JPH051333U - Seat reclining device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a seat reclining device capable of locking and unlocking a seat back by operating a lower tooth through an operating member by operating an electric switch. [Structure] The seat backs S and B are locked and unlocked by driving a lock mechanism F by an electric drive means G.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a seat reclining device, and particularly to a two-door type automobile. Relates to a latch type seat reclining device provided on a front seat.

[0002]

[Prior art]

  This type of seat reclining device is a seat reclining device installed on the side of the front seat. The arm with the seat back is pivotally attached to the base plate and The provided upper part and the lower tooth that can be engaged with and disengaged from this upper part , A lock mechanism consisting of an operating member that operates this lower tooth, and a base The lower tooth can be moved through the actuating member by operating the operating lever that is pivotally attached to the plate. Can be activated to lock and unlock lower teeth against upper parts I am trying.

[0003]   That is, unlock the front seat back by operating the operating lever. The seat back can be tilted forward, so that the two doors This makes it easy to get on and off the rear seats of a type of vehicle.

[0004]

[Problems to be solved by the device]

  However, in the above-mentioned conventional seat reclining device, the passengers get on and off the rear seats. In order to tilt the seat back of the front seat forward, If you have luggage and are unable to handle your hand, It is difficult to operate the lever, and it takes time and effort to operate the operation lever when it rains. Had problems such as being easily wet with rain.

[0005]   This invention has been made to solve the above-mentioned problems of the prior art. The seat back can be locked and locked simply by operating the electrical switch. It is to provide a seat reclining device capable of releasing the brake.

[0006]

[Means for Solving the Problems]

  In order to achieve the above object, the seat reclining device according to claim 1 of the present invention Is an arm that has a seat back on a base plate provided on the side of the seat. And the upper part provided on this arm, and this upper part. A lower tooth that can be engaged with and disengaged from the source, and an operating member that operates this lower tooth. A seat reclining device including a lock mechanism comprising: The seat back is locked and locked by driving the The feature is that it is canceled.

[0007]   Further, in the seat reclining device according to claim 2, the electric drive means is the It has a sector gear attached to the operating member and a gear that meshes with this sector gear It is characterized by being composed of a motor unit.

[0008]   Further, in the seat reclining device according to claim 3, the electric drive means includes: It is characterized in that a solenoid is connected to the actuating member.

[0009]

[Action]

  According to this invention, the lock mechanism is driven by the electric drive means. To turn on and off the switch electrically connected to the electric drive means. Actuating the lower tooth via the moving member to lock and unlock the seat back It can be performed.

[0010]   Therefore, if this device is installed on the front seat of a 2-door type automobile, In this case, the front seat side seat back can be easily pushed forward, and the rear seat It is extremely easy to get on and off.

[0011]

【Example】

  The present invention will be described below with reference to the embodiments shown in the drawings.

[0012]   1 to 4 relate to a first embodiment of the present invention, and FIG. 1 shows a seat reclining device. 2 is an explanatory view of the front of the table, FIG. 2 is an explanatory view of the operation when locked, and FIG. 3 is a view when unlocked. FIG. 4 is a diagram for explaining the opening operation, and FIG. 4 is a switch of electric drive means in a two-door type automobile. FIG. 3 is a perspective explanatory view showing an arrangement example of FIG.

[0013]   In the figure, E is the front seat of the two-door type automobile 100 shown in FIG. The seat reclining device installed on the outer side of the seat 101 An arm 20 having seat backs S and B on a base plate 10 provided in the section And the upper part 30 provided on the arm 20 The lower tooth 40 that can be engaged with and disengaged from the upper tooth 30 and this lower tooth 40 are made. A lock mechanism F including an actuating member 50 for moving is provided.

[0014]   Then, by driving the lock mechanism F by the electric drive means G, the seat The feature is that the back S and B are locked and unlocked.

