JP2005106146A - Combination nut with high workability - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination nut with high workability capable of easily performing tightening and releasing operation even for a long bolt while it has a construction simpler than a conventional nut. <P>SOLUTION: The combination nut is equipped with a male side nut member 1 and female side nut member 2 capable of threadably engaging with each other. It has a threaded trench 6 which enables the bolt 5 to threadably engage on one side in axial direction of inner periphery of the male side nut member 1 and with an insertion hole 7 through which the bolt 5 is capable of inserting on other side in axial direction. It is also formed with the threaded trench 6 with which the bolt 5 is capable of threadably engaging on one side in axial direction of inner periphery of the female side nut member 2 and with an insertion hole 7 through which the bolt 5 is capable of inserting on other side in axial direction. It includes one condition that can insert through the bolt 5 by the male side nut member 1 and the female side nut member 2 threadably engaging with each other and by respective inner periphery of a threaded trench 6 and insertion hole 7 being approximately coincided with each other in axial direction and other condition that the threaded trench 6 and the insertion hole 7 are misaligned with each other in axial direction by turning from one condition by constant range, thereby being capable of threadably engaging to the bolt 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a highly workable combination nut that can be easily tightened and removed.

  Conventionally, a nut that can be easily tightened and removed even with a long bolt is known (for example, see Patent Document 1).

  As shown in FIGS. 13 and 14, the nut 50 is accommodated in a main body 52 having a tapered hole 51 that expands upward and penetrates in the vertical direction, and is slidably accommodated in the tapered hole 51 in the vertical direction. A plurality of nut segments 53, a spring 54 that urges the nut segments 53 toward the small diameter side of the tapered hole 51, and a rotatably mounted on the outer periphery of the main body 52, and a projection 55 of each nut segment 53 on the inner surface And an operating ring 57 formed with a cam portion 56 capable of simultaneously raising and releasing these against the elastic force of the spring 54, and the cam portion 56 of the operating ring. The nut segment 53 is controlled by the spring 54.

  According to this nut 50, when tightening the member to be tightened with the bolt 58 and the nut 50, the nut 50 can be inserted simply by pressing the length from the tip of the bolt 58 to the vicinity of the fastening position. There is an advantage that the tightening operation of the nut 50 is easier than the insertion by movement.

However, there is a problem that the structure is quite complicated as described above.
Japanese Patent Publication No. 55-50203 (pages 1 to 4, FIGS. 3 and 5)

  Accordingly, the present invention is intended to provide a highly workable combination nut that has a simpler structure than the conventional one and can be easily tightened and removed even with a long bolt.

In order to solve the above problems, the present invention takes the following technical means.
(1) The high workability combination nut of the present invention comprises a male nut member and a female nut member that can be screwed together, and a bolt is screwed on one axial side of the inner periphery of the male nut member. An insertion hole through which a bolt can be inserted is formed on the other side in the axial direction of the thread that can be mated, and a thread that can be screwed into the axial side of the inner circumference of the female nut member is axial. An insertion hole through which the bolt can be inserted is formed on the other side, and the male nut member and the female nut member are screwed together so that the inner circumferential thread groove and the insertion hole substantially coincide with each other in the axial direction. A state in which the bolt can be inserted, and a state in which the bolt is rotated by a predetermined range from the above state and the thread groove and the insertion hole are displaced in the axial direction and can be screwed into the bolt.

This high workability combination nut is a state in which the male nut member and the female nut member are screwed together, and the inner circumferential screw groove and the insertion hole are substantially aligned in the axial direction, and the bolt can be inserted, A state in which the bolt can be inserted without requiring a spring or a cam mechanism since the screw groove and the insertion hole are displaced in the axial direction and can be screwed into the bolt. It is possible to operate in a state where it can be screwed onto.
(2) It is good also as having the positioning member which controls rotation between the state which can insert the said volt | bolt, and the state which can be screwed to a volt | bolt by a predetermined range rotation from the said state.

If comprised in this way, since rotation is controlled by the state which can insert a volt | bolt, and the state which can be screwed together with a volt | bolt, it is excellent in the operativity at the time of work, and can prevent useless separation | separation during work. .
(3) The predetermined range may be set so as to be able to be screwed into the bolt when rotated about 180 ° from a state where the bolt can be inserted.

If comprised in this way, the thread groove of the inner circumference of a male side nut member and a female side nut member will screw together with a bolt in the position opposite about 180 degrees (about half circumference), and a smaller angle (for example, 80-) Compared with the case of setting to 100 ° or the like, the vertical meshing strength with respect to the bolt is high.
(4) The male side nut member and the female side nut member may be set so as to be able to be screwed into the bolt when they are screwed together.

  If comprised in this way, it can be rotated with respect to a bolt in the state which screwed the male side nut member and the female side nut member to the back, and mutually fixed, and the stability at the time of the screwing to a bolt and rotation work Excellent.

  The present invention is configured as described above and has the following effects.

