JP2804380B2 - Fittings and structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling device and a coupling structure which can be rapidly coupled to a male screw or similar member.

[0002]

2. Description of the Related Art In the Japanese Patent Application No. 1-171948, the applicant of the present invention disclosed a radial base having a base made of a plate-like material, an outer peripheral end connected to the base and a central end free. And a coupling device having a plurality of engagement pieces disposed in the coupling member and capable of quickly coupling to a male screw or a similar member, and a coupling structure thereof.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a coupling device and a coupling structure proposed by the present applicant, in which coupling between the coupling device and a male screw or a similar member is made easier, and It is an object of the present invention to provide a coupling device and a coupling structure capable of preventing a runout of a male screw or a similar member.

[0004]

One of the fasteners according to the present invention comprises a base made of a plate-like material, and is separated from the base by leaving only the outer peripheral end, leaving the outer peripheral end closed. A plurality of guide holding pieces which are continuous with the base and whose center side end is a free end, and are radially arranged,
Each is cut off leaving only the outer peripheral end from the base, the outer peripheral end is continuous with the base and the center end is a free end, and is coaxial with the first engagement piece. And a plurality of engaging pieces radially arranged at intervals in the axial direction, and the guide holding piece protrudes at least partially from the base while bending inwardly convexly. It has a valgus curved portion.

Further, in the coupling structure according to the present invention, a male screw or a circumferentially extending annular groove is provided on an outer peripheral surface between a center side end of the guide holding piece and a center side end of the engagement piece of the coupling tool. Inserting the provided annular groove member, pressing the inner surface of the valgus curved portion of the guide holding piece against the external thread or the outer peripheral surface of the annular groove member, and pressing the center side end of the engagement piece to the It is formed by engaging with a thread groove of a male screw or the annular groove of the annular groove member.

In another case of the fastener according to the present invention,
A hole flange is provided around a hole provided in the base instead of the guide holding piece.

[0007] A coupling structure corresponding to this coupling tool includes an annular groove member provided with an external thread or an annular groove extending in the circumferential direction between the hole of the coupling tool and the center end of the engaging piece on the outer peripheral surface. It is inserted.

[0008]

According to the present invention, when a guide holding piece is provided on the coupling tool, when a male screw (or an annular groove member) is pushed in the axial direction between the center side ends of the guide holding piece and the engaging piece, the guide holding piece is provided. Is elastically deformed, the inner surface of the valgus curved portion of the guide holding piece is pressed against the outer peripheral surface of the male screw (or the annular groove member), and the engaging piece is elastically bent and deformed. The center end of the mating piece goes beyond the thread of the male screw (or the convex portion between the annular grooves of the annular groove member). Then, when the pushing of the male screw (or the annular groove member) is stopped, the center side end of each engagement piece engages with the screw groove of the male screw (or the annular groove member) at that position, and the coupling tool is engaged at that position. An external thread (or an annular groove member) is coupled.

In the process of axially pushing the male screw (or annular groove member) between the center-side ends of the guide holding piece and the engagement piece as described above, the inner surface of the valgus curved portion of the guide holding piece becomes male. Since the outer surface of the screw (or the annular groove member) is pressed, the male screw (or the annular groove member) is guided along the axis of the guide holding piece and the engagement piece. The guide holding piece and the engagement piece can be easily pushed between the center-side ends.

Further, even after the connection with the male screw (or the annular groove member) is completed, the inner surface of the valgus curved portion of the guide holding piece presses the outer peripheral surface of the male screw (or the annular groove member). The deflection of the male screw (or the annular groove member) with respect to the coupling tool can be prevented.

In the case where a groove engaging portion which is bent or bent inward from the valgus curved portion is formed at the center end of the guide holding piece, the groove engaging portion is formed with a male screw thread groove. (Or the annular groove of the annular groove member) to further increase the bonding strength.

