JP2020185910A - Monitoring device for vehicle seat - Google Patents

Abstract

To provide a monitoring device for a vehicle seat from which a wire harness provided inside can be easily taken out even when a support arm for supporting the monitoring device has a bending part and the support arm is divided into a plurality of parts which relatively rotate around a center axis.SOLUTION: In a monitoring device 10, a base part of an arm part 30 for supporting a monitoring part 40 with respect to a seat 1 for an aircraft is connected so as to rotate around a rotation axis 21. The arm part 30 is formed in a cylindrical shape in which center axes CL1, CL2 are bent and extended so as to house a wire harness W inside, and is divided into a first arm part 31 and a second arm part 32 which are divided in extending directions of the center axes CL1, CL2 and relatively rotate around the center axes CL1, CL2. The first arm part 31 and the second arm part 32 are formed so that they can be separated into a right first arm part 31a and a left first arm part 31b, and a right second arm part 32a and a left second arm part 32b respectively.SELECTED DRAWING: Figure 5

Description

The present invention relates to a vehicle seat monitoring device.

Conventionally, it is known that a vehicle such as an aircraft has a monitor device such as a liquid crystal display attached to a seat. In the vehicle seat monitor device described in Patent Document 1, the base of the support arm that supports the monitor device is rotatably attached to the front end of the recess of the armrest. Here, the support arm has a straight cylindrical shape, and a wire harness wired from the armrest to the monitor device is passed through the inside.

Jikkenhei 6-61594

In the conventional vehicle seat monitor device described above, the support arm has no bent portion and is divided into a plurality of parts that rotate relative to the central axis. Therefore, when disassembling and repairing the wire harness, the wire harness is inside the support arm. Can be easily removed from. However, when the support arm has a bent portion and the support arm is divided into a plurality of parts that rotate relative to the central axis, it is easy to take out the wire harness from the inside of the support arm when disassembling and repairing the wire harness. There was a problem that it was not.

In view of such a problem, the subject of the present invention is easy even when the support arm supporting the monitor device has a bent portion and the support arm is divided into a plurality of portions that rotate relative to the central axis. To provide a vehicle seat monitor device capable of removing the internal wire harness.

The first invention of the present invention is a vehicle seat monitor device in which a base portion of an arm portion that supports the monitor portion is rotatably connected to the vehicle seat, and the central axis of the arm portion extends by bending. It is tubular and is formed so that the wire harness can be stored inside, and it is divided into a plurality of divided portions that are divided in the extending direction of the central axis and rotate relative to the central axis. Each of them is characterized in that it is formed so as to be separable into two in a direction perpendicular to the central axis.

According to the first invention, since the plurality of divided portions are formed so as to be separable into two in the direction perpendicular to the central axis, the central axis is curved and extends in a tubular shape and rotates relative to the central axis. Even the arm portion divided into a plurality of divided portions can be disassembled and the wire harness can be easily taken out from the inside of the arm portion.

A second aspect of the present invention is characterized in that, in the first invention, the divided portions are formed so as to be separable into two in a direction perpendicular to the divided surface on the divided surface including the central axis. ..

According to the second invention, since the divided portions are formed so as to be separable into two in the direction perpendicular to the divided surface on the divided surface including the central axis, the divided portions are separated from each other and the internal wire harness is taken out. Cheap.

In the third aspect of the present invention, in the second invention, the adjacent divided portion is the outer diameter portion of the cylindrical inner cylinder portion provided at one end and the outer diameter portion provided at the other end. It is characterized in that it is connected so as to be relatively rotatable around the central axis in a state of being covered with an inner diameter portion having a shape corresponding to the diameter portion.

According to the third invention, the adjacent divided portions can be connected so as to be relatively rotatable with a simple structure.

In the fourth aspect of the present invention, in the third aspect of the present invention, a sliding smoothing member for facilitating sliding is disposed between the outer diameter portion and the inner diameter portion, and the sliding The smoothing member is formed in a cylindrical shape by combining substantially semi-cylindrical half-cylinder members, one side of the half-cylinder member is fixed to the outer diameter portion, and the other side of the half-cylinder member is fixed. The side is fixed to the one side by screwing through the inner diameter portion, and by changing the degree of tightening of the screw tightening, the sliding resistance between the outer diameter portion and the inner diameter portion is increased. It is characterized by being adjustable.

According to the fourth invention, the adjacent divided portions can be connected by adjusting the sliding resistance that rotates relative to each other.