[0015]   Also, in the first embodiment of the present invention, the electric drive means G is attached to the operating member 50. Sector gear 60 and a pinion that is an example of a gear that meshes with the sector gear 60. It is composed of a motor unit 70 having an ON gear 73.

[0016]   Next, the structure of the first embodiment of the present invention will be described in more detail.

[0017]   The base plate 10 is fixed to the side portions of the seat cushions S and C. The first pivot 31 planted in the base plate 10 has an arcuate tooth portion 30 at the lower edge portion. The upper part 30 having a is pivotally mounted. This upper part 30 , The arm 20 fixed to the side of the seat back S / B is integrally attached. The arm 20 is wound around the first pivot 31 and both ends thereof are connected to the first pivot 31 and the arm. The spiral springs 21 that are respectively locked to the locking pins 32 that are planted in the upper tooth 30 Therefore, it is urged to rotate counterclockwise. In addition, the base plate 10 has a first An arcuate groove 10a is formed around the axis of the pivot 31, and the groove 10a is formed. By inserting the pin 33 planted in the upper part 30 into the arm 20, The rotation of is restricted.

[0018]   The lower tooth 40 is attached to the second pivot 41 that is planted in the base plate 10. And is disengaged from the tooth portion 30a of the upper part 30 at the upper edge of the free end thereof. The tooth portion 40a is formed. Also, at the lower edge of the lower tooth 40 on the free end side, Protrusions 40c and 40d are formed on both sides of the portion 40b.

[0019]   The actuating member 50 is pivotally attached to a third pivot 51 that is planted in the base plate 10. At the free end thereof, the concave portion 40b and the convex portions 40c, 40d of the lower tooth 40 are formed. A cam portion 50a that engages with is formed. Further, the actuating member 50 includes a sub press. The seat 52 is integrally fixed, and the sub-plate 52, the operating member 50, and the The first to hold the artice 40, the upper part 30 and the arm 20 , The holder plate 11 is fixed to the ends of the second, third pivots 31, 41, 51. ing. Then, it was mounted between the sub plate 52 and the holder plate 11. The tension spring 53 causes the operating member 50 to rotate integrally with the sub-lever 52 in the counterclockwise direction. It is urged to rotate.

[0020]   The electric drive means G is composed of a sector gear 60 and a motor unit 70. And the sector gear 60 is a third gear that protrudes above the holder plate 11 in the figure. The sub that is pivotally attached to the pivot 51 and extends outward from the outer peripheral edge of the holder plate 11. It is integrally fixed to the plate 52, and the axial center of the third pivot shaft 51 is attached to the outer peripheral edge thereof. A circular arc-shaped tooth portion 60a as a center and a concave portion 60b continuous with the tooth portion 60a Each is formed.

[0021]   The motor unit 70 includes a motor 71, a reduction gear mechanism 72, and a pinion gear 7 It consists of 3. The motor 71 is mounted on the base plate 10 by a mounting shaft 74. It is fixed on the attached support bracket 75, and this support bracket 75 and The support bracket 7 is supported by a tension spring 76 mounted between the support bracket 7 and the base plate 10. 5 is urged to rotate counterclockwise. Also, on the end surface of the support bracket 75, A stopper 77 fixed to the base plate 10 is in contact with the stopper 77. -77 restricts the clockwise rotation of the support bracket 75, and Prevents rattling.

[0022]   The reduction gear mechanism 72 includes a small diameter bevel gear 7 fixed to an output shaft 78 of the motor 71. 9 and the bevel gear 79 are meshed with each other, and the support bracket is orthogonal to the output shaft 78. A large diameter bevel gear 82 fixed to a support shaft 81 pivotally supported by It The pinion gear 73 is arranged on the lower surface side of the support bracket 75, and the support shaft 81 And is arranged at a position meshing with the sector gear 60.

The motor 71 is connected to a power source via a switch SW. The switch SW ₁ is near the seat reclining device E, the switch SW ₂ is on the front door 102, and the switch SW ₃ is on the rear seat 103 side. Each of them is arranged on the vehicle body 104.

