JP2000036186A - Electric equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable fully automatically opening and closing a rotatable front rotary plate. SOLUTION: A first terminal section 11 of a lever 10 supported so as to be able to rotate centered on a first axis line 7 is coupled to a rotary joint positioned at the front side of a casing frame 1, also a second terminal section 12 of the lever 10 is coupled to an adjusting device arranged at a casing frame and being adjustable by a driving motor, the lever 10 can be rotated centered on the first axis line 7 by the adjusting device, one gear 15 is supported rotatably by the lever 10 between the first terminal section 11 of the lever 10 and the second terminal section 12, this gear 15 is rotated centered on a second axis line 16 being parallel with the first axis line 7. And a first gear segment 9 with an internal gear being concentric with the first axis line 7 is arranged at the casing frame, and a second gear segment 24 with an external gear being concentric with the first axis line 7 is fixed at the inside of the front rotary plate 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device of the type having a casing frame having a front side covered by a front swivel plate which is pivotally supported on a first axis in a front side region of the casing frame. About.

[0002]

2. Description of the Related Art Electrical equipment with a built-in playback unit for record carriers, such as on-board radio equipment incorporating a cassette recorder or CD player, or navigation equipment with a CD-ROM operating mechanism, are already known. On the front side, the electrical device can have an opening for accommodating a record carrier such as a cassette or a CD, for example, and can be equipped with a swivelable front swiveling plate for covering the opening. This swivelable front swivel plate has a large number of operating elements and, for example, a large number of operating elements on the front side of the front swivel plate facing the observer, particularly in a small and compact automobile-mounted radio device incorporating a cassette unit or a CD unit. A display device such as a liquid crystal display element can be housed. In the case of the known electrical equipment, the front swivel plate is pivoted to the open state by actuation of the corresponding key by the tension of a spring, but must be closed manually.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to open and close a pivotable front swivel plate in a fully automatic manner.

[0004]

According to another aspect of the present invention, at least one lever is provided which is pivotally supported about a first axis. An end section is connected to a rotary joint positioned in the front side area of the casing frame, and a second end section of the lever is arranged on the casing frame and is actuated by an adjusting device which can be adjusted by a drive motor. And the lever is moved by the adjusting device within a predetermined angle range.
The lever is rotatable about an axis, and a gear is rotatably mounted on the lever between a first terminal section and a second terminal section of the lever, and the gear rotates with respect to the first axis. A first gear segment with internal teeth extending concentrically with respect to the first axis in a region on the front side of the casing frame, the first gear segment being rotatable about a second axis parallel to the casing frame; A tooth row of the first gear segment is oriented toward the first axis, and a second face with external teeth extending concentrically with respect to the first axis is provided on an inner surface side of the front revolving plate. The gear segment is fixed, the teeth of the second gear segment are oriented in the direction away from the first axis, and the gear supported by the lever meshes with the first gear segment. 2nd gear seg Both cement meshes, the gear rolls meshed with the first gear segment stationary during pivoting of the lever about the said first axis, at the same time,
The second gear segment fixed to the front revolving plate is rotated about the first axis, and thus the front revolving plate is revolved about the first axis.

[0005]

According to the invention, automatic closing of the front swivel plate after a defined waiting time is achieved for safety reasons. The special configuration of the swivel mechanism does not undesirably change the appearance of the electrical device. The swivel mechanism saves space required for the electric device by its compact and compact structure, and at the same time enables reliable driving of the front swivel plate when opening and closing. The gears arranged on the lever are engaged with the first gear segment arranged on the casing frame and the second gear segment arranged on the front turning plate, so that the front turning can be performed even if the turning angle of the lever is smaller than 90 °. Pivoting the plate by more than 90 ° is advantageously achieved. The dependent relationship between the pivot angle of the front pivot plate and the pivot angle of the lever can be easily determined by the gear ratio of the gear transmission consisting of the gears and the two gear segments.

