JPH07293536A - Nut and nut-holding member - Google Patents

Abstract

PURPOSE:To provide a nut and a nut-holding member which has no projecting part from the surface of a structure member, and can be installed securely in a T-groove. CONSTITUTION:A nut 10 which is inserted in a T-groove formed on the side surface of a long size structure member, and held at a specific position in the T-groove by a nut holding member 20, is provided. On a pair of side surfaces opposing each other making the female screw 11 of the nut as the center, installing members including a recess and a projection are formed, and a receiving member 14 energized and abutted elastically at the outer side in the axial direction of the female screw 11 by the nut holding member 20 is formed at the lower side of one side receiving member 12. The nut holding member 20 has an engaging member 22 to engage to the installing member 12 of the nut 10; elastic pieces 24 abutting to the receiving members 14 of the nut 10 provided on both sides making the locking member 22 as the center; and support pieces 26 extending from the elastic pieces 24 and abutted elastically to the bottom in the T-groove.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nut for inserting a nut into a T groove formed in a structural member and fixing other parts to the structural member, and holding the nut in the T groove. The present invention relates to a nut holding member.

[0002]

2. Description of the Related Art Conventionally, there are generally two ways of mounting a nut in a T groove. One is when at least one end of the T-groove is open, insert a nut of a predetermined size from this open end, slide it to the desired position, and screw the bolt together with other mounting parts. It is a combination.

Another aspect is a case where both ends of the T-groove are closed, and a nut is directly inserted and fixed from the opening of the upper surface of the T-groove. In the latter case, as shown in FIG. 6, the nut 4 insertable from the upper surface is held in the T-groove 2 of the structural member 1 by the nut holding member 5 formed by bending a metal piece, and the T-groove 2 is formed. The nut 4 is locked at a predetermined position inside. At this time, the engagement piece 6 of the nut holding member 5 is
The nut 4 is fixed in the T groove 2 by engaging with the upper part of the outer surface of the.

[0004]

In the case of the above-mentioned conventional technique, the engaging piece 6 of the nut holding member 5 is the upper portion of the outer surface of the T groove 2,
That is, it protrudes to the surface of the structural material 1, and this protruding portion is sandwiched between the component mounted on the structural material 1 and the structural material 1, which causes a decrease in mounting strength and rattling.

The present invention has been made in view of the above-mentioned problems of the prior art, and provides a nut and a nut holding member which have no portion protruding from the surface of the structural material and can be securely mounted in the T groove. The purpose is to

[0006]

The present invention relates to a nut which is inserted into a T-groove formed on the side surface of a long structural material and is held at a predetermined position in the T-groove by a nut holding member. A mounting portion such as a recess or a convex portion is formed on a pair of side surfaces facing each other around the female screw portion of the nut, and the nut holding member is provided below the shaft of the female screw portion on one side of the mounting portion. The nut is formed with a receiving portion that elastically urges outward in the direction to come into contact with the nut. Further, a cutout portion is formed in the longitudinal direction of the T groove in the lower part of the pair of side surfaces orthogonal to the side surface on which the mounting portion of the nut is formed.

Further, the present invention is a nut holding member for holding a nut inserted in a T groove formed on a side surface of a long structural member at a predetermined position, the nut holding member being formed on a pair of side surfaces of the nut. Engaging portions that engage with mounting portions such as concave portions or convex portions, elastic pieces provided on both sides of the engaging portion as a center and abutting against the receiving portion of the nut, and the T-slot extended from the elastic pieces. It is a nut holding member which has a support piece which elastically contacts the bottom part inside. Further, two pairs of the elastic pieces are formed in a substantially V shape symmetrically to each other.

[0008]

According to the nut and the nut holding member of the present invention, the nut in the T-shaped groove is formed by the support piece and the elastic piece of the nut holding member.
The nut is urged outward from the inside of the T groove via the receiving portion to hold the nut at a desired position in the T groove.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, this embodiment is composed of a quadrilateral nut 10 having a female screw portion 11 in the center and a nut holding member 20 for holding the nut 10. As shown in FIGS. 1 and 3, the nut 10 has a mounting portion 12 formed of a recess formed on a pair of side surfaces facing each other around the female screw portion 11 of the nut 10. On the lower side, which is the side, the receiving portion 1 of the nut holding member 20 in which an inclined surface is formed on the edge of the recess.
4 are provided.

As shown in FIGS. 1 and 3, the lower part of the pair of side surfaces orthogonal to the side surface on which the mounting portion 12 of the nut 10 is formed, on the side on which the receiving portion is formed, extends in the longitudinal direction of the side surfaces. A notch portion 16 is formed along the cutout portion 16 and an upper portion thereof is formed into a pair of flange portions 17.

