JP4234493B2 - Window glass open / close detection mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing detection mechanism for a window glass that is attached to an automobile, a train, a side surface of a ship or the like so as to be opened and closed. More specifically, the present invention relates to a mechanism for detecting the raising and lowering of a window glass of an automobile or the like.
[0002]
[Prior art]
[Patent Document 1]
JP 2001-288960 A
A window glass is provided on the door or slide door of the automobile so as to be movable up and down. If you forget to close the window glass, there is a risk of theft or the child getting out of the body. Also, in the case of sliding door window glass, if you open the sliding door with the window glass lowered, your body or objects are inserted into the sliding door window glass, and you may be injured or damaged by being sandwiched between the vehicle body. There is a risk that It is useful for ensuring safety to detect the opening and closing of the window glass in order to inform the driver of such danger and to restrain the electric sliding door from being opened. Therefore, a slide door stop device has been proposed in which a glass lift detection mechanism is provided in the window regulator of the slide door, and the opening operation of the door is restrained when the window is open.
[0003]
Patent Document 1 discloses an intermediate stopper control mechanism shown in FIG. 12a as an example of the slide door glass lifting detection mechanism as described above. The intermediate stopper control mechanism detects the operating state of the window regulator 100 shown in FIG. 12b and regulates the operation of the slide door. The window regulator 100 is fixed to a guide rail 101 attached to the inner panel of the sliding door, a carrier plate (slider base) 102 that slides on the guide rail 101, and the carrier plate. Cable 103, a drum 104 for alternately driving the cable in the up-and-down direction of the carrier plate 102, and a drive motor M for rotationally driving the drum. The lower end of the window glass 105 is fixed to the carrier plate 102, and a window glass position detection mechanism 106 that detects the position of the carrier plate 102 is provided in the middle of the guide rail 101.
[0004]
As shown in FIG. 12a, the carrier plate 102 is provided with a pair of upper and lower pressing members 107a and 107b. The window glass position detecting mechanism 106 includes a base 108 fixed to the guide rail 101 and a shaft on the base. 109, a control lever 110 pivotally attached to 109, an over-center spring 111 that urges the control lever 110 to turn left and right with respect to the neutral position, an inner wire 112 locked to one end of the control lever 110, The upper arm 113a and the lower arm 113b are provided at the other end and engage with the pressing members 107a and 107b. The other end of the inner wire 112 is connected to an intermediate stopper (not shown) that restrains the movement of the sliding door in the opening direction, thereby forming an intermediate stopper control mechanism as a whole. Reference numeral 114 denotes an outer casing (conduit) that slidably guides the inner wire 112, and constitutes a control cable together with the inner wire.
[0005]
In the window glass detection mechanism 106 configured as described above, when the window glass 105 is lowered to a predetermined position, the lower pressing member 107b of the carrier plate 102 pushes the lower arm 113b downward. As a result, the control lever 110 rotates counterclockwise about the shaft 109 and rotates from the middle until it abuts against the lower limit stopper 115b by the biasing force of the over center spring 111, and this state is maintained. Therefore, the inner wire 112 is pulled, and an intermediate stopper (not shown) is operated to the restraining position. When the glass 105 is raised to a predetermined position, the upper pressing member 107a pushes the upper arm portion 113a upward, whereby the control lever 110 rotates clockwise and is rotated to the upper limit stopper 115a by the over center spring 111. To do. Therefore, the force pulling the inner wire 112 is loosened, and the intermediate stopper operates to the non-restraining position.
[0006]
[Problems to be solved by the invention]
According to the prior art, when the upper and lower pressing members 107a and 107b and the upper and lower arm portions 113a and 113b come into contact with each other, the control lever 110 is rotated, and the operation is directly transmitted to the inner wire 112 to detect the raising / lowering of the sliding door. It becomes. At this time, in order to prevent malfunction of the control lever 110, it is necessary to increase the spring constant of the over-center spring 111, which causes a large load for raising and lowering the glass. Although the lever ratio of the control lever 110 can be increased in order to avoid the load, the turning radius of the control lever 110 is increased, which makes it difficult to arrange and handle the door inside the door. Further, in order to pull the inner wire 112, an appropriate tension is applied to the wire 112. When the pulling operation is performed, the spring constant of the over-center spring 111 in consideration of the tension is required. The load will increase. Apart from that, friction in the conduit also increases the load.
[0007]
The present invention has been made in view of these problems, and it is possible to ensure an accurate operation using a simple detection unit, and to make the window glass ascent / descent detection mechanism compact while maintaining an accurate operation. This is a technical issue.
[0008]
[Means for Solving the Problems]
  The first aspect (Claim 1) of the window glass ascent / descent detection mechanism of the present invention includes a small piece that moves in accordance with the opening / closing operation of the window glass, a base that is disposed in the passage range of the small piece,Between the pivot endsIt is provided so that it can rotate freely.At one rotating end, one abutting piece comes into the passing range of the small piece and the other abutting piece is out of the passing range, and at the other rotating end, the other abutting piece comes into the passing range of the small piece. The one abutment piece is out of the passing range.With a pair of abutment piecesControl lever and the control lever toward the pivot end with the neutral position as the boundaryEnergizingWith an over center spring, A presser part provided on the control lever, and a presser part thereofPress or notOperated by, Provided on the baseIt consists of a limit switch,When the small piece moves in one direction, the pair of contact pieces rotates the control lever in one direction until the small piece pushes one of the contact pieces in the passing range until the neutral position is exceeded, and the small piece When the lever moves in the other direction, the small lever pushes the other abutment piece in the passing range to rotate the control lever in the other direction until the neutral position is exceeded.The presser foot is the limit switch.Switch between pressing and not pressingWhere the control isleverIn the rotation ofStandingIt is characterized by its position.
