JPH0238721A - Magnetic clutch mechanism - Google Patents

Abstract

PURPOSE:To let an output rotating element by positively braked in rotation at the time of releasing the connection of a clutch main body by letting the output rotating element be checked in rotation in the both directions of normal and reverse rotation through braking means for braking in both normal rotation and reverse rotation. CONSTITUTION:When No.1 electromagnetic clutch device 2 is turned on, No.2 electromagnetic clutch device 4 is turned off, No.1 braking means 8 is turned off, and No.2 braking means 12 is turned on with an electric motor 154 rotated, an axial member 28 is rotated normally. And when the above-side actuation is conditioned to a reverse state, the axial member is rotated reversely. In this case, the actuation of the braking means 8 and 12 allows the axial member (output rotating element) 28 to be braked in rotation at the time of releasing the connection of No.1 and No.2 electromagnetic device 2 and 4. By this constitution, drive torque is positively transferred when the clutch main body is drivingly connected. On the other hand, the output rotating element can positively be braked in rotation at the time of releasing the connection.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an electromagnetic clutch mechanism and a brake device that can be conveniently combined with an electromagnetic clutch mechanism.

<Prior Art> Conventionally, electromagnetic clutch mechanisms have been widely used to selectively transmit the rotational force of an input rotating element to an output rotating element. An example of this electromagnetic clutch mechanism is the one disclosed in Japanese Unexamined Patent Publication No. 59-175633, and this known electromagnetic clutch mechanism is a clutch that releasably drives and connects an input rotating element and an output rotating element. It has a main body. The clutch body includes a rotor that is rotated together with the input rotating element, an armature assembly that includes an armature and a biasing spring member that biases the armature away from the rotor, and an armature assembly that biases the armature away from the rotor against the biasing action of the biasing spring member. a first boss that rotates together with the input rotating element; a second boss that rotates together with the output rotating element;
A coil spring means is fitted over the first boss and the second boss. When the electromagnetic means is de-energized, the coil spring means is not contracted, so that the rotational driving force from the manual rotary element is not transmitted to the output rotary element via the clutch body, but when the i-magnetic means is deenergized. The armature is then magnetically attracted to the rotor, thereby contracting the coil spring means and drivingly connecting the first boss and the second boss via the coil spring means, thus increasing the rotational driving force of the input rotating element. is transmitted to the output rotating element via the clutch body.

However, such an electromagnetic clutch mechanism has the following problems to be solved.

That is, when the electromagnetic means is energized, the rotational driving force from the input rotational element is transmitted to the output rotational element, and the output rotational element is rotated in a predetermined direction.

On the other hand, when the electromagnetic means is deenergized, the rotational driving force from the input rotating element is not transmitted to the output rotating element. Therefore, if a relatively large external load acts on the output rotating element during ii. electromagnetic means deenergization, the output rotating element will move in a predetermined direction (for example, forward direction) or in a predetermined direction due to the action of the external load, regardless of the input rotating element. The output rotating element cannot be controlled as desired using the electromagnetic clutch mechanism.

<Object of the Invention> The present invention has been made in view of the above facts, and its main purpose is to transmit the rotational driving force from the input rotating element to the output rotating element as required when the clutch body is connected for driving. This is an excellent mechanical system that can reliably brake the rotation of the output rotating element when the clutch body is disconnected.
The object of the present invention is to provide a clutch mechanism.

Another object of the present invention is to reliably brake rotation of an output rotating element when both electromagnetic clutch mechanisms are deenergized in a composite electromagnetic clutch mechanism composed of two electromagnetic clutch mechanisms. The purpose of the present invention is to provide an excellent composite electromagnetic clutch mechanism.

Still another object of the present invention is to provide an excellent brake device that can reliably brake rotation of rotating elements such as shaft members.

Specific example> Further details will be given below with reference to the accompanying drawings.

In FIG. 1 showing a composite electromagnetic clutch mechanism, the illustrated composite electromagnetic clutch mechanism is composed of a first electromagnetic clutch mechanism designated by number 2 and a second electromagnetic clutch mechanism designated by number 4. The first electromagnetic clutch mechanism 2 includes a clutch body 6 and a first brake means 8 that acts as a brake means for braking forward rotation, and the second electromagnetic clutch mechanism 4 includes a clutch body 10 and a first brake means 8 that acts as a brake means for braking reverse rotation. A second braking means 12 is provided.

The clutch body 6 in the first electromagnetic clutch mechanism 2 will be explained with reference to FIGS. 2 and 3 as well as FIG. 1. The illustrated clutch body 6 includes an inner transmission means 14, an outer transmission means 16, A coil spring means 18, an armature assembly 20 and an electromagnetic means 22 are provided. In a specific example, as shown in FIG.
and 26, a shaft member 28 (constituting a second rotating element) is rotatably supported via a bearing member, and a sprocket 30 (constituting a first rotating element) is attached to this shaft member 28.
is relatively rotatably mounted, and this sprocket 30
The clutch body 6 is interposed between the shaft member 28 and the shaft member 28 .

The illustrated inner transmission means 14 includes a first inner member 32 and a second inner member 34 . The first inner member 32 is composed of a cylindrical member, and a relatively small annular flange 36 is provided at one end (the left end in FIGS. 2 and 3), and a relatively large annular flange 36 is provided in the middle thereof. Annular flange 3
8 is provided, and the other part 33 (the right part in FIGS. 2 and 3) acts as a boss part. This first inner member 32 is rotatably attached to the shaft member 28 and is
30 is attached to the first inner member 32 so as to rotate together with the sprocket 30. In the illustrated example, a plurality of (for example, two) through holes 40 are formed in the sprocket 30, and the mounting screw 42 is inserted through these through holes 40. By screwing the sprocket 30 onto the annular flange 36, the sprocket 30 is attached to the first inner member 3.
Attached to one end of 2. The first inner member 32 may be integrally formed with the sprocket 30, and the second inner member 34 is located to the right of the first inner member 32 in FIG. This second inner member 34
For example, it has a large diameter part 44 provided at the friend part in FIGS. 2 and 3 and a small diameter part 46 provided at the right part in FIGS. 2 and 3, and the large diameter part 44 acts as a boss part. do. The second inner member 34 is attached to rotate together with the shaft member 28. In the specific example, a pair of recesses 48 defining pin receiving portions are formed at one end of the second inner member 34, that is, the left end in FIG. By positioning both ends of the pin member 52 mounted on the shaft member 28 (FIG. 3) within the recess 48, the second inner member 34 is mounted so as to rotate together with the shaft member 28 (the first figure). The other portion of the first inner member 32 and the large diameter portion 44 of the second inner member 34 extend close to each other, and the opposing end surfaces of both inner members are brought into contact with or close to each other. The outer diameter of the other portion 33 of the first inner member 32 and the large diameter portion 4 of the second inner member 34
4 have substantially equal outer diameters and extend substantially continuously.

Note that the second inner member 34 may be formed integrally with the shaft member 28.