As shown in FIG. 2, this nut 10 is inserted into a T groove 32 formed on the side surface of a long structural material 30, and is used to hold the nut 10 at a predetermined position. The member 20 is attached. As shown in FIGS. 1, 2, and 4, this nut holding member 20 is
It has a pair of engaging portions 22 that engage with the attaching portion 12 of the nut 10. Further, dogleg-shaped elastic pieces 24 that come into contact with the receiving portion 14 of the nut 10 are formed on both sides of the engaging portion 22 as a center. Two elastic pieces 24 are formed so as to face each other, one pair on each side, and four support pieces 26 that extend from the elastic pieces 24 and elastically contact the bottom of the T groove 32 are provided. ing. This support piece 24
Are positioned so that the support pieces 24 facing each other are staggered, as shown in FIG.

As shown in FIG. 4, the nut holding member 20 is formed by punching out spring steel and bending an elastic piece 24 around the engaging portion 22 in a dogleg shape symmetrically. is there. The elastic piece 24 may be integrally formed of synthetic resin.

Next, a method of using the nut 10 and the nut holding member 20 of this embodiment will be described. First, as shown in FIG. 1, the nut holding member 20 is attached to the mounting portion 12 of the nut 10.
The nut 10 is held by the nut holding member 20 such that the engaging portion 22 of the nut 10 is engaged and the elastic piece 24 is brought into contact with the receiving portion 14 of the nut 10. Then, as shown in FIG. 5A, one flange portion 17 of the nut 10 is inclined so as to face downward, and this one side surface portion is inserted from the opening portion of the T groove 32.

The one flange portion 17 thus inserted has a T groove 32.
When inserted inside, as shown in FIG. 5B, the other flange portion 17 is also positioned at the opening of the T groove 32, and the nut 10 and the nut holding member 20 are pushed into the T groove 32 as they are. Then, as shown in FIG. 5C, the cutout portion 16 of the nut 10 comes into contact with the step portion 32 a of the T groove 32. As a result, the nut 10 completely enters the T groove, and at the same time, the urging force of the elastic piece 24 urges the nut 10 in the direction in which it projects from the opening of the T groove via the receiving portion 14. . Then, the nut 10 is, as shown in FIG.
It is pressed against the upper edge portion 32b of the opening of the T groove 32 and locked. At this time, the support piece 26 has the bottom portion 32 of the T groove 32.
The nut 10 is supported so as to abut against c and press the nut 10 upward against the elastic force of the elastic piece 24.

According to the nut and the nut support member of this embodiment, the nut holding member 20 holding the nut 10 is not exposed to the outside of the T groove 32, so that the external member can be securely fixed to the structural member 30. it can.

The nut of the present invention is not limited to the shape of the above-mentioned embodiment, and the mounting portion may be a convex portion other than the concave portion, and may be a surface with which the nut holding member abuts. Further, the nut holding member may be any member as long as it has an elastic piece capable of urging the nut toward the opening side of the T groove, and the shape of this elastic piece is not limited.

[0017]

The nut and nut holding member of the present invention are
There is no protruding part from the surface of the structural material, which is not only favorable in appearance, but also does not cause rattling on external attachments.
Further, the mounting strength and the mounting accuracy of the structural material and other parts are increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a nut and a nut holding member according to an embodiment of the present invention are combined.

FIG. 2 is a partially cutaway perspective view showing a state in which a nut and a nut holding member of this embodiment are combined and attached to a structural member.

FIG. 3 is a plan view (a) and a front view (b) of the nut of this embodiment.

FIG. 4 is a plan view (a) at the time of punching and forming a nut holding member of this embodiment, a front view (b) after bending, and a side view (c).

FIG. 5 is a view showing a mounting process of the nut and the nut holding member of this embodiment.

FIG. 6 is a vertical sectional view showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Nut 11 Female screw part 12 Mounting part 14 Receiving part 16 Notch part 20 Nut holding member 22 Engaging part 24 Elastic piece 26 Support piece

Claims (4)

[Claims] 1. A nut, which is inserted into a T-shaped groove formed on a side surface of a long structural member and is held at a predetermined position in the T-shaped groove by a nut holding member, having a female screw portion of the nut as a center. A mounting portion of the nut holding member is formed on a pair of opposing side surfaces, and a receiving portion that is elastically biased outward in the axial direction of the female screw portion by the nut holding member is formed on one side of the mounting portion. It is a nut. 2. A notch is formed along a longitudinal direction of the T-groove on a side of the pair of side surfaces orthogonal to a side surface of the nut on which the mounting portion is formed and on which the receiving portion is formed. The nut according to claim 1, wherein 3. A nut holding member for holding a nut, which is inserted into a T-shaped groove formed on a side surface of a long structural member, at a predetermined position, and engaging with a mounting portion formed on a pair of side surfaces of the nut. Engaging portion, an elastic piece provided on both sides of the engaging portion as a center and abutting against the receiving portion of the nut to urge the nut toward the opening side of the T groove, and extending from the elastic piece. And a support piece elastically abutting the bottom of the T groove. 4. The nut holding member according to claim 3, wherein the elastic pieces are formed symmetrically with each other in a substantially V shape.