JPS61182828A - Combing structure of two members - Google Patents

Abstract

PURPOSE:To provide the titled structure having excellent combing strength and made stainless by opening a hole on one part of member, by providing a connecting body on one face of the member of other part, by covering the hat body made of stainless material on the connecting body and by calking after inserting through said hole. CONSTITUTION:The iron treated with stainless plating of Ni, etc. is used for the material of members 1, 2 and it may be made of stainless steel. A connecting body 5 is provided in the same body as the member 2 by press forming, etc. or in separate body with the member 2 in rivet shape. The hat body 3 made of stainless material of stainless steel, brass, etc. having flange port 3c is inserted through the hole 4 of the member 1 after covering to the connecting body 5 made of rusting material of iron, etc. and the head 5a of the connecting body 5 projected from the hole 4 is calked from the overhead of the hat body 3 and formed in enlarging head shape. At the same time the head end 3a of the hat body 3 is made in suspension shape with pressure contact to the hole edge 4a and the drum body face 5b of the connecting body 5 is press-connected in suspension shape via the drum body face 3b of the hat body 3 to the hole face 4b and both members 1, 2 are combined.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a joining structure suitable for caulking and joining various two members whose joints are required to be rust-proof.

<Prior Art> FIG. 16 shows a typical conventional coupling structure, in which a joint 51 protruding from one surface of one member 50 is inserted into a hole 53 of the other member 52, and The head 51a of the joint 51 protruding from the hole 53 is caulked in a press-fitting manner to the edge of the hole to connect the two members 50 and 52.

FIG. 17 shows another typical conventional example, in which one member 60 and the other member 61 are coupled with a rivet 62.

Therefore, in both the former and the latter, even if the surface of the caulked joint made of a rust-prone material is plated to prevent rust, the joint head body, that is, the base body and the plating, are integral and there is no space between the two. Because there is no slippage,
Due to the large local deformability, i.e., increase in surface area, of the head circumference of the joint during caulking, the tensile stress particularly concentrated on the plating at that location causes cracks, and oxidation, or rust, from these cracks is unavoidable. .

Therefore, in order to prevent the caulked portion from rusting, plating may be applied after caulking.

However, since the plating after caulking involves two parts that are joined together and becomes a complex and large in size, it goes without saying that spots in the plating are more likely to occur in proportion to the degree of irregularity of the complex. There is a serious problem in that plating does not adhere to the key joint portion, that is, the contact boundary portion between the joint head and the member, and rust cannot be prevented from forming at the boundary portion, and a decrease in plating efficiency is unavoidable. Furthermore, there is the problem of plating restrictions on the size of composite products, and there are concerns about plating problems at the boundary parts, and in the case of large products, the caulking head part must be coated with paint or the like to prevent rust.

In any case, as long as the two parts are joined together by caulking using a joint made of a rust-resistant material such as iron, which has high joint strength and low material cost, the above problem can be avoided. The current situation is that this is not possible.

<Problems to be Solved by the Invention> The problems to be solved by the present invention are to solve all of the above-mentioned problems peculiar to crimping at once, to have no size restrictions, to have excellent crimping processing efficiency, and to solve problems without any problems. It is assumed that the material is rusted.

<Means for solving the problems> The measures taken by the present invention to solve the above problems are as follows:
A hole is opened in one member, a joint made of a rust-resistant material is provided on one side of the other member, and this joint is inserted into the hole of the one member together with a cap made of a rust-resistant material covering the joint. It is characterized in that the joint head is crimped from the top of the hat body to the head end of the hat body in a manner such that it is pressed into contact with the hole edge.

<Function> The cap body made of a non-rust material blends integrally with the joint made of a rust-prone material to be caulked and covers the head of the joint, essentially connecting the two parts. is sealed to prevent any contact with the outside world.

<Example> Examples of the present invention will be described below.

1 is one member, 2 is the other member, 3 is the cap body,
The member 1 has an appropriate number of holes 4, and the member 2 has joints 5 on one surface thereof, in principle, in the same number and in the same positional relationship as the holes 4, either in the same body or separately.

Both members 1 and 2 are made of a material strong enough to withstand caulking pressure, such as metal such as iron. In particular, member 2 in the embodiment in which joint 5 is integrally formed is similar to the material of joint 5 that is molded separately. In particular, the material is selected from rust-prone materials such as iron, which are hard, ductile, malleable, inexpensive, and suitable as a binder, but which also rust easily. Further, both members 1 and 2 themselves are plated with, for example, decorative or rust-proof plating, such as nickel, chrome, or their base metals. Further, the member 1 having the hole 4 may be made of stainless steel, and in an embodiment in which the joint body 5 is provided separately, both members 1 and 2 may be made of stainless steel.

The cap body 3 is formed to have an inner and outer diameter that can be covered with the joint body 5 and inserted into the hole 4. The cap body 3 is made of a rust-free metal material such as stainless steel, brass, aluminum, etc. It is press molded into the required shape. Also, hat body 3
If it is made of brass or aluminum, the former may be plated with nickel and chrome, and the latter may optionally be anodized in various colors for decoration.

