JPH02144256A - Side table device for rolling stock - Google Patents

Abstract

PURPOSE:To make it possible to use a large size table by providing such an arrangement that a table body is pulled out upward from an opening in the upper section of an arm rest, and after rotating the table body forward, the table body is turned down toward a seat cushion so as to be held at its use position. CONSTITUTION:Upon use of a table body 3, an upper cover 7 which is openably journalled to the upper part of an arm rest 2 is at first opened to a position shown by the one-dot chain line so as to open an opening formed in the upper section of the arm rest 2. Then, the table body 3 is pulled out in the direction C by gripping a handle 6 so as to be brought to a position 3A above the arm rest. At this stage, the table body 3 is locked by a lock means which is not shown, so as to be prevented from falling down. After rotating the table body 3 in the direction D, the table body 3 is turned down in the direction E so as to be rotated to a horizontal use position as shown by the two-dot chain line. Meanwhile, upon storage of the table body from its use position, the above- mentioned steps are carried out in the reverse order, and in this phase, the above-mentioned lock is released automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a side table device for a railway vehicle in which a table main body is pulled out from inside an armrest on the side of a seat cushion.

[Conventional technology]

BACKGROUND OF THE INVENTION It is well known that a side table device of the type described above is attached to a seat of a railway vehicle so that a passenger seated on the seat can place small items such as a cup or a map thereon.

FIG. 10 is a perspective view showing an example of a conventional side table device. When using the table body, pull the table body 3a forward as shown by arrow A from inside the armrest 2a located on the side of the seat cushion 1a, and then pull it out to the outside of the seat cushion 1a as shown by arrow B. /4 rotation, brought to the horizontal use position shown by the chain line, and fixedly supported.

By performing the reverse operation, the table main body 3a can be stored inside the armrest 2a through the opening 4a formed in the front part of the armrest 2a.

FIG. 11 shows another conventional example, in which the table main body 3b is pulled upward from the upper opening 4b of the armrest 2b, and then the lock piece 5 pivoted to the table main body 3b
b as shown by the #1 line, the table main body 3b is prevented from falling downward, and the table main body 3b is brought down to the side of the seat cushion 1b as shown by the broken line and held in a nearly horizontal use position.

As mentioned above, in the conventional side table device, when the table bodies 3a, 3b are not needed, they are stored in the armrests 2a, 2b, and only when the table bodies 3a, 3b are needed, they are stored in the armrests 2a, 2b. It can be pulled out and used.

[Problem to be solved by the invention]

However, in the side table device shown in FIG. 10, the table main body 3a is rotated to the outside of the seat cushion 1a (in the direction of arrow B) and set in the use position. It cannot be used for anything other than aisle-side armrests that have a relatively large space on the outside.

Further, since the table body 3a is pulled out from the front part of the armrest 2a, if the table body 3a is made large, it will hit the front seat or the pull-out stroke of the table body 3a will become large, making it difficult to operate. Therefore, the table main body 3a cannot be made too large. Moreover, since the table body 3a set in the use position protrudes further forward than the armrest 2a, a passenger seated on the seat cannot place an object on the table body 3a without extending his/her hand widely forward. Furthermore, the height of the table main body 3a during use is lower than the upper surface of the armrest 2a, making it difficult to use.

On the other hand, in the side table device shown in FIG. 11, since the table body 3b is pulled out from the upper part of the armrest 2b, its height can be made higher than that of the table body 3a in FIG. It is necessary to raise and lower the lock piece 5b each time the lock piece 3b is inserted or taken out, which is a cumbersome operation.

In addition, the table body set in the use position is located directly in front of the passenger seated on the seat, contrary to the case shown in Fig. 10, so if the table body 3b is made large, it may come into contact with the passenger's body. , the table body 3b
It has no choice but to be made small.