Advantageous configurations and improvements of the present invention are described in claim 2
This is made possible by the configuration means described below. By combining the lever with the crank transmission, it is achieved that the turning speed of the front swivel plate is advantageously gradually reduced shortly before each end position of the front swivel plate during opening and closing. By this means, the electric and electronic elements provided inside the front swivel plate and, in some cases, the liquid crystal display elements provided along the front swivel plate are protected. Furthermore, the above-mentioned means avoids the contact noise of the front swivel plate when contacting the casing frame of the electric equipment.
At each end position of the front swivel plate at the time of opening and closing, the front swivel plate is supported by the casing frame, so that an externally applied force is not transmitted to the adjusting device and the drive motor.

The crank arm is connected to the lever via a slide guide specifically provided at the second end of the lever and a crank pin of the crank arm slidably supported in engagement with the slide guide. By virtue of the connection, the use of the longest lever arm is advantageously achieved even with the minimum operating force of the crank. Thereby, the turning motion of the front turning plate is performed particularly uniformly.

Further, an adjusting device connected to the crank has a drive gear with external teeth driven by a drive motor via a worm gear to drive the crank, the drive gear being frictionally connected via a sliding clutch. Advantageously, the crank is connected in a connected manner. By means of the slip clutch, the tightening of a finger between the front swivel plate and the casing frame is advantageously eliminated, and the transmission of the adjusting device is not damaged when the front swivel plate is manually operated (open / closed). . The manual closing of the open front swivel plate is particularly facilitated by forming the sliding clutch by a coil spring which presses against the shaft neck of the crank, one end of which is fixedly connected to the drive gear. . As a result, a different slip moment is generated depending on the rotation direction of the crank and the drive gear (in the winding direction or in the opposite direction). In this case, the winding direction of the coil spring is selected so that a relatively small slip moment acts when the front swivel plate is manually closed, while a relatively large slip moment acts when the motor-driven closing plate is closed. . This allows the front swivel plate to be easily closed manually and, in the case of a motorized closure, allows a slip moment large enough to reliably close the front swivel plate. become. More advantageously, the crank, the coil spring and the drive gear form one pre-assembled component, which can be easily positioned on the housing frame.

When the front swivel plate is closed, the angle formed between the lever and the crank arm determines the rotational moment transmitted from the lever to the crank when the rotational moment acts on the front swivel plate from outside. At this angular position, it is designed to be less self-locking which acts against the rotational moment (resulting from the friction acting between the slide guide and the crankpin of the crank and the slip moment of the sliding clutch). Thereby, the closed front swivel plate advantageously abuts against the casing frame without chattering, and does not open even if other forces are induced under vibration loads or by acceleration of electrical equipment. . When the front swivel plate is open, the angle formed between the lever and the crank arm is such that the rotational moment transmitted from the lever to the crank when the front swivel plate is manually closed acts against the rotational moment. It is designed to be larger than the effect. The release of a manual or motorized closing operation is thereby made possible by lifting the front swivel plate.

Further, a first switch which is operated by the lever or the crank arm before the lever or the crank arm reaches its end position when the front swivel plate is opened is provided on the casing frame, and the front swivel plate is provided. Advantageously, the housing frame is provided with a second switch which is actuated by the lever or the crank arm before the lever or the crank arm reaches the other end position when closing. By means of these two switches, the drive motor acting on the adjusting device can be controlled, so that the drive motor is switched off when reaching each end position or shortly before. The special configuration of both switches as swing arm lever type switches makes it possible to automatically connect the drive motor by manual closing of the front swivel plate.

Advantageously, the center of gravity of the front swivel plate is located higher than the swivel axis formed by the first axis. This is because in such a configuration, the gravity of the front swivel plate assists the swiveling motion of the front swivel plate when the front swivel plate is opened. This is in particular because during the motorized opening of the front swivel plate, a relatively small slip moment of the sliding clutch acts during its final movement phase.

Advantageously, between the front pivot plate and the casing frame is one spring member which assists the pivoting movement of the front pivot plate when opened. With this spring member, uniform opening and closing of the front swivel plate can be obtained, and chattering due to the existence of gear play is also avoided. By means of this spring element, the sum of the opening moments of the front swivel plate without drive motor can be made greater than the sum of the braking moments or return torques caused by frictional action or actuation of the switch.
Furthermore, the spring element allows the motor to exert a braking action when the front swivel plate is opened and to serve only a specific opening movement.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the drawings.

