JPH0832507B2 - Vehicle stool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stool device for a vehicle, and more particularly to a stool device that is convenient for a vehicle such as a railroad vehicle or a bus, which is used by many people.

[0002]

2. Description of the Related Art Vehicles such as railroad cars and buses on which a large number of people ride are in a rush state during commuting hours and school hours, and otherwise passengers are extremely reduced.

However, the stool of a vehicle equipped with these is generally permanently installed regardless of whether it is a box seat or a long seat.

On the other hand, a folding type simple seat is also provided on the back of a permanent stool, etc., so that the passengers can be seated in the retracted state during rush hours so as to get on the riding efficiency, and can be put in the seats in the used state during non-rush hours.

[0005]

However, just by putting some of the simple seats in the stored state or in the used state as described above, there is no big difference in the number of seats, and there is no difference between the rush time and the non-rush time. It is not very useful for different uses.

Therefore, it may be possible to switch all seats between the stored state and the used state.

However, the structure of the conventional folding type simple seat, which uses the permanent stool as a support base, cannot be provided without the permanent stool, and does not have an armrest, thus ensuring passenger safety. hard.

If an armrest is provided and the armrest is also switched between the storage position and the use position, the operation becomes complicated and inconvenient to use.

On the other hand, a conventional folding type simple seat is always locked in a retracted state and unlocked by remote control during non-rush time so that a passenger can pull out and use the simple seat as needed. It is also known to be able to.

However, in such a structure, it is unstable to maintain the usage state. When this is used for the same use as a permanent stool during non-rush hours, the stool should be carelessly used when it is used as a stool or when a passenger leans on his / her body or leans against the body due to the shaking of the vehicle. It is dangerous to move and makes passengers anxious.

In order to solve this problem, if the stool is urged toward the use position for stability in use, the stool will not be stable by itself, and at the same time the lock is released, the stool will be unconditionally used. Since the train will be overhanging, the time for switching to the use state is limited to the time when there are no passengers in the train, etc. where the state of all passengers cannot be confirmed.

It is also conceivable to carry out the entire process of switching between the use position and the storage position of the stool by the drive mechanism so as to stabilize the stool in any state. However, in this case, the structure becomes complicated and expensive, the weight of the vehicle is increased, and high-speed traveling performance is impaired.

Therefore, the present invention has an object to solve the above-mentioned problems, and a skillful combination of an urging direction of a seat, a locking means, an unlocking means, and an operating means cooperating with the urging means of a seat. It is an object of the present invention to provide a seating device for a vehicle, which has a simple structure, does not occupy a lot of space and does not weigh depending on the way of working, and is safe to use.

[0014]

In order to achieve the above-mentioned object, the vehicle seating apparatus according to the first aspect of the present invention is provided between a use position which is interlocked with each other and protrudes forward, and a storage position along the backrest. Biasing means for urging the seat body and the armrest pivotally supported so that the seat body can be pivoted to the storage position side, and the seat body is automatically and manually locked appropriately in the use position and the storage position,
In addition, it is provided with a locking means that can be released automatically and manually as appropriate, and the biasing means and the locking means are provided for each of the shafts that are integrally projected from the left and right sides of the seat body and are supported so that the seat body can rotate. Position detecting means for activating the means and detecting the use position and the storage position of the seat body by the rotational position of the cam portion of the cam board provided on one shaft, and the position detection information from the position detecting means is used to detect the seat body. It is characterized in that the locking means is automatically locked in response to reaching the use position and the storage position. According to a second aspect of the present invention, in addition to the first aspect, the position detecting means is a switch member that is pushed by the cam portion of the cam disc in correspondence with the use position and the storage position of the seat body, and the cam disc is It is provided so that the position can be adjusted in the rotation direction with respect to the rotation axis. The invention of claim 3 is,
In any one of the inventions described above, the urging means is a compression type gas damper, and has a locking means capable of locking the gas damper at an expansion / contraction position corresponding to a use position and a storage position of the seat body, and each rotating shaft. There is a separate fixed stopper that is actuated between the tip of the passive lever provided on the and the fixed fulcrum provided at the upper position of the passive lever and that receives the rear portion of the seat body from above when the seat reaches the use position. . The invention according to claim 4 further comprises, in any one of the inventions according to claims 1 to 3, further longitudinally hollow sleeve bodies for bearing respective shafts of the seat body on the left and right sides of the seat body. The urging means acting on the shaft, the operating means and the locking means are built in together with other necessary elements.

