JPH04277310A - Fitting member and fitting structure - Google Patents

Abstract

PURPOSE:To facilitate connection of a fitting member with a male screw or the like, and to prevent the oscillation of the male screw in respect to fitting member. CONSTITUTION:A plurality of holding pieces 3 and engaging pieces 4, being spirally formed and coaxially arranged, have respectively center side ends 3b, 4b as free ends separated from a base 2 composed of plate-like material while remaining only outer peripheral side ends 3a, 4a. An outward bending part projecting from the base 2 is formed on at least one part of the guide holding piece 3, projectingly to the inside. A male screw or the like is penetrated through the center side ends 3b, 4b of the guide holding piece and the engaging piece. Then, the guide holding piece 3 pressurizes the male screw 9 from the side direction to guide it in an axial direction. Inserting is thus facilitated and oscillation of the male screw 9 in respect to a fitting member 1 is prevented. Then, the center side end 4b of the engaging piece is engaged with the screw groove of the male screw 9.

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 its coupling structure that can be quickly coupled to a male thread or similar member.

0002

[Prior Art] In Japanese Patent Application No. 1-171948, the present applicant has proposed a base made of a plate-like material, each having an outer circumferential end continuous with the base and a central end being a free end, each having a radial shape. The present invention has proposed a coupling device having a plurality of engaging pieces disposed on the surface thereof, which can be quickly coupled to a male screw or similar member, and a coupling structure thereof.

0003

SUMMARY OF THE INVENTION An object of the present invention is to make it easier to connect the connector and a male screw or similar member, and to improve the connection between the connector and the male screw or similar member in the connector and the connector structure proposed by the applicant. It is an object of the present invention to provide a coupling device and a coupling structure that can prevent runout of a male screw or similar member.

0004

[Means for Solving the Problems] One of the coupling devices according to the present invention has a base made of a plate-shaped material, and each of the couplings is cut away from the base with only the outer peripheral end left uncut, and the outer peripheral end is cut off from the base. a plurality of guide holding pieces that are continuous to the base and are arranged radially, with the center side end being a free end;
Each piece is cut away from the base with only the outer peripheral end left uncut, and the outer peripheral end is continuous with the base and the center end is a free end, coaxial with and relative to the first engagement piece. and a plurality of radially arranged engagement pieces spaced apart in the axial direction, and at least a portion of the guide holding piece protrudes from the base while convexly curving inward. It has a valgus curved part.

Further, the coupling structure according to the present invention has a male thread or an annular groove extending in the circumferential direction between the center-side ends of the guide holding piece and the center-side end of the engagement piece of the coupling tool. The provided annular groove member is inserted, and the inner surface of the valgus curved portion of the guide holding piece is pressed against the male screw or the outer peripheral surface of the annular groove member, and the center side end of the engaging piece is It is formed by engaging with the thread groove of the male thread or the annular groove of the annular groove member.

[0006] In other cases of the coupling device according to the present invention,
Instead of the guide holding piece, a hole flange is provided around the hole provided in the base.

A coupling structure corresponding to this coupling tool includes an annular groove member provided with a male thread or an annular groove extending in the circumferential direction between the hole of the coupling tool and the center side end of the engaging piece. It will be inserted.

[0008]

[Operation] In the present invention, when a guide holding piece is provided on the coupling tool, when a male thread (or annular groove member) is pushed in the axial direction between the center side ends of the guide holding piece and the engaging piece, the guiding holding piece By elastically bending and deforming, the inner surface of the valgus curved portion of the guide holding piece comes to press against the outer circumferential surface of the male screw (or annular groove member), and the engaging piece is elastically bending and deformed, causing the engagement. The center side end of the mating piece goes over the thread of the male thread (or the convex portion between the annular grooves of the annular groove member). Then, when you stop pushing the male screw (or annular groove member),
At that position, the center side end of each engagement piece engages with the thread groove of the male thread (or annular groove member), and at that position, the coupling tool and the male thread (or annular groove member) are coupled.