It is a side view of the aircraft seat to which the monitoring device of one Embodiment of this invention is attached. Indicates that the arm of the monitoring device is in the upright position. It is a side view of the aircraft seat to which the monitoring device which concerns on the said embodiment is attached. Indicates that the arm of the monitoring device is in the retracted position. It is a side view of the aircraft seat to which the monitoring device which concerns on the said embodiment is attached. Indicates that the arm of the monitoring device is in the pop-up position. It is a perspective view of the state in the storage position of the monitor device which concerns on the said embodiment. It is an exploded perspective view seen from the left in the state of being in the storage position of the monitoring apparatus which concerns on the said embodiment. It is an exploded perspective view seen from the right side of the state in the storage position of the monitor device which concerns on the said embodiment. It is a side view of the state in the storage position of the monitor device which concerns on the said embodiment. FIG. 7 is a cross-sectional view taken along the line of arrows VIII-VIII in FIG. FIG. 7 is a cross-sectional view taken along the line of the IX-IX arrow in FIG. It is a side view which shows the fixed part in the storage position of the monitoring apparatus which concerns on the said embodiment in an enlarged manner. FIG. 10 is a cross-sectional view taken along the line of arrows XI-XI in FIG. Indicates that the lock mechanism is in the locked state. FIG. 10 is a cross-sectional view taken along the line of arrows XI-XI in FIG. Indicates that the lock mechanism is in the unlocked state. It is a perspective view which shows the relationship between the locking member 36d and the engaging part 31b113 in the state of FIG. It is a perspective view which shows the relationship between the locking member 36d and the engaging part 31b113 in the state of FIG.

1 to 14 show an embodiment of the present invention. This embodiment is the monitoring device 10 of the present invention attached to the aircraft seat 1. In each figure, arrows indicate each direction with respect to the seated person seated on the aircraft seat 1. In the following description, the description regarding the direction shall be made with reference to this direction.

As shown in FIGS. 1 to 3, the aircraft seat 1 includes a seat cushion 2 serving as a seating portion, a seat back 3 serving as a backrest portion, and a support base 4 provided on the right side portion. The seat cushion 2 is fixed to the floor F by attaching the lower end side of the frame 2a forming the skeleton to the floor F. The seat back 3 is rotatably attached in the front-rear direction around a connecting shaft 2b whose lower end side extends in the left-right direction with respect to the upper end side of the frame 2a, and the inclination angle with respect to the seat cushion 2 is adjustable. There is. A support base 4 is provided on the right side of the frame 2a so as to extend upward. The support base 4 is formed so as to function as a partition wall with the adjacent seat and as an armrest on the upper surface thereof. Here, the aircraft seat 1 corresponds to the "vehicle seat" in the claims.

As shown in FIGS. 1 to 3, the monitoring device 10 of the present embodiment is attached to the front side of the support base 4 of the aircraft seat 1. In the monitor device 10, a fixed portion 20 fixed to a support base 4, a monitor portion 40 composed of a liquid crystal display or the like, and a tip portion 30a at one end are connected to the monitor portion 40, and a base portion at the other end. 30b has an arm portion 30 rotatably connected to the fixing portion 20. Further, the monitoring device 10 has a lock mechanism 50 that locks or unlocks the rotation of the arm portion 30 with respect to the fixed portion 20.

The schematic configuration of the monitoring device 10 will be described. The arm portion 30 is vertically rotatable about a rotation shaft 21 extending in the left-right direction with respect to the fixed portion 20 at the base portion 30b, and has an upright position P1 shown in FIG. 1 and a storage position P2 shown in FIG. , The pop-up position P3 shown in FIG. 3 can be taken. In the standing position P1, the arm portion 30 supports the monitor portion 40 connected to the tip portion 30a at a position above the rotation shaft 21 so that the seated person can easily see it. At the storage position P2, the arm portion 30 supports the monitor portion 40 connected to the tip portion 30a at a position below the rotation shaft 21 so as not to interfere with the seated person. At the pop-up position P3, the arm portion 30 supports the monitor portion 40 connected to the tip portion 30a at a position below the rotation shaft 21 where the seated person can easily grasp the arm portion 30 and pull it up to the standing position P1. The arm portion 30 can be brought into a locked state in which it cannot rotate with respect to the fixed portion 20 or an unlocked state in which it can rotate at the standing position P1 and the storage position P2 by the lock mechanism 50 described later. Then, when the lock mechanism 50 is unlocked at the storage position P2, the arm portion 30 rotates clockwise around the rotation shaft 21 in FIG. 2 due to gravitational action and moves to the pop-up position P3. There is. This is because the center of gravity G of the monitoring device 10 is displaced rearward with respect to the vertical line PL lowered from the rotation shaft 21, so that when the lock mechanism 50 is unlocked, the center of gravity G rotates due to the action of gravity and the center of gravity G becomes the vertical line. It becomes the pop-up position P3 by overlapping with the PL. Here, the monitoring device 10 corresponds to the "monitoring device for a vehicle seat" in the claims.