[0009]
  In the first aspect of such a window glass lifting detection mechanism,SaidThe presser part isControl leverProjecting to the base side from a fan-shaped support rib provided on the opposite side of the contact piece across the movable center(Claim 2) is preferred. Also,in frontThe base comprises an upper plate, a vertical wall extending vertically from one end of the upper plate, a lower plate extending vertically outward from the lower end of the vertical wall, and an opening provided in the vertical wall,The tip of the pair of contact piecesProtruding from the openingBeforeWhat is covered with the above-mentioned board or lower board and the said hanging wall (Claim 3) is preferable.
[0010]
  A second aspect of the window glass ascent / descent detector according to the present invention (Claim 4) includes a pin guide that moves in accordance with an opening / closing operation of the window glass, a base that is disposed in a passing range of the pin guide, and a baseFreely rotatableBe providedA detection lever, provided at the tip of the detection lever, cooperates with the pin guideA detection unit including a pin and an over-center spring that elastically biases the detection lever toward the neutral position;Said pivotally provided on said base, saidOf the detection leverTimes to one sideWith movement, One timeMove and hold its positionAs the detection lever rotates to the other side, it rotates to the other side and maintains its position.ControlleverAnd its controlRotating leverLimit switch that operates according to position andAnd when the pin guide moves in one direction, the pin guide pushes the pin to rotate the detection lever in the first direction, and after the pin guide passes the pin position, the detection lever is neutral. Returning to the position, when the pin guide moves in the other direction, the pin guide pushes the pin to rotate the detection lever in the second direction, and after the pin guide passes the position of the pin, the detection lever Configured to return to the neutral positionIt is characterized by that.
[0011]
  In the second aspect of such a window glass lift detector,The pin guide has a thick plate shape, and has an abutment surface on the upper plate and the lower plate, and the abutment surfaces are provided obliquely with respect to the moving direction of the pin (invention) Term5) Is preferred.
[0012]
  furtherA pair of left and right pressing parts are provided at the base end of the detection lever, and the control part pivots on the base, and the control lever is urged to rotate toward the turning end with a neutral position as a boundary. And a pressed portion provided at one end of the control lever is alternately pressed by a pair of pressing portions of the detection lever (claims)6) Is preferred.
[0013]
[Operation and effect of the invention]
In the 1st aspect of the window-glass raising / lowering detection mechanism of this invention (Claim 1), the limit switch and the control part for operating it are previously arrange | positioned in the optimal position on a base. For this reason, it is possible to prevent malfunctions that may occur when the initial arrangement is not appropriate, such as the degree of contact between the limit switch and the presser. Further, since it can be handled as one subassembly by being assembled in advance at the optimum position on the base, it can be easily assembled to the vehicle body or the like as compared with the case where a wire or the like is used instead of the limit switch.
[0014]
  Opening and closing the window glassFor example, when opening,With small piecesButControlOf the pair of lever contact pieces, one of the levers in the passing rangeAbuts against contact pieceAnd rotate the control lever until it exceeds the neutral position.TheWhen the control lever exceeds the intermediate position, the control lever is rotated in that direction to the rotation end by the over center spring. Therefore, even if the control lever rotates to the position where one abutment piece is out of the passing range of the small piece and the small piece no longer presses the one abutment piece, the control lever does not rotate in the returning direction, but rotates as it is. Rotate to the end. In this state, the one contact piece is out of the passage range of the small piece, and the other contact piece is located in the passage range of the small piece.
Next, when closing the window, as described above, the small piece pushes the other abutting piece to turn the control lever to the other, and turns to the other turning end by the center overspring. As a result, the other abutment piece is out of the passage range of the small piece, and the first one abutment piece is again positioned in the passage range of the small piece.
As described above, the small piece and the pair of contact piecesA contact is a pair of contact piecesAlternatelyThis is done by placing it at a position where it can contact the small piece, and then the presser part operates the limit switch. Position where this presser part operates the limit switchThat is, the position where the actuator of the limit switch is switched between pressing and not pressingIs said controlleverRotationNeutralpositionAndThe presser, contact piece, and limit switch are arranged so thatleverButTimesMovePush in neutral positionThe limit switch is the limit switchON / OFFTheSwitchingIt is possible to prevent malfunction.
[0015]
  Also,in frontWritingControl leverーOver center spring is used for operationSo, even after the small piece passes through the contact piece,Control leverTurn to end of rotationCan be moved.
[0016]
The base includes an upper plate, a vertical wall extending vertically from one end of the upper plate, a lower plate extending vertically outward from a lower end of the vertical wall, and an opening provided in the vertical wall. When the abutting piece is arranged so as to protrude from the portion, and the abutting piece is covered with the upper plate or the lower plate and the hanging wall (Claim 3), the abutting piece for detecting the window glass And the presser portion that transmits it to the limit switch are arranged separated from each other with the vertical wall as a boundary, so that they are less likely to affect each other and provide a safe mechanism. Further, when the base is attached to the vehicle body, for example, if the contact piece is arranged facing the outside of the vehicle body so as to contact the small piece, the contact piece and the small piece are sandwiched between the frame of the vehicle body and the base and sealed. Therefore, it is isolated from interference from other members and the risk of malfunctioning is reduced. Further, at this time, a portion requiring wiring such as a limit switch faces the inside of the vehicle body, so that the wiring can be easily performed. Further, since the limit switch is arranged toward the inside of the vehicle body, when the inner panel is removed, it is exposed immediately, and it becomes easy to repair or replace it.
[0017]
The second aspect (Claim 4) of the window glass ascent / descent detection mechanism of the present invention is arranged so that the pin of the detection unit comes into contact with the pin guide as the window glass opens and closes. The abutting direction is opposite between when the window glass is rising and when the window glass is descending, and the abutting is detected by the detection unit moving in the first direction and the second direction. While moving along the pin guide, the pin converts the vertical movement accompanying the opening and closing of the window glass into first and second movements used for this detection. After the pin has moved in the first or second direction by contacting the guide, the contact is released, but it is returned to the neutral position in the first and second directions to prepare for the next contact. stand by. Thus, since the detection unit is urged so as to always return to its neutral position after the contact of the pin, only one pin is required. Since detection is performed by one pin and one pin guide, the load associated with opening and closing of the window is reduced accordingly, and malfunction is prevented. Further, it is sufficient that a guide is provided so as to come into contact with the pin when the window glass is raised and lowered, and the position thereof can be selected relatively freely.
