JPH07291027A - Expansible fitting pipe elevating device - Google Patents

Abstract

PURPOSE:To provide an expansible fitting pipe elevating device for elevating an expansible fitting pipe with lighting, which is good in fitting performance and quality of merchandise. CONSTITUTION:An illuminating device 8 is connected to a connecting line of an elevating motor 6 of a corner pole through a constant-current circuit 22, a common connecting line is connected to a control circuit 21 for generating a driving signal fed to the elevating motor 6 of the corner pole 1, and generating a driving signal for lighting and extinguishing the illuminating device 8 according to the elevation operation of the corner pole according to various kinds of control signals for generating a driving signal for the elevating motor 6, and elevation of the corner pole and lighting and light-out of illumination are controlled through the common connecting line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic fitting tube lifting device, and more particularly to a telescopic fitting tube lifting device for lifting an illuminated telescopic fitting tube.

[0002]

2. Description of the Related Art FIG. 5 shows a perspective view of a usage example of a corner pole. The corner pole 1 is attached to the bumper 3 or the like of the automobile 2 so that the driver can easily recognize the end portion of the automobile 2.

FIG. 6 shows a block diagram of the corner pole 1.
The corner pole 1 is configured to extend and contract by fitting tubular bodies 1 _-1 to 1 _-4 having different diameters. A tube 4 is disposed inside the corner pole 1, one end of the tube 4 is fixed to the tubular body 1 _-1 at the tip of the corner pole 1, and the other end is fixed to the pulley 5.

The pulley 5 is connected to the motor 6 and rotates in response to the rotation of the motor 6 to wind up and pull out the tube 4.

A current supply wiring cord 7 is embedded in the tube 4. Wiring one end of the cord 7 is connected to the lighting device 8 provided at the distal end of the tube body 1 _-1 corner pole 1, the other end is connected to a current supply source.

FIG. 7 shows a block diagram of a conventional example. In the conventional corner pole lifting device, the motor 6 for lifting the corner pole 1 is connected to the expansion / contraction control circuit 11, and the wiring cord 7 having one end connected to the lighting device 8 is connected to the power supply line of the clearance lamp or the license lamp. It

The expansion / contraction control circuit 11 is supplied with a power supply voltage from a battery and a back signal BACK which becomes high when the gear of the vehicle is put in the back position. When the back signal BACK becomes high level. The drive signal for the motor 6 to rotate in the normal direction (arrow A ₁ direction) is supplied to the motor 6 for a sufficient time for the corner pole 1 to rise, and when the back signal BACK becomes low level, the motor 6 is driven.
There a time sufficient to a drive signal for reverse rotation (arrow A ₂ direction) Corner pole 1 descends, and supplies the motor 6.

As described above, the corner pole 1 rises when the vehicle is backed up, and the rear end of the vehicle can be easily recognized.

Further, the illumination device 8 is connected to a power supply line of a clearance lamp or a license lamp, and is configured to be turned on when the clearance lamp or the license lamp is turned on.

[0010]

SUMMARY OF THE INVENTION However, in a corner pole elevating device having a structure in which lighting and extinction of illumination are controlled in cooperation with the above-mentioned lamps and the like by receiving power supply from a conventional clearance lamp, license lamp, or the like. The illumination is turned on and off regardless of the state of, so unnecessary illumination may cause deterioration of the illumination,
When the pole is stored, there is a problem that light leakage occurs and the commercial property is deteriorated.

Further, in the conventional corner pole lifting device, at least two connecting lines are required for pole up / down control and two connecting lines for illumination control, so that a total of four connecting lines are required. Depending on the size of the required connector, coupler and wire harness, the connection line is not limited to the location where it can be routed, but it may not be possible to set it depending on the condition of the installation part, or a new hole for penetration must be provided. No longer,
In addition, the method of connecting each terminal in the state of
There is a high risk of incorrect connection due to incorrect insertion, and the mountability is poor,
There was a problem such as poor merchandise.

The present invention has been made in view of the above points, and an object of the present invention is to provide an expansion / contraction pipe elevating / lowering device which is excellent in mountability and commercialability.

