JPH09317311A - Lid opening and closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide as lid opening and closing device capable of confirming the fact that a hinge pin gets out of an axial hole in a box main body sice by providing a spring bar and a reversed projection. SOLUTION: The lid opening and closing device is equipped with a controlling button for handling the opening and closing of a lid and a hinge pin capable of getting out of an axial hole of a box main body side by interlocking with the controlling button. A guide cam 12 having a guide wall 15 and a reversed projection 14 positioned at a specific distance from the guide wall 15 is provided in one of the controlling button and lid, and a spring bar springingly urged toward the guide wall 15 from the reversed projection 14 side is provided in the other of them. In the course of the movement of the hinge pin in the direction getting out of the axial hole with the operation of the controlling button, the front end 20a of the spring bar is moved with the guide of the reversed projection 14, and after the hinge pin gets out of the axial hole, the front end 20a of the spring bar is moved to the guide wall 15 mentioned above from the reversed projection 14 with springingly urged force, controlling load against the controlling button is varied and, a comfortable sound is made. Accordingly, it can be confirmed that a hinge pin in an open side gets out of the axial hole in the box main body side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid opening / closing device which is rotatably attached to openings of various box bodies including lids of automobile console boxes.

[0002]

2. Description of the Related Art A device for opening and closing a lid of an automobile console box from two directions is disclosed in, for example, Japanese Patent Laid-Open No. 5-3384.
There is one disclosed in Japanese Patent Publication No. 96. Although not specifically shown, the conventional opening / closing device is provided with a pair of left and right operation buttons, which operate independently, on the left and right side portions of the lid side so as to be movable. A pair of hinge pins protruding and retracting from the front and rear end surfaces of the lid are individually connected to each operation button, and one lock shaft is provided on the back side of the pair of operation buttons, and in the lower surface concave portion of each operation button. The locking means for preventing the return of the operation button when it is pressed is individually provided. Also in this case, as in the conventional one, the pair of left and right operation buttons and the pair of hinge pins on each side are both urged outward by the spring pressure of the compression coil spring. Further, with respect to the box body side, shaft holes for engaging and disengaging the tips of the hinge pins on the left and right sides are individually provided on both front and rear sides of the opening edge.

Under the closed condition of the lid, if the lid is to be rotated leftward to open the opening of the box body, the operation button on the right side is set to its biasing spring pressure. When pushed inward, the pair of hinge pins on the right side move out of the corresponding axial hole of the box body against the biasing spring pressure in conjunction with the pushing movement of the operation button, and the inside of the lid This completely removes the lid from the
On the left side, the pair of hinge pins engaged in the shaft hole of the box body are allowed to rotate leftward about the rotation axes.

On the contrary, when the lid is rotated to the right to open the opening of the box body, the left operation button is pushed inward against the biasing spring pressure. Then, in conjunction with the pressing movement of the operation button, the pair of hinge pins on the left side are removed from the corresponding shaft holes of the box body against the biasing spring pressure, and are completely immersed inside the lid. As a result, the lid is allowed to rotate to the right with the pair of hinge pins engaged in the shaft holes of the box body on the right side as rotation axes.

Further, when the lid that opens in the opening of the box body is closed by rotating in any direction, the pair of hinge pins engaged in the shaft holes are used as rotation shafts. When the lid is turned to a predetermined direction and the lid is tilted until it abuts against the edge of the opening of the box body, the locked state of the operation button by the above locking means is automatically released. At the same time as the spring pressure is allowed to return to the original biasing position, in conjunction with this, the pair of hinge pins that are submerged inside the lid also have corresponding axial holes in the box body due to the biasing spring pressure. , Which causes the lid to close.

[0006]

Therefore, in such a conventional opening / closing device, theoretically, one of the left and right operation buttons is pushed inward, so that the pair of hinge pins existing on the opening side is pushed. It is possible to open the opening of the box body from two directions by removing it from the shaft hole of the box body. Since it does not have a means for confirming whether or not it has been removed, the operability is naturally lowered, and there is a great demand for improvement in this point in use.

