JPH0561513U - Screw rod - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a threaded rod that can be easily fixed to a mounting member such as an interior material. [Structure] An engaging claw 8 is provided on the outer peripheral surface of the screw rod main body 2 so as to be retractable, and the engaging claw 8 is a biasing means 9 such as a spring piece.
It is urged by 21 in a direction projecting from the outer peripheral surface of the screw rod body 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a threaded rod.

[0002]

[Prior Art]

 A threaded rod is generally known as a rod-shaped body having male threads engraved on it. Although this threaded rod is used for various purposes, generally, the threaded rod is inserted into the insertion hole of the mounting member, and nuts are respectively screwed from both ends of the threaded rod to attach the threaded rod. It is fixed to the mounting member and used as an anchor bolt, or in the above-mentioned state, the mounted member is interposed between the mounting member and the nut, and the mounted member is sandwiched between the mounting member and the nut, etc. Is being done.

[0003]

[Problems to be solved by the device]

 However, for example, in the case where the above-mentioned mounting member is a large wall material and the insertion hole is located in the center of the wall material, when the nut is screwed onto the threaded rod, the operator's hand is Since one side of the wall does not reach the other side, the worker himself moves to one side and the other side of the wall after inserting the screw rod into the insertion hole of the mounting member. Then, at each place, the nut must be screwed onto the threaded rod, and the operation of screwing the nut onto the threaded rod was very troublesome. Further, when the mounting member is, for example, an interior material that covers the concrete side surface at regular intervals, an insertion hole can be formed in the interior material, and a screw rod can be inserted through the insertion hole. Since the back of the interior material cannot be accessed by the operator, the nut cannot be screwed onto the screw rod on the back side of the interior material, and the screw rod is fixed to the mounting member such as the interior material. It is difficult to do. The present invention has been made in view of the above circumstances, and an object thereof is to provide a threaded rod that can be easily fixed to a mounting member.

[0004]

In order to achieve such an object, in the present invention, an engaging claw is provided on the outer peripheral surface of a screw rod body so as to be retractable, and the engaging claw is provided by a biasing means. The structure is such that it is biased in a direction projecting from the outer peripheral surface of the screw rod body. With the above-mentioned configuration, when the screw rod is inserted into the insertion hole of the mounting member from one side of the mounting member, the engaging claw is placed in the screw rod main body against the urging force of the urging means. The engaging claw does not prevent the threaded rod from being inserted into the insertion hole. On the other hand, when the engaging claw passes through the insertion hole, the engaging claw is projected from the screw rod main body by the biasing means, and the engaging claw moves toward one side which is the insertion side. The movement of the bar will be restricted. Therefore, if the nut is screwed onto the threaded rod on one side, the nut and the engaging claw can fix the threaded rod to the mounting member, and the other side of the threaded rod can be fixed. It is no longer necessary to screw the nut in.

[0005]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a threaded rod according to the present embodiment. A threaded rod body 2 of the threaded rod 1 extends in one direction, and an outer peripheral surface of the threaded rod body 1 extends over its entire length. A male 3 is formed. A through hole 4 is formed in the threaded rod body 1 in this embodiment. The through hole 4 is formed so that its axis coincides with the axis of the screw rod main body 2. The through hole 4 has one end face (the left end face in FIG. 2) of the screw rod main body 2. And the other end surface (the right end surface in FIG. 2) is opened outward from both end surfaces. As shown in FIGS. 1 and 2, the threaded rod body 1 is also provided with a slit 5 and a fitting holding hole 6. The slit 5 is formed on the outer peripheral side of the threaded rod body 1 so as to extend in the axial direction of the threaded rod body 2 so that the through hole 4 communicates with the outside through the slit 5. It has become. The slit 5 is located on the outer peripheral surface of the other end portion (the right end portion in FIG. 2) of the threaded rod body 2, and a slight male screw 3 is provided between the other end surface of the threaded rod body 2 and the slit 4. It is supposed to exist. As shown in FIG. 2, the fitting holding hole 6 is formed on the inner side of the slit 5 in the axial direction, and its position is the same as that of the slit 5 (on the upper side in FIG. 2). ).

As shown in FIGS. 1 and 2, the screw rod body 2 is provided with an engaging member 7. The engaging member 7 is composed of an engaging claw portion 8 as an engaging claw and a bending portion 9 as a biasing means, which are integrally formed by using synthetic resin in this embodiment. Is made. The engaging claw portion 8 is arranged so as to be able to be displaced between the through hole 4 and the outside via the slit 5, and the engaging claw portion 8 is provided with a locking surface 10. A head surface 11 located on the other end surface side of the threaded rod body 2 with respect to the locking surface 10 and a guide surface 12 connected to the locking surface 10 and the head surface 11. Of these, the locking surface 10 and the head surface 11 are arranged so as to be perpendicular to the axial center direction of the threaded rod body 2, and the guide surface 12 goes toward the other end surface side of the threaded rod body 2. The threaded rod main body 2 is inclined so as to face inward in the radial direction. The bending portion 9 is formed of a strip-shaped plate material, and the bending portion 9 is curved in a substantially U shape as shown in FIG. The bending portion 9 is arranged in the through hole 4 such that the projecting surface based on the bending of the bending portion 9 contacts the inner peripheral surface of the screw rod main body 2, and one end portion (the left end in FIG. 2) of the bending portion 9 is formed. Part) is fitted and held in the fitting holding hole 6, and the other end part (the right end part in FIG. 2) is connected to the engaging claw part 8 so that the engaging claw 8 is It is projected to the outside through the slit 5.