The illustrated outer transmission means 16 also includes a first outer member 54 and a second outer member 56. First outer member 54
is composed of a hollow sleeve-like member, and the sprocket 3
It is attached so that it rotates together with 0. In the specific example, a through hole 58 is formed in the annular flange 38 of the first inner member 32, and a receiving hole is formed in one end surface (the left end surface in FIGS. 2 and 3) of the first outer member 54. The first outer member 54 is attached to the first inner member 32 by press-fitting the pin member 60 into the through hole 58 and the receiving hole. This first outer member 54 is connected to the sprocket 3
the first outer member 5, which may be adapted to be attached directly to the
4 is disposed on the outside of the first inner member 32 so as to cover the other part 33, and the inner circumferential surface of the first outer member 54 (one end of the first outer member 54 has an inner diameter smaller than that of the other part). is somewhat small and comes into contact with the first inner member 32, so that there is a gap between the inner circumferential surface of the other portion (in detail) and the outer circumferential surface of the other portion 33 of the first inner member 32. , an annular space is defined. Further, the second outer member 56 includes a first member 62, a second member 64, and a third member 66. The first member 62 is made of an annular member, and has two through holes 68 formed at predetermined locations. Further, the second member 64 is constituted by an annular member, and a pair of engaging protrusions 70 protruding radially outward are integrally provided at opposing portions of the outer peripheral surface thereof. This second member 64 is somewhat smaller than the first member 62, and has a pair of holes on one end surface (the left end surface in FIGS. 2 and 3) corresponding to the through hole 68 in the first member 62. A female screw hole is formed (Fig. 2). Further, the third member 66 has a circular end wall 72
It has a cylindrical wall 74 extending from the end wall 72.

At one end of the cylindrical wall 74 (the left end in FIGS. 2 and 3), an annular recess 76 is defined at its inner peripheral edge corresponding to the second member 64. A pair of recesses 78 are defined at predetermined portions of the annular recess 76 in correspondence with the 64 engaging protrusions 70 . The first member 62 and the second member
The members 64 are connected as required by threading the mounting screw 80 through the through hole 68 of the first member 62 and into the female threaded hole of the second member 64 (FIG. 2). Also, the second
The member 64 and the third member 66 are mounted so as to rotate together by positioning the outer peripheral edge of the second member 64 in the annular recess 76 and positioning the engaging protrusion 70 in the recess 78. be done. The second outer member 56 is attached to rotate together with the shaft member 28. In the specific example, the tip of the small diameter portion 46 of the second inner member 34 is processed such as serrations, and the processed portion 4
Press-fit hole 7 formed in end wall 72 of third member 66 at 6a
3, the second outer member 56 becomes the second outer member 56.
It is mounted so as to rotate together with the inner member 34 of. The second member 64 is disposed on the outside so as to cover the large diameter portion 44 of the second inner member 340, and an annular space is defined between its inner circumferential surface and the outer circumferential surface of the large diameter portion 44. The first outer member 54 and the second member 64 of the second outer member 56 extend close to each other, and their opposing end surfaces are brought into contact with or close to each other. The inner diameter of the first outer member 54 (particularly other parts except one end) and the second outer member 56
The inner diameters of the second members 64 are substantially equal, and their inner peripheral surfaces extend substantially continuously.

Note that this second outer member 56 may be directly attached to the shaft member 2.

The illustrated armature assembly 20 is rotatably mounted to the base of the reduced diameter section 46 of the second inner member 34 and is connected to the space defined by the second member 64 and the third member 66 in the second outer member 56. is housed within. The armature assembly 20 includes an armature 82, a biasing spring member 84, and a support rotor 86. The support rotating body 86 is composed of a short cylindrical member, and is connected to the small diameter portion 46 of the second inner member 34.
It is rotatably attached to the An annular flange projecting to the right is integrally provided on the right end surface of the support rotating body 86 in FIGS. 2 and 3 at its inner peripheral edge. This supporting rotary body 8G is preferably formed from lightweight plastic in order to improve the responsiveness of the clutch mechanism 2. The biasing spring member 84 is supported by the annular flange of the support rotor 86, and its center portion 88 is fixed to the right end surface of the support rotor 86 by a fixing plate 90. The armature 82 is attached to a support rotor 86 via a biasing spring member 84. The armature 82 is comprised of an annular plate having an outer shape that generally corresponds to the end wall 72 of the third member 66 and is disposed between the end wall 72 and the biasing spring member 84 . The biasing spring member 84 has a plurality of (three in the specific example) protrusions 91 extending radially outward from a central portion 88 in a sickle shape, and a rivet is attached to the free end of each of the plurality of protrusions 91. The armature 82 is fixed by a fixing member 92 such as the one shown in FIG. This biasing spring member 84
2 is elastically biased in a direction M away from the end wall 72 of the third member 66 (which also functions as a rotor). The configuration of this amateur assembly 20 is, for example,
This is substantially the same as that disclosed in Japanese Patent No. 6930.

The electromagnetic means 22 is located on the right side of the end wall 72 of the third member 66 in FIGS.

1!1′f! 1 means 22 has a field core 94 and a coil body 96 attached to the field core 94,
The field core 94 is connected to the shaft member 28 via the sleeve 98.
A protrusion 100 is provided on the outer circumferential surface of the 5° field core 94 (FIG. 2), which is rotatably attached to the 5° field core 94, and a recess 102 is formed in the protrusion 100. On the other hand, the support plate 26 is provided with a locking protrusion 104 by bending a portion inward, and the locking protrusion 104 is locked in the recess 102 of the protrusion 100. Figure 2). Therefore, the electromagnetic means 22 is not rotated by the rotation of the shaft member 28, which will be described later. Furthermore, the first
．． On the outside of the inner member 32 (on the left side in FIG. 2) and on the outside of the electromagnetic means 22 (on the right side in FIG. 2), in order to prevent various components from separating from the shaft member 28,
A locking member 106 is locked to the shaft member 28.

In the specific example, the electromagnetic means 22 is connected to the end wall 72 of the third member 66.
The third member 6
A cylindrical wall 74 at 6 projects beyond the end wall 72 to the right in FIGS. Thus the cylindrical wall 74
If the clutch mechanism 22 is made to protrude so as to surround a part of the electromagnetic means 22, the magnetic attraction effect of the electromagnetic means 22 can be improved, thereby increasing the responsiveness of the clutch mechanism itself.

A coil spring means 18 is arranged between the inner transmission means 14 and the outer transmission means 16. More specifically, the coil spring means I8 is disposed inside the outer transmitting means 16 so as to fit over the inner transmitting means 14, and the coil spring means I8 is disposed inside the outer transmitting means 16 so that the inner transmitting means 14 is fitted over the first inner member 32.
(the above-mentioned other part 33 that acts as a boss part) and the second inner member 34 (large diameter part 44), and extends over the outer peripheral surfaces of the first outer member 54 (the other part except one end part). and extends across the inner circumferential surface of the second member 64 in the second outer member 56 . One end 1 of this coil spring means 18
08 (left end in FIGS. 2 and 3) is connected to a locking recess 110 formed in the inner peripheral surface of the first outer member 54 by locking therein, and the other end ll2
(Right end in FIGS. 2 and 3) is the support rotating body 84
This can be done by locking into a notch 114 (in a specific example, one of a plurality of notches 114 formed at intervals in the circumferential direction) formed at the left end in FIGS. 2 and 3. (Figure 2).

As shown in FIG. 3, the coil spring means 18 rotates from the one end 108 to the other end 112 in the right direction when viewed from the left side in FIGS. When the support rotating body 8
When a force that prevents the rotation of the sprocket 30 acts on the sprocket 4 and causes the two to rotate relative to each other, the support rotating body 84 contracts.
When a force that prevents the rotation is applied to the coil and the two are rotated relative to each other, the coil expands.