[0018]
  furtherThe detection unit includes a detection lever pivotally attached to the base and a spring that elastically biases the detection lever toward the neutral position, and the pin is provided at the tip of the detection lever.BecauseDepending on the distance between the pin of the detection lever and the pivot point, the lever ratio can reduce the load when the pin moves on the pin guide, and further reduce the load when the window glass moves up and down.
[0019]
  The pin guide has a thick plate shape, and has an abutting surface on the upper plate and the lower plate, and the abutting surfaces are provided obliquely with respect to the moving direction of the pin (Claims).5), The pin moves along the upper or lower plate of the guide as the window glass moves up and down, and the pin moves in the horizontal direction. And if a pin leaves | separates from the edge part of a guide, a detection part will return to a neutral position. At this time, the component of the force in the moving direction received by the movable member is reduced based on contact with the pin guide arranged obliquely, and the load received when the window glass is raised and lowered is reduced. The bigger it gets, the bigger it becomes. Even if the opening and closing speed of the window glass is fast, it is not easily affected by the impact at the time of contact.
[0020]
  In addition, a pair of left and right pressing portions are provided at the base end of the detection lever, and a control lever pivotally mounted on the base with the control portion and an over-rotation biasing the control lever toward the rotation end with a neutral position as a boundary. A center spring and a pressed portion provided at one end of the control lever are configured to be alternately pressed by a pair of pressing portions of the detection lever.6), The detection lever is always urged to the neutral position, and the two pressing parts for transmitting the movement of the pin operate only while the pin is moving on the contact surface of the guide, and thereafter Return to neutral. Therefore, unnecessary contact with the pressed portion can be eliminated and malfunctions can be reduced. Further, by combining the lever ratios of the detection lever and the control lever, it is possible to further reduce the load when the pin and the pin guide come into contact. Therefore, it is possible to apply a large force with the control lever with a small operation of the detection lever. Accordingly, a control lever spring having a large spring constant can be used, and the elevation detection mechanism of the present invention can be made more reliable.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the window glass lifting detection mechanism of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an embodiment of the first mode of the window glass detection mechanism of the present invention, FIG. 2 is a front view of a window regulator provided with the detection mechanism, and FIG. 4 is a schematic process diagram showing the operation of the control unit, and FIG. 5 shows another embodiment of the first aspect. 6 is a front view showing an embodiment of the second aspect of the window glass detection mechanism of the present invention, FIG. 7 is a perspective view of the main part of FIG. 6, FIG. 8 is a rear view of the detection part of FIG. 6, and FIG. 9B is a perspective view showing the control unit of FIG. 6, FIGS. 10A to 10J are schematic process diagrams showing the operation of the detection unit, and FIGS. 11A to 11H are schematic steps showing the operation of the control unit. FIG.
[0022]
First, a window regulator using the detection mechanism of the present invention will be described with reference to FIG. The embodiment A of the first aspect includes a guide rail 3, a carrier plate 1 guided by the guide rail 3, a window glass 4 supported by the carrier plate 1, and a positive plate for moving the carrier plate 1 up and down. From a reversely movable drive motor 6, a drum 5 that is rotationally driven by the drive motor 6, and a pull cable P that is routed in a loop through the drum 5 and that is halfway locked to the carrier plate 1 Become.
[0023]
The pull cable P is usually divided into a rising cable P1 that pulls the carrier plate 1 upward and a lowering cable P2 that pulls the carrier plate 1 downward. One end is locked to the carrier plate 1 and the other end is locked to the drum 5. . Pulleys 7 for changing the direction of the cable are provided at the upper and lower ends of the guide rail 3. The pulley 7 and the case 8 that accommodates the drum 5 are connected by a conduit 9 that guides the cable P in a slidable manner. In such a window regulator, when the drive motor 6 rotates, the drum 5 rotates as the drive motor 6 rotates, and the pull cable P transmits the rotational motion to the carrier plate 1 along the guide rail 3. The window glass 4 moves up and down. As can be seen from FIG. 2, the main part of the elevation detection mechanism of the present invention is fixed in a range of about 1/2 to 1/4 of the upper side of the guide rail 3.
[0024]
In Embodiment A of the first aspect of the present invention, as shown in FIG. 1, roughly, a small piece 10 provided on the carrier plate 1 of the window regulator, and the guide rail 3 is fixed within a moving range of the small piece 10. A plate-like base 2a, a control unit 11 and a limit switch 12 attached to the base 2a are provided. The limit switch 12 is provided with an actuator portion 12a that senses ON / OFF. The base 2a is fixed by spot welding or a fastener such as a bolt at a position above the guide rail 3, for example, about 1/2 to 1/5 of the length from the upper end of the guide rail 3.
[0025]
Next, the small piece 10, the base 2a, and the control part 11 will be described with reference to FIGS. 3a and 3b. As shown in FIG. 3 a, the small piece 10 is a protrusion that protrudes vertically from the carrier plate 1, and comes into contact with a contact piece 15 described later. The small piece 10 can be provided integrally with the carrier plate 1 or can be configured as a separate part.
[0026]
The base 2a is a plate-like member made of resin, metal, or the like, and can be integrally formed with resin or the like. The base 2a includes an upper plate 23, a vertical wall 25 extending vertically downward from one end of the upper plate 23, and a lower plate 24 extending vertically outward from the lower end of the vertical wall 25.
[0027]
The upper plate 23 has a substantially Y-shape formed by a semicircular portion 23b and a base portion 23a projecting radially outward from the central portion of the outer peripheral edge thereof. From the two ends of the semicircular portion 23b, the above-mentioned hanging wall 25 extends downward, and the lower plate 24 extends outward from the lower end of the hanging wall 25. On the other hand, there is a wall 27 extending in the same direction parallel to the vertical wall 25 from the end of the base portion 23a, and there is a bracket 28 formed by bending the wall 27 further outward. The base 2 a is fixed to the guide rail 3 by the bracket 28.
