JP3778748B2 - Box body opening and closing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in an opening / closing device for a box body whose opening / closing movement is controlled by an air damper, such as a grab box pivotally supported on a passenger panel of an automobile.
[0002]
[Prior art]
As this type of conventional switchgear, there is one shown in registered utility model No. 2557064.
Although not shown in detail, the conventional opening / closing apparatus pivotally supports a grab box on a passenger panel of an automobile and fixes an air damper to either the grab box or the passenger panel. It is the structure which fixes the front-end | tip part of the string connected to the piston of a damper to the other.
[0003]
Therefore, under the conventional switchgear, when the grab box is moved in the opening direction, it is guaranteed that the grab box slowly moves to the open state by the braking action of the air damper, and conversely, the grab box is closed. When moving in the direction, the closing action of the grab box is facilitated by the return action of the air damper.
[0004]
[Problems to be solved by the invention]
Therefore, in the conventional opening / closing device, it is possible to smoothly control the opening / closing movement of the grab box by the presence of the air damper, but on the other hand, the air damper itself is one of the grab box and the passenger panel. Since the tip of the string connected to the piston of the air damper is fixed to the other, the damper output could not be freely changed unless the air damper was replaced. For this reason, in particular, when an object that is heavier than the design value is stored in the grab box, there is a possibility that the grab box will open quickly due to insufficient damper output.
[0005]
[Means for Solving the Problems]
The present invention was developed in order to effectively solve the problems of such a conventional switchgear, and the invention according to claim 1 is configured to pivotally support the box body on the support structure side, In the box body opening and closing device that controls the opening and closing movement of the box body with an air damper, the air damper includes a cylinder that is fixed to the support structure side, and a piston that is connected to the base end of the string and moves within the cylinder. A coil spring for urging the piston in one direction, and the movable range of the piston in the cylinder is set to be wider than the rotation range of the box body relative to the support structure, while the string of the air damper The front end of the air damper is fixed to the box body side, and the cylinder of the air damper is inserted in the vicinity of the support structure and the shaft support of the box body so as to be movable along the longitudinal direction. And laterally disposed cylinder, by providing the air damper cylinder from the front side to be secured position changed to the fixed tube, and employs a configuration that changes the feeding of the cord length in the closed state of the box body in multiple stages.
[0006]
The invention according to claim 2 is based on claim 1 and is capable of changing the fixed position of the cylinder in the longitudinal direction by using the cylinder of the air damper as a support shaft for supporting the support structure and the box body. Adopted a configuration to move to.
[0007]
According to a third aspect of the present invention, there is provided a box body opening / closing device in which the box body is pivotally supported on the support structure side and the opening / closing movement of the box body is controlled by the air damper. A cylinder that is fixed to the body side, a piston that is connected to the base end of the string and moves in the cylinder, a coil spring that biases the piston in one direction, and a moving lever that protrudes from the outer peripheral surface of the cylinder The movable range of the piston in the cylinder is set to be wider than the rotation range of the box body relative to the support structure, and a fixed cylinder having a plurality of switching grooves is provided on the support structure side, The cylinder of the air damper is fixedly inserted into the fixed cylinder by movably inserting the cylinder of the air damper and selectively engaging the moving lever with the switching groove of the fixed cylinder. It adopted the configuration you want to change the.
[0010]
Therefore, in the invention described in claim 1, when storing a lightweight or heavy object in the box body in a relationship that changes the feeding length of the string in the closed state of the box body in multiple stages, By changing the feeding length, it is possible to ensure that the box body is slowly moved to the open state by obtaining a damper output corresponding to the weight, even when storing a light object or a heavy object. . In addition, in the method of changing the fixing position of the leading end of the string, since the leading end of the string is usually located on the back side, it is difficult to work, but the air damper is located relatively on the front side. The air damper itself can be moved more easily, and changing the fixed position of the cylinder changes the spring constant of the coil spring arranged in the cylinder, making it easier to output the required damper. Can get to. Furthermore, since the air damper is provided in the vicinity of the shaft support portion of the support structure and the box body via the fixed cylinder, the air damper is positioned on the front side, so that the changing operation becomes easier.
[0011]
In the invention according to the second aspect, since the air damper cylinder is also used as the support shaft for supporting the support structure and the box body, an independent space for fixing the air damper becomes unnecessary.
