JPH08150862A - Seat for vehicle - Google Patents

Abstract

PURPOSE: To provide a seat for a vehicle to be disposed in such a narrow space as a driver's seat for a railway vehicle provided with a function of securing a space between a seat back surface and a vehicle partition wall for getting on/off. CONSTITUTION: A walk-in spring 214 is provided between a rotary device part 30 disposed at a lower end of a seat 20 and a seat adjustor part 40, and a walk-in handle 210 provided to be protruded on the back of the seat adjustor part 40 is operated to move the seat 10 forward, thereby a space between a seat back 11 and a vehicle partition wall can be secured for facilitating walking through.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly to a vehicle seat arranged in a narrow space such as a driver's seat of a railway vehicle.

[0002]

2. Description of the Related Art Conventionally, the space inside a driver's cab of a train such as a railroad vehicle is extremely narrow, and a door for getting on and off the vehicle is shown in FIG.
It is opened inward like.

The figure shows the layout of the main parts of the passenger compartment of a railroad vehicle. The passenger compartment 3 and the passenger compartment 2 arranged at the front of the vehicle 1
A communication door 5 is provided at a central position 6 on the partition wall 4 between the and, and the communication door 5 is also designed to be inwardly opened toward the passenger compartment 3 side. Further, passenger doors 8 arranged on the left and right of the vehicle outer wall 7 are also opened inward toward the passenger compartment 5.

Furthermore, the driver's seat 10 is a vehicle outer wall 7
The control panel and the operation control panel 12 necessary for driving are disposed on the left side of the center position 6 in the traveling direction of the vehicle, and the passenger door 8 and the control panel on the left side of the vehicle outer wall 7 are provided. Since the selection switch box 9 for opening and closing the door is arranged between the operation panel 12 and the passenger, when the passenger gets in and out, the passenger door 8 is assumed to be a high-class seat such as that used in an automobile. There is a problem that the seat back 11 or the seat 10 is hit by a slider or the like for moving the seat back and forth, so that the space between the partition wall 4 and the seat back 11 cannot be widened.

That is, since the seat 10 in the driver's seat completely interferes with the door 8 being opened inward, the driver's seat that can be placed in this limited space is a foldable type or a foldable type. It was necessary to select a simple structure such as a mold, a storage type, or a round type rotating sheet.

[0006]

As described above, the conventional driver's seat has a functional design that is based on a spatial constraint that does not take into consideration "stuck" or the like when the driver drives for a long time. It was cramped and extremely uncomfortable to sit in. In recent years, along with high-tech railway vehicles and vehicle upgrades, improving the cab environment has become an indispensable element for the purpose of railway vehicles with the first priority being safe driving.
In other words, when driving, it is necessary to have an optimal posture for driving and to be able to drive comfortably and comfortably, but this cannot be satisfied with conventional seats. Even when moving, there is a problem that it is difficult to get out through the narrow space between the partition wall 4 and the sheet 10 unless the sheet is processed.

SUMMARY OF THE INVENTION The present invention provides a vehicle seat that solves the above problems. The object of the present invention is to operate the operating lever provided at the rear of the seat when the driver leaves the seat. It moves forward (in the direction of the control panel and the operation control panel 12) so as to maximize the space behind the seat, so that a passage behind the seat can be sufficiently secured, and the seat can be rotated up and down, forward and backward, and rotatable during operation. To obtain a vehicle seat that can be driven in an optimal driving posture.

[0008]

A vehicle seat according to the present invention has a raising / lowering means 50, a front / rear moving means 40 and a rotating means 30 as shown in FIG.
In a vehicle seat arranged in a relatively narrow space, the front-rear moving means 40 has an operating means 210 for operating when securing a rear space of the back seat 11 of the seat 10, and the operating means 210 is operated. By so doing, the seat back space securing means is provided which is capable of moving the seat 10 to a predetermined front position.

[0009]

In the vehicle seat of the present invention, the seat is automatically operated so as not to damage the control panel and the operation control panel 12 arranged in front of the seat by merely operating the operating means of the seat back space securing means when leaving the seat. It is possible to secure a space through which the crew can pass between the seat back 11 and the partition wall 4 of the vehicle.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment of a seat arranged in a relatively narrow space such as that for a railway vehicle as shown in FIG.
It will be described in detail with reference to FIG.