SUMMARY OF THE INVENTION An object of the present invention is to provide a side table device for a railway vehicle that eliminates all of the above-mentioned conventional drawbacks.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a side table device for a railway vehicle of the type described at the beginning, in which when the table main body accommodated in the armrest in an upright position is pulled upward from the opening in the upper part of the armrest, a guide means for guiding the table body; and a locking means for locking the table body so as to prevent the table body from falling downward in conjunction with the movement when the table body is pulled out from the opening to the outside of the armrest. .

a hinge means for rotating the pulled-out table body in a direction away from the seat back, and then tilting the table body toward the seat cushion side to rotate the table body to a substantially horizontal use position; and a hinge means for raising the table body from the use position. When the body is rotated toward the seat back and stored inside the armrest, it is linked to the storage operation.

The present invention proposes a side table device comprising a lock release means for releasing the locked state by the lock means.

[Effect]

After the table main body is pulled upward from the opening in the upper part of the armrest, the main body is locked, and then the main body is rotated in a direction away from the seat back.

Fold it towards the seat cushion side and hold it in the use position.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a seat for a railway vehicle having a side table device according to the present invention. First, the outline of the side table device will be explained with reference to this figure.

When the table main body 3 is not in use, the main body 3 is stored in the space inside the armrest 2 in an upright position, and only a part of the handle portion 6 is exposed to the outside.

When pulling out the table body 3, the upper M7, which is pivotally supported on the upper part of the armrest 2 so as to be freely openable and closable, is opened as shown by the dashed line, and the opening 4 in the armrest is opened.

Next, the user grasps the handle 6 and pulls the table main body 3 upward as shown by the arrow C, and brings it to the position 3A above the armrest 2 as shown by the dashed line.

At this time, the table body 3 is automatically locked by a locking means to be described later so that it does not fall downward.

Subsequently, the table main body 3 is rotated in a direction away from the seat back 8, that is, in the direction indicated by the arrow, and brought to a position 3B indicated by a broken line, and the main body 3 is further moved away from the seat cushion 1 as indicated by an arrow E. , and rotate it to the almost horizontal use position (position 3C) shown by the two-dot chain line. All you have to do is close the top lid 7 and all operations are complete. In this way, small items such as a cup can be placed on the table main body 3 and used.

When storing the table body 3, open the top lid 7, raise the body 3 from the usage position shown by the two-dot chain line to the position shown by the broken line, and then rotate the main body 3 toward the seat back 8. - It is rotated to the position indicated by the dotted line, that is, the position indicated by the symbol 3D, where the rear side thereof is slightly lower than the position indicated by the symbol 3A indicated by the dotted chain line. At this time, the aforementioned lock means is automatically unlocked by a lock release means which will be explained in detail later. Therefore, the table main body 3 can be directly dropped downward and stored inside the armrest 2.

According to the above-mentioned side table device, it is possible to form the table main body 3 larger than before. The first reason is that the table body 3 accommodated in the armrest 2 is configured to be pulled out in the L direction from the upper opening 4 of the armrest 2, so even if the table body 3 is made large, it cannot be pulled out. When, the main body 3 force transfer if
The second reason is that you don't have to worry about hitting the other seat.

The table body 3 that has been pulled out is rotated in the direction indicated by the arrow, away from the seat back 8, that is, away from the passenger (not shown) seated on the seat, so that even if the table body 3 is large, it will hit the passenger's body. Because there is no fear.

Furthermore, since the table body 3 is pulled out from a part of the armrest 2, it can be set at a high position, and the usability of the table body 3 can be improved. Moreover, since the table body (3) pulled out by the upper blade is rotated in the direction away from the passengers, the table body (1-) that has been moved to the use position can be placed in an appropriate position that is neither too crowded nor too close to the passengers. If'? occupies a large amount of space, and its usability is improved.

Further, since the table body 3 rotated to the position indicated by the broken line is tilted toward the seat cushion 1, the table body 3 can be taken in and out even if there is no large space outside the seat. Therefore, this side table device is limited to armrests on the aisle side.

It can also be used as an armrest on the window side without any problems.

