JPH0958205A - Coupling device for coupling together parts with holes having different center-to-center distances - Google Patents

Abstract

Kind Code: A1 Abstract: A coupling device is provided that allows parts with holes having different center-to-center distances to be bolted together. A coupling device includes a threaded coupling member 11 such as a bolt or a nut, and a bush 12, and an inner diameter of the bush 12 is larger than a diameter of a shank portion of the bolt 11. When this coupling device is used for mounting the wheel 4 of a vehicle, the bolt 11 fits inside the hole F in the wheel 4 with the bush 12 snapped onto the base of the head of the bolt 11 from below. The bolt 11 and then the bolt 11 is inserted into the corresponding threaded hole S in the axle hub 3.
Can be screwed in. The difference DI between the center distance IF of the hole F in the wheel 4 and the center distance IS of the threaded hole S in the axle hub 3 is generated by the difference between the diameter of the bush 12 and the diameter of the bolt 11. Is compensated by the play done.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for connecting parts having holes having different center distances to each other. That is, the present invention uses a bolt or similar threaded member when the distance between at least two bolt holes in the first part differs from the corresponding distance between the two holes in the second part. It relates to a coupling device that can be used to couple a first part to a second part. The parts that can be connected to each other are mechanical members. The preferred embodiment of the present invention is utilized to mount a wheel to a vehicle axle hub.

[0002]

BACKGROUND OF THE INVENTION Vehicle wheels have a plurality of holes, typically three to five, distributed along the circumference of a circle concentric with the center of the wheel. A plurality of threaded holes corresponding to the aforementioned holes in the wheel are provided on a plate (generally referred to as a "hub") that is attached to and perpendicular to the axle. The wheels are retained on the axle hub by retaining bolts, which are inserted through holes in the wheels and screwed into threaded holes in the hub.

The morphology of the holes in the wheels and the holes in the hub differ between one vehicle manufacturer and another. The morphology of the holes in the wheel and the holes in the hub also differ between one model and another, depending on the design choices made according to functional and aesthetic requirements.

These differences are not only in the number of holes in the wheel (and the corresponding number of threaded holes in the hub), but also in the center-to-center distance between one hole in the wheel and another. (Or the center-to-center distance between two corresponding threaded holes in the hub).

Basically, the radius of the circle along which the hole in the wheel is located may be different from the radius of the circle along which the threaded hole in the axle hub is located. There is.

[0006]

At the present time, a wheel having holes such that the centers of the holes are located at a given distance from each other, the centers of the holes are located at a distance different from the given distances mentioned above. Mounting on a vehicle with an axle hub with such holes is not possible, even if the difference is very small.

The object of the invention is to solve the above-mentioned problems by providing a device which allows parts with holes having different center-to-center distances to be bolted together.

[0008]

The device comprises a threaded connecting member, such as a bolt or nut, and a bush, the inner diameter of which is greater than the diameter of the shank portion of the bolt or the diameter of the nut. It is formed. In the preferred embodiment used for mounting the wheels of a vehicle,
The bolt is inserted into a hole in the wheel with the bush snap-fitted from below onto the base of the head of the bolt, which is then screwed into a corresponding hole in the axle hub. The difference between the wheel hole center distance and the hole center distance in the vehicle axle hub is compensated for by the play created by the difference between the bushing diameter and the bolt diameter. If the device comprises a nut, it is the nut itself that creates the play in the bush. As a result, the nut can be screwed onto a threaded shank protruding from the axle hub or onto a threaded shank inserted into one of the holes in the axle hub.

One of the advantages of the present invention is that even if the center-to-center distance between the holes in the wheel for the retaining bolts is different from the center-to-center distance between the holes in the axle hub into which the retaining bolt is screwed. Can be attached to the axle hub of the vehicle.

This advantage applies not only when the center-to-center distance of the holes in the wheel is greater than the center-to-center distance of the holes in the axle hub, but, conversely, the center-to-center distance of the holes in the axle hub is It also applies when the distance is greater than the center-to-center distance of the holes.

In the following, the preferred embodiment applied to the wheels of a vehicle is used as a non-limiting example to illustrate the invention. In the preferred embodiment applied to the wheels of this vehicle, the difference between the center-to-center distances between the holes in the two parts to be joined is a few millimeters, and the center-to-center distance is of the order of 10 ² millimeters. , The wheel hole diameter and axle hub hole diameter are on the order of 10 ¹ millimeters. Of course, these values can vary depending on the size of the components involved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in more detail with reference to the accompanying drawings showing preferred embodiments of the present invention. The accompanying drawings show a preferred embodiment of the present invention used to attach a wheel to an axle hub of a vehicle. The connecting device, shown in FIGS. 2 to 4, for connecting parts having holes with non-accurate center-to-center distances to each other comprises a bolt 11 and a bush 12.

The bolt 11 is a head portion 13 used as a grip portion for tightening or loosening the bolt 11 itself.
And a shank portion complementary threaded to the first hole S1 and the second hole S2 of the first plurality of holes S formed in the first part 3 to be connected. 10 and. In the example shown, the first part 3 is a hub 3 mounted on an axle 31 which is only partially and schematically shown.

The shank portion 10 includes a first hole F1 and a second hole F1 of the second plurality of holes F formed in the second component 4.
Has a diameter D10 that is smaller than the first diameter DF of the hole F2. In the example shown, the second part 4 is a wheel 4 to be connected to the hub 3.

The first threaded hole S1 and the second threaded hole S2 are separated by a first distance IS. This first distance IS is equal to the first hole F1 and the second hole F2 in the wheel 4.
Different from the second distance IF between.

In the illustrated embodiment, the bush 12 is frustoconical in shape and has an inner diameter D12. The inner diameter D12 of the bush 12 is smaller than the diameter D13 of the head portion 13 of the bolt 11, and the inner diameter D12
Is the shank of the bolt 11 by a value equal to the difference DI between the first distance IS (center distance of the threaded hole S in the hub 3) and the second distance IF (center distance of the hole F in the wheel 4). Part 1
It is larger than the diameter D10 of 0. With this configuration, at least two bolts 11 can be connected to the first hole F1 and the second hole F2.
Through and through the axle hub 3 into the first threaded hole S1 and the second threaded hole S2, respectively.

Obviously, in the case of a vehicle, there are three or more holes in the wheel 4 and three or more threaded holes in the axle hub 3. Actually, the whole reference numeral 1
The connecting device embodying the present invention represented by means moves the bolt 11 inward or outward with respect to the hole F through which the bolt 11 passes.

For example, when the center-to-center distance IS between the threaded holes S in the axle hub 3 is smaller than the center-to-center distance IF between the holes F in the wheel 4, each bolt 11 extends inwardly of the wheel 4. Moved towards.

The bush 12 is a head portion 1 of the bolt 11.
3 has an annular seat 14 configured to house 3.
The head portion 13 of the bolt 11 has an amount equal to or larger than the difference DI between the first center distance IS and the second center distance IF,
While allowing play in the direction V perpendicular to the bolt axis A and being firmly held in the direction R of the bolt axis A, the annular seat 14 allows the head portion 13 to rotate. The head portion 13 of the bolt 11 is accommodated.

The annular seat portion 14 is chamfered (chamfed), for example.
has a curved rim that can be formed by means of an ering), and this curved rim has a head portion 13 of the bolt 11.
It is adapted to be snap-fitted on the corresponding rim. This makes it easier to attach the coupling device 1 and also makes it easier to hold the bolt 11 against the bush 12.

FIG. 5 shows another embodiment of the present invention. In the embodiment shown in FIG. 5, a bush 12 similar to the bush 12 in the above-described embodiment is a nut 1 having a head portion 13.
Work with 1. The connection relationship between the nut 11 and the bush 12 is comparable to the connection relationship between the bush 12 and the head portion 13 of the bolt 11 in the above-described embodiment. Obviously, the nut 11 must be screwed onto a corresponding threaded shank (not shown in FIG. 5) in order to be able to connect the two parts together. This threaded shank can form part of the hub 3 (or other part to be connected) or it can be screwed into a hole in the hub 3 itself (or other part to be connected). it can.

The inner diameter D12 of the bush 12 is formed larger than the outer diameter D13 of the nut 11. As a result, the play required to connect together parts that each have at least two holes, such that the distance between the holes in one part differs from the distance between the corresponding two holes in the other part. Is given.

Various modifications and changes can be made to the present invention described above without departing from the scope of the present invention. Furthermore,
All the details of the invention can be replaced by technically equivalent components.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a possible application example of the present invention.

FIG. 2 is a partial cross-sectional side view showing a partially cutaway view of an embodiment of the present invention applied to a vehicle wheel.

FIG. 3 is a partial cross-sectional side view of an apparatus embodying the present invention that comprises a bolt and bush assembly.

4 is a cross-sectional view of a bush forming part of the device shown in FIG.

FIG. 5 is a partial cross-sectional side view showing a partially cutaway view of a device embodying the present invention, which is composed of an assembly of a nut and a bush.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Coupling device (device) 3 ... 1st component (hub, axle hub) 4 ... 2nd component (wheel) 10 ... Shank part 11 ... Coupling member (bolt, nut) 12 ... Bush 13 ... Head part

Claims (5)

[Claims] 1. A connecting device for connecting parts having holes with different center distances to each other, comprising a connecting member (11) having a head portion (13), said connecting member (11). Comprises or cooperates with a shank portion (10), to which shank portion (10) is formed a first plurality of parts formed in a first part (3) to be connected. The first threaded hole (S1) and the second threaded hole (S2) of the threaded holes (S) are complementarily threaded and the shank portion (10) is Parts (3)
A second formed in a second part (4) to be connected to
Smaller than the first diameter (DF) of the first hole (F1) and the second hole (F2) of the plurality of holes (F) of the
10) having the first threaded hole (S1) and the second
The threaded hole (S2) is spaced apart by a first center distance (IS), and the first center distance (IS) is the first hole (F1) and the second hole (F2). A connecting device for connecting parts having holes having different center distances different from each other with a second center distance (IF) between the connecting member (11) and the inner diameter (D12). A bush (12) having the inner diameter (D12) of the head portion (13) of the connecting member (11) (D13).
And the inner diameter (D12) is smaller than the first center distance (IS) and the second center distance (IF).
Formed to be larger than the diameter (D10) of the threaded shank portion (10) by a value equal to the difference (DI) between the two threaded shank portions (10), the first hole (F1) and the second hole (F1). Different center-to-center distances are characterized in that they are adapted to penetrate through the hole (F2) and to be screwed into the first threaded hole (S1) and the second threaded hole (S2) respectively. A coupling device for coupling parts having holes with each other. 2. A head portion (13) and a shank portion (10)
A shank (1) comprising a bolt (11) having
0) with a first threaded hole (S1) of the first plurality of threaded holes (S) formed in the first part (3) to be connected and a second threaded The shank (10) is threaded complementarily to the hole (S2) and the shank (10) is formed in a second part (4) to be connected to the first part (3). The first hole (F of the plurality of holes (F)
1) and the diameter (D10) smaller than the first diameter (DF) of the second hole (F2), the first threaded hole (S1) and the second threaded hole (S2) The first center-to-center distances (IS) are spaced apart from each other, and the first center-to-center distances (IS) are the first hole (F1) and the second hole (F).
2) is different from the second center distance (IF), and includes the bolt (11) and a bush (12) having an inner diameter (D12), the inner diameter (D12) being equal to the bolt (1).
1) is formed smaller than the diameter (D13) of the head portion (13), and the inner diameter (D12) is different between the first center distance (IS) and the second center distance (IF) ( D
I) is formed to be larger than the diameter (D10) of the shank portion (10) of the bolt so that the two bolts penetrate the first hole (F1) and the second hole (F2) and Holes with different center-to-center distances according to claim 1, characterized in that they are adapted to be screwed respectively into one threaded hole (S1) and into a second threaded hole (S2). A coupling device for coupling the provided parts together. 3. The bush (12) is frustoconical in shape, and the bush (12) is the connecting member (1).
1) has an annular seat portion (14) configured to accommodate the head portion (13), the head portion (13) having the first center-to-center distance (IS) and the second center-to-center distance. Distance (I
The amount of the connection member (11) is equal to or more than the difference (DI) between F).
While allowing play in the direction (V) perpendicular to the axis (A) of the connecting member (11) and being firmly held in the direction (R) of the connecting member (11) in the axis (A) direction, the head portion ( 1
Coupling device for coupling parts with holes with different center distances according to claim 1, characterized in that 3) is rotatable. 4. The annular seat (14) has a curved rim that snap fits over a corresponding rim of the head (13) of the connecting member (11). A coupling device for coupling parts with holes having different center distances according to claim 3, characterized in that 5. A nut (1) having a head portion (13)
1), the nut (11) has a shank portion (10)
Cooperating with the shank portion (10), the shank portion (10) has a first threaded hole of a first plurality of threaded holes (S) formed in a first part (3) to be connected. (S1) and the second threaded hole (S2) are complementarily threaded, the shank (10) being the second part (4) to be connected to the first part (3). ) First hole (F1) and second hole (F2) of the second plurality of holes (F) formed therein
Has a diameter (D10) smaller than the first diameter (DF) of the first threaded hole (S1) and the second threaded hole (S2) by a first center distance (IS). The first center distance (IS) is different from the second center distance (IF) between the first hole (F1) and the second hole (F2). (11) and a bush (12) having an inner diameter (D12), the inner diameter (D12) being formed smaller than the diameter (D13) of the head portion (13) of the nut (11), and (D1
2) is formed larger than the diameter (D10) of the threaded shank portion (10) by a value equal to the difference (DI) between the first center distance (IS) and the second center distance (IF). , Thereby the first hole (F1) and the second hole (F2)
Through the first threaded hole (S1) and the second
2. Different center-to-center distances according to claim 1, characterized in that it allows two nuts to be screwed onto the threaded shank portions respectively screwed into the threaded holes (S2). A coupling device for coupling parts having holes with each other.