[0007]

SUMMARY OF THE INVENTION The present invention has been developed to meet such a demand.
A lid opening / closing device comprising an operation button for opening and closing the lid, and a hinge pin that engages with and disengages from a shaft hole on the box body side in association with the operation button. A guide cam having a reversing protrusion located at a predetermined distance from the wall is provided, and a spring bar that is elastically urged toward the guide wall from the reversing protrusion side is provided on the other side, and the hinge pin is operated by operating the operation button. In the process of moving in the direction of coming out of the shaft hole, the tip end of the spring bar moves by being guided by the reversing projection, and after the hinge pin comes out of the shaft hole, the tip end of the spring bar comes out of the reversing projection in the guide wall. Adopted a structure that moves by elastic force.

According to a second aspect of the present invention, the lid is provided with an operation button on both sides of the lid for opening and closing the lid, and a hinge pin that engages and disengages with the shaft hole on the box body side in conjunction with the operation button. In a device for opening and closing the lid toward both sides, in one of the operation button and the lid, a guide cam having a guide wall and a reversing protrusion located at a predetermined distance from the guide wall is provided. Two pieces are provided symmetrically along the direction, and the other side is provided with a spring bar that is elastically urged toward the guide wall from the reversing projection side, and the hinge pin on one side is disengaged from the shaft hole when the operation button is operated. In the process of moving in the direction, the tip end of the spring bar moves by being guided by the one side inversion protrusion, and the hinge pin comes out of the shaft hole. Move to the Adopted the configuration that.

According to a third aspect of the present invention, based on the second aspect, the spring bar is provided for each of the two guide cams, and one spring bar is guided by the corresponding reversing projection to move. At the same time, the other spring bar was designed to stay on the corresponding guide wall.

According to a fourth aspect of the present invention, based on the second to third aspects, the end portion is inclined between the guide wall and the reversing projection so as to gradually press the tip portion of the spring bar. Defines a return path having a step portion that releases the pressing force, and in the process in which the lid moves from the open state to the closed state and the hinge pin engages with the shaft hole, the tip of the spring par moves in the return path. After the hinge pin engages with the shaft hole, the tip of the spring bar comes into contact with the bottom of the stepped portion by the elastic biasing force.

According to a fifth aspect of the present invention, based on the first to fourth aspects, the spring bar and the guide cam are locked against the biasing spring pressure that constantly biases the moving body to the centering position. The structure provided on the opposite side of the locking means is adopted.

Therefore, in any of the first to fourth aspects of the invention, the tip of the spring bar is inverted after the hinge pin is disengaged from the shaft hole of the box body by the operation of the operation button. Since it moves from the protrusion side to the guide wall by the elastic urging force, this causes a change in the operation load on the operation button and at the same time a pleasant sound of a rattling noise is generated. Therefore, the operator can immediately confirm that the hinge pin on the opening side has come out of the corresponding shaft hole of the box main body by confirming the change in the operating load by hand and the pleasant sound by the ear. Further, in particular, in the invention described in claim 3, the malfunction of the spring bar and the guide cam is eliminated, and in the invention described in claim 4, it is confirmed with a pleasant sound that the hinge pin has returned to the neutral position. According to the fifth aspect of the invention, it is possible to expect a well-balanced and smooth opening / closing operation and space saving due to the separation.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail based on a preferred embodiment illustrated in the drawings. The opening / closing device according to the embodiment is also a device for opening / closing a lid of an automobile console box from two directions. Although it was developed, the feature is that the following configuration is adopted.

Therefore, first, from the main body side of the console box, in the present embodiment, as shown in FIG. 1, standing walls 1 are provided in front of and behind the opening edge of the box main body B, and the standing walls 1 are provided. Axial holes 3 are provided at both ends with respect to the facing surface of the wall 1.
The metal brackets 2 formed with are fixed individually.