Moreover, as will be explained in detail later, the locking or releasing operation of the locking means is automatically performed in conjunction with the pulling out or storage operation of the table main body, and the locking piece can be locked as in the conventional device shown in FIG. 11. There is no need for complicated operations such as raising or lowering 5b.

Next, a more specific example of the configuration of the side table device Z will be explained.

Figure 2 is a diagram with a part of the armrest 2 cut away to reveal the structure of the side table device inside it, and Figure 3 is a diagram showing the structure of the side table device inside.
The figure is a perspective view showing a portion thereof.

In these figures, a support body 10 that supports the table body 3 via a hinge means 9 is disposed inside the armrest 2, and a fourth
As shown in the figure, guide rollers 12.12 and lock pins 13 are supported. Note that 50 in FIG. 2 is
This is a cover that constitutes a part of the support body 10.

On the other hand, inside the armrest 2, a guide rail 14 extending vertically is fixed to the frame 43 of the armrest 2.
The guide roller 12, 12 and lock pin 13 described above are fitted into the guide groove as shown in FIG. At this time, the lock pin 13 is slidably fitted into the support body 10 in the axial direction of the pin 13. Further, a compression spring 15 is wound around the lock pin 13, and each end of the compression spring 15 is in pressure contact with a spring receiver 16 fixed to the guide pin 13 and the support body 10. As a result, the lock pin 13 is biased to the right in FIG. 4, and when the table main body 3 is stored in the armrest 2 as shown by the solid line in FIG. Press against the bottom of the groove.

When pulling out the table body 3 housed in the armrest 2 in an upright position as shown by the solid line in FIG. At this time, the hinge means 9 and the support 10 are also lifted upwards, and the guide rollers 12,12 roll in the guide grooves of the guide rail 14 and are supported by the support 10. The table main body 3 is guided by a guide rail 14.

In this way, the guide rail 14 and the guide roller 12.
Reference numeral 12 represents a configuration example of a guide means for guiding the table body when the table body is pulled upward from the opening in the upper part of the armrest.

When the table main body 3 is pulled up to the position 3A indicated by the dashed line in FIGS. Consistent with (see also Figures 2 and 3),
The lock hole 17 is engaged by the pressing action of the compression spring 15. Therefore, the support body 10 and the table main body 3 supported by the support body 10 are prevented from falling downward from the position indicated by the dashed line. That is, when the table main body 3 is pulled upward, the main body 3 is automatically locked in conjunction with this movement to prevent it from falling. There is no need to perform any special locking operations.

As mentioned above, in this example, the lock pin 13. The spring 15 and the lock hole 17 are linked to the movement when the table body is pulled out of the armrest.

To prevent the table body from falling downward,
It constitutes a locking means for locking the main body.

After pulling out the table body 3 to the position shown by the dashed line, rotate it to the position 3B shown by the broken line as described above, stop it at this position by a stopper (not shown), and then turn it. It is folded down to the use position indicated by the dashed-dotted line 3C shown in FIG. 1, and this operation is performed by the hinge means 9 briefly shown above. A specific example of the configuration will be explained below.

The hinge means 9 in this example has a hinge main body 18 as shown in FIGS. 2, 6, and 7, and the front lower part of the table main body 3 is pivoted to the main body 18 via a hinge pin 19. It is worn. The center axis of the hinge pin 19 extends in the lateral direction of the sheet, that is, in the direction perpendicular to the plane of the paper of FIG.

Further, a cylindrical portion 20 is integrally formed in the lower part of the hinge body 18, and a center hole 21 thereof extends in a direction perpendicular to the central axis of the hinge pin 19, that is, in the front-rear direction of the seat. A pivot pin 22 passes through the center hole 21, and a pair of semi-cylindrical members 24, 24 are fitted into a small diameter portion 23 formed at the center of the pivot pin 22. At this time, the tips of the screws 25 and 25 screwed into the cylindrical portion 20 engage with the outer peripheral surface of one of the semi-cylindrical members 24. In this way, the semi-cylindrical member 24.24 is integrally connected to the hinge body 18 and is rotatable relative to the small diameter portion 23 of the pivot pin 22. At this time, by adjusting the tightening force of the screws 25, 25, the frictional force between the small diameter portion 23 and the inner circumferential surface of the biaxial cylindrical member 24, 24 can be adjusted appropriately. The pivot pin 22 is fixed non-rotatably by a key 51 in a hole 27, 27 of a support bracket 26 screwed to the support 10.

