JP2016112908A - Fixing structure of wiper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently secure fixing intensity to a vehicle body, without reducing an assembly property to a vehicle body.SOLUTION: A hook part 93 extending in an extension direction of a fixing surface 10c of a vehicle body, is provided on a motor fixing part 90. A gear housing 51 has an elastic fixing member 80 which is hooked to the hook part 93 by being moved to the extension direction of the fixing surface 10c, and movement into a direction crossing the extension direction of the fixing surface 10c is regulated. Therefore, fixing intensity of a wiper device 14 to the vehicle body, is secured, without reducing an assembly property to the vehicle body.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a wiper device fixing structure for fixing a wiper device having a wiper motor having a housing to a motor fixing portion provided on a fixing surface of a vehicle body.

  Conventionally, a vehicle such as an automobile is equipped with a wiper device that secures the field of view of the driver and passengers. The wiper device has a wiper motor, and by driving the wiper motor, the wiper member provided on the windshield swings, thereby wiping away rainwater and dust adhering to the wiping surface of the windshield. Is done. Here, when the wiper device is operated, a relatively large reaction force is applied to the wiper device due to the sliding resistance of the wiper member. In this case, since the wiper device bends while being twisted, it is necessary to increase the fixing strength to the vehicle body in order to make the wiper device difficult to bend. However, simply increasing the number of fastening members such as fixing bolts to fix the wiper device to the vehicle body not only increases the strength of fixing the wiper device to the vehicle body, but also makes the assembly of the wiper device to the vehicle body complicated. The fixing structure on the vehicle body side is complicated and not realistic.

  For example, in the wiper device fixing structure described in Patent Document 1, the wiper motor at the center in the longitudinal direction of the wiper device is provided with a support pin that is inserted into the support hole on the vehicle body side, and the support pin is inserted into the support hole. Under these conditions, the driver seat side and the passenger seat side are fixed with fixing bolts. Thereby, the assembly | attachment property to the vehicle body of the wiper apparatus is made favorable.

JP 2000-289576 A (FIG. 1)

  However, according to the fixing structure of the wiper device described in Patent Document 1 described above, the support pin provided on the wiper motor is simply inserted into the support hole from the axial direction at the center in the longitudinal direction of the wiper device. The pin is in a state where only the vertical movement of the vehicle body is restricted with respect to the support hole. Therefore, when a large load is applied to the wiper member during snowfall, or when the wiper member is locked back vigorously to replace the blade rubber, the wiper device is greatly bent and the axial direction of the support pin (insertion direction) It can happen to move to.

  An object of the present invention is to provide a fixing structure of a wiper device that can sufficiently secure fixing strength to a vehicle body without deteriorating the assembling property to the vehicle body.

  In one aspect of the present invention, there is provided a wiper device fixing structure for fixing a wiper device having a wiper motor having a housing to a motor fixing portion provided on a fixing surface of a vehicle body. A hook portion extending in the extending direction of the fixed surface, and provided in the housing, and hooked on the hook portion by moving in the extending direction of the fixed surface, in a direction intersecting the extending direction of the fixed surface. And a first fixing part that is restricted from moving.

  In another aspect of the present invention, the wiper device includes a pair of wiper members, a pair of holder members that support a drive shaft that swings the pair of wiper members, and a frame member that connects the pair of holder members to each other. The pair of holder members has a second fixing portion fixed to the vehicle body by a fastening member.

  In another aspect of the present invention, the motor fixing portion includes a bridging portion that arranges the hooking portion at a position spaced from the fixing surface, and the first fixing portion opens in a moving direction of the first fixing portion. The bridging portion and the hooking portion are covered from the direction intersecting the moving direction of the first fixing portion.

  In another aspect of the invention, the first fixing portion is formed of an elastic material.

  In another aspect of the invention, the first fixing part and the motor fixing part include a mark for positioning the first fixing part at a specified position of the motor fixing part.

  According to the present invention, the motor fixing portion is provided with the hooking portion extending in the extending direction of the fixing surface of the vehicle body, and the housing is moved in the extending direction of the fixing surface to be hooked on the hooking portion. A first fixing portion is provided in which movement in a direction intersecting the extending direction is restricted. Thereby, the fixing strength to the vehicle body can be sufficiently ensured without deteriorating the assembly of the wiper device to the vehicle body.

It is the schematic which shows the vehicle carrying a wiper apparatus. It is a perspective view which shows the detail of the wiper apparatus of FIG. It is explanatory drawing explaining the internal structure of the wiper motor of FIG. It is an enlarged view of the broken-line circle | round | yen A part of FIG. It is a B arrow view of FIG. It is a perspective view which shows the detailed structure of the holding nail | claw of a housing. (A), (b) is a perspective view which shows the detailed structure of a 1st fixing | fixed part. It is explanatory drawing explaining the shape of the metal mold | die used for shaping | molding of a 1st fixing | fixed part. (A), (b) is a perspective view which shows the detailed structure of a motor fixing | fixed part. It is a perspective view explaining the mounting procedure to the holding nail of the 1st fixed part. (A), (b), (c) is explanatory drawing explaining the assembly | attachment procedure to the vehicle body of a wiper apparatus. (A), (b), (c) is a figure corresponding to FIG. 11 of Embodiment 2. FIG. 10 is a perspective view illustrating Embodiment 3. FIG.

  Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.

