JPH0616091A - Housing device with safety function for automobile - Google Patents

Abstract

PURPOSE:To prevent the rotation of a cam member to the lock releasing direction securely and to increase the reliability by making a pin member about to the outer edge of a stopper guide wall of the cam member. CONSTITUTION:While a lock member 4 and a leading-out port 5 are formed at one edge side of a cam member 1 where a cam groove 2 is partitioned, a stopper guide wall 6 projecting between the lock member 4 and the leading-out port 5 is formed integrally at the other edge side opposite to the one side. Then, the lock member 4 to lock a pin member P is positioned at the outer side from the stopper guide wall 6, and when a large inertial force operates, the pin member P is abutted to the outer side edge 6a of the stopper guide wall 6. As a result, a housing box B is prevented from projecting from the inside of a housing H to the outer side in error. In such a way, the safety function can be exercised without using an independent exclusive part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called push-open type storage device provided on an instrument panel of an automobile, and more particularly to an improvement of a storage device with a safety function.

[0002]

2. Description of the Related Art In a conventional push-open type storage device of this type, a storage box is supported in a housing provided on the instrument panel side so that the storage box can be opened and closed, and the storage box is always opened by a biasing spring pressure. While urging, on the housing side,
A cam member having a cam groove having an inlet, a lock portion, and an outlet is pivotably provided, and a pin member that moves in the cam groove of the cam member is provided on the storage box side. When the storage box is locked in the housing, it can be locked in the closed position inside the housing against the biasing spring pressure. If the storage box is pushed further into the housing in this state, the cam groove of the pin member Release the lock on the lock part of
The storage box can be automatically moved in the opening direction from the opening of the housing.

As shown in FIGS. 11 and 12, the cam member 21 used in this conventional apparatus is provided on the mounting shaft portion 27 on the housing side so as to be rotatable via a torsion spring 28, and the regulating wall portion is provided. Until the regulation of 29,
The torsion spring 28 is always urged in one predetermined direction by the spring pressure, but its specific form is that the lock portion 24 and the outlet 25 are provided on one edge side that defines the cam groove 22 of itself. Is formed to be extremely close to each other, while the guide wall 26 of the pin member P is integrally formed on the other edge side facing the one edge. However, such a conventional cam member 21 is only the inner edge 2 of the guide wall 26.
Since it was developed only by guiding the pin member P in the direction of the outlet port 25 by the action of 6a, as shown in the drawing, the tip portion of the guide wall 26 is locked by the lock portion 24.
With respect to the outside, in other words, the cam groove 22 is formed so as to project toward the introduction port 23, and the lock portion 24 that locks the pin member P is positioned inside the tip of the guide wall 26. There is.

Therefore, when the storage box is pushed into the housing, the pin member P provided on the rear end side of the storage box.
Contact the outer peripheral guide surface 21a of the cam member 21, and while rotating the cam member 21 in the direction opposite to the biasing direction of the torsion spring 28, reach the introduction port 23 of the cam groove 22 and guide the cam member 21. When it abuts the wall 26,
This time, the cam member 21 pivots slightly in the biasing direction by the spring pressure of the torsion spring 28, so that the pin member P is guided into the cam groove 22. At this time, the storage box is also biased by the biasing spring pressure. As it moves backward, as shown in FIG. 11, the pin member P automatically engages with the lock portion 24 located inside the cam groove 22, and the storage box resists its biasing spring pressure. Securely lock in the closed position in the housing.
Further, if the storage box is further pushed into the housing in this state, the pin member P is disengaged from the lock portion 24 of the cam groove 22 as shown in FIG.
6a and allows the cam member 21 to further pivot in the urging direction (lock releasing direction). After that, if the pushing operation to the storage box is released, the pin member P is pulled out from the outlet 25 of the cam groove 22. While being guided in the direction, the cam member 2
Since it automatically comes off from the cam groove 22 of 1,
The storage box can be automatically moved in the opening direction from the opening of the housing by the biasing spring pressure.

However, when a large inertial force is applied to the storage box when the vehicle is in a collision or when the vehicle is suddenly braked in a locked state where the storage box in which the pin member P is locked to the lock portion 24 is in the closed position, the storage box is opened. Although it will move in the same direction as the direction of the inertial force, at this time, in conjunction with this, the pin member P is disengaged from the lock portion 24 located inward, as in the opening operation shown in FIG. Since the cam member 21 is allowed to turn in the unlocking direction, the storage box is erroneously moved in the opening direction from the opening of the housing by the biasing spring pressure, so that the driver and the passenger May be harmed. For this reason, in recent years, in order to prevent the occurrence of such a situation, in particular, a push-open type storage device has been forced to have a safety function.

Therefore, as this storage device with a safety function, for example, the one shown in Japanese Utility Model Laid-Open No. 25332/1990 is provided. Although not specifically shown, the storage device with safety function has a guide piece integrally extended to the rear end side of the cam member having the same configuration as the conventional cam member 21 described above, and the weight of the guide piece is increased. A lock for disposing an inertial response body slidably and pulling the inertial response body toward the rear end portion of the cam member with a tension spring, while allowing the end portion of the inertial response body to project into a corresponding portion of the housing. The configuration is such that a cylindrical body is provided. Therefore, when the device is used for normal use, it is similar to the conventional push-open type storage device, but when the storage box is in the locked position in the closed position, in the case of a collision of a car or an emergency. When a large inertial force acts during braking or the like, the end of the inertial response body arranged on the guide piece of the cam member moves and thrusts into the lock cylinder against the traction force of the tension spring, and This prevents the storage box from turning in the unlocking direction, which prevents the storage box from accidentally protruding outward from the opening of the housing.

[0007]

However, such a conventional storage device with a safety function not only requires an additional inertial response body separate from the cam member, but also has a rear end portion of the cam member. On the side, a guide piece is integrally extended, the inertia response body is arranged on the guide piece by applying a pulling force of a tension spring, and a lock cylinder body that allows the end portion of the inertia response body to project is provided in the housing. Since it has to be formed separately on the side,
Not only does the storage device itself increase in cost, become more complicated and larger, but also the number of parts increases, and the number of assembling steps also increases, and the assembling workability also deteriorates. I had a problem. When the lock release stroke of the storage box is short, the cam member turns in the lock release direction before the inertia response body moves on the guide piece.
I couldn't deny that the storage box accidentally protruded to the outside, so there was a dislike of lack of reliability. Therefore, the present invention is
It is developed in order to effectively solve the problems of the conventional storage device with a safety function.

[0008]

To achieve the above object, according to the present invention, a housing is supported in a housing such that the housing can be opened and closed, and the housing is always biased by a biasing spring pressure in an opening direction. On the other hand, on the housing side, a cam member having a cam groove having an inlet, a lock portion, and an outlet is formed so as to be rotatable, and a pin member that moves in the cam groove of the cam member is provided on the storage box side. By locking the pin member to the lock portion of the cam groove, the storage box is locked in the closed position in the housing against the biasing spring pressure, and in this state, the storage box is further pushed into the housing. As a result, assuming that the cam member is unlocked from the lock portion of the cam groove of the pin member and the storage box is automatically moved in the opening direction from the opening portion of the housing, the cam member is , Define your own cam groove To one edge, while forming the locking portion and the outlet port at a distance, the other edge side opposite to the said one edge,
The stopper guide wall protruding between the lock portion and the outlet is integrally formed, and the lock portion for locking the pin member is located outside the stopper guide wall. Further, under such a configuration, when the cam member swivels in the direction in which the pin member is removed from the introduction side of the cam groove, a regulation wall portion that regulates the swiveling amount of the cam member is provided on the housing side, or It is preferable to provide a balance adjusting portion on the cam member side for matching the center of gravity of the cam member with the turning center.

[0009]

Therefore, even in the present invention, when the storage box is pushed into the housing for normal use, the cam provided with the pin member provided on the storage box side is provided on the housing side. The storage box can be securely locked in the closed position in the housing against the biasing spring pressure by locking it in the lock part of the cam groove of the member. In this state, the storage box can be pushed further into the housing. For example, regardless of the presence of the stopper guide wall, the pin member is disengaged from the lock portion of the cam groove to allow the cam member to swivel in the unlocking direction. It is possible to automatically move in the opening direction from the opening.

However, when a large inertial force acts in a locked state of the storage box when the vehicle is in a closed position, such as when the vehicle collides or when the vehicle is suddenly braked, the storage box normally functions as a pin member even in the present invention. Although they move together in the same direction as the inertial force, the lock part that locks the pin member is located outside the stopper guide wall. The outer edge of the cam groove is reliably prevented from moving in the direction of the outlet of the cam groove, and as a result, the cam member cannot pivot in the unlocking direction, and the storage box is placed inside the housing. Stays in the closed position, and there is no fear of accidentally protruding outward from the inside of the housing. Further, in this case, if a regulation wall portion is provided on the housing side or a balance adjustment portion is provided on the cam member side, for example, an inertial force larger than expected or an oblique inertial force acts. Even so, it can be guaranteed that a reliable safety function is exerted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to each illustrated embodiment. First, an automobile storage device with a safety function according to the first embodiment will be described. The first embodiment is also not specifically shown, but is similar to the conventional push-open type described above. , Support the storage box in the housing provided on the instrument panel side so that it can be opened and closed,
While constantly biasing the storage box in the opening direction with a biasing spring pressure,
If the cam member is pivotally provided on the housing side and the pin member is provided on the storage box side and the pin member is locked to the cam member, the storage box is placed in the closed position in the housing against the biasing spring pressure. If the storage box can be securely locked and is pushed further into the housing in this state, the locking of the pin member with respect to the cam member is released and the cam member is allowed to swivel in the unlocking direction. It is premised on a configuration in which the spring is automatically moved in the opening direction from the opening of the housing by the biasing spring pressure.

However, in the first embodiment, as in the conventional case, the inertia function body and its accessory parts which are formed separately from the cam member are not used to exert the safety function. It was developed by paying attention to a new idea of exerting a safety function by modifying the member itself. Explaining this concretely, the cam member 1 according to the first embodiment is also an integrally molded product of synthetic resin, and as shown in FIG.
A cam groove 2 having an inlet 3, a lock portion 4, and an outlet 5 is formed, and is rotatably supported by a mounting shaft portion 7 on the housing H side via a torsion spring 8 and a washer 9, and Although it is always urged in one predetermined direction by spring pressure, it is characterized in that the lock portion 4 and the lead-out port 5 are provided with a considerable space on one edge side that defines the cam groove 2. On the other hand, a substantially inverted V-shaped stopper guide wall 6 projecting between the lock portion 4 and the outlet 5 is integrally formed on the other edge side opposite to the one edge to form the pin member P. The locking portion 4 to be locked is located far outside the tip portion of the stopper guide wall 6. Therefore, in the first embodiment, by setting such a positional relationship, during the normal opening operation, the gap existing between the tip end portion of the stopper guide wall 6 and the one edge of the cam groove 2 is used, The pin member P is allowed to move in the direction of the outlet 5 of the cam groove 2, and when an inertial force is applied, the pin member P is brought into contact with the outer edge 6a of the stopper guide wall 6 to cause the pin member P to move. The movement of the cam groove 2 in the direction of the outlet 5 can be prevented.

In the figure, reference numeral 10 denotes a restriction wall portion for restricting the biasing position of the cam member 1 by the torsion spring 8, and 11
Is a locking wall portion for locking the end of the torsion spring 8 in cooperation with the arm portion 1b of the cam member 1, and 12 is a constant pressure spring for constantly urging the storage box B in the opening direction. The winding shaft 13 is wound around the winding shaft 13 in a contracting direction, the winding shaft 13 side is fixed to the rear end wall of the storage box B via the holding portion 14, and the free end 12a side is closer to the opening of the housing H. By fixing it to the bottom surface with screws or the like, it acts as a biasing means for the storage box B.

Therefore, even in the storage device having such a structure,
In the case of ordinary use, if the storage box B is pushed into the housing H against the biasing spring pressure of the constant pressure spring 12, as shown in FIG. The pin member P provided on the cam member 1 abuts on the outer peripheral guide surface 1a of the cam member 1 to resist the cam member 1 against the spring pressure of the torsion spring 8 in the direction opposite to the urging direction (the arrow direction in the figure). ) To reach the inlet 3 of the cam groove 2. Then, since the cam member 1 pivots slightly in the biasing direction by the spring pressure of the torsion spring 8, the pin member P is guided into the cam groove 2, but at this time, the storage box B also has a constant pressure spring. Since it is slightly retracted by the urging spring pressure of 12, the pin member P is automatically locked to the lock portion 4 of the cam groove 2 having the above-mentioned positional relationship, so that the storage box B is stored. It reliably locks in the closed position in the housing H against the biasing spring pressure of the constant pressure spring 12.

Further, if the storage box B is further pushed into the housing H in this state, as shown in FIG.
Is disengaged from the lock portion 4 of the cam groove 2 and the cam member 1 is further swung in the urging direction (lock releasing direction). After that, if the pushing operation to the storage box B is released, for example, the stopper guide wall 6 Even if it projects, the pin member P is
As shown in FIG. 5, it follows the same trajectory as in the conventional case, and automatically comes out of the cam groove 2 of the cam member 1 through the outlet port 5, so that the storage box B is forced by the urging spring pressure of the constant pressure spring 12. Thus, it is possible to automatically move in the opening direction from the opening of the housing H.

In the locked state of the storage box B in the closed position, when the vehicle collides or suddenly brakes,
When a large inertial force G acts, even in the first embodiment,
The pin member P moves together with the storage box B in the same direction as the inertial force G, but at this time, as shown in FIG. 6, the pin member P moves outside the edge 6 of the stopper guide wall 6.
When the pin member P is instantaneously brought into contact with a, the pin member P comes out of the outlet 5 of the cam groove 2.
As a result, it surely prevents movement in the direction
Since the cam member 1 cannot be swung in the unlocking direction at all, the storage box B remains in the closed position in the housing H,
There is no need to worry about accidentally projecting outward from the inside of the housing H.

That is, in the first embodiment, during a normal opening operation, the cam member 1 is swung in the unlocking direction to move the pin member P in the cam groove 2 toward the outlet port 5. Allowing, but paying attention to that the moving speed of the pin member P becomes faster than the turning speed of the cam member 1 in the unlocking direction when a sudden inertia force G acts, and the cam groove 2 is By forming a stopper guide wall 6 on the other edge side that defines it and arranging the lock portion 4 outside of the stopper guide wall 6, it is possible to achieve the required safety function by simply adopting a very simple structure. That's what I got.

Further, when the inertial force G disappears, the storage box B moves to the original position by the biasing spring pressure of the constant pressure spring 12. At this time, the pin member P moves in the stopper guide wall 6. Since the outer edge 6a is surely guided, the outer edge 6a is guided to the lock portion 4 positioned outside the stopper guide wall 6, and the lock portion 4 is automatically locked, the lock of the cam member 1 is also obtained. The turning in the releasing direction is blocked, and the storage box B remains in the closed position in the housing H.

Next, an automobile storage device with a safety function according to the second embodiment will be described.
Although the structure of the first embodiment is premised as it is, the difference is that the cam member 1 as shown in FIG.
On the opposite side of the regulation wall portion 10 that regulates the biasing position of the torsion spring 8, the turning amount in the direction opposite to the biasing direction of the cam member 1, in other words, the pin member P is the introduction port of the cam groove 2. Another restriction wall portion 15 for restricting the turning amount in the direction away from the side 3 is additionally provided. The reason is that for the normally predictable inertial force G, only the configuration of the first embodiment is sufficient, but, for example, a larger inertial force G1 beyond this is applied, or an oblique direction is generated. When a large inertial force G2 is applied to the cam member 1 due to its structure, the center of gravity of the cam member 1 exists on the tip end side.
As shown in FIG. 4, the cam member 1 may largely overrun in the direction opposite to the biasing direction of the torsion spring 8 (the direction of the arrow in the figure), and the pin member P may come off from the introduction port 3 side of the cam groove 2. Because it has. In view of this, in the second embodiment, by further providing the above-described another restriction wall portion 15, even if the inertial force G1 beyond the imagination or the inertial force G2 from an oblique direction acts, the configuration shown in FIG. As shown in FIG. 4, the turning amount of the cam member 1 in the opposite direction is suppressed within the necessary minimum range to prevent the pin member P from easily coming off from the introduction port 3 side of the cam groove 2. .

However, under the second embodiment, there is a problem in which position the turning amount of the cam member 1 is restricted, but in order to lock the storage box B in the closed position, it will be described with reference to FIG. As described above, the cam member 1 must be rotated in the direction opposite to the biasing direction of the torsion spring 8 to guide the pin member P from the introduction port 3 into the cam groove 2.
It is not allowed that the tip end edge of the outer peripheral guide surface 1a that defines the introduction port 3 of the above protrudes outward (downward in the drawing) from the movement locus line L of the pin member P. For this reason, in order to regulate the turning amount of the cam member 1 by the other regulating wall portion 15, the turning of the cam member 1 in the reverse direction is guaranteed by the minimum required amount, and the pin member P is secured.
On the inner side (upper side in the figure) of the movement locus line L through which is smoothly guided into the introduction port 3 of the cam groove 2.
Another restriction wall portion 15 is provided on the housing H side so that the leading edge of a is located at the position closest to the movement locus line L.

Therefore, if such a condition is set, even if the cam member 1 attempts to pivot largely in the direction opposite to the biasing direction of the torsion spring 8 by the action of the inertial forces G1 and G2, the cam After the member P has collided with the above-mentioned another regulating wall portion 15, the pin member P which is swung again in the urging direction by the spring pressure of the torsion spring 8 and moves backward by the spring pressure of the constant pressure spring 12 is moved. Since it is possible to reliably receive the pin member P, it is possible to prevent the pin member P from being accidentally disengaged from the side of the introduction port 3 of the cam groove 2 of the cam member 1, and in comparison with that of the first embodiment. Therefore, a more reliable safety function can be expected.

Next, a vehicle storage device with a safety function according to the third embodiment will be described.
The second embodiment is developed for the same purpose as the second embodiment, but the difference from the second embodiment is that, as shown in FIG. The balance adjusting portion 16 is integrally provided on the rear end side of the cam member 1 so that the center of gravity thereof coincides with the mounting shaft portion 7 serving as the turning center. Regarding the balance adjusting unit 16 for moving the center of gravity, the shape, size, wall thickness, etc. are appropriately set in the drawing to give a desired weight. It is optional depending on the implementation that the weight is reduced and a separately molded weight is additionally provided to achieve the intended purpose.

Therefore, under the third embodiment, even if the inertial force G1 more than expected or the inertial force G2 from an oblique direction acts, the center of gravity of the cam member 1 is now placed on the mounting shaft portion 7. Because of the existing relationship, this can effectively prevent the overrun of the cam member 1 in the opposite direction, and thus the pin member P is also accidentally disengaged from the introduction port 3 side of the cam groove 2 of the cam member 1. Thus, there is no fear that the storage box B will be accidentally moved from the opening of the housing H in the opening direction to injure the driver or passengers.

Although each of the above-described embodiments is directed to the storage box B that opens and closes linearly with respect to the housing H, the present invention is not limited to this, and for example, faces downward. Needless to say, the present invention can be easily applied to a rotary storage box or the like that is opened by rotating it to be closed by rotating upward, as long as it does not violate the spirit of the present invention. Further, the biasing means of the storage box B is not limited to the constant pressure spring 12 shown in the figure, and other known spring means can be used.

[0025]

As described above, the present invention is different from the conventional storage device with a safety function in that the push member can be pushed by simply modifying the cam member itself without using the inertial responsive body and its accessories. Since it becomes possible to exert the safety function of the open type storage device, the dedicated parts for exerting the safety function are completely unnecessary. Therefore, the storage device itself can be greatly contributed to simplification and downsizing, and the number of assembling steps can be reduced accordingly, so that the cost can be reduced. Moreover, the structure in which the pin member is brought into contact with the outer edge of the stopper guide wall of the cam member when an inertial force acts can surely prevent the cam member from turning in the unlocking direction in any state. So
The reliability can be greatly improved as compared with the conventional one. In addition, if a regulation wall is provided on the housing side or a balance adjustment part is provided on the cam member side, a reliable safety function will be achieved even if an inertial force larger than expected or an oblique inertial force acts. It is extremely convenient because it can be guaranteed to exhibit.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing a vehicle storage device with a safety function according to a first embodiment of the present invention.

FIG. 2 is an explanatory view showing an initial state in which the storage box is pushed into the housing.

FIG. 3 is an explanatory diagram showing a state in which the pin member is locked to the lock portion of the cam member.

FIG. 4 is an explanatory diagram showing a state in which the pin member is disengaged from the lock portion of the cam member.

FIG. 5 is a cross-sectional view of essential parts showing a state where the storage box has moved in the opening direction.

FIG. 6 is an explanatory diagram showing a state in which a safety function is activated.

FIG. 7 is a perspective view of a main part of a storage device for a vehicle with a safety function according to a second embodiment.

FIG. 8 is an explanatory diagram showing an overrun state of a cam member.

FIG. 9 is an explanatory diagram showing a state in which overrun of the cam member is prevented.

FIG. 10 is a plan view of relevant parts showing a storage device for a vehicle with a safety function according to a third embodiment.

FIG. 11 is an explanatory view showing a state in which the pin member is locked to the lock portion of the conventional cam member.

FIG. 12 is an explanatory view showing a state where the pin member is disengaged from the lock portion of the conventional cam member.

[Explanation of symbols]

 1 cam member 2 cam groove 3 cam groove inlet port 4 cam groove lock portion 5 cam groove outlet port 6 stopper guide wall 6a outer edge of the guide wall 7 mounting shaft portion (swivel center) 8 torsion spring 15 regulating wall portion 16 Balance adjustment part H Housing B Storage box P Pin member G Inertial force G1 Inertial force G2 Inertial force

Claims (3)

[Claims] 1. A housing is supported by a housing so as to be openable and closable, and the housing is constantly urged by an urging spring pressure in an opening direction, while the housing has an inlet, a lock portion and an outlet. By providing a cam member having a cam groove rotatably, and providing a pin member that moves in the cam groove of the cam member on the storage box side, and locking the pin member in the lock portion of the cam groove, The storage box is locked against the biasing spring pressure at the closed position in the housing, and in this state, the storage box is further pushed into the housing to lock the cam groove of the pin member to the lock portion. In an automobile storage device configured to release and automatically move a storage box in an opening direction from an opening of a housing, the cam member has a lock portion and a lead-out port on one edge side that defines its own cam groove. While forming and at intervals , A stopper guide wall projecting between the lock portion and the outlet is integrally formed on the other edge side that faces the one edge, and the lock portion that locks the pin member is located outside the stopper guide wall. A storage device for automobiles with a safety function characterized by being positioned. 2. When the cam member swivels with respect to the housing in the direction in which the pin member is disengaged from the introduction side of the cam groove of itself, a restricting wall portion that restricts the swiveling amount of the cam member is provided. An automobile storage device with a safety function according to claim 1. 3. The storage device for a vehicle with a safety function according to claim 1, wherein the cam member is provided with a balance adjusting portion for making the center of gravity of the cam member coincide with the turning center.