JPS5942498Y2 - Driving nut - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a driving nut.

For example, when assembling furniture, components are attached to a wooden board using bolts, but the bolts in this case are generally nuts embedded in the board. It is customary to be screwed onto the

The present invention relates to an improvement of the driving nut to be embedded in the substrate body in such a case, and is an object of the present invention to provide a driving nut that can be easily and reliably driven into the substrate body.

An embodiment of the present invention will be described with reference to the drawings.

1 is a driving auxiliary cylinder, and this driving auxiliary cylinder 1 is provided with a cylindrical body 2 made of synthetic resin, etc., and at least an inner diameter 2a of this cylindrical body 2 extends from one side in the axial direction to the other side. A cut groove 3 is provided in the direction of → from the other side end of the cylindrical body 2, and a longitudinal section is formed in the circumferential wall 4 and the outer circumferential wall 5 of the cylindrical body 2, respectively. It is formed by arranging sawtooth-shaped engagement grooves 6 and biting protrusions I in an annular manner.

Reference numeral 11 denotes a nut body, and this nut body 11 is provided with a cylindrical body 12 made of synthetic resin or the like, and a female thread 14 is provided around the inner circumferential wall 13 of this cylindrical body 12, and an outer circumferential wall 15 of the cylindrical body 12 The nut body 11 is formed by annularly disposing an engagement protrusion 16 having a serrated longitudinal section around the nut body 11, and a protrusion 11 is provided at one end of the nut body 11.

Further, as shown in FIG. 2, the other end of the nut body 11 can be separated from the one end of the driving auxiliary cylinder 1 in advance via a connecting strip 18 made of synthetic resin or the like. is connected to.

In such a configuration, when in use, the driving auxiliary cylinder 1 and the nut main body 11 are separated, and for example, as shown in FIG. In the case where a hole (not shown) is pre-drilled in the surface of the substrate body a, the driving auxiliary cylinder 1 is first inserted into the hole from the side where the cut groove 3 is provided, and then The nut body 11 is driven into the driving auxiliary cylinder 1 using a hammer or the like, thereby embedding the nut bodies 1, 1 in the base body a through the driving auxiliary cylinder 1.

When driving the main nut 1 into the driving auxiliary cylinder 1, the nut main body 11 moves into the auxiliary cylinder 1 and pushes the driving auxiliary cylinder 1 outward through the slits 3, thereby causing The biting protrusion 1 on the outer circumferential wall 5 of the driving auxiliary cylinder 1 is wedge-shaped toward the circumferential side inside the substrate body a, and acts like a stopper. The engagement protrusion 1 on the outer circumference wall 15 of the nut body 11 corresponds to the engagement groove 6 on the inner circumference wall 4.
6 fits and engages, acting as a stopper.

In this state, the nut body 11 embedded in the driving auxiliary cylinder 1 is attached to the base body a by screwing the tip of the bolt 21 that has passed through the member and tightening it. The parts are fastened so that they can be attached and detached.

Furthermore, by integrally molding the driving auxiliary cylinder 1 and the nut main body 11 in a state in which they are connected by the connecting strip In, manufacturing is facilitated, and handling is also extremely convenient. It is.

According to the present invention, when embedding the nut body in the embedding target member, first embedding the driving auxiliary cylinder in the embedding target member, and then driving the nut body into the driving auxiliary cylinder, It is possible to easily and reliably embed the driving auxiliary cylinder into the embedding member, and also to easily and reliably embed the nut body into the embedding auxiliary cylinder. Good embedding of the body will occur.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a front view of the driving nut, Fig. 2 is a side view showing a part of the nut in cross section, Fig. 3 is a rear view thereof, and Fig. 4 is a front view of the driving nut. FIG. 2 is a vertical side view showing the state of use. 1... Driving auxiliary cylindrical body, 2... Cylindrical body, 3... Cut groove, 4... Inner peripheral wall, 5... Outer peripheral wall, 6... Engagement groove, I
... Biting protrusion, 11 ... Nut body, 12 ... Cylindrical body, 13 ... Inner peripheral wall, 14 ... Female thread, 15...Outer peripheral wall,
16... Engaging protrusion, a... Substrate body as an embedded member.

Claims (1)

[Scope of utility model registration request] The driving auxiliary cylinder is provided with a cylindrical body, and the driving auxiliary cylinder is provided with a cylindrical body. At least the inner diameter is narrowed from one side to the other, and a slot is provided from the other end of the cylindrical body toward one side, and longitudinally cut grooves are provided on the inner and outer circumferential walls of the cylindrical body, respectively. The nut body is formed by annularly disposing engaging grooves and biting protrusions in the shape of serrations, and the nut body is provided with a cylindrical body, and the inner peripheral wall of the driving auxiliary cylinder is attached to the outer peripheral wall of the cylindrical body. 1. A driving nut characterized in that it is formed by providing an annular engagement protrusion having a serrated longitudinal section on the cylindrical body and a female thread provided on the inner circumferential wall of the cylindrical body.