In the cross-sectional view of FIG.
An on-board radio apparatus with a drive mechanism for a record carrier such as a CD or cassette is shown. The electrical device has a casing frame 1 on which various components of the electrical device are mounted. The casing frame 1 can be composed of one or more parts and has a front side 2, on the front side of which an opening 4 for inserting a record carrier into the record carrier housing of the reproduction unit (FIG. 5) is arranged. The casing frame 1 has a substantially rectangular parallelepiped shape in its front region and has a frame portion 3 in its rear region for mounting various components of the electric device. Further, as shown in FIGS. 1 and 5, on the front side 2 of the casing frame 1, a front revolving plate 5 is supported so as to be rotatable about a first axis 7. The front revolving plate 5 has a front side 21 facing the observer in a closed state of the front revolving plate, and an inner side 22 located opposite to the front side, and the inner side is closed. The front side 2 and the opening 4 of the casing frame 1 are covered. In particular, as can be seen from FIG. 5, a liquid crystal display element 78 is arranged along the front side 21 of the front swivel plate 5. Inside the front swivel board 5, a printed wiring board 75 equipped with electric elements and / or electronic elements 76 is arranged.

As best seen in FIG. 1, a lever 10 is further mounted on the casing frame 1 so as to be pivotable about the first axis 7. The lever 10 has a pivot joint in the first end section 11 for this pivoting support, which, although not shown, projects perpendicularly from the lever 10 and is arranged with respect to the first axis 7. The bearing pins are formed rotatably in bearing bushes of the housing frame 1 by concentrically arranged bearing pins. The bearing bush, not shown, of the casing frame 1 is arranged on a leg 6 extending from the front side 2 of the casing frame. The bearing pin of the lever 10 has a cylindrical notch, and one of two bearing pins provided on the front turning plate 5 is provided in the notch.
The book is also arranged concentrically with respect to the first axis 7. Of course, the lever 10 and the rotary joint of the front swivel plate 5 can be configured differently. What is important in this case is that the front swivel plate 5 and the lever 10 are supported so as to be able to swivel about the first axis 7, that is, the same axis. Further, as can be seen from FIG. 1, the first end section 11 of the lever 10 and the second end section 12 of the lever 10 remote from the front side 2 are introduced into the inside of the device, and will be described later. Adjustment devices 30, 40, 50
And are operatively coupled. Further, as can be seen from FIG. 5, the casing frame 1 has, on the front side thereof, a first stopper 64 for abutting the front swivel plate 5 in an open state and the front swivel plate 5.
Has a second stopper 65 for contacting in a closed state. The front swivel plate 5 has sections disposed on the inner surface side 22 of the front swivel board 5 and, in a closed state, sections disposed above and below the first axis 7. , 65. As shown in FIG. 5, a pin 66 protruding from the inner surface 22 of the front swivel plate 5 contacts the first stopper 64 in an open state. In the closed state, the front revolving plate 5 holds the second stopper 6 with the upper edge of the inner side 22.
5 and the second stopper is provided on the casing frame 1.
Is formed in the upper region of the front side 2. First stopper 6
The turning angle range of the front turning plate 5 supported on the casing frame 1 is defined by the fourth stopper 4 and the second stopper 65.

As can be seen from FIG. 1, the lever 10 has a bearing pin 16 extending between the first terminal section 11 and the second terminal section 12 and extending parallel to the first axis 7. One gear 15 is rotatably supported. The center axis of the bearing pin 16 is the second axis 1 parallel to the first axis.
6 around the second axis.
5 is rotatably supported. Furthermore, a first gear segment 9 with internal teeth is provided on the front side of the casing frame 1, and the tooth row of the first gear segment is the first gear segment.
It is arranged concentrically with respect to the axis 7. The individual teeth of the first gear segment 9 are radially oriented with respect to the first axis 7. Furthermore, a second gear segment 24 with external teeth is arranged on the inner side 22 of the front swivel plate 5, and the teeth of the second gear segment are also arranged concentrically with respect to the first axis 7. I have. Second gear segment 2
The four individual teeth are oriented radially away from the first axis 7. The gear 15 meshes with the first gear segment 9 at the same time as the second gear segment 2 in the form of a planetary gear set.
4 is also engaged. In this case, the second gear segment 24
Forms almost the planetary gear's sun gear,
The first gear segment 9 forms part of a circulating gear, and the gear 15 forms a movable planetary gear. Lever 1
When turning 0, the gear 15 meshes with the first gear segment 9 and rolls, thereby driving the second gear segment 24 of the front turning plate 5, whereby the front turning plate 5 is turned. The turning angle of the front turning plate 5 depends on the gear 15 and the first turning angle.
For example, when the turning angle of the lever 10 is 40 °, the front turning plate 5 turns 90 °. Of course, it is also possible to set another angle ratio. The front swivel plate 5 and the casing frame 1 together with the associated bearing pins can be manufactured as pressure-cast parts with small dimensional deviations, so that the first and second gear segments 9, 24 and the gear 1
5 can be optimally set.

