JP3894872B2 - Wheel cushion structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a kind of wheel cushioning structure, and more particularly to a cushioning structure that absorbs up and down vibration forces at the moment when a wheel receives an impact.
[0002]
[Prior art]
Various wheelbarrows provide the function of moving various different loads. Among them, in a wheelbarrow that specially transports valuable precision equipment, the wheel of the wheelbarrow suddenly hits an obstacle during transportation to prevent the valuable precision equipment on the wheelbarrow from vibrating and damaging due to impact. Wheel shock absorber equipment is very important.
[0003]
In general, the well-known wheelbarrow cushioning structure reduces the impact force by attaching various springs and elastic pieces, but elastic parts such as springs and elastic pieces are all made of a rigid material. The propagation speed of the force is extremely rapid, and the instantaneous impact force received by the wheel absorbs it and propagates to the axle at the same time, so it cannot absorb the impact force effectively and transports valuable precision equipment. Is extremely dangerous.
[0004]
[Problems to be solved by the invention]
In order to effectively solve this problem in view of the drawbacks of known wheelbarrow wheel cushioning structures and the dangers of transporting valuable precision equipment using a wheelbarrow, the present invention provides a kind of wheel cushioning structure. It is to provide.
[0005]
The main object of the present invention is to provide a kind of wheel cushioning structure, which absorbs rotational force inside the toughness buffer material due to strain of the toughness cushioning material and sufficiently absorbs the impact force of instantaneous impact. It is assumed that the structure can be used.
[0006]
Another object of the present invention is to provide a kind of wheel cushion structure, which is a structure in which the upward impact force received by the wheel is converted into a rotational force, thereby reducing the propagation speed of the impact force. Shall.
[0007]
[Means for Solving the Problems]
The invention of claim 1 is a wheel cushion structure,
Two or more plate pieces (1), wherein the one or more plate pieces (1) have one end coupled to the central axis (2) and the other end coupled to the wheel shaft (53). )When,
The central shaft (2), the central shaft (2) coupled to a shaft rod (6) for loading a vehicle body;
Two or more concentric hollow rigid rings (3), (3 ′) of different diameters;
A toughness buffer material (4) that is any material having toughness;
The central axis (2) is arranged in the central part of two or more concentric hollow rigid rings (3), (3 ') of different diameters, and the tough cushioning material (4) has a large diameter Filled between the hollow rigid ring (3) and the small diameter hollow rigid ring (3 ') and between the small diameter hollow rigid ring (3') and the central shaft (2) and tough cushioning material (4) The large-diameter hollow rigid ring (3), the small-diameter hollow rigid ring (3 ′) and the central axis (2) are coupled, and one end of the plate piece (1) is coupled to the central axis (2) . The small-diameter hollow rigid ring (3 ′) is directly provided with a fitting groove (31) for firmly fixing the fitting end (13) of the plate piece (1), and the large-diameter hollow rigid ring (3). protrusion (32) is provided, the projection (32) is characterized in that disposed along the circumference, a wheel buffer structure There.
According to a second aspect of the present invention, in the wheel cushion structure according to the first aspect, perforations (11), (14) are provided at both ends of the plate piece (1), and the central shaft (2) and the wheel (5) are provided. The wheel cushion structure is characterized in that it is used for coupling with the wheel shaft (53).
According to a third aspect of the present invention, in the wheel cushion structure according to the first aspect, an arc portion (12) is provided on the upper side and the lower side of one end coupled to the central axis (2) of the plate piece (1), A fitting end (1) in which the edge of one end coupled to the central axis (2) of the plate piece (1) is fitted into a fitting groove (31) provided in a hollow rigid ring (3 ') having a small diameter ( 13) It is set as the wheel buffer structure characterized by having been carried out.
The invention according to claim 4 is the wheel cushioning structure according to claim 1, characterized in that both ends of the central shaft (2) are flat.
The invention according to claim 5 is the wheel cushioning structure according to claim 1, wherein at least two hollow rigid rings (3) and (3 ') are provided.
According to a sixth aspect of the present invention, in the wheel cushioning structure according to the first aspect, at the edge of one end coupled to the central axis (2) of the plate piece (1) to the hollow rigid ring (3 ') having a small diameter. The wheel cushion structure is characterized in that a fitting groove (31) to be fitted with the fitting end (13) provided is provided.
According to a seventh aspect of the present invention, in the wheel cushion structure according to the first aspect, the convex portion (32) protruding in the axial direction is installed on the hollow rigid ring (3) having a large diameter, and the convex portion is formed when the impact force is excessive. The wheel cushion structure is characterized in that (32) limits the rotation of the plate piece (1).