  1 is a schematic view showing a vehicle equipped with a wiper device, FIG. 2 is a perspective view showing details of the wiper device of FIG. 1, and FIG. 3 is an explanatory diagram for explaining the internal structure of the wiper motor of FIG. Yes.

  As shown in FIG. 1, a front windshield 11 is provided on the front side of a vehicle 10 such as an automobile. On the front windshield 11, a first wiper member 12 and a second wiper member 13 are provided for wiping rainwater, dust and the like adhering to the surface of the front windshield 11.

  The first wiper member 12 is provided corresponding to the driver's seat side, and includes a first wiper blade 12a and a first wiper arm 12b. The first wiper blade 12a is rotatably attached to the distal end portion of the first wiper arm 12b. On the other hand, the second wiper member 13 is provided corresponding to the passenger seat side, and includes a second wiper blade 13a and a second wiper arm 13b. The second wiper blade 13a is rotatably attached to the distal end portion of the second wiper arm 13b.

  The first and second wiper blades 12a and 13a synchronize the first and second wiping ranges 11a and 11b formed between the lower inversion position LRP and the upper inversion position URP on the front windshield 11, respectively. A reciprocating wiping operation is performed in the same direction. That is, the wiping pattern of the first and second wiper blades 12a and 13a is a tandem type.

  The first and second wiper blades 12 a and 13 a are driven to swing by the wiper device 14. As shown in FIG. 2, the wiper device 14 includes a first holder member 15 a and a second holder member 15 b that are respectively fixed to body frames (vehicle bodies) 10 a and 10 b of the vehicle 10. The first and second holder members 15a and 15b are connected to each other by a frame member 16 made of a hollow pipe material. Thus, the wiper device 14 is a so-called modular integrated wiper device.

  Each holder member 15a, 15b rotatably supports a first drive shaft 17a corresponding to the driver seat side and a second drive shaft 17b corresponding to the passenger seat side. The distal end sides of the first and second drive shafts 17a and 17b are extended to the outside of the vehicle 10 (see FIG. 1) via a cowl top panel (not shown). The base end of the first wiper arm 12b (see FIG. 1) is fixed to the tip of the first drive shaft 17a, and the base of the second wiper arm 13b (see FIG. 1) is fixed to the tip of the second drive shaft 17b. The end is fixed.

  One end portions of a first drive lever 18a corresponding to the driver seat side and a second drive lever 18b corresponding to the passenger seat side are fixed to the base end portions of the drive shafts 17a and 17b, respectively. Both end portions of the connecting rod 19 are rotatably connected to the other end portions of the first and second drive levers 18a and 18b via ball joints (not shown). In addition, one end portion of the drive rod 20 is rotatably connected to the other end portion of the second drive lever 18b via another ball joint (not shown). The other end of the drive rod 20 is rotatably connected to one end of the crank arm 21 (see FIG. 1) via a ball joint (not shown).

  The other end portion of the crank arm 21 is fixed to the output shaft 56 of the wiper motor 30, and the crank arm 21 is rotated at one end portion thereof, that is, a connecting portion with the drive rod 20 as the output shaft 56 rotates. It has become. Here, the crank arm 21, the drive rod 20, the second drive lever 18b, the connecting rod 19 and the first drive lever 18a constitute a link mechanism. The link mechanism converts the rotational movement of the output shaft 56 into a swinging motion, and swings the drive shafts 17a and 17b.

  A wiper motor (motor with a speed reduction mechanism) 30 is provided at a substantially central portion along the axial direction of the frame member 16. The wiper motor 30 includes a motor unit 40 and a gear unit 50, and the motor unit 40 and the gear unit 50 are connected to each other by a plurality of fastening screws 31 (only one is shown in the drawing). The gear housing 51 of the gear unit 50 is firmly fixed to the frame member 16 by a pair of fastening bolts 32.

  The motor unit 40 includes a yoke 41 formed into a bottomed cylindrical shape by deep drawing a steel plate made of a magnetic material. As shown in FIG. 3, a pair of permanent magnets 42 that are formed in a substantially arc shape are disposed opposite to each other inside the yoke 41, and a predetermined gap (air gap) is provided inside each permanent magnet 42. An armature 43 is rotatably provided. An armature shaft 44 is fixed to the rotation center of the armature 43, and the armature shaft 44 is rotatably accommodated inside the yoke 41 together with the armature 43.

  One end side (left side in the figure) of the armature shaft 44 is rotatably supported on the bottom of the yoke 41 via a bearing (not shown). The other axial end side (the right side in the figure) of the armature shaft 44 is extended inside a gear housing 51 (see FIG. 2) that forms the gear portion 50. A pair of worms 45a and 45b constituting the speed reduction mechanism SD are provided on the other axial end side of the armature shaft 44. The worms 45a and 45b are larger than the pair of counter gears 53a and 53b constituting the speed reduction mechanism SD. The tooth portions 54a and 54b are engaged with each other.

  A commutator 47 that is electrically connected to a coil 46 wound around the armature 43 is fixed between the worms 45 a and 45 b of the armature shaft 44 and the armature 43. A plurality of brushes 48 (only two are shown in the figure) are in sliding contact with the outer peripheral portion of the commutator 47, and by supplying a drive current to each brush 48, the commutator 47 supplies the coil 46 via the commutator 47. A drive current is supplied. As a result, an electromagnetic force is generated in the armature 43, and consequently the armature shaft 44 rotates at a predetermined rotation speed and rotation direction. However, in the present embodiment, a motor with a brush is employed, but other types of motors such as a brushless motor may be employed.