As further shown in FIG. 1, the lever 10 is operatively connected with the adjusting device with its second end section 12. For this purpose, the second end section 12 of the lever 10 has a slide guide 17 which extends radially with respect to the first axis 7 and has an undercut edge 18.
It is constituted as a vertical groove having. First of lever 10
Since the end of the flute away from the end section 11 is open, the coupling member 36 of the adjusting device corresponding to the flute can be inserted into the flute at this open portion. is there. The adjusting device comprises, in particular, a crank 30 shown in FIG. 4, which has a shaft neck 32 and a crank arm 31 projecting vertically from the shaft neck. The shaft neck 32 forms a hollow cylindrical body having an inner peripheral wall and an outer peripheral wall 34, and is fitted over the bearing pin 48 by the inner peripheral wall. The bearing pin 48 is arranged concentrically on a third axis 55 parallel to the first axis 7 and is fixedly connected to the frame part 3 of the casing frame 1. By supporting the shaft neck 32 on the outer periphery of the bearing pin 48, a rotary joint for rotating the crank 30 about the third axis 55 is formed. At the end of the shaft neck 32 near the crank arm 31, the shaft neck 32 projects radially from the shaft neck 32.
A cylindrical disc 35 is provided, also extending concentrically with the third axis 55. The crank arm 31 is
A coupling member 36 is provided at the end 33 away from the end 2. The coupling member 36 forms a crank pin 36 that extends perpendicularly from the crank arm 31 parallel to the third axis 55, and the crank pin has one circular end 37 that extends from the crank arm 31. It has a groove 38. With the end 37, the crank pin 36 is slidably and rotatably supported in the slide guide 17 of the lever 10, that is, in the longitudinal groove. Further, as shown in FIG. 1, when the crank 30 rotates about the third axis 55, the crank pin 36 of the crank 30 moves within the slide guide 52 provided on the frame portion of the casing frame 1. Furthermore, the adjusting device has a drive gear 40 with external teeth shown in FIG. 4, which is also mounted rotatably about a third axis 55. The drive gear 40 is formed in a pot shape and has a side wall 41 and a cylindrical wall 42 extending from the side wall in the axial direction. The cylindrical wall surrounds the inner chamber 46. The teeth 45 are provided on the outer wall of the cylindrical wall 42. The side wall 41 of the drive gear 40 has a circular opening which is limited by a flange 44 which engages in a circular groove 49 of a bearing pin 48. The open end of the cylindrical wall 42 away from the flange 44 is fitted over the outer periphery of the cylindrical disk 35, so that a closed accommodating chamber is formed by the pot-shaped inner chamber 46 and the cylindrical disk 35. A sliding clutch 60 is disposed in the accommodation room. The drive gear 40 is rotatably supported about a third axis 55 along a bearing pin 48 and a cylindrical disk 35 of the crank 30. The slip clutch 60 is fitted over the outer peripheral wall 34 of the shaft neck 32 of the crank 30. When the coil spring 60 is not loaded, the inner diameter of the winding 63 of the coil spring 60 is designed to be smaller than the outer diameter of the shaft neck 32. The outer peripheral wall 34 of the shaft neck 32 is compressed by a force which is in contact with the outer peripheral wall 34 and in a radial direction with respect to the third axis 55. The coil spring 60 acts, as it were, as a wrapping brake by the friction caused by this. The first end 61 of the coil spring 60 is connected to the third axis 55
Is bent outward in the radial direction with reference to. For this positioning, two jaws integrally formed on the side wall 41 hug the first end portion 60 of the coil spring 60 like a bar, though not shown in FIG. The important point here is that when the drive gear 40 rotates, the first end 61 of the coil spring 60 rotates together.
The component group consisting of the coil spring, the crank, the bearing pins and the drive gear can be mounted in advance and is fixed to the lever 10 and the casing frame 1 after this mounting. As can be further inferred from FIG. 1, the teeth 45 of the drive gear 40 mesh with a worm gear 50 which is rotatably supported on the frame portion 3 of the casing frame 1. The drive gear 40 and the worm gear 50 form a worm gear device. The worm gear 50 itself is connected to the drive motor via a gear not shown.

