JPH02267038A - Storage box opening and closing controller - Google Patents

Abstract

PURPOSE:To provide automatic opening/closing motion with simple operation by applying opening or closing effort at first to cause driven motion in an opening or closing direction through a motor afterwards in the case of an opening/closing controller of a glove box for vehicle. CONSTITUTION:When opening effort is given to the cover 13 of a glove box, a slippage is generated in a slip joint 21 between a driven side rotary shaft 20 and a rotary shaft 17 on a motor 15 side, a switching contact 31 facing to a changing switch 27 turns on and the motor 15 is rotated and driven in an opening direction, and when it comes into contact with a stopper at opening end, the slip joint 21 slips and the switching contact 31 is off, the motor 15 stops. When closing effort is given to the cover 13 in its opened condition, it is closed by reverse operation to the above. It is thus possible to minimize the burden given to an operator and provide sufficient safety.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an opening/closing control device for a storage box such as a glove box provided in an instrument panel of a vehicle such as an automobile.

(Prior Art) Generally, it is important that a storage box such as a glove box provided on an instrument panel of a vehicle such as an automobile can be easily opened and closed by a simple operation by a passenger.

A conventional proposal for this type of storage box opening/closing device is one in which a switch is turned on and off in conjunction with the opening and closing of the lid, and this on/off signal is used to control the lighting of internal lighting lamps (Utility Model No. 62-77838). Publication No.), shape memory alloy used in the drive source for opening and closing the lid (Utility Model Publication No. 59-12543)
No. 9), one using a vacuum pressure actuator to close the storage box (Utility Model Publication No. 57-14854)
Publication No. 9) etc.

In the first example, the lighting of the illumination lamp is controlled in conjunction with the opening and closing of the lid, but no particular consideration is given to automation or facilitation of the lid opening/closing operation itself.

Furthermore, the second example uses electric heating energy to raise the temperature of the shape memory alloy, which poses a problem in terms of energy efficiency. In addition, the structure is complicated because the shape memory alloy is embedded, the response is slow, and it cannot be stopped at a desired position. Moreover, energy must be continuously consumed to maintain the open or closed state. Furthermore, if a shape memory alloy is used to keep the lid closed at low temperatures, there is a problem that the lid may open and close when the room gets hot in the summer.

Further, the third example requires a device that generates vacuum pressure and does not cause major damage, which is an obstacle to reducing the weight of the vehicle.

(Problems to be Solved by the Invention) As described above, the conventional devices do not fully satisfy the requirements as an opening/closing device for a storage box of a vehicle.

An object of the present invention is to provide a storage box opening/closing control device that can be easily and automatically opened and closed by simple operations.

[Structure of the invention]

(Means for Solving the Problems) A storage box opening/closing control device according to the present invention controls the opening and closing of a storage box using the rotational force of a motor, and includes a drive-side rotating shaft rotated by the motor, and a storage box opening/closing control device. It has a rotation shaft on the driven side that is connected to the opening/closing mechanism for opening and closing the storage box, and opens or closes the storage box by rotational movement. In addition, these two rotating shafts are always connected and rotated together, and if a difference in the rotational force of these two rotating shafts exceeds a predetermined value, slippage in the rotational direction between the two rotating shafts is prevented. A slip joint is provided to allow this to occur.

Furthermore, when the amount of slippage of this slip joint reaches a predetermined angle, one of the contacts provided respectively corresponding to the slipping direction turns on, giving a rotation command to the motor in a direction that eliminates the difference in rotational force. A changeover switch is provided.

Moreover, the invention according to claim 2 further adds a starting circuit to the above configuration. That is, the starting circuit has a switch for opening and closing commands, and operates when one of these switches is turned on,
The motor includes a starting relay that gives a rotation command to the motor in a direction opposite to the direction of the open or close command given by the switch that is turned on, and also opens the motor command circuit given by the changeover switch. Furthermore, when the rotation of the motor in the opposite direction to the command direction causes a slippage in the slip joint, and any contact of the changeover switch is turned on, the start relay is reset, and the command to rotate the motor in the opposite direction is caused. It has a reset relay that releases the switch and returns and closes the motor command circuit by the changeover switch.

