CN101428667B - Squeeze-proof steering structure of carriage for children - Google Patents
Squeeze-proof steering structure of carriage for children Download PDFInfo
- Publication number
- CN101428667B CN101428667B CN2008101627024A CN200810162702A CN101428667B CN 101428667 B CN101428667 B CN 101428667B CN 2008101627024 A CN2008101627024 A CN 2008101627024A CN 200810162702 A CN200810162702 A CN 200810162702A CN 101428667 B CN101428667 B CN 101428667B
- Authority
- CN
- China
- Prior art keywords
- turn
- driving lever
- children
- proof
- carriage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Toys (AREA)
Abstract
An extrusion-proof and clapping-proof steering structure belongs to the technical field of baby carriages, and comprises two suspension front wheel shafts (18), two steering fork-levers (19), a steering lever (21), a front frame (20) and an extrusion-proof and clapping-proof component; the suspension front wheel shafts (18) and one end of the steering fork-levers (19) are hinged and fixed with two ends of the front frame (20) in the bilateral symmetry manner; the other end of the two steering fork-levers (19) are symmetrically hinged with the left and the right ends of the steering lever (21); a poke groove is arranged in the middle of the steering lever (21); an eccentric shaft which is inserted into the poke groove is controlled by the baby carriage mechanism and can poke the steering lever move to the left and right; the two steering fork-levers (1), the steering lever (21) and the front frame (20) form a link mechanism of a parallelogram; the extrusion-proof and clapping-proof component is filled in a medial angle of the fork-levers and the steering lever; and the minimal medial crevice is larger than 13mm when the parallelogram swings from left to right. The invention guarantees that the exposed structure does not result in extrusion and clapping with a simple structure, fulfills the international toy safety standard, and reduces the manufacture cost.
Description
Technical field
The invention belongs to the child car technical field, the dress that is specifically related to a kind of carriage for children is suitable for not four-wheel such as osed top such as kart carriage for children of physical constructions such as steerage gear to structure.
Background technology
Children are when using kart etc. to expose the vehicle of structure, there is big potential safety hazard, angle between some rod members crushes children easily, especially in the steering procedure, the needs that turn to of four-wheel perambulator are realized the synchronous parallel steer of front-wheel, general employing bar linkage structure, but the angle that bar linkage structure very easily produces when turning between the rod member is easy to generate crowded folder, shears, and child safety is damaged.
Therefore the safety rate of carriage for children is had the requirement that exposes structure of easy injury children limbs such as preventing crowded folder, shearing both at home and abroad, general free gap can not be in the scope of 5-13mm; To squeeze folder, shear in order to prevent in the prior art, often adopt the structure with the associated mechanisms complete closed in the design of carriage for children, the cost that expends is very high.
Summary of the invention
The present invention seeks in order to overcome the defective of above-mentioned prior art, provide a kind of simple in structure, safe and reliable, the squeeze-proof steering structure of carriage for children that cost reduces.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of squeeze-proof steering structure of carriage for children, it is characterized in that comprising two suspension type fronts wheel spindle, two turn to shift fork, turn to driving lever, front vehicle frame and anti-extrusion clamp assembly, the suspension type front wheel spindle with turn to an end of shift fork hinged, left-right symmetric is fixed in the two ends of front vehicle frame, two turn to the other end symmetry of shift fork to be articulated in turns to two ends, the driving lever left and right sides, in the middle of turning to driving lever allocating slot is arranged, be inserted with in the allocating slot and controlled by the carriage for children steering unit, stir the eccentric shaft that turns to the driving lever sway, two turn to shift fork, turn to driving lever and front vehicle frame to constitute a parallelogram linkage, described anti-extrusion clamp assembly is filled up in turning to shift fork and the inboard angle that turns to driving lever, when parallelogram swung, its inboard minimum crack was greater than 13mm.
Anti-extrusion steering structure of the present invention can be realized the front-wheel parallel steer with simple parallelogram connection-rod, and the anti-extrusion structure is arranged at the inboard angle of parallelogram and is beneficial to multiple design, and easy realization simple in structure.