[0024]   Next, the operation of the first embodiment of the present invention will be described.

[0025]   1 and 2 show a state in which the lock mechanism F is locked. The cam portion 50a of the actuating member 50 is attached to the protrusion 40c of the tooth 40 by the spring force of the tension spring 53. The lower tooth 40 is rotated clockwise by The portion 40a meshes with the tooth portion 30a of the upper part 30 so that the seat backs S and B are rotated. Has been locked. Further, the pinion gear 73 is sectored by the spring force of the tension spring 76. It is pressed into mesh with the tooth portion 60a of the gear 60.

[0026]   In order to tilt the seat backs S and B forward from this locked state, the lock mechanism F is rotated. To release the lock, switch SW is turned ON. Then, the motor 71 rotates , The pinion gear 73 rotates counterclockwise via the bevel gears 79 and 82. , The sector gear 60 rotates clockwise. By this rotation, the operating member 50 also The cam portion 50a is rotated clockwise, and the cam portion 50a is recessed in the lower tooth 40. When engaging the convex portion 40d, the lower tooth 40 rotates counterclockwise, The tooth portions 30a, 40a of the tooth 30 and the lower tooth 40 are disengaged from each other, The cam 20 is rotated counterclockwise by the spring force of the spiral spring 21, and as shown in FIG. It becomes tilted. At this point, the pinion gear 73 has the recess 60b of the sector gear 60. The sector gear 60, that is, the actuating member 50, As described above, it is prevented from rotating clockwise.

[0027]   In this way, after the seat backs S and B are tilted forward, the seat backs S and B are re-inclined. To lock B, if the switch SW is in the OFF state, the seat back S ・ B Rotate clockwise. Then, the tooth portion 30a of the upper part 30 is formed. The non-moving portion moves on the tooth portion 40a of the lower tooth 40, and the tooth portion 30a moves to the tooth portion 4a. The motor 71 stops when it moves to the position where it meshes with 0a. Since the gear 73 is in the free state, the sector gear 60 is also the pinion gear 7. However, the sub-plate 52 is pulled out. It is rotated counterclockwise by the spring force of the tension spring 53, and at the same time, the operating member 50 is also rotated counterclockwise. The cam part 50a pushes up the convex part 40c of the lower tooth 40 to raise the lower part. Since the tooth 40 is rotated clockwise, the upper part 30 and the lower tooth are rotated. To lock the seat backs S and B by engaging the tooth portions 30a and 40a of the seat 40 with each other. You can

[0028]   If the switch SW is on, the seat backs S and B are locked as desired. Turn to the position to turn off the switch SW. Then, the same movement as above The upper tooth 40 is pushed up, and each of the upper tooth 30 and the lower tooth 40 is pushed up. The tooth portions 30a and 40a mesh with each other, and the seat backs S and B can be locked. If you only want to adjust the tilt angle, turn on the switch SW to unlock. Rotate the seat back S / B to the desired position and turn off the switch SW. Can be locked.

As described above, according to this invention, the seat backs S and B can be locked and unlocked by operating the switch SW, and the seat backs S and B of the front seat 101 can be locked. The tilt angle can be easily adjusted by operating the switch SW ₁ .

Further, when it is desired to incline the seat back SB of the front seat 101 to get on the rear seat 103, the switch SW ₂ is operated. As a result, when carrying luggage and having difficulty in handing, the seat back SB of the front seat 101 can be tilted forward only by operating the switch SW ₂ of the front door 102, so that the passenger can get on the rear seat 103. Can be done easily. Further, by this, it is possible to quickly get on the rear seat 103 without getting wet by rain when it rains.

Further, when it is desired to incline the seat back SB of the front seat 101 in order to get out of the rear seat 103, it can be easily performed by operating the switch SW ₃ of the vehicle body 104 on the rear seat 103 side. .

