JP2011105139A - Window regulator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a window regulator device wherein a window glass is completely closed at a full close position and detection accuracy of glass breakage is excellent. <P>SOLUTION: A driving force transmission spring 62 is mounted on a second housing 82 via a worm wheel 61. Thus, the driving force transmission spring 62 is deformed and restored in the second housing 82. The deformation and restoration of the driving force transmission spring 62 in the second housing 82 are observed as displacement for the second housing 82. This displacement is detected by a detection switch 66 attached to the same housing (the second housing 82). In other words, a displacement area of a detection object and a position of a detection member are determined with the same housing (the second housing 82) as a reference. Thus, positional relationship of the displacement area of the detection object and the detection member is never misaligned. Hence, glass breakage is accurately detected based on detection by the detection switch 66. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a window regulator device that opens and closes a window glass of a vehicle by power such as an electric motor or manual operation, and more particularly to a window regulator device having a function of detecting a break (glass breakage) of a window glass.

  2. Description of the Related Art A window regulator device having a function of detecting breakage of a window glass of a vehicle, particularly a window glass that can be opened and closed is known. For example, Patent Document 1 discloses a glass support member that supports a window glass that can be opened and closed, a drive mechanism that drives the glass support member in the opening and closing direction of the window glass, and a window glass opening and closing position that is a fully closed position. A regulating member that regulates further movement in the closing direction, a biasing member that biases the glass supporting member in the closing direction of the window glass when the open / close position of the window glass is the fully closed position, and a glass supporting member The window regulator apparatus provided with the detection member which detects the displacement of this is disclosed. According to this window regulator device, when a glass breakage occurs, the restriction of the window glass by the restriction member is released, so that the glass support member is displaced in the closing direction from the fully closed position by the biasing member. By detecting such a displacement of the glass support member by the detection member, glass breakage is detected.

Japanese Patent No. 3531474

(Problems to be solved by the invention)
According to Patent Document 1 described above, a glass break that occurs when the open / close position of the window glass is a fully closed position is detected based on the displacement of the glass support member caused by the glass break. The displacement is a minute displacement created by the elastic force of a spring, for example. Therefore, in order to accurately detect a glass crack based on this minute displacement, there is a shift in the relationship between the displacement region of the glass support member accompanying the glass crack and the position of the detection member that detects the displacement of the glass support member. Less is preferable.

  In order to reduce the above-described deviation in the relationship, in Patent Document 1, the glass support member is attached to the door panel via the window glass and the regulating member (stopper pin 24 and locking portion 25), and the detection member is also attached to the door panel. ing. That is, the relationship between the position of the detection member and the displacement region of the glass support member that is the detection target is determined based on the same member. For this reason, the deviation of the above relationship is small. Therefore, the detection accuracy of glass breakage is kept good.

  However, when the displacement region of the glass support member is determined based on the door panel, the fully closed position of the window glass supported by the glass support member is also determined based on the door panel. In this case, the window glass cannot be completely closed due to variations in the assembly of the door panel and the window frame. In addition, due to the secular change in the positional relationship between the door panel and the window frame, the window glass may be completely closed at the beginning, but may eventually fail to close. When the window glass cannot be completely closed, for example, rainwater enters the passenger compartment when it rains. In other words, it interferes with the original function of the window glass.

  On the other hand, when the fully closed position of the window glass is determined based on the contact between the window glass and the window frame, the window glass is securely closed at the fully closed position. In this case, however, the displacement region of the glass support member when the window glass is in the fully closed position is determined with reference to the window frame, whereas the attachment position of the detection member is determined with reference to the door panel. In other words, the position of the detection member and the displacement area of the detection target are determined based on different members. For this reason, there is a high possibility that the relationship between the position of the detection member and the displacement area of the detection target varies due to a mounting error between the window frame and the door panel, a secular change in the positional relationship between the window frame and the door panel, or the like. As a result, the detection accuracy of glass breakage deteriorates.

  That is, in the conventional window regulator device, it is difficult to satisfy both of the fact that the window glass is completely closed at the fully closed position and that the detection accuracy of the glass breakage by the detection member is kept good.

  The present invention has been made to solve the above problem, and an object of the present invention is to provide a window regulator device in which the window glass is completely closed at the fully closed position and the glass cracking detection accuracy is good.

(Means for solving the problem)
A feature of the window regulator device of the present invention is a window regulator device that opens and closes a window glass of a vehicle. An opening / closing mechanism that opens and closes the window glass by transmitting a driving force, and is interposed between the driving mechanism and the opening / closing mechanism, and transmits the driving force of the driving mechanism to the opening / closing mechanism, and the window When the window glass hits the window frame during the closing operation of the glass, it is deformed by the driving force transmitted from the driving mechanism, and when the window glass is in a state of hitting the window frame, glass breakage occurs. An elastic member in which the deformation is restored, and compression and deformation of the elastic member are detected That the detecting member is to comprise a housing in which the elastic member and the detection member is attached to the inside, the.

  According to the above invention, when the window glass hits the window frame during the closing operation of the window glass, the window glass cannot be closed any further and the operation in the closing direction is stopped, so the opening / closing mechanism connected to the window glass. Is also regulated. On the other hand, since the driving mechanism generates a driving force, the elastic member interposed between the driving mechanism and the opening / closing mechanism is deformed (compressed or expanded) by the driving force of the driving mechanism. The detection member detects the deformation of the elastic member. When the deformation of the elastic member is detected by the detection member, the fully closed position of the window glass is detected. That is, the fully closed position of the window glass is determined by the abutment between the window glass and the window frame.

  In addition, when the glass window breaks when the open / close position of the window glass is a fully closed position determined by the abutment with the window frame, the abutment between the window glass and the window frame is eliminated. The operation restriction is released. Therefore, the opening / closing mechanism is operated by the restoring force of the elastic member interposed between the drive mechanism and the opening / closing mechanism, and the deformation of the elastic member is restored. The detection member detects the restoration of the elastic member. Glass breakage is detected when the elastic member is detected by the detection member.

  Further, the elastic member and the detection member are integrally attached in the housing. Since the elastic member is attached to the housing, the elastic member is deformed and restored in the housing. The deformation and restoration of the elastic member in the housing is observed as a displacement with respect to the housing. The deformation and restoration of the elastic member, which is displacement with respect to the housing, is detected by a detection member attached to the same housing. That is, the displacement area of the detection target and the position of the detection member are determined based on the same housing. Therefore, the relationship between the displacement area of the detection target and the position of the detection member does not shift due to the difference in the member to which they are attached. Therefore, the glass breakage is detected with high accuracy by the detection member.

  Thus, according to the window regulator device of the present invention, since the fully closed position of the window glass is determined by abutment between the window glass and the window frame, the window glass can be reliably closed at the fully closed position. . In addition, since the displacement region of the detection target and the position of the detection member are determined with reference to the housing, the detection accuracy of the glass breakage by the detection member is also kept good.

  The detection target to be detected by the detection member may be the elastic member itself as long as the detection member eventually detects the deformation and restoration of the elastic member in the housing, and the deformation and restoration of the elastic member. Accordingly, the movable member may be movable within the housing. That is, the relationship between the displacement area of the detection target and the position of the detection member only needs to be determined based on the same housing.

  A drive mechanism and / or an opening / closing mechanism may be assembled to the housing. In particular, when the drive mechanism is integrally attached to the housing, the window regulator device can be made compact.

  Further, since the elastic member has a function of transmitting the driving force of the driving mechanism to the opening / closing mechanism, the elastic member may be driven by the driving force of the driving mechanism during the opening / closing operation of the window glass. In this case, during the opening / closing operation of the window glass, the elastic member may drive the inside of the housing by the driving force of the driving mechanism (for example, rotational driving) and transmit the driving force to the opening / closing mechanism.

  Further, the elastic member may not be directly attached to the housing. For example, when the drive mechanism is fixed to the housing, an elastic member may be attached in the drive mechanism. That is, the detection target including the elastic member may be attached to the housing via the intermediate member attached to the housing.

