 39 need not linearly protrude from base portion 35, such as can also bend.
In addition, though in above described embodiment, show that to be provided with one on the base portion 35 of wheel hub 30 external
The example of side rib 37 and a pair of inside rib 39, but this is not limited to, for example, it is also possible to be provided with from base portion 35 to radial direction
Dr more ribs protruding outside.In addition, more ribs can both be extended with along the circumferential direction dc with ring-type, can also edge
Circumferencial direction is intermittently set.
In addition, though in above described embodiment, show wheel hub 30 base portion 35 be formed as with axis side
The flat example that the mode parallel to da extends, but it is not limited to this.For example, base portion 35 can also be bent.
In addition, though in above described embodiment, show the tire base 45 of tire 40 with approximately fixed
Thickness example, but be not limited to this, for example, it is also possible to make thickness in the axial direction da and change.
In addition, though in above described embodiment, show tire 40 on radial direction dr with wheel hub 30
The example that base portion 35 separates, but it is not limited to this.For example, it is also possible to only make the both ends 45a of tire 40 and the base of wheel hub 30
Portion 35 contacts.
In addition, though in above described embodiment, show Medial extrusion 49 along the circumferential direction dc with ring-type
The example of extension, but it is not limited to this.For example, it is also possible in intermittently being set in a manner of interval in a circumferential direction
Side protuberance 49.
Although moreover, in above described embodiment, show and extend into Medial extrusion 49 in one pair
Example between side rib 39, but it is not limited to this.It is for instance possible to use following structure, i.e. by Medial extrusion 49 with extension
The mode entered between any two rib to adjoin each other, is arranged on tire base 45.For example, it is also possible to using following knot
Structure, i.e. a pair of inside protuberance 49 is set on tire base 45, and makes an inner side in a pair of inside protuberance 49 prominent
Portion 49 is configured at, and between the outer ribs 37 of axis direction da side and interior side rib 39, and protrudes the inner side of opposite side
Portion 49 is configured between the outer ribs 37 of the opposite side positioned at axis direction da and interior side rib 39.
In addition, though in above described embodiment, show that one of the cross sectional shape of Medial extrusion 49 is shown
Example, but the cross sectional shape of Medial extrusion 49 can be that triangle or quadrangle etc. are variously-shaped.
In addition, as an example using tire 40 and the perambulator 10 of wheel 20, exemplified with the perambulator shown in Fig. 1
10.Perambulator 10 shown in Fig. 1 can fold, so that the miniaturization in its fore-and-aft direction and short transverse.It is but and unlimited
Due to Fig. 1 example, for example, it is also possible to form perambulator 10 as follows, i.e. such as institute in Japanese Unexamined Patent Publication 2011-148454
Disclosed perambulator is such, after being folded so as to be minimized on fore-and-aft direction, further folds and makes width
Miniaturization.In addition, the perambulator 10 shown in Fig. 1 can be configured to, lever can overleaf urge truck position (rear position) with
The structure swung between opposed trolley position (anterior position).However, perambulator 10 can also be configured to, lever is consolidated
It is scheduled at rear position, and the structure that can not be swung from back side trolley position.
Claims (13)
1. a kind of infant car wheel, it in a manner of rotation axis pivots about can be kept, the baby
Automobile-used wheel possesses：
Wheel hub, it has the base portion of ring-type and the interior side rib of a pair of ring-types, and the base portion is centered on the rotation axis
Extend on circumferencial direction, the interior side rib from the base portion along the axis direction parallel to the rotation axis and with institute
The both ends of base portion are stated compared to opening position in the inner part, to the protruding outside of the radial direction centered on the rotation axis,
And extend along the circumferencial direction；
Tire, it is installed on the outside of the radial direction on the wheel hub；
The tire has the tire base and Medial extrusion of ring-type, and the tire base is at least through the pair of inner side
Rib and be supported by, so as on the section parallel with the axis direction and the radial direction to the outer of the radial direction
Lateral bend extends into convex, and along the circumferencial direction；The Medial extrusion is from the tire base to the radius side
To inner side it is prominent, and can engage with the interior side rib,
The surface in the outside of the radial direction of the tire base forms ground plane.
2. infant car wheel as claimed in claim 1, wherein,
The wheel hub also has the outer ribs of a pair of ring-types, and the outer ribs are from the base portion on the axis direction
Opening position in two outsides of the interior side rib of the pair of ring-type, to the protruding outside of the radial direction, and along the circle
Circumferential direction extends；
The projecting height from the base portion along the radial direction laterally of the interior side rib, with the outer ribs from described
The height that base portion protrudes laterally along the radial direction is compared and higher.
3. infant car wheel as claimed in claim 2, wherein,
The outer ribs are configured in the opening position of the end on the axis direction of the base portion.
