JPH083705Y2 - Axle device equipped with one-way clutch - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention utilizes a required number of one-way clutches having a function of allowing forward and / or reverse rotation rotational drive transmission, and the required number of one-way clutches is a shaft such as a screw shaft. By mounting it on the position of a member to be positioned or a device to be positioned via a one-way clutch for forward rotation or reverse rotation with a work tool such as a spanner or a bar spanner, or tightening or loosening a member to be tightened. The present invention relates to a shaft device such as a screw shaft equipped with a one-way clutch.

[0002]

2. Description of the Related Art Conventionally, as a means for positioning an industrial member, a spanner engaging portion is provided on a shaft such as a screw shaft, a worm shaft, a pinion shaft, and a working tool such as a spanner, a bar spanner, or a ratchet wrench is used. Lock it with the spanner hook
Rotate shafts such as screw shafts, worm shafts, pinion shafts,
In many cases, the positioning of the positioned member or the positioned device is adjusted according to the rotation amount. Further, also in a means for tightening or loosening a tightening member such as a bolt or a nut, it is often the case that the screw shaft or the like is rotated by the means to tighten or loosen.

[0003]

In the means for using a working tool such as a spanner and a bar spanner according to the above-mentioned conventional technique, the shaft is continuously rotated in one direction by intermittent repetitive operation by a minute angular displacement of the working tool. Since it is not possible to make fine adjustments, a wide space for the work tool to pass around is required around the spanner hook locking part. Since it is necessary to frequently change the stop position in sequence, there are problems such as a decrease in work efficiency and poor accuracy. Further, in the means using work tools such as the ratchet wrench according to the above-mentioned conventional technique, since the main part of the wrench main body is large, if the periphery of the spanner hook locking portion is narrow, it is locked by the work tools such as the ratchet wrench. If not, or even if it can be locked, it is not possible to rotate the wrench hook locking part, and since the wrench body is combined with the socket, the wrench hook locking part must be located at the shaft end There were problems such as being there. Generally, in the technical field to which the present invention belongs, it is extremely rare that a wide space is provided around the spanner hooking portion, and in many cases, the spanner hooking portion cannot be provided at the shaft end. .

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to have a function of allowing rotation drive transmission of forward rotation and / or reverse rotation. One one-way clutch (generally, a pair of two one-way clutches having a function of permitting the rotation drive transmission of the normal rotation and the reverse rotation is required because the normal rotation and the reverse rotation are required). By mounting on the shaft such as the screw shaft, even if the space around the spanner hooking portion is narrow, the spanner hooking portion can be easily, accurately and accurately moved without changing the locking position. It is an object of the present invention to provide a shaft device equipped with a one-way clutch that can be finely adjusted in efficiency and that can be position-adjusted even if the spanner hooking portion is mounted at any position on the shaft.

[0005]

In order to achieve the above object, a shaft device equipped with a one-way clutch according to the present invention has a ball having a male screw, a female screw, a worm, a pinion gear, and the like. , Ones with sprags such as rollers and eyebrows that are difficult to insert in one direction between the driving side and driven side, ones using ratchets, ones using cams, etc. Yes, Figure 1
Shows a typical embodiment mounted on a male screw shaft, and a shaft portion provided at one end of a male screw shaft 3 by fixing a one-way clutch (left) 2L to a spanner hooking member (left) 1L which is a driving locking member. 3a
One-way clutch (right) 2R which loosely inserts into the outer peripheral part of the wrench, and allows the spanner hooking member (right) 1R, which is a drive locking member, to transmit rotational drive in the opposite direction to the one-way clutch (left) 2L.
One-way fixed to the wrench hook member (left) 1L by parallelly loosely inserting the wrench hook member (left) 1L and the one-way clutch (left) 2L fixed to the outer peripheral portion of the shaft portion 3a. The one-way clutch (right) 2R fixed to the clutch (left) 2L and the spanner hook member (right) 1R are independently
Each of the members (1L, 2L and 1R, 2R) is mounted on the outer periphery of the shaft portion 3a so as to freely rotate in a reverse rotation direction (idling direction) that allows rotation drive transmission.
Is a member that is locked to the shaft portion 3a by a washer 4 and a retaining ring 5 or other means than shown.