  The elastic member may be any material such as rubber, resin, or spring as long as it is elastically deformed. Further, the deformation mode may be compression deformation or expansion deformation. The deformation of the elastic member refers to a deformation from the standard shape when the shape of the elastic member when the window glass does not hit the window frame is a standard shape, and does not necessarily mean a deformation from a natural state.

  The drive mechanism includes an electric motor and a gear mechanism that is connected to the electric motor and transmits a rotational driving force of the electric motor to the elastic member, and the housing includes a gear box that houses the gear mechanism. The elastic member and the detection member may be disposed in the gear box. According to this, since the elastic member and the detection member are built in the gear box that houses the gear mechanism that constitutes a part of the drive mechanism, glass breakage can be detected regardless of the opening / closing method of the opening / closing mechanism. . Therefore, the present invention can be applied to various open / close type window regulator devices (for example, X-arm type or cable type window regulator devices).

  The gear mechanism has a reduction gear that is rotatably attached to the housing and decelerates the rotation of the electric motor, and the opening / closing mechanism is rotatably attached to the housing and is driven to rotate the reduction gear. An output gear that rotates when force is transmitted through the elastic member, and the detection member detects a change in a rotational phase difference between the reduction gear and the output gear, thereby It is preferable to detect deformation and restoration.

According to this, when the opening / closing position of the window glass reaches the fully closed position during the closing operation of the window glass, the output gear of the opening / closing mechanism stops rotating due to abutment between the window glass and the window frame, The reduction gear continues to rotate. For this reason, the elastic member is deformed by the rotational driving force of the reduction gear, and the reduction gear rotates relative to the output gear in accordance with the deformation, thereby generating a rotational phase difference between the reduction gear and the output gear. That is, the rotational phase difference between the reduction gear and the output gear changes before and after the deformation of the elastic member. The detection member detects a change in rotational phase difference between the reduction gear and the output gear that is generated as the elastic member is deformed. Thereby, the deformation of the elastic member is reliably detected.

  In addition, when glass breakage occurs when the open / close position of the window glass is the fully closed position, the abutment between the window glass and the window frame is eliminated, so that the deformation of the elastic member is restored and its restoring force is restored. The output gear rotates relative to the reduction gear so as to cancel the rotational phase difference. That is, the rotational phase difference between the reduction gear and the output gear changes before and after the elastic member is restored. The detection member detects a change in the rotational phase difference between the reduction gear and the output gear that is generated when the elastic member is restored. Thereby, the restoration of the elastic member is reliably detected.

  The window regulator device according to the present invention is a displacement plate that is attached to the housing so as to be reciprocally movable and is displaced in the reciprocating direction when a change in rotational phase difference between the reduction gear and the output gear occurs. It is good to have. The detecting member may detect a change in rotational phase difference between the reduction gear and the output gear by detecting a displacement of the displacement plate. In this case, the direction in which the displacement plate reciprocates may be the axial direction of the reduction gear. The displacement plate may be attached to the output gear so as to rotate integrally with the output gear.

  According to this, the displacement plate is displaced in a predetermined direction (reciprocating direction) based on a change in rotational phase difference between the reduction gear and the output gear. Further, since the displacement plate is attached to the housing so as to be reciprocally movable, the displacement plate is displaced with respect to the housing. In other words, a change in the rotational phase difference between the reduction gear and the output gear that occurs with the deformation and restoration of the elastic member is represented as a change in the displacement plate relative to the housing. By detecting the displacement of the displacement plate with respect to the housing by a detection member attached to the same housing, the rotational position of the reduction gear and the output gear is whatever the rotational position of the reduction gear and the output gear. The phase difference is reliably detected.

  Another feature of the window regulator device of the present invention is that in the window regulator device for opening and closing the window glass of the vehicle, a drive mechanism that generates driving force by electric or manual operation, and a carrier plate connected to the window glass of the vehicle, A rail member formed with a guide rail for guiding the carrier plate so that the carrier plate is movable in the opening and closing direction of the window glass, a movable pulley attached to the rail member so as to be movable, and the movable A driving force generated by the driving mechanism is arranged so that the driving mechanism is connected to the carrier plate by the pulley and the carrier plate moves in the opening / closing direction of the window glass along the guide rail. Transmit to the carrier plate And a cable attached to the rail member, elastically supporting the movable pulley, and transmitted through the movable pulley when the window glass hits a window frame during the closing operation of the window glass. An elastic member that is deformed by tension and is restored to the deformation when glass breakage occurs when the window glass is in contact with the window frame, and is attached to the rail member, and the deformation of the elastic member and the And a detection member that detects the movement of the movable pulley relative to the rail member accompanying the restoration.

  According to the above invention, when the window glass hits the window frame during the closing operation of the window glass, the window glass cannot be closed any further, so that the movement of the carrier plate connected to the window glass is restricted. On the other hand, since the driving mechanism generates driving force, tension is generated in the cable connecting the driving mechanism and the carrier plate by this driving force. This tension is transmitted to the elastic member via the movable pulley. The elastic member is deformed by this tension. Further, as the elastic member is deformed, the movable pulley elastically supported by the elastic member moves. The detection member detects the movement of the movable pulley accompanying the deformation of the elastic member. When the detection member detects the movement of the movable pulley accompanying the deformation of the elastic member, the fully closed position of the window glass is detected. That is, the fully closed position of the window glass is determined by the abutment between the window glass and the window frame.

  Also, when the glass window breaks when the open / close position of the window glass is a fully closed position determined by abutment with the window frame, the abutment between the window glass and the window frame is eliminated. Movement restrictions are lifted. For this reason, the carrier plate moves, and the tension of the cable connecting the drive mechanism and the carrier plate decreases (or disappears). As the tension decreases, the deformation of the elastic member is restored. The movable pulley moves as the deformation is restored. The detection member detects the movement of the movable pulley accompanying the restoration of the elastic member. A glass break is detected when the detection member detects the movement of the movable pulley accompanying the restoration of the elastic member.

  The elastic member and the detection member are attached to the rail member. Since the elastic member is attached to the rail member, the elastic member is deformed and restored in the rail member. For this reason, the movable pulley moves relative to the rail member as the elastic member is deformed and restored. Such movement relative to the rail member is detected by a detection member attached to the same rail member. That is, the movement area (displacement area) of the detection target and the position of the detection member are determined based on the same rail member. Therefore, the glass crack detection accuracy by the detection member is improved.

  Thus, according to the window regulator device of the present invention, since the fully closed position of the window glass is determined by abutment between the window glass and the window frame, the window glass can be reliably closed at the fully closed position. . In addition, since the displacement region of the detection target and the position of the detection member are determined based on the rail member, the detection accuracy of the glass breakage is also kept good.

It is a front view which shows the whole structure of the window regulator apparatus which concerns on 1st Embodiment. It is a disassembled perspective view of the various components accommodated in a housing. It is a side schematic diagram of a detection switch. It is a front view which shows the assembly | attachment state of the various components in a 2nd housing. It is a side view showing the arrangement relationship between a worm wheel and a vertical displacement plate. It is a front view which shows the assembly | attachment state of the various components in a 2nd housing when a driving force transmission spring is compressively deformed. It is a side view showing the arrangement | positioning relationship of a worm wheel and an up-and-down displacement plate when a mutual protrusion piece interferes. It is a front view which shows the assembly | attachment state of the various components in a 2nd housing when a driving force transmission spring restore | restores. It is a side view showing the arrangement | positioning relationship between a worm wheel and a vertical displacement plate at the time of a glass break. It is a front view which shows the whole structure of the window regulator apparatus which concerns on 2nd Embodiment. It is the A section detail drawing of FIG. It is a fragmentary sectional view of the BB line of FIG. It is detail drawing of a movable pulley and detection switch vicinity when a pulley support member is displaced below. It is a fragmentary sectional view of the CC line of FIG.