[0028]
  The lower plate 24 is a switch lever described later.(Control lever)And a pair of fan-shaped portions 24b projecting outward in the radial direction from the central portion 24a. The side edges of the fan-shaped parts 24b, 24b are continuous from the lower ends of the hanging walls 25, 25. The outer peripheral edge 24 c facing the upper plate 24 of the central portion 24 a has a slightly smaller diameter than the inner peripheral edge of the upper plate 23. An opening 26 is formed at the inner peripheral edge of the upper plate 23 and the outer peripheral edge 24 c at the center of the lower plate 24.
[0029]
A central portion of the central portion 24a of the lower plate 24 is provided with a switch lever shaft 13 for rotatably supporting a switch lever 14 described later, and the lower plate 24 for guiding the rotation of the switch lever 14. There is a notch 19 at the end opposite to the vertical wall 25. At the notch end of the notch 19, there is a locking piece bracket 21 formed by bending a part of the base 2a. In addition, there is a base spring retaining hole 22a for retaining the over center spring 16 disposed as described later within the rotation range of the switch lever 14. Further, the locking piece bracket 21 is provided with a mounting hole, to which the locking piece stopper 20 is attached. This locking piece stopper 20 has elasticity such as rubber, foaming resin, spring, etc. so as to reduce the impact applied to the locking piece 18, which will be described later, at the rotating end. Is used.
[0030]
  As shown in FIGS. 1 and 3b, the control unit 11 includes a switch lever 14 that is swingably supported by a switch lever shaft 13 with respect to the base 2a, and the switch lever 14 is urged to rotate about a neutral position. And an over center spring 16. The switch lever 14 includes a disc-shaped center portion 14a, a fan-shaped support rib 14b extending radially outward from the center portion, and the radially outward from the opposite side across the support rib 14b and the switch lever shaft 13. It has contact arms 14c, 14c that extend, and a stopper arm 14d that protrudes radially outward from the center portion 14a so as to be continuous with the edge of the support rib 14b. On the lower side of the outer peripheral edge of the support rib 14 b, a pressing portion 17 for pressing the actuator portion 12 a of the limit switch 12 protrudes toward the fan-shaped portion 24 b of the base 24. On the other hand, in order to release the limit switch 12 by opening the actuator portion 12a so as to be sandwiched between the outer peripheral edge of the support rib 14b and the base 2a from the pressing portion 17 toward the stopper arm 14d. There is a release part 39 provided. Further, on the lower surface side of the distal end of the stopper arm 14d, a locking piece 18 that contacts the locking piece stop 19 and stops the rotation of the switch lever 14 protrudes toward the lower surface. The tip portions of the pair of contact arms 14cSmall pieceAbutting pieces 15a and 15b that abut on 10 protrude toward the lower surface.
[0031]
The lever spring retaining hole 22b, the base spring retaining hole 22a, and the switch lever shaft 13 are provided so as not to overlap each other. In this way, when the switch lever 14 rotates slightly to one side with respect to when the three points of the switch shaft 13 of the switch lever 14, the base spring retaining hole 22a and the lever spring retaining hole 22b are aligned, Subsequently, the switch lever 14 is urged to rotate in that direction. Conversely, when the base spring retaining hole 22a moves beyond the straight line to the other side, the switch lever 14 is urged to rotate in that direction. Thereby, an effect as an over center spring is exhibited.
[0032]
First, the switch lever 14 and the base 2a are rotatably fixed to the base 2a by the switch shaft 13 with a contact piece 15 provided at one end of the switch lever 14 protruding from the opening 26 of the base 2a. Has been. On the other hand, at the other end of the switch lever 14, a locking piece 18 is protruded from the notch 19 to the same side as the contact piece 15. In this embodiment, a torsion coil spring is used as the over-center spring 16, and the tip of one arm is bent upward and locked in a lever spring retaining hole 22b provided in the switch lever 14, and the other arm is Is bent downward and locked in a base spring retaining hole 22a provided in the base 2a. The over center spring 16 is supported by locking the tips of both arms, and the coil is not supported. The over center spring 16 is repelled in the direction in which the angles of both arms are opened, thereby causing the lever spring retaining hole 22b of the switch lever 14 and the base spring retaining hole 22a of the base 2a to move away from each other. Energize.
[0033]
The operation of this control unit will be described with reference to FIGS. When the carrier plate 1 first moves downward, the control unit 11 configured as described above is opposed to the lower contact piece 15 a provided at one end of the switch lever 14 on the movement axis of the small piece 10. The other contact piece 15b is retracted upward so as not to obstruct the movement. The actuator 12a of the limit switch 12 does not operate because it enters the release portion 39 below the support rib 14b of the switch lever 14. At this time, the locking piece 18 is in contact with the lower locking piece stopper 20 (see FIG. 4a).
[0034]
When the carrier plate 1 is lowered and contacts the contact piece 15a, the switch lever 14 pushes the contact piece 15a of the switch lever 14 by the small piece 10 and rotates the switch lever 14 in the direction of the arrow L1. Let At this time, in the presser portion 17, the actuator portion 12 a comes out of the release portion 39 and is pressed by the arc-shaped presser portion 17 that gradually increases in radius. The limit switch 12 is actuated when the switch lever 14 comes near the middle position of the rotation (see FIG. 4b).
[0035]
At this time, the base spring retaining hole 22a and the lever spring retaining hole 22b are aligned in a straight line, and the switch lever 14 is further rotationally biased in the arrow L1 direction by the biasing force of the over center spring 16 (see FIG. 4c). As a result, the switch lever 14 reaches the limit position in the L1 direction and maintains that state. At this time, the small piece 15b that has been waiting on the upper side protrudes to the upper part of the small piece 10, and is now disposed on the moving axis of the small piece 10, and the small piece 15a is at a lower position that does not disturb the movement. Evacuated. On the other hand, in the presser portion 17, the presser portion 17 rotates so as to slide on the actuator portion 12a while maintaining the operation of the limit switch 12. Thereafter, the locking piece 18 comes into contact with the upper locking piece stop 20 to stop the rotation of the switch lever (FIG. 4c).
