JPH10225873A - Nut rotating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nut rotating device of favorable workability in which a nut can be easily and speedily moved for a long distance in moving the nut to a specified position of a long male screw. SOLUTION: A nut rotating device comprises a support frame 1, a passive rotation member 3 rotatably installed on the support frame 1, provided with a through hole 3d to penetrate a male screw 5 at an axial center position of a rotation axis, and provided with holding parts 3a, 3b to hold the nut 4 to be threaded with the male screw 5 at one end of the through hole 3d, a drive rotation member 7 rotatably installed on the support frame 1 to be apart from the passive rotation member 3, and rotation torque transmission means 3c, 7c, 12 to transmit rotation torque of the drive rotation member 7 to the passive rotation member 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nut rotating device for rotating a nut screwed to a male screw and moving the nut to a predetermined position.

[0002]

2. Description of the Related Art Conventionally, when a nut is screwed into one end of a long male screw and the nut is rotated from that position to a predetermined position of the male screw to move the nut, the nut is conventionally pinched and rotated with a fingertip, or the nut is rotated. With the nut, the nut was held between the palms of both hands, and the nut was rotated and moved like a flying bamboo dragonfly. Alternatively, using a pipe-shaped tool with a nut engagement socket formed at one end, engage the nut with this socket, penetrate a male screw through the pipe, and connect a manual handle or power tool to the other end of the pipe The nut was rotated through the pipe.

[0003]

In the conventional method of rotating a nut with a fingertip or a palm as described above, the fingertips and hands of the work are tired, and continuous work is difficult and inefficient. In the method using a pipe-shaped tool, the nut is engaged with one end of the pipe, and the nut is rotated by operating a male screw to penetrate the pipe in a state where a manual handle or a power tool is connected to multiple ends. Therefore, the nut cannot be moved beyond the length of the pipe from the end of the external thread. Also, if the pipe is made too long, the workability will worsen,
The distance over which the nut can be moved is naturally limited, and when the length of the external thread is very long, it is difficult to quickly move the nut to a predetermined position of the external thread over a long distance.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a nut rotator having good workability, which can move a nut quickly and easily over a long distance. And

[0005]

According to a first aspect of the present invention, there is provided a nut rotating device, wherein a supporting frame and a through hole which is rotatably mounted on the supporting frame and through which a male screw is inserted penetrates to the axis of the rotating shaft. Provided, a passive rotating member further provided with a gripping portion that grips a nut screwed into a male screw is provided at one end of the through hole, and a drive rotating member rotatably attached to the support base so as to be separated from the passive rotating member, Rotating torque transmitting means for transmitting the rotating torque of the driving rotating member to the passive rotating member.

In the nut rotating device according to the second aspect, the rotating torque transmitting means includes a belt groove provided on an outer peripheral portion of the passive rotating member and an outer peripheral portion of the driving rotating member, and a belt wound around both belt grooves. It is composed of

[0007] In the nut rotating device of the third aspect,
The rotating torque transmitting means is a passive bevel gear integrally provided on the passive rotating member coaxially with the rotation axis of the passive rotating member, and a passive bevel gear integrally provided on the driving rotating member coaxially with the rotating shaft of the driving rotating member. It is composed of a bevel gear and a drive-side bevel gear that meshes.

[0008] In the nut rotating device of the fourth aspect,
The rotation speed of the passive rotation member is configured to be higher than the rotation speed of the drive rotation member.

[0009] In the nut rotating device of claim 5,
The drive rotation member is provided with a handle for manual rotation.

[0010] In the nut rotating device of claim 6,
A connection portion that can be connected to a rotation shaft of an external drive source is provided at an axial position of the rotation shaft of the drive rotation member.

[0011] In the nut rotating device of claim 7,
The passive rotation member and the drive rotation member are mounted on the support base such that the axes of the rotation shafts intersect each other.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a sectional view showing a nut rotating device of the present invention. In FIG. 1, reference numeral 1 denotes a support base made of a steel plate manufactured by bending. A pulley-shaped passive rotating member 3 is rotatably attached to one end of the support base 1 via a bearing 2. On the main surface of the passive rotating member 3, a nut housing portion 3a that can house the nut 4 from above in the figure is recessed at the center. A nut engaging plate 3b having a hole similar in shape to the outer peripheral portion of the nut 4 is attached to the opening of the nut receiving portion 3a by screwing so that the outer peripheral portion of the nut 4 is engaged with a predetermined gap. ing. The nut accommodating portion 3a and the nut engaging plate 3b constitute a holding portion for holding the nut 4 on the passive rotary member 3 such that the rotation axis of the nut 4 is the same as the rotation axis of the passive rotary member 3.

