CN114103546B - Variable diameter wheel with elastic spoke - Google Patents
Variable diameter wheel with elastic spoke Download PDFInfo
- Publication number
- CN114103546B CN114103546B CN202111511191.4A CN202111511191A CN114103546B CN 114103546 B CN114103546 B CN 114103546B CN 202111511191 A CN202111511191 A CN 202111511191A CN 114103546 B CN114103546 B CN 114103546B
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- CN
- China
- Prior art keywords
- wheel
- spring
- spring plate
- variable diameter
- plate
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 9
- 229910000639 Spring steel Inorganic materials 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
- B60B19/02—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group convertible, e.g. from road wheel to rail wheel; Wheels specially designed for alternative use on road and rail
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B9/00—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces
- B60B9/02—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims
- B60B9/04—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims in leaf form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention discloses a variable diameter wheel with elastic spokes, which comprises a central hub and further comprises: a plurality of spring plates are circumferentially and uniformly distributed around the central hub, and the plate width direction of the spring plates is parallel to the axial direction of the variable diameter wheel; the rubber wheel feet are circumferentially distributed around the central hub, and the number of the rubber wheel feet is equal to that of the spring plates; wherein, every spring board receives radial pressure crooked and its crooked direction and the roll direction that advances of variable diameter wheel are opposite, every spring board one end fixed connection center wheel hub, and every spring board all corresponds two rubber wheel feet, and the spring board wears the inside groove of the preceding rubber wheel foot of joining in marriage relatively movably, and every spring board other end fixed connection is the inside groove of the last rubber wheel foot. The variable diameter wheel (or variable diameter wheel) can solve the contradiction between the good smoothness of the mobile platform on hard road surfaces such as highways and the high trafficability of soft ground surfaces such as deserts and the like, can realize all-region walking, and is a novel non-pneumatic tire with high trafficability and large bearing capacity.
Description
Technical Field
The invention relates to the technical field of wheels, in particular to a variable diameter wheel with elastic spokes.
Background
In order to expand the human range of motion and the exploration, development and utilization of resources and meet the requirements of all-region running, wheels with changeable diameters are focused and researched and developed, such as expandable wheels. The reducing mechanism is a key component, and most of the prior rigid mechanisms have the defects of heavy weight, sealing and lubrication, and elasticity loss. The diameter change of the variable diameter wheel is realized through the flexible diameter-changing mechanism which is developed in the early stage, namely, the flexible unit in the mechanism is deformed to generate movement, so that the problems of abrasion, lubrication, sealing and the like can be avoided, and the variable diameter wheel has the advantages of light weight and vibration reduction. And when the diameter-variable wheel is not changed, the compliant diameter-variable mechanism is a flexible structure. In the past, the flexible unit adopted by the flexible reducing mechanism is a flexible hinge with concentrated flexible characteristics, for example, the invention patent application with publication number of CN101503044 discloses a mechanical-hydraulic linkage reducing wheel carrier suitable for a variable diameter wheel. The shortcomings of the centralized compliant mechanism are mainly manifested in: the mechanism configuration is derived from a rigid mechanism, namely, the rigid hinge is replaced by the flexible hinge, the diameter changing range is limited by the flexible hinge, the configuration range is greatly limited, and after all, the mechanism is only a special condition of softness; in addition, the diameter-variable wheel with the compliant hinge belongs to single-wheel-leg bearing, and when the diameter-variable wheel rolls and walks (especially in an open state), the single wheel leg is mainly bearing stress, so that the force and moment from the ground can be intensively acted on the wheel leg contacting the ground, the stress condition of the compliant hinge in the grounding wheel leg is bad, and the bearing capacity of the diameter-variable wheel is smaller.
Disclosure of Invention
The invention aims to provide a variable diameter wheel with elastic spokes, which can solve the contradiction between the good smoothness of a mobile platform on hard roads such as highways and the high trafficability of soft ground such as deserts and can realize all-region walking.
