CN201158274Y

CN201158274Y - Automatic forwards and backwards orienting mechanism for wheel

Info

Publication number: CN201158274Y
Application number: CNU2008200026533U
Authority: CN
Inventors: 陈舜民; 李如意
Original assignee: Wonderland Nurserygoods Co Ltd Taiwan
Current assignee: Wonderland Nurserygoods Co Ltd Hong Kong; Wonderland Nurserygoods Co Ltd Taiwan
Priority date: 2008-02-04
Filing date: 2008-02-04
Publication date: 2008-12-03
Anticipated expiration: 2018-02-04

Abstract

An automatic forward and backward orientation mechanism for wheels is characterized in that the orientation mechanism comprises a fixed base, a rotary base, an orientation pedal, a damping spring and a wheel seat. A pair of facing grooves are arranged on the lower edge of the fixed base and are constructed to rotate in the upper part of the rotary base relative to the rotary base. The lower part of the rotary base can accommodate the orientation pedal and the wheel seat. The rotary base, the orientation pedal and the wheel seal are buckled with each other through a clamp connector; the damping spring is arranged between the rotary base and the wheel seat; and the orientation pedal is designed to move between a locking device and an unlocking device. In the locking device, the front hook part of the orientation pedal can enter one of the grooves of the fixed base to prevent rotation of the fixed base relative to the rotary base, thus achieving orientation function. In the unlocking device, the front hook part of the orientation pedal is released from the groove of the fixed base, so that the rotary base can rotate relative to the fixed base.

Description

Wheel is front and back attitude reference device automatically

Technical field

The relevant a kind of wheel of the utility model automatically before and after attitude reference device, particularly a kind of wheel self-orientation mechanism that is used for infant carrier device.

Background technology

In having the wheel body structure of spinfunction, the function that provides wheel body can have rotation and fixed-direction simultaneously when advancing is provided, regular meeting sets up attitude reference device on the wheel body structure.

Attitude reference device can divide into general attitude reference device and self-orientation mechanism on operating mode.Both discrepancys are that general in design attitude reference device of self-orientation mechanism provides auxiliary function design, make more convenient operation of user.On common promote functional, self-orientation mechanism is except when the positioning action, can provide the elasticity auxiliary force allow outside the user is easier to attitude reference device located, still there is the design meeting that aforementioned locate mode is further simplified, allow the user can operate detent mechanism at any time, and needn't be specially earlier behind the position with wheel body direction aligned orientation mechanism, could wheel body is in addition directed.So operating mode more can provide the user at operational convenience, and this mode is " self-orientation mechanism ".

The utility model content

The purpose of this utility model provides a kind of wheel front and back attitude reference device automatically, the locate mode of wheel is more simplified, and then made the user more convenient in operation.

For achieving the above object, the utility model provides a kind of wheel front and back attitude reference device automatically, its characteristics are for comprising permanent seat, rotary seat, directed pedal and wheel seat, and this permanent seat is provided with a pair of opposed facing groove at lower edge, this rotary seat rotationally with this permanent seat socket; This orientation pedal and this wheel seat are articulated in this rotary seat; Wherein, this orientation pedal can move between a latched position and a unlocking position, and when this latched position, this orientation pedal is sticked in a wherein groove of this permanent seat, and when this unlocking position, this orientation pedal then no longer engages the groove of arbitrary this permanent seat.

The utility model also provides a kind of automatic front and back of wheel attitude reference device that is used for perambulator, it comprises a permanent seat, one rotary seat, it is articulated in this permanent seat rotationally, an one directed pedal and a wheel seat that is connected between wheel and the rotary seat, its characteristics are: this permanent seat is provided with a plurality of grooves at lower edge; And should the orientation pedal being articulated in this wheel seat and the one end is an engagement section that can engage with this groove, the other end is that this engagement section of control engages with this groove or breaks away from the operating portion that engages; Wherein, when this engagement section was sticked in this groove, this wheel seat and this rotary seat all can't rotate with respect to this permanent seat.