(Function) In the present invention, for example, when opening a storage box that is in a closed state, when opening operation force is applied manually, the motor is in a stopped state, so the rotating shaft on the driven side, which is the opening/closing mechanism side, There is a difference in rotational force between the rotary shaft and the rotating shaft on the motor side, and a slip occurs in the slip joint constructed between the two. When this amount of slip reaches a predetermined value, the contact provided corresponding to the slip direction turns on, and the motor rotates in the direction in which the difference in rotational force disappears, that is, in the direction that opens the storage box. Give instructions. Therefore, the motor rotates in the same direction and drives the storage box into the open state via the slip joint and the opening/closing mechanism. As a result, when the storage box reaches the open state, the rotation of the rotation shaft on the driven side is stopped by the action of the stopper, etc., but since the motor continues to rotate, there is a slip in the slip joint in the opposite direction to the above-mentioned direction. occurs. Due to the occurrence of this slippage, the contacts, which were in the on state, are turned off, and the rotation of the motor is stopped.

Note that this series of operations is the same for the closing direction.

In this way, when the opening or closing operation force is first applied, the motor is then driven in the opening or closing direction, and after the opening or closing operation, the motor is automatically stopped, reducing the burden on the operator. There are very few openings and closing operations.

Further, in the invention according to claim 2, a starting circuit is provided, and by operating a switch for opening or closing command provided in the starting circuit, the storage box can be opened or closed by the motor. . That is, the starting circuit is
When either the open or close command switch is turned on, the motor is rotated in a direction opposite to the original command direction.

As a result, a difference in rotational force naturally occurs between the shaft and the rotating shaft on the driven side, which is in a non-rotatable state, and slippage occurs in the slip joint. When this slip occurs, a contact provided in the corresponding slip direction is turned on, causing the motor to rotate in a direction that eliminates the difference in rotational force, that is, in the original command direction. The subsequent operation is the same as the first aspect of the invention, and the opening or closing operation is performed by the rotational force of the motor, and after the operation is completed, the motor is automatically stopped.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

First, an example of a storage box to which the present invention is applied will be explained with reference to FIGS. 3 and 4. Figure 3 shows the passenger seat part of a vehicle such as a car, and its instrument panel 1.
1 is formed with a glove box 12 as a storage box. The front surface of the glove box 12 is covered by a lid 13, and the lid 13 is supported by a hinge so as to be rotatable to the open state shown by the chain line in FIG.

Next, the opening/closing control device will be explained with reference to FIGS. 1 and 2. 15 is a driving motor, and a pinion gear 16 is integrally attached to the tip of its rotating shaft. Reference numeral 17 denotes a rotating shaft on the driving side, which is formed in a hollow shape, and a large diameter gear 18 that meshes with the pinion gear 16 is integrally provided at the right end in FIG.

20 is a rotating shaft on the driven side, and on the outer periphery of the intermediate part in the longitudinal direction is a contact disk 2 on the fixed side that constitutes the slip joint 21.
a is provided integrally. A portion of the driven-side rotating shaft 20 on the right side in the figure from the contact disk 21a is rotatably fitted inside the driving-side rotating shaft 17.

The slip joint 21 is connected to the fixed side contact disk 2 described above.
1a, and a contact disk 21b on the movable side thereof. The contact disc 21b on the movable side is fitted onto the outer periphery of the rotating shaft 17 on the drive side via a keyway. This contact disk 21b rotates integrally with the drive-side rotating shaft 17 through the keyway, but is configured to be able to slide in the axial direction.

A repulsion spring 22 is inserted between the gear 18 and the gear 18.
As a result, contact pressure is constantly applied to the contact disk 21g on the fixed side.

This slip joint 21 normally connects both the driving side and driven side rotating shafts 17.20 integrally and rotates them in synchronization with each other, but if either of the rotating shafts 17.20 is restrained. When a difference in rotational force occurs between the two rotating shafts 17 and 20, such as when the contact disk 2To on the movable side is moved by the spring 2 due to the waveform formed on the contact surfaces of both the contact disks 21a and 21b.
The contact disk 21a is displaced to the right in the figure against the pressure of 2, causing rotational slippage between the contact disk 21a on the fixed side and the contact disk 21a.