[0015]

In the above construction of the invention of claim 1, since the seat body and the armrest are interlocked with each other, the means necessary for appropriately rotating and locking the seat body and the armrest can be made common. Since the structure is simplified and the weight is light and the volume is low, it contributes to speeding up of the vehicle and also reduces the cost.
Since the seat body and the armrest are biased toward the storage position side by the biasing means and rotated by the operating means to the use position, it is prioritized that the seat body and the armrest are in the storage position, and the use position is adjusted according to need. It is rotated only by the action of the operating means and is not inadvertently placed in the use position. Since the seat body and the armrest are locked by the locking means in both the use position and the storage position, the seat body and the armrest can be stably held at the respective positions determined by the biasing means and the manual operation of the seat body. , It can be used safely by avoiding inadvertent change of position and rattling. Further, since the urging means and the locking means are integrally projected from the left and right sides of the seat body and are collectively acted on the respective shafts which are rotatably supported by the seat body, the structure is further simplified, and the size and cost are reduced. On the other hand, since it works on both sides of the seat through each shaft, even if the seat is long, it can be stably rotated and used as a whole without twisting the seat. . Further, the detecting means detects the use position and the storage position of the seat body by the rotational position of the cam portion of the cam disk provided on one shaft integral with the seat body and rotating integrally with the seat body. The rotational position of can be accurately detected without any positional deviation, and the locking means that acts on each axis is activated by detecting the position from this one axis, so that there is no deviation in the operating timing of the left and right locking means. be able to.

According to the above configuration of the invention of claim 2,
Further, the position detecting means is a switch member that is pushed by the cam portion of the cam disk in correspondence with the use position and the storage position of the seat body, and the cam disk adjusts the position in the rotational direction with respect to the rotating shaft. Since it is provided so that it is possible to freely adjust the timing of pushing the switch member by the cam part of the cam board when the seat reaches the use position and the storage position, the rotation position of the cam board can be adjusted. It is possible to easily deal with the manufacturing error and the assembly error of each seat by adjusting only and to achieve proper detection of the use position and the storage position of the seat.

In the above configuration of the third aspect of the invention, the urging means may be a compression type gas damper in the first aspect of the invention, and the operating means may contract the gas damper as required. And a lock means for locking the gas damper in the expansion / contraction position corresponding to the use position and the storage position of the seat body, and therefore, in order to collectively operate each of these means on the integral shaft of the seat body, It can be made into a rod-shaped structure, which is smaller and less bulky. Further, since the gas dampers are respectively actuated between the tip of the passive lever provided on each rotary shaft and the fixed fulcrum provided above the passive lever, the bulkiness toward the front is further reduced and the seat body When it reaches the use position, its rear part is received from above by the fixed stopper.Therefore, when a person sits down on the seat and when a large load is applied, the fixed stopper that does not operate causes rattling or escape. Can be firmly supported without.

According to the above configuration of the invention of claim 4,
In any one of the inventions 1 to 3, there are further provided vertical and hollow sleeve bodies for bearing the respective shafts of the seat body and the backrest, and biasing means that act on the respective shafts in the sleeve body and Since the locking means is built in together with other necessary parts, it is possible to substantially follow the usual stool shape in which the sleeve body and the armrests are provided on the left and right sides of the backrest and the seat body.

[0019]

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

This embodiment shows a case where the present invention is applied to a railway vehicle, and as shown in FIG. 1, all of the stools 2 as long seats provided along the side surface 1 of the vehicle are retractable. There is.