Described anti-extrusion clamp assembly is to turn to the two ends of driving lever or/and turn to shift fork and turn to driving lever pivotally attached one end, it is one group of overlapping shield, symmetry is located at two angles of parallelogram inboard, and is maximum or hour, shield is overlapping all the time at the inboard angle of parallelogram.
Further, above-mentioned shield is fan-shaped shield.
The present invention also comprises turning to of front-wheel is controlled at limiting steering structure in the certain angle scope.
Described limiting steering structure is arranged on the fan-shaped sight shield, for circular arc position-limited trough and the locating dowel pin of width less than 5mm, both realized turning to control, guaranteed child safety again, the dangerous crack that 5-13mm enters easily for children point, international toy safety standard-required is avoided this intersegmental crack.
Also can the limiting steering structure be located on joystick outer tube or the interior bar.
The described driving lever that turns to is the curved bar that can regulate length, end bent.Rely on end bent to avoid dangerous crack or gap, and accurately adjust steering angle.
The present invention compared to existing technology, beneficial effect mainly shows and is simple in structure, it is dangerous and realize that easily save exterior protective case, the perambulator cost reduces that the anti-pinch hand unit that is arranged at the parallelogram connection-rod structure can avoid that children are extruded.
Description of drawings
The angle scheme drawing that Figure 1A and Figure 1B easily push, shear for existing perambulator steering structure, Figure 1A keeps straight on, and Figure 1B turns to.
Fig. 2 A and Fig. 2 B are steering structure scheme drawing of the present invention, and Fig. 2 A is structural representation when the inboard angle of parallelogram is positioned at minimum crack, the structural representation when Fig. 2 B is front-wheel craspedodrome direction.
Fig. 3 is the structural representation that the limiting steering structure of second embodiment of the invention is located at control lever, and Fig. 3 A is an inner sleeve, and Fig. 3 B is an outer tube.
Fig. 4 A and Fig. 4 B are that to turn to driving lever in the third embodiment of the invention be the structural representation that can regulate the curved bar of length, and Fig. 4 A keeps straight on, and Fig. 4 B turns to.
Description of reference numerals: suspension type front wheel spindle 18, two turn to shift fork 19, turn to driving lever 21, front vehicle frame 20, anti-extrusion clamp assembly, fan-shaped shield 24, circular arc position-limited trough 22, locating dowel pin 23, outer tube 34, inner sleeve 25, spacing screw 26, spacing waist hole 27, stop screw 28, curved bar outer tube 29, curved bar inner sleeve 30.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
The squeeze-proof steering structure of a kind of four-wheel carriage for children special use as shown in the figure, first preferred embodiment comprise suspension type front wheel spindle 18, turn to driving lever 21, turn to shift fork 19, anti-extrusion clamp assembly and limiting steering structure;
Two groups of suspension type fronts wheel spindle 18 with turn to an end of shift fork 19 hinged, left-right symmetric is fixed in the two ends of front vehicle frame 20, two turn to the other end symmetry of shift fork 19 to be articulated in turns to two ends, driving lever 21 left and right sides, and two turn to shift fork 19, turn to driving lever 21 and front vehicle frame 20 to constitute a parallelogram linkage.
In the middle of turning to driving lever 21 allocating slot is arranged, be inserted with eccentric shaft in the allocating slot, eccentric shaft can be stirred by the control of carriage for children steering unit and is turned to the driving lever sway, anti-extrusion clamp assembly is filled up in turning to shift fork and the inboard angle that turns to driving lever, when parallelogram swung, its inboard minimum crack was greater than 13mm.
Suspension type front wheel spindle 18 is parallel to the ground, and two front-wheels are assemblied on the suspension type front wheel spindle 18 symmetrically, realizes front-wheel parallel steer, the position limiting structure of restricted wheel axial motion on the wheel shaft under steering hardware interlock effect; Turn to shift fork 19 to be connected, can bear load-carrying or, and the centre of gration on the vehicle frame freely rotates the realization front-wheel steering in the horizontal direction perpendicular to ground-surface power with front vehicle frame 20; Turn to driving lever 21 two ends symmetries respectively with about turn to shift fork to be connected, there is allocating slot the centre.Turn to by steering unit control, stir with eccentric shaft and turn to the driving lever sway, drive turns to shift fork to realize turning to.