FIG. 1 is an exploded perspective view of the seat of the present invention. In the figure, 10 is a seat, and the L-shaped metal fittings 19 and 19 provided on the left and right sides of the seat 10 are used for the seat back 11
Are attached so as to be substantially orthogonal to the seat 10 to form a seat 20.

In the seat of this example, in order to reduce the weight and cost, the seating comfort is sacrificed to some extent, the spring in the seat is abolished, and the seat is composed only of the cushion material, the skin and the frame,
The gas spring used in the up-down adjustment device section described later also serves as the spring of the seat. Therefore, even if the seat spring is eliminated, the sitting comfort does not decrease so much.

The seat for seat 20 of the present example comprises a rotating device section 30 arranged at the lower end of the seat 10, a seat adjuster section 40 and a vertical adjusting device section 50. It is slidable and can be moved up and down, eliminating physical differences and improving sitting comfort.

Hereinafter, each of these parts will be described with reference to FIGS. As shown in FIG. 1, the vertical adjustment device section 50 is composed of a fixed base section 100, a lifting body 111, and a gas spring 117 of a gas spring.

The fixed base portion 100 is composed of an anchor plate 101 having a substantially rectangular shape.
An outer cylinder 102 is erected at a position displaced in the middle of the short side of 1 and rearward of the long side, and the four corners of the anchor plate 101 are transparent for fixing the anchor plate 101 to the floor of the vehicle. A hole 103 is drilled. Reference numeral 104 is a reinforcing plate for firmly fixing the outer cylinder 102 on the anchor plate 101.

A handle receiving portion 105 having a substantially U-shaped cross section is fixed to the upper end of the outer cylinder 102 by welding or the like, and a handle 106 bent in an L shape is rotated on the handle receiving portion 105. It is freely pivoted.

A pin 10 is provided at the lower end of the handle receiving portion 105.
8 has a spring 109 wound around it, and the tip of the pin 108 is biased by the spring 109 so as to be inserted into a through hole 110 formed in the outer cylinder 102 and a through hole formed in the inner cylinder.

A female screw is bored at a circumferential position rotated 90 degrees from a through hole 110 bored in the outer cylinder 102, and a step bolt 119 is screwed into this female screw, and the tip thereof is formed into a cylinder 113. It is inserted in the elongated hole 114.

The elevating body 111 has an elevating plate 112 formed in a rectangular shape having through holes 120 at four corners, and the rectangular elevating plate 112 is displaced at a substantially central position on the short side and on the long side. The inner cylinder 113 has the cylinder 113 that is planted at the specified position.
Is firmly fixed to the lower end of the elevating plate 112 via a reinforcing plate 124 by welding or the like. Further, the gas spring 117 is inserted through the through hole 121 formed at the center of the cylinder of the elevating plate 112 on which the inner cylinder 113 is planted. This gas spring 117 has a piston in a cylindrical cylinder,
Gas is filled in the cylinder and a damper force is applied,
Moreover, it is inserted into the inner cylinder 113. A long hole 114 through which the tip of the stepped bolt 119 described above is inserted into the cylinder 113.
Is formed in the longitudinal direction of the inner cylinder 113, and at the outer peripheral position of the inner cylinder 113 rotated by 90 degrees, three holes are formed in the longitudinal direction.
One long hole 115 is formed, and the tip of the pin 108 is inserted into and locked by any one of these three holes, and the handle 106 is moved upward (clockwise) in FIG. 2B. The spring 109 is pressed by rotating the pin to move the tip of the pin 108 out of the elongated hole 115.

Further, the gas spring 117 is provided on the lifting plate 112.
A cylinder part and a piston part are interposed between the anchor plate 101 and the anchor plate 101, and the respective tips are fixed to the elevating plate 112 and the anchor plate 101.