(First embodiment)
The first embodiment of the present invention will be described below. FIG. 1 is a front view showing the overall configuration of the window regulator device according to the present embodiment. This window regulator device is an X-arm type window regulator device that opens and closes a window glass provided in a side window of a vehicle. As shown in FIG. 1, the window regulator device includes an electric motor 2, an output shaft 3, a driving force transmission device 9, a housing 8 connected to the electric motor 2, and various components housed in the housing 8. Prepare. The electric motor 2 is electrically connected to a power source such as an in-vehicle battery, for example, and generates a rotational driving force by supplying power from the power source. The output shaft 3 is rotated by the rotational driving force generated by the electric motor 2. The driving force transmission device 9 transmits the rotational driving force of the output shaft 3 to the window glass W so that the window glass W is opened and closed in the vertical direction indicated by the arrow in the figure by the rotational driving force of the output shaft 3.

  As shown in FIG. 1, the driving force transmission device 9 includes a fixed bracket 91, a sector gear 92, a lift arm 93, a first guide rail member 94, a second guide rail member 95, and an equalizer arm 96. The fixing bracket 91 is fixed to the door panel of the vehicle and supports the housing 8. The sector gear 92 includes an arcuate tooth portion 921 as shown in the figure, and is connected to the fixed bracket 91 so as to be rotatable by a pin 97 at the arc center of the tooth portion 921.

  The lift arm 93 is a long member and is tapered toward the tip. The lift arm 93 is fixed to the rotation center position of the sector gear 92 on the base end side. Accordingly, when the sector gear 92 rotates around the axis of the pin 97, the lift arm 93 also rotates in the same direction around the pin 97. A shoe 93 a is connected to the tip of the lift arm 93.

  The first guide rail member 94 is fixed substantially horizontally to the lower portion of the window glass W. A guide groove is formed in the first guide rail member 94 along its longitudinal direction. A shoe 93a is slidably disposed in the guide groove. The second guide rail member 95 is fixed to the door panel. A guide groove is also formed in the second guide rail member 95 along its longitudinal direction.

  The equalizer arm 96 includes a first arm 961 and a second arm 962. The first arm 961 and the second arm 962 are both long members. The base end sides of both arms are coupled in the vicinity of the approximate center of the lift arm 93. The first arm 961 and the second arm 962 are linearly fixed so as to have the same axis when viewed from the direction in the figure in the coupled state, and are connected to the lift arm 93 so as to be rotatable near the center of the lift arm 93. Is done. A shoe 961 a is connected to the tip of the first arm 961. The shoe 961 a is slidably disposed in the guide groove of the first guide rail member 94. A shoe is also connected to the tip of the second arm 962, and this shoe is slidably disposed in the guide groove of the second guide rail member 95. Therefore, the tip of the lift arm 93 and the tip of the first arm 961 are inserted into the guide groove of the first guide rail member 94, and the tip of the second arm 962 is inserted into the guide groove of the second guide rail member 95 via the shoe. Connected. Also, the arm dimensions are adjusted so that the first guide rail member 94 and the second guide rail member 95 are arranged in parallel.

  The output shaft 3 is rotatably supported by the housing 8. The output shaft 3 rotates upon receiving the rotational driving force of the electric motor 2. As will be described later, an output gear is formed on the output shaft 3, and this output gear meshes with a tooth portion 921 of the sector gear 92.

  In such a configuration, when the output shaft 3 rotates clockwise in FIG. 1, the rotation is transmitted to the sector gear 92, and the sector gear 92 rotates counterclockwise around the pin 97. Along with this, the lift arm 93 also rotates counterclockwise around the pin 97. When the lift arm 93 rotates in the counterclockwise direction, the shoe 93a attached to the tip of the lift arm 93 draws an arcuate locus as indicated by a one-dot chain line in the drawing, so that the shoe 93a becomes the first guide rail member. The first guide rail member 94 moves upward while sliding in the guide groove 94. Accordingly, the window glass W moves upward. That is, the window glass W is operated in the closing direction (closing operation). When the window glass W is closed, the equalizer arm 96 rotates to maintain the structural arrangement relationship between the lift arm 93, the first guide rail member 94, and the second guide rail member 95. As a result, the first guide rail member 94 rises while maintaining a parallel state with the second guide rail member 95.

  When the output shaft 3 rotates in the counterclockwise direction in FIG. 1, the sector gear 92 rotates in the clockwise direction around the pin 97. Along with this, the lift arm 93 also rotates clockwise about the pin 97. Accordingly, the shoe 93a slides in the guide groove of the first guide rail member 94 and the first guide rail member 94 moves downward. As the first guide rail member 94 moves downward, the window glass W also moves downward. That is, the window glass W operates in the opening direction (opening operation). When the window glass W is opened, the equalizer arm 96 rotates to maintain the structural arrangement relationship between the lift arm 93, the first guide rail member 94, and the second guide rail member 95. As a result, the first guide rail member 94 is lowered while maintaining a parallel state with the second guide rail member 95. In this way, the window glass W is opened and closed. In the figure, the open / close position of the window glass W indicated by a solid line is a fully closed position, and the open / close position of the window glass W indicated by a two-dot chain line is a fully open position.

  FIG. 2 is an exploded perspective view of the various components 6 housed in the housing 8. As shown in the figure, the electric motor 2 is connected to the housing 8 by fastening means (not shown). The housing 8 includes a first housing 81, a second housing 82, and a lid 83. The first housing 81 is formed in a long cylindrical shape in the axial direction, and a worm WG connected to the motor shaft of the electric motor 2 is housed inside. The worm WG rotates integrally with the motor shaft. The second housing 82 is adjacent to the side periphery of the first housing 81, has a cylindrical shape having an axis orthogonal to the cylindrical axis of the first housing 81, and has an upper end opened. The internal space of the first housing 81 and the internal space of the second housing 82 communicate with each other at adjacent portions of both housings. The first housing 81 and the second housing 82 correspond to the gear box of the present invention. The lid 83 is placed on the upper end opening of the second housing 82 and is fixed to the second housing 82 by fastening means (not shown).

  A cylindrical bearing portion 82 a is formed at the bottom center portion of the second housing 82. The output shaft 3 is inserted through the circular hole in the bearing portion 82a. The output shaft 3 enters the internal space of the second housing 82. The output shaft 3 has a distal end portion 31 and a proximal end portion 32, and an output gear 33, a shaft portion 34, and an engaging portion 35 are formed in this order from the proximal end portion 32 to the distal end portion 31. The output gear 33 meshes with the sector gear 92 of the driving force transmission device 9 as described above, and transmits the rotational driving force to the driving force transmission device 9. The engaging portion 35 is formed in a substantially cross-shaped cross section and is fitted to a driven plate 63 described later. The shaft portion 34, the engaging portion 35, and the tip portion 31 enter the internal space of the second housing 82. The tip 31 is inserted into a recess 83 a formed on the inner side surface of the lid 83 (the surface facing the inner space of the housing 8). As a result, the output shaft 3 is supported by the housing 8 so as to be rotatable but not movable in the axial direction.

  In the second housing 82, a worm wheel 61, a driving force transmission spring 62, a driven plate 63, a washer 64, a vertical displacement plate 65, a detection switch (detection member) 66, and a plate spring 67 are housed.

  The worm wheel 61 has a cylindrical shape and an outer peripheral wall portion 61a in which teeth (for example, helical teeth) are formed on the outer peripheral side, a cylindrical inner peripheral wall portion 61c in which a circular hole 61b is formed in the inner periphery, A ring-shaped bottom surface portion 61d that connects the lower end of the wall portion 61a and the lower end of the inner peripheral wall portion 61c is provided. The bearing portion 82a of the second housing 82 is fitted into the circular hole 61b, so that the worm wheel 61 is positioned and arranged in the second housing 82 so as to be rotatable. The output shaft 3 is inserted through the circular hole 61b. Further, the teeth formed on the outer peripheral wall 61 a mesh with the worm WG housed in the first housing 81. The worm wheel 61 and the worm WG constitute a gear mechanism. When the worm WG is rotated by the rotational drive of the electric motor 2, the rotation is transmitted to the worm wheel 61, and the worm wheel 61 rotates at a reduced speed with the output shaft 3 as the central axis. The worm wheel 61 corresponds to the reduction gear of the present invention.