The purpose of the invention is realized in the following way: a variable diameter wheel with resilient spokes, comprising a central hub, further comprising:
the spring plates are circumferentially and uniformly distributed around the central hub and made of spring steel, the spring plates are long and narrow rectangular plates, and the plate width direction of the spring plates is parallel to the axial direction of the variable diameter wheel;
the rubber wheel legs are circumferentially distributed around the central hub, the sections of the rubber wheel legs are C-shaped, the openings of the rubber wheel legs are radially inward, and the number of the rubber wheel legs is equal to that of the spring plates;
each spring plate is bent under radial pressure, the bending direction of the spring plate is opposite to the forward rolling direction of the variable-diameter wheel, one end of each spring plate is fixedly connected with the central hub, each spring plate corresponds to two rubber wheel feet, the spring plates are correspondingly movably matched with the inner groove of the previous rubber wheel foot, and the other end of each spring plate is fixedly connected with the inner groove of the next rubber wheel foot.
Further, each spring plate is composed of two parts, one part is a corrugated plate structure body connected with the central hub, and the other part is a smooth plate structure body corresponding to the two rubber casters;
the corrugated plate structure of each spring plate includes a plurality of concave portions concave with respect to an outer surface thereof, the corrugated plate structure of the spring plate exhibiting a corrugated shape as viewed from an axial direction of the variable diameter wheel;
the smooth plate structure of each spring plate is relatively movably penetrated with the inner groove of the previous rubber wheel foot, the tail end of the smooth plate structure is fixedly connected with the inner groove of the next rubber wheel foot, and the smooth plate structure of the spring plate is outwards arched when being observed from the axial view of the variable diameter wheel.
Further, each spring plate is also provided with a plurality of mutually parallel and equal-length steel wire ropes which move through all the concave parts along the length direction of the spring plate.
Further, the two ends of the steel wire rope are fixedly connected with terminal limiting sleeves, and the two terminal limiting sleeves respectively lean against the head concave part and the tail concave part of the spring plate.
Further, the inner groove of each rubber wheel foot is fixedly provided with a rigid inner web, the inner web is fixedly provided with an inner mounting frame positioned in the inner groove of the rubber wheel foot, the inner mounting frame is at least rotatably connected with a support pin shaft, the support pin shaft is in rolling contact with the inner surface of the smooth plate structure body of the spring plate, and the axis of the support pin shaft is parallel to the axis of the variable-diameter wheel.
Further, each spring plate is provided with a plurality of end locking pieces, and the smooth plate structure body of each spring plate is fixedly connected with the inner web plate of the inner groove of the later rubber wheel foot through the end locking pieces.
Further, the central hub consists of an inner wheel carrier and an outer wheel shell;
the inner wheel frame is in a wheel-shaped structure and is arranged as a central part of the variable diameter wheel;
the outer wheel shell is of a wheel-shaped structure and is coaxial with the inner wheel frame, the inner diameter of the outer wheel shell is larger than the outer diameter of the inner wheel frame, and a hub inner cavity is formed between the inner peripheral wall of the outer wheel shell and the outer peripheral wall of the inner wheel frame;
the outer wheel casing is characterized in that a plurality of penetrating holes which are uniformly distributed along the circumferential direction, correspond to the spring plates one by one and limit the swing range of the spring plates are formed in the circumferential wall of the outer wheel casing, one end of each spring plate is fixedly connected with the outer circumferential wall of the inner wheel frame, and the spring plates movably penetrate through the penetrating holes.
Further, the spring plate is formed by laminating a plurality of spring steel plates with the same structure and material.
The invention has the beneficial effects that:
1. the device has good bearing capacity in a reducing state, and good flexible deformation capacity when the device rolls on a complex surface, so that the device can roll on the complex surface (the earth surface or other planetary surfaces) smoothly, can adapt to a soft road surface, and increases obstacle crossing capacity;
2. the spring plate is used as an elastic spoke of the diameter-variable wheel, and is used as a flexible unit when the diameter of the diameter-variable wheel is changed, so that the wheel diameter change is realized through the deformation of the spring plate, the problems of sealing, lubrication and the like can be avoided, and the bearing and damping effects can be exerted;
3. in order to ensure the mechanical strength of the spring plate, the spring plate is formed by sticking a plurality of spring steel plates with the same structure and material layer by layer, and in order to ensure the flexible deformation capability of the spring plate, a corrugated plate structure body comprising a plurality of concave parts is arranged on the basis of the original plate-shaped structure of the spring plate, each spring plate is provided with a plurality of steel wire ropes which are mutually parallel, each steel wire rope movably passes through all the concave parts along the length direction of the spring plate, the bending and stretching degree of the spring plate is limited by the steel wire ropes, and the spring plate is prevented from excessively bending and stretching to hinder the walking process of the whole variable-diameter wheel.