[0036]
When the small piece 10 is raised, this time, the upper contact piece 15b faces the small piece 10 of the carrier plate 1 on the moving shaft, and the other contact piece 15a does not obstruct the movement. Evacuated down to the position. At this time, the locking piece 18 is in contact with the upper locking piece stop 20. The presser portion 17 remains in a state where the actuator portion 12a of the limit switch 12 is pressed (see FIG. 4d).
[0037]
When the contact piece 15b is pushed by the small piece 10 (see FIG. 4e), the switch lever 14 is rotated in the R1 direction. Further, when the head is rotated in the direction of the arrow R1 to the vicinity of the middle position of the rotation, the radius of the presser portion 17 gradually decreases, and the actuator 12a and the presser portion 17 are separated.
[0038]
Next, as described above, when the base spring retaining hole 22a and the lever spring retaining hole 22b are aligned, the switch lever 14 is urged to rotate in the direction of the arrow R1 by the urging force of the over center spring 16. As a result, the switch lever 14 reaches the limit position shown in FIG. 4f and maintains this state. At this time, the upper contact piece 15a, which has been waiting in the lower direction, protrudes below the small piece 10 of the carrier plate and is disposed on the movement axis of the small piece 10, and the upper contact piece 15b obstructs the movement. Retreat to a position where it will not. At that time, the actuator portion 12 a enters the release portion 39. Then, the locking piece 18 comes into contact with the lower locking piece stop 20 to stop the rotation of the switch lever 14 (see FIG. 4f).
[0039]
Since the actuator 12a is in contact with the presser portion 17 at an approximately middle position of the rotation of the switch lever 14, the control unit 11 acting in this way can reliably operate the limit switch 12 by the rotation of the switch lever 14. Further, even if the switch lever 14 is rotated, the actuator 12a is locked by the locking piece 20 at the rotation end, so that no extra force is applied. Therefore, since the load due to the bias of the over center spring 16 is not directly applied to the limit switch 12, there is no fear of malfunction due to impact. Conversely, even if the spring constant of the over center spring 16 is increased in order to prevent the switch lever 14 from malfunctioning, the limit switch 14 is not affected. Further, since the actuator 12a is disposed inside the release portion 39, it is isolated from interference from the outside, and there are few malfunctions.
[0040]
  Another embodiment C of the first aspect is shown in FIG. Since this Embodiment C is substantially the same as Embodiment A of the 1st aspect shown in FIG. 1, the same code | symbol is attached | subjected about the same part and description is abbreviate | omitted. In the embodiment C, instead of the presser portion 17 (see FIG. 3), a presser protrusion 29 protrudes from the support rib 14b toward the fan-shaped portion 24b. The actuator portion 12a of the limit switch 12 is sandwiched between the support rib 14b and the fan-shaped portion 24b and is disposed so as to be substantially covered with the support rib 14b. The locking piece 18 is provided on the outer peripheral edge 24c. Further, the upper portion of the lower plate 24 forms a roof portion 23c from which a semicircular portion 23b of the upper plate 23 extends. The roof portion 23c is further bent vertically downward to support ribs of the lower plate 24.1It is continuous to 4b.
[0041]
The other embodiment C of the first aspect thus formed is substantially the same as the embodiment A of the first aspect described above, and the presser protrusion 29 operates in the same manner as the presser portion 17, and the limit switch 12 is operated. To operate. However, in this embodiment C, the actuator portion 12a and the presser protrusion 29 that contacts the actuator portion 12a are arranged so as to be covered with the inside of the support rib 14b. ing. Further, the locking piece 18 provided on the outer peripheral edge 24 c locks the contact arm 14 c and locks the rotation of the switch lever 14. Further, the roof 23c formed by extending the upper plate 23 provided above the lower plate 24 covers the upper portion of the surface of the lower plate 24 on the side where the limit switch 12 is provided, and interferes from above. As the window glass 4 is opened and closed, the limit switch 12 and the like are isolated from invading dust and rainwater.
[0042]
As shown in FIGS. 6 and 7, the detection mechanism of the embodiment B of the second aspect of the present invention roughly includes a pin guide 31 provided on the carrier plate 1 of the window regulator, and a detection attached to the guide rail 3. Part 30, a control part 49, and a limit switch 50 are provided. The detection unit 30, the control unit 49, and the limit switch 50 are attached to a plate-like base 2 b fixed to the guide rail 3. The base 2b is fixed by spot welding or the like above the guide rail 3, for example, at a position about 1/2 to 1/5 of the length from the upper end of the guide rail 3.
[0043]
The detection unit 30 includes a detection lever 33 that is swingably supported by a detection lever shaft 54 with respect to the base 2b, and a pin 32 that protrudes in the vicinity of the tip of the detection lever 33 at a right angle to the swing surface. And a return spring 34 that constantly biases the detection lever 33 toward the center position of the swing. The detection lever 33 has a U-shaped cross section composed of a thin rectangular bottom wall and two side walls 56 rising from both side ends of the bottom wall. As shown in detail in FIG. 8, the side wall 56 of the detection lever 33 is extended to the base side, and the base end of the left side wall 56b is curved outward to form the first pressing portion 36b. The base end of the right side wall 56a extends straight to form a second pressing portion 36a.
[0044]
The return spring 34 includes a coil portion 34c mounted around the detection lever shaft 54, and arm portions 34a and 34b extending from the coil portion 34c in parallel to each other. The base 2b is fixed with a spring stopper 35 disposed between both arm portions 34a and 34b. The detection lever 33 is provided with a locking piece 32a interposed between both arm portions. In Embodiment B of the second aspect, the pin 32 and the locking piece 32a are provided concentrically. The distal end side of the detection lever 33 protrudes from the end of the base 2b so that the movement of the pin 32 is not obstructed, and the base end of the detection lever 33 with the U-shaped opening side facing up (the side opposite to the base) Is pivotally supported by the base 2b by the shaft 54. The detection lever shaft 54 rotatably supports the coil portion 34c of the return spring 34. The spring stopper 35 is disposed and fixed on the surface of the base 2b opposite to the detection lever 33.
