JP2834401B2 - Seat equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism for rotating a seat by 180 degrees, supporting the seat on a base in a reversible manner, and restraining the seat at each reversing position, and a driving mechanism for rotating the seat. A seat device comprising a mechanism.

[0002]

2. Description of the Related Art As a conventional seat apparatus, there is, for example, one disclosed in Japanese Utility Model Laid-Open Publication No. 5-26598 and its specification. That is, in the same publication, a large gear is provided on the seat side, while a small gear driven by a motor is provided on the base side, and the large gear is rotated by the small gear to reverse the seat by power. Techniques are disclosed. In the prior art, a lock mechanism for restraining the seat is provided, and a dedicated solenoid is provided to release the lock mechanism.

[0003]

However, in such a conventional technique, a dedicated solenoid is provided for unlocking the lock mechanism, and the solenoid requires a considerable output and not only wastes power but also consumes power. The operation noise is loud and uncomfortable, and the solenoid is located at a position distant from the drive mechanism, so the wiring is long and the assembly is complicated, and it is easy to cause a failure such as disconnection. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems of the prior art. When a seat is turned over using the power of a motor, unlocking and rotation driving are performed by the power of one motor. And a switching device such as a solenoid with a small output may be used for converting the driving force, so that the noise can be reduced, and the electric device can be installed in a concentrated manner to provide a seat device that can be easily assembled. It is intended to be.

[0005]

The gist of the present invention for achieving the above object lies in the following section. A locking mechanism (180) that rotates the rotary seat plate (12) supporting the seat portion (11) by 180 degrees and supports it on the base (30) in a reversible manner, and holds the rotary seat plate (12) at each reversing position. 40) and a drive mechanism (50) for rotating the rotary seat plate (12), wherein one of the base (30) and the rotary seat plate (12) is provided with a motor (M). And the motor (M)
A drive gear (55) driven by the drive gear (55) is provided. On the other hand, a drive gear (55)
5) form an engaged portion (16) with which the drive mechanism (50) is engaged with the motor (M), the unlocking pulley (54), the drive gear (55), and the motor ( A switching member (56) for selectively transmitting the output of M) to the unlock pulley (54) or the drive gear (55).
And a switching drive member (60) for switching the switching member (56). The unlocking pulley (54) is freely rotatable around the output shaft 53 of the motor (M). And a winding portion (54a) of a release cable (59) extending to the lock mechanism (40), and the drive gear (55) is provided with an output of the motor (M). The switching member (56) is fitted to the shaft (53) so as to freely rotate, and is fitted to the output shaft (53) of the motor (M) so as to be capable of rotating power transmission. The switching member (54) is provided so as to be movable in the axial direction of the output shaft (53) between a lock release position engaged with the drive gear (55) and a rotational drive position engaged with the drive gear (55). Engaging dogs (56) on both sides of
a, 56b) and the switching member (5) of the unlocking pulley (54) and the drive gear (55).
The seat is characterized in that engaged dogs (54b, 55a) that engage with the engaging dogs (56a, 56b) so as to be able to transmit a rotational force are protrudingly provided on one side surface facing each of (6). apparatus.

[0006]

[0007]

In the seat device 20, the rotary seat plate (12) supporting the seat portion (11) can be turned by 180 degrees to assume inverted positions, and at each inverted position, the rotary seat plate (12) The position is restrained by the lock mechanism (40). In the case of reversing, first, the restraint by the lock mechanism (40) is released, and then the rotary seat plate (12) is rotated and rotated by 180 degrees, and the lock mechanism (40) is again rotated at the reversed position. Hold in position.

[0008] A rotary seat plate (12) for supporting the seat portion (11).
Can be reversed and rotated by the power of the driving mechanism (50). That is, the switching member (56) is connected to the rotary seat plate (1).
When the motor (M) is activated, the output of the motor (M) is switched to the side where the output of the motor (M) is transmitted to the unlock pulley (54).
4) is driven, whereby the lock mechanism (40) is released and the rotary seat plate (12) can rotate.

After the lock mechanism (40) is released,
When the switching member (56) is switched by the switching drive member (60) to the side where the output of the motor (M) is transmitted to the drive gear (55), the output of the motor (M) is transmitted to the drive gear (55), and the motor is driven. When the drive gear (55) is rotationally driven by (M), the other engaged portion (16) disposed around the rotation axis is driven to rotate, and is rotated by the power of the motor (M). The seat plate (12) is rotated. When the rotary seat plate (12) supporting the seat portion (11) rotates 180 degrees and comes to a predetermined position, the lock mechanism (40) restrains the rotary seat plate (12),
The rotating seat plate (12) is held at this position.