  A locking portion 611 is formed in the worm wheel 61. The locking portion 611 is erected from the bottom surface portion 61d. The cross-sectional shape of the locking portion 611 is substantially fan-shaped as shown in the figure. A plurality (four in the present embodiment) of projecting pieces 612 that are convex along the circumferential direction are provided at equal intervals on the upper end surface of the outer peripheral wall 61a of the worm wheel 61. Each projecting piece 612 has an arc shape along the outer peripheral wall portion 61a, and all have the same shape.

  The driving force transmission spring 62 is disposed on the bottom surface portion 61 d of the worm wheel 61. The driving force transmission spring 62 is formed in an arc shape along the bottom surface portion 61d, and is locked to the locking portion 611 at one end thereof. This driving force transmission spring 62 corresponds to the elastic member of the present invention.

  The driven plate 63 has a substantially disk shape in which a part in the circumferential direction is cut into a fan shape, and has a large-diameter portion 63b having a large diameter and a small-diameter portion 63c having a small diameter with the cut portion as a boundary. . A cross-shaped through hole 63 a is formed at the center of the driven plate 63. The engaging portion 35 of the output shaft 3 is fitted into the cross-shaped through hole 63a. Thereby, the driven plate 63 is connected to the output shaft 3 so as to be integrally rotatable. The driven plate 63 is restricted from moving in the axial direction by a washer 64. The driven plate 63 having such a shape is coaxially disposed on the worm wheel 61 in the second housing 82. Further, a protruding piece 63d extending downward in the figure from one of the circumferential end portions (notched end portions) of the large diameter portion 63b is formed. The other end of the driving force transmission spring 62 disposed in the worm wheel 61 is locked to the protrusion 63d. Therefore, the driving force transmission spring 62 is locked to the locking portion 611 of the worm wheel 61 at one end and to the protruding piece 63d of the driven plate 63 at the other end. In addition, the large-diameter portion 63b of the driven plate 63 is formed with an arc-shaped long hole 63e extending along the circumferential direction as shown in the drawing.

  The vertical displacement plate 65 includes a stepped disk-shaped rotating plate 651 and a plurality of projecting pieces formed in a convex shape along the circumferential direction in the vicinity of the outer peripheral edge of the lower surface in the drawing of the rotating plate 651. 652. A circular hole through which the output shaft 3 is inserted is formed at the center of the rotating plate 651. In addition, a convex portion 651 a having a circular arc cross section is formed on the lower surface side of the rotating plate 651. The convex portion 651 a has a cross section having the same shape as the elongated hole 63 e formed in the driven plate 63. The vertical displacement plate 65 is coaxially mounted on the driven plate 63 so that the convex portion 651a is fitted into the long hole 63e. As a result, the vertical displacement plate 65 is connected to be reciprocally movable in the axial direction of the driven plate 63, and the vertical displacement plate 65, the driven plate 63, and the output shaft 3 connected to the driven plate 63 are connected. Rotates integrally.

  The plurality of protruding pieces 652 are provided along the circumferential direction of the rotating plate 651 so that the radial distance from the center of the rotating plate 651 is the same. Each projecting piece 652 has an arc shape along the circumferential direction of the rotating plate 651, and all have the same shape. The number of projecting pieces 652 is the same as the number of projecting pieces 612 formed on the outer peripheral wall 61a of the worm wheel 61 (four in this embodiment). The radial distance from the center of the rotating plate 651 to each protruding piece 652 is the same as the radial distance from the center of the worm wheel 61 to each protruding piece 612 formed on the outer peripheral wall portion 61a. Therefore, when the assembly of the vertical displacement plate 65 and the driven plate 63 is disposed on the worm wheel 61, each projecting piece 652 faces the upper end surface of the outer peripheral wall portion 61 a of the worm wheel 61. When the worm wheel 61 and the vertical displacement plate 65 rotate around the output shaft 3, the projecting piece 652 and the projecting piece 612 rotate on the same circumference.

  FIG. 5 is a side view showing the positional relationship between the worm wheel 61 and the vertical displacement plate 65. As shown in FIG. 5, the vertical displacement plate 65 is disposed coaxially with the worm wheel 61 so as to face the worm wheel 61. A protrusion 612 is formed on the surface of the worm wheel 61 that faces the vertical displacement plate 65 (specifically, the upper end surface of the outer peripheral wall portion 61a of the worm wheel 61), and faces the worm wheel 61 of the vertical displacement plate 65. A protruding piece 652 is formed on the surface (the lower surface in the drawing).

  The projecting piece 612 is formed with a tapered surface 612a. The tapered surface 612a is formed on a surface corresponding to the leading side in the rotation direction of the projecting piece 612 when the worm wheel 61 rotates in the X direction in FIG. The tapered surface 612a is inclined with respect to the X direction so that the bottom side of the projecting piece 612 is longer than the top side. Due to the presence of the tapered surface 612a, the shape of the protruding piece 612 is substantially trapezoidal.

  Further, the projecting piece 652 is formed with a tapered surface 652a. The tapered surface 652a is a surface on the side where the projecting piece 612 approaches when the worm wheel 61 rotates relative to the vertical displacement plate 65 in the X direction, that is, the side facing the tapered surface 612a of the projecting piece 612. Formed on the surface. The tapered surface 652a is inclined with respect to the X direction so that the bottom side of the protruding piece 652 is longer than the top side. Due to the presence of the tapered surface 652a, the shape of the projecting piece 652 becomes a substantially inverted trapezoidal shape.

  Further, when the worm wheel 61 and the vertical displacement plate 65 are relatively rotated, the projecting piece 612 and the projecting piece 652 interfere with each other. In this case, when the worm wheel 61 rotates in the direction of the arrow X in FIG. 2 and the protrusions 612 and 652 interfere when the vertical displacement plate 65 is not rotating, the protrusions 612 and 652 are tapered. Engage at surfaces 612a and 652a. When engaged, both tapered surfaces 612a and 652a are in surface contact.

  As shown in FIG. 2, the leaf spring 67 has a ring-shaped portion and a plate-shaped portion extending radially from the ring-shaped portion, and the output shaft 3 is inserted into the ring-shaped portion. The leaf spring 67 is interposed between the vertical displacement plate 65 and the lid 83. Therefore, the vertical displacement plate 65 receives the elastic force of the plate spring 67 and is pressed against the driven plate 63 via the washer 64 and is positioned at a predetermined position in the second housing 82.

  FIG. 3 is a schematic side view of the detection switch 66. As can be seen from the drawing, the detection switch 66 includes a substrate 661, a first conductive portion 662a and a second conductive portion 662b formed on the substrate 661, and a movable piece 663 whose proximal end is connected to the first conductive portion 662a. Have. When the tip of the movable piece 663 is separated from the substrate 661 as indicated by a solid line, the first conductive portion 662a and the second conductive portion 662b are in a non-conductive state. On the other hand, when the tip of the movable piece 663 is pressed and comes into contact with the second conductive portion 662b on the substrate 661 as indicated by a broken line, the first conductive portion 662a and the second conductive portion 662b are interposed via the movable piece 663. Becomes conductive. When the first conductive portion 662a and the second conductive portion 662b are in a non-conductive state, the switching state of the detection switch 66 is in an OFF state, and when the first conductive portion 662a and the second conductive portion 662b are in a conductive state, the switching state of the detection switch 66 is in an ON state.

  The detection switch 66 is disposed immediately above the vertical displacement plate 65 in FIG. 2 so that the movable piece 663 faces the vertical displacement plate 65, and the position of the detection switch 66 does not change, for example, as shown in FIG. And is positioned at a predetermined position in the second housing 82.