When a hole flange is provided around a hole provided in the base instead of the guide holding piece, a male screw (or an annular groove member) is provided between the hole and the center end of the engagement piece. In the process of pushing in the direction, the inner surface of the hole flange guides the external thread (or annular groove member) along the axis of the hole flange and the engagement piece, so that the external thread (or annular groove member)
Can be easily pushed between the center-side ends of the engagement pieces.

Further, even after the completion of the connection operation with the male screw (or the annular groove member), the inner surface of the hole flange is opposed to the outer peripheral surface of the male screw (or the annular groove member), so that the male screw with respect to the coupling tool is formed. (Or the annular groove member) can be prevented from swinging.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

1 to 9 show an embodiment of the fastener according to the present invention.

In this embodiment, the coupling 1 is formed by press-forming a metal plate having a suitable elasticity such as steel, stainless steel, spring steel or the like, thereby forming a base 2, a plurality of guide holding pieces 3, and a plurality of engagements. The piece 4 is formed integrally. The base 2 has a rectangular first main surface portion 2a, a pair of side surface portions 2b bent at right angles from both sides of the first main surface portion 2a, and a further right angle direction from these side surface portions 2b. A pair of second main surface portions 2c bent inward (in a direction parallel to one main surface portion 2a) are integrally provided, and a slight gap 5 is provided between the second main surface portions 2c.

Each of the guide holding pieces 3 is formed by cutting and raising only the outer peripheral end 3a from the first main surface 2a of the base 2, and the outer peripheral end 3a is connected to the first main surface 2a. At the same time, the center side end 3b is a free end and extends radially. As shown in FIG. 7, each of the guide holding pieces 3 is entirely curved inwardly convexly while the first main surface 2
a valgus curving portion that protrudes from a to the second main surface portion 2c side. 4 and 8, a portion of the first main surface 2a of the base 2 between the center-side ends 3b of the guide holding pieces 3 and a side of the guide holding pieces 3 between the side ends. The part is stamped as one continuous hole 6.
A linear embossed portion 7 is provided near both ends of the first main surface 2a.

Each of the engagement pieces 4 is formed by cutting and raising only the outer peripheral end 4a from the pair of second main surfaces 2c of the base 2, and connecting the outer peripheral end 4a to the second main surface 2c. In addition, the center side end 4b is a free end and extends radially. As best shown in FIG.
Are raised in the same direction as the guide holding pieces 3 while being curved concavely inward. As shown in FIG. 3, the portion between the center-side ends 4b of the engagement pieces 4 and the portion between the side ends of the engagement pieces 4 in the second main surface portion 2c are one continuous portion. Each engaging piece 4
Are opposed to each other so as to form one hole.

Next, a description will be given of a coupling structure between the coupling tool 1 and the male screw.

As shown in FIG. 9, a male screw 9 is inserted between the center side ends 3b, 4b of the guide holding piece 3 and the engaging piece 4 in the direction of the arrow in the axial direction (the guide holding piece 3 and the engaging piece 4 are cut). When the guide holding piece 3 is pushed in, the inner face of the guide holding piece 3 is pressed against the outer peripheral surface of the male screw 9 and the engaging piece 4 is elastically bent. By the deformation, the center end 4b of the engagement piece 4 goes beyond the thread of the male screw 9. When the pushing of the male screw 9 is stopped, the center side end 4b of each engaging piece 4 is engaged with the screw groove of the male screw 9 at that position. Instead, the male screw 9 can be quickly screwed into the center end 4b of the engagement piece 4, and the coupling tool 1 and the male screw 9 can be connected at that position.

In the process of pushing the male screw 9 axially between the center-side ends 3b, 4b of the guide holding piece 3 and the engaging piece 4 as described above, the inner surface of the guide holding piece 3 Since the male screw 9 is guided along the axis of the guide holding piece 3 and the engaging piece 4 because the surface is pressed, the male screw 9 is moved between the center-side ends 3b, 4b of the guide holding piece 3 and the engaging piece 4. Can be easily pushed into.

Furthermore, even after the completion of the connection operation with the male screw 9, the inner surface of the guide holding piece 3 presses the outer peripheral surface of the male screw 9, thereby preventing the male screw 9 from swinging with respect to the coupling tool 1. it can.