As mentioned above, the table body 3 is indicated by the symbol 3 indicated by a dashed line.
After pulling it out to position A, push it in the direction of the arrow.
The main body 3 is connected to the seat back 8 around the hinge pin 19.
(FIG. 1) and occupies the position indicated by 3B.

Next, when the table body 3 is pushed in the direction of arrow E (FIG. 1), the table body 3 is moved to the hinge body 18 and the pair of semi-cylindrical members 24.
．． 24, it is tilted toward the seat cushion side around the pivot pin 22, and is stopped by a not-shown stopper at the use position 3C shown by a two-dot chain line in FIG.

During this tilting, a frictional force acts between the semi-cylindrical member 24.24 and the small diameter portion 23 of the pivot pin 22, so that the table body 3
will not suddenly fall into the position of use. Table body 3
While pressing , you can steadily push it down to the use position 3C.

When storing the table main body 3, the table main body 3 is rotated in the opposite direction to the above-mentioned direction and brought to the position indicated by the dotted line 3D, but the above-mentioned locked state is released by this operation.

Here, a specific example of the configuration of the lock release means that performs this lock release operation will be explained.

As shown in FIGS. 2 and 8, a bracket 28 is fixed to the horizontal arm 31 of the support 10, and a release arm 30 is connected to the bracket 28 via a pin 29, as indicated by the arrow in FIG. It is pivoted so that it can swing in the direction. A rod 32 is pivotally attached to the rear end of the release arm 30, and a lower portion of the rod 32 is slidably fitted into a hole 33 of the horizontal arm portion 31. At this time, the spring receiver fixed to the rod 32 has a compression spring 35 between the ring 34 and the horizontal arm part 31.
The rod 32 is pressed upward, but the stopper 36 fixed to the rod 32 hits the horizontal arm 31, and the rod 32 is held in the position shown in FIG. Further, a roller 37 is rotatably supported at the upper end of the rod 32.

On the other hand, as shown in FIG. 4, a regulating member 3 extending downward is attached to the front end of the release arm 3o via a pin 38.
9 is pivoted. The lower part of the regulating member 39 is formed into a fork shape, and this fits into the lock pin 13 described above. Further, a tapered cam surface 40 is provided at the lower part of the regulating member 39.
(FIGS. 4 and 5) is formed, and a tapered surface 41 is also formed in the portion of the pin 13 that faces this.

The release arm 30 and the rod 32 and regulating member 39 connected thereto are normally held in the position shown in FIG. 2, but as described above, the table body 3 is rotated from its use position to the position 3A. When the main body 3 is further rotated about the hinge pin 19 to a position 3D where the rear part is slightly depressed, the lower rear edge of the table main body 3 moves the roller 37 downward as shown in FIG. Push it in.

Then, the release arm 30 rotates around the pin 29 in the clockwise direction in FIG. 2 against the action of the spring 35.
The regulating member 39 is lifted upward. Along with this movement, the cam surface 40 at the bottom of the regulating member 39 moves against the lock pin 13.
Press the surface 41 to the left in FIG. Therefore, the lock pin 13 that had been engaged with the lock hole 17 of the guide rail 14 comes off from this hole 17. As a result, the table main body 3 is unlocked, and the main body 3 can be directly lowered and stored inside the armrest 2.

In this way, when the table main body 3 is raised from the use position and then rotated toward the seat back side to be stored in the armrest main body, the above-mentioned lock release means is activated in conjunction with the storage operation. This automatically releases the locked state.

In addition, together with the table body 3, the hinge means 9 and the support body 1
0 also descends, and the lower end of the support body 10 comes into contact with the frame 43 of the armrest 2 as shown in FIG. 2, and this stops.