  As shown in FIG. 2, the gear portion 50 includes a gear housing (housing) 51 and a gear cover 52 that closes an opening portion of the gear housing 51. The gear housing 51 is formed in a bathtub shape by casting a molten aluminum material or the like, and the gear cover 52 is formed in a bathtub shape by injection molding a molten plastic material or the like. The gear housing 51 and the gear cover 52 are connected to each other by a plurality of fixing screws S (four in total) in a state where the respective opening portions are brought into contact with each other and brought into close contact with each other.

  As shown in FIG. 3, a speed reduction mechanism SD is rotatably accommodated in the gear housing 51. The speed reduction mechanism SD includes two counter gears 53 a and 53 b and one spur gear 57 that are rotated by the armature shaft 44. Each counter gear 53a, 53b includes a large-diameter tooth portion 54a, 54b and a small-diameter tooth portion 55a, 55b, respectively. The large diameter tooth portions 54 a and 54 b are meshed with the worms 45 a and 45 b of the armature shaft 44. On the other hand, the spur gear 57 is formed to have a larger diameter than the counter gears 53a and 53b, and a tooth portion 57a is formed on the outer peripheral portion thereof. The teeth 57a of the spur gear 57 are engaged with the small diameter teeth 55a and 55b of the counter gears 53a and 53b, respectively.

  The base end portion of the output shaft 56 is fixed to the rotation center of the spur gear 57, and the distal end side of the output shaft 56 extends to the outside of the gear housing 51. The other end of the crank arm 21 is connected to the tip of the output shaft 56 (see FIG. 1), whereby the rotational force of the output shaft 56 is transmitted to the crank arm 21, that is, the link mechanism. Here, as indicated by the arrows in FIG. 3, the rotation of the armature shaft 44 is transmitted to the spar gear 57 via the counter gears 53a and 53b. At this time, the rotational speed of the armature shaft 44 is decelerated to a predetermined rotational speed, and the torque output from the output shaft 56 is increased. Therefore, the wiper motor 30 is a motor with a speed reduction mechanism that is small in size and capable of high output and has excellent vehicle mountability.

  A control board (not shown) is mounted inside the gear cover 52. Further, as shown in FIG. 2, a connector connecting portion 52a is integrally provided on the opposite side of the gear cover 52 from the motor portion 40 side. An external connector (not shown) on the vehicle 10 side is electrically connected to the connector connecting portion 52a, and a controller, an operation switch, etc. (not shown) installed in the vehicle 10 are electrically connected to the external connector. It is connected. Accordingly, when the operation switch is turned on, a drive current is supplied from the controller to each brush 48 (see FIG. 3) of the motor unit 40 via the control board.

  Next, the structure for fixing the wiper device 14 to the vehicle 10 will be described in detail with reference to the drawings.

  4 is an enlarged view of a broken-line circle A portion of FIG. 2, FIG. 5 is a view as seen from an arrow B in FIG. 4, FIG. 6 is a perspective view showing a detailed structure of a holding claw of the housing, FIG. b) is a perspective view showing the detailed structure of the first fixing portion, FIG. 8 is an explanatory view for explaining the shape of a mold used for forming the first fixing portion, and FIGS. 9A and 9B are motors. The perspective view which shows the detailed structure of a fixing | fixed part is shown, respectively.

  As shown in FIG. 2, the wiper device 14 includes a vehicle body of the vehicle 10 at a total of three locations including two locations on both sides in the longitudinal direction of the wiper device 14 and one location in a substantially central portion along the longitudinal direction of the wiper device 14. It is fixed to.

  A first holder member 15a and a second holder member 15b are disposed on both sides of the wiper device 14 in the longitudinal direction. The first and second holder members 15a and 15b are integrally provided with a first attachment arm 60a and a second attachment arm 60b, respectively. Each of the attachment arm portions 60a and 60b is disposed at the endmost portion along the longitudinal direction of the wiper device 14, thereby facilitating the assembly work of the wiper device 14 to the vehicle 10.

  A rubber bush RB as a cushioning material is mounted on each of the attachment arm portions 60a and 60b. And each attachment arm part 60a, 60b is being fixed to the vehicle body frame (vehicle body) 10a, 10b by the fastening bolt (fastening member) FB via the rubber bush RB, respectively. In this way, by fixing the longitudinal end portions of the wiper device 14 to the vehicle body frames 10a and 10b via the rubber bush RB, vibration generated when the wiper device 14 is driven is prevented from being transmitted to the vehicle 10. Yes. Thereby, the quietness of the vehicle 10 is improved. Further, the rubber bush RB makes it difficult for vibration on the vehicle 10 side to be input to the wiper device 14. Therefore, the wiper device 14 can be protected from the vibration of the vehicle 10.

  Here, the 1st attachment arm part 60a and the 2nd attachment arm part 60b comprise the 2nd fixing | fixed part in this invention.

  As shown in FIG. 2, a wiper motor 30 is disposed at a substantially central portion along the longitudinal direction of the wiper device 14. The wiper motor 30 is fixed to a motor fixing portion 90 provided on a fixing surface 10 c that forms the vehicle body of the vehicle 10. That is, a substantially central portion along the longitudinal direction of the wiper device 14 is fixed to the vehicle body of the vehicle 10 via the wiper motor 30.