The nut 4 fits into the hole of the nut engaging plate 3b at a predetermined interval. Several types of nut engagement plates 3b are prepared depending on the size of the nut, and one type is selected and replaced as needed. Reference numeral 5 denotes a long male screw into which the nut 4 is screwed, which extends vertically in FIG. Passive rotating member 3
Is provided with a through hole 3d penetrating at the position of the axis of the rotating shaft. The male screw 5 passes through the through hole 3d. A belt groove 3 having a V-shaped cross section is formed on the outer peripheral portion of the passive rotary member 3.
c is formed.

Reference numeral 7 denotes a pulley-shaped driving rotary member rotatably attached to the other end of the support base 1 via a bearing 8. The diameter of the driving rotary member 7 is larger than the diameter of the passive rotary member 3. A belt groove 7c having a V-shaped cross section is provided on the outer peripheral portion of the driving rotary member 7. A handle 9 is rotatably provided on the outer peripheral portion of the main surface of the drive rotating member 7 so as to be rotatable with a rotation axis parallel to the rotation axis of the drive rotation member 7. Further, on the rotation shaft of the drive rotation member 7, a connection shaft 7e, which is a connection portion connected to, for example, the electric tool 10, which is an external drive source, protrudes. A grip 13 for fixing the inner race of the bearing 8 with the support base 1 therebetween and for holding the device is attached to the center of the other main surface of the drive rotating member 7.

The belt grooves 3c, 7c provided on the outer periphery of the passive rotating member 3 and the driving rotating member 7 have both grooves 3c.
The belt 12 is disposed so as to be wrapped around c and 7c. The belt grooves 3c, 7c and the belt 12 constitute a rotational torque transmitting means for transmitting a rotational force from the driving rotary member 7 to the passive rotary member 3. Numeral 14 denotes a plate-shaped retaining member for preventing the nut 4 from coming out of the nut accommodating portion 3a. The fixing knob 15 is inserted into an elongated hole drilled in the main surface and attached to the support base 1, and is fixed to the support base 1. 1 can be moved in the left-right direction in FIG.

In the nut rotating device thus configured, after the nut 4 is screwed into the male screw 5, the male screw 5 is passed through the through hole 3 d of the passive rotating member 3, and the nut for engaging the passive rotating member 3 The nut 4 is engaged with the plate 3b, and the retaining member 1 prevents the nut 4 from falling off.
4 is set. In this state, the grip 13 is gripped by one hand of the operator, and the handle 9 is rotated by the other hand. As a result, when the driving rotary member 7 is rotated, the rotation torque is transmitted to the belt groove 7c, the belt 12, and the belt groove 3c, and the nut 4 is rotated together with the passive rotary member 3. Then, the nut 4 is moved to a predetermined position in the longitudinal direction of the male screw 5.

When the electric tool 10 is used instead of the manual operation as described above, the nut engaging plate 3b of the passive rotary member 3 is engaged with the nut 4, and the retaining member 14 is set. After that, the connecting shaft 7e
The power tool 10 as a drive source is connected to the power tool 10. Then, the power tool 10 is operated with one hand of the operator, and the nut 4 is moved.

As described above, the nut rotating device of the present invention has the support gantry 1 and the passive rotary member 3 rotatably attached to one side of the support gantry 1.
Has a through hole 3d through which the male screw 5 passes, and the through hole 3d
A gripping portion for gripping the nut 4 screwed into the male screw 5 is formed at one end of the shaft, and is rotatably provided on the other side of the support gantry 1.
And a belt 12 for transmitting a rotational torque from the driving rotary member 7 to the passive rotary member 3. Therefore, nut 4
Can be easily moved to a predetermined position over a long distance, and workability is good.

The rotating torque transmitting means of the nut rotating device includes belt grooves 3c and 7c formed on the outer peripheral portion of the passive rotating member 3 and the outer peripheral portion of the driving rotating member 7, respectively, and the belt 12 wound around both belt grooves. It is. Therefore vibration,
Noise can be reduced.

