JP3736832B2 - Overhead console - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an overhead console that is attached to a ceiling of a vehicle and accommodates small items such as a mobile phone, a CD, and sunglasses.
[0002]
[Prior art]
As shown in FIGS. 1 and 2, the overhead console includes holders 5 and 6 that can be opened and closed to accommodate small items. As a mechanism for locking the holder in a closed state, there is a mechanism in which a lock member 7 is formed at the front end of the holder as shown in the holder 6 in the figure, and the lock member 7 is engaged with the housing body 2. In addition, there is a holder 5 that opens and closes by a push-push mechanism that applies a heart cam mechanism in which a mechanism for locking is completely invisible from the outside. In this open / close structure, the holder 5 is automatically locked and locked in a closed state by pushing the holder 5 closed with fingers from the open state, and the closed holder 5 is pushed again with fingers. The holder 5 can be opened by unlocking.
[0003]
As shown in FIG. 3, the push-push mechanism using the heart cam mechanism is configured such that a heart cam 22 having a complicated shape is rotatably supported on a portion 23 integrated with the housing body 2, and is attached to the side wall of the holder 5. A pin 21 is implanted in a projecting manner in the horizontal direction, and the pin 21 engages and disengages from the heart cam 22 so that the holder 5 that opens and closes around the shaft 11 is locked or opened in a closed state. It is what you do. This mechanism is characterized in that since the structure for locking the holder 5 in the closed state is not visible from the outside, the appearance is clean and the design is excellent. In addition, since the holder 5 can be opened and closed simply by pressing one end of the surface of the holder 5, the opening and closing operation feeling is very comfortable.
[0004]
[Problems to be solved by the invention]
However, in the push-push mechanism using the above-described conventional heart cam mechanism, the angle orientation of the holder 5 is incorrect when the holder 5 is closed and locked, and the surface of the holder 6 or the housing body 2 adjacent to the end of the holder 5 There is a problem that a step may occur between the two. This is because the pin 21 and the heart cam 22 are inevitably disposed near the shaft 11 because they need to be disposed at a position where they cannot be seen from the outside when the holder 5 is opened. For this reason, when the holder 5 is closed, that is, when the pin 21 is locked to the heart cam 22, even if the position of the pin 21 is slightly deviated, the angular position of the pin 21 is deviated, and the angular posture of the holder 5 is greatly deviated. It will be. Then, the front end 5A of the holder 5 is not flush with the surfaces of the adjacent holder 6 and the housing body 2, and a step is generated as indicated by an imaginary line in FIG. Although the level difference is about 0.5 mm to 2 mm, the overhead console 1 is placed on the head of the occupant and is close to the line of sight of the occupant. For this reason, there is a problem that high precision is required for each part and careful attention is required for assembly.
[0005]
Furthermore, the overhead console is a member mounted on the automobile. In a car, it must be assumed that the vehicle is left under a desert heat, with the window closed, and the temperature in the passenger compartment must rise to 80 ° C. Under such a high temperature, the coefficient of thermal expansion differs due to the difference in material and shape of each component. Therefore, if there is even a slight difference between the holder 5 and the housing body 2 during assembly at room temperature, the difference will be There was a problem that it expanded and became very unsightly. For this reason, conventionally, the dimensional accuracy of each part is suppressed as much as possible to increase the dimensional accuracy, and the combination of the parts is selected to eliminate a step during assembly.
[0006]
Therefore, the invention according to claim 1 of the present invention can adjust the angular posture of the holder in the closed state at the time of assembly, and eliminates the step between the holder and the housing body by a combination of parts having normal dimensional accuracy. The purpose is to provide an overhead console that looks nice and nice.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention is based on the housing body by engaging and disengaging the heart cam pivotally supported by the housing body and the pin implanted and fixed to the holder. A holder opening and closing structure with a push-push mechanism that applies a heart cam mechanism that allows the holder to be pivotally supported and freely opened and closed to be locked when the holder is closed and the holder to be opened. In the overhead console provided, the heart cam is pivotally supported by a cylindrical stepped portion of a stepped screw fastened to a housing body, and the stepped screw has a cylindrical stepped portion with respect to a center line of the screw. A cylindrical step is formed so that the center line is eccentric.