  As shown in FIGS. 2 and 6, the gear housing 51 forming the wiper motor 30 has a pair of first holding claws 70 projecting from the output shaft 56 to the side opposite to the frame member 16 side. , 71 and one second holding claw 72 (three in total) are provided integrally. The first holding claws 70 and 71 and the second holding claws 72 protrude in a direction intersecting the axial direction of the armature shaft 44.

  The pair of first holding claws 70, 71 are provided side by side in the axial direction of the armature shaft 44, and a gap of a dimension t is formed between the first holding claws 70, 71. The base end portions of the first holding claws 70 and 71 are connected to the gear housing 51. On the other hand, engaging claws 70a and 71a bent toward the second holding claws 72 are provided at the distal ends of the first holding claws 70 and 71, respectively. Thereby, the elastic fixing member 80 can be held between the first holding claws 70 and 71 and the second holding claws 72. Here, the base end portions of the first holding claws 70 and 71 are made thicker than the distal end portions of the first holding claws 70 and 71 to increase the rigidity. As a result, it is possible to prevent stress from being concentrated on the base end portions of the first holding claws 70 and 71 and breakage of the portions.

  The second holding claws 72 are disposed between the first holding claws 70 and 71 when viewed from the axial direction of the output shaft 56 (see FIG. 2). That is, the second holding claw 72 is opposed to a gap having a dimension t formed between the first holding claws 70 and 71 in the axial direction of the output shaft 56. The thickness dimension of the second holding claw 72 along the axial direction of the armature shaft 44 is set to the same dimension t as the gap of the dimension t formed between the first holding claws 70 and 71, as shown in FIG. Has been. Accordingly, the first holding claws 70 and 71 and the second holding claws 72 can be easily formed by a combination of slide molds (not shown) having a simple shape.

  As shown in FIG. 5, the second holding claw 72 has a substantially J-shaped cross section, and the base end portion of the second holding claw is connected to the gear housing 51. On the other hand, an engagement claw 72 a that is bent toward the first holding claws 70 and 71 is provided at the tip of the second holding claw 72. Here, the engaging claws 70a, 71a and the engaging claws 72a are opposed to each other from the axial direction of the output shaft 56, whereby the second holding claws 72 together with the first holding claws 70, 71 are elastic fixing members. Hold 80 so that it does not come off.

  4 and 5, an elastic fixing member 80 formed in a predetermined shape by an elastic material such as rubber is held between the first holding claws 70 and 71 and the second holding claws 72. Yes. The elastic fixing member 80 constitutes a first fixing portion in the present invention. As shown in FIG. 5, the elastic fixing member 80 has a substantially U-shaped cross section. The elastic fixing member 80 is hooked by being moved in the extending direction of the fixing surface 10c (in this embodiment, the left-right direction of the vehicle 10) with respect to the motor fixing portion 90. Is provided with an opening 80a having a substantially L-shaped cross section that opens in the moving direction.

  The elastic fixing member 80 includes a first support portion 81 supported by the first holding claws 70 and 71 and a second support portion 82 supported by the second holding claws 72. The first support portion 81 and the second support portion 82 are connected to each other by a connecting portion 83 on the base end side (the right side in FIG. 5) of each of the first holding claws 70 and 71 and the second holding claws 72 to be integrated. It has become.

  As shown in FIG. 7, the width dimension W1 of the first support portion 81 along the axial direction of the armature shaft 44 is set to be larger than the width dimension W2 of the second support portion 82 along the axial direction of the armature shaft 44. (W1> W2). This is because, as shown in FIG. 6, the axis of the armature shaft 44 in each of the first holding claws 70, 71 including the gap of the dimension t rather than the thickness dimension t along the axial direction of the armature shaft 44 in the second holding claw 72. This is because the width dimension along the direction is larger.

  As shown in FIGS. 5 and 7, the engaging claws 70 a and 71 a of the holding claws 70 and 71 are inserted into and engaged with the opposite side of the first support portion 81 to the second support portion 82 side. An engaging recess 81a is provided. The engaging recess 81 a extends in the width direction of the first support portion 81 and is disposed near the tip end portion of the first support portion 81 opposite to the connection portion 83 side.

  A bulging portion 81b that enters a gap having a dimension t formed between the first holding claws 70 and 71 is provided at the center in the longitudinal direction of the engaging recess 81a. The width dimension along the longitudinal direction of the engaging recess 81a of the bulging portion 81b is slightly larger than the gap of the dimension t formed between the first holding claws 70 and 71. Therefore, as shown in FIG. 4, the bulging portion 81b is fitted between the first holding claws 70, 71, and the bulging portion 81b is prevented from falling off between the first holding claws 70, 71. .

  A first mark (mark) 81c is provided on the side of the bulging part 81b opposite to the second support part 82 side. The first mark 81c protrudes from the bulging portion 81b on the opposite side to the second support portion 82 side, and is provided in the protruding direction of the first holding claws 70 and 71 as shown in FIG. It is formed in a substantially rectangular parallelepiped shape so as to extend. The first mark 81 c faces the mounting protrusion 96 provided on the motor fixing portion 90 from the axial direction of the output shaft 56 in a state where the wiper device 14 is positioned at the specified position of the vehicle 10. Yes. That is, when the wiper device 14 is fixed to the vehicle body of the vehicle 10, the operator visually observes the positional relationship between the first mark 81 c and the mounting protrusion 96, so that the wiper device 14 is positioned at a specified position with respect to the vehicle 10. It can be confirmed whether or not. Thereby, the assembly | attachment property to the vehicle 10 of the wiper apparatus 14 is improved.