  FIG. 4 is a front view showing an assembled state of various components 6 in the second housing 8. In this figure, the vertical displacement plate 65 is omitted. As can be seen from FIG. 4, the worm wheel 61 is engaged with the worm WG housed in the first housing 81. The driving force transmission spring 62 is disposed in the worm wheel 61, and one end thereof is locked to the locking portion 611 and the other end is locked to the protruding piece 63 d of the driven plate 63.

  In such a configuration, when the rotation of the electric motor 2 is transmitted to the worm wheel 61 and the worm wheel 61 is rotationally driven in the direction of the arrow X in FIGS. 2 and 4, the locking portion 611 formed on the worm wheel 61 A rotational driving force is transmitted to the driving force transmission spring 62 with one end locked, and the driving force transmission spring 62 is also rotationally driven in the X direction. When the driving force transmission spring 62 is rotationally driven in the X direction, the rotational driving force is transmitted to the driven plate 63 that engages the other end of the driving force transmission spring 62 with the projecting piece 63d, and the driven plate 63 is also moved in the X direction. Rotation drive. As the driven plate 63 rotates, the vertical displacement plate 65 and the output gear 33 formed on the output shaft 3 rotate in the X direction. The rotation of the output gear 33 in the X direction is the rotation of the output shaft 3 in the clockwise direction as viewed from FIG. Accordingly, the lift arm 93 of the driving force transmission device 9 rotates counterclockwise in FIG. As a result, the window glass W is closed.

  On the other hand, when the worm wheel 61 rotates in the direction of the arrow X ′ in FIGS. 2 and 4, the locking portion 611 moves away from the driving force transmission spring 62 and engages with the protruding piece 63 d of the driven plate 63. To do. By this engagement, the rotational driving force of the worm wheel 61 is directly transmitted to the driven plate 63 without passing through the driving force transmission spring 62. As a result, the driven plate 63 rotates in the X ′ direction, and accordingly, the vertical displacement plate 65 and the output gear 33 formed on the output shaft 3 rotate in the X ′ direction. The rotation of the output gear 33 in the X ′ direction is the rotation of the output shaft 3 in the counterclockwise direction when viewed from FIG. 1. Therefore, the lift arm 93 of the driving force transmission device 9 rotates in the clockwise direction in FIG. As a result, the window glass W is opened.

  In the present embodiment, the member on the side that transmits the driving force to the driving force transmitting spring 62 when the window glass W is closed, that is, the electric motor 2, the worm WG, and the worm wheel 61 generate the driving force. It corresponds to. Further, a member interposed between the driving force transmission spring 62 and the window glass W, that is, the driven plate 63, the output shaft 3, and the driving force transmission device 9 are connected to the opening / closing mechanism of the present invention, that is, the window glass W. This corresponds to an opening / closing mechanism that opens and closes the window glass W by transmitting the driving force generated by the driving mechanism. The driving force transmission spring 62 is interposed between the driving mechanism and the opening / closing mechanism, and transmits the driving force of the driving mechanism to the opening / closing mechanism.

  While the window glass W is closing (when the window glass W has not yet reached the fully closed position), the driving force transmission spring 62 is driven to rotate within the worm wheel 61 with almost no deformation, and the worm wheel 61 is rotated. The driving force is transmitted to the driven plate 63, the vertical displacement plate 65 and the output gear 33. At this time, since the worm wheel 61 and the vertical displacement plate 65 rotate synchronously at the same speed in the X direction as shown in FIG. 5, there is no rotational phase difference between the worm wheel 61 and the output gear 33. Therefore, the distance between the protrusion 612 formed on the worm wheel 61 and the protrusion 652 formed on the vertical displacement plate 65 does not change, and the protrusions 612 and 652 do not interfere with each other and maintain a constant distance. Rotate on the same circumference. At this time, the tip of the movable piece 663 of the detection switch 66 disposed on the upper part of the vertical displacement plate 65 is not in contact with the vertical displacement plate 65. Therefore, no pressing force is applied to the movable piece 663, and the tip portion thereof is separated from the second conductive portion 662b. That is, when the open / close position of the window glass W has not reached the fully closed position, the switching state of the detection switch 66 is OFF.

  On the other hand, when the window glass W is closed and the upper end of the window glass abuts against the window frame, the further closing operation (raising) of the window glass W is prevented, so that the rotation of the output gear 33 is restricted. Along with the rotation restriction of the output gear 33, the rotation of the driven plate 63 and the vertical displacement plate 65 is also stopped. However, the worm wheel 61 receives the rotational driving force of the electric motor 2 and continues to rotate in the X direction of FIGS. For this reason, the worm wheel 61 rotates relative to the driven plate 63 and the vertical displacement plate 65 in the X direction. At this time, the projecting piece 63d formed on the driven plate 63 is stopped, whereas the engaging portion 611 formed on the worm wheel 61 is rotating, so that the driving force transmitted between them is transmitted. The spring 62 is compressed and deformed by the driving force transmitted from the worm wheel 61. That is, when the window glass W hits the window frame, the driving force transmission spring 62 is compressed and deformed. FIG. 6 is a front view showing an assembled state of various components 6 in the second housing 82 when the driving force transmission spring 62 is compressed.

  When the worm wheel 61 rotates relative to the vertical displacement plate 65 in the X direction due to the rotation restriction of the output gear 33, a rotational phase difference between the worm wheel 61 and the output gear 33 is generated. That is, the rotational phase difference between the worm wheel 61 and the output gear 33 increases in the direction before and after the compressive deformation of the driving force transmission spring 62. Further, the distance between the projecting piece 612 formed on the worm wheel 61 and the projecting piece 652 formed on the vertical displacement plate 65 is reduced, and the projecting pieces interfere with each other. FIG. 7 is a side view showing a state in which both projecting pieces 612 and 652 interfere with each other. As shown in the drawing, the projecting pieces 612 and 652 are engaged with each other at the tapered surfaces 612a and 652a. By this engagement, the protruding piece 652 of the vertical displacement plate 65 moves so as to slide on the tapered surface 612 a and rides on the protruding piece 612 of the worm wheel 61. As a result, the vertical displacement plate 65 resists the urging force of the leaf spring 67 in the second housing 82 upward in the drawing, that is, away from the worm wheel 61, and the axial direction of the worm wheel 61 and the output shaft 3. Pushed up. As described above, when the rotational phase difference between the worm wheel 61 and the output gear 33 changes due to the compressive deformation of the driving force transmission spring 62, the vertical displacement plate 65 is moved to the second housing 82 based on the change. On the other hand, it is displaced upward. Since each protrusion 652 rides on each protrusion 612 at the same time, the vertical displacement plate 65 is displaced in the axial direction without being inclined.

  When the vertical displacement plate 65 is pushed upward by the engagement of the two projecting pieces 612 and 652, the upper surface of the vertical displacement plate 65 presses the movable piece 663 of the detection switch 66 as shown in FIG. As a result, the tip of the movable piece 663 comes into contact with the second conductive portion 662b formed on the substrate 661, and the first conductive portion 662a and the second conductive portion 662b become conductive through the movable piece 663. As a result, the switching state of the detection switch 66 changes to the ON state. When the switching state changes from the OFF state to the ON state, the detection switch 66 detects the upward displacement of the vertical displacement plate 65. When the upward displacement of the vertical displacement plate 65 is detected by the detection switch 66, the fully closed position of the window glass W is detected.

  When the switching state of the detection switch 66 changes from the OFF state to the ON state, that is, when the fully closed position of the window glass is detected, the driving of the electric motor 2 is stopped. Thereby, the rotation of the worm wheel 61 is also stopped. At this time, the driving force transmission spring 62 maintains a state where it is compressed and deformed.