If the coupling position of the male screw 9 with respect to the engaging piece 4 when the pushing of the male screw 9 is stopped is deviated from a desired position, the male screw 9 is rotated and the center of the engaging piece 4 is rotated. Since the side end 4b moves relatively axially along the thread groove of the male screw 9, the coupling position can be precisely adjusted to a desired position.

Even if a force is applied to the male screw 9 in the pulling-out direction, the engaging piece 4 is inclined in the pushing direction of the male screw 9 with respect to a plane perpendicular to the axial direction. The center end 4b is more strongly abutted against the male screw 9 and the male screw 9 does not come off (assuming that the connecting piece 1 is engaged with the engaging piece 4 before the male screw 9 is pushed in). Even though the structure is not inclined in the pushing direction, the diameter between the center-side ends 4b of the engaging pieces 4 is smaller than the root diameter of the male screw 9, and when the male screw 9 is pushed in, these engaging pieces are 4 is the male screw 9
If a force is applied to the male screw 9 in the pulling-out direction, the male screw 9
Does not fall out).

FIG. 10 shows an embodiment of an annular groove member which can be coupled to the coupling 1 instead of the male screw 9.
The annular groove member 10 is rod-like and has a shape similar to a screw, but a plurality of grooves 10a formed on the outer periphery thereof are not spiral but extend in the circumferential direction in an annular shape.

The annular groove member 10 is also pushed in the axial direction between the guide holding piece 3 and the center end 3b of the engaging piece 4 of the coupling tool 1 in the axial direction, thereby similarly to the case of the male screw 9. It can be coupled with the coupling tool 1. (However, in the coupling structure of the annular groove member 10 and the coupling tool 1, even if the annular groove member 10 is rotated, the engaging piece 4 continues to be engaged with the same annular groove 10 a, so Unlike the case of the coupling structure, the coupling position between the coupling tool 1 and the annular groove member 10 does not change).

FIGS. 11 and 12 show another embodiment of the coupling according to the present invention.

In the coupling 1 of the present embodiment, each guide holding piece 3 is a valgus curved portion that protrudes from the first main surface 2a of the base 2 to the second main surface 2c while bending inwardly. 3c
And a groove engaging portion 3d that curves or bends inward from the valgus bending portion 3c near the center end 3b. Other configurations are the same as those of the above embodiment.

In this embodiment, the same operation and effects as those of the coupler 1 of the above-described embodiment can be obtained. In addition, as shown in FIG. And the coupling strength can be further increased.

FIGS. 13 and 14 show still another embodiment of the coupler according to the present invention.

In the fastener 1 of this embodiment, the guide holding piece 3 of each of the above embodiments is replaced by burring.
A hole 11 and a hole flange 12 surrounding the hole 11 are formed in the first main surface 2 a of the base 2. The hole 11
The hole flange 12 is coaxial with the engagement piece 4.
The hole flange 12 protrudes from the first main surface portion 2a toward the second main surface portion 2c while bending inwardly convexly. Other configurations are the same as those in the above embodiments.

In this embodiment, as shown in FIG.
The coupling tool 1 and the male screw 9 (or the annular groove member 10) are joined by pushing the male screw 9 (or the annular groove member 10) in the axial direction between the center member 1 and the center end 4b of the engagement piece 4. Can be.

In this case, in the process of pressing the male screw 9 (or the annular groove member 10) axially between the hole 11 and the center end 4b of the engaging piece 4, the inner surface of the hole flange 12 is formed with the male screw 9 (or the annular member). In order to guide the groove member 10) along the axis of the hole flange 12 and the engagement piece 4, the male screw 9 (or the annular groove member 10) can be easily pushed between the center end 4b of the engagement piece 4. it can.

Further, the male screw 9 (or the annular groove member 1)
0), the inner surface of the hole flange 12 is opposed to the outer peripheral surface of the male screw 9 (or the annular groove member 10), so that the male screw 9 (or the annular groove member 10 ) Can be prevented.