More specifically, the unlocking pulley (54) is loosely fitted to the output shaft (53) of the motor (M), and is engaged with the unlocking pulley (54) at the start of the reverse rotation. The output of the motor (M) can be transmitted through the switching member (56) at the corresponding unlock position, and when the unlock pulley (54) is rotated by the activation of the motor (M), winding is performed. The locking mechanism (40) is released by the release cable (59) being entangled and pulled by the portion (54a). During this time, the drive gear (5
5) idles with respect to the output shaft (53) of the motor (M), and no driving force is transmitted.

When the lock mechanism (40) is released, the switching member (56) is moved in the axial direction of the output shaft (53) by the switching drive member (60) and disengages from the unlocking pulley (54). Thus, the rotation driving position is switched to the rotation driving position to be engaged with the driving gear (55). At this time, the switching member (56)
Are engaged with the engaged dog (55a) of the drive gear (55) so as to be able to transmit a rotational force. By releasing the lock release pulley (54),
The release cable (59) is pulled from the lock mechanism (40) side, and the lock release pulley (54) returns to the original position,
The lock mechanism (40) is finally capable of being restrained, but is not restrained in its original position.

In order not to be restrained, for example, when the lock is released, the rotary seat plate (12) is slightly displaced so as not to return to the original position, so that it cannot be engaged with the lock mechanism (40). When returning to the original position, the lock mechanism (40) may be returned by a return path that cannot be engaged,
In the first stage, the engagement is disabled in the first stage, and the rotating seat plate (1
This is performed by bringing the second stage into a restrainable state before returning from the inverted position.

When the output shaft (53) of the motor (M) is rotated, the driving force is transmitted to the drive gear (55), and the other shaft disposed around the rotation shaft as described above is rotated. The engaging portion (16) is driven to rotate, and the rotary seat plate (12) is rotated by the power of the motor (M). When the rotary seat plate (12) is rotated by 180 degrees and comes to a predetermined position, the lock mechanism (40) restrains the rotary seat plate (12) and supports the seat portion (11) at that position. 12) is held. In the held state, the switching driving member (60) moves the switching member (56) to the opposite side in the axial direction of the output shaft (53), and the switching member (56) is disengaged from the driving gear (55) to unlock. It is held in an unlocked position that engages the pulley (54). At this time, the engagement dog (56a) of the switching member (56)
The lock release pulley (54) is engaged with the engaged dog (54b) so as to be able to transmit a rotational force.

When the rotary seat plate (12) supporting the seat (11) is reversed from this position, the motor (M) is started to rotate in the reverse direction. Then, unlock release pulley (5
4) is rotated and the release cable (5
The lock mechanism (40) is released by being entangled in 9) from the opposite direction and pulled. Subsequent operations are the same, except that the rotation direction of the motor (M) and the rotating seat plate (12) supporting the seat (11) are different.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIGS. 8, 9, and 10, for example, a three-seat seat 10 is connected to a train, and a seat device 20 is mounted on a base 30 so that a seat 11 of the seat 10 can be rotated by 180 degrees. I support it. The seat 10 is provided with backrests 15, 15 and 15 which can be individually raised and lowered on a seat 11 having three seats, and each backrest 15 is a storage for use by a occupant of a rear seat. A table T is provided.

As shown in FIG. 1 and FIG.
Reference numeral 0 denotes a configuration in which the rotating seat plate 12 holding the seat portion 11 is supported on a base 30 fixed to the floor by a pivoting mechanism 21 so as to be able to turn 180 degrees and be inverted. A locking mechanism 40 for restraining the rotary seat plate 12 at a position;
And a drive mechanism 50 for rotating the drive mechanism 2.

As can be seen in FIG. 5, the pivot mechanism 21 is formed by clamping the inner edge of a circular hole 13 formed in the rotary seat plate 12 with rotary support plates 22 and 23 fixed to a base 30. The rotation support plates 22 and 23 are fixed to the support surface 31 of the base 30. Leg 3 fixed on the floor from the support surface 31
2, 32 are extended. Cushion coil springs 33a, 33b that receive stopper protrusions 14a, 14b extending from both ends of the rotary seat plate 12, respectively, are attached to one end of the support surface 31 of the base 30.

