JPH0510258B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a container support device, and more particularly to a container support device that supports a container that is swingable relative to a fixed frame.

(Prior Art) One type of swingable container is a passenger luggage rack (gear tray) of an aircraft. This gearlay consists of a frame (gearley main body) fixed to the ceiling of the aircraft body, and a container (bottle) swingably attached to the gearlay main body. The bins are connected to the gearlay main body by a pair of parallel links, and are configured to swing and descend from the gearlay main body. Furthermore, a damper filled with oil is connected to one of the links and a stationary member. This damper is for preventing the bin from dropping suddenly when the bin is being pulled down.

(Problems to be Solved by the Invention) Conventional gearlays use oil dampers, so the life of the dampers is short due to oil leakage. Therefore, the oil damper is not durable and requires periodic replacement. Furthermore, measures against oil leakage must be taken on the gearray body or the oil damper, which increases the cost of the gearlay itself. Particularly in the case of aircraft, although there is a strong desire to reduce the weight of the aircraft, it is necessary to use relatively heavy oil dampers as mentioned above and increase the weight to prevent oil leakage. This is the current situation. Further, the oil damper cannot be made very long due to practical and cost considerations. Therefore, since a large load is applied to the damper connected near the fulcrum of the link on the gearlay main body side, the damper inevitably has a large capacity and its mass increases. The above-mentioned problems are related to aircraft gearlays, but for example, even with shelves similar to the above-mentioned gearlays that are installed in houses, the problem of oil leakage and the resulting short life of the damper remains.

(Means for Solving the Problems) The present invention solves the various problems described above and provides a container support device that does not leak oil, is small and lightweight, has a long life, and has a large degree of freedom in mounting position. For the purpose of a speed governor which is fixed to the frame and has a speed increasing gear train and speed regulating means on its output side, and one end of which is connected to a part of the container. a flexible elongated body; a pulley provided on the input side of the speed increasing gear train for winding the elongated body; and a spring means for biasing the pulley in a direction to wind up the elongated body. It is made up of.

(Operation) When the container is pulled down, the elongated body connected thereto is pulled out while rotating the pulley. As the pulley rotates, the spring means is loaded. When the pulley rotates, a speed regulating means is actuated via the multiplication wheel train to brake the rotation of the pulley and slow down the downward speed of the container. When the container is pushed up into the gearlay body, the elongated body is wound around the biased pulley.

(Example) Hereinafter, the present invention will be described in detail based on an illustrated example in which an aircraft gearlay is used as an example of the container.

In FIG. 1, the reference numeral G indicates a gearlay, which is provided to be movable relative to the gearlay body 60 as a frame fixed to the ceiling of the side of the aircraft, that is, to be able to come in and out. It consists of a bottle 61 as a container and a speed governor 1 fixedly installed on the back side of the upper surface of the gearlay main body 60. The gear train main body 60 and the bin 61 are connected to each other by a pair of links 62 and 63 arranged vertically. Base end 62a of link 62 located above
is pivotally connected to the gearlay main body by a fulcrum pin 64 fixed to the inner surface of one side wall 60a of the gearlay main body 60, and its free end 62b is fixed to the outer surface of one side wall 61a of the bin 61. It is pivotally connected to the bottle by a fulcrum pin 65. The base end 63a of the link 63 located below is pivotally connected to the gearlay body by a fulcrum pin 66 fixed to the inner surface of one side wall 60a of the gearlay body 60, and its free end 63b is connected to the bin 61. One side wall 61a of
It is pivotally connected to the bottle by a fulcrum pin 67 fixed on the outer surface of the bottle. Note that the links 62 and 63 are
It is also provided between the side walls of the other gearlay main body 60 and the bin 62, which are opposite to the side walls 60a, 61a. Further, the position when the bottle 61 swings to the lowest position (see FIG. 2) is regulated by a lock lever 69.

The other end 10b of the string 10 is connected to the fulcrum pin 65, which is pulled out from the pulley of the speed governor 1 and pulled in through a hole 60b formed in the gear relay body. The connection point of the string 10 to the bottle is not limited to the fulcrum pin 65. Details regarding the speed governor 1, pulley, and string 10 will be described later.