[0013]

According to the present invention, there is provided expansion / contraction having a drive means for expanding / contracting an expansion / contraction fitting tube in which a plurality of tube bodies are elastically fitted, and an illuminating means for illuminating the expansion / contraction fitting tube. In the fitting tube elevating device, the drive means and the illumination means are commonly connected, and a drive signal supply line for supplying a drive signal to the drive means and the illumination means and a drive signal supplied to the drive means are controlled. And a control means for generating an illumination drive signal for driving the illumination means according to the control signal.

[0014]

According to the present invention, wiring can be reduced by supplying a drive signal from a drive signal supply line common to the driving means for driving the telescopic fitting tube and the illuminating means for illuminating the telescopic fitting tube. It is possible to improve the sex. Further, since the control means generates a drive signal for driving the lighting means in accordance with the control timing of the drive signal for driving the driving means, the lighting means is controlled to be turned on / off in accordance with the driving operation of the telescopic fitting tube. it can.

[0015]

1 is a block diagram of an embodiment of the present invention. 6, those parts which are the same as those corresponding parts in FIG. 6 are designated by the same reference numerals, and a description thereof will be omitted.

The motor 6 for driving the expansion and contraction of the corner pole 1 is composed of a direct current motor and is connected between the up side output terminal T _U and the down side output terminal T _{D of} the control circuit 21. It rotates forward or backward depending on the reverse drive signal.

The up-side output terminal T _{U of the} control circuit 21
A constant current circuit 22 for supplying power to the lighting device 8 is connected between the output terminal T _D and the down output terminal T _D.

The constant current circuit 22 supplies a constant current to the lighting device 8 when a voltage is generated at the up-side output terminal T _U. The lighting device 8 is turned on when current is supplied from the constant current circuit 22.

FIG. 2 shows a block diagram of the control circuit 21 according to an embodiment of the present invention. The control circuit 21 includes a control circuit 23 and an internal control system power supply circuit 24.

A battery connection terminal T _BATT and a ground terminal T _EARTH are connected to the internal control system power supply circuit 24. A battery or the like is connected between the battery connecting terminal T _BATT and the connecting terminal T _EARTH , and the battery voltage V _BATT is applied.
The internal control system power supply circuit 24 generates various voltages V _C used in the control circuit unit 23 from the battery voltage V _BATT and supplies the various voltages V _C to the control circuit unit 23.

The internal control circuit section 23 includes a back input detection circuit 25, an ignition detection circuit 26, a back release signal delay circuit 27, a motor forward / reverse rotation switching control circuit 28, a motor drive time control circuit 29, an up motor driver 30, and a down. Motor driver 31, output switching circuit 32, illumination drive permission control circuit 33, illumination drive constant voltage circuit 34, illumination output control circuit 3
It is composed of 5.

A back input terminal T _BACK is connected to the back input detection circuit 25. The back input terminal T _BACK is connected to a switch or the like provided on the shift lever or the like of the automobile 2 and turned on when the shift lever is in the reverse position. The back detection circuit 25 detects ON / OFF of the switch, generates a back detection signal indicated by a high level when the presence / absence of a back is detected and a low level otherwise, and supplies the back detection signal delay circuit 27 with the back detection signal.

The back release signal delay circuit 27 delays the time when the back detection signal goes to the high level, goes to the back state, then goes to the low level, and goes back to the back release state.

The back release signal delay circuit 27 supplies the delayed signal to the motor forward / reverse rotation switching control circuit 28 and the illumination drive permission control circuit 33.

An ignition detection circuit 26 is connected to the motor forward / reverse rotation switching control circuit 28. The ignition detection circuit 26 is connected to an ignition input terminal T _IGN connected to the ignition switch, generates an ignition detection signal which becomes a high / low level according to ON / OFF of the ignition switch, and a motor forward / reverse rotation switching control circuit. 28.

The motor forward / reverse rotation switching control circuit 28 has an ascending drive direction switching signal MU and an ascending drive direction which become high level when the back detection signal from the back release signal delay circuit 27 is high level and low level when the back detection signal is low level. A descending drive direction switching signal M which is an inverted signal of the switching signal MU.
Generate D. At this time, when the signal from the ignition detection circuit 26 is at a high level, that is, when the ignition switch is on, the ascending drive direction switching signal MU and the descending drive direction switching signal MD are generated.