As shown in FIGS. 1 and 2, the stool 2 has a side surface 1
Upper backrest 4 fixed to the inner surface of the backrest, this backrest 4
Has sleeve bodies 7 and 8 fixed to the side surface 1 on both sides of the seat body 5 and the armrest 6 on the sleeve bodies 7 and 8 and pivotally supported by shafts 11 and 12 integrated with these, respectively. Figure 1 (1)
2 and (4) of FIG. 2 between the storage position shown in FIG. 2 and the use position shown in (3) of FIG.

At the lower part of the backrest 4 between the sleeve bodies 7 and 8, a seating plate 3 is detachably attached, which covers the installation portion of the heating appliance 9 provided along the side surface 1, and is placed in the use position. Heat the feet of passengers seated in.

A bearing 21 and a bearing bracket 22 are fixedly mounted in the sleeve bodies 7 and 8 for bearing the shafts 11 and 12 and rotatably supporting the seat body 5 and the armrest 6.

In each sleeve body 7, 8, as shown in FIGS. 3, 4, 5, and 6, a passive lever 13, which is fixed to shafts 11 and 12 which pivotally support the seat body 5 and the armrest 6, The rods 14 are connected to each other. As a result, the rotation of the seat body 5 and the armrest 6 between the storage position and the use position is interlocked with each other.

Further, in each of the sleeve bodies 7 and 8, a commercially available compression type gas damper 17 is operated between the passive lever 13 on the seat body 5 side and the sleeve bodies 7 and 8, and the seat body 5 is stretched by the extension habit. The armrest 6 is urged directly or indirectly toward the storage position.

As a result, the seat body 5 and the armrest 6 are shown in FIG.
It is stabilized at the storage position shown in (1).

As shown in FIG. 7, the gas damper 17 moves the oil 44 before and after the piston 41 by moving the piston 41 by opening and closing an orifice hole 42 penetrating the piston 41 forward and backward by a spool valve 43. 7 is enabled or disabled to allow the piston 41 to move, as shown in FIG. 7 (2), in the unlocked state, or when the piston 41 cannot move, as shown in (1) or (3) of FIG. It can be selectively operated in a locked state.

The gas damper 17 is provided with the compressed gas 4 which is isolated by the free piston 45 with respect to the sealed portion of the oil 44.
6 has a sealed portion at one end, and the pressure of this gas 46 works so as to constantly push the piston 41 and the spool valve 43 to the left in FIG.

As a result, the spool valve 43 is normally closed, but each time the push rod 47 is pushed in, the spool valve 43 is opened as shown in FIG.
1, the piston rod 48 is pushed by the pressure of the gas 46 to the extended position side shown in (1) of FIG. 7, and the seat body 5 and the armrest 6 are rotated to the retracted position side. When the seat body 5 is forcibly rotated to the use position against this rotational force, the piston rod 48 is pushed toward the contracted position side shown in (3) of FIG. 7 while compressing the gas 46. It

At any movement position of the piston 41, when the pushing motion of the push rod 47 with respect to the spool valve 43 is released, the spool valve 43 is immediately closed by the pressure of the gas 46, and the piston 41 is moved as shown in FIG. Lock at the current position as shown in (1) or (3).

In this embodiment, such a gas damper 17 is used.
In order to control the locking and unlocking of the sleeve, as shown in FIGS. 8 and 9, the rotary solenoid 24 is provided in each sleeve body 7, 8.
The gas damper 17 is provided with a pushing plate 16 facing the protruding end of the push rod 47.

A rotary plate 25 directly connected to the rotary solenoid 24 and the push plate 16 are directly connected by a release wire 26, and the push plate 16 is operated via the release wire 26 by turning on and off the rotary solenoid 24. It is possible to control the locked state and the unlocked state by means of.

The turntable 25 has a base 25a directly connected to the rotary solenoid 24 and the base 25a.
And a release wire 26 is connected to the operation plate 25b, and a cam 25c is formed on the outer periphery of the operation plate 25b to detect a locked state. Limit switch 27
The actuator 27a is slidably contacted with the rotary solenoid 24 to detect whether the gas damper 17 is locked or unlocked.

Further, as shown in FIG. 9, a foot pedal 28 pivotally supported on one sleeve body 8 by a shaft 29 is also connected to each push plate 16 by a release wire 30. The locks of the gas dampers 17 on the left and right sleeve bodies 7 and 8 can be manually released.