[0045]
When the detection lever 33 configured as described above is rotated in the direction of the arrow R2 in FIG. 8 (counterclockwise direction), the left arm portion 34b of the return spring 34 is also rotated together. However, since the other arm portion 34a is stopped by the spring stopper 35, both arm portions 34a and 34b are elastically deformed so as to expand. The detection lever 33 is pushed rightward (clockwise) by the left arm 34b and tries to return to the original position (hereinafter referred to as the center position). Conversely, even when the detection lever 33 is rotated in the direction of the arrow L2 in FIG. 8, the opposite arm 34a similarly attempts to return the detection lever 33 to the center position. In this way, the return spring 34 acts as a center return spring that always returns the detection lever 33 to the center position, regardless of which direction the detection lever 33 rotates.
[0046]
As shown in FIG. 9 a, the pin guide 31 is formed integrally with the carrier plate 1 and has a thick plate shape that is provided obliquely with respect to the moving direction of the carrier plate 1. The pin guide 31 includes contact surfaces 37a and 37b formed by the upper plate and the lower plate, and a standing wall 38a that is bent so as to be parallel to the moving direction of the carrier plate 1 at a predetermined angle from one end thereof. The other end is provided with a notch 38b cut off at an angle parallel to the standing wall 38a.
[0047]
The positional relationship between the pin guide 31 and the detection unit 30 is a position where the pin 32 of the detection unit 30 contacts the pin guide 31 of the carrier plate 1 when the carrier plate 1 moves up and down along the guide rail 3. More specifically, when the carrier plate 1 is lowered, the pin 32 abuts on the right side of the lower abutment surface 37b of the pin guide 31, and from the center of the abutment surface 37a on the upper side of the pin guide 31 when ascending. The positional relationship is such that it abuts on the right side. The angle between the contact surfaces 37a and 37b of the pin guide 31 is 5 to 40 degrees, preferably 15 to 30 degrees, and more preferably 20 to 25, formed by the upper contact surface 37 and the axis of vertical movement. Arrange them so that they are at an angle of degrees.
[0048]
Next, the operation of the detection unit 30 will be described with reference to FIGS. The pin guide 31 of the carrier plate 1 and the detection lever 33 attached to the guide rail 3 face each other at a position slightly deviated from the center position in the longitudinal direction of the pin guide 31 toward the notch 38b as shown in FIG. Yes. When the carrier plate 1 descends from above, the pin guide 31 descends and approaches the pin 32 (FIG. 10b). When the pin 32 is further lowered, when the pin 32 comes into contact with the inclined pin guide 31, the entire abutting surface 37b moves relatively obliquely from below to above (FIG. 10c). Accordingly, the detection lever 33 fixing the pin 32 swings in the L2 direction against the urging force of the return spring 34 around the detection lever shaft 54 attached to the base b2. After the pin 32 passes through the pin guide 31 (FIGS. 10D to 10E), the detection lever 33 is returned to the center position by the urging force of the return spring 34. At that time, since the standing wall 38a is present, the pin 32 is kept swinging to the left until it exceeds the upper end of the standing wall 38a.
[0049]
Next, when the carrier plate 1 rises from below, the pin guide 31 rises and approaches the pin 32 (FIG. 10f). At this time, the pin 32 contacts substantially at the center of the contact surface 37a of the pin guide 31 (FIG. 10g) and moves relatively obliquely downward therefrom (FIG. 10h). The detection lever 33 fixing the pin 32 swings in the R2 direction against the urging force of the return spring 34 around the detection lever shaft 54 (FIGS. 10h to 10i). At this time, the detection lever 33 tries to return to the center position by the urging force of the return spring 34 (FIGS. 10g to h). After the pin 32 passes through the pin guide 31 (FIG. 10 i), the detection lever 33 is returned to the center position by the urging force of the return spring 34.
[0050]
Next, the control unit 49 will be described in detail with reference to FIG. 9B. The control unit 49 includes a control lever 40 pivotally attached to the base 2b by a control lever shaft 55, and an over center spring 42 that urges the control lever 40 to rotate at a neutral position. The control lever 40 is a plate-like member made of a metal plate or the like, and in the vicinity of the control lever shaft 55, a pressed portion 47 pressed by the pressing portions 36a and 36b of the detection unit 30 is raised by bending. ing. Below the pressed portion 47, a limit switch presser 45 for pressing the actuator of the limit switch 50 is also provided by bending. Further, on the right side, a swinging portion 48 that locks the over-center spring 42 extends, and a locking piece 44 is formed at the tip of the swinging portion 48 by bending. The base 2b is formed with an arc-shaped groove 46 that allows the locking piece 44 to pass therethrough and restricts the limit of swinging of the control lever. The control lever may be a synthetic resin.
[0051]
In the embodiment B of the second aspect, a torsion coil spring is employed as the overcenter spring 42, and the tip of one arm is bent upward and locked in a spring stop hole 43 formed in the swinging portion 48. The tip of the other arm is bent downward and locked in a spring locking hole 41 formed in the base 2b. The overcenter spring 42 is supported by locking the tips of both arms, and the coil is not supported. The over center spring 42 is repelled in the direction in which the angles of both arms are opened, thereby causing the spring stop hole 43 of the control lever 40 and the spring stop hole 41 of the base 2b to be pulled away from each other. Energize to.
[0052]
Therefore, when the control lever shaft 55 of the control lever 40, the spring stop hole 43, and the spring locking hole 41 are aligned in a straight line, the control lever 40 continues to rotate even slightly below it. The control lever 40 is urged to rotate in the clockwise direction in that direction. Conversely, when the spring stop hole 41 moves upward beyond the straight line, the control lever 40 is urged counterclockwise. Thereby, an effect as an over center spring is exhibited.