In the specific example, a step 69 is further formed at the inner circumferential edge of the first member 62 in the second outer member 56, and the step 69 of the first member 62 and the second member 64 in FIG. An annular receiving portion is defined by the left surface. On the other hand, the other end of the first outer member 54 is provided with an annular flange 120 that projects outward in the radial direction, and the annular flange 120 is rotatably received in the receiving portion of the second outer member 56. It is being With this structure, the second
axial relative movement of the shaft member 28 of the first outer member 54 with respect to the member 64 of the member 64 is restrained, thereby substantially creating a gap between the second member 64 and the first outer member 54. Thus, the coil spring means 18 described below
During expansion, a portion thereof is reliably prevented from entering between the second member 64 and the first outer member 54.

The first brake means 8 in the first electromagnetic clutch mechanism 2 will be explained mainly with reference to FIG. 4. The illustrated brake means 8 includes a first brake boss 122, a second brake boss 124, and a forward rotation brake. It includes a coil spring means 126 and a rotating sleeve 128 which act as a coil spring means 126 and a rotating sleeve 128.

The first brake boss 122 has a substantially cylindrical shape, and is provided with a small diameter portion 130 at one end (the right end in FIG. 4) that acts as a boss portion. Further, a sprocket 132 is integrally provided at the other end of the first brake boss 122. The first brake boss 122 is connected to the shaft member 2
It is attached so that it rotates with the sun. In a specific example, the small diameter portion 130 of the first brake boss 122 is provided with a through hole that penetrates in the radial direction, and a predetermined portion of the shaft member 28 is also provided with a through hole that communicates with the through hole, By press-fitting the pin member 134 into these through holes, the first brake boss 122 is attached to the shaft member 28 so as to rotate together with the shaft member 28.

The second brake boss 124 has a substantially cylindrical shape, and a mounting flange 136 is integrally provided at one end (the right end in FIG. 4). A plurality of holes are formed in the mounting flange 136 at intervals in the circumferential direction, and by screwing the mounting screws 138 into the support plate 26 through these holes, the second brake boss 124 acts as a stationary part. It is attached to a support plate 26. Therefore, this second brake boss 124 is not rotated, and the shaft member 2
8 are relatively rotated. The other part of the second brake boss 124 (the left part in FIG. 4) is provided with a small diameter part 140 that acts as a boss part. 1st brake boss 1
The small diameter portion 130 of the second brake boss 124 and the small diameter portion 140 of the second brake boss 124 extend in a direction toward each other, and both end surfaces thereof are in contact with or close to each other. The outer diameters of these small diameter portions 130 and 140 are substantially equal, and their outer peripheral surfaces are substantially continuous.

The braking coil spring means 126 is connected to the first brake boss 1
The small diameter portion 130 of the second brake boss 124 and the small diameter portion 140 of the second brake boss 124 are arranged so as to fit into the small diameter portion 130 of the second brake boss 124 and the small diameter portion 140 of the second brake boss 124.
It extends over 40.

Further, the rotating sleeve 128 is connected to the coil spring means 126.
The 0-rotation sleeve 128, which is fitted over the 0-rotation sleeve 128, is composed of a cylindrical sleeve member, and both ends of the 0-rotation sleeve 128 are connected to the shoulder part of the first brake boss 122 (located at the border with the small diameter part 130) and the Shoulder part of brake boss 124 (small diameter part 140
It is rotatably supported by the A claw portion 142 is integrally provided on the outer peripheral surface of the rotating sleeve 128 (see also FIG. 6).A notch 144 is further formed at the left end of the zero-rotating sleeve 128 in FIG. , the coil spring means 12 is inserted into the notch 144.
6 is locked at one end 146.

This braking coil spring means 126 extends from the one end 146 to the other end in the right direction (i.e.,
When the rotating sleeve 128 is in a freely rotatable state, the shaft member 2
8 is wound in a direction in which it contracts when rotated counterclockwise when viewed from the left side in FIG. In the illustrated example, the other end of the braking coil spring means 126 is simply fitted into the second brake boss 124;
The other end may be locked to the second boss 124.

With this configuration, the shaft member 28 can be rotated in the direction shown by the arrow 116 or 118 (FIGS. 1 and 3) while the rotation of the rotating sleeve 128 is restricted.
Alternatively, even if the shaft member 28 is rotated in the direction shown by the arrow 118 in a state where the rotation of the rotary sleeve 128 is not restrained, the braking coil spring means 126 will not be contracted, and the braking coil spring means 126 will not be compressed. The first brake boss 122 and the second brake boss 124 are not connected, and thus the first brake means 8 is maintained in a non-braking state. On the other hand, when the shaft member 28 is rotated in the direction shown by the arrow 116 in a state where the rotation of the rotary sleeve 128 is not restrained, the braking coil spring means 126 is caused to rotate slightly in the direction shown by the arrow 116. When contracted as required, the first brake boss 122 and the second brake boss 124 are drivingly connected via this coil spring means 126, and thus, since the second brake boss 124 does not rotate, the first brake means 8 is in a braking state, and the rotation of the shaft member 28 in the direction indicated by the arrow 116 is braked.

Next, the second electromagnetic clutch mechanism 4 will be explained with reference to FIG. 5 as well as FIG. 1. Note that members that are substantially the same as various constituent elements of the first electromagnetic clutch mechanism 2 will be described using the same numbers.

The clutch body 10 in the second electromagnetic clutch mechanism 4 has substantially the same configuration as the clutch body 6 in the first electromagnetic clutch a mechanism 2, and is a shaft member disposed at a predetermined distance from the shaft member 28. 150 (constituting the fourth rotating element) as required. The shaft member 150 is rotatably supported by the support plate 26 via a bearing member, and one end of the shaft member 150 extends to the left in FIG. It is attached in the same manner as the clutch body 6 of the mechanism 2. That is, the first inner member 32' is connected to the shaft member 150.
(in the specific example, it is supported via a sleeve 151), and this first inner member 32' has a sprocket 152 (constituting the third rotating element) and a first The outer member 54 is attached so as to rotate together. Further, the second inner member 34 is attached to the shaft member 150 via a pin member 52 so as to rotate together, and the second outer member 56 of the outer transmission means 16 is integrally attached to the second inner member 34. armature assembly 20.
is rotatably mounted, and the electromagnetic means 22 is also rotatably supported by the shaft member 150.

Compound of concrete examples! In the magnetic latch mechanism, the sprocket 152 constituting the third rotary element constitutes the input rotary element, and in connection with this, is further configured as follows. That is, an electric motor 154 constituting a drive source is attached to the support plate 24 by a support fitting 156. The output shaft 158 of the electric motor 154 is connected to the support plate 24
and the first inner member 32', and thus the sprocket 152, protrudes to the right in FIG.
are connected so that they rotate together.

That is, in the specific example, a key groove is formed in the protruding end of the output shaft 158 and the inner peripheral surface of the first inner member 32', and by fitting the key member 160 into the key groove, the two are drivingly connected. has been done. Further, a female threaded hole extending in the radial direction is formed in the first inner member 32', and a screw member 162 screwed into the female threaded hole acts on the output shaft 158, thereby drivingly connecting the two. With this configuration, when the electric motor 154 is energized, the sprocket 1526 is rotated as required together with the output shaft 158.