The ascending drive direction switching signal MU and the descending drive direction switching signal MD output from the motor forward / reverse rotation switching control circuit 28 are supplied to the motor drive time control circuit 29. The motor drive time control circuit 29 sets the high time of the supplied ascending drive direction switching signal MU and the supplied descending drive direction switching signal MD to a predetermined time sufficient for completing the ascending and descending of the corner pole 1. Control.

The ascending drive direction switching signal MU whose time is controlled by the motor drive time control circuit 29 is supplied to the up motor driver 30, and the descending drive direction switching signal MD is supplied to the down motor driver 31.

The up motor driver 30 converts the up drive direction switching signal MU into the motor drive voltage V _M +, and the down motor driver 31 down the drive direction switching signal M.
Convert D to motor drive voltage V _M- .

Converted by the up motor driver 30
Motor drive voltage V_M+ Is supplied to the output switching circuit 32,
Motor drive power converted by the down motor driver 31
Pressure V _M-Is output terminal T_DIs supplied to.

The output switching circuit 32 outputs the motor drive voltage V _M + from the up motor driver 30 and the constant voltage V _ILM generated by the illumination drive constant voltage circuit 34 according to the control signal from the illumination output control circuit 35. And switch it to supply it to the output terminal T _U.

In the illumination driving constant voltage circuit 34
Is the battery voltage V_BATTAnd illumination driving permission system
The permission control signal is supplied from the control circuit 33.
The signal is high level that allows the illumination drive.
Battery voltage V _BATTOf the motor 6 based on
Insufficient for driving, and illumination lights
Constant voltage V that is sufficient for_ILMGenerate a permission control signal
It becomes a low level that does not allow illumination drive
Stop the operation.

The illumination drive permission control circuit 33 is supplied with a back detection signal from the back release signal delay circuit 27, and is also supplied with a light control signal L which is at a high level from the light lighting terminal T _L when the head or the like is turned on. .

The illumination drive permission control circuit 33 supplies the illumination drive constant voltage circuit 34 as a permission control signal when the write control signal L is at a high level and the signal output from the back release signal delay circuit 27 is at a high level.

The illumination output control circuit 35 is supplied with the descending drive direction switching signal MD from the motor forward / reverse rotation switching control circuit 28 and the motor drive time control circuit 2 is supplied.
From 9 the time-controlled rising drive direction switching signal MU 'is supplied.

The illumination output control circuit 35 detects the completion of the ascent of the corner pole 1 by the time-controlled ascending drive direction switching signal MU ', and detects the descent start of the corner pole 1 by the descending drive direction switching signal MD. An output control signal that is at a high level while the corner pole 1 is rising is generated and supplied to the output switching circuit 32.

The output switching circuit 32 is an illumination output.
The output control signal supplied from the control circuit 35 is at high level
When, that is, while the corner pole 1 is rising,
Voltage generated by the constant voltage circuit 34 for driving the illumination
V_ILMOutput terminal T_UTo the output control signal
At the bell, that is, while the corner pole 1 is rising
While descending, when it is descending
Output voltage V of Ivar 30 _UOutput terminal T_USupply to.

FIG. 3 shows an operation explanatory diagram of the control circuit according to the embodiment of the present invention.

First, when the user sets the transmission to the back gear while the ignition is on, the BACK input is detected and transmitted to the BACK cancellation signal delay circuit 27.

Since the BACK cancellation signal delay circuit 27 is a back setting input, the motor is directly (without delay)
It is transmitted to the reverse rotation switching control unit and switches the motor driving direction to the rising side (MU: Hi, MD: Low).

The back release signal delay is transmitted to the drive permission control circuit 33, and if the L terminal is in the Hi input (light is on) state, a constant voltage is driven.

In response to the above operation, the motor drive time control section operates and permits MU and MD output for a fixed time.

The above signals are transmitted to the drivers 30 and 31 to perform motor drive outputs (M +, M-). At this time,
Since the illumination output control unit switches the output to the motor driver side, the motor rotates upward.