Furthermore, in the process of pushing the male thread (or annular groove member) in the axial direction between the center-side ends of the guide holding piece and the engaging piece, the inner surface of the valgus curved portion of the guide holding piece is male. Since the outer peripheral surface of the screw (or annular groove member) is pressed, the male screw (or annular groove member) is guided along the axis of the guide holding piece and the engagement piece, so the male screw (or annular groove member) is It can be easily pushed between the center side ends of the guide holding piece and the engaging piece.

Furthermore, even after the connection work with the male screw (or annular groove member) is completed, the inner surface of the valgus curved portion of the guide holding piece presses against the outer peripheral surface of the male screw (or annular groove member), so that It is possible to prevent the male screw (or annular groove member) from swinging out with respect to the coupling tool.

[0011] In addition, when a groove engaging portion is formed at the center end of the guide holding piece, the groove engaging portion curves or bends inward from the valgus curved portion. (or the annular groove of the annular groove member) to further increase the bonding strength.

In addition, when a hole flange is provided around the hole provided in the base instead of the guide holding piece, a male thread (or an annular groove member) can be inserted between the hole and the center end of the engaging piece. In the process of pushing in the direction, the inner surface of the hole flange guides the male thread (or annular groove member) along the axis of the hole flange and the engagement piece, so the male thread (or annular groove member)
can be easily pushed between the center side ends of the engagement piece.

Furthermore, even after the connection work with the male screw (or annular groove member) is completed, the inner surface of the hole flange faces the outer circumferential surface of the male screw (or annular groove member), so that the male screw to the coupling tool is (or the annular groove member) can be prevented from wobbling.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on embodiments shown in the drawings.

FIGS. 1-9 show one embodiment of a coupling device according to the invention.

In this embodiment, the connector 1 is formed by press-forming a metal plate material having appropriate elasticity such as steel, stainless steel, spring steel, etc., and includes a base 2, a plurality of guiding and holding pieces 3, and a plurality of engagement members. The piece 4 is integrally formed. The base portion 2 includes a rectangular first main surface portion 2a, a pair of side surface portions 2b bent in a right angle direction from both sides of the first main surface portion 2a, and a pair of side surface portions 2b bent in a perpendicular direction (first direction) from these side surface portions 2b. It integrally has a pair of second main surface parts 2c bent inward (parallel to one main surface part 2a), and a slight gap 5 is provided between the second main surface parts 2c.

Each of the guide and holding pieces 3 is cut and raised from the first main surface 2a of the base 2, leaving only the outer peripheral end 3a uncut, and the outer peripheral end 3a is continuous with the first main surface 2a. At the same time, the center side end 3b is set as a free end and extends radially. As clearly shown in FIG. 7, each guide holding piece 3 is curved convexly inward as a whole, while the first main surface portion 2
It constitutes a valgus curved portion that protrudes from a toward the second main surface portion 2c side. As clearly shown in FIGS. 4 and 8, a portion of the first main surface 2a of the base 2 between the center side ends 3b of each guide and holding piece 3 and a portion between the side ends of each guide and holding piece 3. The part is punched out as one continuous hole 6. Linear embossed portions 7 are provided near both ends of the first main surface portion 2a.

Each of the engaging pieces 4 is cut and raised from the pair of second main surfaces 2c of the base 2, leaving only the outer peripheral end 4a uncut, and the outer peripheral end 4a is continuous with the second main surface 2c. At the same time, the center side end 4b is set as a free end and extends radially. As shown in FIG. 7, each engagement piece 4
The entire guide and holding piece 3 is curved concavely inward and protrudes in the same direction as the guide holding piece 3. As clearly shown in FIG. 3, the portions of the second main surface portion 2c between the center side ends 4b of the respective engaging pieces 4 and the portions between the side ends of the respective engaging pieces 4 form one continuous portion. Each engagement piece 4 is punched out as a recess 8.
The recesses 8 face each other as if forming one hole.

Next, the connection structure between the connector 1 and the male thread will be explained.