Further, the second brake means 12 which acts as a brake means for reverse braking in the second electromagnetic clutch mechanism 4 is
The structure is substantially the same as that of the first brake means 8 in the first electromagnetic clutch mechanism 2, except that the winding direction of the braking coil spring means 126' is opposite. That is, the second brake means 12 includes a first brake boss 122' that rotates together with the shaft member 150, a second brake boss 124 fixed to the support plate 26, a first brake boss 122', and a second brake boss 124 fixed to the support plate 26. A coil spring means (not shown) that is fitted over the second brake boss 124 and acts for reverse braking, and a rotary sleeve 128 that is fitted with the coil spring means and is rotatably disposed. There is. A braking coil spring means (not shown) in the second brake means 12 has one end locked in a notch (not shown) formed in the rotary sleeve 128, and extends from the one end to the other end in FIG. The shaft member 150 is wound in the left direction when viewed from the left side (that is, in a direction in which the shaft member 150 contracts when rotated clockwise when viewed from the left side in FIG. 1 while the rotary sleeve 128 is freely rotatable).

In the second braking means 12, the shaft member 1 is in a state where rotation of the rotary sleeve 128 is restricted.
50 is rotated in the direction shown by the arrow 164 or 16G (FIGS. 1 and 6), or the shaft member 150 is rotated in the direction shown by the arrow 16 when the rotation of the rotating sleeve 128 is not restrained.
Even if the braking coil spring means (not shown) is rotated in the direction shown by 6, the braking coil spring means (not shown) is not contracted, and the first brake boss 122' and the second brake boss 124 are connected through this coil spring means. Thus, the second braking means 12 is kept in a non-braking state. On the other hand, when the shaft member 150 is rotated in the direction shown by the arrow 164 in a state where the rotation of the rotating sleeve 12B is not restrained, the braking coil spring means is required due to the slight rotation in the direction shown by the arrow 164. The coil spring means compresses the first brake boss 122' and the second brake boss 124 in a driving connection, and since the second brake boss 124 does not rotate, the second brake means 12 is in a braking state, and rotation of the shaft member 150 in the direction shown by arrow 164 is braked.

The composite electromagnetic clutch mechanism of the specific example further includes an operation control means 168 for controlling the operation of the first brake means 8 and the second brake means 12. Mainly referring to FIG. 6, the illustrated operation control means 168 includes a rotation control means for preventing rotation of the rotary sleeve 128 of the first brake means 8 and the second brake means 12, and this rotation control means. It is equipped with actuating means for actuating. The illustrated rotational control means consists of a control member 170 which can be formed from a rectangular plate;
70 is the first braking means 8 and the second braking means 12
is placed between. In the specific example, the support plate 26
A pair of short shafts 175 and a summer 76 are installed in the shaft, and a small diameter mounting portion 17 is installed at the tips of these short shafts 175 and 176.
2 and 174 are provided. In addition, the control member 170
An elongated hole 171 is formed in the hole 171.
Small diameter mounting portions 172 and 17 for short shafts 175 and 176 within
4 is movably positioned. Short axis 175 and 1
A locking member (not shown) is further locked at the tip of 76 to prevent the control member 170 from coming off. Such a control member 170 has a hole 17, as can be seen from FIG.
The engagement position where one end of 1 abuts one short shaft 175 (sixth
(the position shown in the figure) and a detached position where the other end of the hole 171 abuts the other short shaft 176. Further, the actuating means shown in the figure is constituted by an electromagnetic solenoid 178.

A solenoid body 180 of the magnetic solenoid 178 is mounted on the support plate 26, and its output rod 182 is connected to one end of the control member 170 via a pin 184. Further, a coil spring 186 is interposed between the solenoid main body 180 and the pin 184, with an output rod 182 fitted therein. The coil spring 186 resiliently biases the control member 170 toward the disengaged position.

With this configuration, when the electromagnetic solenoid 178 is deenergized, the control member 170 is connected to the coil spring 18.
6, it is held at the detached position. In this disengaged position, the engaging corners 170a and 170b of the control member 170 engage the pawl 142 of the rotary sleeve 128 of the first braking means 8 and the second braking means 12, respectively.
separated from the claw portion 142 of the rotating sleeve 128 in
Rotation of the re-rotation sleeve 128 is thus permitted. On the other hand, when the electromagnetic solenoid 178 is energized, the control member 1
70 moves in the direction shown by arrow 188 against the action of coil spring 186 and is positioned at the engagement position. In such an engagement position, the engagement corner 170 of the control member 170
a and 170b are the claw portions 1 of the rotating sleeve 128 in the first brake means 8 and the second brake means 12, respectively.
42, and thus the action of the engagement corner 170a prevents rotation of the rotary sleeve 128 in the first braking means 8 in the direction indicated by the arrow 118, and the action of the other engagement corner 170b prevents the rotation of the rotary sleeve 128 in the direction indicated by the arrow 118. 2 braking means 12
The rotating sleeve 128 is prevented from rotating in the direction shown by the arrow 142.

In the specific example, in order to simplify the configuration, the rotary sleeves 128 of the first brake means 8 and the second brake means 12 are connected to a common operation control means 168 (single control member 1
70 and a single electromagnetic solenoid), but instead of this, the rotating sleeve 128 of the first braking means 8 and the rotating sleeve 12 of the second braking means 12
8 may be operated and controlled by dedicated operation control means, respectively.

Referring again to FIG. 1, the first electromagnetic clutch mechanism 2 and the second electromagnetic clutch mechanism 4 are drivingly connected as follows. That is, the sprocket 30 constituting the first rotating element
and a sprocket 152 constituting the third rotating element are drivingly connected via a transmission member 190 such as a chain. In the specific example, the number of teeth of the sprocket 152 is set to be larger than the number of teeth of the sprocket 30, so when the rotational force of the sprocket 152 is transmitted to the sprocket 30 via the transmission member 190, the rotational speed is increased. . Also, a sprocket 132 rotates together with the shaft member 28 that constitutes the second rotating element, and a sprocket 13 that rotates integrally with the shaft member 150 that constitutes the fourth rotating element.
2' are drivingly connected via a transmission member 192 such as a chain.

In the specific example, the number of teeth of the sprocket 132' is set smaller than the number of teeth of the sprocket 132, so when the rotational force of the sprocket 132' is transmitted to the sprocket 132 via the transmission member 192, the rotational speed is reduced. be done.

In such a composite electromagnetic clutch mechanism, Fig. 1...
As can be understood, the shaft member 28 constituting the second rotating element
constitutes an output rotating element, and this shaft member 2B protrudes through the support plate 26, and its protruding end is rotatably supported by the support portion 194. A pair of output sprockets 196 and 19B are further attached to the protruding end portion of the shaft member 28 (that is, the area between the support plate 26 and the support portion 194), and these output sprockets 196 and 198 are connected to chains 200 and 202, etc. is drivingly connected to actuated means (not shown) via. Therefore, when the shaft member 28 is rotated as described below, the rotational force is applied to the output blocks 196 and 198 and the chains 200 and 202.
to the actuated means as required.

The composite electromagnetic clutch mechanism as described above can be advantageously used, for example, in a drive system in a vending machine for milk, beer, etc.

The effects of the above-described composite electromagnetic clutch mechanism are as follows.