According to the automatic front and back of wheel of the present utility model attitude reference device, its advantage is: easy operating mode is provided on the one hand, when operation, only need utilize hand or pin, with directed pedal downwards by or upwards carry, can simple and easyly make directed pedal be in release the lock state or lock-out state, realize self-orientating function.On the other hand, wheel of the present utility model front and back attitude reference device automatically utilizes the elastic deformation of plastics can realize self-orientation, and saves the spring that general known automatic attitude reference device uses always.

Description of drawings

Fig. 1 shows the wheel of the present utility model block diagram of front and back attitude reference device cooperation front-wheel installation automatically.

Fig. 2 shows this wheel exploded drawings of front and back attitude reference device automatically.

Fig. 3 shows that self-orientation mechanism is in the release the lock state.

Fig. 4 shows that self-orientation mechanism is in lock-out state.

The specific embodiment

Fig. 1 shows wheel of the present utility model front and back attitude reference device 10 cooperation front-wheels 80, for example block diagram of the front-wheel of perambulator installation automatically.Fig. 2 shows this wheel exploded drawings of front and back attitude reference device 10 automatically.Comprise permanent seat 11, rotary seat 21, directed pedal 31, shock-proof spring 41 and wheel seat 51 according to the automatic front and back of wheel of the present utility model attitude reference device 10 primary members.Permanent seat 11 is made of upper fixed seat 12 that presents hollow cylindrical body and below permanent seat 13.The diameter of upper fixed seat 12 is the diameters greater than below permanent seat 13, and below permanent seat 13 is provided with a pair of diameter two ends and the opposed facing positioning groove 14 (Fig. 2 only shows one) of being at lower edge.

Rotary seat 21 is roughly the saddle pedestal of a hollow, is made of the cylindrical shell 22 of a top and the oblong-shaped pedestal 23 of a below.

The place ahead of rotary seat 21 oblong-shaped pedestals 23 is provided with an elongated open 24, enters location (details will in hereinafter detailed description) for directed pedal 31 through this; Respectively offer a hole 25 in addition in both sides, run through the location for rivet 26.Oblong-shaped pedestal 23 be provided with in the wings one stretch prominent block 27 (referring to Fig. 3) downwards can be for being nested with on it of shock-proof spring 41 parts.

The cylindrical shell 22 of rotary seat 21 is an opening in top end, just can hold below permanent seat 13, and permanent seat 11 can carry out socket with rotary seat 21, but make rotary seat 21 relative fixed seats 11 freely rotate.As shown in Figure 3, cylindrical shell 22 is sealing in bottom end, and cuts out a draw-in groove 28 in the side away from elongated open 24, and the function of this draw-in groove 28 will be described in detail in the back.

Wheel seat 51 is roughly the triangle pedestal of a hollow, on the block 27 corresponding positions of pedestal rear and rotary seat 21, be provided with one and extend upwardly prominent block 52 (referring to Fig. 3), can supply being nested with of shock-proof spring 41 parts, shock-proof spring 41 is interposed in this attitude reference device by block 27 and block 52.Wheel seat 51 in addition forwardly both sides respectively be drilled with a hole 53.

Wheel seat 51 is inserted in by rotary seat 21 belows, after the hole 25 of its hole 53 and rotary seat 21 aligns, utilizes rivet 26 to pass the hole 53 of wheel seat 51 and the hole 25 of rotary seat 21 simultaneously, with in addition combination of wheel seat 51 and rotary seat 21.

Directed pedal 31 mainly comprises two parts, and the operating portion 32 that promptly roughly is " fourth " font reaches the engagement section 33 that roughly is " V " font.As mentioned before, directed pedal 31 stretches into rotary seat 21 inside with the opening 24 of its engagement section 33 through rotary seat 21.The engagement section 33 that roughly is " V " font is provided with a hole 34 in the corner in the central, can run through for rivet 26.Therefore, utilize same rivet 26 rotary seat 21, wheel seat 51 and directed pedal 31 can be combined.