  As shown in FIG. 7, a pair of tapered surfaces 81 d are provided on the second support portion 82 side of the first support portion 81. These tapered surfaces 81d are provided on both sides in the longitudinal direction of the first support portion 81 with the first mark 81c as the center. Each of the tapered surfaces 81d is formed so that the central portion in the longitudinal direction of the first support portion 81 is the thickest and both the longitudinal sides of the first support portion 81 are thin.

  On the opposite side of the second support portion 82 from the first support portion 81 side, an engagement concave portion 82a into which the engagement claw 72a of the second holding claw 72 enters and engages is provided. The engaging recess 82a extends in the width direction of the second support portion 82, and is disposed near the tip of the second support portion 82 on the side opposite to the connecting portion 83 side.

  On the first support portion 81 side of the second support portion 82, a protruding portion 82b that protrudes toward the first support portion 81 is provided. A gap 82c is formed between the protruding portion 82b and the connecting portion 83 so that the hooking portion 93 provided in the motor fixing portion 90 enters. As a result, as shown in FIG. 5, a wall 82d is formed on the connecting portion 83 side of the protruding portion 82b, and the hook portion 93 is hooked on the wall 82d. That is, the elastic fixing member 80 is hooked on the hook portion 93.

  As shown in FIG. 7, a pair of tapered surfaces 82e are provided on the first support portion 81 side of the protruding portion 82b. These tapered surfaces 82e are provided on both sides in the longitudinal direction of the protruding portion 82b with the first mark 81c as the center. Each taper surface 82e is formed such that the central portion in the longitudinal direction of the protruding portion 82b is the thickest and both the longitudinal sides of the protruding portion 82b are thin. Here, as shown in FIG. 5, the dimension of the gap between the protruding portion 82b and the first support portion 81 is set to S1.

  As shown in FIG. 8, the elastic fixing member 80 has a target shape (symmetry shape) on the left and right sides in the drawing so as not to cause an undercut with the first mark 81c as the center. Accordingly, the elastic fixing member 80 can be easily formed using the molds D1 and D2 that can approach and separate from each other in the direction of the arrow M in FIG.

  As shown in FIG. 9, the motor fixing portion 90 is formed in a substantially box shape by punching a steel plate into a predetermined shape and then bending it at a right angle a plurality of times. The motor fixing portion 90 includes a first attachment portion 91 and a second attachment portion 92, and these first and second attachment portions 91 and 92 are fixed surfaces 10c that form the vehicle body of the vehicle 10 (FIG. 5). It is attached by fixing means such as spot welding.

  Between the first attachment portion 91 and the second attachment portion 92, a hook portion 93 extending in the extending direction of the fixed surface 10c (in the present embodiment, the left-right direction of the vehicle 10) is disposed. Further, a bridging portion 94 is provided between the hook portion 93 and each of the attachment portions 91 and 92 to place the hook portion 93 at a position spaced from the fixed surface 10c. The bridging portion 94 includes a main body portion 94a, a first arm portion 94b, and a second arm portion 94c, and the first and second arm portions 94b and 94c are provided on both sides of the main body portion 94a in the longitudinal direction. Each of them is provided vertically.

  A hooking portion 93 is integrally provided on the opposite side of the main body portion 94a to the fixed surface 10c side, and the hooking portion 93 is provided perpendicular to the main body portion 94a. A first mounting portion 91 is integrally provided on the first arm portion 94b, and the first mounting portion 91 is vertically provided on the opposite side of the hook portion 93 side with respect to the first arm portion 94b. On the other hand, the second arm portion 94c is integrally provided with a second attachment portion 92, and the second attachment portion 92 is provided perpendicularly to the opposite side of the hook portion 93 side with respect to the second arm portion 94c. Yes.

  The length dimension L1 of the first arm portion 94b along the direction intersecting the extending direction of the fixed surface 10c is larger than the length dimension L2 of the second arm portion 94c along the direction intersecting the extending direction of the fixed surface 10c. It is set to a short dimension (approximately one-half dimension) (L1 <L2). As a result, an insertion gap 95 is formed between the first arm portion 94 b and the hook portion 93. The elastic fixing member 80 is attached to the motor fixing portion 90 through the insertion gap 95.

  A mounting projection 96 that protrudes toward the distal end side (lower side in the drawing) of the hook portion 93 is provided at a portion near the second arm portion 94c along the longitudinal direction of the main body portion 94a. The mounting protrusion 96 extends in the short direction of the main body portion 94a, and the cross-sectional shape in a direction intersecting the extending direction of the mounting protrusion 96 is a substantially arc shape. The mounting protrusion 96 is formed at the same time when a steel plate that is a material of the motor fixing portion 90 is punched into a predetermined shape.

  The mounting protrusion 96 is inserted between the protruding portion 82b of the elastic fixing member 80 and the first support portion 81 (gap size S1) when the elastic fixing member 80 is mounted on the motor fixing portion 90. As shown in FIG. 5, the protrusion height S2 of the mounting protrusion 96 from the main body 94a is set to be slightly larger than the dimension S1 between the protrusion 82b and the first support portion 81 (S2>). S1). Accordingly, it is possible to suppress the elastic fixing member 80 from moving with respect to the motor fixing portion 90 after the mounting protrusion 96 is inserted between the protruding portion 82 b and the first support portion 81.