Further, as shown in FIG. 3, a first switch 68 and a second switch 69 constituting a swing arm lever type switch are fixed to the frame portion 3, and both switches can be operated by the lever 10. The first and second switches 68 and 69 are electrically connected to the drive motor via electric or electronic delay elements. As can also be seen from FIG. 5, a spring element is provided which is configured as a tension spring 70 in the embodiment shown. One end of the tension spring 70 is engaged with the lever 10 and the other end is fixed to the frame portion 3 of the casing frame 1. The tension spring 70 opposes the pivoting movement of the lever 10 when the front swivel plate 5 is closed.
In a closed state, the person is nervous. The tension spring 70
Are designed such that the sum of the opening moments of the front swivel plate is larger than the sum of the braking moment or the return rotation moment. Further, as shown in FIG. 5, a protective flap 26 is rotatably supported on the inner side 22 of the front swivel plate 5. The protective flap 26 is pivotally mounted at one end thereof about a fourth axis 28 extending parallel to the first axis 7 and the other end of the protective flap 26 is shown in the drawing. Retracting section of front side 2 abutted by the omitted spring (section shifted to the back)
It slides along 27. When the front turning plate is opened by the motor, the turning motion of the front turning plate 5 is assisted by the spring of the protective flap 26, the tension spring 70 and the gravity of the front turning plate 5.

When the front swivel plate 5 in the closed state (FIG. 2) is to be opened, the drive motor for driving the worm gear 50 is turned on via a switch provided on the front side 2 of the electric equipment. . The drive gear 40 is rotated by the worm gear 50, and the crank arm 31 of the crank 30 is also rotated to the left hand as viewed in FIG. The crank arm 30 that rotates toward the left hand exerts a rotational moment on the lever 10 via the coupling member, that is, the crank pin 36, so that the lever 1
0 is also pivoted about the first axis 7 to the left as seen in FIG. This causes the gear 15 to roll along the first gear segment 9 and rotate about the second axis 16 to the right. The gear 16 itself rotating toward the right hand causes the second gear segment 24 to rotate about the first axis 7 toward the left hand, so that the front turning plate 5 turns to the position shown in FIG. Finally, the vehicle turns to the position shown in FIG. Before the pin 66 of the front swivel plate 5 comes into contact with the first stopper 64, the first switch 68 (FIG. 3) is operated by the lever 10 and the drive motor is shut off for an extended time. When the front revolving plate 5 is opened, the coil spring 60
The first end 61 (FIG. 4) is rotated in the direction opposite to the winding direction of the coil spring 60. Thereby, the contraction pressure of the winding 63 against the outer peripheral wall 34 is
Since the pressure is gradually reduced from the strong initial pressure, the coil spring 60 acting as a friction clutch gradually surrounds the shaft neck 32 while surrounding it. Since the tension of the tension spring 70 and the gravity of the front swivel plate 5 assist the sliding clutch in the final movement phase, a reliable opening of the front swivel plate is obtained. When the front swivel plate 5 comes into contact with the first stopper 64 (because the shaft neck 32 cannot rotate any more), the winding 63 immediately slides along the outer peripheral wall 34 of the stopped shaft neck 32. become. That is, the slip clutch slips idle. Therefore, damage to the turning mechanism when the front turning plate reaches the end position can be avoided.