As shown in FIGS. 4 to 6, the fixing portion 20 of the monitoring device 10 has a right plate 22 and a left plate member 23. The right plate 22 is a substantially semicircular plate-shaped member that bulges forward when viewed from the left-right direction, and has a substantially quadrangular square through hole 22a that penetrates in the center portion in the left-right direction, and upper end side and lower end side. Each has a screw hole 22b and a screw hole 22b. Further, the right plate 22 has a tubular operation button support portion 22c having an elliptical cross section extending to the left between the upper screw hole 22b and the square through hole 22a, and an operation button support portion with respect to the square through hole 22a. It has a columnar protrusion 22d that protrudes to the left on the opposite side of the 22c. The square through hole 22a is a hole for supporting the right shaft member 24 by passing it from the right side and fitting it to the peripheral edge portion. The central axis of the right shaft member 24 coincides with the rotation shaft 21. The operation button support portion 22c is such that the operation button 36 cannot be rotated with respect to the operation button support portion 22c by inserting the support portion 36b of the operation button 36 described later into the inner cylinder portion via the coil spring 22c1. It is for supporting so as to be slidable in the left-right direction. A disk-shaped resin plate member 22e is disposed in contact with the left surface of the right plate 22. The resin plate member 22e is a part made of polyacetal resin and is for facilitating sliding with the arm portion 30 that rotates with respect to the right plate 22. The resin plate member 22e is provided with holes 22e1, holes 22e2, and holes 22e3 corresponding to the square through holes 22a, the operation button support portion 22c, and the protrusions 22d. The operation button support portion 22c is passed through the hole 22e2, and the protrusion 22d is passed through the hole 22e3, so that the resin plate member 22e is attached to the right plate 22 so as not to rotate relative to the right plate 22.

As shown in FIGS. 4 to 6, the left plate member 23 is formed of a left plate 23a having the same shape as the right plate 22 when viewed from the left-right direction and extending from the upper end side of the left plate 23a to the right. It has an upper connecting portion 23b and a lower connecting portion 23c formed so as to extend to the right from the lower end side of the left plate 23a. The left plate 23a has a middle through hole 23a1 penetrating in the central portion in the left-right direction, an upper through hole 23a2 provided above the middle through hole 23a1 in the left-right direction, and an upper through hole 23a2 with respect to the middle through hole 23a1. It has a columnar protrusion 23a3 that protrudes to the right on the opposite side to the above. The middle through hole 23a1 is a hole that is supported through the left shaft member 25 having a substantially cylindrical shape. The central axis of the left shaft member 25 coincides with the rotation shaft 21. The upper through hole 23a2 is a hole that slidably supports the button portion 36c of the operation button 36 described later in the left-right direction. A screw hole 23b1 extending in the left-right direction is provided at the right end of the upper connecting portion 23b, and a screw hole 23c1 extending in the left-right direction is provided at the right end of the lower connecting portion 23c. The right plate 22 and the left plate member 23 are integrated by matching the upper screw hole 22b and the screw hole 23b1 and matching the lower screw hole 22b and the screw hole 23c1 and tightening the screws. In the integrated state, the right plate 22 and the left plate 23a face each other, and the base portion 30b of the arm portion 30 can be arranged between them. A disk-shaped resin plate member 23d is disposed in contact with the right surface of the left plate 23a. The resin plate member 23d is a part made of polyacetal resin and is for facilitating sliding with the arm portion 30 that rotates with respect to the left plate 23a. The resin plate member 23d is provided with holes 23d1, holes 23d2, and holes 23d3 corresponding to the middle through holes 23a1, the upper through holes 23a2, and the protrusions 23a3. A cylindrical portion 23d11 extending to the right is provided on the outer peripheral edge portion of the hole 23d1. The left shaft member 25 is passed through the hole 23d1 and the inner cylinder portion of the cylindrical portion 23d11, the button portion 36c of the operation button 36 is passed through the hole 23d2, and the protrusion 23a3 is passed through the hole 23d3, whereby the resin plate member 23d Is attached so as not to rotate relative to the left plate 23a.

As shown in FIGS. 4 to 6, the arm portion 30 includes a first arm portion 31 that is rotatably connected to the fixed portion 20 about a rotation shaft 21, a first arm portion 31, and a monitor portion. It has a second arm portion 32 that connects the 40 and the 40 in a relative rotatable manner at each connecting portion. Here, the first arm portion 31 and the second arm portion 32 correspond to the “divided portion” of the claims, respectively. Further, the first arm portion 31 and the second arm portion 32 correspond to "the other" and "one" in the claims, respectively.

As shown in FIGS. 4 to 6, in the first arm portion 31, the right first arm portion 31a opening toward the left and the left first arm portion 31b opening toward the right are on the opening side. A hollow portion 26 is formed inside by abutting and combining the two. The hollow portion 26 extends substantially in the vertical direction about the central axis CL1, and the wire harness W for connecting the monitor device 10 and the control device (not shown) arranged inside the support base 4 therein. Is arranged. The plane connecting the open ends of the right first arm portion 31a including the central axis CL1 and the left first arm portion 31b is the first partition plane S1. In other words, the first arm portion 31 is formed so as to be separable in the left-right direction, which is the direction perpendicular to the first division surface S1. Here, the first division surface S1 corresponds to the "division surface" in the claims.