[0008]
When formed in this way, when the stepped screw is slightly rotated after the overhead console is assembled, the center position of the columnar step portion is finely adjusted because the columnar step portion is eccentric. If the center position of the cylindrical step changes slightly, the center of rotation of the heart cam changes slightly, and the position of the pin locked to the heart cam can be changed slightly to make fine adjustment. Since the position of the pin when the holder is closed and locked and the pin is locked to the heart cam can be finely adjusted, the angular posture of the holder when the holder is closed can be finely adjusted.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing the overhead console 1 as viewed from below. The overhead console 1 is formed of a synthetic resin mainly made of polypropylene, and the housing body 2 is formed with a smooth curve along the ceiling of the vehicle. Two map lamps 3 and 3 and their push button switches 4 and 4 are arranged in front of the overhead console 1 (the traveling direction of the vehicle). A holder 5 that is opened and closed by a push-push mechanism using a heart cam mechanism is disposed behind the push button switches 4 and 4, and a second holder 6 is disposed behind the holder 5. The second holder 6 can be locked to the housing body 2 in a closed state by a lock member 7 formed integrally with the holder 6.
[0010]
FIG. 2 is a perspective view seen from below showing a state in which the holder 5 and the second holder 6 are opened. The housing body 2 is provided with rooms for accommodating the holder 5 and the second holder 6 respectively. An internal gear portion 8 is formed integrally with the front holder 5, and this gear portion 8 meshes with a damper gear (not shown) installed on the housing body 2. The damper gear keeps the opening and closing speed of the holder 5 constant, realizing a feeling of moderation.
[0011]
FIG. 3 is a longitudinal sectional view of a main part showing a cross section taken along line AA of FIG. The holder 5 is rotatably attached to the housing body 2 by a shaft 11 and the second holder 6 by a shaft 12. A relatively light accessory such as sunglasses 13 is accommodated in the front holder 5, and a mobile phone 14, CD, MD, etc. are accommodated in the second holder 6. The second holder 6 is closed when a lock member 7 formed at the front end of the holder 6 is engaged with the housing body 2, and the lock member 7 is pressed with a finger to engage with the housing body 2. By removing the, the second holder 6 can be opened as indicated by the imaginary line. Since the second holder 6 is locked by the lock member 7 at the tip when the second holder 6 is closed, the angular posture of the holder 6 when the holder which is a problem in the present invention is closed does not become a problem.
[0012]
On the other hand, the front holder 5 is locked by engaging and locking a complicatedly shaped heart cam 22 with a pin 21 that is implanted and fixed in the upper left side of the side wall of the holder 5 in a horizontal direction. ing. An arcuate curve 101 indicated by a one-dot chain line in the figure is a locus of the pin 21 that accompanies opening and closing of the holder 5. The heart cam 22 is pivotally supported by a stepped screw 24 on a columnar portion 23 formed integrally with the housing body 2 and is rotatable in a vertical plane. This is a push-push mechanism using a so-called heart cam mechanism, and the holder 5 can be locked in a closed position by pushing one end of the holder 5 with a finger, and the end of the holder 5 is pushed again with a finger from the locked position. As a result, the pin 21 and the heart cam 22 are disengaged, and the holder 5 can be opened.
[0013]
At this time, the pin 21 and the heart cam 22 are necessarily arranged near the shaft 11. For this reason, if the position of the pin 21 is slightly deviated in a state where the holder 5 is closed, that is, in a state where the pin 21 is locked to the heart cam 22, the angular posture of the holder 5 is greatly deviated. Then, the front end 5A of the holder 5 is not flush with the surfaces of the adjacent holder 6 and the housing body 2, and a step is generated as indicated by an imaginary line in FIG. Although the level difference is about 0.5 mm to 2 mm, the overhead console 1 is placed on the head of the occupant and is close to the line of sight of the occupant. Therefore, high precision is required for each member 2, 5, 21, 22, 23, and careful attention has been required for assembly. This is a problem to be solved by the present invention.