When the front swivel plate 5 is closed by a motor, the drive gear 30 rotates to the right as viewed in FIG. 3, and the coil spring 60 is wound around the coil spring 60 by the interlocking movement of the first end 61 thereof. It is loaded in the growth direction. This causes one winding to gradually contact each other along the shaft neck 32 towards the other winding, and the winding 63 gradually contracts around said shaft neck 32. The sliding clutch acts and the coil spring 60 pivots the shaft neck 32 to the right as seen in FIG. This causes the crank arm 31 to pivot toward the right hand, and the lever 10 pivots about the first axis 7 toward the right hand as viewed in FIG. The pivoting of the lever 10 to the right hand ultimately results in the gear segments 9, 24 and the gear 1
The front swivel plate 5 closes via the gear transmission consisting of The lever 10 activates the second switch 69 immediately before the front swivel plate reaches the second stopper 65, whereby the drive motor shuts off with a delay to ensure that the front swivel plate 5 reaches the closed end position. Is done. In the closed position of the front swivel plate shown in FIG. 2, the maximum slip moment of the sliding clutch finally acts. Nevertheless, even if the drive motor is still rotating after the front swivel plate 5 has already reached the second stopper 65, the slipping of the slip clutch is possible. The magnitude of the effective slip moment of the coil spring 60 can be optimally adapted to the requirements depending on the spring tension of the coil spring, the number of windings and the winding diameter. When the front swivel plate 5 is open, a relatively small slip moment of the slip clutch is acting.

In FIG. 3, when the front swivel plate 5 is manually closed, the lever 10 is swiveled to the right by making the sliding clutch relatively weak. Next, the shaft neck 32 is also turned rightward through the crank arm 31. However, the effective slip moment of the coil spring 60 is relatively weak, and the second end 6
Since 2 is not fixedly connected to the crank, but rather slides along the cylindrical disc 35, the shaft neck 32 slips only between the windings 63 and the sliding clutch does not act. Thus, damage to the gear transmission is avoided. When the front swivel plate is manually lifted, the lever 10 activates the first switch 68 again, whereby the drive motor is connected and the motor turns the front swivel plate to the closed end position of the front swivel plate.

1 and 3, the lever 10 and the crank arm 31 form an angle with each other at the open end position of the front swivel plate 5, and the angle acts on the crank arm 31 from the lever 10. However, the rotational force perpendicular to the lever axis 13 is designed to form an angle α with respect to the crank arm 31, such that the angle α during manual closing at least overcomes the self-locking action. in size, i.e., if the minimum angle of self-locking action is just overcome alpha _mu, an alpha> alpha _mu. When the front swivel plate 5 is in the open state, the angle between the lever 10 and the crank arm 31 is determined by the sum of the friction moment generated in the slide guide 17 and all the friction moments of the crank bearing. 10 means that it is selected to be less than the moment exerted on the crank 30, thus meaning that a manual movement of the front swivel plate 5 is possible. On the other hand, as shown in FIG.
Is so small that the self-locking action cannot be overcome, that is, α
<Α _μ . This is a closed front swivel plate 5
Can not be released by a vibration load. The self-locking action of the front swivel plate 5 in the closed state is obtained by the angle formed between the slide guide 17 and the crank arm 31, the friction generated in the slide guide 17, and the slip moment of the slip clutch.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a casing frame of an electric device in a partially opened and closed state in which a front swivel plate is not completely opened or closed.

FIG. 2 shows the front swivel plate in a completely closed state.
FIG. 3 is a cross-sectional view of the electric device.

FIG. 3 is a cross-sectional view of the electric apparatus of FIG. 1 showing positions of first and second switches in a state where a front swivel plate is completely opened.

FIG. 4 is a cross-sectional view of an adjusting device provided with a slip clutch.

FIG. 5 is another cross-sectional view of the electric device in a state where the front swivel plate is completely opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Casing frame, 2 Front side of casing frame, 3 Frame part, 4 Opening, 5 Front revolving plate, 6 Leg pieces, 7 First axis, 9 First gear segment with internal teeth, 10 Lever, 11 1st terminal section , 12 second end section, 13 lever axis,
15 gears, 16 bearing pins or second axis,
17 sliding guide, 18 undercut edge, 21 front side of front swivel plate, 22 inside surface of front swivel plate, 24 second gear segment with external teeth, 2
6 Protective flap, 27 Reversing section, 28 4th axis, 30 crank, 31 crank arm, 32
Shaft neck, 33 end, 34 outer wall, 35 cylindrical disc, 36 coupling member or crank pin, 37
End, 38 circular grooves, 40 external geared drive gear,
41 side wall, 42 cylindrical wall, 44 flange,
45 tooth row, 46 inner chamber, 48 bearing pin, 49
Circular groove, 50 worm gear, 52 sliding guide,
55 third axis, 60 sliding clutch or coil spring,
61 first end, 62 second end, 63 winding, 64 first stopper, 65 second stopper, 66 pin, 68 first switch, 69 second switch, 70 tension spring, 75 printed wiring board, 76 electricity / Electronic element, 78 liquid crystal display element