  As shown in FIG. 5, the main body portion 94a and the hook portion 93 are formed in a substantially L-shaped cross section in a direction intersecting with the extending direction of the fixed surface 10c. Thus, the elastic fixing member 80 crosses the moving direction of the elastic fixing member 80 with respect to the motor fixing portion 90 while the elastic fixing member 80 is mounted on the motor fixing portion 90. It covers from the direction to do. Therefore, the elastic fixing member 80 is hooked on the hook portion 93, and movement in the direction intersecting the extending direction of the fixing surface 10c of the elastic fixing member 80 is restricted.

  Here, when the wiper device 14 is fixed to the vehicle body of the vehicle 10, the back side of the mounting protrusion 96, that is, the recessed side of the mounting protrusion 96 can be viewed by an operator. As a result, the operator can determine whether or not the first mark 81c of the elastic fixing member 80 is opposed to the mounting protrusion 96 (second mark) of the motor fixing portion 90 from the axial direction of the output shaft 56, that is, elastic fixing. It can be confirmed whether or not the member 80 is positioned at the normal position with respect to the motor fixing portion 90. Thus, the mounting protrusion 96 of the motor fixing portion 90 also has a function as a mark in the present invention.

  Next, a method for assembling the wiper device 14 formed as described above to the vehicle 10 will be described in detail with reference to the drawings.

  FIG. 10 is a perspective view for explaining a procedure for mounting the first fixing portion on the holding claw, and FIGS. 11 (a), (b), and (c) are explanatory views for explaining a procedure for assembling the wiper device to the vehicle body. Each is shown. In FIG. 11, only the elastic fixing member 80 and the motor fixing portion 90 are shown in order to clearly show the assembling procedure.

[Preparation of wiper device]
First, as shown in FIG. 10, the elastic fixing member 80 is mounted on the gear housing 51, and the wiper device 14 (see FIG. 2) is completed. At that time, the elastic fixing member 80 is elastically deformed as indicated by a broken line arrow (1) in the drawing so that the first support portion 81 and the second support portion 82 of the elastic fixing member 80 are brought close to each other. Accordingly, the elastic fixing member 80 is easily inserted between the engaging claws 70 a and 71 a of the first holding claws 70 and 71 and the engaging claws 72 a of the second holding claws 72.

  Thereafter, as shown by a broken line arrow (2) in the figure, the connecting portion 83 of the elastic fixing member 80 faces the gear housing 51 under the state where the elastic fixing member 80 is elastically deformed. The first support part 81 and the second support part 82 including the first support claws 70 and 71 and the second support claws 72 are mounted. At this time, the engaging claws 70a and 71a enter the engaging recess 81a, and the engaging pawl 72a enters the engaging recess 82a. Further, the bulging portion 81 b is inserted between the first holding claws 70 and 71. Thereby, as shown in FIGS. 4 and 5, the elastic fixing member 80 is attached to the gear housing 51, and the wiper device 14 is completed.

[Fixing work to the car body]
Next, as shown in FIG. 11A, the elastic fixing member 80 of the completed wiper device 14 is extended with respect to the hooking portion 93 of the motor fixing portion 90 in the extending direction of the fixing surface 10c (see FIG. 5). Let it face from the direction of intersection. At this time, the distal end side (the front side in the figure) of the second support portion 82 of the elastic fixing member 80 is brought into contact with the first arm portion 94 b of the motor fixing portion 90. Further, one tapered surface 81 d of the first support portion 81 is placed on the main body portion 94 a of the motor fixing portion 90.

  As a result, the protruding portion 82b of the elastic fixing member 80 can enter the inside of the motor fixing portion 90 from the insertion gap 95, and further, from the opening 80a (see FIG. 5) of the elastic fixing member 80 to the inside of the elastic fixing member 80. In addition, the main body portion 94a and the hook portion 93 of the motor fixing portion 90 can enter.

  Thereafter, the elastic fixing member 80 is moved in the extending direction of the fixing surface 10c (see FIG. 5) with respect to the motor fixing portion 90, as indicated by a broken line arrow (3) in the figure. At this time, since the corner portion CO of the main body portion 94a slides on one tapered surface 81d of the first support portion 81, the elastic fixing member 80 can be easily moved.

  Next, when the elastic fixing member 80 is moved in the direction of the broken line arrow (3) with respect to the motor fixing portion 90 while applying the pressing force F to the elastic fixing member 80 as shown in FIG. The protrusion 96 is guided by one tapered surface 82 e of the second support portion 82 and is inserted between the protruding portion 82 b of the elastic fixing member 80 and the first support portion 81. At this time, the protruding height S2 of the mounting protrusion 96 is set to be slightly larger than the dimension S1 between the protruding portion 82b and the first support portion 81, so the mounting protrusion 96 slightly bites into the protruding portion 82b. .

  Thereafter, as shown in FIG. 11C, the second support portion 82 of the elastic fixing member 80 and the second arm portion 94c of the motor fixing portion 90 are brought into contact with each other, so that the elastic fixing member 80 The first mark 81c and the mounting protrusion 96 of the motor fixing portion 90 are disposed on the axis C. When the operator visually confirms this, the elastic fixing member 80 is positioned at a specified position with respect to the motor fixing portion 90.