In this composite electromagnetic clutch mechanism, when either the electromagnetic means 22 of the first electromagnetic clutch mechanism 2 or the electromagnetic means 22 of the second electromagnetic clutch mechanism 4 is energized, the electromagnetic solenoid 17B in the operation control means 168 is also activated. energized, while the first! When the electromagnetic means 22 of both the magnetic latch mechanism 2 and the second electromagnetic clutch mechanism 4 are deenergized, the electromagnetic solenoid 178 is also deenergized.

of the first electromagnetic clutch mechanism 2! When the magnetic means 22 and the electromagnetic means 22 of the second electromagnetic clutch mechanism 4 are deenergized, the rotational force of the sprocket l-152 that constitutes the input rotating element is transmitted to the shaft member 28 that constitutes the output rotating element. Never. That is, when the electric motor 154 is energized and rotated in a predetermined direction (or in the opposite direction to the predetermined direction) while both electromagnetic means 22 are deenergized, the action of the electric motor 154 causes the sprocket 152 to move in a predetermined direction. direction (or the opposite direction to the predetermined direction), and as the sprocket 152 rotates, the sprocket 30 also rotates in the direction of the arrow 116 (or 118) (third direction) via the transmission member 190.
(Fig.) is rotated in a predetermined direction (or in a direction opposite to the predetermined direction). When the sprocket 152 is thus rotated, the fifth
As can be seen from the figures, the first inner member 32', the first outer member 54, the coil spring means 18 and the armature assembly (not shown) are also rotated together with the sprocket 152. Substantially no difference in rotational speed in the retraction (or expansion) direction is created between one end and the other, and this coil spring means 18 is never retracted (or expanded), so that no rotation from the sprocket 152 is generated. Power is not transmitted to the shaft member 150 through either the inner transmission means 14 or the outer transmission means 16, and the shaft member 28 is not rotated through this second electromagnetic clutch mechanism 4. Also, as the sprocket 30 is thus rotated, the first inner member 32, the first outer member 54, the coil spring means 18 and the armature assembly 20 are integrally connected to the sprocket 30, as can be seen from FIG. is also rotated so that substantially no rotational speed difference in the contraction direction (or expansion direction) is created between the one end 108 and the other end 112 of the coil spring means 18;
The coil spring means 1B is never contracted (or expanded), so also in the first 1i magnetic clutch structure 2,
The rotational force from the sprocket 30 is not transmitted to the shaft member 2B via either the inner transmission means 14 or the outer transmission means 16, and the shaft member 28 is not rotated.

When both electromagnetic means 22 are deenergized, the electromagnetic solenoid 178 in the actuation control means 168 is also deenergized;
Both the first braking means 8 and the second braking means 12 are held in a braking state.

1 and 4, at this time, the control means 170 in the actuation control means 168 is held in the disengaged position by the action of the coil spring 186, and the engagement corner 17
0a and 170b are disengaged from the pawls 142 of the rotary sleeves 128 of the first braking means 8 and the second braking means 12 (the rotational control means being held in the inoperative state), and thus the first braking means 8 and the second braking means 12 2 braking means 1
Two rotational sleeves 128 are allowed to rotate. In this state, the external load causes the shaft member 2 to move toward the arrow 116.
When the shaft member 28 is slightly rotated in the direction shown in FIGS. 1 and 6, the rotational force of the shaft member 28 is transmitted to the first brake boss 122 of the first brake means 8 (this rotational force is Further, the transmission is also transmitted to the shaft member 150 via the sprocket 132, the transmission member 192, the sprocket 132', and the first brake boss 122' in the second brake means 12), and the outer peripheral surface of the first brake boss 122. The braking coil spring means 126 is contracted by the frictional force between the inner peripheral surfaces of the braking coil spring means 126. Thus, the first brake boss 122 and the second brake boss 1
24 are connected via coil spring means 126, and since the second brake boss 124 is fixed to the support plate 26 and cannot rotate, the first brake boss 122, and therefore the shaft member 28, in the direction indicated by the arrow 116. The rotation of is braked,
In this way, rotation of the shaft member 28 in the direction indicated by the arrow 116 due to the external load is reliably prevented.6 Also, in the above-mentioned state, the shaft member 28 is prevented from rotating in the direction indicated by the arrow 118 (FIGS. 1 and 6) due to the external load. When the shaft member 28 is slightly rotated in the direction, the rotation force of the shaft member 28 is applied to the sprocket 132 and the transmission member 1.
92 and the sprocket l-132' to the first brake boss 122' in the second brake means 12 (this turning force is transmitted to the first brake boss 122' in the first brake means 8).
), the outer peripheral surface of the first brake boss 122' and the braking coil spring means 126
The braking coil spring means 126 is contracted by the frictional force between the inner circumferential surfaces of the brake coil spring means 126.

In this way, the first brake boss 122' and the second brake boss 124 are connected via the coil spring means 126, and since the second brake boss 124 is fixed to the support plate 26 and cannot rotate, 1 brake boss 12
2' in the direction indicated by the arrow 164 (FIG. 6), and thus the shaft member drivingly connected via the transmission member 192, the subrocket 132 and the first brake boss 122 of the first brake means 8. 28 in the direction indicated by the arrow 118 is braked, and thus the rotation of the shaft member 28 due to the external load is braked.
Rotation in the direction shown by arrow 118 is also reliably prevented.

When the 'rl magnetic means 22 of the first electromagnetic clutch mechanism 2 is energized while the electric motor 154 is energized and rotating in a predetermined direction, the rotational force of the sprocket 152 becomes transmitted to member 28. Figures 1 and 2
Referring to the figure, when electric motor 154 rotates in a predetermined direction, this rotational force is applied to sprocket 152 and transmission member 19.
0 to the sprocket 30, which is rotated in the direction shown by the arrow 116 (FIGS. 1 and 6). When the electromagnetic means 22 of the first electromagnetic clutch mechanism 2 is energized in such a state, the action of the electromagnetic means 22 causes the armature 82 to move to the right in FIG. 2 against the biasing action of the biasing spring member 84. moved toward the end wall 72 of the third member 66 functioning as a rotor;
The armature 82 is magnetically attracted or attracted to the inner surface of the end wall 72 (the armature 82 does not necessarily have to be attracted to the end wall 72, and as will be described later, the armature 82 is connected to the sprocket 30, one end 108 of the coupling coil spring means 18, and the armature assembly). 2
0, so it is sufficient that a relative rotational difference is created between the other ends 112 of the coil spring means 18). As a result, the armature 82 and the end wall 72 of the third member 66 are connected, and a force that prevents the armature assembly 20 from rotating acts on the armature assembly 20, and this rotation blocking force causes the sprocket 3 to
0, thus one end 108 of the coil spring means 18 and the armature assembly 20, thus the other end 112 of the coil spring means 18.
A rotation speed difference in a direction that causes the coil spring means 18 to contract is generated between the two, and the coil spring means 18 is contracted as required by this rotation speed difference. When contracted in this manner, the inner circumferential surface of the coil spring means 18 is compressed by the inner circumferential surface of the first inner member 32 (especially the part that acts as a boss part) and the second inner member 34 (particularly the part that acts as a boss part) in the inner transmission means 14. Acting on the outer peripheral surface, the first inner member 32
and second inner member 34 are drivingly connected via coil spring means 18 . Thus, the rotational force from the sprocket 152 is transmitted to the transmission member 190, the sprocket 30, and the first sprocket.
It is transmitted to the shaft member 28 via the first inner member 32, the coil spring means 18, and the second inner member 34 in the electromagnetic clutch mechanism 2, and this shaft member 28 is also rotated in the direction shown by the arrow 116. At this time, in the second electromagnetic clutch mechanism 4, as understood from FIG. 5, since the sprocket 152 is rotated in the direction shown by the arrow 166 (FIGS. 1 and 6), this sprocket 152, the first inner member 32', first outer member 54, coil spring means 18 and armature assembly (not shown) are also rotated. Moreover, since the shaft member 28 is rotated in the direction shown by the arrow 116, this rotational force causes the shaft member to
50 is also rotated in the direction shown by arrow 166 (FIG. 6), and integrally with this shaft member 150, the second inner member 34 and the second
The outer member 16 of is also rotated.