[0006]

Here, FIG. 1 which is an arrow A view of FIG.
In (b), it is assumed that the one-way clutch (left) 2L has a function of allowing rotation drive transmission when rotating left and the one-way clutch (right) 2R having a function of allowing rotation drive transmission when rotating right, respectively. ) When 1L is rotated counterclockwise, the one-way clutch (left) 2L and the male screw portion 3b provided on the other end of the screw shaft 3 via the shaft portion 3a rotate counterclockwise. When the member (left) 1L is rotated in the clockwise direction, the one-way clutch (left) 2L does not have a rotational drive transmission capability, so that it idles and the male screw shaft 3 remains stationary.

Contrary to the above, when the spanner hook member (right) 1R is rotated clockwise, the screw portion 3b rotates clockwise through the one-way clutch (right) 2R and the shaft portion 3a. When the spanner hook member (right) 1R is rotated in the counterclockwise direction, the one-way clutch (right) 2R has no rotational drive transmission capability, so that it idles and the male screw shaft 3 remains stationary.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Representative embodiments and application examples of the present invention will be described with reference to the drawings. In each of the drawings used to describe the present invention, for convenience of description, a one-way clutch (left) 2L having a function of allowing left rotation drive transmission is shown on the left side, and a function of allowing right rotation drive transmission is shown. The one-way clutch (right) 2R that it has is shown on the right side.
The function of the present invention is not affected even if the arrangement is reversed as shown.

FIG. 1 shows members (1L, 2) of the device of the present invention.
(L, 1R, 2R, etc.) is shown in a representative embodiment in which a male screw shaft is mounted, and the details are described in the above "Means for Solving the Problems".
In addition, it is as described in the section of "action".

FIG. 2 shows members (1L, 2) of the device of the present invention.
(L, 1R, 2R, etc.) is shown in a representative embodiment in which a female screw shaft is mounted, and a spanner hook member (left) as a driving locking member is shown.
One-way clutch (left) 2L fixed to 1L Female screw shaft 13
Is loosely inserted into the outer peripheral portion of the shaft portion 13a provided in a part of the shaft, and rotational drive transmission in the opposite direction to the one-way clutch (left) 2L is allowed to the spanner hook member (right) 1R which is a driving locking member. One-way clutch (right) 2R is fixed, and is loosely inserted in parallel with the one-way clutch (left) 2L on the outer peripheral portion of the shaft portion 13a, and one-way clutch (left) is fixed to the spanner hook member (left) 1L. ) 2L and a one-way clutch (right) 2R fixed to the spanner hook member (right) 1R are independent of each other, respectively, in the reverse rotation direction (idle direction) on the outer periphery of the shaft portion 13a, each of which allows rotation drive transmission. Each member (1L, 2L and 1R, 2R) is attached to the washer 4 so that it can be freely rotated.
And the retaining ring 5 or the shaft portion 13 by means other than those shown in the drawings.
It is locked to a.

Here, FIG. 2 which is a view on arrow B of FIG.
In (b), it is assumed that the one-way clutch (left) 2L has a function of allowing rotation drive transmission when rotating left and the one-way clutch (right) 2R having a function of allowing rotation drive transmission when rotating right, respectively. ) When 1L is rotated counterclockwise, the screw portion 13b rotates counterclockwise because it is provided on the inner circumference of the female screw shaft 13 via the one-way clutch (left) 2L and the shaft portion 13a. When the (left) 1L is rotated in the clockwise direction, the one-way clutch (left) 2L does not have a rotational drive transmission capability, so that it idles and the female screw shaft 13 keeps stationary.

Contrary to the above, when the spanner hook member (right) 1R is rotated clockwise, the female screw portion 13b rotates clockwise through the one-way clutch (right) 2R and the shaft portion 13a. When the spanner hook member (right) 1R is rotated in the counterclockwise direction, the one-way clutch (right) 2R does not have a rotational drive transmission capability, so that it spins idle and the female screw shaft 13 remains stationary.

3 and 4 show an embodiment showing means for adjusting, tightening and loosening the device of the present invention to the left rotation or the right rotation. In FIGS. 1 and 2, the outer peripheral shapes of the spanner hanging member (left) 1L and the spanner hanging member (right) 1R are shown as hexagons, but the outer circumferential shapes are the spanner hanging member (left) 1L and the spanner hanging member. (Right) The work tool used for rotating the 1R may have a shape that can be hooked. For example, in the case of rotating operation using a spanner, as shown in FIG. A wrench hooking portion 18a having a shape (a hexagon in this embodiment) having a plurality of facing surfaces is provided, and the wrench 8 is inserted into the wrench hooking portion 18a at a position where the operation can be easily performed. The member 18 is rotated.

