JPH0558996U - Structure of the damper of the glove box lid - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a structure of a damper of a glove box lid which can effectively solve the problems of the conventional damper. In a structure of a damper of a glove box lid in which a center of gravity of a lid of the glove box is set in a vehicle front direction with respect to a hinge center position of the lid in a closed state, the damper of the damper is A spring is arranged between the piston and the cylinder-rear wall, and the lid is moved in the opening direction by the biasing force of the spring at the initial stage of the opening operation of the lid, and the center of gravity of the lid is located at the hinge center position of the lid. It is characterized in that the biasing force of the spring is set so that the biasing force of the spring becomes zero near the time when the spring is moved rearward of the vehicle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a damper of a glove box lid arranged on an instrument panel of a vehicle.

[0002]

[Prior Art]

 The glove box lid is often provided with a damper device that provides a cushioning function in order to prevent the lid from opening abruptly or generating an unpleasant impact sound. As a damper for such a glove box lid, the one disclosed in Japanese Utility Model Laid-Open No. 64-734 and Japanese Patent Laid-Open No. 64-53652 previously filed by the applicant of the present application, or JP-A No. 59-205007, and the like.

[0003]

[Problems to be solved by the device]

 However, depending on the position of the center of gravity of the glove box lid when the lid is closed, the lid may not be opened due to its own weight merely by unlocking the lid. That is, as shown in FIG. 9, when the center of gravity G of the lid 30 of the globe box in the closed state is set in the vehicle front direction by the X dimension from the hinge center position C of the lid 30, Even if the lid 30 (not shown) is unlocked, the lid 30 is kept in the closed state as it is because a momentum in the closing direction (clockwise direction in the figure) acts on the lid 30 due to its own weight. ..

Therefore, in this case, the lid 30 must be pulled in the opening direction. At this time, when the damper is not attached, the lid 30 can be opened with a small force, but when the damper 31 is installed as shown in the drawing, the lid 31 tries to open it. Since a resistance force is generated against the force, the operability is deteriorated, and even if the damper 31 is installed, there is a problem in that the luxury feel is impaired.

Further, in the damper disclosed in the above-mentioned Japanese Patent Laid-Open No. 59-205007, the spring stored therein is projected, but in this example, the spring is effective from the fully closed state to the fully opened state. Therefore, there is a problem that the damper mechanism does not work smoothly. Therefore, in addition to the damper, a separate ejecting device must be provided, which increases the number of components and complicates the device. Therefore, an object of the present invention is to provide a structure of a damper of a glove box lid that can effectively solve the problems of the conventional damper.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, the position of the center of gravity of the lid of the glove box in the closed state is set in the vehicle front direction with respect to the hinge center position of the lid. In the structure of the damper, a spring is arranged between the piston of the damper and the rear wall of the cylinder, and the lid is moved in the opening direction by the urging force of the spring at the beginning of the opening operation of the lid, and the lid is opened. The biasing force of the spring is set so that the biasing force of the spring becomes zero near the time when the center of gravity of the lid moves toward the vehicle rear side from the hinge center position of the lid. To do.

The damper is an air damper including a piston operating portion, a damper portion, and an air filter portion. In the piston operating portion, an O-ring is provided in the cylinder. A piston that is slidably in contact with the inner wall surface of the cylinder is disposed through the cylinder, and one end of the cylinder has a sliding port through which a piston rod connected to the piston can freely slide. A front wall is formed, and at the other end, a rear wall having an air passage hole formed in the center is formed, and a first space portion is defined in the cylinder by the piston and the rear wall. The spring is arranged in the first space portion, and the damper portion is integrally formed as a cylindrical member on the outer side portion of the rear wall. The valve is installed in such a way that it blocks the flow hole. An orifice is bored in the center of the valve to connect the first space portion and the third space portion inside the tubular portion through a flow hole, and the valve is formed by a back-up member. The air filter part is pressed against the flow hole, and the air filter part is composed of a retainer fixed to the outermost periphery of the damper part and a step part formed in the damper part. It is desirable that the air filter consisting of is sandwiched and fixed.

[0008]

【Example】

 Hereinafter, a preferred embodiment of the damper according to the present invention will be described in detail with reference to the drawings. In this embodiment, as shown in FIG. 1, the glove box lid 30 is arranged on the instrument panel 32 of the vehicle, and like the above-mentioned conventional example, the glove box lid 30 is in the closed state. It is assumed that the position G of the center of gravity of the lid 30 is set in the front direction of the vehicle by the X dimension from the position C of the hinge center of the lid 30.

The damper-1 according to the present embodiment is arranged in the instrument panel 32 at one end position of the lid 30 of the glove box, and has a piston operating portion, a damper portion, and an air filter portion. Consists of. As shown in FIG. 2 and FIG. 3, in the piston operating portion, a piston 3 which is inscribed in the cylinder-2 and is slidably operated by being inscribed in the inner wall surface of the cylinder-2 through an O-ring 18 is provided. It is arranged.

A front wall (not shown) having a sliding port through which the piston rod 4 connected to the piston 3 can freely slide is formed at one end of the cylinder-2. At the other end of the cylinder-2, a rear wall 7 having a through hole 8 for air is formed in the central portion, and the piston 3 and the rear wall 7 form the first space 9 in the cylinder-2. Is defined.

A spring 40 is arranged in the first space 9. In the present embodiment, one end of the spring 40 is formed on the piston 3 at the closed position of the globe box lid 30 shown in FIG. It is fitted and fixed to the spring mounting boss 41, and the other end thereof is simply in contact with the cylinder-rear wall 7.

Therefore, in the initial stage of the opening operation of the groove sox lid 30, the lid 30 is moved in the opening direction by the biasing force of the spring 40, and the center of gravity position G of the lid 30 is set to the hinge center of the lid 30. The urging force of the spring 40 is set so that the urging force of the spring 40 becomes zero immediately after moving to the vehicle rear side from the position C.

A second space 10 is formed between the piston 3 and the front wall. The damper portion is integrally formed as a cylindrical member on the outer portion of the rear wall 7, and a valve 13 is arranged inside the tubular portion so as to close the flow hole 8. An orifice 14 is bored in the center of the valve 13 to connect the first space 9 and the third space 11 inside the cylinder through a flow hole 8. The valve 13 is elastically pressed against the flow hole 8 by a spring 12 as a backup material.

The air filter portion is composed of a retainer 16 fixed to the outermost periphery of the damper portion, and a step portion formed in the damper portion. The air filter portion 15 is made of a porous resin plate. Is sandwiched and fixed. Therefore, by fixing the retainer 16, both the valve 13 and the air filter 15 in the third space 11 are pressed and fixed by the spring 12. Further, the retainer 16 has a hole 17 formed therein. The air filter-15 is formed of a porous resin material having a large number of small pores in the form of bubbles, and for example, a tetrafluoroethylene resin material is suitable. The air filter 15 circulates air while giving a predetermined resistance through a large number of small holes, finely adjusts the flow amount, and has a predetermined sound absorbing performance due to the action of a large number of small air holes. ..

In the present embodiment having such a configuration, when the glove box lid 30 is in the closed state and the push button type or pull handle type lid 30 (not shown) is unlocked, the opening operation is performed. In the initial stage of, the piston 3 is forcibly moved from the closed position shown in FIG. 3 toward the opening direction (right direction in the figure) of the glove box lid 30 by the urging force of the spring 40. Then, the globe box lid 30 starts to open.

However, during the opening operation of the globe box lid 30 as described above, when the center of gravity position G of the lid 30 moves toward the vehicle rear side from the hinge center position C of the lid 30, the spring is released. Since the urging force of the spring 40 is set so that the urging force of 40 becomes zero, the spring 40 is fully extended at this point as shown in FIG. At this stage, the rotary movement of the groove box lid 30 in the opening direction has begun to work due to its own weight, and hence the lid 30 receives the normal cushioning action of the orifice 14 of the damper-1 thereafter, The piston 3 smoothly opens in the opening direction, and as shown in FIG. 5, the piston 3 moves to the open position together with the spring 40.

In the closing operation, the piston 3 moves in the opposite direction to the above, and the spring 40 is locked in the closed state shown in FIG. 3 with the original biasing force restored. ..

Next, FIGS. 6 to 8 explain the operation of the damper-1. First, when the piston 3 moves in the opening direction as shown in FIG. Becomes a negative pressure, and the air whose flow rate has been finely adjusted by passing through the small holes of the air filter-15 further passes through the orifice 14 to buffer the movement of the piston 3 in two steps. In addition, by appropriately setting the size of the small holes of the air filter-15, it is possible to easily finely adjust the cushioning action. Therefore, the piston 3 is buffered, and the lid 30 gradually and smoothly moves in the opening direction.

On the other hand, when the piston 3 moves in the closing direction, as shown in FIG. 7, the damper 1 compresses the air in the first space 9 by the pressing force of the piston 3 into the cylinder 2. The pressure causes the pressure to pass through the flow hole 8 and further to pass through the orifice 14 of the valve 13. However, since the orifice 14 is a small hole, air cannot pass freely, and therefore the valve 13 is moved in a direction in which the air can flow against the spring pressure. Then, the air in the first space portion 9 is discharged to the outside through the air filter-15 due to the above state, and the pressures in the first space portion 9 and the third space portion 11 are almost the same. Then, due to the spring pressure, the valve 13 again comes into contact with the surface of the rear wall 7 as shown in FIG. .

Since the air filter 15 is arranged in the damper 1 via the spring 12, the valve 13 moves as shown in FIG. 7, and the air flows into the third space 11. In this case, since the air is controlled by the air filter-15, it is not instantaneously discharged to the outside, and the air pressure between the first space 9 and the third space 11 is short-term. Almost the same, and then the air is gradually discharged. Therefore, since the valve 13 returns slowly, there is no collision with the rear wall 7 and no abnormal noise is generated. That is, since the air filter-15 has a large number of fine small holes, it is possible to control the rapid release of air to the outside. In addition, even if abnormal noise should occur, each small hole of the air filter 15 acts as a sound absorbing material, so that the abnormal noise can be effectively blocked from propagating to the outside.

Although the spring 40 is fixed to the piston 3 side in the above embodiment, the present invention is not limited to this and may be fixed to the cylinder-rear wall 7 side. Further, as the backup material 12, a hard resin washer or the like can be used instead of the above spring, and it is needless to say that various modifications can be made without departing from the scope of the present invention. ..

[0022]

[Effect of the device]

 As described above, according to the damper of the present invention, the following effects can be obtained. (1) Even in the glove box lid under the condition that the rotating moment due to its own weight is acting in the closed state in the closed state, the lid can be surely opened by the action of the spring just by releasing the lock. (2) Until the rotational momentum in the opening direction due to its own weight becomes large to some extent, the lid opens by the action of the spring, and after that, the lid opens under its own weight under the ordinary cushioning action. It can be stable. (3) Setting is simple and the number of components is small because it can be handled by simply installing a spring in the damper.

[Brief description of drawings]

FIG. 1 is an explanatory view of the layout of a globe sox lid according to an embodiment of the present invention.

FIG. 2 is a partially cutaway explanatory view of a damper according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a configuration of a damper in a closed state of the globe box lid.

FIG. 4 is an explanatory view showing the action of the damper during the opening operation of the globe box lid.

FIG. 5 is an explanatory view showing the action of the damper in the open state of the glove box lid.

FIG. 6 is an explanatory view showing the action of the damper.

FIG. 7 is an explanatory view showing the action of the damper.

FIG. 8 is an explanatory view showing the action of the damper.

FIG. 9 is an explanatory diagram showing arrangement conditions for the globe box lid.

[Explanation of symbols]

 Center position of G lid Hinge center position of C lid 1 Damper 2 Cylinder 3 Piston 4 Piston rod 7 Cylinder rear wall 8 Circulation hole 9 First space part, 11 Third space part, 12 Spring (backup material) 13 Valve 14 Orifice 15 Air filter-30 Globe box lid 40 Spring 41 Spring mounting boss

Claims (2)

[Scope of utility model registration request] 1. A structure of a damper for a glove box lid, wherein a center of gravity of a lid of the glove box in a closed state is set in a vehicle front direction with respect to a hinge center position of the lid. -A piston and a cylinder-a spring is arranged between the rear wall, and the lid is moved in the opening direction by the urging force of the spring in the initial stage of the opening operation of the lid, and the center of gravity of the lid is located at the hinge center of the lid. The structure of the damper of the glove box lid, characterized in that the biasing force of the spring is set so that the biasing force of the spring becomes zero near the time when the spring is moved toward the vehicle rear side from the position. . 2. The damper is an air damper comprising a piston operating portion, a damper portion, and an air filter portion. In the piston operating portion, an O ring is inserted into the cylinder. A piston which is inscribed in the inner wall surface of the cylinder and is slidably operated is provided, and at one end of the cylinder, there is a front wall having a sliding port through which a piston rod connected to the piston can freely slide. Formed, on the other end,
A rear wall is formed in the center of the cylinder, and a first space is defined by the piston and the rear wall in the cylinder. The spring is arranged in the first space. The damper portion is integrally formed as a cylindrical member on the outer side portion of the rear wall, and a valve is disposed inside the tubular portion so as to close the flow hole. An orifice is bored in the center of the valve to connect the first space portion and the third space portion inside the tubular portion through a flow hole, and the valve uses a backup material for the flow hole. The air filter part is pressed against the retainer fixed to the outermost periphery of the damper part.
The damper of the glove box lid according to claim 1, wherein an air filter made of a porous resin plate is sandwiched and fixed between the core and the step portion formed in the damper portion.
Structure.