[0012]
In the invention according to claim 3, if the cylinder-side moving lever is selectively engaged with the switching groove on the fixed cylinder side, the moving lever can be engaged with any switching groove so that the fixed position of the cylinder can be changed. And if you change the fixing position of the cylinder appropriately, the spring constant of the coil spring arranged in the cylinder will change, and you can easily get the necessary damper output, so you can store light and heavy items in the box body At this time, it is possible to ensure that the box body is slowly moved to the open state with a damper output corresponding to the weight, even when a light object is stored or a heavy object is stored.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, if the present invention is described in detail based on each preferred embodiment, the opening / closing device according to the first embodiment is also intended for a grab box that is pivotally supported by a passenger panel of an automobile. Although it has been developed, it is characterized by the following configuration.
[0014]
That is, for the passenger panel P as a support structure, as shown in FIG. 1, a fixed cylinder 1 for inserting a cylinder 11 of an air damper 10 to be described later movably along the longitudinal direction is provided on one side of the lower end thereof. The fixed cylinder 1 has a slit 2 in a part thereof, and the first switching groove 3 </ b> A and the second switching groove 3 </ b> B are spaced apart from each other at a side edge of the slit 2. And a guide groove 4 for guiding a moving pin 5 of a grab box B, which will be described later, is formed in the side surface on the fixed cylinder 1 side.
[0015]
The grab box B, which is a box body, is pivotally supported on the passenger panel P side via a support shaft and a bearing portion (not shown), but moves to the side surface corresponding to the guide groove 4. A pin 5 is provided, and a distal end portion 13 a of a string 13 of an air damper 10 to be described later is fixed to the moving pin 5. In addition, the said fixed cylinder 1 shall be located in the shaft support part vicinity of this grab box B and the passenger panel P. As shown in FIG.
[0016]
Further, as shown in FIG. 2, the air damper 10 moves in the cylinder 11 by connecting the cylinder 11 movably inserted into the fixed cylinder 1 on the passenger panel P side and the base end of the string 13. A piston 12, a guide cap 14 that guides the movement of the string 13 on one end opening side of the cylinder 11, an end cap 17 with a valve 16 that opens and closes a communication hole 15 formed in the other end opening of the cylinder 11; The cylinder 11 is provided with a compression coil spring 18 interposed between the guide cap 14 and the piston 12 in the cylinder 11, and the leading end 13a of the string 13 is pulled out from the guide cap 14 and passes through the passenger panel P side. It will be fixed to the moving pin 5 on the grab box B side through the section, but in the first embodiment, The outer peripheral surface of the over 11 are configured to protrude a first switching groove 3A and moving the lever 19 to switch engagement Second switching groove 3B while fitted into the slits 2 of the fixed tube 1. Further, the movable range of the piston 12 in the cylinder 11 is set to be wider than the rotation range of the grab box B relative to the passenger panel P.
[0017]
Therefore, when the cylinder 11 of the air damper 10 is inserted into the fixed cylinder 1 provided on the passenger panel P and the moving lever 19 of the cylinder 11 is engaged with the first switching groove 3A via the slit 2, FIG. As shown, the piston 12 is pushed into a normal position by the spring pressure of the compression coil spring 18 and the compression coil spring 18 is not compressed unnecessarily, so that a damper output as designed is obtained. When the movement of the cylinder 11 in the fixed cylinder 1 is obtained and the moving lever 19 is switched and engaged from the first switching groove 3A to the second switching groove 3B, the compression coil spring 18 is now moved as shown in FIG. Since the initial load is increased due to the compression and the change in the spring constant, the movement resistance of the piston 12 is increased, and at the same time, the damper output is increased accordingly. That is, the change in the damper output is because the feeding length of the string 13 in the closed state of the grab box B changes stepwise by changing the fixing position of the cylinder 11 with respect to the passenger panel P.
[0018]
Therefore, in a case where the grab box is used for normal use as designed under the opening / closing device having such a configuration, the moving lever 19 of the cylinder 11 is engaged with the first switching groove 3A of the fixed cylinder 1. If the cylinder 11 is moved and fixed in place, then the grab box B is moved in the opening direction, and then the string 13 is gradually pulled out of the cylinder 11, and the piston 12 is connected to the compression coil spring 18. Since it moves in the same direction against the spring pressure, a normal damper output is obtained with the flow resistance of the air passing through the orifice (not shown) provided on the piston 12 side, and FIG. As shown, it is guaranteed that the grab box B slowly moves into the open state.