The inner cylinder 113 of the lifting body 111 is vertically slidably inserted into the inner diameter of the outer cylinder 102 of the fixed base portion 100. Since the gas spring 117 is provided with a biasing force that pushes up the lifting body 111 as a whole, if the handle 106 is lifted in the clockwise direction, that is, it is moved upward, the pin 1 is removed from the long hole 115 formed in the inner cylinder 113.
The tip of 08 is disengaged, the elevating body 111 is raised, and the mounting bolt 119 is locked at a position that has moved up to the lowermost position of the elongated hole 114 of the inner cylinder 113. While the handle 106 is being moved upward, the downward movement of the lifting plate 112 is applied to the inner cylinder 11
When the handle 106 is released at the position of the three long holes 114 formed in the hole 3, the pin 10 is inserted into one of the three long holes 114 at that position.
The tip of 8 is inserted to hold the elevating body 111 at a predetermined height position.

Next, the seat adjuster 40 will be described with reference to FIGS.
Will be described in detail. The seat adjuster 40 has a function of moving the seat back and forth and has a high frequency of getting in and out, so that the seat adjuster 40 is configured to return to the position before the walk-in after the walk-in position is fixed instead of being adjusted each time the seat is seated. It

The seat adjuster 40 has a substantially C-shaped cross section, and has a pair of left and right lower rails 200 having a plurality of lock holes formed on its side surface in the longitudinal direction, and at both ends of the pair of left and right lower rails 200. Has four male screws 201 erected downward, and the male screws 201 are inserted into the through holes 120 formed in the lifting plate 112 of the lifting body 111 and screwed onto the lifting position 112 via nuts or the like. To be done.

A lower middle rail 202 having a convex cross section inserted from the opening side of the lower rail 200 having a C-shaped cross section.
Are slidable in the longitudinal direction of the lower rail 200. The slide handle 203 and the striker A are incorporated in the lower middle rail 202 on one side of the first middle rail 202.
Slider 205 is formed. A spring is interposed between the striker A and the slide handle 203.

The upper rail 207 and the upper middle rail 208 have the same structure as the lower rail 200 and the lower middle rail 202 described above, but are inserted into the upper rail 207 only at the time of rearmost (when retracted to the rear most). Has only one lock hole. or,
A walk-in handle 210 and a striker B are incorporated in one upper middle rail 208, and a second slider 212 is formed.

Between the upper middle rail 208 and the lower middle rail 202, a plate-like L-shaped connector 213 is formed.
Are cross-linked, and the top, bottom, left and right are integrated with rivets and the like, and assembled into a substantially U shape. The left and right upper rails 2
In 07, four male screws 209 are planted at both ends,
As shown in FIG. 1, this male screw is used for the fixing plate 3 of the rotating device section 30.
It is inserted and fixed in the through hole drilled in 00. The connector 213 has a through hole 215 for locking one end of the walk-in spring 214.

According to the structure of the seat adjuster section 40 described above, the walk-in spring 214 has the connector so that the passage behind the seat can be secured by operating the walk handle protruding rearward on the first slider 205. A partition for partitioning the seat back 11 and the driver's seat is provided by being interposed between a through hole 215 drilled in 213 and a fixed plate 300 of the rotating device section 30 described later to return the seat 20 to a predetermined position. The rear space securing means is configured so that the narrow space between the plate walls 4 can be easily walked.

According to the structure of the seat adjuster section 40 described above, by operating the first slide handle 203,
The upper rail 20 above the upper middle rail 208
The parts above 7 are slidable in the front-rear direction, and when the walk-in handle 210 is operated, the striker B fitted on the upper rail 207 is disengaged, and the upper rail 207 becomes slidable, and the walk-in spring 214
To move forward (control panel and operation panel 12).

This movement is stopped when the stopper 116 provided on the elevating plate 112 of the vertical adjusting device section 50 and the stopper 301 provided on the fixed plate 300 of the rotating device section 30 described later come into contact with each other. Therefore, the first slider 205
, The upper rail 207 (and a part such as a seat mounted on the upper rail 207) after the walk-in handle 210 is operated is locked at a fixed position. Next, when the seat 20 is pushed rearward against the biasing force of the walk-in spring 214, the striker B moves backward until it fits into only one lock hole provided on the upper rail 207, and the seat is in front of the walk-in. It is made to return to the position.