  Thereby, as shown in FIG. 5, the hook portion 93 is hooked on the wall portion 82 d of the elastic fixing member 80. That is, the elastic fixing member 80 is hooked on the hook portion 93, and the wiper device 14 is positioned (temporarily fixed) at a specified position where it should be assembled to the vehicle 10. Thereafter, as shown in FIG. 2, the mounting arm portions 60a and 60b of the first and second holder members 15a and 15b are fixed to the vehicle body frames 10a and 10b by fastening bolts FB, respectively. Thereby, the assembly (main fixing) of the wiper device 14 to the vehicle 10 is completed.

  As described above in detail, according to the fixing structure of the wiper device 14 according to the first embodiment, the motor fixing portion 90 is provided with the hook portion 93 extending in the extending direction of the fixing surface 10c of the vehicle body, and the gear housing 51 is provided. The elastic fixing member 80 is provided that is hooked by the hook portion 93 by being moved in the extending direction of the fixed surface 10c and is restricted from moving in the direction intersecting the extending direction of the fixed surface 10c. Thereby, the fixing strength to the vehicle body can be sufficiently ensured without deteriorating the assembling property of the wiper device 14 to the vehicle body.

  Moreover, according to the fixing structure of the wiper device 14 according to the first embodiment, the wiper device 14 includes the first and second wiper members 12 and 13 and the first and second wipers 12 and 13 that swing the wiper members 12 and 13. The first and second holder members 15a and 15b that support the drive shafts 17a and 17b, and the frame member 16 that connects the holder members 15a and 15b to each other are provided. The holder members 15a and 15b are connected by fastening bolts FB. The first and second attachment arm portions 60a and 60b are fixed to the vehicle body. Thereby, since the wiper apparatus 14 does not shift in the extending direction of the fixing surface 10c, it is possible to reliably prevent the elastic fixing member 80 from being detached from the motor fixing portion 90.

  Furthermore, according to the fixing structure of the wiper device 14 according to the first embodiment, the motor fixing portion 90 includes the bridging portion 94 that arranges the hook portion 93 at a position separated from the fixing surface 10c, and the elastic fixing member 80 includes The elastic fixing member 80 has an opening 80 a that opens in the moving direction, and covers the bridging portion 94 and the hooking portion 93 from the direction intersecting the moving direction of the elastic fixing member 80. As a result, rattling of the elastic fixing member 80 with respect to the motor fixing portion 90 is suppressed, and the elastic fixing member 80 can be more reliably prevented from being detached from the motor fixing portion 90.

  Further, according to the fixing structure of the wiper device 14 according to the first embodiment, since the elastic fixing member 80 is formed of an elastic material, vibration generated when the wiper device 14 is driven is hardly transmitted to the vehicle 10. Thereby, the quietness of the vehicle 10 can be improved. On the contrary, the vibration on the vehicle 10 side is also difficult to be input to the wiper device 14. Therefore, the wiper device 14 can be protected from the vibration of the vehicle 10, and the life of the wiper device 14 can be extended.

  Furthermore, according to the fixing structure of the wiper device 14 according to the first embodiment, the elastic fixing member 80 and the motor fixing portion 90 are provided with the first mark 81c for positioning the elastic fixing member 80 at the specified position of the motor fixing portion 90. And a mounting projection 96 (second mark). Thus, the operator can visually confirm the first mark 81c and the mounting protrusion 96, whereby the elastic fixing member 80 can be reliably positioned at the specified position of the motor fixing portion 90. Therefore, the assembly property of the wiper device 14 to the vehicle body can be further improved.

  Next, Embodiment 2 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  12A, 12B, and 12C are diagrams corresponding to FIG. 11 of the second embodiment.

  As shown in FIG. 12, the motor fixing unit 100 according to the second embodiment has an extending direction of the fixing surface 10 c (left and right direction in the figure) as compared with the motor fixing unit 90 (see FIG. 11) of the first embodiment. ) In the shape of a mirror image object. That is, when the motor fixing unit 90 according to the first embodiment is compatible with a wiper device for a right-hand drive vehicle such as a Japanese car, the motor fixing unit 100 is compatible with a wiper device for a left-hand drive vehicle such as a European car. Will be.

  Here, as shown in FIG. 8, the elastic fixing member 80 of the first embodiment is formed in a symmetrical shape with the first mark 81c as the center, so that the motor fixing portion 100 according to the second embodiment has Even if it applies, it can apply as it is, without changing a shape etc. In addition, the mounting direction of the elastic fixing member 80 with respect to the motor fixing portion 100 is opposite to that in the first embodiment, as indicated by a broken line arrow (4) in the figure.

  Also in the second embodiment configured as described above, the same operational effects as those of the first embodiment can be obtained.

  Next, Embodiment 3 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 13 is a perspective view for explaining the third embodiment.

  As shown in FIG. 13, in the third embodiment, the shape of the wiper motor 110 is different from that in the first embodiment. Specifically, the wiper motor 110 includes a motor unit 111 and a gear unit 112, and controls the rotation of the output shaft 114 in the forward and reverse directions inside a gear housing (housing) 113 that forms the gear unit 112. A control device 115 is accommodated. Thus, the wiper motor 110 is a so-called reversing wiper motor that can rotate the output shaft 114 in the forward direction or the reverse direction. Therefore, the wiper member (not shown) can be swung only by the wiper motor 110. Therefore, the link mechanism (refer FIG. 2) which converts rotational motion into rocking motion is not provided.