  When a glass break occurs when the open / close position of the window glass W is a fully closed position, that is, when the switching state of the detection switch 66 is ON and the drive of the electric motor 2 is stopped, for example, a window Since the glass breaks into pieces and the abutment between the upper end side of the window glass W and the window frame is eliminated, the rotation restriction of the output gear 33 is released. As a result, the restriction load on the output gear side that restrains the driving force transmission spring 62 is eliminated, so that the compressive deformation of the driving force transmission spring 62 is restored, and the stretched force (restoring force) generated at the time of restoration is restored. The drive plate 63, the vertical displacement plate 65, and the output gear 33 rotate relative to the stopped worm wheel 61 in the X direction of FIGS. This relative rotation cancels the rotational phase difference between the worm wheel 61 and the output gear 33. That is, the rotational phase difference between the worm wheel 61 and the output gear 33 decreases before and after the compression deformation of the driving force transmission spring 62 is restored. FIG. 8 is a front view showing the assembled state of the various components 6 in the second housing 82 when the driving force transmission spring 62 is restored due to glass breakage, and FIG. 9 is the worm wheel 61 and vertical displacement at the time of glass breakage. FIG. 6 is a side view showing an arrangement relationship with a plate 65.

  When the vertical displacement plate 65 rotates relative to the worm wheel 61 in the X direction, the protrusion 652 of the vertical displacement plate 65 slides down from the protrusion 612 of the worm wheel 61. Therefore, as shown in FIG. 9, the vertical displacement plate 65 is displaced downward in the second housing 82 in the drawing, that is, in the direction approaching the worm wheel 61 and in the axial direction of the worm wheel 61 and the output shaft 3. . As described above, when the rotational phase difference between the worm wheel 61 and the output gear 33 is changed due to the restoration of the driving force transmission spring 62, the vertical displacement plate 65 is moved relative to the second housing 82 based on the change. To move downward.

  When the vertical displacement plate 65 is displaced downward, as shown in FIG. 9, the upper surface of the vertical displacement plate 65 is separated from the movable piece 663 of the detection switch 66, and the switching state of the detection switch 66 is changed to the OFF state. When the switching state of the detection switch 66 changes from the ON state to the OFF state, the detection switch 66 detects the downward displacement of the vertical displacement plate 65. A glass break is detected when the detection switch 66 detects a downward displacement of the vertical displacement plate 65 when the electric motor 2 is stopped.

  As can be seen from the above description, according to the window regulator device of the present embodiment, the detection switch 66 detects the displacement of the vertical displacement plate 65 based on the change in the switching state. The vertical displacement plate 65 is displaced when the rotational phase difference between the worm wheel 61 and the output gear 33 changes. That is, the detection switch 66 detects a change in the rotational phase difference between the worm wheel 61 and the output gear 33 by detecting the displacement of the vertical displacement plate 65. The rotational phase difference between the worm wheel 61 and the output gear 33 changes when the driving force transmission spring 62 is compressed or deformed. That is, the detection switch 66 detects a change in the rotational phase difference between the worm wheel 61 and the output gear 33 by detecting the displacement of the vertical displacement plate 65, and further, the rotational phase difference between the worm wheel 61 and the output gear 33. By detecting this, compression deformation and restoration of the driving force transmission spring 62 are detected.

  The detection switch 66 detects the displacement of the vertical displacement plate 65 upward (in the direction away from the worm wheel 61) based on the change of the switching state from the OFF state to the ON state. When the detection switch 66 detects the upward displacement of the vertical displacement plate 65, the fully closed position of the window glass W is detected. The vertical displacement plate 65 is displaced upward when the driving force transmission spring 62 is compressed and deformed. When the driving force transmission spring 62 is compressed and deformed, the window glass W hits the window frame. Therefore, according to the present embodiment, the fully closed position of the window glass W is detected when the window glass W hits the window frame.

  The detection switch 66 detects the displacement of the vertical displacement plate 65 downward (in the direction approaching the worm wheel 61) based on the change of the switching state from the ON state to the OFF state. The vertical displacement plate 65 is displaced downward when the compressive deformation of the driving force transmission spring 62 is restored due to glass breakage. When the detection switch 66 detects the downward displacement of the vertical displacement plate 65, that is, the restoration of the driving force transmission spring 62, a glass break is detected.

  The driving force transmission spring 62 is attached to a worm wheel 61 that is positioned in the second housing 82. That is, the driving force transmission spring 62 is attached to the second housing 82 via the worm wheel 61. Therefore, the driving force transmission spring 62 is deformed and restored in the second housing 82. The deformation and restoration of the driving force transmission spring 62 in the second housing 82 is observed as a displacement with respect to the second housing 82. In the present embodiment, deformation and restoration of the driving force transmission spring 62 are expressed as displacement of the vertical displacement plate 65. This displacement is detected by a detection switch 66 attached to the same housing (second housing 82). That is, the displacement area of the detection target and the position of the detection member are determined based on the same housing (second housing 82). Therefore, the positional relationship between the displacement area to be detected and the detection member does not shift. Therefore, based on detection by the detection switch 66 (detection of compression deformation and restoration of the driving force transmission spring 62, detection of a change in rotational phase difference between the worm wheel 61 and the output gear 33, detection of displacement of the vertical displacement plate 65). Glass breakage is detected with high accuracy.

  Thus, according to the present embodiment, since the fully closed position of the window glass W is determined by the abutment between the window glass and the window frame, the window glass can be reliably closed at the fully closed position. Further, since the detection target and the detection member are attached to the same housing (second housing 82), an assembly error between the member to which the detection target is attached and the member to which the detection switch 66 is attached does not occur. Therefore, the detection accuracy of the glass breakage by the detection switch 66 is also kept good.

  The housing 8 includes a first housing 81 and a second housing 82 that house the gear mechanism (worm WG and worm wheel 61). A driving force transmission spring 62 and a detection switch 66 are disposed in the second housing 82. ing. Accordingly, the type of the opening / closing mechanism provided on the window glass W side with respect to the output shaft 3 may be of any type. Therefore, this embodiment can be applied not only to the X-arm type window regulator device as shown in this embodiment, but also to, for example, a cable-type window regulator device.

  Further, as the driving force transmission spring 62 is compressed and deformed, the rotational phase difference between the worm wheel 61 rotatably attached to the second housing 82 and the output gear 33 changes. This change in rotational phase difference is observed as a displacement with respect to the second housing 82. In the present embodiment, the change in the rotational phase difference is represented as the displacement of the vertical displacement plate 65 with respect to the second housing 82. That is, the detection switch 66 detects a change in the rotational phase difference between the worm wheel 61 and the output gear 33 by detecting the displacement of the vertical displacement plate 65. By detecting this change, the compressive deformation and restoration of the driving force transmission spring 62 are reliably detected.

  The vertical displacement plate 65 is attached to the second housing 82 via the output shaft 3 so as to be reciprocally movable. The second housing 82 is displaced based on the change in the rotational phase difference. The displacement of the vertical displacement plate 65 relative to the second housing 82 is detected by a detection switch 66 attached to the same housing (second housing). As a result, the rotational phase difference between the worm wheel 61 and the output gear 33 is reliably detected regardless of the rotational position of the worm wheel 61 and the output gear 33.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. FIG. 10 is a front view showing the overall configuration of the window regulator device according to the present embodiment. This window regulator device is a cable-type window regulator device instead of the X-arm type described above.

  This window regulator device includes a drive device 110, a carrier plate 120, a rail member 130, a movable pulley 140, a fixed pulley 150, a cable 160, and a detection switch 170.

  The driving device 110 is fixed to the door panel. The drive device 110 corresponds to the drive mechanism of the present invention, and includes an electric motor 111, a gear mechanism including a worm 112 and a worm wheel 113, and a drive pulley 114 that is coaxially connected to the worm wheel 113. A driving force is generated by the electric motor 111. This driving force is transmitted to the worm 112. When the worm 112 is rotated by the driving force, the worm wheel 113 engaged with the worm 112 rotates at a reduced speed. The drive pulley 114 also rotates in conjunction with the decelerated rotation of the worm wheel 113.