[0019]
Also, when storing an object that is heavier than the design value in the grab box B and using it as usual, the damper output will be insufficient and the grab box B will open quickly. If the cylinder 11 is moved to the state in which the moving lever 19 of the cylinder 11 is engaged with the second switching groove 3B of the fixed cylinder 1 and fixed in place, the change in the spring constant due to the compression of the compression coil spring 18 Since the initial load increases and the movement resistance of the piston increases, the grab box B slowly moves to the open state as usual even when a heavy object is stored. It is guaranteed.
[0020]
Therefore, under the first embodiment, the fixed cylinder 1 is actively used and the fixing position of the cylinder 11 of the air damper 10 is changed according to the will of the user, so that the grab box B is closed. Since the dumping length of the string 13 is changed in two stages and a damper output corresponding to the weight of the contents of the grab box B is obtained, the usability is improved. In the first embodiment, the two switching grooves 3A and 3B are formed on the fixed cylinder 1, but more are formed to extend the feeding length of the string 13 in multiple stages. It is optional depending on the implementation.
[0021]
Further, instead of changing the fixing position of the cylinder 11 of the air damper 10, it is conceivable to change the fixing position of the tip 13 a of the string 13. Normally, however, the tip 13 a of the string 13 is the passenger panel P. However, it is difficult to change the position of the cylinder 11 with respect to the fixed cylinder 1 provided at the lower end of the passenger panel P as in the first embodiment. Work becomes much easier. Moreover, since the fixed cylinder 1 itself is provided in the vicinity of the shaft support portion of the passenger panel P and the grab box B as described above, it is not conspicuous, but it is located on the front side, so that the cylinder 11 Changing the fixed position is easier.
[0022]
On the other hand, when the grab box B is moved in the closing direction, the piston 12 is now connected to the cylinder 11 by the spring pressure of the compression coil spring 18 with the string 13 regardless of whether the grab box B is used normally or in a case where a heavy object is stored. The air that is forced back into the cylinder 11 and escapes from the end cap 17 through the communication hole 15 opened by the valve 16 to the outside, so that the piston 12 moves quickly through the cylinder 11. Thus, as shown in FIG. 6, the closing operation of the grab box B is facilitated.
[0023]
Further, in the first embodiment described above, the cylinder 11 of the air damper 10 is supported so as to be movable to the fixed cylinder 1 side. However, as shown in FIGS. If the cylinder 11 of the air damper 10 is also used instead of the support shaft for connecting the bearings 20 and 21 of the box B, the fixing position of the cylinder 11 can be similarly changed in multiple stages. Since the space for fixing the independent air damper 10 is not necessary, it goes without saying that it is extremely rational, but the change work is also facilitated. In the second embodiment, the slit 2 and the switching grooves 3A and 3B are formed in the bearing portion 20 on the passenger panel P side.
[0024]
Therefore, even in the second embodiment, when the grab box is used for normal use as designed, the moving lever 19 of the cylinder 11 is engaged with the first switching groove 3A formed in the bearing portion 20. If the cylinder 11 is moved to a matching state and fixed in place, then, when the grab box B is moved in the opening direction, the string 13 is gradually pulled out of the cylinder 11 and the piston 12 is compressed into the compression coil. Since it moves in the same direction against the spring pressure of the spring 18, a normal damper output is obtained by the flow resistance of the air passing through the orifice provided on the piston 12 side, and the grab box B slowly It will be guaranteed to move to the open state.
[0025]
Further, when an object that is heavier than the design value is stored in the grab box B for use, this time, until the movable lever 19 of the cylinder 11 is engaged with the second switching groove 3B of the bearing portion 20. If the cylinder 11 is moved and fixed in place, the initial load increases due to the change in the spring constant caused by the compression of the compression coil spring 18 and the movement resistance of the piston increases. Even when an object is stored, it is guaranteed that the grab box B slowly moves to the open state as in the normal case.