However, since the foot pedal 28 is for emergency use, it is attached to the inside of the sliding plate 3 of the sleeve body 8 so as not to be operated unnecessarily. As a result, the foot pedal 28 can be operated only by removing the sliding plate 3.

A window is provided in a portion of the sliding plate 3 facing the operation portion of the foot pedal 28, and the sliding plate 3
It is also possible to say that the foot pedal 28 can be operated from the outside without removing.

Further, a stopper 32 is fixedly attached to each of the sleeve bodies 7 and 8 so that a contact plate 31 projecting from the rear portion of the frame of the seat body 5 comes into contact with the seat body 5 when the seat body 5 is in the use position. Therefore, when a large number of people sit on the seat body 5 in the use position at the same time, the seat body 5 is further rotated beyond the use position under a load that cannot be resisted when the gas damper 17 is locked. However, this rotation can be blocked by the stopper 32, and the seat body 5 can be firmly stabilized in the use position.

Further, each support shaft 1 of the seat body 5 in the sleeve body 7
1, a cam disk 51 is provided as shown in FIG.
The cam disk 51 is composed of an inner cam 51a and an outer cam 51b, each of which is capable of position adjustment in the rotational direction, and an actuator 52a of a limit switch 52 for detecting the position of the seat 5 is slidably contacted with the inner cam 51a.

The limit switch 52 detects that the seat 5 is in the use position by contacting the step 52c of the inner cam 51a with the actuator 52a, and the outer cam 51a.
It is detected that the seat body 5 is in the retracted position by the actuator 52a coming into contact with the step 51d of b.

FIG. 11 shows a control circuit. In this control circuit, a case where each vehicle has 10 seats 2 is shown. Each seat 2 has rotary solenoids 24a ₁ , 24b _1, ... For locking and unlocking the gas damper 17.
_..., 24a _10, 24b ₁₀ are provided, these rotary solenoid _{24a 1, 24b 1, ......,} 24a 10, 24
b ₁₀ to the solenoid excitation relay 61a corresponding to these
_It is controlled by ₁ , 61b ₁ , ... 61a ₁₀ , 61b ₁₀ .

These solenoid excitation relays 61a ₁ ,
Each pair of 61b ₁ , ... 61a ₁₀ , 61b ₁₀ includes an upper limit switch 52u ₁ , ... 52u ₁₀ incorporated in a limit switch 52 for detecting the position of the seat 5 and a lower limit switch 52d _1, .... ... 52d ₁₀ and limit switches 27a for detecting respective lock states corresponding to these pairs
It is controlled by a combination of the operations of ₁ , 27b ₁ , ... 27a ₁₀ , 27b ₁₀ and the storage switch 62 and the withdrawal switch 63.

Reference numeral 64 in the drawing is a storage switch holding relay, and 65.
a ₁ and 65b ₁ are pull-out switch holding relays, 66 is an auxiliary relay, and 67 is solenoid excitation relays 61a ₁ and 61
b _1, set side excitation timer _{...... 61a 10, 61b 10, 35a} 1, 35b 1 ...... 35a 10, 35b 10 is displayed lamp, 36a, 36b is controlled indication lamp, 68a, 68b in the control indication lamp holding relay is there.

The operation will be described below. In the retracted state of the seat body 5 and the armrest 6 shown in (1) of FIG. 2, the gas damper 17 is locked, and the seat body 5 and the armrest 6 are firmly stabilized in the retracted position. ing. At this time, the indicator light 35
Is off.

In this state, even if the passenger tries to use the stool, the gas damper 17 in the locked state can prevent the stool from being impaired, and the riding rate at the time of rush can be prevented from being impaired.

In the retracted state, the rotary solenoid 24
When the gas damper 17 is actuated, the push rod 47 is pushed by the pushing plate 16 to be in the unlocked state, so that the piston rod 48 tries to extend due to the pressure of the gas 46 and the seat body 5 and the armrest 6 are moved to the retracted position. Energize as there is.