On the other hand, the lid L side which is rotatably attached to the opening of the box body B will be described later, as shown in FIG. 2, near the front portion of the rectangular substrate 4 formed of synthetic resin. The area 5 in which the movable body 16 is mounted so as to be movable in the left-right direction is positively defined, and a holding block 6 having left and right guide ports 6a is provided at a substantially central portion of the area 5 and moved into the holding block 6. The configuration is such that one compression coil spring 7 that constantly urges the body 16 to the centering position is housed.

A beak-shaped check lever 8 is rotatably supported by a supporting wall 9 near one side of the holding block 6, and one end 8a of the check lever 8 is directed toward the holding block 6. Until the other end portion 8b faces the outside from the inside of the window 10 opened on the front wall side of the substrate 4 and the other end portion 8b abuts on the bottom portion of the window 10. The one end portion 8a of the check lever 8 is biased upward by a torsion spring 11.

Further, two guide cams 12 for guiding the movement of a pair of bent tip portions 20a of a spring bar 20 which will be described later are provided symmetrically on the opposite side of the check lever 8 in the area 5. To do. As shown in FIG. 3, the left-right symmetric guide cam 12 defines a forward path 13a and a backward path 13b for guiding the movement of the bent front end portions 20a via a reversing protrusion 14 and a bottom surface of the backward path 13b. For this, an inclined shape 13c that gradually rises from the inlet side to the outlet side is applied to the inclined shape 13c.
By using the step H of the end portion, the bent tip portion 20a of the spring bar 20 is prevented from accidentally intruding into the return path 13b in advance, and after passing through the end portion, the bent tip portion 20a is bent. The tip portion 20a is elastically brought into contact with the bottom surface of the substrate 4. Further, in particular, on the return path 13b side, a long guide wall 15 is erected at a predetermined distance from the reversing projection 14, and the spring bar 20 in the return path 13b is provided via the guide wall 15. It is configured to guide the movement of the tip portion 20a.

As shown in FIG. 4, the moving body 16 described above is an integrally molded product of synthetic resin having a narrow middle portion and wide end portions. A pair of left and right operation buttons 17A and 17B are integrally connected to each other, and a stopper protrusion 18 is formed on a side surface facing the check lever 8 in the narrow intermediate portion, and faces the guide cam 12 in the intermediate portion. A holder wall 19 is integrally formed on the side surface, and both tip ends 20a are bent in a lateral L shape on the holder wall 19 to fix the spring bar 20 having a coil portion 20b at two intermediate positions. ing.

In addition to this, for the lower surface of the intermediate portion,
A pair of leg pieces 21 that interfere with the compression coil spring 7 via the respective guide openings 6a of the holding block 6 are formed, and a regulation portion 22a and a non-regulation portion 22b are connected to both ends of the wide portion. A pair of cam grooves 22 that are provided to face each other. The restriction portion 22a of each cam groove 22
The relationship between the non-restricting portion 22b and the non-restricting portion 22b is, in the state where the pair of cam grooves 22 face each other, each regulation portion 22a has a C shape in which the interval width is gradually narrowed, as shown in the figure.
The b's are set to have a parallel shape with the same maximum interval width.

Further, the moving body 16 has a cam groove 2 facing the above.
In the state in which the followers 23a and 24a of the pair of long and short hinge pins 23 and 24 existing on each side are fitted in 2 in FIG. 2, it is mounted so as to be movable in the left and right direction in the area 5 of the substrate 4 described above. In this case, it is mounted via the decorative frames 25 arranged on both sides of the area 5 of the board 4, and the long and short hinge pins 23 and 24 on each side are screwed to both sides of the area 5 of the board 4. It is movably supported by the guide frame 26.

Then, when one of the operation buttons 17A or 17B provided integrally with the moving body 16 is pressed inward, a pair of long and short hinge pins 23 on the pressing side are present.
24 is a pair of long and short hinge pins 23 existing on the opposite side, although the movements of the facing cam portions 22 of the cam grooves 22 and the guide frame 26 make them move toward each other. Due to the action of the non-restricting portions 22b having the parallel shape of the opposing cam grooves 22, the portions 24 do not move in the directions in which they approach each other.