[0026]
【The invention's effect】
As described above, according to the present invention, by adopting the above-described configuration, under the first aspect, a lightweight or heavy object is attached to the box body in a relationship that changes the feeding length of the string in the closed state of the box body in multiple stages. When storing, by changing the feeding length of the string, it is possible to obtain a damper output according to the weight, even when storing lightweight items or storing heavy items, and slowly open the box body. Can be ensured to move to. In addition, in the method of changing the fixing position of the leading end of the string, since the leading end of the string is usually located on the back side, it is difficult to work, but the air damper is located relatively on the front side. The air damper itself can be moved more easily, and changing the fixed position of the cylinder changes the spring constant of the coil spring arranged in the cylinder, making it easier to output the required damper. Can get to. Furthermore, since the air damper is provided in the vicinity of the shaft support portion of the support structure and the box body via the fixed cylinder, the air damper is positioned on the front side, so that the changing operation becomes easier.
[0027]
Under the second aspect of the present invention, the air damper cylinder is also used as a support shaft for supporting the support structure and the box body, so that an independent space for fixing the air damper is not required.
[0028]
Under the third aspect, if the cylinder-side moving lever is selectively engaged with the switching groove on the fixed cylinder side, the moving lever is engaged with any switching groove so that the cylinder fixing position can be changed. If the fixed position of the is changed appropriately, the spring constant of the coil spring arranged in the cylinder will change and the required damper output will be easily obtained, so it is lightweight when storing lightweight items or heavy items in the box body Whether storing an object or a heavy object, it is possible to ensure that the box body is slowly moved to an open state with a damper output corresponding to the weight.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a switchgear according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a structure of an air damper.
FIG. 3 is an explanatory view showing a state in which the cylinder of the air damper is moved and fixed to the first switching groove side of the fixed cylinder.
FIG. 4 is an explanatory view showing a state where the cylinder of the air damper is moved and fixed to the second switching groove side of the fixed cylinder.
FIG. 5 is a main part explanatory view showing an open state of the grab box;
FIG. 6 is a main part explanatory view showing a closed state of a grab box.
FIG. 7 is an exploded perspective view showing the switchgear according to the second embodiment.
FIG. 8 is a perspective view showing the assembled state.
FIG. 9 is an explanatory view showing a state in which the cylinder of the air damper is moved and fixed to the first switching groove side of the bearing portion.
[Explanation of symbols]
P Passenger panel (support structure)
B Grab box (box body)
DESCRIPTION OF SYMBOLS 1 Fixed cylinder 2 Slit 3A 1st switching groove 3B 2nd switching groove 4 Guide groove 5 Moving pin 10 Air damper 11 Cylinder 12 Piston 13 String 13a String tip 14 Guide cap 15 Communication hole 16 Valve 17 End cap 18 Compression coil spring 19 Moving lever 20 Bearing portion on the passenger panel 21 Bearing portion on the grab box side

Claims (3)

  In a box body opening and closing device that pivotally supports the box body on the support structure side and controls the opening and closing movement of the box body with an air damper, the air damper includes a cylinder fixed to the support structure side, A piston that is connected to the base end of the string and moves in the cylinder, and a coil spring that urges the piston in one direction, and the movable range of the piston in the cylinder is controlled with respect to the support structure of the box body. Set the tip of the air damper string to the box body side, and set the cylinder of the air damper along the longitudinal direction in the vicinity of the support structure and the shaft support of the box body. By placing a fixed cylinder to be movably inserted in the horizontal direction and providing the fixed cylinder so that the fixed position of the cylinder of the air damper can be changed from the front side. Switchgear box body, characterized in that changing the feeding length of the cord in multiple stages in the closed state of the.   2. The box body according to claim 1, wherein a cylinder of an air damper is also used as a support shaft for pivotally supporting the support structure and the box body, and the cylinder is moved so that the fixed position can be changed in the longitudinal direction. Switchgear.   In a box body opening and closing device that pivotally supports the box body on the support structure side and controls the opening and closing movement of the box body with an air damper, the air damper includes a cylinder fixed to the support structure side, A piston that is connected to the base end of the string and moves in the cylinder; a coil spring that biases the piston in one direction; and a moving lever that protrudes from the outer peripheral surface of the cylinder. The movable range of the box body is set to be wider than the rotation range of the box body relative to the support structure, and a fixed cylinder having a plurality of switching grooves is provided on the support structure side, and a cylinder of an air damper is provided in the fixed cylinder. Is inserted movably, and the fixed position of the cylinder of the air damper is changed by selectively engaging the moving lever with the switching groove of the fixed cylinder. Switchgear box body.

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