When the electromagnetic means 22 in the first electromagnetic clutch mechanism 2 is deenergized in the above-described connected state, the biasing spring member 84
The armature 82 is moved leftward in FIG. 2 by the action of the armature 82 and the end wall 72 of the third member 66.
The above connection state of is released. As a result, the armature assembly 20 is relatively rotated slightly in the direction indicated by the arrow 118 due to the elastic force of the coil spring means 18 stored during the above-described drive transmission, and the coil spring means 18 is expanded as required. This expansion releases the driving connection between the first inner member 32 and the second inner member 34 by the coil spring means 18, thus stopping rotation of the shaft member 28 in the direction indicated by the arrow 116.

Further, when the electromagnetic means 22 of the first electromagnetic clutch mechanism 2 is similarly energized while the electric motor 154 is energized and rotating in the opposite direction to the predetermined direction, the shaft member 28 is 1 and 6). Ei, when the electric motor 154 rotates in the opposite direction to the predetermined direction, this rotational force is transmitted to the sprocket 30 via the sprocket 152 and the transmission member 190, and the sprocket 30 is rotated in the direction shown by the arrow 118.

When the electromagnetic means 22 of the first electromagnetic clutch mechanism 2 is energized in such a state, the armature 82 is magnetically attracted to the end wall 72 of the third member 66 by the action of the electromagnetic means 22 in the same manner as described above. Ru. Thus, amateur 8
The end walls 72 of the second and third members 66 are connected, and a force is applied to the armature assembly 20 to prevent its rotation.
Due to the rotation of the sprocket 30 in the direction indicated by the arrow 118, this rotation blocking force causes the sprocket 30, and therefore the one end 108 of the coil spring means 18, the armature assembly 20, and therefore the i-end of the coil spring means 18 11
2, a rotational speed difference in a direction that causes the coil spring means 18 to expand is generated, and this rotational speed difference causes the coil spring means 18 to expand as required. When expanded in this manner, the outer circumferential surface of the coil spring means 18 is connected to the outer transmission means 16.
The first outer member 54 and the second outer member 56 (
In particular, it acts on the inner peripheral surface of the second member 64 ), and the first outer member 54 and the second outer member 54 are drivingly connected via the coil spring means 18 . Thus, the rotational force from the sprocket 152 is transmitted to the transmission member 190, the sprocket 30, and the first inner member 3 of the first electromagnetic clutch mechanism 2.
2, the first outer member 54, the coil spring means 18, the second outer member 56 (particularly the second member 64 and the third member 66).
) and the second inner member 34 to the shaft member 28, and this shaft member 28 is also rotated in the direction shown by the arrow 118. At this time, in the second electromagnetic clutch mechanism 4, as understood from FIG. 5, since the sprocket 152 is rotated in the direction shown by the arrow 164 (FIGS. 1 and 6), the sprocket 152 integrally with the first inner member 3
2', the first outer member 54, the coil spring means 18 and the armature assembly (not shown) are also rotated. Furthermore, since the shaft member 28 is rotated in the direction indicated by the arrow 118, the shaft member 150 is also rotated in the direction indicated by the arrow 118 through the sprocket 132, the transmission member 192, and the sprocket 132'.
4 (Fig. 6), and this shaft member 15
0 integrally with the second inner member 34 and the second outer member 16
is also rotated.

When the shaft member 28 is rotating in the direction shown by the arrow 118, the electromagnetic means 22 of the first electromagnetic clutch mechanism 2
When the biasing spring member 84 is deenergized, as described above, the biasing spring member 84
The armature 82 is moved leftward in FIG. 2 by the action of the armature 82 and the end wall 72 of the third member 66.
The above connection state of is released. In this way, the armature assembly 20 is relatively rotated slightly in the direction shown by the arrow 116 due to the elastic force of the coil spring means 18 stored during the above-described drive transmission, and the coil spring means 18 is contracted as required. This contraction releases the driving connection between the first outer member 54 and the second outer member 56 by the coil spring means 18, thus stopping rotation of the shaft member 28 in the direction indicated by arrow 118.

The case where the electromagnetic means 22 of the first electromagnetic clutch mechanism 2 is energized has been described above, but the case where the electromagnetic means 22 of the second electromagnetic clutch mechanism 4 is energized is substantially the same as described above. Then, sprocket 152 and shaft member 150 are drivingly connected as required. To summarize with reference to FIGS. 1 and 4, sprocket i52 is located at arrow 166 (6th
When the electromagnetic means 22 of the second electromagnetic clutch mechanism 4 is energized while rotating in the direction shown in FIG. This creates a rotational speed difference between the sprocket 152 and the armature assembly (not shown) in a direction that causes the coil spring means 18 to contract, and the coil spring means 18 is contracted by the rotational speed difference. When contracted in this manner, the first inner member 32' and the second inner member 34 are drivingly connected via the coil spring means 18, and the rotational force from the sprocket 152 is applied to the first inner member 32' and the coil spring means 18.
and is transmitted to the shaft member 150 via the second inner member 34, and further transmitted to the shaft member 28 via the sprocket 132' transmission member 192 and the sprocket 132, and this shaft member 28 is connected to the arrow 116 (FIG. 6). It is rotated in the direction shown. Also, the sprocket 152 is connected to the arrow 164 (first
When the electromagnetic means 22 of the second electromagnetic clutch mechanism 4 is energized while rotating in the direction shown in FIGS. A rotational speed difference is generated between the sprocket 152 and the armature assembly (not shown) in a direction that causes the coil spring means 18 to expand, and this rotational speed difference causes the coil spring means 18 to expand. . Upon such expansion, the first outer member 54 and the second outer member 56 are drivingly connected via the coil spring means 18 and the sprocket 152
The rotational force from is transmitted to the shaft member 150 via the first inner member 32', the first outer member 54, the coil spring means 18, the second outer member 56, and the second inner member 34,
It is further transmitted to the shaft member 28 via the sprocket 132' transmission member 192 and the sprocket 132, and the shaft member 28 is rotated in the direction shown by the arrow 118 (FIGS. 1 and 6).

In a specific example, the number of teeth on sprocket 152 is greater than the number of teeth on sprocket 30, and the number of teeth on sprocket 132' is greater than the number of teeth on sprocket 132, as shown in FIG. Therefore, the first electromagnetic clutch machine tI2! When the magnetic means 22 is energized, the driving force is transmitted to the shaft member 28 via the sprocket 152, the transmission member 190 and the sprocket 30, and the shaft member 28 is rotated at a relatively high speed. On the other hand, when the electromagnetic means 22 of the second electromagnetic clutch mechanism 4 is energized, the driving force is applied to the sprocket 1.
32', is transmitted to the shaft member 28 via the transmission member 192 and the sprocket 132, and the shaft member 28 is rotated at a relatively low speed.