In the figure, 27 is a support hole for supporting the tip end portion of the short hinge pin 23 on each side, which corresponds to the shaft hole 3 of the front bracket 2 described above and is formed on the front wall of the substrate 4. On the contrary, 28 is a supporting hole for supporting the tip of the long hinge pin 24 on each side, which is formed on both sides of the rear wall of the substrate 4 corresponding to the shaft hole 3 of the rear bracket 2. Has been done.

Therefore, according to the present embodiment, the moving body 1
6, the long and short hinge pins 23, 24 on each side supported by the guide frame 26 in the cam grooves 22 formed at both ends
In a state in which the followers 23a and 24a are engaged with each other and the holding block 6 is housed in the intermediate portion of the moving body 16, the moving body 16 is placed in the area 5 of the substrate 4 through the two decorative frames 25. If the cover L is movably mounted on the base plate 4 and a suitable cover body 29 is provided on the substrate 4, the lid L can be assembled very easily.
When the tip portions of the pair of long and short hinge pins 23 and 24 on each side are engaged in the corresponding shaft holes 3 of the front and rear brackets 2 by pressing 17B or the like, the above-mentioned lid can be used as in the conventional case. It becomes possible to rotatably attach L to the box body B side.

When the lid L is closed, as shown in FIG. 5, the moving body 16 in which the operation buttons 17A and 17B are integrally connected is housed in the holding block 6 and compressed. Due to the spring pressure of the coil spring 7, the area 5 of the substrate 4
Since it is urged to its centering position inside, the tips of the pair of long and short hinge pins 23 and 24 on each side are engaged in the corresponding shaft holes 3 of the front and rear brackets 2 through their respective support holes 27 and 28. In addition, a reliable blockage is guaranteed.

In this closed state, the followers 23a. Of the pair of long and short hinge pins 23.
As shown in the figure, 24a is located at the boundary between the restricting portion 22a and the non-restricting portion 22b of the opposing cam groove 22, while the other end 8b of the check lever 8 contacts the upper edge of the front bracket 2 of the box body B. Since the one end portion 8a of the moving body 16 is pressed downward against the spring pressure of the torsion spring 11, the stopper projection 18 of the moving body 16 contacts the check lever 8 as shown in FIG. It is located only above the one end 8a. Further, each bent tip portion 20a of the spring bar 20 has a corresponding guide cam 12 as shown in FIG. 3B.
The vehicle will wait at the neutral position X1.

When the lid L is rotated leftward to open the opening of the box body B in the closed state of the lid L, the right operation button 17A is held in the holding block 6. When pressed inward against the spring pressure of the compression coil spring 7 housed in the right side, as shown in FIG. 7, by the action of the restricting portion 22a of the cam groove 22 which is interlocked with the pressing movement of the operation button 17A, the right side The pair of long and short hinge pins 23 and 24 existing in the above are removed from the shaft holes 3 of the front and rear brackets 2.

When the operation button 17A is pressed, the bent tip portion 20a located on the left side of the spring bar 20 has the above-mentioned inclined shape 1 as shown in FIG. 3B.
Under the restriction of the end portion 3c, the forward path 13a of the corresponding guide cam 12 is moved in the X2 to X4 directions while contacting the reversing protrusion 14, but the bending tip 20a passes over the reversing protrusion 14. When it moves to the entrance side of the return path 13b, this time, at X5, it collides with the guide wall 15 with a resilient urging force, so that the pressing load on the operation button 17A changes and at the same time a pleasant noise is generated. . Therefore, the operator confirms the change in the pressing load with his hand and confirms the pleasant sound with his ears, so that the pair of hinge pins 23 and 24 on the right side to be opened are released from the shaft holes 3 of the front and rear brackets 2, It can be immediately confirmed that the lid L is completely immersed. The bent tip portion 20a located on the right side of the spring bar 20 moves to the left from its neutral position without performing any action, but remains on the corresponding guide wall 15. Therefore, there is no concern that a malfunction will occur during restoration.