At this time, since the piston 41 of the gas damper 17 can be moved, the seat body 5 and the armrest 6 can be rotated to the use position while contracting the seat body 5 and the armrest 6 against the biasing force of the gas damper 17. The lamp 35 is turned on to display that it is ready for use.

Then, the passenger or the like can know that it is in the usable state by turning on the indicator light 35, can rotate the seat body 5 to the use position as necessary, and can use it. Since there is no one-time extension to the use position irrespective of the state, there is no time limit to the switching to the use state.

When the seat 5 and the armrest 6 are in the use position, this is detected by the limit switch 52, and the gas solenoid 17 is locked by releasing the action of the rotary solenoid 24.

A stopper 69 also works on the armrest 6 via the passive lever 14 so as to receive the downward rotation load received by the armrest 6 in the use position.

Therefore, the load caused by the passenger sitting on the seat 5 and the armrest 6 resting on the stopper 3
The seats 5 and the armrests 6 are received and stabilized by the passengers 2, 69, and firmly prevent them even if the seat body 5 and the armrest 6 are obstructed or unnecessary and the passengers try to switch them to the storage position without permission. Therefore, after that, it can be used in the same manner as a conventional permanent stool, and it is possible to eliminate the danger of use, rattling, and careless movement that may cause anxiety to passengers.

When the stool 2 is switched to the retracted position in order to cope with a rush hour, when the rotary solenoid 24 is actuated again, the gas damper 17 is unlocked again and the seat body 5 and the armrest 6 are in the operating positions. Since the state in which the seat body 5 and the armrest 6 are locked is changed to the state in which they are biased toward the storage position, the seat body 5 and the armrest 6 are rotated to the storage position at the safe speed set in the gas damper 17.

When the rotary switch is moved to the retracted position by this rotation, this is detected by the limit switch 52. Therefore, the rotary solenoid 24 is released from the action again by this detection so that the gas damper 17 is locked and the retracted position is reached. The seat body 5 and the armrest 6 that have been mounted are locked in that position to prevent the seat body 5 and the armrest 6 from being used by being arbitrarily switched to the use position, and inadvertently protruding to the use position, which may be dangerous to passengers and the like. Such a thing can be avoided.

[0053]

According to the first aspect of the present invention, the means necessary for appropriately rotating and locking the seat body and the armrest between the use position and the storage position can be made common, and the structure is simplified. It is lightweight and lightweight, which contributes to speeding up the vehicle and reduces cost. The seat body and the armrest are prioritized to be in the retracted position by being biased, and the seat body and the armrest are not swung into the use position carelessly because the seat body and the armrest are rotated only by the action of the operation means as necessary. The seat and armrests are locked in both use and storage positions,
The seat body and armrests can be stably held at each position determined by the manual operation of the biasing means and the seat body, and it can be used safely without inadvertent change of the position or rattling. it can. Further, since the urging means and the locking means are integrally projected from the left and right sides of the seat body and are collectively acted on the respective shafts which are rotatably supported by the seat body, the structure is further simplified, and the size and cost are reduced. On the other hand, since it works on both sides of the seat through each shaft, even if the seat is long, it can be stably rotated and used as a whole without twisting the seat. . Further, the detecting means detects the use position and the storage position of the seat body by the rotational position of the cam portion of the cam disk provided on one shaft integral with the seat body and rotating integrally with the seat body. The rotational position of can be accurately detected without any positional deviation, and the locking means that acts on each axis is activated by detecting the position from this one axis, so that there is no deviation in the operating timing of the left and right locking means. be able to.

According to a second aspect of the present invention, in addition to the first aspect of the invention, the position detecting means is a switch member which is pushed by the cam portion of the cam board in correspondence with the use position and the storage position of the seat body. Since the cam board is provided so that its position can be adjusted in the rotational direction with respect to the rotating shaft, the timing of pushing the switch member by the cam part of the cam board when the seat reaches the use position and the storage position. Can be adjusted freely, and by simply adjusting the rotational position of the cam board, it is possible to easily deal with manufacturing and assembly errors for each seat and achieve proper detection of the seat use and storage positions. can do.