As shown in FIGS. 4 to 6, the right first arm portion 31a extends in the radial direction from the front lower part of the sliding portion 31a1 and the sliding portion 31a1 which are circular when viewed from the left and right direction, and is curved downward from the middle. It has an arm portion 31a2 extending toward. The sliding portion 31a1 extends to the left except for the bottom wall portion 31a11 having substantially the same shape as the resin plate member 22e when viewed from the left and right direction and the portion of the peripheral edge of the bottom wall portion 31a11 to which the arm portion 31a2 is connected. It has a vertical wall portion 31a12 formed of the above. The bottom wall portion 31a11 is provided with a center through hole 31a111 penetrating in the left-right direction in the central portion, and a length extending in the upper portion on the circumference centered on the central axis of the center through hole 31a111 and penetrating in the left-right direction. Holes 31a112 are provided. The central axis of the center through hole 31a111 coincides with the rotation shaft 21. The long hole 31a112 has its long axis on the circumference centered on the rotation shaft 21 when viewed from the left-right direction, and the operation button support portion 22c of the right plate 22 is formed to have a slidable size. The length of the long axis of the elongated hole 31a112 is such that the arm portion 30 does not come into contact with the operation button support portion 22c when the arm portion 30 is rotated between the standing position P1 and the storage position P2. On the left side surface of the bottom wall portion 31a11, three screw receiving portions 31a113 are provided on the radial outer side of the center through hole 31a111. The one-way clutch 33 is attached by tightening the screws on the three screw receiving portions 31a113. The one-way clutch 33 has an inner cylinder portion 33b provided on the same axis at the central portion of the main body portion 33a and the main body portion 33a, and the main body portion 33a is a rotating shaft 21 in FIG. 5 with respect to the inner cylinder portion 33b. When it turns clockwise around, there is no load, and when it turns counterclockwise, a predetermined load is generated. The arm portion 31a2 is formed in a substantially semi-cylindrical shape that opens toward the left, and is formed by being smoothly connected to the bottom wall portion 31a11 and the standing wall portion 31a12 with respect to the sliding portion 31a1. The arm portion 31a2 is provided with a plurality of screw holes 31a21 penetrating in the left-right direction.

The attachment structure of the right first arm portion 31a to the right plate 22 will be described. As shown in FIGS. 4 to 6, the center of the square through hole 22a, the center of the center through hole 31a111, and the central axis of the inner cylinder portion 33b are aligned with the resin plate member 22e superimposed on the right plate 22. The right shaft member 24 is inserted from the right side of the right plate 22 so as to be arranged on the same axis. The right shaft member 24 has a first cylindrical portion 24a, a first prism portion 24b, a second cylindrical portion 24c, a third cylindrical portion 24d, a second prism portion 24e, and a fourth column arranged on the same central axis in order from the right side. It has a cylindrical portion 24f. The first prism portion 24b is formed so as to be fitted into the square through hole 22a of the right plate 22. The second cylindrical portion 24c is formed so as to be fitted to 22e1 of the resin plate member 22e. The third cylindrical portion 24d is formed so as to be fitted inside the inner cylinder portion 33b of the one-way clutch 33. The second prism portion 24e is formed so as to be fitted in the through hole 34c of the gap concealing member 34. The fourth cylindrical portion 24f is threaded so that it can be screwed into the screw hole 35a of the nut 35. The first cylindrical portion 24a is formed larger in the radial direction than the first prism portion 24b, and abuts on the right side surface of the right plate 22 to prevent the right shaft member 24 from moving to the left. With the right plate 22, the resin plate member 22e, the right first arm portion 31a, the one-way clutch 33, and the gap concealing member 34 overlapped, the nut 35 is tightened to the fourth cylindrical portion 24f through the right shaft member 24 so that each member can be attached. Be integrated. At this time, the right first arm portion 31a has no load when it turns in the upright position P1 direction with respect to the right plate 22 due to the action of the one-way clutch 33, and a predetermined load is generated when it turns in the storage position P2 direction. The gap concealing member 34 has a vertical plate portion 34a extending downward and a horizontal plate portion 34b extending from the lower end portion of the vertical plate portion 34a toward the left, and the horizontal plate portion 34b has an arm portion 30 standing upright. When the position is P1, it is prevented that the inside of the arm portion 30 can be seen from the notch 31b 121 of the left first arm portion 31b, which will be described later.