Anti-extrusion clamp assembly is arranged on the inboard angle that turns to shift fork and turn to driving lever, it is one group of overlapping fan-shaped shield 24, maximum or hour at the inboard angle of parallelogram, fan-shaped shield is overlapping all the time, what change is overlapping angle, and beyond fan-shaped shield circular arc limit, even at the inboard angle of parallelogram hour, minimum crack is still greater than 13mm;
The limiting steering structure can be controlled at turning to of front-wheel in the angular range that needs, present embodiment has designed circular arc position-limited trough 22 and the locating dowel pin 23 of width less than 5mm dexterously on fan-shaped shield, both realized turning to control, guaranteed that again (the dangerous crack that 5-13mm enters easily for children point, international toy safety standard-required is avoided this intersegmental crack to child safety.)。
Embodiment 2
As different from Example 1, present embodiment limiting steering structure is located at control lever, sees Fig. 3, Fig. 3 A and Fig. 3 B,
A spacing screw 26 is set on joystick outer tube 34, a spacing waist hole 27 is set on joystick inner sleeve 25 again, carry out left and right sides limiting steering control by stop screw 28.
Embodiment 3
As different from Example 1, the limiting steering structure do not realize on fan-shaped shield, and is to realize on joystick outer tube and the interior bar at steering unit.
Turn to driving lever 21 also can adopt the curved bar that to regulate length, rely on end bent to avoid dangerous crack or gap, and accurately adjust steering angle.Turning to driving lever 21 is to be combined by curved bar outer tube 29 and curved bar inner sleeve 30, curved bar outer tube 29 two ends are furnished with negative thread, curved bar inner sleeve 30 1 ends are furnished with outside thread one end and are furnished with assembly opening, by curved bar inner sleeve 30 with after the assembling of curved bar outer tube 29 is connected, can utilize screw thread to carry out length adjustment, turn to driving lever 21 to be connected, turn to function thereby finish with turning to shift fork 19 assemblings.Based on spirit of the present invention, this anti-extrusion steering structure also has multiple variation, can turn to shift fork and turn between the driving lever for being fixed in as anti-extrusion clamp assembly, two Rubber Parts that can mutual chimeric slippage, also can be hundred tabs of making of elastomeric material etc., the means that shield can also other equivalent function among the embodiment 1 substitute as the special-shaped sheet of band radian, and all this type of all equivalences change, all should be in the claim of the present patent application.
Claims (6)
1. squeeze-proof steering structure of carriage for children is characterized in that comprising that two suspension type fronts wheel spindle (18), two turn to shift fork (19), turn to driving lever (21), front vehicle frame (20) and anti-extrusion clamp assembly,
Suspension type front wheel spindle (18) with turn to an end of shift fork (19) hinged, left-right symmetric is fixed in the two ends of front vehicle frame (20), two turn to the other end symmetry of shift fork (19) to be articulated in turns to driving lever (21) two ends, the left and right sides, in the middle of turning to driving lever (21) allocating slot is arranged, be inserted with in the allocating slot and controlled by the carriage for children steering unit, stir the eccentric shaft that turns to the driving lever sway, two turn to shift fork (19), turn to driving lever (21) and front vehicle frame (20) to constitute a parallelogram linkage, described anti-extrusion clamp assembly is filled up in turning to shift fork and the inboard angle that turns to driving lever, when parallelogram swung, its inboard minimum crack was greater than 13mm;
Described anti-extrusion clamp assembly is to turn to the two ends of driving lever (21) or/and turn to shift fork (19) and turn to driving lever pivotally attached one end, it is one group of overlapping shield, symmetry is located at two angles of parallelogram inboard, and is maximum or hour, shield is overlapping all the time at the inboard angle of parallelogram.
2. squeeze-proof steering structure of carriage for children according to claim 1 is characterized in that shield is fan-shaped shield.
3. as squeeze-proof steering structure of carriage for children as described in the claim 2, it is characterized in that also comprising turning to of front-wheel is controlled at limiting steering structure in the certain angle scope.