A lock lever 69 is supported on the lower edge of the link 62 by a shaft 68. lock lever 6
A roller 70 is pivotally attached to one end 69a of the roller 9. The other end 69b of the lock lever 69 and the link 62
A coil spring 71 is stretched between the lever 69 and the lever 69, giving the lever 69 a clockwise rotational habit as seen in FIG.

As shown in FIG. 2, a cam 71 is formed on the upper edge of the link 63, with which a roller 70 of the lock lever engages when the bin 61 is lowered.
The cam 71 collides with the roller 70 and locks the lever 6.
It consists of a cam part 71a for swinging the lock lever 9, and a cam part 71b for holding the position of the lock lever.

3 and 4, the speed governor 1 includes a pair of cases 2, 3 made of metal or synthetic resin that are fixed to each other, a worm shaft 4, a speed control member 5, and an increaser, which are housed in the cases. It consists of a speed wheel train 6, a pulley 7, a clutch means 8, a spring element 9, and a long body 10 wound around the pulley 7. Although the pulley 7 may be provided separately from the speed governor, in the illustrated embodiment it is housed within the case.

The worm shaft 4 is made of metal and has one end 4a.
The other end 4b is rotatably supported by a bearing part 3a formed in the case 3 and the other end 4b by a bearing part 11a formed in the peripheral wall member 11. A regulating member 5 made of an elastic material such as rubber or rubber-like material is press-fitted and inserted near the shaft end of the worm 4 . The speed regulating member 5 is a positioning member 1 that is press-fitted and fixed to the shaft 4.
2 and 13 to maintain the axial position. A peripheral wall 14 is formed in the peripheral wall member 11 at a position surrounding the speed regulating member 5 . The speed regulating member 5 is
As shown in FIG. 6, a boss portion 5a is press-fitted into the worm shaft 4, a pair of arm portions 5b extend radially from the boss portion, and one end of the arm portion is connected to the peripheral wall 14. It consists of weight portions 5c, 5c extending in an arc shape along. As shown in FIG. 7, both ends of the weight portions 5c, 5c serve as speed regulating members.
d may be connected to the boss portion 5a. The peripheral wall member 11 is supported by having its flange portion 11b engaged with holding grooves 2a and 3b formed in the cases 2 and 3. The illustrated embodiment includes:
Although the peripheral wall 14 is formed separately from the case, it may be formed integrally with either case. The worm shaft 4, the speed regulating member 5, and the peripheral wall 14 constitute a speed regulating means.

A worm gear 15 rotatably supported by the cases 2 and 3 is always meshed with the worm shaft 4. A small diameter gear 16 is integrally formed with the worm gear 15. A large diameter gear 8a of a planetary gear 8 constituting a clutch means is engaged with the small diameter gear 16. A small-diameter gear 8b is integrally formed with the planetary gear, and this small-diameter gear 8b is always meshed with the large-diameter tooth portion 17a of the intermediate gear 17. The intermediate gear 17 is rotatably supported at a fixed position by bearings 2b and 3c formed in the cases 2 and 3. The planetary gear 8 is rotatably supported in arc-shaped support holes 2c and 3d formed in the cases 2 and 3 about the central axis of rotation of the intermediate gear 17. The planetary gear 8 moves planetarily while remaining engaged with the large-diameter tooth portion 17a, and selectively engages and disengages from the small-diameter gear 16.

A pulley 7 is attached to the small diameter tooth portion 17b of the intermediate gear 17.
A gear 18 integrally formed on the outer peripheral edge of one flange 7a is always engaged. The gear train from the gear 18 to the worm gear 15 constitutes a speed increasing wheel train. In the illustrated embodiment, in the increasing gear train:
It includes a planetary gear 8 as a clutch means.
In other words, the planetary gear 8 serves both as a component of the speed increasing gear train and as a clutch means.