Claims (20)

[Claims] 1. A casing frame (1) having a front side covered by a front swivel plate (5) pivotally supported on a first axis (7) in a front side region of the casing frame (1). In an electrical device of the type provided, at least one lever (10) is provided which is pivotally mounted about a first axis (7), the first end section (11) of which is provided with a casing frame. (1) is connected to a rotary joint positioned in the front side area and is connected to a second end section (1) of the lever;
2) an adjusting device (30, 40, 5) arranged on the casing frame (1) and adjustable by a drive motor;
0), and the lever (10) is moved by the adjusting device within a predetermined angular range.
The lever (10) is pivotable about an axis (7) and has a first terminal section (11) and a second terminal section (1).
A gear (15) is rotatably supported between the lever and the second axis (2), and the gear (15) has a second axis (16) parallel to the first axis (7). A first gear segment (9) with internal teeth, rotatable about the center and extending concentrically with respect to the first axis (7) in a region on the front side of the casing frame (1). ), Wherein the teeth of the first gear segment are oriented towards the first axis (7),
On the inner surface side (22) of the front swivel plate (5), the first
A second gear segment (24) having external teeth extending concentrically with respect to the axis (7) is fixed, and the teeth of the second gear segment are oriented in a direction away from the first axis (7). And a gear (15) supported by the lever (10) meshes with the first gear segment (9) and also meshes with the second gear segment (24), so that the first axis (7) ), The gear (15) meshes with the stationary first gear segment (9) and rolls when the lever (10) is turned around the same time, and at the same time, is fixed to the front turning plate (5). The second gear segment (24) is rotated about the first axis (7), and the front revolving plate (5) is turned about the first axis (FIG. 1). And electrical equipment. 2. An adjusting device (30, 40, 50) comprising:
A crank (30) pivotally mounted about a third axis (55) parallel to the axis (7), said crank (30) being mounted on said third axis (55); A shaft neck (32) and a crank arm (31) extending from the shaft neck (32), and the end (33) of the crank arm away from the shaft neck (32) is the second arm. It has a connecting member (36) projecting parallel to the three axes (55), said connecting member (36) being provided on a slide guide (17) formed on the second end section (12) of the lever (10). 2. The electric device according to claim 1, wherein the electric device is engaged with the inside of the electric device (FIG. 4). 3. A slide guide (17) is formed as a flute on the lever (10), said flute being provided in the adjusting device (30, 30).
The second end section (12) of the lever (10) in the region of (40, 50) extends radially along the lever with respect to the first axis (7) (FIG. 1). Electrical equipment as described. 4. The longitudinal groove (17) is formed as a molded groove having an undercut (18) when viewed in cross section, and the coupling member (36) is arranged with respect to the third axis (55). The crank arm (31) is configured as a crank pin projecting in parallel from the crank arm (31).
The end of the crank pin (36) which is away from the shaft is formed complementary to the cross section of the longitudinal groove (17), and is slidably supported in the longitudinal groove (17). The electric device according to claim 3, wherein the electric device is provided (Figs. 2 and 4). 5. A first stopper (6) for bringing the front swivel plate (5) into contact with the casing frame (1) in an open state.
4), and a second stopper (65) is formed on the casing frame (1) for abutting the front swivel plate (5) in a closed state (FIG. 5). 5. The electric device according to any one of items 1 to 4. 6. The adjusting device (30, 40, 50) has a drive gear (40) with external teeth for driving a crank (30), said drive gear being centered on a third axis (55). 3. The electric machine according to claim 2, wherein the crank is rotatably mounted and frictionally connected to the crank via a sliding clutch. 7. The drive gear (40) includes a worm gear (5).
0) to form a worm gear device, said worm gear (50) being rotatably supported by the casing frame (1) and being coupled to a drive motor;