As shown in FIG. 9, a male screw 9 is inserted between the center side ends 3b and 4b of the guide holding piece 3 and the engaging piece 4 in the direction of the axial arrow (the guiding holding piece 3 and the engaging piece 4 are cut). When pushed in the raised direction), the guide holding piece 3 is elastically bent and deformed, so that the inner surface of the guide holding piece 3 comes to press against the outer peripheral surface of the male screw 9, and the engaging piece 4 is elastically bent. By deforming, the center side end 4b of the engagement piece 4 passes over the thread of the male screw 9. Then, when the pushing of the male screw 9 is stopped, the center side end 4b of each engaging piece 4 engages with the thread groove of the male screw 9 at that position, so that the male screw 9 can be rotated with respect to the coupling tool 1. The male screw 9 can be quickly screwed onto the center side end 4b of the engagement piece 4, and the connector 1 and the male screw 9 can be connected at that position.

In addition, in the process of pushing the male screw 9 in the axial direction between the center side ends 3b and 4b of the guide holding piece 3 and the engaging piece 4 as described above, the inner surface of the guide holding piece 3 is pressed against the outer periphery of the male screw 9. Since the surface is pressed, the male screw 9 is guided along the axis of the guide holding piece 3 and the engaging piece 4, so the male screw 9 is guided between the center side ends 3b, 4b of the guiding holding piece 3 and the engaging piece 4. can be easily pushed into the

Furthermore, even after the connection work with the male screw 9 is completed, the inner surface of the guide holding piece 3 presses the outer circumferential surface of the male screw 9, thereby preventing the male screw 9 from swinging against the coupling tool 1. can.

Note that if the coupling position of the male screw 9 to the engagement piece 4 is shifted from the desired position when the male screw 9 is stopped being pushed in, rotating the male screw 9 will cause the center of the engagement piece 4 to Since the side end 4b relatively moves in the axial direction along the thread groove of the male screw 9, the coupling position can be precisely adjusted to a desired position.

Furthermore, even if a force is applied to the male screw 9 in the pulling direction, the engaging piece 4 is tilted in the pushing direction of the male screw 9 with respect to the plane perpendicular to the axial direction. The center end 4b will come into even stronger contact with the male screw 9, and the male screw 9 will not come off. Even if 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 4 is male screw 9
If the male screw 9 is tilted in the pushing direction, when a force is applied to the male screw 9 in the pulling direction, the male screw 9 will still be tilted.
cannot be removed).

FIG. 10 shows an embodiment of an annular groove member that can be connected to the coupling device 1 instead of the external thread 9. As shown in FIG. This annular groove member 10 is rod-shaped and has a shape similar to a screw, but the plurality of grooves 10a formed on its outer periphery are not spiral, but extend annularly in the circumferential direction.

[0026] Such an annular groove member 10 is also inserted in the axial direction between the center side ends 3b and 4b of the guide holding piece 3 and the engaging piece 4 of the coupling tool 1, in the same manner as the case of the external thread 9. It can be combined with the connector 1. (However, in this coupling structure between the annular groove member 10 and the coupling tool 1, even if the annular groove member 10 is rotated, the engagement piece 4 continues to be engaged with the same annular groove 10a, 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 a coupling device according to the invention.

In the coupler 1 of this embodiment, each guide holding piece 3 has a valgus curved portion that protrudes from the first main surface 2a of the base 2 toward the second main surface 2c while convexly curving inward. 3c, and a groove engaging portion 3d that curves or bends inward from the valgus curved portion 3c near the center end 3b. The other configurations are the same as those in the previous embodiment.

In this embodiment, in addition to obtaining the same effects as the coupler 1 of the previous embodiment, as shown in FIG. The bonding strength can be further increased by engaging the annular groove 10a of the annular groove 10a.

FIGS. 13 and 14 show yet another embodiment of a coupling device according to the invention.

In the coupling tool 1 of this embodiment, instead of the guide holding piece 3 of each of the embodiments described above, by burring processing,
A hole 11 and a hole flange 12 surrounding the hole 11 are formed in the first main surface 2a of the base 2. Said hole 11
The hole flange 12 is coaxial with the engagement piece 4. Further, the hole flange 12 is curved inwardly and protrudes from the first main surface 2a toward the second main surface 2c. The other configurations are the same as in each of the embodiments described above.

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

In this case, in the process of pushing the male screw 9 (or the annular groove member 10) between the hole 11 and the center end 4b of the engagement piece 4 in the axial direction, the inner surface of the hole flange 12 becomes the male screw 9 (or the annular groove member 10). 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 side ends 4b of the engagement piece 4. can.