Next, considering the time of seating on or leaving the seat 10, it is preferable that the seat 20 is rotatable without providing a handle for rotating the seat 20. The configuration of the rotation device unit 30 in which the seat 10 is turned forward will be described with reference to FIGS. 1, 2 and 4.

The rotating device section 30 includes a fixed plate 300 and a rotating plate 3.
It is composed of 13. The fixing plate 300 is substantially horseshoe-shaped, has a central hole 302 formed in the center thereof, and has a first transparent member formed at a position that divides the central hole 302 into six equal parts on a predetermined radius. The fixing plate 300 has a hole 303 and three second through holes 304 formed in a diameter larger than a predetermined radius in which the first through hole 303 is formed.

A small diameter portion of the lower end of the center shaft 305 is fitted in the central hole 302 of the fixed plate 300, and a small diameter portion of the slider 306 is fitted in the through hole 303 of the fixed plate 300. Further, a stepped mounting pin 308 is fitted into a through hole 304 formed in the fixed plate 300, and a guide plate 309 having both ends of an arc-shaped plate protruding forward is crimped and fixed to the upper end of the stepped pin. Has been done.

At the rear of the fixed plate 300, there is a pin 310 that is erected downward, and one end of a walk-in spring 214 is locked to this pin 310. Further, a pin 312 to which one end of a return spring 311 is locked is erected upward in the vicinity of the central hole 302 of the fixing plate 300, and further, four male screws 209 are erected on the upper rail 207 of the seat adjuster 40. An attachment hole 332 that fits into the fixing plate 300 is formed in the fixing plate 300.

Further, the rotary plate 313 is formed of a substantially horseshoe-shaped plate material, and mounting holes 314 for fixing the rotary plate 313 to the bottom surface of the seat 10 are formed at four corners thereof. In addition, the center hole 31 is provided at a substantially central position of the rotary plate 313.
5, a stepped pin 317 having a through hole 316 is formed in the front thereof and a flange portion is formed downward as shown in FIG. 4, and is caulked. Further, a pin 318 is erected in the downward direction of the rotary plate 313 near the center hole 315, and one end of the return spring 311 is locked to the pin 318.

A step portion formed at the upper end of the center shaft 305 is fitted into the center hole 315 of the rotary plate 313, and the return spring 311 inserted outside the center shaft 305 has a fixed plate 300 and a rotary plate. 313
The seat 20 mounted and fixed on the seat 20 is returned in a predetermined rotation direction, for example, counterclockwise. The center shaft 305 is provided with an upper washer 320 and a lower washer 321, and a bolt 322 is passed through a center hole of the center shaft 305. It is inserted and tightened with a nut 323, and a rotary plate 313 is rotatably attached to a fixed plate 300 so as to be in sliding contact with the six sliders 306 around a center shaft 305.

The stepped portion between the flange portion 324 (see FIG. 4) and the crimped portion of the stepped pin 317 erected below the rotary plate 313 is provided at both ends of the guide plate 309 crimped to the fixed plate 300. Rotation is restricted by being locked to a stopper portion 325 formed so as to project forward. When the return spring 311 is rotated in the clockwise direction against the biasing force, the return spring 311 comes into contact with the other stopper portion 325 at a position rotated by about 90 ° to restrict the rotation.

According to the structure of the rotating device section 30 described above, the rotating plate 313 is rotatable around the center shaft 305, and the seat 20 fixed on the rotating plate 313.
Is also rotatable. Then, the stepped pins 317 erected in the lower part of the front surface of the rotary plate 313 are locked by the stopper portions 325 formed at both ends of the guide plate 309 crimped to the fixed plate 300 to regulate the rotation, and the return spring. A biasing force 311 is given in FIG. 1 so that the seat 10 is always directed forward (toward the control panel and the operation panel). Therefore, if the crew is in the driver's seat, seat 1
If 0 is rotated clockwise by hand, the seat 10 can be brought to a position where it can be easily seated by rotating about 90 °, and if the hand is released, the return spring 311 automatically returns to the front direction. Normally, the vertical force at the time of sitting load is transmitted from the rotating plate 313 via the center shaft 305, the slider 306 and the bolt 322, and the horizontal force is transmitted to the fixed plate 300 via the center shaft 305. Further, in the seated state, the backrest load is transmitted via the rear slider 306 and the bolt 322. When a large force such as a collision is applied to the backrest (seatback) in the backward direction, the flange 324 of the stepped pin 317 and the guide plate 308, which normally have a gap therebetween, are lifted by the front of the rotary plate 313 to make a pair. In contact with each other, the transmission of force occurs and the strength increases.