The invention according to claim 8 is the wheel cushioning structure according to claim 1, wherein the toughness cushioning material is rubber.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The wheel cushioning structure of the present invention is a cushioning structure that absorbs vertical vibration force at the moment when the wheel is impacted, and includes at least two plate pieces, one central axis, at least two hollow rigid rings having different diameters, and Comprising a tough cushioning material, the composition of which is located in the central portion of the at least two concentric hollow rigid rings of different diameters, the tough cushioning material comprising a large diameter hollow rigid ring and a small diameter hollow stiffness ring Between the rings and between the small diameter hollow rigid ring and the central shaft, and the tough cushioning material and the hollow rigid ring and the central shaft are tightly coupled, and the inner end of the plate piece is coupled to the central shaft; The plate pieces are fitted into a small-diameter hollow rigid ring and are tightly coupled. At the time of implementation, the outer end of the plate piece is assembled to the wheel axle, the center shaft is connected to the axle rod that carries the vehicle body, and when the wheel passes an obstacle, the impact force received by the wheel is reduced by the wheel axle and the plate piece. At this time, the outer end of the plate piece rotates around the central axis, and the upward impact force is converted into a rotational force. At the same time, the plate piece rotates the hollow rigid ring having a small diameter, The inner and outer tough cushioning material of the diameter accidental swallowing is deformed by rotation, and the rotational force is absorbed by the rotational deformation of the toughness buffering material. The present invention converts the impact force received by the wheel into a rotational force, absorbs the rotational force internally by the strain of the toughness buffer material, and exhibits a buffer function that sufficiently absorbs the instantaneous impact force.
[0009]
【Example】
As shown in FIGS. 1 and 2, the present invention provides a kind of wheel cushion structure,
There are at least two plate pieces 1 , perforations 11 and 14 are provided at both ends of the plate piece 1, and arc portions 12 are provided on the upper and lower sides of the perforation 11 at one end ,
The above-mentioned at least two plate pieces 1 in which the edge provided with the arc portion 12 of the plate piece 1 is the fitting end 13;
The central shaft 2 is a flat central shaft connecting end 21, both ends of the central shaft 2 are connected to the central shaft connecting end 21 and the shaft rod 6 for loading the vehicle body, and the rotation of the central shaft 2 is limited. , The central axis 2,
'Is a, the hollow rigid ring 3 is provided above twofold and not necessarily limited to a circle, of which a relatively small hollow rigid ring 3 having a diameter of' at least concentric hollow rigid ring 3 having different two diametrically, 3 At least two fitting grooves 31 are provided, and the aforementioned plate piece 1
The at least two concentric hollow rigid rings 3 , 3 ′ having different diameters to be fitted and fixed
The toughness buffer material 4, the toughness buffer material 4 is a material having an arbitrary toughness, and the toughness buffer material 4, in which rubber is employed in this embodiment,
It has.
[0010]
The composition is such that the central axis 2 is disposed in the central portion of the hollow rigid ring 3 having at least two different diameters, and the toughness buffer material 4 is a large-diameter hollow rigid ring 3 and a small-diameter hollow rigid ring 3 A hollow rigid ring 3 ′ having a diameter is filled between the central shaft 2, and the rigid rings 3, 3 ′ and the central shaft 2 are joined by a tough cushioning material 4.
It is assumed that relative sliding does not occur, and the perforation 11 at one end of the plate piece 1 is connected to the central shaft 2, and the arcuate portion 12 and the fitting end 13 of the plate piece 1 are fitted into the hollow rigid ring 3 ′ having a small diameter. They are fitted into the grooves 31 and are tightly coupled to each other.
[0011]
3 to 5, the wheel shaft 53 is passed through the shaft hole 52 of the bearing 51, the outer end perforation 14 of the plate piece 1, and the hollow tube 54, and the wheel shaft 53 is tightened with screws 55. Further, the central shaft connecting end 21 is connected to the shaft rod 6 on which the vehicle body is loaded. When the wheel 5 passes through an obstacle, the impact force received by the wheel 5 is propagated to the wheel axle 53 of the wheel and the outer perforation 14 of the plate piece 1, and at this time, the outer end of the plate piece 1 rotates around the central axis 2. The upward impact force is converted into rotational force, the plate piece 1 rotates the hollow rigid ring 3 having a relatively small diameter, and the tough cushioning material 4 inside and outside the hollow rigid ring 3 is deformed by rotation, The rotational force is absorbed by the deformation of the toughness buffer material 4 due to the rotation, and the impact force is removed.