4. as squeeze-proof steering structure of carriage for children as described in the claim 3, it is characterized in that the limiting steering structure is arranged on the fan-shaped sight shield, be circular arc position-limited trough (22) and the locating dowel pin (23) of width less than 5mm.
5. as squeeze-proof steering structure of carriage for children as described in the claim 3, it is characterized in that the limiting steering structure is located on joystick outer tube or the interior bar.
6. as squeeze-proof steering structure of carriage for children as described in the claim 3, it is characterized in that turning to driving lever (21) for can regulate the curved bar of length, end bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101627024A CN101428667B (en) | 2008-11-28 | 2008-11-28 | Squeeze-proof steering structure of carriage for children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101627024A CN101428667B (en) | 2008-11-28 | 2008-11-28 | Squeeze-proof steering structure of carriage for children |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101428667A CN101428667A (en) | 2009-05-13 |
| CN101428667B true CN101428667B (en) | 2010-12-08 |
Family
ID=40644366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101627024A Expired - Fee Related CN101428667B (en) | 2008-11-28 | 2008-11-28 | Squeeze-proof steering structure of carriage for children |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101428667B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552638B (en) * | 2013-09-23 | 2016-08-17 | 平湖市万家乐童车厂 | A kind of baby carrier steering mechanism |
| CN105365976B (en) * | 2015-11-23 | 2018-10-23 | 嘉兴栋马童车有限公司 | A kind of easily manipulation perambulator |
| CN106965891B (en) * | 2016-11-23 | 2019-01-15 | 颜科学 | A kind of recreation vehicle steering structure |
| CN107600269B (en) * | 2017-09-30 | 2022-10-28 | 桂林电子科技大学 | Vehicle body transverse moving wheel side swinging balance vehicle |
| CN109795602A (en) * | 2019-01-22 | 2019-05-24 | 平湖市小明星儿童用品有限公司 | A kind of steering assistance part of perambulator |
| CN111017098B (en) * | 2019-12-18 | 2021-11-16 | 江西赛骑运动器械制造有限公司 | Bidirectional connection joint bearing steering system |
-
2008
- 2008-11-28 CN CN2008101627024A patent/CN101428667B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101428667A (en) | 2009-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101428667B (en) | Squeeze-proof steering structure of carriage for children | |
| CN201670260U (en) | Independent steering device and independent suspension system | |
| EP3072781B1 (en) | Vehicle | |
| CN104401395B (en) | A kind of list based on worm and gear drives four-wheel steering mechanism | |
| CN205022774U (en) | Bassinet front wheel steering mechanism | |
| ITMI20071678A1 (en) | STEERING GROUP OF WHEELS OF AN AXLE OF A VEHICLE | |
| CN201354124Y (en) | Pinch-proof steering structure for child car | |
| US4708363A (en) | Mechanism for limiting angular movement in steering systems for motor vehicles | |
| CN102963410B (en) | Front wheel steering mechanism for baby stroller | |
| CN205149972U (en) | Novel combination formula turns to device | |
| CN2900323Y (en) | Double wheel double driven motorycle | |
| CN202237259U (en) | Double rear-driving model chassis | |
| CN201154749Y (en) | Turning banking type automobile | |
| KR20080058942A (en) | Power train of a five-wheel-drive vehicle | |
| CN208760706U (en) | A kind of steering mechanism and the kart with the steering mechanism | |
| CN209064268U (en) | A kind of child's tricycle | |
| CN204279800U (en) | Be applicable to the steering wheel servo-steering control mechanism of electric children vehicle | |
| KR20140133088A (en) | Steering linkage for independent suspension of the bus | |
| CN205186408U (en) | Take float bassinet mechanism of pivot turn of translation | |
| CN221393681U (en) | Mechanical four-wheel steering system of formula car | |
| CN207389411U (en) | Row rotates motor-car | |
| CN201849528U (en) | Front hinged or articulated steering tractor | |
| CN104002902A (en) | Three-wheel linkage steering mechanism of three-wheel electric sweeper | |
| CN102390461A (en) | Steering transmission device for rhombic automobile | |
| CN203318501U (en) | Baby carrier direction control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20181128 |