  Since it can be operated in a state where a bolt can be inserted and a state where it can be screwed into the bolt without requiring a spring or a cam mechanism, it is possible to tighten and remove even a long bolt with a simpler structure than before. It is possible to provide a high workability combination nut capable of easily performing work.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
As shown in FIGS. 1 to 6, the high workability combination nut of this embodiment includes a male nut member 1 and a female nut member 2 that can be screwed together. The male nut member 1 has a hexagonal outer periphery and has a male screw portion 3, and the female nut member 2 has an annular outer periphery and has a female screw portion 4.

  A thread groove 6 to which a bolt 5 (see FIG. 5) can be screwed is formed on one axial side of the inner periphery of the male nut member 1. On the other hand, an insertion hole 7 through which the bolt 5 can be inserted is formed on the other side in the axial direction. Similarly, a thread groove 6 to which the bolt 5 can be screwed is formed on one axial side of the inner periphery of the female nut member 2. On the other hand, an insertion hole 7 through which the bolt 5 can be inserted is formed on the other side in the axial direction.

  As shown in FIGS. 1 and 2, the male nut member 1 and the female nut member 2 are screwed together, and the inner circumferential thread groove 6 and the insertion hole 7 are substantially aligned in the axial direction. The state in which the bolt 5 can be inserted, and the screw groove 6 and the insertion hole 7 are displaced in the axial direction as shown in FIGS. And can be screwed together.

  Here, when the predetermined range is set so that it can be screwed into the bolt 5 when it is turned about 180 ° from the state in which the bolt 5 can be inserted, the inner circumference of the male side nut member 1 and the female side nut member 2. The screw groove 6 is screwed to the bolt 5 at a position opposite to about 180 ° (about half circumference), and the vertical direction relative to the bolt 5 is compared with the case where the angle is set to a smaller angle (for example, 80 to 100 °). There is an advantage that the meshing strength in the direction is high.

  The male side nut member 1 and the female side nut member 2 are set so that they can be screwed to the bolt 5 when they are completely screwed together. Therefore, the male nut member 1 and the female nut member 2 can be rotated with respect to the bolt 5 in a state where the male nut member 1 and the female nut member 2 are completely screwed together and firmly fixed to each other. There is an advantage that time stability is excellent. In this case, the position where the bolt 5 can be inserted is a position where the male nut member 1 and the female nut member 2 are completely screwed together to a position loosened by about 180 ° (about a half circumference).

  Next, the use state of the high workability combination nut of this embodiment will be described.

In this high workability combination nut, the male nut member 1 and the female nut member 2 are screwed together so that the inner circumferential thread groove 6 and the insertion hole 7 substantially coincide with each other in the axial direction, and the bolt 5 is attached. Since it has a state in which it can be inserted and a state in which the thread 6 and the insertion hole 7 are rotated in a certain range from the above state and are displaced in the axial direction and can be screwed into the bolt 5, no spring or cam mechanism is required. The bolt 5 can be inserted into the bolt 5 and the bolt 5 can be screwed into the bolt 5, and the tightening and removing operation can be easily performed even with the long bolt 5 having a simpler structure than the conventional one. There is an advantage.
(Embodiment 2)
The high workability combination nut of the second embodiment is different from the first embodiment in that a positioning member is mainly installed.

  As shown in FIGS. 7 to 12, the high workability combination nut of this embodiment includes a male nut member 1 and a female nut member 2 that can be screwed together. The male nut member 1 has a hexagonal outer periphery and has a male screw portion 3, and the female nut member 2 has an annular outer periphery and is knurled to prevent slipping and has a female screw portion 4. .

  On one side in the axial direction of the inner periphery of the male nut member 1, a thread groove 6 is formed on which a bolt 5 (see FIG. 5 of the first embodiment) can be screwed. On the other hand, an insertion hole 7 through which the bolt 5 can be inserted is formed on the other side in the axial direction. Similarly, a thread groove 6 to which the bolt 5 can be screwed is formed on one axial side of the inner periphery of the female nut member 2. On the other hand, an insertion hole 7 through which the bolt 5 can be inserted is formed on the other side in the axial direction.

  As shown in FIGS. 7 to 9, the male nut member 1 and the female nut member 2 are screwed together, and the inner circumferential thread groove 6 and the insertion hole 7 are substantially aligned in the axial direction. A state in which the bolt 5 can be inserted, and a predetermined range (set to about 180 °) is rotated from the above state as shown in FIGS. 10 to 12, and the thread 6 and the insertion hole 7 are displaced in the axial direction to the bolt 5. And can be screwed together.

  Here, when the predetermined range is set so that it can be screwed into the bolt 5 when it is turned about 180 ° from the state in which the bolt 5 can be inserted, the inner circumference of the male side nut member 1 and the female side nut member 2. The screw groove 6 is screwed to the bolt 5 at a position opposite to about 180 ° (about half circumference), and the vertical direction relative to the bolt 5 is compared with the case where the angle is set to a smaller angle (for example, 80 to 100 °). There is an advantage that the meshing strength in the direction is high.