Further, when the right operation button 17A is pushed inward, as shown in the figure, the operation button 17A is pressed.
The moving body 16 integrated with the same naturally moves in the same direction as the left operation button 17B, but each follower 23a.2 of the pair of long and short hinge pins 23.24 on the left side.
On the contrary, 4a are automatically guided into the non-restricting portions 22b of the opposing cam grooves 22 and do not approach each other, but do not move in a direction away from each other.

Therefore, a pair of long and short hinge pins 23 and 24 located on the right side to be opened are connected to the shaft holes 3 of the front and rear brackets 2.
After confirming that the lid L has been removed, the lid L is rotated slightly upward while the operation button 17A is being pressed, and as shown in FIG. 8, the upper edge of the front bracket 2 of the other end 8b of the check lever 8 is shown. Since the contact state with the part is immediately released,
As a result, the one end portion 8a of the check lever 8 is rotated upward by the spring pressure of the torsion spring 11, and the stopper projection 18 is automatically brought into contact with the side surface of the check lever 8.

As a result, the moving body 16 is locked in place against the spring pressure of the compression coil spring 7 and is prevented from returning to the centering position, while the spring bar 20 located on the left side is bent. The tip portion 20a also temporarily stops at the position X5 where it collides with the guide wall 15 described above.

Therefore, after that, if the lid L is rotated to the left with the pair of long and short hinge pins 23 and 24 engaged in the shaft holes 3 of the front and rear brackets 2 on the left side as the rotation axes, FIG. As shown in, the opening of the box body B can be opened. Moreover, the operation of opening the lid L is performed by the operation button 17
After rotating the lid L slightly while pressing A,
There is no concern that the moving body 16 will return to the original centering position together with the operation button 17A even if the hand is released.
The rotating operation of is convenient. Further, in this state, even if the operation button 17B on the left side is accidentally pressed, the pressing operation can also be prevented by the abutment of the stopper projection 18 on the one end portion 8a of the check lever 8.

When the lid L in the fully opened state is closed, the lid L is engaged with the pair of long and short hinge pins 23, 2 engaged in the shaft hole 3 of the front and rear bracket 2 on the left side.
When the lid L is tilted until it abuts against the edge of the opening of the box body B, the other end 8b of the check lever 8 facing outward from the window 10 is turned. Check lever 8 by contacting the upper edge of front bracket 2
Since the one end 8a side of the compression spring 7 is pressed downward against the spring pressure of the torsion spring 11 to release the contact state of the stopper protrusion 18 with respect to the side surface of the torsion spring 11, the moving body 16 moves the compression coil spring 7 At the same time as it returns to the centering position by the spring pressure, in conjunction with this, the pair of long and short hinge pins 23 and 24 on the right side also get the action of the restricting portion 22a of the cam groove 22 to move from their respective support holes 27 and 28. The lid L is closed by automatically engaging with the corresponding axial holes 3 of the front and rear brackets 2.

Further, at this time, the bent tip portion 20a of the spring bar 20 located on the left side is interlocked with the moving body 16 and moves in the return path 13b of the corresponding guide cam 12 at X6 to X8.
To the neutral position X of the guide cam 12.
At the same time as returning to 1, the bent tip portion 20a of the spring bar 20 located on the right side also returns to the neutral position along the corresponding guide wall 15 of the guide cam 12.

In the process in which the bent tip 20a moves along the guide wall 15 in the return path 13b, the bent tip 20a moves while being gradually pressed by the inclined shape 13c. Since the pressed state of the bent tip portion 20a is released, and this time, it comes into contact with the bottom surface of the substrate 4 with an elastic urging force and makes a pleasant sound called a rattling noise. Therefore, this time, a pair of long and short hinge pins 23 on the right side are present. -It can also be confirmed that 24 is engaged with the corresponding shaft hole 3.