As shown in FIGS. 4 to 6 and 10, the left first arm portion 31b is formed substantially symmetrically with the right first arm portion 31a. Specifically, the left first arm portion 31b has a circular sliding portion 31b1 when viewed from the left-right direction, and an arm portion 31b2 that extends radially from the front lower part of the sliding portion 31b1 and is curved from the middle and extends downward. And have. The sliding portion 31b1 extends to the right except for the bottom wall portion 31b11 having substantially the same shape as the resin plate member 23d when viewed from the left and right direction and the portion of the peripheral edge of the bottom wall portion 31b11 where the arm portion 31b2 is connected. It has a vertical wall portion 31b12 formed in the above. A notch 31b121 is provided in the upper portion of the vertical wall portion 31b12 in the circumferential direction. The notch 31b121 is for taking out the upper end side of the wire harness W from the hollow portion 26, and the circumferential length of the notch 31b121 is approximately the same as the circumferential length of the long axis of the elongated hole 31b112 described later. equal. The bottom wall portion 31b11 is provided with a center through hole 31b111 penetrating in the left-right direction in the central portion, and a long hole having a long axis extending on the circumference centered on the center of the center through hole 31b111 and penetrating in the left-right direction at the upper part. 31b112 is provided. The central axis of the center through hole 31b111 coincides with the rotation shaft 21. The long hole 31b112 is a button portion of an operation button 36 whose long axis is on the circumference centered on the rotation shaft 21 when viewed from the left-right direction and is slidably supported in the left-right direction with respect to the left plate 23a. The 36c is formed in a slidable size. The length of the long axis of the elongated hole 31b112 is such that the arm portion 30 does not come into contact with the button portion 36c of the operation button 36 when the arm portion 30 is rotated between the standing position P1 and the storage position P2. A fan-shaped engaging portion 31b113 whose central axis is coaxial with the center through hole 31b111 is provided on the right surface of the bottom wall portion 31b11 from the radial upper portion to the radial front portion of the center through hole 31b111 so as to project to the right. ing. When the arm portion 30 is at the storage position P2, the front portion 36d1 of the locking member 36d of the operation button 36, which will be described later, comes into contact with the upper end portion 31b114 of the engaging portion 31b113 extending in the radial direction with respect to the fixing portion 20. The rotation of the arm portion 30 is blocked to lock the arm portion 30. When the arm portion 30 is in the upright position P1, the rear surface portion 36d2 of the locking member 36d of the operation button 36, which will be described later, comes into contact with the lower end portion 31b115 extending in the radial direction of the lower portion of the engaging portion 31b113 with respect to the fixing portion 20. The rotation of the arm portion 30 is blocked to lock the arm portion 30. The arm portion 31b2 has a substantially semi-cylindrical shape that opens toward the right, and is formed by being smoothly connected to the bottom wall portion 31b11 and the standing wall portion 31b12 with respect to the sliding portion 31b1. The arm portion 31b2 is provided with a plurality of screw holes 31a21 extending in the left-right direction.

As shown in FIGS. 4 to 6 and 10 to 14, the operation buttons 36 are erected perpendicularly to the base portion 36a having a substantially rectangular parallelepiped shape and from one end side of the base portion 36a to the base portion 36a. It has a support portion 36b having an elliptical cross section and a button portion 36c having a circular cross section erected on the side opposite to the support portion 36b with respect to the base portion 36a. The support portion 36b and the button portion 36c are formed so as to extend on the same axis. A rectangular parallelepiped locking member 36d is screwed and attached to the surface to which the support portion 36b on the other end side of the base portion 36a and the support portion 36b on the side where the button portion 36c is not arranged are attached. There is. When the operation button 36 is attached to the fixing portion 20 by inserting the support portion 36b into the operation button support portion 22c of the right first arm portion 31a, the long axis of the base portion 36a has the other end side forward and downward. It extends toward. The support portion 36b of the operation button 36 is passed through the elongated hole 31a112 of the right first arm portion 31a and the hole 22e2 of the resin plate member 22e from the tip side, and the coil spring 22c1 is passed through the operation button support portion 22c of the right first arm portion 31a. It is inserted via. The button portion 36c of the operation button 36 is passed through the elongated hole 31b112 of the left first arm portion 31b, the hole 23d2 of the resin plate member 23d, and the upper through hole 23a2 of the left plate member 23 from the tip side. As a result, the operation button 36 slides in the left-right direction without rotating with respect to the fixed portion 20 by pressing or releasing the tip portion of the button portion 36c. At this time, the front surface portion 36d1 which is the front upper surface of the locking member 36d and the rear surface portion 36d2 which is the rear lower surface also slide in the left-right direction while maintaining the vertical angle with respect to the fixing portion 20.

As shown in FIGS. 4 to 6, the operation button 36, the left first arm portion 31b, and the resin plate member 23d are attached to the right first arm portion 31a to which the right plate 22, the resin plate member 22e, and the one-way clutch 33 are attached. , The left plate member 23 is arranged. Then, the right plate 22 and the left plate member 23 are screwed and fixed, and the right first arm portion 31a and the left first arm portion 31b are screwed and fixed. Prior to screwing and fixing the left first arm portion 31b to the right first arm portion 31a, the upper connecting portions 32a2 and 32b2 of the second arm portion 32 are connected to the lower end side of the right first arm portion 31a and the left first arm. It is necessary to arrange it between the lower end side of the portion 31b, which will be described later. The sliding portion 31a1 of the right first arm portion 31a and the sliding portion 31b1 of the left first arm portion 31b arranged between the right plate 22 and the left plate member 23 correspond to the base portion 30b.