  The male side nut member 1 and the female side nut member 2 are set so that they can be screwed to the bolt 5 when they are completely screwed together. Therefore, the male nut member 1 and the female nut member 2 can be rotated with respect to the bolt 5 in a state where the male nut member 1 and the female nut member 2 are completely screwed together and firmly fixed to each other. There is an advantage that time stability is excellent. In this case, the position where the bolt 5 can be inserted is a position where the male nut member 1 and the female nut member 2 are completely screwed together to a position loosened by about 180 ° (about a half circumference).

  Then, the male nut member 1 is provided with a positioning member 8 that restricts the rotation range between a state in which the bolt 5 can be inserted and a state in which the bolt 5 can be screwed into the bolt 5 by a certain range (about 180 °). And attached to the outer periphery of the female nut member 2.

  Next, the use state of the high workability combination nut of this embodiment will be described.

  In this high workability combination nut, the male nut member 1 and the female nut member 2 are screwed together so that the inner circumferential thread groove 6 and the insertion hole 7 substantially coincide with each other in the axial direction, and the bolt 5 is attached. Since it has a state in which it can be inserted and a state in which the thread 6 and the insertion hole 7 are rotated in a certain range from the above state and are displaced in the axial direction and can be screwed into the bolt 5, no spring or cam mechanism is required. The bolt 5 can be inserted into the bolt 5 and the bolt 5 can be screwed into the bolt 5, and the tightening and removing operation can be easily performed even with the long bolt 5 having a simpler structure than the conventional one. There is an advantage.

  Further, a positioning member 8 for restricting rotation is attached and fixed between a state in which the bolt 5 can be inserted and a state in which the bolt 5 can be rotated by a certain range and screwed into the bolt 5, and the bolt 5 can be inserted. Since the rotation is restricted between the state and the state in which the bolt 5 can be screwed, there is an advantage that operability during work is excellent and unnecessary separation during work can be prevented.

  Even with long bolts, the structure is simpler than before, and tightening and removal operations can be performed easily. For example, the time required for screwing a mold with a large number of replacements can be greatly shortened. It can be performed well, and can be efficiently applied to motor cover mounting work, jig mounting work, temporary fastening work, and the like.

  It can also be suitably applied to construction work sites and other uses.

The whole perspective view explaining the state which can insert a volt | bolt in Embodiment 1 of the highly workable combination nut of this invention. The center longitudinal cross-sectional view explaining the highly workable combination nut of FIG. The whole perspective view explaining the state which can be screwed together with a volt | bolt with the high workability | operativity combination nut of FIG. The center longitudinal cross-sectional view explaining the highly workable combination nut of FIG. The perspective view explaining the use condition screwed together by the volt | bolt to the high workability | operativity combination nut of FIG. The disassembled perspective view explaining the high workability combination nut of FIG. 1 which decomposed | disassembled. The whole perspective view explaining the state which can insert a bolt in Embodiment 2 of the high workability combination nut of this invention. The center longitudinal cross-sectional view explaining the highly workable combination nut of FIG. The center cross-sectional view explaining the highly workable combination nut of FIG. The whole perspective view explaining the state which can be screwed together with a volt | bolt with the high workability | operativity combination nut of FIG. FIG. 11 is a central longitudinal sectional view illustrating the high workability combination nut of FIG. FIG. 11 is a central cross-sectional view illustrating the highly workable combination nut of FIG. Sectional drawing explaining the conventional nut. The exploded perspective view explaining the conventional nut.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Male side nut member 2 Female side nut member 5 Bolt 6 Spiral groove 7 Insertion hole 8 Positioning member

Claims (4)

A male nut member (1) and a female nut member (2) that can be screwed together are provided, and a bolt (5) is screwed onto one axial side of the inner periphery of the male nut member (1). An insertion hole (7) through which the bolt (5) can be inserted is formed on the other axial side of the possible thread groove (6), and the bolt is also formed on one axial side of the inner periphery of the female nut member (2). An insertion hole (7) into which a bolt (5) can be inserted is formed on the other axial side of the thread groove (6) to which (5) can be screwed, and a male nut member (1) and a female nut member. (2) are screwed together so that the inner circumferential thread groove (6) and the insertion hole (7) substantially coincide with each other in the axial direction so that the bolt (5) can be inserted, and a certain range from the above state. A high workability combination nut characterized by having a state in which the thread groove (6) and the insertion hole (7) are rotated and can be screwed together with the bolt (5). The high work according to claim 1, further comprising a positioning member (8) for restricting rotation between a state in which the bolt (5) can be inserted and a state in which the bolt (5) can be rotated by a predetermined range and screwed into the bolt (5). Sex combination nut. The high workability combination nut according to claim 1 or 2, wherein the predetermined range is set so as to be able to be screwed into the bolt (5) when rotated by about 180 ° from a state in which the bolt (5) can be inserted. The male side nut member (1) and the female side nut member (2) are set so that they can be screwed into the bolt (5) when they are screwed together. High workability combination nut.

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