In the above embodiments, the coupling is made of metal, but other materials such as synthetic resin other than metal can be used as the material of the coupling.

[0036]

As described above, the present invention makes it easier to connect the connecting tool to the male screw or similar member,
It is possible to obtain excellent effects such as prevention of deflection of a male screw or a similar member with respect to the coupling tool.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a coupler according to the present invention.

FIG. 2 is a front view showing an embodiment of the coupler.

FIG. 3 is a plan view showing an embodiment of the coupler.

FIG. 4 is a bottom view showing an embodiment of the coupler.

FIG. 5 is a side view showing an embodiment of the coupler.

FIG. 6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a sectional view taken along line VII-VII in FIG. 3;

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a sectional view showing an embodiment of a coupling structure of the coupling tool and the male screw.

FIG. 10 is a side view showing an embodiment of the annular groove member according to the present invention.

FIG. 11 is an enlarged sectional view showing a main part of another embodiment of the fastener according to the present invention.

FIG. 12 is an enlarged sectional view showing an embodiment of a coupling structure of the coupling tool and the male screw of FIG. 11;

FIG. 13 is an enlarged sectional view showing a main part of still another embodiment of the coupler according to the present invention.

FIG. 14 is an enlarged sectional view showing an embodiment of a coupling structure of the coupling tool and the male screw of FIG. 13;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 coupler 2 base 3 guide holding piece 3a outer peripheral end of guide holding piece 3b center end of guide holding piece 3c valgus curved portion of guide holding piece 3d groove engaging part of guide holding piece 4 engaging piece 4a engaging Outer end 4b Center end of engaging piece 9 Male thread 10 Annular groove member 10a Annular groove 11 Hole 12 Hole flange

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16B 37 / 03,21 / 20

Claims (6)

(57) [Claims] 1. A base made of a plate-shaped material and separated from each other by cutting off only the outer peripheral end from the base. The outer peripheral end is connected to the base and the center end is a free end. And a plurality of guide holding pieces arranged radially, each of which is separated from the base by leaving only the outer peripheral end thereof, and the outer peripheral end is connected to the base and the center end is free. And a plurality of radially disposed engaging pieces coaxially and axially spaced from the first engaging piece, wherein the guide holding piece is at least one end. A coupling device comprising: a valgus curved portion that protrudes from the base while being curved inwardly convexly in the portion. 2. The coupling according to claim 1, wherein a center-side end of the guide holding piece forms a groove engaging portion that curves or bends inward from the valgus bending portion. Utensils. 3. A base made of a plate-like material, a hole provided in the base, a hole flange provided around the hole in the base, and only an outer peripheral end of the base is cut off. A plurality of radially arranged members which are separated from each other and are coaxial and axially spaced from the hole, with the outer peripheral side end being continuous with the base and the central side end being a free end. A coupling tool having a joint piece. 4. A male screw or a circumferentially extending annular groove is provided on an outer peripheral surface between a center side end of the guide holding piece and a center side end of the engagement piece of the coupling tool according to claim 1. Inserting an annular groove member, pressing the inner surface of the valgus curved portion of the guide holding piece against the external thread or the outer peripheral surface of the annular groove member, and pressing the center end of the engagement piece to the male screw. A coupling structure which is engaged with a screw groove or the annular groove of the annular groove member. 5. A male screw or a circumferentially extending annular groove is provided on an outer peripheral surface between a center side end of the guide holding piece and a center side end of the engagement piece of the coupling tool according to claim 2. Inserting the annular groove member, pressing the inner surface of the valgus curved portion of the guide holding piece against the outer thread of the male screw or the outer circumferential surface of the annular groove member, the center side end of the engaging piece and the guide holding piece A coupling structure in which the groove engaging portion is engaged with the thread groove of the male screw or the annular groove of the annular groove member. 6. An annular groove member provided on an outer peripheral surface of a male screw or an annular groove extending in a circumferential direction between a center side end of the hole and the engagement piece of the coupling tool according to claim 3 is inserted. Connection structure.