4. infant car wheel as claimed in claim 2, wherein,
The tire base of the tire, between the outer ribs and the interior side rib on the axis direction with it is described
The base portion separation of wheel hub.
5. infant car wheel as claimed in claim 1, wherein,
The Medial extrusion of the tire is located at, on the axis direction between adjacent any two rib.
6. infant car wheel as claimed in claim 1, wherein,
The Medial extrusion of the tire between the pair of interior side rib,
The Medial extrusion of the tire, the base portion between the pair of interior side rib on the axis direction with the wheel hub
Separation.
7. infant car wheel as claimed in claim 1, wherein,
The tire separates with the base portion of the wheel hub.
8. infant car wheel as claimed in claim 1, wherein,
The projecting height from the tire base of the Medial extrusion, it is relatively low compared with the thickness of the tire base.
9. infant car wheel as claimed in claim 1, wherein,
The tire is in the state of being installed on the wheel hub, by direction in the whole region on the axis direction
The tensile stress of the circumferencial direction.
10. infant car wheel as claimed in claim 1, wherein,
In the state of the tire is installed on the wheel hub, the both ends on the axis direction of the tire base
It is located at, the position of the inner side of the radial direction is leaned on compared with the medial extremity on the radial direction of the Medial extrusion
Place.
11. infant car wheel as claimed in claim 1, wherein,
The end of the tire base is located at, the opening position in the outside on the axis direction at the both ends of the base portion.
12. infant car wheel as claimed in claim 1, wherein,
The base portion of the wheel hub extends parallel to the axis direction.
13. a kind of perambulator, possesses the infant car wheel described in any one in claim 1 to 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013096592A JP6169407B2 (en) | 2013-05-01 | 2013-05-01 | Pram wheels and prams |
| JP2013-096592 | 2013-05-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104129226A CN104129226A (en) | 2014-11-05 |
| CN104129226B true CN104129226B (en) | 2018-01-19 |
Family
ID=51802189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410178037.3A Expired - Fee Related CN104129226B (en) | 2013-05-01 | 2014-04-29 | Infant car wheel and perambulator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6169407B2 (en) |
| CN (1) | CN104129226B (en) |
| TW (1) | TWI602715B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7256673B2 (en) | 2019-04-11 | 2023-04-12 | シャープ株式会社 | electric cooker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2223200A1 (en) * | 1972-05-12 | 1973-11-22 | Schulte & Co Kugelfab | WHEEL ASSEMBLED FROM SEVERAL PRE-FABRICATED COMPONENTS |
| US4549592A (en) * | 1981-12-07 | 1985-10-29 | Paul Vom Stein & Co. | Roller for moving equipment, furniture or the like |
| CN2422159Y (en) * | 2000-03-28 | 2001-03-07 | 刘金成 | Castor with hollow hub |
| CN200984944Y (en) * | 2006-12-25 | 2007-12-05 | 苏州威凯儿童用品有限公司 | Shallow wheel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51162403U (en) * | 1975-06-18 | 1976-12-24 | ||
| US20040012247A1 (en) * | 2002-07-16 | 2004-01-22 | Shih-Yuan Lin | Wheel assembly for child bicycles |
| DE102004020072A1 (en) * | 2004-04-24 | 2005-11-17 | Tente Gmbh & Co. Kg | Impeller of a roller such as castor or castor |
| JP3137785U (en) * | 2007-09-27 | 2007-12-06 | ビューティフル ラゲッジ マニュファクチュアリング カンパニー リミテッド | Wheel equipment |
| CN105667565B (en) * | 2011-11-01 | 2018-01-30 | 康贝株式会社 | The wheel assembly of trolley |
-
2013
- 2013-05-01 JP JP2013096592A patent/JP6169407B2/en not_active Expired - Fee Related
-
2014
- 2014-03-28 TW TW103111770A patent/TWI602715B/en not_active IP Right Cessation
- 2014-04-29 CN CN201410178037.3A patent/CN104129226B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2223200A1 (en) * | 1972-05-12 | 1973-11-22 | Schulte & Co Kugelfab | WHEEL ASSEMBLED FROM SEVERAL PRE-FABRICATED COMPONENTS |
| US4549592A (en) * | 1981-12-07 | 1985-10-29 | Paul Vom Stein & Co. | Roller for moving equipment, furniture or the like |
| CN2422159Y (en) * | 2000-03-28 | 2001-03-07 | 刘金成 | Castor with hollow hub |
| CN200984944Y (en) * | 2006-12-25 | 2007-12-05 | 苏州威凯儿童用品有限公司 | Shallow wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI602715B (en) | 2017-10-21 |
| JP6169407B2 (en) | 2017-07-26 |
| TW201446556A (en) | 2014-12-16 |
| JP2014218100A (en) | 2014-11-20 |
| CN104129226A (en) | 2014-11-05 |
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