[0053]
When the detection lever 33 swings in the direction of the arrow L2 in FIG. 6 and reaches the vicinity of the rotation end thereof, the control unit 49 configured in this way is pushed rightward by the left pressing unit 36a. Then, the control lever 40 rotates in the direction of arrow R3. When the above three points are aligned, the control lever 40 is further urged to rotate in the direction of the arrow R3 by the urging force of the over center spring 42. As a result, the control lever 40 reaches the limit position of the imaginary line and maintains that state. On the other hand, when the detection lever 33 rotates in the direction of the arrow R2 in FIG. 6 and the right pressing portion 36b presses the pressed portion 47 to the left, the control lever 40 rotates in the L3 direction, and the position of the original solid line Return to and maintain that state.
[0054]
Next, the operation of the detection lever 33 and the control lever 40 will be described in detail with reference to FIGS. In FIG. 11a, the pressed portion 47 is in the middle of the two pressing portions 36 of the detection lever 33 at the center position (FIG. 11a). When the carrier plate 1 descends from above, the pin guide 31 approaches the pin 32 as described above, and the detection lever 33 swings in the direction of the arrow L2 (FIG. 11b). Then, after rotating to some extent, the pressing portion 36a of the detection lever 33 presses the pressed portion 47 of the control lever 40, and the control lever 40 rotates in the direction of arrow R3. FIG. 11c shows a state in which the control lever 40 is rotated, further oscillated and biased by the over center spring 42, and pushed to the limit position in the arrow R3 direction. Thereafter, the detection lever 33 is returned to the center position by the return spring 34 (FIG. 11d). When the control lever 40 is pushed to the limit position, the limit switch presser 45 fixed to the control lever swings and pushes the actuator of the limit switch 50 as a transmission means. It is transmitted to the seat.
[0055]
When the window glass rises, the pin guide 31 approaches the pin 32 and the detection lever 33 swings in the direction of the arrow R2 (FIGS. 11e to f). Next, the pressing portion 36b of the detection lever 33 presses the pressed portion 47 of the control lever 40, and the control lever 40 rotates in the arrow L3 direction. FIG. 11g shows a state in which the control lever 40 is rotated, oscillated and urged by the over center spring 42, and pushed to the limit position in the direction of the arrow L3. Thereafter, the detection lever 33 is returned to the center position by the return spring 34 (FIG. 11h). When the control lever 40 rotates to the limit position, the limit switch presser 45 presses the actuator of the limit switch 50.
[0056]
In Embodiment B of the second aspect, when the window glass is lowered, the pressed portion 47 disposed in the middle of the two pressing portions 36a and 36b of the detection lever 33 (the limit position in the L3 direction when the limit switch is OFF) is The detection lever 33 is pushed to the right side by the swing in the L2 direction. At this time, in order to press the pressed portion 47 disposed at the intermediate position, the detection lever 33 must be largely swung in the L2 direction and pressed. For this reason, the malfunction in this part is suppressed and the reliable operation | movement of this mechanism is ensured. Further, the pressing portion 36b is made longer than the pressing portion 36a by an amount corresponding to the small swing of the detection lever 33 in the R2 direction, thereby increasing the swing stroke.
[0057]
  Further, in Embodiment B of the second aspect, the pin guide 31 is integrally formed with the carrier plate 1, but the pin guide 31 can be formed separately from the carrier plate 1 to change the mounting angle and the vertical position. You may do it. In the case where the angle and length of the pin guide 31 can be changed, the sensitivity of the elevation detection can be easily adjusted. When the inclination of the pin guide 31 is increased or the length thereof is shortened, the swinging width of the pin 32 is increased with respect to the moving distance of the pin guide 31, and therefore the elevation detection becomes sensitive. On the contrary, when the inclination is reduced or the length is increased, the swinging width of the detection lever 33 becomes smaller with respect to the movement distance of the pin guide 31, and the elevation detection is slow.KunaThe
[0058]
In the first and second embodiments, the carrier plate 1 is provided with the small piece 10 and the pin guide 31, and the guide rail 3 is provided with the detection unit 30 and the control units 11 and 49. Even if the detection unit 30 and the control units 11 and 49 are provided on the base 2, and the small piece 10 and the pin guide 31 are provided on the base 2, the same effect can be obtained. However, since there is a limit switch wiring, it is preferable to provide the small piece 10 and the pin guide 31 on the carrier plate 1 side.
[0059]
In addition, torsion coil springs are used for the return spring 34 of the detection lever and the over center springs 16 and 42 of the switch lever 14 and the control lever 40, but a tension coil spring, a leaf spring, Other types of springs such as wire springs may be used. Furthermore, it is preferable that the small piece 10 and the pin 32 have a shape in which corners such as a cylinder, a disk, and a sphere are dropped in order to reduce the contact surface between the contact piece 15 and the pin guide 31 and improve the sliding performance. Further, a roller may be used. Further, the end portions of the contact piece 15 and the pin guide 31 may be rounded by dropping corners so that the small piece 10 and the pin 32 can be easily removed.
[0060]
Further, the contact portion between the contact piece 15 and the small piece 10 or the pin 32 and the pin guide 31 or the contact portion between the pressing portion 36 and the pressed portion 47 is covered with a synthetic resin coating in order to ensure smooth sliding. May be. Furthermore, considering the wear of the coating due to friction, the structure can be replaced. In that case, it can be carried out by a method in which attachment means such as bonding, covering or notching is provided, and attachment is made to a portion where sliding friction is desired to be improved. Further, the presser portion 17, the presser protrusion 29 and the limit switch presser 45 may also be provided with synthetic resin as a role of a cushion for contact with the limit switches 12 and 50. Further, when the angles of the presser portion 17, the presser protrusion 29, and the limit switch presser 45 can be changed, the angles can be changed for contact adjustment with the limit switch.
[0061]
In the embodiment, the limit switches 12 and 50 are used to detect the positions of the switch lever 14 and the control lever 40, but other types of switches such as a photo sensor and a magnetic sensor can also be used.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a first aspect of a window glass detection mechanism of the present invention.
FIG. 2 is a front view of a window regulator provided with the detection mechanism.