The lock mechanism 40 is provided on the support surface 3 of the base 30.
A foot pedal 41 is pivotally supported at one end by a pivot 41a,
Attach the lock pin 42 to the middle part of the foot pedal 41,
The lock end 42a of the lock pin 42 is disposed so as to protrude and retract from the surface of the end of the support surface portion 31 by pushing or releasing the foot end 41b of the end of the foot pedal 41.
A locked plate 1 having a lock hole into which a lock end 42a is inserted is provided at both ends of a rotary seat plate 12 that supports the seat portion 11.
6a and 16b are fixedly provided, and the foot pedal 41 is urged by an urging spring 43 in the direction in which the lock end 42a of the lock pin 42 projects.

As shown in FIG. 1, the support surface 3
1 includes a motor M and a driving gear 5 driven by the motor M.
5, and the engaged portion 1 with which the drive gear 55 meshes along a circumference around the reversing rotation axis S of the rotary seat plate 12.
6 are formed as rows of perforations.

As shown in FIG. 1 to FIG.
Includes a motor M, an unlocking pulley 54 driven by the motor M, the driving gear 55, and a switching member 56 for selectively transmitting the output of the motor M to the unlocking pulley 54 or the driving gear 55. , Switching member 5
6 and a switching drive member 60 for switching and moving.

As can be seen from FIGS. 1, 2, 3 and 7, the relay shaft member 52 is attached to the drive shaft M1 of the motor M by the key 52.
a so that the rotation can be transmitted. Relay shaft member 5
An output shaft 53 is connected to and extended from the end of the second shaft so that rotation can be transmitted by a pin 53a.

The lock release pulley 54 is provided so as to be freely rotatable with the output shaft 53 of the motor M, and is provided with a lock mechanism 40.
The engagement dog 54 is provided on the side surface of the flange of the winding cable 54a.
b and a rotation amount stopper 54c are protruded. The release cable 59 extends to the lock mechanism 40 at the end of the support surface 31 of the base 30, and the pivot 41 of the foot pedal 41.
a to the connection end 44 extending to the opposite side. The lock release pulley 54 is disposed so as to contact the contact protrusion 51 provided at the end of the motor M to regulate the rotation angle of the lock release pulley 54 to a predetermined amount (see FIG. 6).

The drive gear 55 is rotatably fitted to the output shaft 53 of the motor M, and engaged dogs 55a, 55a protrude from the side surface on the unlock pulley 54 side. The switching member 56 has a groove 56c formed between the flanges on both sides having the engagement dogs 56a and 56b, and the central shaft of the groove 56c is fitted to the output shaft 53 of the motor M by a pin 53b so as to be able to transmit power. , And is engaged with the pin 53b by an elongated hole 56d in the axial direction, and by being located at both ends of the elongated hole 56d, the engagement dog 56a protruding from the side surface is engaged with the engaged dog of the unlock pulley 54. The unlocking position engaging with the engagement gear 54b and the other engagement dog 56b
Is provided in such a manner as to be movable in the axial direction of the output shaft 53 between the rotation driving position for engaging with the engaged dog 55a.

A switching drive member 60, which is an electromagnetic solenoid, is disposed adjacent to the switching member 56. As can be seen from FIG. 4, a relay rod 62 is connected to the advancing / retreating end 61 of the switching drive member 60, and a switching rocking member 63 is disposed near the distal end of the relay rod 62 so as to be pivotally supported by a pivot 63a.
The tip of the relay rod 62 is connected to the base of the switching rocking member 63. The operating end 64 of the switching rocking member 63 is inserted into the groove 56c of the switching member 56, and the operating member 64 is rocked so that the switching member 56 is driven to be switched between the unlocked position and the rotational driving position. I have. Since the switching member 56 is merely moved, the switching drive member 60 may be small.

The relay rod 62 of the switching drive member 60
If the dog is constituted by a spring member such as a coil spring which can be extended and contracted instead of a rod, it is possible to escape when the dog hits without fitting. Further, as can be seen from FIG. 2, a terminal board 65 for controlling an electric system to the drive mechanism 50 is mounted on the leg 32 near the drive mechanism 50.

Next, the operation will be described. In the seat device 20,
The rotating seat plate 12 supporting the seat portion 11 is rotated by 180 degrees, so that the backrest portion 15 can take an inverted position in which the seat back portion 15 faces in the opposite direction. At each reversing position, the rotary seat plate 12 is restrained at that position by the lock mechanism 40.

Seat 1 in the position of FIGS. 1 and 2
When manually reversing 0, first the foot end 41b of the foot pedal 41 is depressed to release the lock by the lock mechanism 40. In other words, when the foot pedal 41 is depressed and the foot pedal 41 rotates clockwise about the pivot 41a in FIG. 2, the lock pin 42 is pulled, and the lock end 42a is retracted downward and comes out of the locked plate 16a. The seat plate 12 is released from the restraint and can be rotated. At this time, the deflected cushion coil spring 33a pushes the stopper projection 14a to rotate a small amount, so that the foot pedal 41 is released and the lock pin 42 of the lock pin 42 is released.
Even if a protrudes, it does not fit into the locked plate 16a and is not locked again.