Further, the diameter of the driving rotary member 7 is larger than the diameter of the passive rotary member 3. Therefore, the drive rotating member 7
, The rotation of the nut 4 can be increased, and the nut 4 can be rotated at a high speed.
Can be moved quickly.

Further, a connecting shaft 7 which is a connecting portion connectable to a rotating shaft of an external driving source is provided on a central axis of the driving rotating member 7.
e is protruding. Therefore, the nut 4 can be easily moved to a predetermined position by electric operation at a high speed and with one hand. The power tool 10 is not limited to a tool that is operated by being supplied with power from a power supply, and may be, for example, a device with a built-in battery. In the case of such a device, it can be used even in a place where there is no power supply, which is convenient.

In this embodiment, the rotation is transmitted from the driving rotary member 7 to the passive rotary member 3 by the belt 1 having a circular cross section.
2, a V-belt having a triangular cross section may be used. Further, the outer peripheral portions of the passive rotary member 3 and the drive rotary member 7 may be formed in a flat or drum shape, a belt hook portion for a flat belt may be formed, and the flat belt may be provided there.

Although the support base 1 is made of a steel plate, if it is made of aluminum, the weight can be reduced. Furthermore, although the power tool 10 is used as an external drive source of the drive rotating member 7, hydraulic power or compressed air may be used as a power source. In this case, electricity is not used, so that it is safe to use outdoors even in rainy weather. Can be operated.

Embodiment 2 FIG. FIG. 2 is a sectional view showing another example of the nut rotating device of the present invention. FIG. 3 is III of FIG.
It is a side view which makes a part along line-III a cross section. FIG. 4 is a perspective view of the holding socket 25. 2 and 3, reference numeral 21 denotes a cross support frame which is a support frame which is formed by bending a steel plate and which is bent substantially in an L-shape. A pulley-shaped passive rotating member 3 is rotatably mounted on one end of the cross support base 21 via a bearing 2. On the main surface of the passive rotating member 3, a nut housing portion 3a that can house the nut 4 from above in the figure is recessed at the center. In the opening of the nut housing 3a,
A nut engaging plate 3b having a hole similar in shape to the outer peripheral portion of the nut 4 is attached by screwing so that the outer peripheral portion of the nut 4 is engaged with a predetermined gap. The nut receiving portion 3a and the nut engaging plate 3b
Is formed on the passive rotating member 3 so that the rotating shaft of the nut 4 is the same as the rotating shaft of the passive rotating member 3.

The nut 4 fits into the hole of the nut engaging plate 3b at a predetermined interval. Several types of nut engagement plates 3b are prepared depending on the size of the nut, and are replaced as necessary. A belt groove 3c is formed on an outer peripheral portion of the passive rotating member 3. 5
Is a long male screw to which the nut 4 is screwed, and extends vertically in FIG. The passive rotating member 3 has a through hole 3d formed at the axial center of the rotating shaft. The male screw 5 passes through the through hole 3d.

Further, outside the passive rotary member 3, the gripping socket 25 shown in FIG.
Are arranged and fixed to the cross support base 21.

A pulley-shaped drive rotary member 7 is rotatably attached to the other end of the cross support base 21 via a bearing 2 so that the rotation center axis is orthogonal to the rotation center axis of the passive rotation member 3. Have been. The diameter of the driving rotary member 7 is larger than the diameter of the passive rotary member 3. Drive rotating member 7
Is provided with a belt groove 7c in the outer peripheral portion thereof. At the center of the driving rotary member 7, an engagement plate 7f, which is a connecting portion that engages with the shaft 26 of the electric tool 10, is attached. Engagement plate 7
An engagement hole is drilled in the main surface of f, and the shaft 26 of the power tool 10 is inserted into and engaged with the engagement hole. A handle 9 is rotatably protruded from an outer peripheral portion of a main surface of the driving rotary member 7.