FIG. 3 is a perspective view of a principal part of FIG.
FIG. 4 is a schematic process diagram showing the operation of the control unit.
FIG. 5 is a diagram showing another embodiment of the first aspect.
FIG. 6 is a front view showing an embodiment of the second aspect of the window glass detection mechanism of the present invention.
7 is a perspective view of a main part of FIG.
FIG. 8 is a rear view of the detection unit of FIG. 6;
9A is a perspective view showing the pin guide of FIG. 6, and FIG. 9B is a perspective view showing the control unit of FIG.
FIGS. 10a to 10j are schematic process diagrams showing the operation of the detection unit.
11a to 11h are schematic process diagrams showing the operation of the control unit.
12A is a front view showing an example of a conventional window glass position detection mechanism, and FIG. 12B is a front view showing an example of a window regulator equipped with the detection mechanism.
[Explanation of symbols]
A Embodiment of the first aspect
B Embodiment of the second aspect
C Other embodiments of the first aspect
P1 pull cable
P2 pull cable
1 Carrier plate
2a base
2b base
3 Guide rail
4 Window glass
5 drums
6 Drive motor
7 Pulley
8 cases
9 Conduit
10 small pieces
11 Control section
12 Limit switch
12a Actuator part
13 Switch shaft
14 Switch lever
14a center
14b Support rib
14c Contact arm
14d Stopper arm
15a Contact piece
15b Contact piece
16 Over center spring
17 Presser part
18 Locking piece
19 Notch
20 Locking piece
21 Locking piece bracket
22a Base spring retaining hole
22b Lever spring retaining hole
23 Upper plate
23a base
23b Semicircular part
23c roof
24 Lower plate
24a center
24b Fan
24c outer periphery
25 hanging wall
26 opening
27 Wall
28 Bracket
29 Presser projection
30 detector
31 pin guide
32 pins
32a Locking piece
33 Detection lever
34 Return spring
34a Return spring arm
34b Return spring arm
34c Return spring coil
35 Spring stopper
36a Pressing part a
36b Pressing part b
37a Contact surface
37b Contact surface
38a Standing wall
38b Notch
39 Release part
40 Control lever
41 Spring locking hole
42 Over center spring
43 Spring hole
44 Locking piece
45 Limit switch presser foot
46 Groove
47 Pressed part
48 Oscillating part
49 Control section
50 limit switch
52a Pin guide upper part a
52b Pin guide upper part b
53a Pin guide lower part a
53b Pin guide lower part b
54 Detection lever shaft
55 Control lever shaft
56a side wall
56b side wall
100 window regulator
101 guide rail
102 Slider base
103 cable
104 drums
105 Window glass
106 Window glass position detection mechanism
107a pressing member
107b Pressing member
108 base
109 axes
110 Control lever
111 Over center coil
112 Inner wire
113a Upper arm
113b Lower arm
114 Outer casing
115a Upper limit stopper
115b Lower limit stopper
M motor

Claims (6)

A small piece that moves as the window glass opens and closes;
A base arranged in the passing range of the small piece,
The base is provided so as to be rotatable between the rotating ends, and at one end thereof, one abutting piece comes into the passing range of the small piece at one rotating end and the other abutting piece is out of the passing range, A control lever provided with a pair of contact pieces at which the other contact piece comes into the passage range of the small piece at the other rotation end and the one contact piece is out of the passage range;
An over center spring that urges the control lever to rotate toward the rotation end with the neutral position as a boundary;
A presser part provided on the control lever;
It consists of a limit switch provided on the base that operates by pressing or not pressing the presser part,
When the small piece moves in one direction, the pair of contact pieces rotate the control lever in one direction until the small piece pushes one of the contact pieces in the passing range until the neutral position is exceeded,
When the small piece moves in the other direction, the small piece pushes the other abutment piece in the passing range to rotate the control lever in the other direction until the neutral position is exceeded,
A window glass opening / closing detection mechanism in which a position where the pressing portion switches between pressing and not pressing the limit switch is a neutral position of rotation of the control lever.   The window glass opening / closing detection mechanism according to claim 1, wherein the pressing portion protrudes from a fan-shaped support rib provided on the opposite side to the contact piece across the movable center of the control lever. The base is an upper plate;
A vertical wall extending vertically from one end of the upper plate,
A lower plate extending vertically outward from the lower end of the vertical wall;
An opening provided in the hanging wall,
3. The window glass opening / closing detection mechanism according to claim 1, wherein tips of the pair of contact pieces protrude from the opening and are covered with the upper plate or the lower plate and the hanging wall. A pin guide that moves as the window glass opens and closes;
A base arranged in the passing range of the pin guide;
A detection lever rotatably provided on the base;
A pin provided at the tip of the detection lever and cooperating with the pin guide;
A detection unit comprising an over center spring that elastically biases the detection lever toward the neutral position;
The base is provided so as to be rotatable, and when the detection lever is rotated to one side, it is rotated to one side to hold its position, and when the detection lever is rotated to the other side, the detection lever is rotated to the other side. A control lever to maintain its position;
It consists of a limit switch that operates according to the rotation position of the control lever;
When the pin guide moves in one direction, the pin guide pushes the pin to rotate the detection lever in the first direction, and after the pin guide passes the position of the pin, the detection lever returns to the neutral position. ,
When the pin guide moves in the other direction, the pin guide pushes the pin to rotate the detection lever in the second direction, and after the pin guide passes the pin position, the detection lever returns to the neutral position. The window glass opening / closing detection mechanism configured as described above.   5. The pin guide has a thick plate shape, and has upper and lower plates with contact surfaces, and the contact surfaces are provided obliquely with respect to the moving direction of the pin. The window glass opening / closing detection mechanism described. A pair of left and right pressing portions are provided at the base end of the detection lever,
The control lever is biased by an over center spring that biases rotation toward the rotation end with the neutral position as a boundary,
The window glass opening / closing detection mechanism according to claim 4 or 5, wherein pressed portions provided at one end of the control lever are alternately pressed by a pair of pressing portions of the detection lever.

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