Reference numeral 24 denotes a contact disk, which is integrally fitted to the left side of the driven-side rotary shaft 20 in the figure via a keyway, and is integrally screwed together with the pinion gear 25. A part of the contact disc 21b on the movable side also serves as a contact disc, and together with the contact disc 24 and each contact piece to be described later, the changeover switch 2 is linked to the sliding of the slip joint 21.
7.

Ring-shaped contact bands 28 are provided on both sides of a portion (outer peripheral edge) of the movable contact disk 21b that also serves as a contact disk. A contact piece 30 is in contact with this contact strip 28 for connection to an external circuit.

Further, from these contact bands 28, the changeover switch 27
A contact 31 serving as a switching contact is provided to protrude toward the contact disk 24.

Further, ring-shaped contact bands 32 are formed on both sides of the outer peripheral edge of the contact disk 24, and these contact bands 32 are in contact with contacts 33 for external connection. This contact disk 24
As shown in FIG. 5(a), on the surface facing the contact 31, five pairs of contact portions are arranged in an arc shape so as to be able to contact the contact 31. There is. These five sets of contact portions serve as the respective contacts (shown in FIG. 6) of the changeover switch 27, and the corresponding contact numbers rOJ r
+IJ r+2Jr-IJ r-2J is attached.

Here, the inner contact portions of contact numbers r+2J and r-2J (on the left side in FIG. 5(a)) connect to a ring-shaped contact band 32 formed on the same surface. Also, contact number r+IJ
The same (inner contact part of r-IJ is connected via a resistor R to a ring-shaped contact strip 32 also on the same plane. Furthermore,
The contact parts on the outside (right side in Figure 5(a)) are as shown in Figure 5(b).
As shown in the figure, there are through holes 3 penetrating the back side.
5 to a ring-shaped contact strip 32 formed on the back surface.

The contact strips 32, the five sets of contact portions, the wiring patterns for connection, etc. on the contact disk 24 are printed by etching or the like.

Next, the motor 15 including the above-mentioned changeover switch 27
The configuration of the rotation command circuit will be explained with reference to FIG. In addition,
Reference numerals are assigned corresponding to those in FIGS. 1 and 2.

The changeover switch 27 has two sets of changeover sections 27A.

It consists of 27B. Each of these switching parts 27A and 27B has a switching contact 31 and the aforementioned five contacts "0".
We have r+1j r+2J r-IJ r-2J.

Further, a direct current voltage VDC is applied to the contactor 33 connected to the external circuit. The (+) side terminal of this contactor 33 is connected to a contact point r+2J r+1j of one switching section 27A and a contact point r-IJ r-2J of the other switching section 27B, respectively. Further, the (~) side terminals of the contactor 33 are connected to contacts r-1j r-2J of one switching section 27A and contacts r+2J r+IJ of the other switching section 27B, respectively. Note that only the contacts "+1" and "-1" of one switching section 27A are connected via a resistor R, respectively.

Furthermore, the switching contacts 3 of each of the switching sections 27A and 27B
1 and 31 are contacts 30 with corresponding external circuits.
, 30 are connected to the terminals of the motor 15.

Here, the switching contact 31.31 performs a switching operation in conjunction with the slip of the slip joint 21 shown in FIG. Each contact “+1” provided respectively
The ON state is between "+2", "-1", and "-2". In addition, contact "0" is for stop control of the motor 15, contact "+1" is for low speed forward rotation of the motor 15, contact "+"
2J is for high-speed forward rotation of the motor 15, contact "-1" is for low-speed reverse rotation of the motor 15, and contact "-2" is for high-speed reverse rotation of the motor 15.

Returning to Figure 1, pinion gear 2 on the output side (left side in the diagram)
5 is connected to the opening/closing mechanism of the storage box 12. If the storage box 12 is a glove box provided on the instrument panel 11 as shown in FIG. A combination with a pinion gear 38 that meshes with is used.