When the M1 means 22 in the first electromagnetic clutch mechanism 2 or the electromagnetic means 22 in the second electromagnetic clutch mechanism 4 is energized, the electromagnetic solenoid 178 of the operation control means 168 is also energized at the same time. Thus, as shown in FIG. 6, the control member 170 is moved in the direction indicated by arrow 188 against the biasing force of the coil spring 186, and is positioned in the engaged position shown in FIG. When thus positioned in the engaged position, the engagement corners 170a and 170b of the control member 170 each engage the first
The claw portion 1 of the rotating sleeve 12B in the brake means 8 of
42 and the claw portion 142 of the rotary sleeve 128 in the second brake means 12, and the rotation of the rotary sleeve 128 in the direction shown by the arrow 116 in the first brake means 8 is reliably prevented. The brake means 12 reliably prevents rotation of the rotating sleeve 128 in the direction indicated by the arrow 164. Therefore, the braking coil springs 12 of the first braking means 8 and the second braking means 12
6 (only one of which is shown in FIG. 4) is not substantially retracted, and the first braking means 8 and the second braking means 12 are maintained in a non-braking state.

In the specific example, the output shaft 158 of the electric motor 154 is drivingly connected to the sprocket 152, but it may be drivingly connected to the sprocket 30 instead. Also, output sprockets 196 and 198 are attached to the shaft member 28. However, instead of this, these may be attached to the shaft member 150.

As described above, the first electromagnetic clutch 8 including the clutch body 6 and the first brake means 8! Although the composite electromagnetic clutch mechanism consisting of the second electromagnetic clutch mechanism 4 including the oval 2, the clutch body 10, and the second brake means 12 has been described, the clutch body 4 in such a composite electromagnetic clutch mechanism
(or 6) The first brake means 8 and the second brake means IO can be combined and used as an electromagnetic clutch mechanism. Further, the first brake means 8 and the second brake means 12 can be used alone or in combination as a brake device that brakes the rotation of the rotating element.

Although the embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to this specific example, and various modifications and changes can be made without departing from the scope of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view showing an example of a combined electromagnetic clutch mechanism according to the present invention. Figure 2 shows the first clutch in the composite electromagnetic clutch mechanism shown in Figure 1.
FIG. 3 is a sectional view showing the clutch body of the electromagnetic clutch mechanism. 3 is an exploded perspective view showing the clutch body of FIG. 2; FIG. Figure 4 shows the first clutch in the composite electromagnetic clutch mechanism shown in Figure 1.
FIG. 3 is a cross-sectional view showing the first brake means of the electromagnetic clutch mechanism. FIG. 5 is a partially cutaway sectional view showing the clutch body of the second electromagnetic clutch mechanism in the composite electromagnetic clutch Ja barrel of FIG. 1. FIG. 6 schematically shows the engagement relationship between the rotating sleeve and the control member of the actuation control means in the first brake means and the second brake means, and shows Vl - Vl & in FIG. 1.
Cross-sectional view seen from %. 2...First electromagnetic clutch mechanism 4...Second electromagnetic clutch mechanism 6...Clutch body 8...First brake means 10...Clutch body 12...Second brake means 168...Operation control means 170...Control member 178...Electromagnetic solenoid

Claims (1)