[0014]
FIG. 4 is an exploded perspective view showing the heart cam mechanism. A shaft 11 is integrally formed on the holder 5 so as to protrude laterally. The shaft 11 is fitted into the hole of the housing body 2 so that the holder 5 is rotatably supported. At this time, the torsion coil spring 25 is inserted into the boss portion 11A of the base portion of the shaft 11, one end of the hook is locked to the holder 5, and the other end is locked to the housing body 2 to draw the holder 5 in the drawing. It is biased counterclockwise, that is, in the opening direction. Further, a pin 21 is implanted on the upper right shoulder of the side wall of the holder 5 so as to protrude in the horizontal direction and is fixed. The pin 21 is a member for engaging with the heart cam 22.
[0015]
On the other hand, a screw hole 23 </ b> A is formed in the columnar portion 23 formed integrally with the housing body 2, and a heart cam 22 and a coil spring 26 are attached by a stepped screw 24. The coil spring 26 has both an action as a torsion coil spring and an action as a compression coil spring. One end of the hook of the coil spring 26 is locked to the heart cam 22, and the other end is locked to the columnar portion 23. The coil spring 26 urges the heart cam 22 in the clockwise direction of the drawing and acts to elastically press the heart cam 22 against the columnar portion 23.
[0016]
5A and 5B are views showing the stepped screw 24, where FIG. 5A is a perspective view and FIG. 5B is a front view. The stepped screw 24 includes a screw portion 24A screwed into the screw hole 23A of the columnar portion 23, a columnar step portion 24B having a larger diameter than the screw portion 24A and having a cylindrical shape, and a base portion 24C. The cylindrical step portion 24B is formed eccentrically with respect to the screw portion 24A and the base portion 24C, and the distance ΔX between the center line 102 of the screw portion 24A and the center line 103 of the cylindrical step portion 24B, that is, the eccentric amount ΔX is 0.5 mm. Set to degree. Here, the screw portion 24A is screwed almost completely into the screw hole 23A of the columnar portion 23, and the heart cam 22 and the coil spring 26 are inserted into and supported by the columnar step portion 24B. The inner peripheral surface of the hole 22A of the heart cam 22 is formed not in a cylindrical shape but in a tapered shape with an inclination. For this reason, the heart cam 22 can be rotated about the cylindrical step portion 24B, and can be swung from a plane perpendicular to the rotation axis so that the heart cam 22 is slightly inclined in the thickness direction of the heart cam 22.
[0017]
FIG. 6 is a perspective view for explaining a state of engagement between the heart cam 22 and the pin 21 erected on the holder 5. When the holder 5 is pushed into the housing body 2 in the direction of closing with a finger, the pin 21 moves according to the arc-shaped locus 101 as shown in FIG. 6A, and the pin 21 receives the curved surface of the heart cam 22. It comes into contact with the portion 22B. When the holder 5 is further pushed in the closing direction, the pin 21 presses the heart cam 22, and the heart cam 22 starts to rotate in the direction of the arrow 104, that is, in the clockwise direction of the drawing against the urging force of the coil spring 26. At this time, the pin 21 slides in contact with the curved surface receiving portion 22B of the heart cam 22 and reaches the curved surface tip 22C. When over the curved surface tip 22C, the heart cam 22 is suddenly reversed counterclockwise by the urging force of the coil spring 26, and the pin 21 collides with the wall portion near the locking point 22D where the bifurcated portion of the heart cam 22 is narrowed. This is the state shown in FIG. At this time, there is a crisp sound of “click” where the pin 21 and the heart cam 22 collide.
[0018]
When the finger is released from the holder 5 in this state, the return pin 21 follows the arc-shaped locus 101 slightly in the direction in which the holder 5 opens due to the urging force of the torsion coil spring 25 (see FIG. 4) that urges the holder 5 to rotate. And return slightly in the direction of arrow 105. Accordingly, the heart cam 22 is slightly rotated counterclockwise in the drawing. Then, it stops at a position where the rotation locus of the locking point 22D of the heart cam 22 and the arcuate rotation locus 101 of the pin 21 intersect with the center of the columnar step portion 24B of the stepped screw 24 as the rotation center. That is, the pin 21 is pulling the heart cam 22. This state is a state in which the holder 5 is closed and locked and locked. (See FIG. 6B).