See also Fig. 3 and Fig. 4 and assemble the manner of execution of the self-orientation mechanism 10 that finishes with rotary seat 21, directed pedal 31, shock-proof spring 41, wheel seat 51 and rivet 26 with further understanding.These accompanying drawings show the mutual configuration after rotary seat 21, wheel seat 51, shock-proof spring 41 and directed pedal 31 combine and the details of moving mutually more clearly.

Fig. 3 shows that self-orientation mechanism 10 is in the release the lock state, and this moment, directed pedal 31 was thrown off the positioning groove 14 of permanent seat 11, and therefore, but rotary seat 21 relative fixed seats 11 freely rotate.

Fig. 4 shows that self-orientation mechanism 10 is in lock-out state.When the user need switch to the lock-out state of Fig. 4 from the release the lock state of Fig. 3, user's only with hand or pin are pressed directed pedal 31 downwards, make " fourth " font operating portion 32 be displaced downwardly to the lower position, the engagement section of directed pedal 33 by pivoting towards permanent seat 11 against.When if mal-alignment positioning groove 14 is gone back in the engagement section 33 of directed pedal, engagement section 33 is resisted against earlier on the outer wall of permanent seat 11 at stressed pivot, should understand first local deformation by the orientation pedal this moment, after in case arbitrary positioning groove 14 is aimed in engagement section 33, directed pedal makes engagement section 33 enter positioning groove 14 through the draw-in groove 28 of rotary seat 21 automatically under the restoring force effect of replying local deformation, and realizes the self-orientation function.Further, when desire with attitude reference device 10 when the release the lock state switches to lock-out state, can be with operating portion 32 to moving down, hook together up to the location hook 35 (as shown in Fig. 2 and Fig. 3) of operating portion 32 belows and the lower edge 29 of rotary seat opening 24, at this moment, as previously mentioned, after in case arbitrary positioning groove 14 is aimed in engagement section 33, engagement section 33 promptly enters positioning groove 14 through the draw-in groove 28 of rotary seat 21 automatically, finishes self-orientation, and warming-up exercise especially.

When desiring unlocking state, user's only with hand or pin upwards lift directed pedal 31, make and move to upper limit position this moment location hook 35 on " fourth " font operating portion 32 and also break away from simultaneously and the hooking together of the lower edge 29 of opening 24, then directed pedal 31 is promptly deviate from the positioning groove 14 of permanent seat 11, and gets back to release the lock state shown in Figure 3.At this moment, rotary seat 21 can freely rotate by relative fixed seat 11.

Directed pedal 31 better onies are made by the elasticity of plastics member that the object materials characteristic has pliability and a recovery, therefore, utilize the elastic deformation of plastics can realize self-orientation.

Above-mentioned explanation is only disclosing preferred embodiment of the present utility model.In addition, can make various changes that are equal to or replacement at the utility model embodiment mentioned above owing to be skillful in the personage of present technique, so the utility model should not be limited to described practical structures of the foregoing description or method.Therefore, any change that is equal to or modification should be considered as still being covered by in the category that the application's claim defined.