When the simple rod spanner is used for rotation, the outer peripheral shape of the spanner hooking member 19 is, for example, a cylindrical shape as shown in FIG. 4, and the external shape of the tip portion of the simple rod spanner 9 to be used has a similar shape. A wrench hook engaging portion 19a consisting of one or a plurality of recessed holes is provided on the outer peripheral portion of the wrench hook member 19, and the simple bar wrench 9 is attached to the wrench hook engaging portion 19a located at a position where the operation is easy. Is inserted and the spanner hooking member 19 is rotated.

In FIG. 5, a member (1L, 2L, 1R, 2R) of the device of the present invention is attached to a shaft portion 21a provided at one end of the male screw shaft 21.
Etc.) are mounted as in the embodiment shown in FIG.
2 is an application example of a positioning member (not shown) or a positioning adjusting device for a positioning device (not shown).

A male screw portion 21 provided on the other end of the male screw shaft 21.
Since b is provided on the side plate 24, the male screw shaft 21 is threadedly engaged with the screw portion 24b, and the front end portion 21c of the male screw portion 21b is in contact with the positioning plate 22.
It can freely rotate along the screw lead of b. The positioning plate 22 is provided with two sliding hole portions 22a, 22a,
Two guide rods 25, both ends of which are axially fixed by side plates 23, 24,
25 is pivotally attached to the sliding hole portions 22a, 22a, and the positioning plate 22 freely slides on the axes of the two guide rods 25, 25 in the left or right direction in FIG. , 25
The compression springs 26, 26 fitted on the outer circumference of the male screw shaft 21 and sandwiched between the side plate 23 and the positioning plate 22 constantly press the distal end portion 21c of the male screw shaft 21.

Therefore, as shown in the arrow C of FIG. 5, the one-way clutch (left) 2 having the function of allowing the transmission of the left rotation drive.
When the spanner hooking member (left) 1L fixed to L is rotated counterclockwise, the one-way clutch (left) 2L and the shaft portion 21.
When the male screw portion 21b and the female screw portion 24b are right lead screws, the male screw portion 21b rotates counterclockwise via the a and the male screw portion 21b is screwed with the female screw portion 24b. 21 moves linearly to the right in FIG.
Since 2 is linearly moved to the right by pressing the compression springs 26, 26, the positioning of the positioned member (not shown) or the positioned device mounted on the positioning plate 22 to the right in FIG. 5 can be adjusted.

Further, in order to perform the positioning in the opposite direction to the above, as shown in the arrow C of FIG. 5, the spanner hook member (the right) fixed to the one-way clutch (right) 2R having the function of permitting the right rotation drive transmission ( By rotating the right) 1R in the clockwise direction, the positioning adjustment of the positioned member (not shown) mounted on the positioning plate 22 or the positioned device to the left in FIG. 5 can be performed.

In FIG. 6, a member (1L, 2L, 1R, 2) of the device of the present invention is attached to a shaft portion 31a provided on the outer peripheral portion of the female screw shaft 31.
R) is mounted as in the embodiment shown in FIG. 2, and the positioning adjustment device of the positioned member or the positioned device (not shown) mounted on the positioning plate 33 is applied.

The female screw shaft 31 is screwed with a male screw portion 32b provided on the outer periphery of a male screw shaft 32 having a screw portion 31b fixed to the side plates 34 and 35 so as to be provided on the inner periphery of the shaft portion 31a. With the end face 31c in contact with the positioning plate 33, the female screw shaft 31 can freely rotate along the screw lead of the male screw portion 32b. The positioning plate 33 is provided with two sliding holes,
The male screw shaft 32 is loosely inserted in one sliding hole 33a, and the guide rod 36 is axially mounted in the other sliding hole 33b. The positioning plate 33 has both ends axially fixed to the side plates 34 and 35. Screw shaft 32
6 freely slides on the shaft of the guide rod 36 in the left or right direction in FIG. 6, but it is fitted on the outer periphery of the male screw shaft 32 by the compression spring 37 sandwiched between the side plate 34 and the positioning plate 33. The positioning plate 33 is constantly pressed against the end surface 31c of the female screw shaft 31.