In this case, the pinion gear 25 on the output side connects the pinion gear 3 on the opening/closing mechanism side via a suitable power transmission mechanism.
8 may be configured to rotate.

Further, when the storage box 12 is a console box having a sliding lid 13 as shown in FIG. 8, the opening/closing mechanism is as follows.
Rack gear 3 formed along the inner edge of the slide lid 13
7 and a pinion gear 38 that meshes with this. In this case as well, through a suitable power transmission mechanism,
The output side pinion gear 25 may be configured to rotate the opening/closing mechanism side pinion gear 38.

Next, the operation will be explained. In addition, the following explanation is for storage box 1.
This is carried out assuming that 2 is the glove box shown in FIG.

Assume that the lid 13 is now in the closed state. When opening the lid 13, first, an opening operation force is manually applied to the lid 13.

By this operation, the lid 13 begins to open, and the driven-side rotating shaft 20 shown in FIG. 1 also rotates in the opening operation direction. On the other hand, since the motor 15 is in a stopped state and there is a large reduction ratio between the drive-side rotating shaft 17 and the motor 15, the drive-side rotating shaft 17 is subjected to a restraining force by the drive system including the motor 15. For this reason, a difference in rotational force is generated between the rotating shaft 20 on the driven side, and slipping occurs in the slip joint 21 formed between the rotating shaft 20 and the driven side rotating shaft 20.

This slippage causes the switching contact 31 shown in FIG.
1". When this amount of slip reaches a predetermined value (predetermined angle), the contact point "+1" provided corresponding to the slip direction becomes on. Therefore, the terminal (+) on the right side of the motor 15 in FIG.
) potential is applied to the left terminal in the figure, and a (-) potential is applied to the left terminal in the figure, and the motor 15 rotates forward at a low speed.

That is, a rotation command is given to the motor 15 in a direction in which the difference in the rotational force is eliminated (a direction in which the lid 13 is opened), and the rotation of the motor 15 in the same direction causes the slip joint 21 to be rotated.
, and the above-mentioned opening/closing mechanism to drive the lid 13 into the open state.

When the lid 13 reaches the open state due to the above operation, the opening operation of the lid 13 is stopped by the action of a stopper, etc. (not shown), and the rotation of the rotation shaft 20 on the driven side is also stopped, but the motor 15 continues to rotate. , slipping occurs in the slip joint 21 in the opposite direction to the above-mentioned direction.

Due to the occurrence of this slip, the switching contact 31 becomes the contact "+1"
Start moving toward contact point "O".

Therefore, the contact "+1" which was in the on state becomes an off state, power supply to the motor 15 is cut off, and the motor 15 stops.

Here, if the manual operating force at the start of the operation is strong, the slippage at the time of start reaches the contact point "+2", and the motor 15 rotates at high speed, so the opening operation speed of the lid 13 also becomes faster. If the operating force at startup is weak, the contact will slip (+1)
Since the motor 15 stops, the motor 15 rotates at a low speed due to the action of the resistor R, and the lid 13 slowly opens.

The series of operations described above are the same in the closing direction, except that the direction of sliding and the direction of rotation of the motor 15 are reversed.

Next, a configuration for starting the motor 15 to open or close the lid 13 without applying any operating force to the lid 13 will be explained with reference to FIG. 40 is basically the same as that shown in FIG. 6, and its explanation will be omitted.

In this example, the operator (vehicle driver, etc.) can place the device at hand, for example, on the armrest of the door trim, as shown in FIG.
The lid 13 of the glove box 12 is opened and closed by operating a switch 41 for opening and closing commands provided on a center console (not shown) or the like. In this case, it is preferable to cover it with a button-on type transparent cover 42 so as not to confuse it with other window opening/closing switches.

In this way, in order to start the motor 15 with the switch 41 for opening and closing commands, the motor command circuit 4 described above is required.
0, a new starting circuit 43 is provided.

This starting circuit 43 will be explained below.