Cover the joint 5 of such a member 2 with the cap body 3, insert this joint 5 together with the cap body 3 into the hole 4 of the member 1, and insert the five joints purchased through the hole 4 from above the cap body 3. The head 5a or 5 of the joint body 5 is caulked into a round head shape or a flat head shape as shown in the drawing.
C is crushed into an enlarged head shape, and the head end 3a of the cap body 3 is press-fitted to the hole edge 4a, and the fitting 5 is attached to the hole surface 4b.
Both members 1 and 2 are joined by crimping the trunk surface 5b of the cap body through the trunk surface 3b of the cap body in a hook-like manner.

1 to 3 show a concrete first embodiment of the present invention.

The joint body 5 is formed into the same body as the member 2 by, for example, press molding, and the cap body 3 is formed along the lower edge of the body part 3b.
The fitting body 5 made of a rust-resistant material and the cap body 3 made of a non-rust material which is covered with a flange portion 3C are inserted into the hole 4, and the head 5a of the fitting body 5 obtained through the hole 4 is inserted into the hole 4. The body 3 is caulked from above to form the head 5a of the joint body 5 into an enlarged head shape, and the head end 3a of the cap body 3 is pressed into the hole edge 4a, and the body surface 5b is attached to the hole surface 4b. Both members 1 and 2 are joined together by being crimped in a latch manner via the surface 3b.

In this embodiment, both members 1 and 2 are connected by the flange portion 3C.
A gap 6 is formed between the two members, and the gap 6 produces a heat insulating effect, which is useful for joining two members where heat conduction is not desired.

4 and 5 show a second embodiment.

The joint body 5 is formed into the same body as the member 2 by, for example, press molding, and the cap body 3 is made of a non-rust material, excluding the flange portion 3C, and covered with the joint body 5 made of a rust-resistant material. Both the cap body 3 and the shell are inserted into the hole 4, and the head 5a of the joint body 5 taken from this hole 4 is caulked from above the cap body 3 to form the head 5a of the joint body 5 into an enlarged head and the head end 3a of the cap body 3.
is pressed against the hole edge 4a, and the body surface 5b is attached to the hole surface 4b.
Both members 1 and 2 are joined together by being crimped in a hook-like manner via the trunk surface 3b.

In this embodiment, both members 1 and 2 are in close contact with each other, which is useful for joining two members that require efficient heat conduction, and there is no gap between the two members, which is a source of rust. No impurities attached.

6-7 show a third embodiment.

The joint body 5 is formed into the same body as the member 2 by, for example, press molding, and an annular recess 7 in which the flange 3C can be accommodated is provided around the rising edge of the joint body 5.
A flange portion 3C is provided along the lower edge of the body portion 3b, and a joint body 5 made of a rust-resistant material and a cap body 3 made of a non-rust material are inserted into the hole 4, and the shell is inserted through the hole 4. Caulk the head 5a of the joint body 5 from above the hat body 3, and then attach the head 5a of the joint body 5.
A is formed into an enlarged head, and the head end 3a of the cap body 3 is press-fitted to the hole edge 4a, and the body surface 5b is press-fitted to the hole surface 4b via the body surface 3b in a hook-like manner. , which connects both members 1 and 2.

This embodiment has advantages similar to those of the second embodiment.

8-9 show a fourth embodiment.

The joint body 5 is formed into a rivet shape with an enlarged head 5C at the lower end, and the cap body 3 excludes the flange portion 3C, and is covered with a rivet-like joint body 5 made of a rust-resistant material. The cap body 3 made of raw material is inserted into the holes 4 of both members 1 and 2, and the head 5a of the joint body 5 protruding from the hole 4 is inserted into the cap body 3.
By caulking from above, the head 5a of the joint body 5 is formed into an enlarged head, and the head end 3a of the cap body 3 is pressed into the hole edge 4a, and the body surface 5b is attached to the hole surface 4b. Both members 1 and 2 are joined together by being crimped in a latch-like manner.

This embodiment is useful for joining the members 1 and 2 when it is difficult to mold the joint 5 into the same body as the member 2, and has the same advantages as the second embodiment.

10 and 11 show a fifth embodiment.

The joint body 5 is formed into a rivet shape with an enlarged head 5C at the lower end, and the cap body 3 is provided with a flange portion 3C along the lower edge of the body portion 3b. Insert the member 2 so as to sandwich the 7 lunges 3C of the cap body 3.
The holes 4 are aligned and polymerized, and the joint body 5 made of a rust-resistant material is inserted into the hole 4 of the member 2 and the cap body 3 made of a non-rust material, and the head 5a of the joint body 5 purchased from this hole 4 is inserted into the cap body 3. The body 3 is caulked from above to form the head 5a of the joint body 5 into an enlarged head, and the head end 3a of the cap body 3 is press-fitted to the hole edge 4a, and the body surface 5b is directly or directly attached to the hole surface 4b. Both members 1 and 2 are joined together by being crimped in a hook-like manner via the portion 3b.