Reference numeral 22 denotes two tapered rollers.
Roller support frame 23 fixed to cross support base 21
Is rotatably mounted symmetrically on a roller shaft 24 supported by the shaft. Belt groove 3c provided on the outer periphery of passive rotating member 3 and belt groove 7 provided on driving rotating member 7
c, the belt 1 is wound around both the grooves 3c and 7c.
2 are arranged. The belt 12 is supported at its intermediate portion by a roller 22 and is bent at a right angle with the roller 22 as a boundary. The belt grooves 3c, 7c and the belt 12 constitute a rotational torque transmitting unit that transmits rotational torque from the driving rotary member 7 to the passive rotary member 3. Other configurations are the same as those of the first embodiment shown in FIG. 1, and the corresponding components are denoted by the same reference numerals and description thereof will be omitted.

In the thus configured nut rotating device, after the nut 4 is screwed into the male screw 5, the nut 4
Is engaged with the passive rotating member 3, the gripping socket 25 is gripped by one hand, the handle 9 is rotated by the other hand, and the driving rotating member 7 is rotated. Rotation torque is belt groove 7
c to the belt 12, the belt groove 3c, and further to the nut engaging plate 3b of the passive rotating member 3. Then, since the nut 4 is rotated, the nut 4 is easily moved to a predetermined position in the longitudinal direction of the male screw 5.

In the present embodiment, the passive rotating member 3
The rotation center axis of the drive rotation member 7 is provided so as to be orthogonal to the rotation center axis. Therefore, the distance between the passive rotation member 3 and the drive rotation member 7 is shortened, and the size of the nut rotation device can be reduced. Further, since the rotation direction of the drive rotation member 7 is parallel to the longitudinal direction of the male screw 5, the operator can select a comfortable working posture according to the working state, and the work is facilitated. Also, as in the first embodiment, since the driving rotary member 7 is provided with the engagement plate 7f that can be connected to the electric tool 10, the nut 4 can be easily moved to a predetermined position by electric operation at high speed and with one hand. Can be done.

In this embodiment, the passive rotating member 3
Although the rotation center axes of the drive rotation member 7 and the drive rotation member 7 are made orthogonal to each other, the same effect can be obtained by intersecting both rotation center axes at an angle other than a right angle, for example, 45 degrees.

Embodiment 3 FIG. FIG. 5 is a sectional view showing another example of the nut rotating device of the present invention. In FIG. 5, 3
Reference numeral 0 denotes a passive bevel gear provided integrally with the passive rotary member 3 coaxially with the rotation axis of the passive rotary member 3. Reference numeral 31 denotes a drive-side bevel gear provided integrally with the drive rotation member 7 coaxially with the rotation axis of the drive rotation member 7. The drive-side bevel gear 31 is engaged with the passive-side bevel gear 30 at right angles to the rotation center axis of the passive-side bevel gear 30. Passive bevel gear 30 and drive bevel gear 31
Constitutes a rotational torque transmitting means for transmitting rotational torque from the driving rotary member 7 to the passive rotary member 3. The other configuration is the same as that of the second embodiment shown in FIG. 2, and the corresponding components are denoted by the same reference numerals and description thereof is omitted.

In the nut rotating device having such a configuration, similarly to the second embodiment shown in FIG. 2, the driving side is operated by the manual operation of the handle 9 or the power of the electric tool 10 connected to the engagement plate 7f. When the bevel gear 31 is rotated, the passive bevel gear 30 is rotated. Thereby, the nut 4 is rotated together with the nut engaging plate 3b, so that the nut 4 can be easily moved to a predetermined position in the longitudinal direction of the male screw 5.

In the present embodiment, the passive rotating member 3
The rotation center axis of the drive rotation member 7 is provided so as to be orthogonal to the rotation center axis of the drive rotation member 7, and the passive rotation member 3 and the drive rotation member 7 are connected by the meshing of the bevel gears 30 and 31. The distance from the rotating member 7 can be further reduced, and the size of the nut rotating device can be further reduced.
Further, the nut 4 can be moved to a predetermined position of the male screw 5 in an easy working posture according to the working state.

[0035]

According to the nut rotating device of the first aspect,
The support base and the support base are rotatably attached to the support base, and a through-hole through which a male screw is inserted is provided at an axial center position of the rotation shaft, and a grip portion that grips a nut screwed into the male screw further includes a through-hole. A passive rotating member provided at one end, a driving rotating member rotatably mounted on the support base so as to be separated from the passive rotating member, and a rotating torque transmitting means for transmitting the rotating torque of the driving rotating member to the passive rotating member. Have. Therefore, the nut 4 can be easily moved to a predetermined position over a long distance, and the workability is good.