[0032]   5 to 7 relate to a second embodiment of the present invention, and FIG. 5 shows a seat reclining device. 6 is a front explanatory view of the table, FIG. 6 is an explanatory view of the operation when locked, and FIG. 7 is a view when unlocked. FIG. 11 is an explanatory diagram of an operation of pulling.

[0033]   In the seat reclining device E according to the second embodiment of the present invention, the electric drive means G is configured by connecting the solenoid 90 to the operating member 50.

[0034]   The solenoid 90 is fixed to the base plate 10, and the plunger 91 It is slidably mounted. Further, the solenoid 90 is powered by a switch SW. It is connected to the. The sub plate 54 is integrally fixed to the operating member 50. , The tension spring 55 mounted between the upper free end and the base plate 10 It is biased to rotate clockwise. Also, it is formed at the lower free end of the sub plate 54. The hook portion 91a formed at one end of the plunger 91 is inserted into the elongated hole 54a. Has been.

[0035]   In the seat back S / B locked state shown in FIGS. 5 and 6, the plunger 91 is not rotated. It is projected outward by the spring force of a compression spring (not shown) built into the renoid 90. So that the actuating member 50 is moved through the sub-plate 54. Rotates counterclockwise to lock the seat backs S and B as in the first embodiment. It From this seat back S / B locked state, the seat back S / B lock shown in FIG. To release the lock, the switch SW is turned on. Then the solenoid 90 The plunger 91 is excited to be attracted, which causes the sub plate 54 to pass through. As a result, the operating member 50 rotates clockwise, and the seat backs S and B are moved in the same manner as in the first embodiment. Can be tilted forward.

[0036]   Other configurations and operations are similar to those shown in the first embodiment, and the description thereof is omitted. To do.

[0037]

[Effect of device]

  As described above, according to the present invention, the lock mechanism is driven by the electric drive means. By doing so, the switch electrically connected to the electric drive means is turned on and off. Lock the seat back by operating the lower tooth through the operating member. And unlocking can be performed. Therefore, this device is a 2-door type When mounted on the front seat of a moving vehicle, the seat back on the front seat side is tilted forward. As a result, the operation becomes easy, and the passenger can get in and out of the rear seat very easily.

[Brief description of drawings]

FIG. 1 is a front explanatory view of a seat reclining device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation when locked.

FIG. 3 is an explanatory diagram of an operation when unlocking the same.

FIG. 4 is a perspective explanatory view showing an example of arrangement of switches of electric drive means in a two-door type automobile.

FIG. 5 is a front view showing a seat reclining device according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram of an operation when locked.

FIG. 7 is an explanatory diagram of an operation when unlocking the same.

[Explanation of symbols]

E Seat reclining device F Lock mechanism G Electric drive means S / C Seat cushion S / B Seat back SW switch SW ₁ switch SW ₂ switch SW ₃ switch 10 Base plate 20 Arm 30 Upper part 30a Teeth 40 Lower tooth 40a Teeth 50 Operating member 50a Cam portion 52 Sub plate 54 Sub plate 60 Sector gear 70 Motor unit 71 Motor 72 Reduction gear mechanism 73 Pinion gear 75 Support bracket 79 Bevel gear 82 Bevel gear 90 Solenoid 91 Plunger 100 Two-door type automobile 101 Front seat 102 Front door 103 rear seat 104 vehicle body

Claims (3)

[Scope of utility model registration request] 1. An arm having a seat back is pivotally attached to a base plate provided on a side portion of the seat,
A seat reclining device comprising a lock mechanism including an upper part provided on the arm, a lower tooth engageable with and disengageable from the upper part, and an operating member for operating the lower tooth, wherein the lock mechanism is electrically driven. The seat reclining device is characterized in that the seat back is locked and unlocked by being driven by. 2. The seat reclining device according to claim 1, wherein the electric drive means is composed of a sector gear mounted on the actuating member and a motor unit having a gear meshing with the sector gear. 3. The seat reclining device according to claim 1, wherein the electric drive unit is configured by connecting a solenoid to the actuating member.