SWI is a switching contact of the switch 41 for the open and close commands, and when the open side is operated, the contact 0 side is turned on, and when the close side is operated, the contact C side is turned on. This switching contact SWf is connected to the (+) side of the DC power supply BAT, and each of the contacts o and c are connected to the self-holding circuits At and A.
2. Connect the corresponding starting relays RLA and RLB to ground as shown.

Each of the starting relays RLA, RLB has three normally open contacts RLA-1, RLA-2, RLA-3 and RLB-1, RLB-2, RLB-3. Among them, the contact RL^-1 is connected to the DC i [#i BAT (+
) terminal and the motor terminal Mb, and the contact RL^-2 is connected between the (-) terminal of the power supply and the motor terminal Ma.
B-1 is connected between the (+) terminal of the same power source and the motor terminal M8, and the terminal RLB-2 is connected between the (-) terminal of the same power source and the motor terminal Mb.

With the above configuration, each starting relay RLA, RLB is
The motor 15 is rotated in a direction opposite to the original commanded direction (opening or closing direction), and its operation will be described in detail later.

Further, the contacts RLA-3 and RLB-3 are connected in parallel with each other, one end of which is connected to the (+) terminal of the DC power supply BAT, and the other end connected to the ground via the interlock relay Rx. This interlock relay RX is connected to the motor command circuit 40 and the motor terminal Ma.

Normally closed contacts Rx-1 and Rx-2 are provided between Mb and Mb.

These contacts RX-1 and RX-2 are interlock relay R
When X is energized, i.e. the starting relay RLA
.

When the RLB is in operation, it is in an open state and locked so that the command from the motor command circuit 40 is not applied to the motor 15.

Both RLC and RLD are reset relays, which are connected between the output line from the motor command circuit 40 and the ground via a diode and a resistor to prevent looping.
Due to the occurrence of slippage, the contacts r+I of the changeover switch 27
It is excited when Jr+2J or either "-1" or "-2" is turned on, and the self-holding circuit ^
■, Normally open contact RLC- provided in the reset circuit of ^2
1.Turn on RLD-1, self-holding circuit AI,
Restore the corresponding one of A2.

Next, the effect will be explained. Now, glove box 12 lid 1
3 is closed, and when the command switch 41 at hand is turned on to the open side to open it, the switching contact SWI is switched to the contact 0 side, and the self-holding circuit ^1 is operated. Therefore, the starting relay RL^ is energized and its contact R
Turn on L^-1, RLA-2, and RLA-3.

When the contact RLA-3 is turned on, the interlock relay RX is excited, and its contacts RX-1 and R1-2 are opened to lock the rotation command from the motor command circuit 40 so that it is not transmitted to the motor 15.

Further, by turning on the contacts RLA-1 and RLA-2, a (-) potential is applied to the motor terminal Ma and a (+) potential is applied to the motor terminal Mb, causing the motor 15 to reverse.

Here, the rotation direction (reverse direction) of the motor 15 is opposite to the original command direction. That is,
Since the original command direction is the direction to open the lid 13, the motor 15 should normally rotate, but the contact RL
The motor 15 is controlled to rotate in the opposite direction by A-1 and RLA-2, and attempts to close the lid 13. However, since the lid 13 is originally closed and cannot be closed any further, the sliding joint 21 shown in FIG. Move to the side. Then, when the contact "+1" is turned on, the (+) potential of the DC power supply DAT is applied to the reset relay RLI) to excite it. For this reason,
Contact RLD-1 turns on, returns self-holding circuit A1, and de-energizes starting relay RLA. This operation turns off contacts RLA-1, RLA-2, and RLA-3, canceling the rotation command (in the opposite direction to the original command direction) from contacts RLA-1 and RLA-2, and excitation of interlock relay Rx. Release the contact RX-1, RX-2
Return and close. After this, as described above, since the connection between the switching contact 31 of the switching relay 27 and the contact "+1" is on, the (+) potential is applied to the motor terminal Ma, and the (+) potential is applied to the motor terminal Mb.
-) A potential is applied to rotate the motor 15 in the normal rotation direction (the direction in which the lid 13 is opened), which is the original command direction.

The stop control of the motor 15 after the opening operation is the same as in the above example, and the explanation will be omitted.