As shown in FIGS. 11 and 13, when the arm portion 30 is in the storage position P2, the operation button 36 is moved to the leftmost position by the urging force of the coil spring 22c1 when the button portion 36c of the operation button 36 is not pressed. is there. At this time, the front surface portion 36d1 of the locking member 36d comes into contact with the upper end portion 31b114 of the engaging portion 31b113 of the left first arm portion 31b to prevent the arm portion 30 from rotating in the upright position P1 direction. is there. When the button portion 36c of the operation button 36 is pressed from this state, the states shown in FIGS. 12 and 14 are obtained. In this state, the operation button 36 compresses the coil spring 22c1 against the urging force of the coil spring 22c1 and is in the rightmost position. At this time, the front surface portion 36d1 of the locking member 36d moves to the right, separates from the upper end portion 31b114 of the engaging portion 31b113 of the left first arm portion 31b, and rotates the arm portion 30 in the upright position P1 direction. It is in an allowed unlocked state. When the arm portion 30 is in the upright position P1, the operation button 36 is in the leftmost position due to the urging force of the coil spring 22c1 when the button portion 36c of the operation button 36 is not pressed. At this time, the rear surface portion 36d2 of the locking member 36d comes into contact with the lower end portion 31b115 of the engaging portion 31b113 of the left first arm portion 31b to prevent the arm portion 30 from rotating in the storage position P2 direction. is there. In the state where the arm portion 30 is in the upright position P1 and the storage position P2, the left end portion 36d3 of the locking member 36d comes into contact with the right surface portion of the engaging portion 31b113 and slides, so that the unlocked state is maintained. Since the arm portion 30 is also in the unlocked state when it is in the pop-up position P3, the arm portion 30 can be pulled up in the direction of the standing position P1. Then, when the arm portion 30 reaches the upright position P1, the locking member 36d moves to the leftmost position by the action of the coil spring 22c1, the rear surface portion 36d2 abuts on the lower end portion 31b115, and the storage position P2 of the arm portion 30. It becomes a locked state that prevents rotation in the direction. Similarly, when the arm portion 30 is rotated from the standing position P1 to the storage position P2, when the storage position P2 is reached, the coil spring 22c1 acts to lock the arm portion 30. Here, the lock mechanism 50 is configured by the operation button 36 and the engaging portion 31b113. Further, the engaging portion 31b113 corresponds to the "locked portion" in the claims.

As shown in FIGS. 4 to 9, in the second arm portion 32, the right second arm portion 32a opening toward the left and the left second arm portion 32b opening toward the right are on the opening side. The hollow portion 27 is formed inside by abutting and combining the two. The hollow portion 27 extends substantially in an L shape when viewed from the left-right direction with the central axis CL2 as the center, and contains a control device (not shown) arranged inside the monitor device 10 and the support base 4. A wire harness W for connecting the above is arranged. The plane connecting the open ends of the right second arm portion 32a including the central axis CL2 and the left second arm portion 32b is the second dividing surface S2. In other words, the second arm portion 32 is formed so as to be separable in the left-right direction, which is the direction perpendicular to the second dividing surface S2. Here, the second division surface S2 corresponds to the "division surface" in the claims.

The right second arm portion 32a and the left second arm portion 32b are formed substantially symmetrically. The right second arm portion 32a includes a main body portion 32a1 that opens to the left in an elbow shape when viewed from the left and right, and a substantially semi-cylindrical upper connecting portion 32a2 that opens to the left provided above the main body portion 32a1. , A substantially semi-cylindrical rear connecting portion 32a3 provided at the rear portion of the main body portion 32a1 and opening to the left. The main body 32a1 is provided with a plurality of screw holes 32a11 penetrating in the left-right direction. A flange portion 32a21 is provided at the upper end portion of the upper connecting portion 32a2, and a flange portion 32a31 is provided at the rear end portion of the rear connecting portion 32a3. The left second arm portion 32b includes a main body portion 32b1 that opens to the right in an elbow shape when viewed from the left and right, and a substantially semi-cylindrical upper connecting portion 32b2 that opens to the right provided above the main body portion 32b1. , A substantially semi-cylindrical rear connecting portion 32b3 provided at the rear portion of the main body portion 32b1 and opening to the right. The main body 32b1 is provided with a plurality of screw holes 32b11 extending in the left-right direction. A flange portion 32b21 is provided at the upper end portion of the upper connecting portion 32b2, and a flange portion 32b31 is provided at the rear end portion of the rear connecting portion 32b3. The right second arm portion 32a and the left second arm portion 32b are screwed together with the opening side in contact with each other to form the second arm portion 32. In the integrated state, the upper connecting portion 32a2 and the upper connecting portion 32b2 have a cylindrical shape extending in the vertical direction, and the rear connecting portion 32a3 and the rear connecting portion 32b3 have a cylindrical shape extending in the front-rear direction. The outer diameter side surfaces of the upper connecting portion 32a2 and the upper connecting portion 32b2 are the outer diameter portion 32a22 and the outer diameter portion 32b22, respectively. Here, the upper connecting portion 32a2 and the upper connecting portion 32b2 correspond to the "inner cylinder portion" in the claims.