On the contrary, when the lid L is rotated rightward to open the opening of the box body B, although not specifically shown, this time, the left operation button 17B is moved to the compression coil. When the lid L is pressed inward against the spring pressure of the spring 7, the lid L is paired with the pair of long and short hinge pins 23 and 24 engaging in the shaft hole 3 of the front and rear bracket 2 on the right side as described above.
It is allowed to rotate to the right around the rotation axis.

In this case, the bent tip portion 20a located on the right side of the spring bar 20 is moved to the moving body 16 this time.
In conjunction with this, the corresponding outward path 13a of the guide cam 12 moves while contacting the reversing protrusion 14, but again,
When the bent tip portion 20a moves over the reversing protrusion 14 and moves to the guide wall 15 side, the pressing load on the operation button 17B changes, and at the same time, a pleasant sound called a rattling noise is generated, whereby the operator is opened. It can be confirmed that the pair of long and short hinge pins 23 and 24 on the left side are removed from the shaft holes 3 of the front and rear bracket 2 and are sunk inside the lid L.

When the left operation button 17B is pushed slightly inward while being pushed inward, the one end 8a of the check lever 8 is also turned upward by the spring pressure of the torsion spring 11. Then, the stopper projection 18 of the moving body 16 is brought into contact with the side surface of the moving body 16, so that the moving body 16 is prevented from returning to the centering position by the spring pressure of the compression coil spring 7, and the spring bar located on the right side is prevented. The bent tip portion 20a of 20 also stops at the position where it collides with the guide wall 15 described above.

When the lid L in the open state is closed, the lid L is tilted down until it abuts against the opening edge of the box body B in the same manner as described above. Contacts the upper edge of the front bracket 2 and presses one end 8a of the check lever 8 downward against the spring pressure of the torsion spring 11 to release the contact with the stopper projection 18. As a result, the movable body 16 returns to the centering position again, and at the same time, the pair of long and short hinge pins 23 and 24 are engaged with the corresponding axial holes 3 of the front and rear brackets 2 again.

Also at this time, similarly, the bent tip portion 20a of the spring bar 20 located on the right side moves in the return path 13b of the corresponding guide cam 12 and returns to its neutral position again. Needless to say, the bent tip portion 20a of the spring bar 20 located on the left side also returns from X9 to the neutral position X1 of the guide cam 12.

In the above embodiment, for the purpose of simplifying the structure, one spring bar 20 having a pair of bent tip portions 20a and two guide cams arranged symmetrically with each other. 12 long and short hinge pins on each side
Although it is configured such that it is possible to confirm that the shafts 3 and 24 have come out of the corresponding shaft holes 3, the present invention is not limited to this, and the springs can be changed depending on the pressing direction of the operation buttons 17A and 17B. It is also optional to arrange the bar 20 and the guide cam 12 independently so as to obtain the same confirmation operation, depending on the implementation.

Also, the spring bar 20 and the guide cam 1
The confirmation means using 2 is not limited to a device that opens and closes the lid L from two directions, but can be applied to a device that can open and close the lid L only from one direction.
In this case, the spring bar 20 is fixed to the one operation button arranged on the lid L side so as to be able to be pressed or the portion connected to the operation button via the holder wall 19 while the spring bar 20 is fixed. One guide cam 12 is provided at a position facing the bar 20.

[0042]

As described above, according to the present invention, by adopting the above-mentioned configuration, after the hinge pin is disengaged from the shaft hole of the box main body by the operation of the operation button, the tip end portion of the spring bar is separated from the inversion protrusion. Since it moves to the guide wall by the elastic urging force, this causes a change in the operation load on the operation button and at the same time a pleasant sound called a rattling noise is generated. Therefore, the operator can immediately confirm that the hinge pin on the opening side has come out of the corresponding shaft hole of the box main body by confirming the change in the operating load by hand and the pleasant sound by the ear.

Further, particularly under claim 3, malfunction of the spring bar and the guide cam is eliminated, and under claim 4, it can be confirmed with a pleasant sound that the hinge pin has returned to the neutral position. Under, you can expect a well-balanced and smooth opening and closing operation and space saving due to separation.