Furthermore, the male screw 9 (or the annular groove member 10
), the inner surface of the hole flange 12 is opposed to the outer peripheral surface of the male thread 9 (or annular groove member 10), so that the male thread 9 (or annular groove member 10) is connected to the coupling tool 1. It is possible to prevent runout.

In each of the above embodiments, the connector is made of metal, but it is also possible to use other materials other than metal, such as synthetic resin, as the material for the connector.

[0036]

Effects of the Invention As described above, the present invention not only makes it easier to connect a connector and a male thread or similar member,
This provides excellent effects such as being able to prevent the male screw or similar member from swinging out relative to the coupling.

[Brief explanation of the drawing]

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

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

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

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

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

FIG. 6 is a sectional view taken along line VI-VI in FIG. 3;

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

FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 6;

FIG. 9 is a cross-sectional view showing an embodiment of the coupling structure between the coupling tool and the male thread.

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

FIG. 11 is an enlarged sectional view showing essential parts of another embodiment of the coupling device according to the present invention.

FIG. 12 is an enlarged cross-sectional view showing an example of the coupling structure between the connector and the male screw in FIG. 11;

FIG. 13 is an enlarged sectional view showing essential parts of still another embodiment of the coupling device according to the present invention.

FIG. 14 is an enlarged cross-sectional view showing an example of the coupling structure between the connector and the male screw in FIG. 13;

[Explanation of symbols]

1. Connector 2 Base 3 Guide holding piece 3a Outer edge of guide holding piece 3b Center side end of guide holding piece 3c Valgus curved part of guide holding piece 3d Groove engagement part of guide holding piece 4 Engagement piece 4a　Outer peripheral side end of engagement piece 4b Center side end of engagement piece 9 Male thread 10 Annular groove member 10a Annular groove 11 Hole 12 Hole flange

Claims (6)

[Claims] 1. A base made of a plate-shaped material, each of which is separated from the base with only the outer peripheral end left uncut, the outer peripheral end being continuous with the base, and the center end being a free end. and a plurality of guiding and holding pieces arranged radially, each of which is separated from the base with only the outer peripheral end left uncut, and the outer peripheral end is continuous with the base and the central end is free. and a plurality of radially disposed engaging pieces coaxially and spaced apart from each other in the axial direction with respect to the first engaging piece, the guide holding piece having at least one A coupler characterized in that the part has a valgus curved part that protrudes from the base while curving inwardly in a convex manner. 2. The joint according to claim 1, wherein the center-side end portion of the guide holding piece forms a groove engaging portion that curves or bends inward from the valgus curved portion. Ingredients. 3. A base made of a plate-shaped material, a hole provided in the base, and a hole flange provided around the hole of the base, each with only an outer peripheral end left uncut from the base. a plurality of radially disposed locks, which are separated, have their outer circumferential ends continuous with the base, and have their center ends as free ends, coaxially with respect to the hole and spaced apart in the axial direction; A connector comprising a piece. 4. The coupling device according to claim 1, wherein a male thread or an annular groove extending in the circumferential direction is provided on the outer peripheral surface between the center side ends of the guide holding piece and between the center side ends of the engagement piece. The annular groove member is inserted through the guide holding piece, and the inner surface of the valgus curved portion of the guide holding piece is pressed against the male screw or the outer peripheral surface of the annular groove member, and the center side end of the engagement piece is pressed against the male screw. A coupling structure that engages with a thread groove or the annular groove of the annular groove member. 5. The coupling device according to claim 2, wherein a male thread or an annular groove extending in the circumferential direction is provided on the outer peripheral surface between the center side ends of the guide holding piece and between the center side ends of the engagement piece. The annular groove member is inserted through the guide holding piece to press the inner surface of the valgus curved portion of the guide holding piece against the male screw or the outer circumferential surface of the annular groove member, and the center side end of the engagement piece and the guide holding piece A coupling structure in which the groove engaging portion is engaged with the thread groove of the male thread or the annular groove of the annular groove member. 6. A male thread or an annular groove extending in the circumferential direction is inserted between the hole of the coupling device according to claim 3 and the center side end of the engaging piece, and an annular groove member provided on the outer peripheral surface is inserted thereinto. A bonding structure.