A structure for connecting the second arm portion 32 to the first arm portion 31 will be described. As shown in FIGS. 6 and 8, the cross section formed on the lower end side of the left first arm portion 31b opens to the right on the receiving surface portion 31b22 which is a semicircular shape and extends vertically. The upper connecting portion 32b2 of the second arm portion 32 is brought into contact with the resin member 32c having a substantially semi-cylindrical shape. The upper connecting portion 32a2 of the second arm portion 32 is covered with a substantially semi-cylindrical resin member 32d that opens to the left, and is fixed by screwing to the left first arm portion 31b. The resin member 32c and the resin member 32d are parts made of polyacetal resin, and the second arm rotates about the axis of a cylinder composed of the upper connecting portion 32a2 and the upper connecting portion 32b2 with respect to the left first arm portion 31b. This is for facilitating sliding with the portion 32. Here, the sliding resistance in rotation between the second arm portion 32 and the first arm portion 31 can be adjusted by adjusting the degree of screw tightening of the resin member 32d with respect to the left first arm portion 31b. With the second arm portion 32 attached to the lower end side of the left first arm portion 31b, the right first arm portion 31a is integrated with the left first arm portion 31b by screw tightening. In a state where the second arm portion 32 is connected to the first arm portion 31, the lower end of the central axis CL1 and the upper end of the central axis CL2 coincide with each other and are in a continuous state. The orientation of the monitor unit 40 with respect to the arm unit 30 can be changed by rotating the second arm unit 32 with respect to the first arm unit 31 about the central axis CL1 and the central axis CL2. Here, the portion of the right first arm portion 31a facing the receiving surface portion 31b22 and the receiving surface portion 31b22 corresponds to the "inner diameter portion" in the claims. Further, the resin member 32c and the resin member 32d correspond to the "sliding smoothing member and the half-cylinder member" in the claims, respectively. Further, the resin member 32c corresponds to the "one side" of the claims, and the resin member 32d corresponds to the "other side" of the claims.

As shown in FIGS. 4 to 6 and 9, the monitor unit 40 of the monitor device 10 includes a liquid crystal display 41, a main frame body 42 and a subframe 43 that sandwich and support the liquid crystal display 41 from the left and right. Has. The main frame body portion 42 is a member that covers four peripheral portions of the upper, lower, front, and rear sides of the surface side of the liquid crystal display 41, and a semicircular receiving surface portion 42a1 having a cross section that opens to the right is formed at the upper end portion. A second arm portion connecting portion 42a is provided. The slave frame body portion 43 is a member that covers the central portion on the surface side of the liquid crystal display 41, and is provided with a second arm portion connecting portion 43a facing the second arm portion connecting portion 42a at the upper end portion.

The structure for connecting the monitor unit 40 to the second arm unit 32 is substantially the same as the structure for connecting the second arm unit 32 to the first arm unit 31. As shown in FIGS. 6 and 9, the rear connecting portion 32b3 of the second arm portion 32 is contacted via a substantially semi-cylindrical resin member 32e that opens to the right on the receiving surface portion 42a1 of the main frame body portion 42. Make contact. The rear connecting portion 32a3 of the second arm portion 32 is covered with a substantially semi-cylindrical resin member 32f that opens to the left, and is fixed to the second arm portion connecting portion 42a with screws. The resin member 32e and the resin member 32f are parts made of polyacetal resin and rotate about the axis of a cylinder composed of the rear connecting portion 32a3 and the rear connecting portion 32b3 with respect to the second arm portion connecting portion 42a. This is for facilitating sliding with the arm portion 32. Here, by adjusting the degree of screw tightening of the resin member 32f with respect to the second arm portion connecting portion 42a, sliding in rotation between the second arm portion 32 and the main frame body portion 42 and the slave frame body portion 43. The resistance can be adjusted. With the second arm portion 32 attached to the second arm portion connecting portion 42a of the main frame body portion 42, the second of the slave frame portion 43 with respect to the second arm portion connecting portion 42a of the main frame body portion 42. The arm portion connecting portion 43a is integrated by tightening the screws. The orientation of the monitor portion 40 with respect to the arm portion 30 can be changed by rotating the main frame body portion 42 and the slave frame body portion 43 with respect to the second arm portion 32 about the central axis CL2.