[0019]
When the end of the holder 5 is pressed again with fingers from the state in which the holder 5 is closed and locked, the pin 21 moves the arcuate rotation locus 101 in the direction opposite to the arrow 105. At this time, the pin 21 presses the wall portion near the locking point 22D of the heart cam 22 to rotate the heart cam 22 in the clockwise direction of the drawing. When the pin 21 gets over the wall tip 22E, the heart cam 22 is suddenly reversed counterclockwise by the urging force of the coil spring 26, and the pin 21 enters the inclined groove 22F. This is the state shown in FIG. At this time, there is a crisp sound of “click” where the pin 21 and the heart cam 22 collide.
[0020]
When the finger is released from the holder 5, the pin 21 passes through the inclined groove 22 </ b> F and is detached from the heart cam 22 as indicated by an arrow 106. Of course, since the pin 21 moves along the arcuate rotation trajectory 101, the heart cam 22 slightly rotates counterclockwise. At this time, since the tip of the pin 21 is in sliding contact with the inclined surface at the bottom of the inclined groove portion 22F, the tip of the pin 21 presses the heart cam 22, and the heart cam 22 is slightly swung in the thickness direction. Such movement is possible because the coil spring 26 also acts as a compression spring and the hole 22A of the heart cam 22 is tapered.
[0021]
When the pin 21 is detached from the heart cam 22, both the heart cam 22 and the holder 5 become free. The heart cam 22 rotates counterclockwise by the biasing force of the coil spring 26 and returns to the standby position. The holder 5 and the pin 21 are twisted coil springs. The holder 5 is opened by rotating clockwise by the urging force of 25. In this way, the holder 5 can be closed and locked by pressing one end of the holder 5 with fingers, and the holder 5 in the closed state can be opened by pressing one end with fingers. It can be in the state. This is why it is called a push-push mechanism using a heart cam mechanism. Since this opening / closing mechanism can be opened and closed simply by pressing one end of the holder 5 with a finger, the operation feeling of opening and closing the holder is very good.
[0022]
Based on the above configuration, the operation will be described.
FIG. 7 is a longitudinal sectional view showing the positional relationship between the holder 5 and the heart cam 22. The closed position of the holder 5 that rotates about the shaft 11 and opens and closes is in a closed position, in which the pin 21 standing on the holder 5 is locked to the heart cam 22 and the pin 21 pulls the heart cam 22. is there. When the position of the pin 21 in the locked position is slightly deviated, the angle posture of the holder 5 in the closed state is deviated, and as shown by an imaginary line in FIG. 7, the tip 5A of the holder 5 is adjacent to the adjacent holder 6 or housing body. 2 is not flush with the surface of No. 2, resulting in a step. However, in this embodiment, the stepped screw 24 for supporting the heart cam 22 is formed by eccentrically forming the cylindrical stepped portion 24B. Therefore, the rotation of the heart cam 22 is performed by slightly unwinding the stepped screw 24 (maximum 180 °) from the state in which the stepped screw 24 is screwed to the columnar portion 23 and the heart cam 22 is assembled by tightening the screw. The center position can be finely adjusted. If the rotation center position of the heart cam 22 is finely adjusted, the position of the pin 21 at the lock position can be finely adjusted.
[0023]
Since the eccentric amount ΔX of the cylindrical stepped portion 24B is 0.5 mm, the position of the heart cam 22 can be finely adjusted by rewinding at a maximum of 180 °. If the position of the heart cam 22, that is, the position of the pin 21 can be finely adjusted up to 1 mm, the rotation radius of the tip 5 A of the holder 5 is about twice the rotation radius of the position of the pin 21. The position of the part 5A can be adjusted up to about 2 mm. Therefore, by slightly rotating and adjusting the stepped screw 24, the tip 5A of the holder 5 can be adjusted to be flush with the surfaces of the adjacent holder 6 and the housing body 2 so that there is no step.