Claims

A wheel automatically before and after attitude reference device, it is characterized by and comprise permanent seat, rotary seat, directed pedal and wheel seat, this permanent seat is provided with a pair of opposed facing groove at lower edge, this rotary seat rotationally with this permanent seat socket; This orientation pedal and this wheel seat are articulated in this rotary seat; Wherein, this orientation pedal can move between a latched position and a unlocking position, and when this latched position, this orientation pedal is sticked in a wherein groove of this permanent seat, and when this unlocking position, this orientation pedal then no longer engages the groove of arbitrary this permanent seat.
2. wheel as claimed in claim 1 is front and back attitude reference device automatically, it is characterized by this permanent seat is made of upper fixed seat that presents hollow cylindrical body and below permanent seat, the diameter of this upper fixed seat is greater than the diameter of below permanent seat, and this is the lower edge of being located at this below permanent seat to groove, this upper section of this rotary seat can hold this below permanent seat, makes this rotary seat freely to rotate relative to this permanent seat.
3. wheel as claimed in claim 2 is front and back attitude reference device automatically, it is characterized by this rotary seat is the saddle pedestal of a hollow, constitute by a cylindrical shell and an oblong-shaped pedestal, this oblong-shaped pedestal is provided with an opening, enter and be articulated in this oblong-shaped pedestal for this orientation pedal, should can engage with a groove of this permanent seat by the orientation pedal with facility with this rotary seat is corresponding.
As each described wheel of above-mentioned claim automatically before and after attitude reference device, it is characterized by this orientation pedal and comprise an engagement section and an operating portion, this operating portion below also comprises a location hook, the location pedal can be hooked together when latched position be fixed in this rotary seat.
5. wheel as claimed in claim 4 automatically before and after attitude reference device, the engagement section that it is characterized by this orientation pedal is sticked in a groove of this permanent seat, and comprises an elastic arm and be connected between this engagement section and this operating portion.
6. wheel as claimed in claim 1 is front and back attitude reference device automatically, it is characterized by this orientation pedal and be articulated in this wheel seat with an axostylus axostyle, and this wheel seat also is connected with this rotary seat with this axostylus axostyle.
7. wheel as claimed in claim 1 is front and back attitude reference device automatically, it is characterized by between this rotary seat and this wheel seat to have a shock-proof spring.
8. wheel as claimed in claim 1 automatically before and after attitude reference device, it is characterized by the housing that this rotary seat is a saddle, have between this housing and this wheel seat space can be ccontaining should the orientation pedal.
A wheel that is used for perambulator automatically before and after attitude reference device, it comprises a permanent seat, a rotary seat, it is articulated in this permanent seat rotationally, a directed pedal and a wheel seat that is connected between wheel and the rotary seat is characterized by:

This permanent seat is provided with a plurality of grooves at lower edge; And

This orientation pedal is articulated in this wheel seat and the one end is an engagement section that can engage with this groove, and the other end is this engagement section of control engages or break away from engaging with this groove a operating portion;

Wherein, when this engagement section was sticked in this groove, this wheel seat and this rotary seat all can't rotate with respect to this permanent seat.
10. the wheel that is used for perambulator as claimed in claim 9 automatically before and after attitude reference device, it is characterized by this groove and be two and lay respectively at this permanent seat lower edge and opposed facing groove.
11. the wheel that is used for perambulator as claimed in claim 9 automatically before and after attitude reference device, it is characterized by and comprise an elastic arm and be connected between this engagement section and this operating portion.
12. the automatic front and back of the wheel attitude reference device that is used for perambulator as claimed in claim 9 it is characterized by this orientation pedal and be articulated in this wheel seat with an axostylus axostyle, and this wheel seat also is connected with this rotary seat with this axostylus axostyle.
13. the wheel that is used for perambulator as claimed in claim 9 automatically before and after attitude reference device, it is characterized by and comprise a shock-proof spring and be connected between this rotary seat and this wheel seat.
14. the automatic front and back of the wheel attitude reference device that is used for perambulator as claimed in claim 9 is characterized by this orientation pedal and is arranged between this rotary seat and this wheel seat.
15. the automatic front and back of the wheel attitude reference device that is used for perambulator as claimed in claim 9 is characterized by the housing that this rotary seat comprises a saddle, wherein should just be placed between this housing and this wheel seat by the orientation pedal.
16. the wheel that is used for perambulator as claimed in claim 9 automatically before and after attitude reference device, it is characterized by this orientation pedal is a flexible pedal, when operating portion was stressed, this flexible pedal deformable was finished with this groove up to the engagement section and to be engaged.
17. the automatic front and back of the wheel attitude reference device that is used for perambulator as claimed in claim 9 is characterized by this operating portion below and also comprises a location hook, the location pedal can be hooked together when latched position be fixed in this rotary seat.