In the nut rotating device according to the second aspect, the rotating torque transmitting means includes a belt groove provided on an outer peripheral portion of the passive rotating member and an outer peripheral portion of the driving rotating member, and a belt wound around both belt grooves. It is composed of Therefore, vibration and noise can be reduced.

In the nut rotating device according to a third aspect, the rotating torque transmitting means includes a passive bevel gear provided integrally with the passive rotating member coaxially with the rotating shaft of the passive rotating member, and a rotating shaft of the driving rotating member. The drive bevel gear is provided coaxially and integrally with the drive rotating member, and is configured with a drive bevel gear that meshes with the passive bevel gear. Therefore, the distance between the passive rotating member and the driving rotating member can be further reduced, and the nut rotating device can be made more compact.

In the nut rotating device of the fourth aspect, the rotational speed of the passive rotary member is configured to be higher than the rotational speed of the drive rotary member. Therefore, the rotation can be transmitted from the rotary member to the passive rotary member at an increased speed, the nut can be rotated at a high speed, and the nut can be moved quickly.

In the nut rotating device according to the fifth aspect, the drive rotating member is provided with a handle for manual rotation.
Therefore, the drive rotation member can be rotated manually.

In the nut rotating device according to the sixth aspect, the connecting portion that can be connected to the rotating shaft of the external driving source is provided at the axial position of the rotating shaft of the driving rotating member. Therefore, the nut can be easily and quickly moved to a predetermined position by an external drive source.

In the nut rotating device according to the seventh aspect, the passive rotating member and the driving rotating member are mounted on the support base so that the axes of the rotating shafts intersect each other. Therefore, the distance between the passive rotating member and the rotating member is shortened,
The nut rotating device can be made compact.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a nut rotating device of the present invention.

FIG. 2 is a sectional view showing another example of the nut rotation device of the present invention.

FIG. 3 is a side view showing a part along a line III-III in FIG. 2 as a cross section;

FIG. 4 is a perspective view of a gripping socket.

FIG. 5 is a sectional view showing another example of the nut rotating device of the present invention.

[Explanation of symbols]

1 support stand, 3 passive rotating member, 3a nut receiving section (holding section), 3b nut engaging plate (holding section),
3c, 7c Belt groove (rotation torque transmission means), 3d
Through-hole, 7 drive rotating member, 7e connection shaft (connection portion),
7f Engagement plate (connection part), 9 handle, 12 belt (rotation torque transmission means), 21 cross support stand (support stand), 30 passive bevel gear (rotation torque transmission means), 3
1 Drive-side bevel gear (rotary torque transmitting means).

Claims (7)

[Claims] 1. A support base and a through-hole that is rotatably attached to the support base and that penetrates a male screw is provided through an axial center position of a rotary shaft, and further holds a nut screwed into the male screw. A passive rotating member having a gripper provided at one end of the through-hole; a driving rotating member rotatably mounted on the support base so as to be separated from the passive rotating member; and a rotational torque of the driving rotating member. A rotating torque transmitting means for transmitting the torque to a passive rotating member. 2. The rotating torque transmitting means includes a belt groove provided on an outer peripheral portion of the passive rotating member and an outer peripheral portion of the driving rotating member, respectively, and a belt wound around both belt grooves. The nut rotation device according to claim 1, wherein 3. A passive bevel gear provided integrally with the passive rotary member coaxially with the rotary shaft of the passive rotary member, and the drive torque transmitting means coaxially with the rotary axis of the drive rotary member. 2. The nut rotating device according to claim 1, wherein the nut rotating device comprises a drive-side bevel gear provided integrally with the rotating member and meshing with the passive-side bevel gear. 4. The nut rotation device according to claim 1, wherein the rotation speed of the passive rotation member is configured to be higher than the rotation speed of the drive rotation member. 5. The nut rotation device according to claim 1, wherein the drive rotation member is provided with a handle for manual rotation. 6. The drive unit according to claim 1, wherein a connection portion connectable to a rotation shaft of an external drive source is provided at an axial center position of the rotation shaft of the drive rotation member. Nut rotation device. 7. The driving rotary member according to claim 1, wherein the passive rotary member and the driving rotary member are mounted on the support base such that the axes of the rotary shafts intersect each other. A nut rotation device according to item 1.