Next, the rotary seat plate 12 for supporting the seat portion 11 is rotated and rotated by 180 degrees, and when it comes to the inverted position, the stopper projection 14 is attached to the cushion coil spring 33b.
When the cushion coil spring 33b comes to a predetermined reversal position while bending, the lock end 42a of the lock pin 42 comes to the position of the locked plate 16b, and once retracts, projects and locks. The rotary seat plate 12 is inserted into the locking hole of the plate 16b and is again restrained and held at the inverted position by the lock mechanism 40.

The rotary seat plate 12 which supports the seat portion 11 can be turned in the reverse direction by the power of the drive mechanism 50. That is, the unlock pulley 54 is loosely fitted to the output shaft 53 of the motor M, and when the reversal rotation is started, the motor is switched via the switching member 56 at the unlock position engaged with the unlock pulley 54. The output of M can be transmitted. That is, the switching member 56 is switched to the side for transmitting the output of the motor M to the unlocking pulley 54 when the rotating seat plate 12 is restrained,
Of the engaged dog 54b and the engaging dog 56 of the switching member 56
a is engaged.

When the motor M is started, the switching member 56 is rotationally driven to drive the unlocking pulley 54. When the unlocking pulley 54 is rotated, the winding portion 54a
The lock mechanism 40 is released by being pulled and pulled by the release cable 59.

That is, when the release cable 59 is pulled, the connecting end 44 is pulled in the lock mechanism 40, and the foot pedal 41 rotates clockwise in FIG. Since the pin 42 is pulled and the lock end 42a is retracted downward and comes out of the locked plate 16a, the rotary seat plate 12 is released from the restraint and is rotatable. The cushion coil spring 33a that was bent at this time
Presses the stopper projection 14a to rotate it a small amount, so that the foot pedal 41 is released and the lock pin 4 of the lock pin 42 is released.
Even if 2a projects, it does not fit into the locked plate 16a and is not locked again.

During this time, the driving gear 55 idles with respect to the output shaft 53 of the motor M, and no driving force is transmitted. After the lock mechanism 40 is released, the switching drive member 60 causes the switching member 56 to switch the output of the motor M to the drive gear 5.
Switch to the side that transmits to 5. This switching timing can be detected by detecting that the rotation amount regulating stopper 54c has come into contact with the contact protrusion 51, the release cable 59 can no longer be pulled, and the load on the motor M has increased. Further, a sensor for detecting the release position of the member of the lock mechanism 40 may be provided.

The switching is performed by a switching drive member 60.
When the switching drive member 60 is energized in the forward direction, the reciprocating end 61 retracts, the base of the switching rocking member 63 is pulled via the relay rod 62, and the switching rocking member 63 rotates clockwise in FIG. The switching drive member 60 of the member 56 moves in the axial direction of the output shaft 53, and is switched from the unlock pulley 54 to the rotational drive position where it is engaged with the drive gear 55.

By the switching operation of the switching member 56, the switching member 56 moves to the drive gear 55 side, and the engagement dog 56b of the switching member 56 and the engaged dog 55a of the drive gear 55 mesh. The output of the motor M is transmitted to the drive gear 55 via the switching member 56, and when the drive gear 55 is driven to rotate by the motor M, the rotation of the rotary seat plate 12 arranged around the rotation axis is controlled. The joint 16 is driven to rotate, and the rotary seat plate 12 is rotated by the power of the motor M.

When the unlocking pulley 54 is released, the releasing cable 59 is pulled by the urging force of the urging spring 43 from the lock mechanism 40 to return the foot pedal 41, and the unlocking pulley 54 is returned to its original position. And the lock mechanism 40 can be restrained, but the cushion coil spring 33a pushes the stopper projection 14a to rotate a small amount as described above, so that the lock state is not locked at the original reverse position.

When the rotary seat plate 12 is rotated by 180 degrees and reaches a predetermined position, the lock end 42a of the lock pin 42 comes to the position of the locked plate 16b, and once retracts, projects and protrudes from the locked plate 16b. The lock mechanism 4
0, the rotary seat plate 12 is restrained and held at the inverted position. In the held state, the switching drive member 60
Is energized in the opposite direction to the above, and switches the switching member 56 to the output shaft 5.
3, the switching member 56 is disengaged from the drive gear 55 and held at the unlocked position where it is engaged with the unlocking pulley 54.