Drawings
Fig. 1 is an axial schematic view of the present invention.
Fig. 2 is a cross-sectional view based on the perspective of fig. 1.
Fig. 3 is a schematic perspective view of the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 2.
Detailed Description
The invention will be further described with reference to figures 1-4 and the specific examples. Let the driving forward direction be the front.
As shown in fig. 1-3, a variable diameter wheel with resilient spokes, comprising:
a central hub 1;
the spring plates 2 are uniformly distributed around the circumference of the central hub 1 and form an elastic spoke, the spring plates 2 are made of spring steel, the spring plates 2 are formed by laminating a plurality of spring steel plates with the same structure and material, the projection sizes of any two adjacent spring steel plates are the same, the spring plates 2 can be combined into one spring plate 2 after lamination, the spring plates 2 are long and narrow rectangular plates, and the plate width direction of the spring plates 2 is parallel to the axial direction of the variable diameter wheel;
the plurality of rubber casters 4 which are circumferentially distributed around the central hub 1 and have a C-shaped cross section with openings facing radially inwards are equal in number to the spring plates 2, and the rubber casters 4 are integrally extended in an arc shape.
Wherein, each spring plate 2 one end fixed connection center hub 1, each spring plate 2 receives radial pressure bending and its bending direction is opposite with the roll direction that advances of variable diameter wheel, be equivalent to regard the minor face of spring plate 2 with center hub 1 fixed connection as accurate backward bending, such radial pressure is sourced from rubber wheel foot 4, especially when rubber wheel foot 4 and ground contact, the bending degree of spring plate 2 can increase correspondingly, each spring plate 2 all corresponds two rubber wheel feet 4, spring plate 2 wears the inside groove of the preceding rubber wheel foot 4 with relative activity, the inside groove of the last rubber wheel foot 4 of each spring plate 2 other end fixed connection.
When the vehicle runs on the complex ground, the wheels are opened into rimless wheels, the rubber feet 4 are in a separated state, the rubber feet can reduce rolling resistance by walking, the rubber feet have high trafficability on a soft road surface, the diameter is increased, the obstacle surmounting capability is improved, and the spring plate 2 generates corresponding deformation after being subjected to radial pressure so as to adapt to the soft road surface.
As a preferred solution, each spring plate 2 is composed of two parts, one part is a corrugated plate structure body connected with the central hub 1, and the other part is a smooth plate structure body corresponding to the two rubber casters 4;
the corrugated plate structure of each spring plate 2 includes a plurality of concave portions 2a concave with respect to the outer surface thereof, and the corrugated plate structure of the spring plate 2 is corrugated as viewed from the axial direction of the variable diameter wheel, so that it can have good mechanical strength and flexible deformability;
the smooth plate structure of each spring plate 2 is relatively movably penetrated with the inner groove of the previous rubber wheel leg 4, the tail end of the smooth plate structure is fixedly connected with the inner groove of the next rubber wheel leg 4, and the smooth plate structure of the spring plate 2 is outwards arched when seen from the axial view of the variable diameter wheel.
Preferably, each spring plate 2 is further provided with a plurality of mutually parallel and equal length wire ropes 3, the wire ropes 3 being movable through all recesses 2a in the length direction of the spring plate 2. The two ends of the steel wire rope 3 are fixedly connected with terminal limiting sleeves 3a, and the two terminal limiting sleeves 3a respectively lean against the outer sides of the head concave part and the tail concave part 2a of the spring plate 2. Because the length of the steel wire rope 3 is fixed, the steel wire rope 3 can be pulled and limited during the bending and stretching process of the spring plate 2, so that the spring plate 2 is prevented from being excessively bent and stretched.
As a preferred scheme, the inner groove of each rubber wheel leg 4 is integrally fixed with a rigid inner web 5, the inner web 5 is also of an arc-shaped structure, the inner web 5 is fixedly provided with an inner mounting frame 6 positioned in the inner groove of the rubber wheel leg 4, the inner mounting frame 6 is rotationally connected with two support pins 7, the support pins 7 are in rolling contact with the inner surface of the smooth plate structure of the spring plate 2, and the axis of the support pins 7 is parallel to the axis of the variable-diameter wheel.