[Brief description of drawings]

FIG. 1 is a perspective view showing a structure on a box body side of an opening / closing device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the structure of the lid side.

FIG. 3A is a perspective view of a main part showing a structure of a guide cam,
FIG. 7B is a plan view of a main portion showing the relationship between the guide cam and the bent tip of the spring bar.

FIG. 4 is a perspective view showing only a moving body partially disassembled from the back side.

FIG. 5 is a cross-sectional view showing a closed state of the lid.

FIG. 6 is a cross-sectional view of essential parts showing the relationship between the stopper protrusion and the check lever when the lid is closed.

FIG. 7 is a cross-sectional view showing a state where a right operation button is pressed.

FIG. 8 is a cross-sectional view of essential parts showing the relationship between the stopper protrusion and the check lever when the lid is opened.

FIG. 9 is a perspective view showing a state in which a lid is opened.

[Explanation of symbols]

 B Box main body L Lid 2 Bracket 3 Shaft hole 4 Substrate 5 Mounting area for moving body 8 Check lever (locking means) 12 Guide cam 13a Forward path 13b Return path 13c Inclined shape 14 Reversing projection 15 Guide wall 16 Moving body 17A Right operation button 17B Left operation button 18 Stopper protrusion (locking means) 19 Holder wall 20 Spring bar 20a Bending tip 20b Coil 22 Cam groove 23 Short hinge pin 24 Long hinge pin 27 Short hinge pin support hole 28 Long hinge pin support hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takehiro Terai 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd.

Claims (5)

[Claims] 1. A lid opening / closing device comprising an operation button for opening and closing the lid, and a hinge pin that engages with and disengages from a shaft hole on the box body side in cooperation with the operation button. A guide cam having a guide wall and a reversing protrusion located at a predetermined distance from the guide wall is provided, and on the other hand, a spring bar that is elastically urged toward the guide wall from the reversing protrusion side is provided. In the process of moving the hinge pin in the direction of coming out of the shaft hole due to the operation, the tip of the spring bar moves while being guided by the reversing projection, and after the hinge pin comes out of the shaft hole, the tip of the spring bar comes out in the reversing projection. To the guide wall by elastically urging force. 2. The lid is provided with operation buttons for opening and closing the lid, and hinge pins that engage and disengage with the shaft hole on the box body side in conjunction with the operation buttons, and the lid is directed toward both sides. In the lid opening / closing device that opens and closes, two guide cams having a guide wall and a reversing protrusion located at a predetermined distance from the guide wall are provided on one of the operation button and the lid along the moving direction of the operation button. Provided symmetrically, on the other hand, a spring bar that is elastically urged from the inversion protrusion side toward the guide wall is provided, and in the process of moving the hinge pin on one side in the direction of coming out of the shaft hole in accordance with the operation of the operation button. , The tip of the spring bar moves by being guided by the one side inversion protrusion and the hinge pin comes out of the shaft hole, and the tip of the spring bar is elastically urged from the one side inversion protrusion to the guide wall. Configured to move An opening and closing device for the lid. 3. A spring bar is provided for each of the two guide cams, and when one spring bar moves while being guided by the corresponding reversing protrusion, the other spring bar is on the corresponding guide wall. The lid opening / closing device according to claim 2, wherein the lid opening / closing device is configured so as to remain. 4. A return path is defined between the guide wall and the reversing projection, the return path having a step portion that is inclined so as to gradually press the tip end of the spring bar and releases the press at the end portion.
During the process in which the lid moves from the open state to the closed state and the hinge pin engages with the shaft hole, the tip of the spring bar moves in the return path and the tip of the spring bar moves after the hinge pin engages with the shaft hole. Is configured to contact the bottom of the stepped portion with a resilient urging force.
An opening / closing device for the lid according to any one of 1. 5. The spring bar and the guide cam are arranged on the opposite side of the lock means for locking the movable body against the biasing spring pressure for constantly biasing the moving body to the centering position. The lid opening / closing device according to any one of claims 1 to 4.