When the rotary seat plate 12 supporting the seat portion 11 is reversed from this position, the motor M is started to rotate in the reverse direction. Then, the unlocking pulley 54 is rotated in the opposite direction, and the unlocking cable 59 is wound around the winding portion 54a from the opposite direction and pulled, whereby the lock mechanism 40 is unlocked. Subsequent operations are the same as in the reversing operation except that the rotation directions of the motor M and the rotary seat plate 12 supporting the seat portion 11 are different.

In the above-described embodiment, the drive mechanism 50 is provided on the base 30. However, the same operation can be obtained even if the drive mechanism 50 is provided on the rotary seat plate 12 and the installation is reversed. In this case, since the amount of protrusion below the seat portion 11 can be reduced, the feet can be widened and the sitting comfort can be improved.
In the case of reversing by power, it is needless to say that the train can be used to orient all the vehicles on the train or the entire train in the same direction.

[0039]

According to the seat apparatus of the present invention, since a single motor is used as a drive source and a switching drive member such as a small solenoid for switching is provided, the seat can be changed. The source device is simple, the noise can be reduced by the switching drive member having a small output, and the seat device can be easily assembled by arranging the electric system in a concentrated manner.

[Brief description of the drawings]

FIG. 1 is a plan view in which a part of a seat device according to an embodiment of the present invention is omitted.

FIG. 2 is a front view in which a part of a seat apparatus according to an embodiment of the present invention is omitted.

FIG. 3 is a front view in which a part of a driving unit of the seat device according to the embodiment of the present invention is omitted.

FIG. 4 is a front view in which a portion near a switching drive member of a drive unit of the seat device according to the embodiment of the present invention is partially omitted.

FIG. 5 is a sectional view of a main part showing a pivot mechanism of the seat device according to the embodiment of the present invention.

FIG. 6 is an explanatory diagram of the unlocking pulley of the drive unit of the seat device according to the embodiment of the present invention, as viewed from the switching member side.

FIG. 7 is an exploded perspective view of a seat device according to an embodiment of the present invention, in which a part of a driving unit is omitted.

FIG. 8 is a front view of a seat provided with a seat device according to one embodiment of the present invention.

FIG. 9 is a plan view of a seat provided with a seat device according to one embodiment of the present invention.

FIG. 10 is a side view of a seat provided with a seat device according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Seat 11 ... Seat part 12 ... Rotating seat plate 16 ... Engagement part 16a, 16b ... Locked plate 20 ... Seat apparatus 21 ... Pivot mechanism 30 ... Base 31 ... Support surface part 33a, 33b ... Cushion coil spring 40 ... Lock mechanism 41 ... Foot pedal 42 ... Lock pin 44 ... Connecting end 50 ... Drive mechanism 53 ... Output shaft 54 ... Lock release pulley 54a ... Wound part 54b ... Engaged dog 54c ... Rotation amount stopper 55 ... Drive gear 55a ... engaged dog 56 ... switching member 56a, 56b ... engagement dog 56c ... groove portion 60 ... switching drive means 61 ... advance and retreat end 62 ... relay rod 63 ... switching swing member 64 ... operating end

Claims (1)

(57) [Claims] A rotating mechanism for rotating the rotary seat plate by rotating the rotary seat plate by 180 degrees and supporting the rotary seat plate at each reversing position; A driving mechanism for driving the motor, and a motor and a driving gear driven by the motor are disposed on one of the base and the rotating seat plate, and the other is provided around a reversing rotation shaft. The drive mechanism includes: a motor; a lock release pulley;
The drive gear, a switching member for selectively transmitting the output of the motor to the unlock pulley or the drive gear, and a switching drive member for switching the switching member. The release pulley is provided so as to be freely rotatable about the output shaft of the motor, and has a winding portion of a release cable extending to the lock mechanism. The drive gear is connected to the output shaft of the motor. The switching member is provided so as to be freely rotatable, and the switching member is fitted between the lock release pulley and the drive gear so as to be capable of transmitting rotational power to an output shaft of the motor, and is engaged with the lock release pulley. The output shaft is provided so as to be movable in the axial direction of the output shaft between a lock release position to be engaged and a rotational drive position to be engaged with the drive gear, and engagement dogs are provided on both side surfaces of the switching member. On the other hand, A seat device comprising: an engaged dog that meshes with the engaging dog so as to be able to transmit a rotational force to one side surface of each of the unlocking pulley and the drive gear that faces the switching member. .