According to the invention of claim 3, in any one of the inventions of claims 1 and 2, the biasing means is a compression type gas damper, and an operating means for contracting the gas damper as required. Since the gas damper has locking means capable of locking the gas damper in the expansion / contraction position corresponding to the use position and the storage position of the seat body, one rod-shaped member can be used to collectively operate these means on the integral shaft of the seat body. It can be compact and compact without being bulky. Further, since the gas dampers are respectively actuated between the tip of the passive lever provided on each rotary shaft and the fixed fulcrum provided above the passive lever, the bulkiness toward the front is further reduced and the seat body When it reaches the use position, its rear part is received from above by the fixed stopper.Therefore, when a person sits down on the seat and when a large load is applied, the fixed stopper that does not operate causes rattling or escape. Can be firmly supported without.

According to the invention of claim 4, in any one of the inventions of claims 1 to 3, there are further provided vertical and hollow sleeve bodies for bearing respective shafts of the seat body and the backrest. However, since the urging means and the locking means that act on each axis are built into this sleeve along with other necessary items, the usual stool shape with sleeves and armrests on the left and right of the backrest and seat is almost followed. can do.

[Brief description of drawings]

FIG. 1 is a perspective view of a part of a vehicle showing an embodiment in which the present invention is applied to a railway vehicle.

FIG. 2 is a side view showing a state change between a use position and a storage position of the stool of FIG.

FIG. 3 is a side view showing the internal structure of the left-side sleeve body of the seat of FIG.

FIG. 4 is a front view of the internal structure of the sleeve body of FIG.

5 is a side view showing the internal structure of the right side sleeve body of the seat of FIG. 1. FIG.

FIG. 6 is a front view of the internal structure of the sleeve body of FIG.

FIG. 7 is a schematic cross-sectional view showing a lock mechanism of the gas damper.

FIG. 8 is a side view of an unlocking operation system of the gas damper.

9 is a front view of the unlocking operation system of FIG. 8. FIG.

FIG. 10 is a side view of a seat body position detection mechanism.

FIG. 11 is a control circuit diagram.

[Explanation of symbols]

 2 seat 5 seat 6 arm rest 7, 8 sleeve 11, 12 axis 15 rod 16 pusher plate 17 gas damper 24 rotary solenoid 25 turning plate 26 release wire 27 limit switch 43 spool valve 47 push rod 51 cam plate 52 limit switch 62 Storage switch 63 Drawer switch

Claims (4)

[Claims] 1. A use position which is interlocked with each other and protrudes forward.
So that it can pivot between the retracted position and the retracted position along the backrest.
An urging hand that urges the seated body and armrests supported toward the storage position.
Steps and seats are automatically and automatically
It can be locked manually and released automatically and manually as needed.
A seating device for vehicles equipped with locking means
The seat body to the left and right so that the seat body can rotate.
For each of the shafts received, the biasing means and lock
Rotation of the cam part of the cam board installed on one shaft
Detects the use position and storage position of the seat by position
Position detection means is provided, and position detection from this position detection means
The information reaches the use position and the storage position of the seat.
To automatically lock the locking means according to
Seating device of the vehicle, characterized in that the. 2. The position detecting means includes a use position and a storage position of the seat body.
Switch pushed by the cam part of the cam board corresponding to the
The cam member is positioned in the direction of rotation with respect to the rotating shaft.
The vehicle according to claim 1, wherein the vehicle is provided so as to be adjustable.
Stool device. 3. The urging means is a compression type gas damper.
The gas damper according to the use position and storage position of the seat.
With locking means that can be locked in the telescopic position
The tip of the passive lever on each rotary shaft and above
It is operated respectively with the fixed fulcrum provided in the position,
When the seat reaches the use position, its rear part is received from above.
Either of claims 1 and 2, wherein a fixed stopper for stopping is provided separately.
The vehicle seating apparatus according to any one of the above. 4. Left and right axes of the seat and backrest respectively.
It has a vertical and hollow sleeve body that bears
Other required biasing means and locking means acted on the shaft
The device according to any one of claims 1 to 3, which is built in together with
The vehicle seating device described.