As shown in the side view in the assembled state of FIG. 2, the seat adjuster unit 40 is placed on the fixed base 100 and the elevating plate 112 of the elevating body 111 which constitute the above-mentioned vertical adjusting device section 50, and the elevating plate 112 is moved. The four male screws that have been planted on the lower rail 200 are inserted into the through holes 120 formed at the four corners, and the seat adjuster portion 40 is screwed to the elevating body 111 with the nut 81.

Further, the rotating device unit 30 is placed on the seat adjuster unit 40, and the male screws 209 set up on the upper rail 207 are inserted into the mounting holes 312 formed at the four corners of the fixing plate 300 of the rotating device unit 30. Then, screw it on, and then rotate device 3
0, the seat 20 is placed on the seat 0, screwed with the bolts 83 through the mounting holes 314 formed in the rotating plate 313, and the through hole 215 formed in the connector 213 of the seat adjuster unit 40 and the fixing plate 300 of the rotating device unit 30. Pins 310 planted downwards on the
The walk-in spring 214 is bridged in between to impart a biasing force in the direction of contracting the both, and the vehicle seat of this example is completed.

In FIG. 3, the handle 10 of the vertical adjustment device 50 is shown.
By moving 6 up and down, members above and below the ascending / descending portion are moved up and down, and a seat is provided by a cushioning member such as a gas spring interposed between the fixed base portion 100 and the ascending / descending plate 112 of the up / down adjusting device section 50. Even if 10 is a thin cushion, it is possible to form a structure that cushions the impact when sitting.

A walk-in handle 2 protruding toward the narrow space side is provided by a walk-in sprinkler 214 interposed between the seat adjuster portion 40 and the rotating device portion 50.
By operating the seat 10, the seat 20 automatically advances to the front side of the driver's control panel, and a sufficient space can be secured between the partition wall 4 and the seatback 11 and the steering wheel of the dashboard or driver's control panel, etc. The seat can be stopped at a fixed position so that the front of the seat does not hit.

Next, the rotating part by the rotating device part 30 is shown in FIG.
The parts indicated by the arrow B and above rotate, but the seat 20 rotated clockwise in the clockwise direction or against the biasing force of the return spring 311 placed at the center of rotation of the seat is The seat back 11 is brought to the right by rotating 90 °, and the seat back 11 is in a sitting position suitable for taking in and taking out from the left side. At this time, the stepped pin 317 comes into contact with the stopper portion on the left side of the guide plate 309 to move the sheet 90 °.
When the crew member leaves the seat, the return force of the return spring 311 causes the crew member to return to the position shown in FIG. At this time, the stepped pin 317 comes into contact with the right stopper portion 325 of the guide plate 309 and stops. Therefore,
It becomes an effective seat for emergency evacuation, and after leaving the seat, it automatically returns to provide an orderly cabin area.

Another structure of the vertical adjusting device and the rotating device applicable to the above-mentioned vehicle seat will be described with reference to FIGS. 5 and 6.

FIG. 5 shows an up / down adjusting device section showing another example of the structure. The parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals and their duplicate description will be omitted. The outer cylinder 102A used in this example has an upper end step portion 102B, and a height adjusting body 150 is covered on the step portion so as to be rotatable with respect to the step portion 102B. That is, the height adjuster 150 has a sleeve shape, and the spiral groove 151 is formed along the outer circumference. In addition, a cap 152 is fixed to the step portion 102B of the outer cylinder 102A on the upper side of the height adjusting body 150 so that the height adjusting body 150 can be obtained.
It is designed to prevent slipping out.