As shown in fig. 2 and 4, each spring plate 2 is preferably provided with a plurality of end locking pieces 8, all the end locking pieces 8 of each spring plate 2 are arranged along the width direction of the plate, and the smooth plate structure of each spring plate 2 is fixedly connected with the inner web 5 of the inner groove of the following rubber wheel 4 through the end locking pieces 8. The end locks 8 are preferably screws (other fasteners are also possible) and the end locks 8 are threaded through the spring plate 2 into corresponding screw holes in the inner web 5.
As a preferred solution, as shown in fig. 2, the central hub 1 consists of an inner wheel carrier 1a and an outer wheel casing 1 c;
the inner wheel frame 1a is in a wheel-shaped structure and is arranged as a central part of the variable diameter wheel and is in transmission connection with a power shafting of the vehicle;
the outer wheel shell 1c is of a wheel-shaped structure and is coaxial with the inner wheel frame 1a, the inner diameter of the outer wheel shell 1c is larger than the outer diameter of the inner wheel frame 1a, and a hub inner cavity 1b is formed between the inner peripheral wall of the outer wheel shell 1c and the outer peripheral wall of the inner wheel frame 1 a;
the circumference wall of the outer wheel shell 1c is provided with a plurality of penetrating holes 1d which are uniformly distributed along the circumference direction, are in one-to-one correspondence with the spring plates 2 and limit the swinging range of the spring plates 2, one end of each spring plate 2 is fixedly connected with the outer circumference wall of the inner wheel frame 1a, and the spring plates 2 movably penetrate through the penetrating holes 1d.
The diameter-variable wheel provided by the embodiment can be switched between two limit wheel states, is unfolded to be a wheel without a rim, has high trafficability on a soft road surface, and increases the diameter so as to improve obstacle crossing capability; when the road is folded (contracted to a round wheel), the road can move quickly, and has good smoothness on the road; the wheel diameter change also has the function of posture adjustment. Therefore, the novel high-pass non-pneumatic tire can solve the contradiction between the good smoothness of the mobile platform on hard roads such as highways and the high pass property of soft ground such as deserts, realizes full-region walking, and has very wide application prospects in the fields of traffic, agriculture, engineering, military, deep space exploration and the like.
The foregoing is a preferred embodiment of the present invention, and various changes and modifications may be made therein by those skilled in the art without departing from the general inventive concept, and such changes and modifications should be considered as falling within the scope of the present invention as defined in the appended claims.
Claims (5)
1. A variable diameter wheel with elastic spokes, comprising a central hub (1), characterized in that it further comprises:
the spring plates (2) are circumferentially and uniformly distributed around the central hub (1), the spring plates (2) are made of spring steel, the spring plates (2) are long and narrow rectangular plates, and the plate width direction of the spring plates (2) is parallel to the axial direction of the variable diameter wheel;
the plurality of rubber casters (4) are circumferentially distributed around the central hub (1) and are C-shaped, the cross section of each rubber caster is provided with an opening which faces inwards along the radial direction, and the number of the rubber casters (4) is equal to that of the spring plates (2);
each spring plate (2) is bent under radial pressure, the bending direction of the spring plates is opposite to the forward rolling direction of the variable-diameter wheel, one end of each spring plate (2) is fixedly connected with the central hub (1), each spring plate (2) corresponds to two rubber wheel feet (4), the spring plates (2) are correspondingly movably matched with the inner groove of the previous rubber wheel foot (4), and the other end of each spring plate (2) is fixedly connected with the inner groove of the next rubber wheel foot (4);
each spring plate (2) consists of two parts, one part is a corrugated plate structure body connected with the central hub (1), and the other part is a smooth plate structure body corresponding to the two rubber casters (4);
the corrugated plate structure of each spring plate (2) includes a plurality of concave portions (2 a) concave with respect to the outer surface thereof, and the corrugated plate structure of the spring plate (2) is corrugated as viewed from the axial direction of the variable diameter wheel;
the smooth plate structure body of each spring plate (2) is correspondingly movably penetrated with the inner groove of the previous rubber wheel leg (4), the tail end of the smooth plate structure body is fixedly connected with the inner groove of the next rubber wheel leg (4), and the smooth plate structure body of each spring plate (2) is outwards arched when being observed from the axial view of the variable diameter wheel;
each spring plate (2) is also provided with a plurality of steel wire ropes (3) which are parallel to each other and have equal length, and the steel wire ropes (3) movably pass through all the concave parts (2 a) along the length direction of the spring plate (2);
the spring plate (2) is formed by laminating a plurality of spring steel plates with the same structure and material layer by layer;
the inner groove of each rubber wheel foot (4) is fixedly provided with a rigid inner web (5), the inner web (5) is fixedly provided with an inner mounting frame (6) positioned in the inner groove of the rubber wheel foot (4), the inner mounting frame (6) is at least rotatably connected with a supporting pin shaft (7), the supporting pin shaft (7) is in rolling contact with the inner surface of the smooth plate structure of the spring plate (2), and the axis of the supporting pin shaft (7) is parallel to the axis of the variable-diameter wheel;
each spring plate (2) is provided with a plurality of end locking pieces (8), and the smooth plate structure body of each spring plate (2) is fixedly connected with the inner web (5) of the inner groove of the rear rubber wheel leg (4) through the end locking pieces (8).