  The carrier plate 120 is connected to the lower end of the window glass W. The rail member 130 is formed in a vertically long shape and is fixed to the door panel. A guide rail 131 is formed on the rail member 130 along the vertical direction in the figure. The formation direction of the guide rail 131 coincides with the opening / closing direction of the window glass W. A carrier plate 120 is movably attached to the guide rail 131. Therefore, the carrier plate 120 is guided by the guide rail 131 so as to be movable in the opening / closing direction of the window glass W.

  A movable pulley 140 is attached to the upper end side of the rail member 130 in the figure. A fixed pulley 150 is attached to the lower end side of the rail member 130 in the figure. The fixed pulley 150 is rotatably fixed to the rail member 130 by a pin member or the like.

  Further, the cable 160 is connected to a first support pin 121 fixed to the carrier plate 120 at one end, and connected to a second support pin 122 fixed to the carrier plate 120 at the other end. The cable 160 is routed around the driving pulley 114, the movable pulley 140, and the fixed pulley 150, respectively.

  11 is a detailed view of a portion A in FIG. 10, and FIG. 12 is a partial cross-sectional view taken along line BB in FIG. As shown in FIGS. 11 and 12, a rectangular parallelepiped concave portion 132 is formed in an upper portion of the rail member 130. Guide rails 134 are formed on the left and right wall surfaces constituting the recess 132 along the vertical direction. A pulley support member 133 is disposed in the recess 132. In FIG. 11 of the pulley support member 133, grooves are formed along the vertical direction on the left and right surfaces. By fitting the groove into the guide rail 134, the pulley support member 133 is attached to the rail member 130 so that the groove 132 can move in the vertical direction and cannot move in the front-rear and left-right directions. Further, as can be seen from FIG. 12, the length in the thickness direction of the pulley support member 133 (length in the left-right direction in the figure) is longer than the length in the depth direction of the recess 132 (length in the left-right direction in the figure). Therefore, the pulley support member 133 partially protrudes from the recess 132. A pin 135 is formed in the front surface FR of the protruding portion. The movable pulley 140 is rotatably connected to the pulley support member 133 via the pin 135. With such a configuration, the movable pulley 140 is attached to the rail member 130 so as to be movable in the vertical direction (the opening / closing direction of the window glass W).

  A compression spring 180 is disposed in the recess 132. The lower end side of the compression spring 180 is connected to the lower surface of the recess 132, and the upper end side is connected to the pulley support member 133. Accordingly, the pulley support member 133 is elastically supported in the recess 132 by the compression spring 180 and is pushed upward by the elastic force of the compression spring 180. The compression spring 180 corresponds to the elastic member of the present invention.

  A detection switch 170 is attached to the rail member 130. This detection switch 170 is located below the recess 132. The detection switch 170 has a housing 171 and a movable piece 172. The housing 171 is fixed to the front side (front side in FIG. 11) of the guide rail 131. A movable piece 172 extends obliquely upward from the inside of the housing 171. The tip of the movable piece 172 is pressed against the lower surface LO of the pulley support member 133 protruding from the recess 132 by elastic force.

  In such a configuration, when the driving pulley 114 is driven to rotate in the clockwise direction in FIG. 10, for example, by driving the driving device 110, the rotational driving force is transmitted to the carrier plate 120 via the cable 160. As a result, the cable 160 is sent in the direction indicated by the solid arrow in FIG. 10 and the carrier plate 120 moves upward along the guide rail 131. As the carrier plate 120 moves upward, the window glass W also moves upward (closed operation).

  On the other hand, when the driving pulley 114 is driven to rotate counterclockwise in FIG. 10 by driving the driving device 110, the rotational driving force is transmitted to the carrier plate 120 via the cable 160. As a result, the cable 160 is sent in the direction indicated by the dotted arrow in the figure, and the carrier plate 120 moves downward along the guide rail 131. As the carrier plate 120 moves downward, the window glass W also moves downward (opening operation).

  During the closing operation and the opening operation of the window glass W, the carrier plate 120 moves, so that the tension of the cable 160 hardly acts on the movable pulley 140. Therefore, the compression spring 180 that elastically supports the pulley support member 133 to which the movable pulley 140 is attached is not deformed, and the pulley support member 133 is not displaced.

  When the window glass W hits the window frame by the closing operation of the window glass W, the further raising (closing operation) of the window glass W is stopped. Thereby, the movement of the carrier plate 120 connected to the window glass W is also restricted. On the other hand, the driving device 110 continues driving. Therefore, the tension of the cable 160 generated by the driving force of the driving device 110 acts on the compression spring 180 via the movable pulley 140 and the pulley support member 133, and when this tension becomes larger than the reaction force of the compression spring 180, the compression spring 180 is compressed and deformed. As the compression spring 180 is compressed and deformed, the pulley support member 133 elastically supported by the compression spring 180 moves downward in the recess 132 in the drawing. 13 is a detailed view of the vicinity of the movable pulley 140 and the detection switch 170 when the pulley support member 133 moves downward, and FIG. 14 is a partial cross-sectional view taken along the line CC in FIG. As shown in these drawings, the movable piece 172 of the detection switch 170 is pushed down by the downward movement of the pulley support member 133. The detection switch 170 detects that the movable pulley 140 has moved downward when the movable piece 172 is pushed down. When the detection switch 170 detects the downward movement of the movable pulley 140, the fully closed position of the window glass W is detected. When the fully closed position of the window glass is detected, the driving of the electric motor 111 is stopped.

  When the open / close position of the window glass W is the fully closed position, that is, when the glass breakage occurs when the movable piece 172 of the detection switch 170 is pushed down, the upper end side of the window glass W and the window frame are abutted against each other. Therefore, the movement restriction of the carrier plate 120 is released. For this reason, the carrier plate 120 moves upward. Due to the movement of the carrier plate 120, the tension of the cable 160 holding the compression spring 180 is reduced. As a result, the compression deformation of the compression spring 180 is restored, and the pulley support member 133 and the movable pulley 140 are pushed upward in FIG. 13 by the restoring force. Due to the upward movement of the pulley support member 133, the movable piece 172 of the detection switch 170 returns to the original inclined state before being pushed down. The detection switch 170 detects that the movable pulley 140 has moved upward when the movable piece 172 returns to the original inclined state. When the detection switch 170 detects the upward movement of the movable pulley 140 while the driving of the electric motor 111 is stopped, a glass break is detected.

  As can be seen from the above description, according to the window regulator device of this embodiment, the detection switch 170 detects the downward movement of the movable pulley 140 when the movable piece 172 is pushed down. When the detection switch 170 detects the downward movement of the movable pulley 140, the fully closed position of the window glass W is detected. When the compression spring 180 is compressed and deformed by the tension of the cable 160, the movable pulley 140 moves downward together with the pulley support member 133 along with the compression deformation. The case where the compression spring 180 is compressed and deformed is a case where the window glass W hits the window frame. Therefore, the fully closed position of the window glass W is detected when the window glass W hits the window frame.

  The detection switch 170 detects the upward movement of the movable pulley 140 when the movable piece 172 returns from the tilted state where the movable piece 172 is pushed down to the original tilted state. When the compressive deformation of the compression spring is restored due to glass breakage, the movable pulley 140 moves upward together with the pulley support member 133 along with the restoration. When the detection switch 170 detects the upward movement of the movable pulley 140, that is, the restoration of the compression spring 180, a glass break is detected.

  Further, the compression spring 180 and the detection switch 170 are integrally attached to the rail member 130. Since the compression spring 180 is attached to the rail member 130, the compression spring 180 is deformed and restored in the rail member 130. For this reason, the pulley support member 133 and the movable pulley 140 move relative to the rail member 130 as the compression spring 180 is deformed and restored. Such movement with respect to the rail member 130 is detected by the detection switch 170 attached to the same rail member 130. That is, the movement area (displacement area) of the detection target and the position of the detection member are determined based on the same rail member 130. Therefore, the detection accuracy of the fully closed position and the detection accuracy of glass breakage by the detection switch 170 are improved.