The pulley 7 has a circular hole 7b formed on one flange 7a slidingly contacted with a guide pin 19 provided on the case 3, and a boss portion 7d formed on the other flange 7c inserted into the support shaft 19 so as to be rotatable. By doing so, it is rotatably supported with respect to the cases 2 and 3. The guide bin 19 may be provided with rollers (not shown), and the pulley may be guided through the rollers.
The support shaft 19 has its base end 19a fitted into the case 2 so as not to rotate, and its other end fitted into the support hole 3d of the case 3. A spring means storage chamber 7e is formed in the pulley 7, and a spring means 9 is stored therein. The inner end 9a of the full length 9 is engaged with a bottle 20 that is firmly planted on a fixed support shaft 19. Outer end 9b of Zenmai 9
is locked to the full winding opening 7f of the pulley 7. Also. A string 10 as a long body is attached to the pulley 7.
is wrapped multiple times. One end 10a of the string 10
is locked to a string locking portion 7g formed on the pulley 7 and is integrated with the pulley. The other end of the string 10 is pulled out of the case through a hole 3e formed in the case, and is connected to a fulcrum pin 65 of a bottle 61 (see FIG. 1). A guide roller 22 supported by a relatively strong shaft 21 is arranged near the hole 3e and guides the string 10. Zenbu 9
is designed to be wound up when the string 10 is pulled in the direction of arrow a and the pulley 7 is rotated clockwise in FIG. Therefore, when the restraining force on the string 10 pulled out from the case is released, the pulley 7 rotates by the releasing force of the full length 9 and winds the string 10 around its circumferential surface. The gear train from the gear 18 to the worm gear 15 with the pulley 7 on the input side can be formed of a synthetic resin capable of withstanding the load of the bin 61 when baggage is stored.
The pulley 7, which has the full length 9 wound around it and the string 10 wrapped around it, is assembled into the case 2 before the intermediate gear 17 is assembled therein.

The operation of the embodiment configured as above will be explained.

As shown in FIG. 1, when the bin 61 is closed with respect to the gearlay main body 60, the string 10 is wound around the pulley 7 which is rotatably biased in the string winding direction by the full length 9. There is. The bottle 61 is placed in the closed position and is held in that position by a locking mechanism (not shown).

Now, when the locking action of the lock mechanism is released and the bin 31 is pulled down in order to take in and take out baggage, the bin 61 descends while swinging through the links 62 and 63 as well as swinging itself. link 62
When it swings downward, its one end 10b is attached to the fulcrum pin 65.
The string 10 that is locked is pulled out.

In FIG. 3, when the string 10 is pulled in the direction of the arrow a, the pulley 7 is rotated clockwise and the full force 9 is stored. The rotation of the pulley 7 causes the intermediate gear 17 to rotate counterclockwise via the gear 18. When the intermediate gear 17 rotates counterclockwise, the planetary gear 8, which is constantly meshed with the small diameter gear 8b, moves planetarily in the same direction as the gear 17, causing the large diameter gear 8a to mesh with the small diameter gear 16. The worm gear 15, which is integrated with the gear, is rotated counterclockwise.
At this time, the rotation of the pulley 7 is transmitted to the worm gear 15 at a greatly increased speed. The rotating worm gear 15 rotates the worm shaft 4 at high speed.

When the rotational speed of the worm shaft 4 increases, the weight portions 5c, 5c (see FIG. 6) of the regulating member 5 expand due to the elastic deformation of the arm portions 5b, 5b, and the outer circumferential surface of the weight portions 5c, 5c (see FIG. 6) expands, and the inner surface of the peripheral wall 14 is exposed on the outer circumferential surface thereof. The peripheral surface 14a is rubbed.
When the weight portion 5c rubs against the peripheral wall 14, the rotation of the worm shaft 4 is braked, and its rotational speed is reduced. When the rotational speed of the worm shaft 4 decreases, the weight portion 5c separates from the peripheral wall 14 and the braking is released, so that the worm shaft 4 rotates at a high speed again. Thereafter, the worm shaft 4 is maintained at a rotational speed within a predetermined range by repeatedly sliding and separating the regulating member 5 and the peripheral wall 14.

Now, when the rotational speed of the worm shaft 4 located on the output side of the gear train connected to the pulley 7 is maintained at a predetermined value, the pulley 7 is controlled and cannot rotate at a high speed. In other words, the string 10 that rotationally drives the pulley 7 cannot be pulled out at a high speed. Therefore, the bottle 61 connected to one end 10b of the string 10 will descend at a slow speed.