Therefore, as shown by the arrow D in FIG. 6, the one-way clutch (left) 2 having the function of permitting the transmission of the left rotational drive.
When the spanner hook member (left) 1L fixed to L is rotated counterclockwise, the one-way clutch (left) 2L and the shaft portion 31
Since the female screw portion 31b rotates counterclockwise via a and the female screw portion 31b and the male screw portion 32b are screwed together, when the female screw portion 31b and the male screw portion 32b are right lead screws, the female screw shaft 31 moves linearly to the right in FIG.
Since 3 is linearly moved to the right by the pressing of the compression spring 37, the positioning of the positioned member (not shown) or the positioned device mounted on the positioning plate 33 to the right in FIG. 6 can be adjusted.

Further, in order to perform the positioning in the opposite direction to the above, as shown in the arrow D of FIG. 6, a spanner hook member (right) fixed to the one-way clutch (right) 2R having a function of permitting the transmission of the clockwise rotation drive ( By rotating the right) 1R in the clockwise direction, the positioning adjustment of the positioned member (not shown) or the positioned device mounted on the positioning plate 33 in the left direction in FIG. 6 can be performed.

FIG. 7 shows a member (1L, 2L, 1R, 2) of the device of the present invention on a shaft portion 41a provided at one end of the worm shaft 41.
R or the like) as in the embodiment shown in FIG. 1, and either the worm wheel 42 or a part of the worm wheel shaft 43, or the worm wheel 42 and the wheel shaft 4
3 is an application example of a positioning member (not shown) or a positioning adjusting device of a positioning device, which is mounted on a part of each of the parts 3.

Shaft portion 41b provided at the other end of the worm shaft 41
In addition, a shaft portion 41c is provided in an intermediate portion between the shaft portion 41a and the shaft portion 41b, the shaft portion 41b is axially attached to a hole portion 44b provided in the side plate 44, and the shaft portion 41c is provided in a hole portion 45c provided in the side plate 45. Worm 4 that is attached to the shaft and is provided in the approximate center of worm shaft 41.
1w meshes with a worm gear 42g provided on the outer periphery of the worm wheel 42, and the worm shaft 41 freely rotates. The worm wheel 42 has a shaft hole portion 42a provided at a shaft center portion of the worm wheel 42 fixed to a wheel shaft 43 axially attached to a side plate (not shown).
7 freely rotates in the clockwise direction or the counterclockwise direction in FIG. The positioned member or the positioned device (not shown) is attached to a part of either the worm wheel 42 or the wheel shaft 43, or a part of each of the worm wheel 42 and the wheel shaft 43.

Therefore, in the direction of arrow E in FIG. 7, the one-way clutch (left) 2 having the function of permitting the transmission of the left rotation drive.
When the wrench hook member (left) 1L fixed to L is rotated counterclockwise, the one-way clutch (left) 2L and the shaft portion 41.
Since the worm 41w rotates counterclockwise via a and the worm 41w meshes with the worm gear 42g,
When the tooth profile of the worm 41w and the worm gear 42g is in the right-hand twist direction, the worm wheel 42 and the wheel shaft 43
Is rotated counterclockwise in FIG. 7, so either part of the worm wheel 42 or the wheel shaft 43,
Alternatively, it is possible to perform positioning adjustment in the counterclockwise direction in FIG. 7 of a positioned member or a positioning device (not shown) mounted on a part of each of the worm wheel 42 and the wheel shaft 43.

Further, in order to perform the positioning in the opposite direction to the above, as shown in the arrow E of FIG. 7, the spanner hook member (right) fixed to the one-way clutch (right) 2R having a function of permitting the right rotation drive transmission. Right) By rotating 1R clockwise, the worm wheel 42 or wheel shaft 43
7, or the position of a member to be positioned or a device to be positioned (not shown) mounted on each of the worm wheel 42 and the wheel shaft 43 can be adjusted in the clockwise direction in FIG. 7.

FIG. 8 shows a member (1L, 2L, 1R, 2) of the device of the present invention on a shaft portion 51a provided at one end of the pinion shaft 51.
R etc.) as in the embodiment shown in FIG.
It is an application example of a positioning adjustment device for a positioned member or a positioned device (not shown) mounted on the.