An elongated hole 154 is formed along the axial direction of the stepped portion 102B of the outer cylinder 102A, and the pin 153 serves as the inner cylinder 1.
13 is fixed to the longitudinal direction of the long hole 1 of the outer cylinder 102A.
54 and the spiral groove 151 formed in the height adjusting body 150. With the above configuration, the diameter of the pin 153 and the long hole 154
Movement is restricted in the horizontal direction by the groove width of the slot 154.
It can be moved up and down by the length of. When an external force is applied to rotate the height adjuster, the pin 153 moves up and down in the elongated hole 154 to move the lift plate 112 up and down. With this configuration, an unnecessary vertical adjusting device portion such as the handle 106 for vertical movement can be obtained.

Next, referring to FIG. 6, another structure of the rotating device will be described. In FIG. 6, parts corresponding to those in FIGS. 1 to 4 are denoted by the same reference numerals, and redundant description will be omitted. FIG. 6 shows a plan view. In this example, a pin for the rotating plate 313 and the fixed plate 300 is used without using a return spring composed of a coil spring arranged at the central position as a means for applying a rotational force to the rotating plate 313. 350 and 351 are planted, and the coil portion 3 wound between the rotating plate 313 and the fixed plate 300 during this period.
53, and the winding start end 354 and the winding end end 354 are locked to the pins 350 and 351.
The coil portions are arranged so as to urge the seats 1 away from each other at all times, and the seat 20 is biased forward or sideways. With this configuration, the seating direction holds the boarding / alighting (substantially sideways) angle, so that a rotating device unit that does not need to change the direction when seated can be obtained.

[0047]

As described above, according to the present invention, since the seat is rotatable, it is easy to sit and leave, and in particular, an operation handle for each rotation is not required. After returning from the seat, the cabin can return to a predetermined forward position, which makes it easy to escape in an emergency and provides a tidy cabin after leaving the seat.
In addition, since it can be adjusted back and forth and up and down, you can take your favorite driving posture according to the physique of the driver, and operate the walk-in lever to adjust the seat from the set position to the predetermined front azimuth position. By automatically returning, a space for the back passage can be secured when leaving and sitting, and a vehicle seat that is easy to get on and off can be provided. In addition, interference with the door is avoided, and the walk-in lever projects toward the rear of the seat, so that operability and ease of use when securing a narrow road can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a vehicle seat of the present invention.

FIG. 2 is a side view showing an assembled state of the vehicle seat of the invention.

FIG. 3 is a rear view of the vehicle seat of the present invention.

FIG. 4 is a partial cross-sectional view of a rotating device portion used in the vehicle seat of the present invention.

FIG. 5 is another configuration diagram of the vehicle seat vertical adjustment device of the present invention.

FIG. 6 is another configuration diagram of the rotating device portion of the vehicle seat of the invention.

FIG. 7 is an explanatory view of a conventional vehicle seat.

[Explanation of symbols]

 1 vehicle 10 seat 20 seat seat 30 rotating device part 40 seat adjuster part 50 vertical adjusting device part 117 gas spring 210 walk-in handle 214 walk-in spring 309 guide plate 311 return spring 317 stepped pin

Claims (4)

[Claims] 1. A vehicle seat having an ascending / descending means, a front / rear moving means, and a rotating means, which is disposed in a relatively narrow space, wherein the front / rear moving means secures a space behind a back seat of the seat. A vehicle seat, comprising: a seat back space securing means that has an operating means for operating at the time, and is capable of moving the seat to a predetermined front position by operating the operating means. 2. The vehicle seat according to claim 1, wherein the ascending and descending means includes a gas ridge for adjusting vertical movement which is also used as a cushion spring of the seat. 3. The front-rear moving means has a second operating means capable of adjusting the seat position forward and backward to an optimum position during operation, in addition to the operating means of the seat back space securing means. The vehicle seat according to claim 1 or 2. 4. A rotation restricting means for restricting a rotation range within a predetermined rotation range in order to avoid contact with devices arranged in front, rear, left and right spaces when the seat is rotated by the rotation of the rotating means. The vehicle seat according to claim 1, claim 2 or claim 3, wherein: