KR20040076371A - Connecting structure strengthening shearing force - Google Patents

Abstract

PURPOSE: A connection structure having endurance against shearing force is provided to couple two parts with each other regardless of tolerance between holes for connecting parts by using a fastener. CONSTITUTION: A connection structure includes a first part(10) formed with a first perforated hole(12) and a second part(20) formed with a second perforated hole(22) communicated with the first perforated hole(12). The first part(10) is connected with the second part(20) by means of a fastener(30) extending through the first perforated hole(12) and the second perforated hole(22). A first fastening hole(12) is formed in the first part(10), and a second fastening hole(22) is formed in the second part(20) facing the first fastening hole(12). A connection part(40) is aligned between the first fastening hole(12) and the second fastening hole(22).

Description

CONNECTING STRUCTURE STRENGTHENING SHEARING FORCE}

The present invention relates to a shear force connection reinforcing structure for connecting two different parts by using a fastener, etc. More specifically, a component having a coupling element for converting the shear force generated in the mating surface of the two parts to be joined to the tensile force of the part It relates to a shear force reinforced connection structure to maximize the coupling state.

In general, when connecting two types of components in various machining fields, the most ideal coupling form is a fastener for fastening the first component 1 and the second component 2, as shown in FIGS. 1A and 1B. The tolerance of the through hole which is the fastening hole of the 1st part 1 and the 2nd part 2 through which (3) penetrates is minimized, and this is a case where the position of a hole by a tolerance at the time of processing a through hole does not change.

However, even if the precision workability is maintained, the through holes of the first part 1 and the second part 2 cannot maintain the same tolerance, and a tolerance of a predetermined size always occurs. For this reason, conventionally, as shown in FIG. 2, the diameter of the through-hole 2a of either one of the 1st component 1 or the 2nd component 2 is processed larger than the diameter of the other through-hole 1a. .

However, by forming a larger diameter of one of the through holes of the two parts in this way, there is a problem that is quite vulnerable to the shear force at the coupling portion of the combined parts.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a shear force strengthening connection structure in which two parts are in close contact regardless of the tolerance between the holes connecting the parts when fastening the two parts using fasteners. It is to.

Another object of the present invention is to provide a shear force reinforced connection structure that can withstand a greater force against the shear force generated at the connection of the two parts.

1A and 1B are a plan view and a side view of an ideal coupling form of two components.

Figure 2 is a side view of the combined state of the two parts according to the prior art.

Figure 3 is a side view of the combined state of the two parts according to the present invention.

4 is a perspective view of a connector according to the present invention.

5 is a cross-sectional view showing the technical principle and operational connection of the present invention.

<Description of Symbols for Main Parts of Drawings>

10,20; First and second parts 12,22; First and second through holes

14,24; Coupling groove 30; Fasteners

Shear force reinforcing connection structure according to the present invention for achieving the above object is a first part formed with a first through hole; A second part having a second through hole communicating with the first through hole; A fastener connecting the first part and the second part to each other by passing the first through hole and the second through hole together; A first coupling groove excavated in a spherical shape around the first through hole in the first part; A second coupling groove facing the first coupling groove and excavated in a spherical shape to the second part about the second through hole; It is interposed between the first coupling groove and the second coupling groove is characterized in that it has a connector that one surface is interviewed in the first coupling groove, the other surface is interviewed in the second coupling groove and the fastener penetrates. .

Preferably, the connector is formed in the form of a goggle, characterized in that the connector side through-hole formed so that the fastener penetrates.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Accompanying drawings Figure 3 is a side view of the coupling state of the two parts according to the present invention, Figure 4 is a perspective view of the connector according to the present invention, Figure 5 is an explanatory view of the technical principle and operation connection relationship of the present invention.

As shown in FIG. 3, the shear strengthening connection structure according to the present invention includes a first part 10 and a second part 20, and a first through hole 12 is formed in the first part. A second through hole 22 is formed in the two parts. In addition, the first through hole 12 and the second through hole 22 are provided with fasteners 30 for penetrating them up and down to couple the first part 10 and the second part 20 to each other.

In addition, around the first through hole 11 of the first part 10, a first coupling groove 14 excavated in a spherical shape is formed around the first through hole 11, and the second through hole of the second part 20 is formed. 22, a second coupling groove 24 is formed around the first coupling groove 14 and is excavated in a spherical shape.

And between the first coupling groove 14 and the second coupling groove 24 is provided with a spherical connector 40 in the form of a goggle, which is installed in the center as shown in FIG. Similarly, the connector side through hole 42 is formed so that the fastener 30 passes therethrough.

Hereinafter, the technical principle and operation of the present invention configured as described above will be described with reference to FIG. 5.

The fastener 30 passes through the first through hole 12 of the first part 10, the second through hole 22 of the second part 20, and the through hole 42 of the connector side of the connector 40. When the first component 10 and the second component 20 are fastened to each other, the outer peripheral surfaces of the coupling grooves 14 and 24 and the connector 40 of the first component 10 and the second component 20 are mutually interlocked. Since the spherical shape with the same radius to enable the surface contact of the connector 40 is maintained in a coupled state while moving in the direction in close contact with the coupling grooves 14 and 24 of the two parts.

That is, even if the through holes 12 and 22 formed in the two parts and the through hole 42 on the connector 40 do not coincide due to the tolerances, the connector 40 is the first component 10 and the second component 20. It is located in the most close state to remove the space generated between.

Therefore, in FIG. 5, the force corresponding to the shear force given to the part at a specific contact portion is dispersed by the force of the tensile force transmitted to the fastener 30 and the shear force transmitted to the connector 40, and the use of the same parts and fasteners as compared with the related art. If the same mounting torque is given, the coupling state is better than the shear force.

Unlike the embodiment presented in the present invention in the shear-force-reinforced connection structure according to the present invention as described above, each coupling groove and the connector enable mutual contact with each other, and basically include the technical components claimed in the present invention. Even if some of the other components are modified and applied, it should be regarded as basically included in the technical scope of the present invention.

As described above, the component connection device according to the present invention is to interpose a spherical connector on the mating surface between the two parts, the coupling surface is formed by the coupling groove into which the connector is inserted in the surface contact state of the mating state of the two parts Is in close contact with the most stable state, the effect is coupled, the shear force generated in the coupling portion is converted into a tensile force by the connector has the effect of strengthening the connection between the two parts.

Claims (2)

A first part having a first through hole formed therein; A second part having a second through hole communicating with the first through hole; A fastener connecting the first part and the second part to each other by passing the first through hole and the second through hole together; A first coupling groove excavated in a spherical shape around the first through hole in the first part; A second coupling groove facing the first coupling groove and excavated in a spherical shape to the second part about the second through hole; Interposed between the first coupling groove and the second coupling groove, one surface of which is interviewed with the first coupling groove, the other surface of which is connected to the second coupling groove, and the fastener penetrates through the connector. Shear Strength Connection Structure. According to claim 1, wherein the connector is formed in the form of a goggle, the shear force reinforced connection structure, characterized in that the through-hole through-holes through which the fastener is formed.