  Further, according to the present embodiment, the recess 132 is formed in the rail member 130, the pulley support member 133 and the compression spring 180 are disposed in the recess 132, and the detection switch 170 is attached to the rail member 130. In addition, it is possible to detect the fully closed position of the window glass W and to detect glass breakage. Furthermore, this embodiment can also be applied to a type of window regulator device in which the cable 160 is covered with an outer tube.

  As mentioned above, although embodiment of this invention was described, this invention should not be limited and limited to the said embodiment. For example, in the first embodiment, the detection switch 66 detects whether the opening / closing position of the window glass is the fully closed position based on the compression deformation of the driving force transmission spring 62. A function of detecting whether or not a foreign object is caught in the window glass based on the compression deformation of the transmission spring 62 may be provided. In this case, paying attention to the fact that the pinching detection load serving as a reference for judging the pinching of foreign matter is much smaller than the full closing position detection load serving as a reference for judging the fully closed position, What is necessary is just to comprise by 1 driving force transmission spring and 2nd driving force transmission spring, and to connect these springs in series. Then, the spring constant is set so that the compression load of the first driving force transmission spring is about the pinched detection load, and the spring constant is set so that the compression load of the second driving force transmission spring is about the fully closed position detection load. Should be set. According to this, when a foreign object is caught in the window glass, only the first driving force transmission spring is compressed, and when the window glass hits the window frame, the first driving force transmission spring and the second driving force transmission spring are compressed. Compressed. Therefore, the foreign object is not caught based on the difference between the total displacement of the driving force transmission spring when the foreign object is caught and the entire displacement of the driving force transmission spring when the window glass is in the fully closed position. It can be distinguished whether it is occurring or the window glass is in the fully closed position. In addition, since a part for detecting the fully closed position of the window glass, a part for detecting glass breakage, and a part for detecting pinching are gathered in one housing, it contributes to the downsizing of the window regulator device.

  Further, in the first embodiment, the displacement of the vertical displacement plate 65 is detected based on the change in the rotational phase difference between the worm wheel 61 and the output gear 33 that occurs due to the compression deformation and restoration of the driving force transmission spring 62. Thus, an example in which the fully closed position of the window glass and the glass breakage are detected has been shown. However, the change in the rotational phase difference between the worm wheel 61 and the output gear 33 that occurs with the compression deformation and restoration of the driving force transmission spring 62 is shown. By detecting directly, the fully closed position of the window glass W and the glass breakage may be detected. That is, the detection target may be the worm wheel 61 and the output gear 33. In this case, a detection switch (such as a Hall IC) that can directly detect the change in the rotational phase difference in the second housing 82 is attached to the second housing 82, and the change in the rotational phase difference is detected by the detection switch. do it. Further, the fully closed position of the window glass W and the glass breakage may be detected by directly detecting the compressive deformation and restoration of the driving force transmission spring 62. That is, the detection target may be the driving force transmission spring 62 itself. In this case, a detection switch that can directly detect the compression deformation and restoration of the driving force transmission spring 62 in the second housing 82 by, for example, displacement of the driving force transmission spring 62 is attached to the second housing 82, and this detection switch The compression deformation and restoration of the driving force transmission spring 62 may be detected.

  In the above embodiment, the elastic member (the driving force transmission spring 62 and the compression spring 180) is compressed by the driving force of the driving mechanism when the open / close position of the window glass reaches the fully closed position. The member may extend. Further, as the elastic member, a member other than a spring (for example, rubber) may be applied. Moreover, as a drive source for opening and closing the window glass, an actuator other than the electric motor may be used, or the window glass may be manually opened and closed. Moreover, in the said embodiment, although the example which detected the detection of the fully-closed position of a window glass and a glass breakage with one detection switch was shown, even if it detects with another detection switch attached to the same member Good. In addition to the contact detection switch shown in the above embodiment, a non-contact detection sensor or the like can also be applied as the detection member. Thus, the present invention can be modified without departing from the gist thereof.

DESCRIPTION OF SYMBOLS 2 ... Electric motor (drive mechanism), 3 ... Output shaft (opening / closing mechanism), 33 ... Output gear, 8 ... Housing, 9 ... Driving force transmission device (opening / closing mechanism), WG ... Worm (drive mechanism), 61 ... Worm wheel (Driving mechanism, reduction gear), 612 ... projecting piece, 62 ... driving force transmitting spring (elastic member), 63 ... driven plate (opening / closing mechanism), 65 ... vertical displacement plate, 651 ... rotating plate, 652 ... projecting piece, 66 ... Detection switch (detection member), 661 ... Substrate, 662a ... First conductive part, 662b ... Second conductive part, 663 ... Movable piece, 81 ... First housing (gear box), 82 ... Second housing (gear box) ), 82a ... bearing portion, 83 ... lid, 83a ... recess, 110 ... drive device (drive mechanism), 111 ... electric motor, 112 ... worm, 113 ... worm wheel, 114 ... drive pulley, 1 DESCRIPTION OF SYMBOLS 0 ... Carrier plate, 130 ... Rail member, 131 ... Guide rail, 132 ... Concavity, 133 ... Pulley support member, 140 ... Movable pulley, 160 ... Cable, 170 ... Detection switch (detection member), 180 ... Compression spring (elastic member) )

Claims (5)

In a window regulator device for opening and closing a window glass of a vehicle,
A drive mechanism that generates a drive force by electric or manual operation;
An opening and closing mechanism that is connected to a window glass of a vehicle and that opens and closes the window glass by transmitting a driving force generated by the driving mechanism;
It is interposed between the drive mechanism and the opening / closing mechanism, transmits the driving force of the driving mechanism to the opening / closing mechanism, and when the window glass hits a window frame during the closing operation of the window glass, An elastic member that is deformed by a driving force transmitted from a driving mechanism, and that the deformation is restored when a glass breakage occurs when the window glass is in a state of striking a window frame;
A detection member for detecting deformation and restoration of the elastic member;
A window regulator device comprising: a housing in which the elastic member and the detection member are attached. The window regulator device according to claim 1,
The drive mechanism includes an electric motor and a gear mechanism that is connected to the electric motor and transmits a rotational driving force of the electric motor to the elastic member.
The housing has a gear box that houses the gear mechanism;
The window regulator device, wherein the elastic member and the detection member are disposed in the gear box. The window regulator device according to claim 2,
The gear mechanism is rotatably attached to the housing and has a reduction gear that reduces the rotation of the electric motor;
The open / close mechanism is rotatably attached to the housing, and has an output gear that rotates when a rotational driving force of the reduction gear is transmitted through the elastic member,
The window regulator device according to claim 1, wherein the detection member detects deformation and restoration of the elastic member by detecting a change in a rotational phase difference between the reduction gear and the output gear. The window regulator device according to claim 3,
A displacement plate that is attached to the housing so as to be reciprocally movable, and is displaced in the reciprocating direction when a change in rotational phase difference between the reduction gear and the output gear occurs;
The window regulator device according to claim 1, wherein the detection member detects a change in a rotational phase difference between the reduction gear and the output gear by detecting a displacement of the displacement plate. In a window regulator device for opening and closing a window glass of a vehicle,
A drive mechanism that generates a drive force by electric or manual operation;
A carrier plate connected to the window glass of the vehicle;
A rail member formed with a guide rail for guiding the carrier plate so that the carrier plate is movable in the opening and closing direction of the window glass;
A movable pulley movably attached to the rail member;
The drive generated by the drive mechanism is routed by the movable pulley and connects the drive mechanism and the carrier plate so that the carrier plate moves in the opening / closing direction of the window glass along the guide rail. A cable for transmitting force to the carrier plate;
It is attached to the rail member, elastically supports the movable pulley, and deformed by the tension of the cable transmitted through the movable pulley when the window glass hits a window frame during the closing operation of the window glass. And an elastic member that restores the deformation when a glass crack occurs when the window glass is in contact with the window frame,
A detection member attached to the rail member for detecting movement of the movable pulley relative to the rail member accompanying the deformation and restoration of the elastic member;
A window regulator device comprising:

Images