The electric device according to claim 6. 8. The lever (10) or the crank arm (31) is actuated before the front swivel plate (5) reaches an end position in contact with the first stopper (64) when the front swivel plate (5) is opened. A first switch (68) is provided on the casing frame (1) and reaches a terminal position where the front swivel plate (5) comes into contact with the second stopper (65) when the front swivel plate (5) is closed. 6. The electrical device according to claim 5, wherein a second switch (69), which is previously activated by the lever (10) or the crank arm (31), is provided on the casing frame (1) (FIG. 3). 7. 9. The electrical device according to claim 8, wherein the first switch and the second switch are configured as swing arm lever switches. 10. A first switch (68) and a second switch (69) are conductively connected to the drive motor, and the drive motor is connected or disconnected when the first switch or the second switch is actuated. The electric device according to claim 8. 11. A first switch (68) and a second switch (69) are each conductively connected to the drive motor via one delay element, and the drive motor is activated when the first switch or the second switch is actuated. Is shut off only after a lapse of a delay time, said delay time reaching the end position defined by the first stopper (64) and the second stopper (65) when the front swivel plate (5) is open or closed. The electrical device according to claim 10, wherein the electrical device is designed to: 12. The shaft neck (32) of the crank (30)
A bearing pin (48) formed in the shape of a hollow cylinder having an inner peripheral wall and an outer peripheral wall (34) and fixed to the casing frame (1) and arranged concentrically around the third axis (55). 8. The electric apparatus according to claim 7, wherein the rotary cylinder is fitted with an inner peripheral wall of the hollow cylindrical body to form one rotary joint (FIG. 4). 13. A sliding clutch (60) comprising a coil spring concentrically disposed about a third axis (55), wherein the inner diameter of the coil spring is smaller than the outer diameter of the shaft neck (32). The coil spring (60)
Is fitted on the outer peripheral wall (34) of the hollow cylindrical shaft neck (32), and the coil spring (60) is under a spring preload.
13. The winding (63) of FIG. 4 is pressed against the outer peripheral wall (34) of the shaft neck (32) with a radial force on the third axis (55) (FIG. 4). Electrical equipment. 14. A first end (6) of a coil spring (60).
14. The electrical device according to claim 13, wherein 1) is positioned on one side wall (41) of the drive gear (40) (Fig. 4). 15. When the winding direction of the coil spring (60) is set to the motor type opening of the front swivel plate (5),
The drive gear (40) fixedly connected to the first end (61) of the coil spring (60) is rotated in a direction opposite to the winding direction of the coil spring (60), and the front turning plate (5) is rotated. ), The drive gear (40) fixedly connected to the first end (61) of the coil spring (60) is rotated in the winding direction of the coil spring (60). The electric device according to claim 14, wherein 16. When the front swivel plate (2) abuts on the front side (2) of the casing frame (1) and is closed, the angle formed by the lever (10) and the crank arm (31) is changed by rotation. When a moment acts on the front swivel plate (5) from the outside, the lever (10) is used to rotate the crank (3).
16. The electric device according to claim 1, wherein the rotational moment transmitted to (0) is designed to be smaller than a self-locking effect acting against the rotational moment (FIG. 2). machine. 17. When the front swivel plate (5) is open, the angle formed by the lever (10) and the crank arm (31) is such that when the front swivel plate is manually closed, the lever (10) is pulled out of the crank (30). The electric device according to any one of claims 1 to 16, wherein the torque transmitted to the electric device is selected so as to be greater than a self-locking action acting against the torque (Fig. 3). . 18. The front swivel plate according to claim 1, wherein the center of gravity of the front swivel plate is located higher than the first axis in the closed state of the front swivel plate. Electrical equipment as described. 19. A single spring member (70) acts between the front turning plate (5) and the casing frame (1), and the tension of the spring member (70) is increased when the front turning is released. 19. The electrical device according to claim 1, which facilitates a pivoting movement of the plate (5) (FIG. 5). 20. A lever (10) having a tension spring (70).
Is connected to the casing frame (1) through
When the tension of the tension spring (70) is released, the lever (1) is released.
20. The electric device according to claim 19, which assists the turning motion of 0).