This embodiment is useful for joining the members 1 and 2 when it is difficult to mold the joint 5 into the same body as the member 2, and has the same advantages as the first embodiment.

12 and 13 show a sixth embodiment.

The joint body 5 is formed into a round bar shape, and the cap body 3 is 11M.
A flange portion 3C is provided around the lower edge of both members 1 and 2, and an annular recessed portion 7 in which the flange 3C can be accommodated is provided along the hole edge of the overlapping surface of both members 1 and 2.
The cap bodies 3 are respectively inserted into the holes 4 of the cap bodies 3 made of a non-rust material, and the fittings 5 made of a rust-resistant material are inserted into the cap bodies 3 made of a non-rust material.
The heads 5a of the fittings 5, which are respectively turned out from both holes 4, are caulked from above the cap body 3 to form the heads 5a of the fittings 5 into an enlarged head shape, and the head end 3a of the cap body 3 is attached to the hole edge 4a. and the hole surface 4bk: Iii portion surface 5b is pressed against the body surface 3.
Both members 1 and 2 are joined together by being crimped in a hook-like manner via b.

This embodiment is useful for joining both members 1 and 2 when it is difficult to mold the joint 5 into the same body as the member 2, and is also useful when rust resistance is required at the end of the joint 5, Moreover, there are advantages similar to those of the second embodiment.

Figures 14 and 15 show a cooking spatula as an example employing the joint structure of the present invention.

The cooking spatula A has a hole 4 in a stainless steel spatula part corresponding to one member 1, and a joint 5 protruding from one side of an iron handle rod corresponding to the other member 2, and is made of this rust-resistant material. Insert the joint 5 together with the hat body 3 made of a non-rust material covering the same joint into the hole 4 of the spatula part, and swage the head 5a of the joint 5 from above the hat body 3 to form the head 5a into an enlarged head shape. At the same time, the head end 3a of the cap body 3 is pressed against the hole edge 4a, and the hole surface 4b
The body part surface 5b is crimped in a latch manner through the chest surface 3b to connect the spatula part and the handle rod.

The advantages of this riA spatula are as follows.

The joint head made of a rust-resistant material is covered with a cap body made of a non-rust material, and although the caulked joint structure has good productivity, there is no risk of rust occurring at the joint portion.

The coupling structure of the present invention is for coupling plate-shaped members to each other, coupling rod-shaped members to each other, and coupling plate-shaped members to rod-shaped members in various cooking utensils other than the above-mentioned cooking spatulas, various other products, buildings, etc. suitable for

<Effects of the Invention> ■ The substantial connecting element, that is, the fitting made of iron or the like, which has excellent bonding properties, is inexpensive, and is rust-resistant, is covered with a cap body made of rust-resistant stainless steel, etc., and the connecting part is Only the cap body made of rust-free material is exposed, and the actual connecting element, which is easy to rust, is completely isolated from the outside, ensuring sufficient bonding strength and preventing rust from occurring on the connecting element. It is a caulked connection with no cracks.

■ Since the cap itself that covers the joint is made of a non-rust material, there is no concern about rust even if it is damaged during crimping. The processing efficiency can be increased.

■ The structure is such that each component is molded individually and then caulked together, so each component is efficiently molded under optimal molding conditions. Construction can be done freely.

[Brief explanation of the drawing]

Figures 1 to 3 show a first embodiment of the joint structure of two members of the present invention, in which Figure 1 is a longitudinal sectional front view, Figure 2 is a plan view, and Figure 3 is a plan view.
The figure is an exploded front view showing the left half in section. Figures 4 and 5 are the second
An example is shown, FIG. 4 is a longitudinal sectional front view, and FIG. 5 is a plan view. 6 and 7 show the third embodiment, and FIG. 6 is a longitudinal sectional front view;
Figure 7 is a plan view. 8 and 9 show the fourth embodiment, and the eighth embodiment
The figure is a longitudinal front view, and FIG. 9 is a plan view. Figures 10 and 11 show the fifth embodiment, with Figure 10 being a longitudinal sectional front view and Figure 11 being a plan view. 12 and 13 show the sixth embodiment, with FIG. 12 being a longitudinal sectional front view and FIG. 13 being a plan view. FIG. 14 is a perspective view of a 14-piece spatula employing the coupling structure of the present invention, and FIG. 15 is an enlarged cross-sectional view taken along the double-xv line. 16 and 17 are longitudinal sectional front views showing a conventional example. In the figure, 1.2 is the member 3, the cap body 3a is the head end 4, the hole 4a is the hole edge 5 is the joint body sa, and sc is the head.

Claims (1)

[Claims] A hole is opened in one member, a joint made of a rust-resistant material is provided on one side of the other member, and this joint is inserted into the hole of the one member together with a cap made of a rust-resistant material covering the joint. A two-member joint structure in which the joint head is attached to the top of the hat body, and the head end of the hat body is crimped to press against the hole edge.