Next, how to use the screw rod 1 will be described. As shown in FIG. 3, when the mounting member to which the screw rod 1 is attached is the interior material 14 that covers the concrete side wall 13 at regular intervals, the interior material 14 is provided with the insertion hole 15 and the insertion hole 15 is formed. The screw rod 1 is inserted into 15 from the other end (the left end in FIG. 3) side. At this time, the guide surface 12 of the engaging claw portion 8 receives an external force radially inward from the inner peripheral surface of the insertion hole 15 as the screw rod 1 is inserted. Will be pulled into the threaded rod body 2, that is, into the through hole 4, against the biasing force of the bending portion 9. Then, after this, when the engaging claw portion 8 passes through the insertion hole by further insertion of the screw rod 1, the engaging claw portion 8 moves to the outside of the screw rod body 2 based on the biasing force of the bending portion 9. After that, the engaging claw portion 8 restricts the movement of the screw rod 1 toward the insertion side.

Therefore, after that, when the attached member 16 is also fixed to the interior material 14, the insertion hole 17 of the attached member 16 is passed through the threaded rod 1 from one end side thereof, and the nut The nut 18 is screwed onto the threaded rod 1 from one end side thereof, and the nut 18 is screwed until the head surface 11 of the engaging claw portion 8 abuts on the inner end surface on the outer side in the longitudinal direction of the slit 5. Then, the nut 18 and the engaging claw portion 8 firmly sandwich the inner material 14 and the mounted member 16, and the mounted member 16 and the screw rod 1 are fixed to the inner material 14. Will be. Therefore, in the above case, it is not necessary to screw the nut 18 onto the threaded rod 1 from the other end side, and even if the mounting member is the interior material 14 that covers the concrete side wall 13, the interior material 14 is screwed. It will be possible to fix the rod 1.

In the above-described embodiment, the case where the mounting member is the interior material 14 that covers the concrete side wall 13 and the operator's hand cannot be put on the back side thereof has been described, but the operator's hand is placed on the back side of the mounting member. When it reaches (enters) and it is necessary to fix the threaded rod 1 to the mounting member very firmly, the threaded rod 1 is fixed to the mounting member by the engaging claw portion 8 and the nut 18 according to the procedure described above. It may be temporarily fixed, and then, as shown in FIG. 2, a nut 19 is newly screwed to the threaded rod 1 from the other end side. In this case, since the guide surface 12 of the engaging claw portion 8 is inclined so as to face the radially inner side of the threaded rod 1 as it goes to the other end surface of the threaded rod body 2, When the nut 19 is newly screwed from the end portion, the inner peripheral surface of the nut 19 comes into contact with the guide surface of the engaging claw portion 8 as the nut 19 is screwed, and the engaging claw portion 8 is engaged. Will be smoothly drawn into the through hole 4.

FIG. 4 shows another embodiment. In this embodiment, the same components as those in the previous embodiment are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the threaded rod main body 2 is a solid member, and a slit 5 is formed at the other end of the threaded rod main body 2, and the slit 5 has a longitudinal direction in which the screw rod main body is formed. The screw rod main body 2 is fitted in the axial direction of the second rod 2 and penetrates the screw rod main body 2 in the radial direction.

An adjusting rod 20 is provided in the slit 5. The adjusting rod 20 is hung on the slit inner surfaces facing each other in the width direction of the slit 5, and the adjusting rod 20 is located at the center position in the longitudinal direction of the slit 5.

An engagement member 7 is arranged in the slit 5. The engagement member 7 includes an engagement claw portion 8 and a pair of leg portions 21. The engaging claw portion 8 has the locking surface 10 and the guide surface 12 as in the above-described embodiment, while the pair of leg portions 21 are formed in a forked shape continuously from the engaging claw portion 8. An adjusting hole 22 is provided between the pair of leg portions 21 and the engaging claw portion 8 so that the pair of leg portions 21 can be expanded and contracted (flexible). Then, as shown in FIG. 4, the pair of legs 21 are arranged in the slit 5 so as to sandwich the adjusting rod 20. Therefore, if an external force is applied to the engaging claw portion 8 toward the inside of the slit 5, the engaging claw portion 8 can be retracted into the slit 5, while the engaging claw portion 8 is retracted. The larger the force, the greater the repulsive force against it. Therefore, if no external force acts on the engaging claws 8, the engaging claws 8 should project from the outer peripheral surface of the screw rod body 2 as shown in FIG. It has become. Therefore, also in this embodiment, the engagement claw portion 8 produces the same action as the engagement claw portion 8 of the above-described embodiment. Reference numeral 23 is a stopper portion for the adjusting rod 20.

Although the embodiments have been described above, the present invention also includes the following. The threaded rod body 2 has a split structure, for example, a split structure. The engaging member 7 should be formed by working with a metal piece such as an iron plate or by combining a synthetic resin and a metal piece. The through hole 4 should be opened only on the other end surface of the screw rod body 2.

[0014]

[Effect of the device]

 As described above, the present invention can provide a threaded rod that can be easily fixed to a mounting member.

[Brief description of drawings]

FIG. 1 is a plan view showing a threaded rod according to an embodiment.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a vertical cross-sectional view illustrating a usage state of a screw rod.

FIG. 4 is an enlarged partial sectional view for explaining another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screw rod 2 Screw rod main body 8 Engaging claw portion 9 Bending portion 21 A pair of leg portions

Claims (1)

[Scope of utility model registration request] 1. An engaging claw is provided on an outer peripheral surface of a threaded rod body so as to be retractable and retractable, and the engaging claw is biased by a biasing means in a direction projecting from the outer peripheral surface of the threaded rod body. , A threaded rod characterized by the following.