Further, when closing the lid 13 which is in the open state, the switching contact SWI of the command switch 41 is operated to the contact C side. In the subsequent operation, the self-holding circuit A2 operates and the starting relay 11L
Although the difference is that B is excited, the basic operation is the same as in the open direction.

The above example is a case where starting is performed electrically, but the first
It may also be started mechanically as shown in FIG.

That is, an operating force in the opening direction is applied to the lid 13 by the spring 46, and the lid 13 itself is locked in the closed state by the lever 47. In order to open the lid, the wire 48 releases the lever 47 from locking the lid 1.
3 is opened within a certain range by the operating force of the spring 46. This opening operation of the lid 13 causes slippage as described above, and this slippage causes the changeover contact 31 of the changeover switch 27 shown in FIG. .

〔Effect of the invention〕

As described above, according to the present invention, the motor is started by a very simple operation by the operator, the storage box is opened or closed by this motor, and after this operation is completed, the motor is automatically stopped. Therefore, the burden on the operator is extremely small, and even when operated by the driver of the vehicle, there is no danger and sufficient safety can be obtained.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment of the storage box opening/closing control device according to the present invention, Fig. 2 is an exploded perspective view of the device shown in Fig. 1, and Fig. 3 is a view of the storage box. FIG. 4 is a perspective view showing a glove box installed in an instrument panel of a vehicle as an example, FIG. 4 is a side sectional view for explaining the open and closed states of the glove box shown in FIG. a) and (b) are a plan view for explaining the structure of the contact disk shown in FIG.
The figure is a circuit diagram showing an example of a control circuit used in the present invention, FIGS. 7 and 8 are a sectional view and a perspective view, respectively, showing the structure of an opening/closing mechanism for a storage box, and FIG. 9 is a circuit showing another example of a control circuit. 10 is a perspective view showing an example of the installation of the switch for opening and closing commands shown in FIG. 9, and FIG. 11 is a sectional view showing the configuration of a mechanical starter used in the present invention. 12...Storage box, 15...Motor, 17...Rotating shaft on drive side, 20...Rotating shaft on driven side, 21...Slip joint, 27...Changing switch, 31...Switching contact, 40...
Motor command circuit, 41... Open and close command switch, RLA, IILB-start relay, RLCRLD
・Reset relay

Claims (2)

[Claims] (1) In a storage box opening/closing control device that controls opening and closing of a storage box using the rotational force of a motor, the drive-side rotating shaft rotated by the motor is connected to the opening/closing mechanism for opening and closing the storage box, The rotating shaft on the driven side that opens or closes the storage box by rotational movement is always connected to both rotating shafts so that they rotate together. A slip joint that causes a slip in the rotational direction between rotating shafts, and when the amount of slip of this slip joint reaches a predetermined angle, one of the contacts provided corresponding to the slip direction turns on, causing the motor to A storage box opening/closing control device comprising: a changeover switch that gives a rotation command in a direction to eliminate the difference in rotational force; (2) In a storage box opening/closing control device that controls opening and closing of the storage box using the rotational force of a motor, the drive-side rotating shaft rotated by the motor is connected to the opening/closing mechanism for opening and closing the storage box, The rotating shaft on the driven side that opens or closes the storage box by rotational movement is always connected to both rotating shafts so that they rotate together. A slip joint that causes a slip in the rotational direction between rotating shafts, and when the amount of slip of this slip joint reaches a predetermined angle, one of the contacts provided corresponding to the slip direction turns on, causing the motor to It has a changeover switch that gives a rotation command in a direction to eliminate the difference in the rotational force, and a switch for opening and closing commands, and is operated when any of these switches is turned on, and provides the motor with the following: It has a starting relay that gives a rotation command in the opposite direction to the open or close command direction by the switch that is turned on and opens the motor command circuit by the changeover switch, and further, by the rotation of the motor in the direction opposite to the command direction. When slippage occurs in the slip joint and any contact of the changeover switch turns on, the starting relay is reset, the reverse rotation command to the motor is released, and the motor command circuit by the changeover switch is restored and closed. A storage box opening/closing control device comprising: a starting circuit having a reset relay for causing