[0012]
Further, in consideration of the safety of the load loaded on the vehicle body, in the present invention, the hollow rigid ring 3 having a relatively large diameter is provided with a convex portion 32 protruding outward, and the impact force received by the wheel 5 is excessive. When there is a risk of tearing the toughness buffer material 4, the protrusion 32 effectively locks the plate piece 1, prevents the entire loaded vehicle body from falling down, and maintains the stability of the load on the loaded vehicle body. To prevent damage.
[0013]
【The invention's effect】
In summary, the wheel cushion structure of the present invention converts the upward impact force received by the wheel 5 into a rotational force, slows the propagation speed of the impact force, and absorbs the impact force internally by the strain of the toughness buffer material 4. Sufficiently provides a buffering effect of instantaneous impact force, and the safety of the load is also considered.
[0014]
The shape, structure and device of the present invention are not present in the past, and various disadvantages of the conventional wheel cushioning structure are improved, so that it has a function in use, is suitable for practical use, and is sufficiently patented. It meets the requirements and is an ideal invention. The above embodiments do not limit the scope of the present invention, and any modification or alteration of details that can be made based on the present invention shall fall within the scope of the claims of the present invention.
[Brief description of the drawings]
FIG. 1 is a combined three-dimensional view of an embodiment of the present invention.
FIG. 2 is an exploded view of an embodiment of the present invention.
FIG. 3 is an exploded view assembled to the wheel of the embodiment of the present invention.
FIG. 4 is a local side sectional view of an embodiment of the present invention.
FIG. 5 is an operation display diagram of the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Plate piece 11 Perforation 12 Arc part 13 Fitting end 14 Perforation 2 Center axis 21 Center axis connecting end
3, 3 ′ rigid ring 31 fitting groove 32 convex portion 4 toughness buffer material 5 wheel 51 bearing 52 shaft center hole 53 wheel shaft 54 hollow tube 55 screw 6 shaft rod

Claims (8)

In the wheel cushion structure,
Two or more plate pieces (1), wherein the one or more plate pieces (1) have one end coupled to the central axis (2) and the other end coupled to the wheel shaft (53). )When,
The central shaft (2), the central shaft (2) coupled to a shaft rod (6) for loading a vehicle body;
Two or more concentric hollow rigid rings (3), (3 ′) of different diameters;
A toughness buffer material (4) that is any material having toughness;
The central axis (2) is arranged in the central part of two or more concentric hollow rigid rings (3), (3 ') of different diameters, and the tough cushioning material (4) has a large diameter Filled between the hollow rigid ring (3) and the small diameter hollow rigid ring (3 ') and between the small diameter hollow rigid ring (3') and the central shaft (2) and tough cushioning material (4) The large-diameter hollow rigid ring (3), the small-diameter hollow rigid ring (3 ′) and the central axis (2) are coupled, and one end of the plate piece (1) is coupled to the central axis (2) . The small-diameter hollow rigid ring (3 ′) is directly provided with a fitting groove (31) for firmly fixing the fitting end (13) of the plate piece (1), and the large-diameter hollow rigid ring (3). The wheel cushioning structure is characterized in that a convex portion (32) is provided on the rim, and the convex portion (32) is disposed along the circumference .   The wheel cushion structure according to claim 1, wherein perforations (11), (14) are provided at both ends of the plate piece (1), and the center shaft (2) and the wheel shaft (53) of the wheel (5) A wheel cushion structure characterized by being used for coupling.   The wheel cushion structure according to claim 1, wherein an arc portion (12) is provided on an upper side and a lower side of one end coupled to the central axis (2) of the plate piece (1), and the center of the plate piece (1). The edge of one end coupled to the shaft (2) is a fitting end (13) fitted to the fitting groove (31) provided in the small-diameter hollow rigid ring (3 ′). Characteristic wheel cushion structure.   2. The wheel cushioning structure according to claim 1, wherein both ends of the central shaft (2) are flat.   The wheel cushion structure according to claim 1, wherein at least two hollow rigid rings (3), (3 ') are provided.   2. The wheel cushion structure according to claim 1, wherein a small diameter hollow rigid ring (3 ') is fitted to a fitting end (1) connected to the central axis (2) of the plate piece (1). 13) A wheel cushioning structure, characterized in that a fitting groove (31) to be fitted with is provided.   The wheel cushion structure according to claim 1, wherein a convex portion (32) projecting in the axial direction is installed on the large-diameter hollow rigid ring (3), and when the impact force is excessive, the convex portion (32) is a plate piece ( A wheel cushioning structure characterized by limiting the rotation of 1).   2. The wheel cushioning structure according to claim 1, wherein the toughness cushioning material is rubber.

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