Further, as shown in FIG.
A bracket 46 is fixed to the bracket 46, and a stopper rod 42 is fitted to the bracket 46 so as to be slidable in the vertical direction, and a stopper 44 is fixed to the upper end of the rod 42. When the table main body 3 is at the lowest position shown by the solid line in FIG. It rests on the table and maintains a horizontal position. When the table body 3 is lifted upward together with the support body 10 and the hinge means 9 as described above, the stopper rod 42 remains supported by the member 45, but before the table body 3 reaches the uppermost position indicated by the dashed line. , the stopper 44 of the rod 42 hits a bracket 46 fixed to the horizontal arm portion 31 of the support 10, and the stopper rod 42 is taken upward. When raising the table body 3 in this way,
The stopper 44 is separated from the table body 3.

Due to the frictional force acting between the hinge pin 19 and the table body 3, the table body 3 moves upward while maintaining the posture shown by the solid line in FIG. When the table main body 3, which has reached the uppermost position, is rotated in the direction of the arrow, it is pressed with a force that overcomes the above-mentioned frictional force.

When the main body 3 is brought to the position indicated by the symbol 3D during the storage operation of the table main body 3, the lock is released and the table main body 3 is lowered, but at the time of this lowering, the table main body 3 is in an inclined position with its rear side lowered. , that is, code 3D
Maintain the posture shown.

As the table main body 3 descends, the lower end of the stopper rod 42 hits the support member 45 and stops before it reaches the lowest position. The table body 3 continues its downward movement, but at this time, the lower edge of the rear region of the table body 3 hits the stopper 44 at the upper end of the stopper rod, which has already stopped. Therefore, the table body 3 rotates around the hinge pin 19 in the counterclockwise direction in FIG.
When the main body 3 reaches the lowest position shown by the solid line in FIG. 2, the main body 3 becomes horizontal and the retracting operation is completed.

〔Effect of the invention〕

According to the present invention, the following effects can be obtained.

■The table body can be made large and many items can be placed on it.

■The height of the table body set in the use position can be made equal to or higher than the upper part of the armrest, improving ease of use.

■The table body set in the use position can be placed in a position that is neither too far away nor too close to the passenger seated on the seat.

■Side table device other than the armrest on the aisle side,
For example, it can be used as an armrest next to a window.

■Easy to put in and take out the table body.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a seat equipped with a side table device according to the present invention, Fig. 2 is a view with the armrest cut away to clearly show the side table device inside, and Fig. 3 shows the main parts of the side table device. Perspective view, Figure 4 is IV- of Figure 2.
5 is a sectional view similar to FIG. 4 when the lock pin is engaged in the lock hole, FIG. 6 is an exploded perspective view of the hinge means, and FIG. 7 is a sectional view of the hinge means. , FIG. 8 is a plan view of the support body viewed in the direction of the arrow ■ in FIG. 2, FIG. 9 is an explanatory diagram explaining the action of the lock release means, and FIGS. FIG. 2 is a perspective view for explanation. 1... Seat cushion 2... Armrest 3
...Table body 4...Opening 8...Seat back 9...Hinge means agent Patent attorney
Norio Hoshino Figure 10 Figure 1

Claims (1)

[Claims] In a side table device for a railway vehicle in which the table body is pulled out from inside an armrest on the side of a seat cushion, the table body housed inside the armrest in an upright position is pulled out from an opening at the top of the armrest. a guide means for guiding the table body when pulled upward; and a guide means configured to prevent the table body from falling downward in conjunction with this movement when the table body is pulled out from the opening to the outside of the armrest. a locking means for locking the table body; a hinge means for rotating the pulled-out table body in a direction away from the seat back, and then tilting the table body toward the seat cushion and rotating the table body to a substantially horizontal use position; The main body is raised from the use position, then rotated toward the seat back side, and when the main body is stored inside the armrest, a lock release means is provided for releasing the locked state by the locking means in conjunction with the storage operation. A side table device characterized by: