JP3926610B2 - Opening and closing body locking mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking mechanism for an opening / closing body that can be widely applied to, for example, a cup holder, a center console box, a glove box, and a spectacle case of an automobile.
[0002]
[Prior art]
As this type of conventional locking mechanism, there is one disclosed in JP-A-10-278652.
Although the conventional lock mechanism is not specifically shown, it is applied to a cup holder of an automobile, and the cup holder itself can be rotated on the base plate fixed to the interior side of the automobile and the base plate. A storage cover that is pivotally supported by the base plate and also serves as a tray, a long support arm, a short support arm, and a holding plate that holds the cup. A push button type elastic locking claw is provided at the center of the upper end of the storage cover, and a concave locking portion for locking the elastic locking claw is provided at the center of the front end of the storage cover.
[0003]
When actually used as a cup holder, when the elastic lock claw is pushed to release the engagement of the engagement portion with the elastic lock claw, the storage cover rotates to the deployed position and at the same time, each support arm Since the support plate is rotated and the holding plate is also rotated to the unfolded position, the cup is inserted into the holding hole defined on the inside of the holding plate and the bottom of the cup is stored in the unfolded state. If it puts on a cover, a cup can be hold | maintained by this.
[0004]
If the storage cover is not used as a cup holder, the long support arm, the short support arm, and the holding plate can be obtained by rotating the storage cover toward the base plate and engaging the locking portion with the elastic lock claw. Is folded while being rotated and stored inside the storage cover, so that the storage cover is locked in that position.
[0005]
[Problems to be solved by the invention]
Therefore, in the conventional lock mechanism, it is possible to lock the storage cover so that it can be opened and closed with respect to the base plate only by locking the push-button type elastic lock claw and the locking portion. However, if the elastic lock claw is accidentally touched during the assembly process to the vehicle body, the storage cover may easily rotate to the deployed position. Therefore, due to this, there was a dislike that the assembly work and the like naturally become complicated.
[0006]
[Means for Solving the Problems]
The present invention has been developed to effectively solve the problems of such a conventional locking mechanism, and is a locking mechanism for an opening / closing body that can be attached to a base plate so as to be openable / closable. On one side, a slider that is centered by the biasing spring pressure is provided so as to be movable left and right, and a first cam slope and a first lock plane are formed on the slider, and the other is a protrusion that does not interfere with the first lock plane. When a wall is projected in the opening / closing direction of the opening / closing body, a second cam slope and a second lock plane corresponding to each of the surfaces are formed on the projection wall, and the opening / closing body is moved in the closing direction, the first cam slope When the slider is moved by the sliding action of the slope of the second cam and the opening / closing body reaches the closed state, the opening / closing body is locked at the position by the contact action of the first locking plane and the second locking plane. Adopted.
[0007]
According to a second aspect of the invention, on the premise of the first aspect, the first cam slope and the first lock plane are continuous at an acute angle, and the second cam slope and the second lock plane are continuous at an acute angle. Adopted the configuration.
[0008]
According to a third aspect of the present invention, on the premise of the first aspect, the slider is provided with a pair of leg pieces, while the base plate or the opening / closing body is provided with a holding portion for the compression coil spring defined by the stopper wall. Thus, a configuration is adopted in which a compression coil spring is interposed between the pair of leg pieces, and the extension direction of the compression coil spring and the extending direction of the first lock plane and the second lock plane are the same direction.
[0009]
The invention described in claim 4 is based on the premise of claim 3 and adopts a configuration in which plate-like bodies are attached to both ends of the compression coil spring.
[0010]
Therefore, in the invention described in claim 1, in the relationship of adopting a configuration in which the lock state of the opening / closing body can be released by the movement operation of the slider in the left-right direction, temporarily during the assembly process to the vehicle body, etc. Even if the operator accidentally touches the slider, unless the slider is moved in the left-right direction, the opening / closing body is not unlocked, so that it is possible to effectively prevent the opening / closing body from being accidentally opened.
Further, when the opening / closing body is unlocked by the moving operation of the slider, the locking can be released regardless of whether the slider is moved to the left or right, which makes the operation work convenient.
[0011]
In the invention according to claim 2, since the shift to the locked state is quick and sudden, it is easy to confirm that the user is in the locked state. In the invention according to claim 3, the number of parts is small and the space is saved. In the invention according to claim 4, since both ends of the compression coil spring are smooth, the pressure contact with the stopper wall and the pair of leg pieces is stabilized, and the smooth left-right movement of the slider is ensured.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, if the present invention is described in detail based on a preferred embodiment illustrated, the lock mechanism according to the embodiment is not limited to this, but was developed for a cup holder of an automobile. Is.
[0013]
Therefore, first, the target cup holder will be described. As shown in FIG. 1, the cup holder itself has a base plate 1 fixed to the interior side of the automobile, a storage cover 2 that also serves as a tray, and a long size. A support arm 3, a short support arm 4, and a holding plate 5 for holding a cup are provided.
[0014]
The relationship between the base plate 1 and the storage cover 2 is such that the storage cover 2 is pivotally supported by the base plate 1 via a connecting shaft 6 so that the storage cover 2 is positioned vertically along the base plate 1. , The support arms 3 and 4 and the holding plate 5 can be folded and stored inside the storage cover 2, and conversely, when the storage cover 2 is rotated to a horizontal unfolded position away from the base plate 1, The storage cover 2 can be used as a tray for placing the bottom of the cup. In the figure, reference numeral 7 denotes a torsion coil spring that is attached to a connecting shaft 6 that pivotally supports the base plate 1 and the storage cover 2 and urges the storage cover 2 in the direction of the horizontal deployment position at all times.
[0015]
The long support arm 3, the short support arm 4 and the holding plate 5 are related to the base plate 1 so that the base ends of the support arms 3 and 4 are pivotally supported by the base plate 1. The free end portions of the arms 3 and 4 are pivotally supported by the holding plate 5 so as to be shifted in position, and the holding plate 5 can be rotated by the long support arm 3 and the short support arm 4. It is the structure which supports to.
[0016]
The lock mechanism according to the present embodiment, on the premise of such a configuration, positively defines a rectangular space 8 in which a slider 12 described later is disposed on the upper end side of the base plate 1. Then, the holding portion 10 with the guide port 10 a for mounting the compression coil spring 9 is formed in the central portion in the space 8, and the notches 11 are opened on both sides of the front wall that defines the space 8. It has a configuration. The holding portion 10 is defined by a pair of guide wall 10b provided on both sides, and plate-like bodies 9a having smooth surfaces are attached to both ends of the compression coil spring 9.
[0017]
As shown in FIG. 2, the slider 12 has a plate shape and is provided in the above-described space 8 so as to be movable left and right. A knob 13 is formed integrally, and a pair of protrusions 14 having a first cam inclined surface 14 a and a first lock plane 14 b are formed on both sides of the lower surface, and the holding portion 10 is formed on the lower surface between each protrusion 14 and the operation knob 13. A pair of leg pieces 15 that interfere with the compression coil spring 9 and both sides are provided vertically from the left and right guide openings 10a. The projection 14 has a triangular shape, and the first cam slope 14a is formed on one side thereof and the first lock plane 14b is formed on the other side of the back. The first cam slope 14a is formed in the same direction. The first cam slope 14a and the first lock plane 14b are continuous at an acute angle.
[0018]
Further, for the storage cover 2 serving as an opening / closing body, a notch window 17 is formed at the center of the front end to allow the slider 12 to move in the left-right direction. A pair of projecting walls 18 having a second cam slope 18a and a second lock plane 18b corresponding to the 1 cam slope 14a and the first lock plane 14b are integrally formed. As shown in FIG. 3, the tip of each protruding wall 18 has a triangular shape and forms a second cam inclined surface 18a on one side and a second lock plane 18b on the other side. However, each second cam slope 18a is also set so as to be inclined in the same direction so as to coincide with each first cam slope 14a described above, and the second cam slope 18a and the second lock plane. Similarly to 18b, it is continuous with an acute angle.
[0019]
Therefore, as shown in FIG. 4, when the slider 12 is disposed in the space 8 of the base plate 1 and the lid 16 is assembled from the side, the spring pressure of the compression coil spring 9 attached to the holding portion 10 is used. The slider 12 is always elastically urged to the centering position, but when the storage cover 2 is rotated to the vertical storage position along the base plate 1, the storage cover 2 side as shown in FIGS. Each projecting wall 18 passes through each corresponding notch 11, and the second cam slope 18a of the projecting wall 18 comes into sliding contact with the corresponding first cam slope 14a on the slider 12, and the slider 12 is elastically moved. It will move in the direction which both cam slopes regulate against urging force.
[0020]
Then, when the storage cover 2 reaches the closed state, the sliding contact state of the cam slopes 14a and 18a is immediately released and the slider 12 itself is centered again. As a result, as shown in FIG. Since the second lock plane 18b on the storage cover 2 side comes into contact with the corresponding first lock plane 14b on the slider 12 side, the storage cover 2 is quickly locked in its storage position. The user can easily confirm the state.
[0021]
Further, when the storage cover 2 is unlocked, this time, when the slider 12 is moved right or left against the biasing force of the compression coil spring 9 via the operation knob 13, FIG. 9 to FIG. 9, the first lock plane 14b on the slider 12 side is disengaged from the second lock plane 18b on the storage cover 2 side, so that the lock of the storage cover 2 is released, and the storage cover 2 is turned into a torsion coil. The spring 7 is rotated to the horizontal deployed position by the spring pressure. If the operation of the operation knob 13 is released after the storage cover 2 is rotated, the slider 12 returns to the centering position again with the spring pressure of the compression coil spring 9.
[0022]
When the slider 12 moves in the left-right direction, the leg pieces 15 of the slider 12 come into contact with the smooth surfaces of the plate-like bodies 9a attached to both ends of the compression coil spring 9, so that the slider 12 Smooth left and right movement can be guaranteed. Further, since the extension direction of the compression coil spring 9 and the extending direction of the first lock plane 14b and the second lock plane 18b are set to be the same direction, space is saved.
[0023]
When the slider 12 is actually used as a cup holder, if the slider 12 is moved to either the left or right via the operation knob 13 protruding from the cutout window 17 of the storage cover 2, the first lock plane 14b and the first lock plane 14b 2 The contact state of the lock plane 18b is released, and the storage cover 2 is rotated to the deployed position by the spring pressure of the torsion coil spring 7. At the same time, the support guides of the support arms 3 and 4 are obtained, and the holding plate 5 is also Since it rotates to the unfolded position, after that, the cup is inserted into the retaining hole 5a defined inside the retaining plate 5 and the bottom of the cup is placed on the storage cover 2 in the unfolded state. This can hold the cup.
[0024]
When the storage cover 2 is rotated to the base plate 1 side when not used as a cup holder, the second cam inclined surface 18a on the storage cover 2 side now comes into sliding contact with the first cam inclined surface 14a on the slider 12 side. As the slider 12 is moved, the second lock plane 18b on the storage cover 2 side again comes into contact with the first lock plane 14b on the slider 12 side, so that the support arms 3 and 4 and the holding plate 5 rotate. The storage cover 2 is locked while being folded.
[0025]
Therefore, under the lock mechanism according to the present embodiment, a configuration in which the lock state of the storage cover 2 can be released by moving the slider 12 in the left-right direction is assumed. For example, even if the operator accidentally touches the slider 12, the storage cover 2 is not unlocked unless the slider 12 is moved in the left-right direction. Can be prevented.
[0026]
Moreover, when the storage cover 2 is unlocked by the movement operation of the slider 12, the lock can be released regardless of whether the slider 12 is moved to the left or right, so that the operation work is also convenient. In particular, even if there is a difference in settings such as the right handle and the left handle, no inconvenience is caused to the user.
[0027]
In this embodiment, the slider 12 is provided on the base plate 1 side and the pair of protruding walls 18 are formed on the storage cover 2 side. However, the present invention is not limited to this. Depending on the implementation, a pair of protruding walls 18 may be formed on the base plate 1 side, and a slider 12 may be provided on the storage cover 2 side.
[0028]
【The invention's effect】
As described above, the present invention adopts a configuration in which the opening / closing body can be unlocked by moving the slider in the left-right direction by adopting the above configuration. Even if the operator accidentally touches the slider, unless the slider is moved in the left-right direction, the opening / closing body is not unlocked, so that it is possible to effectively prevent the opening / closing body from being accidentally opened.
Further, when the opening / closing body is unlocked by the moving operation of the slider, the locking can be released regardless of whether the slider is moved to the left or right, which makes the operation work convenient.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a lock mechanism according to an embodiment of the present invention together with a cup holder.
2A is a front view of a slider, FIG. 2B is a plan view thereof, and FIG. 2C is a bottom view thereof.
FIG. 3 is a cross-sectional view of a main part showing the shape of a pair of protruding walls.
FIG. 4 is a perspective view showing an assembled state of the cup holder to which the lock mechanism is applied.
FIG. 5 is an explanatory view showing a state in which a first cam slope and a second cam slope are in sliding contact with each other.
FIG. 6 is an explanatory view showing a state in which the slider is moved by sliding contact between the first cam slope and the second cam slope.
FIG. 7 is an explanatory diagram showing a state in which a first lock plane and a second lock plane are in contact with each other.
FIG. 8 is an explanatory diagram showing a state in which the slider is moved rightward in order to release the contact between the first lock plane and the second lock plane.
FIG. 9 is an explanatory diagram showing a state in which the slider is moved leftward to release the contact between the first lock plane and the second lock plane.
[Explanation of symbols]
1 Base plate 2 Storage cover (opening / closing body)
3 long support arm 4 short support arm 5 holding plate 5a holding hole 6 connecting shaft 7 torsion coil spring 8 space 9 compression coil spring 9a plate-like body 10 holding part 10a guide port 10b stopper wall 11 notch part 12 slider 13 Operation knob 14 Projection 14a First cam slope 14b First lock plane 15 Leg piece 16 Lid 17 Notch window 18 Projection wall 18a Second cam slope 18b Second lock plane

Claims (4)

  A locking mechanism for an opening / closing body attached to a base plate so as to be openable / closable, wherein a slider centered by a biasing spring pressure is provided on either the base plate or the opening / closing body so as to be movable left and right. A cam slope and a first lock plane are formed, and on the other side, a projecting wall that does not interfere with the first lock plane is projected in the opening / closing direction of the opening / closing body, and the second cam corresponding to each of the above surfaces on the projecting wall When the slope and the second lock plane are formed and the opening / closing body is moved in the closing direction, the slider is moved by the sliding action of the first cam slope and the second cam slope, and when the opening / closing body reaches the closed state, A locking mechanism for an opening / closing body, wherein the opening / closing body is locked at the position by an abutting action of the first locking plane and the second locking plane. 2. The opening / closing body locking mechanism according to claim 1, wherein the first cam slope and the first lock plane are continuous at an acute angle, and the second cam slope and the second lock plane are continuous at an acute angle. . While a pair of leg pieces is provided on the slider, a holding portion for a compression coil spring defined by a stopper wall is provided on either the base plate or the opening / closing body, and the compression coil spring is interposed between the pair of leg pieces. 2. The opening / closing body locking mechanism according to claim 1, wherein an extension direction of the compression coil spring and an extending direction of the first lock plane and the second lock plane are the same direction. 4. The opening / closing body locking mechanism according to claim 3, wherein plate-like bodies are attached to both ends of the compression coil spring.

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