  The gear housing 113 of the wiper motor 110 has a pair of mounting arm portions 116 (only one is shown in the figure) to which the rubber bush RB is mounted, a pair of first holding claws 70 and 71 and one second holding claw (see FIG. (Not shown). The wiper motor 110 is fixed to the left and right vehicle bodies (driver's seat side and passenger's seat side) of the vehicle 10 (see FIG. 1), and swings each wiper member corresponding to each wiper motor 110. ing. That is, the wiping pattern of these wiper motors 110 is a counter wiping type.

  Also in the third embodiment configured as described above, the same function and effect as in the first embodiment can be achieved.

  It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, in each of the above embodiments, as shown in FIG. 9, the hook portion 93 is formed by being bent in the protruding direction of the mounting protrusion 96. However, the present invention is not limited to this, and the hook portion is mounted. The protrusion 96 may be bent in the opposite direction to the protruding direction.

  Furthermore, as shown in FIG. 5, the cross-sectional shape in the direction intersecting with the extending direction of the fixing surface 10c of the main body portion 94a and the hooking portion 93 is formed in a substantially L shape. Not only this but the cross-sectional shape of the direction which cross | intersects the extending direction of the fixed surface 10c may form in other shapes, such as a substantially T shape. In short, if the elastic fixing member can be mounted by moving in the extending direction of the fixing surface with respect to the motor fixing portion, and the elastic fixing portion can be made immovable in the direction crossing the extending direction of the fixing surface, Any shape is acceptable.

  In each of the above embodiments, the wiper device fixing structure according to the present invention is applied to the front side (front side) of the vehicle 10. However, the present invention is not limited to this, and the rear of the vehicle 10 is not limited thereto. It can also be applied to the side (rear side).

10 Vehicle 10a Body frame (vehicle body)
10c Fixed surface (car body)
11 front windshield 11a first wiping range 11b second wiping range 12 first wiper member 12a first wiper blade 12b first wiper arm 13 second wiper member 13a second wiper blade 13b second wiper arm 14 wiper device 15a first holder member 15b 2nd holder member 16 Frame member 17a 1st drive shaft 17b 2nd drive shaft 18a 1st drive lever 18b 2nd drive lever 19 Connecting rod 20 Drive rod 21 Crank arm 30 Wiper motor 31 Fastening screw 32 Fastening bolt 40 Motor part 41 Yoke 42 Permanent magnet 43 Armature 44 Armature shaft 45a, 45b Worm 46 Coil 47 Commutator 48 Brush 50 Gear part 51 Gear housing (housing)
52 gear cover 52a connector connecting portion 53a, 53b counter gear 54a, 54b large diameter tooth portion 55a, 55b small diameter tooth portion 56 output shaft 57 spur gear 57a tooth portion 60a first mounting arm portion (second fixing portion)
60b 2nd attachment arm part (2nd fixing | fixed part)
70, 71 First holding claw 70a, 71a Engaging claw 72 Second holding claw 72a Engaging claw 80 Elastic fixing member (first fixing portion)
80a Opening part 81 1st support part 81a Engagement recessed part 81b Expansion part 81c 1st mark (mark)
81d Tapered surface 82 Second support portion 82a Engaging recess 82b Protruding portion 82c Gap 82d Wall portion 82e Tapered surface 83 Connecting portion 90 Motor fixing portion 91 First mounting portion 92 Second mounting portion 93 Hooking portion 94 Bridging portion 94a Main body portion 94b First arm portion 94c Second arm portion 95 Insertion gap 96 Mounting protrusion (mark)
DESCRIPTION OF SYMBOLS 100 Motor fixing part 110 Wiper motor 111 Motor part 112 Gear part 113 Gear housing 114 Output shaft 115 Control apparatus 116 Mounting arm part CO Corner part D1, D2 Mold FB Fastening bolt (fastening member)
RB Rubber bush S Fixing screw SD Deceleration mechanism LRP Lower reverse position URP Upper reverse position

Claims (5)

A wiper device fixing structure for fixing a wiper device having a wiper motor having a housing to a motor fixing portion provided on a fixing surface of a vehicle body,
A hook portion provided in the motor fixing portion and extending in an extending direction of the fixing surface;
A first fixing portion that is provided in the housing and is hooked by the hooking portion by moving in the extending direction of the fixing surface, and movement in a direction intersecting the extending direction of the fixing surface is restricted;
A fixing structure for a wiper device. The wiper device fixing structure according to claim 1,
The wiper device is
A pair of wiper members;
A pair of holder members that support a drive shaft that swings the pair of wiper members;
A frame member for connecting the pair of holder members to each other;
With
The wiper device fixing structure, wherein the pair of holder members include a second fixing portion fixed to the vehicle body by a fastening member. The fixing structure of the wiper device according to claim 1 or 2,
The motor fixing portion includes a bridging portion that arranges the hooking portion at a position spaced from the fixing surface.
The first fixing portion has an opening that opens in a moving direction of the first fixing portion, and covers the bridging portion and the hooking portion from a direction intersecting with the moving direction of the first fixing portion. The fixed structure of the device. In the fixing structure of the wiper device according to any one of claims 1 to 3,
The first fixing portion is a fixing structure of a wiper device formed of an elastic material. In the fixing structure of the wiper device according to any one of claims 1 to 4,
The wiper device fixing structure, wherein the first fixing part and the motor fixing part include a mark for positioning the first fixing part at a predetermined position of the motor fixing part.

Images