[Scope of Claims] 1. In an electromagnetic clutch mechanism that selectively transmits the rotational driving force of an input rotational element to an output rotational element, a clutch body that releasably drives and connects the input rotational element and the output rotational element; A brake means for braking forward rotation for braking the forward rotation of the output rotation element, a brake means for braking reverse rotation for braking the reverse rotation of the output rotation element, a brake means for braking the forward rotation and the brake means for braking the reverse rotation. The brake means includes an operation control means for controlling the operation of the brake means, and the forward rotation braking means includes a first brake boss that rotates together with the output rotation element, and a second brake boss that is fixed to a stationary part.
a brake boss, a coil spring means for normal rotation braking fitted across the first brake boss and the second brake boss, and a coil spring means for normal rotation braking fitted over the first brake boss and the second brake boss. and a rotating sleeve to which one end is locked, and the brake means for reverse braking includes a first brake boss that rotates together with the output rotating element, and a second brake boss that is fixed to a stationary part.
a brake boss, a coil spring means for reverse braking fitted across the first brake boss and the second brake boss, and a coil spring means disposed to fit over the coil spring means for reverse rotation braking, the coil spring means being fitted over the first brake boss and the second brake boss; and a rotating sleeve that is locked at one end, and the operation control means controls the operating state of the forward rotation braking means and the reverse rotation braking means to prevent rotation of the rotating sleeve. It has a rotation control means that is selectively brought into a non-operating state that allows rotation of the rotary sleeve, and when the clutch body is in a connected state drivingly connecting the input rotary element and the output rotary element. The rotation control means is maintained in the operative state, thereby preventing the contraction of the forward rotation braking coil spring means and the reverse rotation braking coil spring means, thus causing the output rotation element to have the forward rotation braking coil spring means and the reverse rotation braking coil spring means. When the brake means for reverse braking does not act, and on the other hand, the clutch means is brought into a released state in which the driving connection between the input rotational element and the output rotational element is released,
When the rotation control means is held in the non-operating state and the output rotation element is relatively rotated in the normal rotation direction in this state, the normal rotation braking coil spring means is contracted and the normal rotation braking coil spring means is compressed. The first brake boss and the second brake boss in the brake means are drivingly connected, and when the output rotating element is relatively rotated in the reverse direction, the reverse rotation braking coil spring means is contracted. The first brake boss and the second brake boss in the brake means for reverse braking are drivingly connected, and thus the forward rotation direction of the output rotation element is controlled by the action of the brake means for forward rotation braking and the brake means for reverse rotation braking. and an electromagnetic clutch mechanism characterized in that rotation in the reverse direction is prevented. 2. A claw portion is provided on the outer peripheral surface of the rotating sleeve in the forward rotation braking brake means and the reverse rotation braking brake means, and the rotation control means is at an engagement position where it engages with the claw portion of these rotating sleeves. and a control member mounted so as to be movable between a detachment position in which the rotary sleeve is detached from the claw portion, and the actuation control means further includes an actuation means for moving the control member; When the clutch body is in the connected state, the actuating means is energized, thereby holding the control member in the engaged position, and thus the normal rotation braking means and Rotation of the rotary sleeve in the reverse braking means is prevented, while when the clutch body is brought into the released state, the actuating means is deenergized, thereby positioning the control member in the disengaged position, thus 2. The electromagnetic clutch mechanism according to claim 1, wherein the control member and the claw are disengaged, and rotation of the rotating sleeve in the forward braking brake means and the reverse braking brake means is permitted. 3. The clutch body includes an inner transmission means and an outer transmission means interposed between the input rotation element and the output rotation element, and a coupling coil spring disposed between the inner transmission means and the outer transmission means. and electromagnetic means for creating a relative rotational difference between one end and the other end of the coupling coil spring means, the inner transmission means comprising a first rotary element rotating integrally with the input rotational element.
and a second inner member that rotates together with the output rotational element, and the outer transmission means has a first inner member that rotates together with the input rotational element.
and a second outer member that rotates together with the output rotating element, and the coupling coil spring means has an outer member that rotates together with the first inner member and the second outer member.
The input rotating element extends in a predetermined direction, and extends on the outside of the inner member of the first outer member and extends over both of the inner members, and extends on the inner side of the first outer member and the second outer member, and extends over both of the inner members. When the electromagnetic means is energized while rotating, a relative rotational difference in the direction of contraction is created between the one end and the other end of the coupling coil spring means, thereby causing the first inner The member and the second inner member are drivingly connected via the coupling coil spring means, while energizing the electromagnetic means when the input rotating element is rotating in a direction opposite to the predetermined direction causes the electromagnetic means to A relative rotational difference in the expansion direction is created between the one end and the other end of the coupling coil spring means, whereby the first outer member and the second outer member are rotated through the coupling coil spring means. The electromagnetic clutch mechanism according to claim 1 or 2, wherein the electromagnetic clutch mechanism is driven and connected. 4. a first electromagnetic clutch mechanism for selectively transmitting the rotational driving force of the first rotating element to the second rotating element;
a second electromagnetic clutch mechanism for selectively transmitting the rotational driving force of the rotating element to the fourth rotating element, and the first electromagnetic clutch mechanism connects the first rotating element and the second rotating element.
a clutch body that releasably drives and connects the rotating elements of the
A first brake means for controlling rotation of the second rotating element is provided, the first brake means includes a first brake boss that rotates together with the second rotating element, and a stationary part. a second brake boss fixed to the brake boss, a braking coil spring means fitted over the first brake boss and the second brake boss, and a braking coil spring means fitted over the first brake boss and the second brake boss; The second electromagnetic clutch mechanism includes a clutch body that releasably drives and connects the third rotating element and the fourth rotating element; A second brake means for braking rotation of the fourth rotating element is provided, and the second brake means includes a first brake boss that rotates together with the fourth rotating element, and a stationary part. a second brake boss fixed to the first brake boss;
a braking coil spring means fitted across the brake boss and the second brake boss; and a rotary sleeve disposed over the braking coil spring means and having one end locked. Further, an operation control means for controlling the operation of the first brake means and the second brake means is disposed between the first brake means and the second brake means,
The operation control means selectively operates between an operating state in which it acts on the rotary sleeves of the first brake means and the second brake means to prevent their rotation, and an inoperative state in which it does not act on the rotary sleeves. the first rotational element and the third rotational element are drivingly connected, and the second rotational element and the fourth rotational element are drivingly connected; Either the first rotating element or the third rotating element constitutes an input rotating element, and either the second rotating element or the fourth rotating element constitutes an output rotating element. , when either one of the clutch bodies of the first electromagnetic clutch mechanism and the second electromagnetic clutch mechanism is in the drive connected state, the rotation control means is maintained in the operating state, thereby causing the first electromagnetic clutch mechanism to Contraction of the braking coil spring means in the braking means and the second braking means is prevented, thus allowing the output rotary element to rotate as desired, while the first electromagnetic clutch mechanism and the second electromagnetic clutch When both of the clutch bodies in the mechanism are in the deactivated state, the rotation control means is brought into the inactive state, and when the output rotational element is relatively rotated in a predetermined direction in this state, the first The braking coil spring means of the brake means is contracted to drively connect the first brake boss and the second brake boss of the first brake means, and the output rotating element is rotated in a direction opposite to the predetermined direction. When the braking coil spring means of the second brake means is compressed, the first brake boss and the second brake boss of the second brake means are drivingly connected. Thus, the rotation of the output rotating element in a predetermined direction and in a direction opposite to the predetermined direction is prevented by the action of the first brake means and the second brake means.
A composite electromagnetic clutch mechanism characterized by: 5. A first brake boss that rotates together with the rotating element;
a second brake boss fixed to a stationary part; a braking coil spring means fitted across the first brake boss and the second brake boss; and a braking coil spring means fitted over the first brake boss and the second brake boss. a rotating sleeve that is disposed and partially locked; and a rotation control that selectively causes the rotating sleeve to be in an active state that prevents rotation and a non-active state that allows the rotating sleeve to rotate. means, when the rotation control means is in the operative state, rotation of the rotation sleeve is prevented, thereby preventing contraction of the braking coil spring means, thus allowing rotation of the rotation element. On the other hand, when the rotation control means is brought into the inactive state, rotation of the rotation sleeve is permitted, and when the rotation element is relatively rotated in a predetermined direction in this state, the braking coil spring means is activated. When contracted, the first brake boss and the second brake boss are drivingly connected via the braking coil spring means, thus preventing rotation of the rotating element in the predetermined direction. brake equipment. 6. A brake device for braking rotation of a rotating element in a predetermined direction and a direction opposite to the predetermined direction, a first braking means for braking rotation of the rotating element in the predetermined direction;
A second brake means for braking rotation of the rotary element in a direction opposite to the predetermined direction, and an operation control means for controlling the operation of the first brake means and the second brake means. , the first brake means and the second brake means respectively include a first brake boss that rotates together with the rotating element, a second brake boss that is fixed to a stationary part, and a second brake boss that rotates integrally with the rotating element. A braking coil spring means fitted over the brake boss and the second brake boss, and a rotary sleeve disposed over the braking coil spring means and having one end locked. The operation control means selectively sets the first braking means and the second braking means to an operating state that prevents rotation of the rotary sleeves and a non-operating state that allows rotation of these rotary sleeves. and rotation control means adapted to actuate the rotation control means, and when the rotation control means is in the operating state, contraction of the braking coil spring means in the first brake means and the second brake means is prevented, thus The first braking means and the second braking means do not act on the rotating element, while the rotational control means is in the non-acting state. The braking coil spring means is allowed to contract, and when the rotary element is relatively rotated in the predetermined direction in this state, the braking coil spring means of the first brake means is contracted and the braking coil spring means is compressed. When the first brake boss and the second brake boss in the first brake means are drivingly connected, and the rotary element is relatively rotated in a direction opposite to the predetermined direction, the second brake boss The braking coil spring means in is contracted to drivingly connect the first brake boss and the second brake boss in the second brake means, thus causing the rotational element to move in the predetermined direction and opposite to the predetermined direction. rotation in the direction is prevented by the action of the first braking means and the second braking means;
A brake device characterized by: 7. The rotating sleeve of the first braking means and the rotating sleeve of the second braking means are spaced apart from each other, and claw portions are provided on the outer peripheral surfaces of these rotating sleeves, The control means is disposed between the rotary sleeves of the first brake means and the second brake means, and is arranged between an engagement position in which it engages with the claws of these rotary sleeves and a disengagement position from the claws of these rotary sleeves. a control member mounted so as to be movable between disengaged positions, and when the control member is in the engaged position, rotation of the rotary sleeve in the first brake means and the second brake means is controlled; is prevented from contracting the braking coil spring means in the first braking means and the second braking means, while the first braking means and the braking coil spring means are prevented from collapsing when the control member is in the disengaged position. 7. The brake according to claim 6, wherein rotation of the rotary sleeve in the second brake means is permitted, thereby allowing contraction of the braking coil spring means in the first brake means and the second brake means. Device.