After the motor drive time has elapsed and the MU output has stopped, the illumination output control section
Switch the output to the constant voltage source side.

The above switching is continued until the MD output is in the Hi state (the motor driving direction is set to the lower side).

Next, when the back gear is released, the BAC
The K release signal delay circuit 27 delays the signal for a certain period of time, and the signal is transmitted to the motor forward / reverse rotation switching control unit and also transmitted to the drive permission control circuit 33 of the illumination voltage source to stop the constant voltage source output.

In response to the above signal, the motor forward / reverse rotation switching control unit switches the motor drive direction to the descending side (MU: Low, MD: Hi), and the illumination output control unit controls the output switching to the motor driver side. Switch.

In response to the above operation, the motor drive time control section operates and permits MU and MD output for a fixed time.

The above signal is transmitted to each driver to perform motor drive output (M +, M-). At this time, since the illumination output control unit has its output switched to the motor driver side, the motor rotates downward.

FIG. 4 shows an operation explanatory diagram of one embodiment of the present invention. Indicates the period in the normal state (setting other than the back position / pole stored state). Indicates the period during which the pole is raised (motor rotates forward and illumination lights up). ~ Is the back position setting state (pole rising state)
Indicates the period. ~ Indicates the period in which the illumination is on. ~ Indicates the period when the back position setting is released. Indicates the period during which the pole is maintained in the raised state and the illumination is maintained in the illuminated state. Indicates the period of pole lowering operation (motor reverse rotation, illumination off). Indicates the period in the normal state (setting other than the back position / pole stored state).

Further, at this time, since the lighting period of the illumination is in a state where the pole is raised and the pole is kept stopped at the upper end of the pole, the luminance change of the illumination due to the voltage difference therebetween is suppressed and kept constant. A diode is connected to the constant current circuit 22 for keeping the brightness constant with the direction from the terminal T _U to the terminal T _D as the forward direction, and operates only when a voltage is applied in the rising direction of the pole. Has become.

As described above, according to this embodiment, since two wire harnesses are used to control the space between the vehicle-mounted lift control device (controller) and the vehicle-mounted lift device (corner pole), it is possible to route the inside and outside of the vehicle. , Restrictions on through holes, etc. are alleviated. Also, since the illumination is off while the pole is stored, there is no light leakage when the pole is stored.
Further, since the illumination is driven with a constant current, it is possible to maintain a constant brightness even when the vehicle voltage changes. Further, since the pole does not light up while the illumination is not required to light up and the pole is stored, the life of the illumination can be extended. Further, since the independent illumination connector is integrated with the controller connector, work efficiency can be improved.

[0053]

As described above, according to the present invention, since the raising and lowering of the corner pole and the lighting control of the lighting can be performed by a common control line, the wiring can be simplified and the mounting allowable range can be expanded. Since the lighting of the light can be controlled according to the up and down movement of the pole, the lighting does not light up when the pole is housed and the like, and the merchandise can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a configuration diagram of a control circuit according to an embodiment of the present invention.

FIG. 3 is an operation explanatory diagram of a control circuit according to an embodiment of the present invention.

FIG. 4 is an operation explanatory diagram of the embodiment of the present invention.

FIG. 5 is a diagram illustrating the use of a corner pole.

FIG. 6 is a configuration diagram of a corner pole.

FIG. 7 is a block diagram of a conventional example.

[Explanation of symbols]

 1 Corner pole 6 Motor 8 Lighting device 21 Control circuit 22 Constant current circuit 33 Illumination drive permission control circuit 34 Illumination drive constant voltage circuit 35 Illumination output control circuit

Claims (1)

[Claims] 1. An expansion / contraction fitting tube elevating device comprising: a driving means for expanding / contracting an expansion / contraction fitting tube in which a plurality of tubular bodies are elastically fitted, and an illuminating means for illuminating the expansion / contraction fitting tube, The driving means and the illuminating means are commonly connected, and the illuminating means is responsive to a drive signal supply line for supplying a drive signal to the driving means and the illuminating means, and a control signal for controlling the drive signal supplied to the driving means. And a telescopic fitting tube elevating device having a control means for generating an illumination drive signal for driving the.