Although FIG. 2 shows the state in which the bin 61 has descended to the lowest position, the state immediately before this will be described. As the bin 61 descends, the links 62 and 63
also swings around their respective fulcrum pins 64 and 66. The rollers 70 of the lock lever 69 of the link 62, which swings more than the link 63, are connected to the cam portion 7.
1, the lever 69 is swung counterclockwise. When the bottle 61 swings to the lowest position, the roller 70 can change its contact position from the cam part 71a to the cam part 71b, and is stretched by the swing of the lock lever 69. The elasticity of the coil spring 71 brings it into pressure contact with the cam portion 71b. By the roller 70 coming into pressure contact with the cam portion 71b, the link 62,
63, that is, unnecessary vibration of the bottle 61, is prevented. In the case of aircraft, the vertical movement of the aircraft body during flight occurs relatively frequently, so the lock lever 6
9 is effective in preventing vibration of the bottle.

When loading and unloading of baggage is completed and the bin 61 is pushed up, the cam portion 71b pushes the roller and releases the lock between the links. And still bottle 6
When 1 is pushed up, the string 10 is released from its binding force.
The string begins to be wound up by the pulley 7, which is biased in the string winding direction by the stored elasticity of the Zenmai 9, and begins to rotate counterclockwise. When the pulley 7 rotates, the gear 18 integrated with it rotates, as shown in FIG.
Rotate 7 clockwise. When the intermediate gear 17 rotates clockwise, the planetary gear 8 is planetarily moved in the same direction as the intermediate gear 17 rotates, and the meshing between the large diameter gear 8a and the small diameter gear 16 is released. That is, since the planetary gear 8 functions as a clutch, the rotation of the gear train when winding up the string 10 is not transmitted to the worm gear 15. Therefore, since the speed governor 5 does not rotate, the speed governor function is lost.
Do not apply brakes to the gear train. Therefore, the pulley 7 can wind up the string 10 without being subjected to any braking. In other words, all of the accumulated power of Zenmai 9 will be spent on winding the string, and will assist in the operation of pushing up the bottle.

In the illustrated embodiment, the planetary gear 8 is shown as the clutch means provided in the speed-increasing gear train, but this means may also include a clutch means using a ratchet mechanism or a spring on any of the gears in the gear train. may be incorporated. In addition, the string 10 as a long body
The pulley 7 for winding up the engine may be provided separately from the speed governor and may be rotationally connected to the speed increasing gear train. Furthermore, as the speed regulating means, a well-known wind blowing method may be adopted instead of the elastically deformable speed regulating member 5. Furthermore, in the illustrated embodiment, the container is a passenger baggage rack (gear tray) of an aircraft, but the container can also be used as a luggage rack for railway cars or large sightseeing buses, or the gear rack for effectively utilizing dead space in ordinary homes or offices. Of course, it can also be applied to containers similar to the above.

(Effects of the Invention) As described above, according to the present invention, since no oil is used, the descending speed of the container can be controlled without worrying about oil leakage, and a container support device that is small, lightweight, and has a long life can be provided. Further, since the container and the governor can be connected using the elongated body wound around the pulley, the degree of freedom in connection is increased. By using a long body,
This makes it easy to apply to containers with large displacements.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional view showing an embodiment of the container support device with a governor according to the present invention, showing a bin on an aircraft baggage shelf in a closed state, and FIG. 2 shows a state in which the bin is opened. FIG. 3 is an example of a speed governor equipped with a pulley, and is a longitudinal sectional view showing a state in which the elongated body is pulled out and the spring element is stored;
FIG. 4 is a cross-sectional view of the same as the above, FIG. 5 is a partially cutaway side view showing the action of the clutch means when hoisting a long object, and FIG. 6 is a cross-sectional view showing an example of the speed regulating means.
FIG. 7 is a plan view showing another example of the speed regulating member. 1... Speed governor, 2, 3... Case, 4... Worm shaft, 5, 14... Speed governor means, 6... Speed increasing gear train, 7... Pulley, 8... Clutch means, 9... …
Spring means, 10... Long body, 60... Frame body, 61
...Container, 62,63...Link, 64,65,
66, 67... fulcrum.

Claims (1)

[Scope of Claims] 1. Each base end is connected to an upper and lower fulcrum provided on a fixed frame, and each is connected to an upper and lower fulcrum provided on a container movable relative to the frame. a pair of links whose free ends are connected; a speed governor that is fixed to the frame and has a speed increasing gear train and a speed governor on its output side; one end of which is connected to a part of the container; a pulley that is provided on the input side of the speed-increasing gear train and winds the elongated body; and a spring that urges the pulley in a direction to wind up the elongated body. A container support device comprising means.