A shaft portion 51b provided at the other end of the pinion shaft 51
In addition, a shaft portion 51c is provided at an intermediate portion between the shaft portion 51a and the shaft portion 51b, and the shaft portion 51b is axially attached to a hole portion 54b provided in the side plate 54, and the shaft portion 51c is provided in a hole portion 55c provided in the side plate 55. The shaft 51 is attached to the shaft, and the shaft 51 is provided at an intermediate portion between the shaft 51b and the shaft 51c.
hole 5 provided at the center of the pinion gear 52 provided with d
The pinion shaft 51 is free to rotate with the shaft stopped with 2d. In the pinion 52 that is axially fixed to the shaft portion 51d, the pinion gear 52g provided on the outer peripheral portion meshes with the rack gear 53r provided on the rack 53, and the rack 53 held by a slidable holding member (not shown) , Along with the normal line on the pitch circumference of the pinion gear 52g as the pinion 52 rotates.
In (b), move freely in the left or right direction. A member to be positioned or a device to be positioned (not shown) is attached to a part of the rack 53.

Therefore, FIG. 8 which is an arrow F view of FIG.
In (b), when the spanner hook member (left) 1L fixed to the one-way clutch (left) 2L having a function of allowing the leftward rotation drive transmission is rotated counterclockwise, the one-way clutch (left) 2L and The pinion shaft 51 and the pinion 52 rotate counterclockwise via the shaft portion 51a, and the pinion gear 5
Since 2g meshes with the rack gear 53r, the rack 5
3 moves linearly to the left in FIG. 8B, so rack 5
It is possible to adjust the positioning of the positioned member or the positioned device (not shown) mounted on the No. 3 to the left in FIG. 8B.

Further, in order to perform the positioning in the opposite direction to the above, in FIG. 8 (b) which is an arrow F view of FIG. 8 (a), a one-way clutch (function of allowing the right rotation drive transmission) is provided. Right) Spanner hook member (right) 1R fixed to 2R
By rotating in a clockwise direction, it is possible to adjust the positioning of the positioned member or the positioned device (not shown) mounted on the rack 53 to the right in FIG. 8B.

The device of the present invention can be easily applied to the bolts or nuts used for the purpose of tightening and the like, in addition to the above-described embodiments and application examples.

[0032]

[Effects of the Invention] The present invention is configured as described above and has the following effects.

A shaft for fixing a pair of one-way clutches having a function of allowing rotation drive transmission in opposite directions to the pair of spanner hook members, and for displacing the pair of one-way clutches fixed to the spanner hook member. By mounting the wrench on the wrench, even if the space around the wrench hook is narrow, fine adjustment can be performed easily, accurately, and highly efficiently without changing the locking position of the wrench hook. Positioning adjustment is possible even if the member is mounted at any position on the shaft.

Further, since there is no problem even if the space around the spanner hanging member is small, there is little restriction on other members mounted around the spanner hanging member.

Further, a work tool used for rotating the spanner hook member may be a simple one such as a general-purpose spanner or a simple bar spanner.

[Brief description of drawings]

1 shows an embodiment in which the device of the present invention is mounted on a male screw shaft, FIG. 1 (a) is a sectional view, and FIG. 1 (b) is a side view taken along the arrow A.

2 shows an embodiment in which the device of the present invention is mounted on a female screw shaft, FIG. 2 (a) is a sectional view, and FIG. 2 (b) is a side view taken along the arrow B.

FIG. 3 is a partial view showing an embodiment in which the spanner hook member of the device of the present invention is rotated using a general-purpose spanner.

FIG. 4 is a partial view showing an embodiment in which the spanner hook member of the device of the present invention is rotated using a simple stick spanner.

FIG. 5 is a sectional view showing an application example in which the device of the present invention is mounted on a male screw shaft.

FIG. 6 is a sectional view showing an application example in which the device of the present invention is mounted on a female screw shaft.

FIG. 7 is a sectional view showing an application example in which the device of the present invention is mounted on a worm shaft.

FIG. 8 shows an application example in which the device of the present invention is mounted on a pinion shaft. FIG. 8 (a) is a sectional view and FIG. 8 (b) is an arrow 50-.
It is a side view by 50.

[Explanation of symbols]

 1L Spanner hanging member (left) 1R Spanner hanging member (right) 2L One-way clutch (left) 2R One-way clutch (right) 3 Male screw shaft 13 Female screw shaft 21 Male screw shaft 31 Female screw shaft 41 Worm shaft 51 Pinion shaft

Claims (1)

[Scope of utility model registration request] 1. A drive locking member and a one-way clutch are fixed to each other, and a required number of the fixed ones are fixed to the shaft in an action direction in which the rotational drive transmission of the one-way clutch is desired, and the desired shaft is obtained. A shaft device equipped with a one-way clutch, wherein the shaft device can be intermittently or continuously rotated by a desired angle in the acting direction.