The embodiment configured as described above has the following effects. The first arm portion 31 is formed so as to be separable in the direction perpendicular to the first dividing surface S1 including the central axis CL1, and the second arm portion 32 is perpendicular to the second dividing surface S2 including the central axis CL2. It is formed so as to be separable in the direction. As a result, the arm portion 30 has a tubular shape in which the central axis CL1 and the central axis CL2 are bent and extended, and the first arm portion 31 and the second arm portion 32 that rotate relative to the central axis CL1 and the central axis CL2. Even if it is divided into two parts, it can be disassembled and the wire harness W can be easily taken out from the inside of the arm portion 30. Further, the first arm portion 31 and the second arm portion 32 have the outer diameter portion 32a22 of the upper connecting portion 32a2 and the outer diameter portion 32b22 of the upper connecting portion 32b2 provided at the upper end portion of the second arm portion 32. The receiving surface portion 31b22 provided on the arm portion 31 and the right first arm portion 31a facing the receiving surface portion 31b22 are covered and connected. Then, in this state, the first arm portion 31 and the second arm portion 32 are relatively rotatable about the central axis CL1 and the central axis CL2. Thereby, the first arm portion 31 and the second arm portion 32 can be connected so as to be relatively rotatable with a simple structure.

Further, a resin member 32c and a resin member for facilitating sliding between the outer diameter portion 32a22 and the outer diameter portion 32b22 and the portion of the right first arm portion 31a facing the receiving surface portion 31b22 and the receiving surface portion 31b22. 32d is arranged. Then, by changing the degree of screw tightening of the resin member 32d to the resin member 32c fixed to the receiving surface portion 31b22, the outer diameter portion 32a22 and the outer diameter portion 32b22, and the right side facing the receiving surface portion 31b22 and the receiving surface portion 31b22. The sliding resistance between the first arm portion 31a and the portion is adjustable. As a result, the first arm portion 31 and the second arm portion 32 can be connected by adjusting the sliding resistance that rotates relative to each other.

Although the specific embodiments have been described above, the present invention is not limited to their appearance and configuration, and various changes, additions, and deletions can be made without changing the gist of the present invention. For example, the following can be mentioned.

1. 1. In the above embodiment, the monitoring device 10 is applied to the aircraft seat 1, but the present invention is not limited to this, and it can also be applied to the seat of a vehicle such as an automobile, a railroad vehicle, or a ship.

2. 2. In the above embodiment, the rotation shaft 21 is configured to extend in the left-right direction, but the present invention is not limited to this, and any direction such as the front-back direction or between the left-right direction and the front-back direction can be selected.

1 Aircraft seat (vehicle seat)
10 Monitor device (monitor device for vehicle seat)
20 Fixed part 21 Rotating shaft 30 Arm part 30a Tip part 30b Base part 31 First arm part (divided part)
31a Right first arm part 31b Left first arm part 31b22 Receiving surface part (inner diameter part)
32 Second arm part (divided part)
32a Right second arm part 32a2 Upper connecting part (inner cylinder part)
32a22 Outer diameter part 32b Left second arm part 32b2 Upper connecting part (inner cylinder part)
32b22 Outer diameter part 32c Resin member (one side, half-cylinder member, sliding smoothing member)
32d resin member (other side, half-cylinder member, sliding smoothing member)
40 Monitor unit 50 Lock mechanism CL1 Central axis CL2 Central axis F Floor P1 Standing position P2 Storage position P3 Pop-up position S1 First division surface (division surface)
S2 Second division surface (division surface)
W wire harness

Claims (4)

A vehicle seat monitor device in which the base of an arm portion that supports the monitor unit is rotatably connected to the vehicle seat.
The arm portion has a tubular shape in which the central axis is bent and extends so that the wire harness can be housed therein, and the arm portion is divided in the extending direction of the central axis and rotates relative to the central axis. It is divided into divided parts of
A vehicle seat monitor device in which the divided portions are separately formed into two in a direction perpendicular to the central axis. The vehicle seat monitoring device according to claim 1, wherein each of the divided portions is formed so as to be separable in a direction perpendicular to the divided surface on the divided surface including the central axis. In claim 2, the adjacent divided portion has an inner diameter portion having a shape corresponding to the outer diameter portion of the cylindrical inner cylinder portion provided at one end and the outer diameter portion provided at the other end. A vehicle seat monitor device that is connected so as to be relatively rotatable around the central axis while being covered with. In claim 3, a sliding smoothing member for facilitating sliding is disposed between the outer diameter portion and the inner diameter portion.
The sliding smoothing member is formed in a cylindrical shape by combining substantially semi-cylindrical semi-cylindrical members.
One side of the half-cylinder member is fixed to the outer diameter portion.
The other side of the half-cylinder member is fixed to the one side by screwing through the inner diameter portion.
A vehicle seat monitor device capable of adjusting the sliding resistance between the outer diameter portion and the inner diameter portion by changing the degree of tightening of the screws.

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