2. A variable diameter wheel having resilient spokes according to claim 1, wherein: the two ends of the steel wire rope (3) are fixedly connected with terminal limiting sleeves (3 a), and the two terminal limiting sleeves (3 a) respectively lean against the head concave part and the tail concave part (2 a) of the spring plate (2).
3. A variable diameter wheel having resilient spokes according to claim 1, wherein: the end locking element (8) is designed as a screw.
4. A variable diameter wheel having resilient spokes according to claim 3, wherein: all end locks (8) of each spring plate (2) are arranged in the plate width direction thereof.
5. A variable diameter wheel having resilient spokes according to claim 1, wherein: the central hub (1) consists of an inner wheel frame (1 a) and an outer wheel shell (1 c);
the inner wheel frame (1 a) is in a wheel-shaped structure and is arranged as a central part of the variable diameter wheel;
the outer wheel shell (1 c) is of a wheel-shaped structure and is coaxial with the inner wheel frame (1 a), the inner diameter of the outer wheel shell (1 c) is larger than the outer diameter of the inner wheel frame (1 a), and a hub inner cavity (1 b) is formed between the inner peripheral wall of the outer wheel shell (1 c) and the outer peripheral wall of the inner wheel frame (1 a);
the outer wheel support is characterized in that a plurality of penetrating holes (1 d) which are uniformly distributed along the circumferential direction and correspond to the spring plates (2) one by one are formed in the circumferential wall of the outer wheel shell (1 c) and limit the swing range of the spring plates (2), one end of each spring plate (2) is fixedly connected with the outer circumferential wall of the inner wheel support (1 a), and the spring plates (2) movably penetrate through the penetrating holes (1 d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511191.4A CN114103546B (en) | 2021-12-03 | 2021-12-03 | Variable diameter wheel with elastic spoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511191.4A CN114103546B (en) | 2021-12-03 | 2021-12-03 | Variable diameter wheel with elastic spoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114103546A CN114103546A (en) | 2022-03-01 |
| CN114103546B true CN114103546B (en) | 2023-11-17 |
Family
ID=80364251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111511191.4A Active CN114103546B (en) | 2021-12-03 | 2021-12-03 | Variable diameter wheel with elastic spoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114103546B (en) |
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|---|---|---|---|---|
| CH95600A (en) * | 1921-01-25 | 1922-07-17 | Beisel William Jakob | Resilient wheel for vehicles, but more particularly intended for motor vehicles. |
| CH99644A (en) * | 1922-01-06 | 1923-06-16 | Jakob Beisel William | Spring wheel for vehicles. |
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| WO2015058181A1 (en) * | 2013-10-18 | 2015-04-23 | Compagnie Generale Des Etablissements Michelin | Non-pneumatic wheel with reduced lateral stiffness |
| CN108116154A (en) * | 2018-02-06 | 2018-06-05 | 吉林大学 | A kind of Marsokhod elastic wheel |
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| CA2889676C (en) * | 2012-10-29 | 2017-09-19 | Karsten Manufacturing Corporation | Collapsible wheels and methods of making collapsible wheels |
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2021
- 2021-12-03 CN CN202111511191.4A patent/CN114103546B/en active Active
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| CH95600A (en) * | 1921-01-25 | 1922-07-17 | Beisel William Jakob | Resilient wheel for vehicles, but more particularly intended for motor vehicles. |
| CH99644A (en) * | 1922-01-06 | 1923-06-16 | Jakob Beisel William | Spring wheel for vehicles. |
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| Publication number | Publication date |
|---|---|
| CN114103546A (en) | 2022-03-01 |
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