[0024]
FIG. 8 is an explanatory view showing the relationship between the rotation of the eccentric stepped screw 24 and the angular posture of the holder 5. The holder 5 rotates about the shaft 11 as a rotation center, and the pin 21 implanted and fixed on the holder 5 moves on the arc-shaped locus 101. On the other hand, the locking point 22D of the heart cam 22 rotatably supported by the cylindrical step portion 24B of the stepped screw 24 rotates about the cylindrical step portion 24B and moves on the arc locus 205. Therefore, the point where the arc locus 101 and the arc locus 205 intersect is the position of the pin 21 where the heart cam 22 locks the pin 21 and locks the holder 5 at the closed position.
[0025]
Here, since the center line 103 of the cylindrical step portion 24B is eccentric by ΔX with respect to the center line 102 of the screw portion 24A, when the stepped screw 24 is rotated ± 90 °, the center line 103 of the cylindrical step portion 24B is half It moves on a circular trajectory 201. Therefore, the outer circumferential circle of the cylindrical stepped portion 24B moves from the circle 202 to the circle 203 by the rotation of ± 90 °. Accordingly, the arc locus 205 of the locking point 22D of the heart cam 22 also moves from the arc locus 206 to the arc locus 207. Therefore, when the stepped screw 24 is rotated by ± 90 °, the locking position of the pin 21 is moved by an angle Δθ from the point where the arc locus 206 and the arc locus 101 intersect to the point where the arc locus 207 and the arc locus 101 intersect. By moving the pin 21 at this angle Δθ, the holder 5 can be finely adjusted from the angular orientation of the holder 5-206 to the angular orientation of the holder 5-207. This is the principle of finely adjusting the angular posture with the holder 5 closed.
[0026]
【The invention's effect】
As described above, the invention according to claim 1 of the present invention is such that the heart cam is supported by the eccentric stepped screw, so that when the overhead console is assembled, the angular posture of the holder in the closed position is set. There is an excellent effect that can be finely adjusted. For this reason, the holder in the closed position can be assembled so as to be flush with the surface of the housing body without requiring a particularly high dimensional accuracy for each component constituting the overhead console. Even if the temperature becomes high, there is an effect that it is possible to prevent the appearance from being deteriorated such that the holder opens and a step is generated. In addition, as the structure, only an eccentric portion is provided in the stepped screw, so that no special parts need be added to adjust the angle of the holder at the closed position. For this reason, there is almost no increase in cost.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overhead console viewed from below.
FIG. 2 is a perspective view seen from below showing a state in which a holder and a second holder are opened.
3 is a longitudinal sectional view of a main part showing a cross section taken along line AA in FIG. 1; FIG.
FIG. 4 is an exploded perspective view showing a heart cam mechanism.
5A is a perspective view, and FIG. 5B is a front view of a stepped screw.
FIG. 6 is a perspective view for explaining a state of engagement between a heart cam and a pin standing on a holder.
FIG. 7 is a longitudinal sectional view showing a positional relationship between a holder and a heart cam.
FIG. 8 is an explanatory diagram showing the relationship between the rotation of the eccentric stepped screw and the angular posture of the holder.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Overhead console 2 Housing body 11 Shaft 21 Pin 22 Heart cam 23 Column-shaped part 24 Stepped screw 24B Cylindrical step part 26 Coil spring

Claims (1)

Engagement and disengagement of the heart cam pivotally supported by the housing body and the pin that is implanted and fixed to the holder allows the holder to be pivotally supported by the housing body so that the holder can be opened and closed. In an overhead console equipped with a holder opening and closing structure with a push-push mechanism that applies a heart cam mechanism that enables stopping and the holder to be in an open state,
The heart cam is pivotally supported by a cylindrical step portion of a stepped screw fastened to the housing body;
The stepped screw has a cylindrical step portion formed such that the center line of the columnar step portion is decentered with respect to the center line of the screw;
An overhead console characterized by

Images