JP3139814B2 - Lid opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing device for opening / closing a cover of, for example, a console box of an automobile from both sides (a driver side and a passenger side).

[0002]

2. Description of the Related Art Conventionally, this type of apparatus has been disclosed in
As shown in Japanese Patent Application Publication No. 189249/1989, the cam comes and goes from the side end surface of the lid in conjunction with a knob (operation unit) provided on the upper surface of the lid, and when it protrudes, it is inserted into the hole at the opening edge of the console box. It has two pairs of rods to be fitted, one of the two pairs of rods is pulled into the lid according to the operating direction of the knob, and the other rods are pivoted (hinge)
There is a configuration in which a lid is opened to a predetermined side.

[0003]

However, in the above-mentioned conventional opening / closing device, the operation of two pairs of rods is operated by one knob to open in both directions.
If you push the knob in one direction with the intention of opening the lid in one direction and then return it to the opposite direction after opening the lid, the hinged rod retracts and the lid comes out of the console box. Sometimes it came off.

Further, since the movement of the knob and the movement of the rod are linked by a cam that slides, it is difficult to set the pushing force of the knob and the necessary stroke for opening the lid to appropriate values. Met.

That is, if the pressing force of the knob is uniquely determined by the specifications of the spring for urging the rod and the inclination angle of the sliding contact surface between the cam and the rod, the stroke is determined by the inclination angle of the sliding contact surface. Is set to a desired value, and by further determining the specifications (spring constant and the like) of the spring in consideration of the set inclination angle, the force for pushing the knob can also be set to a desired value.

However, with the above configuration, there is actually a considerable friction between the rod and the cam, and the resistance due to this friction varies depending on the state of the sliding contact surface.
In addition, since the greater the inclination angle is in relation to the moving direction of the knob in order to reduce the operation stroke of the knob, the larger the inclination angle becomes, it is actually difficult to set the knob operation force or the like to a constant value by design. is there.

The present invention has been made in view of such problems of the prior art, and there is little possibility that the lid is detached by opening the lid, and the operating force and the operation stroke are set. It is an object of the present invention to provide a lid opening / closing device that is easy to use.

[0008]

The gist of the present invention to achieve the above-mentioned object lies in the following items. [1] A lid opening / closing device that allows a lid (2) to be opened and closed from both right and left sides. In this state, the lid (2) is rotatably fitted into bearing holes formed at the left ends of the front and rear inner surfaces of the opening to be attached, and serves as a swing axis when the lid (2) is opened from the right side. 11a, 11b) and right and left ends of the front and rear end faces of the lid are provided so as to be able to protrude and retract with their axes coincident with each other, and are formed in bearing holes formed at the right ends of the front and rear inner surfaces of the opening to which the lid is attached in the protruding state. A pair of right hinge pins (12a, 12b) that are rotatably fitted and serve as swing axes when the lid (2) is opened from the left side, and the left hinge pin (11a) provided in the lid (2). , 11b) and the right hinge pin (1 a, biasing member (13a for urging the 12b) each projecting direction, 13b, 14a, 14
b) and the left hinge pin (11a, 11b) and the right hinge pin (12a, 12b) are slidably provided on the lid (2) in correspondence with each pair, respectively. A left operation button (15) and a right operation button (16) arranged on the right end with the sliding direction being the left and right direction of the lid, and the left operation button (1).
5) When the right operation button (16) is slid to the disengaged position, the corresponding left hinge pin (11a, 11b) or right hinge pin (12
a, 12b) so that the left operation pin (11a, 11b) corresponding to the left operation button (15) or the right operation button (16) is pulled so as to be retracted into the lid (2).
b) or the right hinge pins (12a, 12b), respectively, to connect the left hinge pins (11a, 11b).
Alternatively, while being extended from the right hinge pins (12a, 12b), the left side operation is performed after sliding along the path bending means (30a, 30b, 31a, 31b) at the left or right end of the lid (2). A lid opening / closing device, comprising: a pull cable (17a, 17b, 18a, 18b) connected to the button (15) or the right operation button (16).

[2] Pulleys (41a, 4a) are provided at the left and right ends of the lid (2) as the path bending means, respectively.
1b, 42a, 42b) and pulleys (43a, 43b, 44a, 44b) are also provided on the left operation button (15) and the right operation button (16), respectively.
Pull cables (17a, 17b, 18a, 18b) extending from the left hinge pins (11a, 11b) or right hinge pins (12a, 12b) are respectively connected to pulleys (41a, 41b,
42a, 42b) and the pulleys (43a, 43b, 44a, 44b) of the corresponding left operation button (15) or right operation button (16), respectively. The lid opening / closing device according to [1], wherein the lid opening / closing device is attached.

[3] The lid (2) is engaged with the left operation button (15) or the right operation button (16) pushed to the disengagement position, respectively, so that each button is restored to its original state. A left engaging member (19, 50) and a right engaging member (20, 60) for preventing sliding in a direction to return to the position are provided, respectively, and the left operating button (15) and the right operating button (16) are provided. Are disposed at the same position in the front-rear direction of the lid (2), and between the left operation button (15) and the right operation button (16) in the lid (2), these operation buttons (15, 16) It is slidable in the same direction as
When one of the operation buttons (15, 16) slides to the unmated position, both ends of the operation buttons (15, 16) are moved.
The lid opening / closing device according to [1] or [2], wherein a rod (21) having a length substantially in contact with the inner end surface of (6) is provided.

[4] The left engagement member (19, 50) or the right engagement member (20, 60) is located below the corresponding left operation button (15) or right operation button (16), respectively. One end or the other end is provided on the lid (2) so as to be swingable relatively upside down, and the left operation button (15) or the right operation button (16) having one end moved to the disengagement position. ) Is urged to engage with the concave portion on the lower surface, and when the lid (2) is closed, the other end side is pushed upward by an open end face to which the lid (2) is attached. The lid opening / closing device according to [3], wherein the side comprises a swinging member that swings downward to disengage the engagement with the concave portion.

[0012]

According to the lid opening / closing device of the present invention, the lid (2) is attached to the opening and two pairs of hinge pins (11a, 11b, 12) are provided.
a, 12b) are respectively fitted to the bearing holes of the opening edge (1a), and the biasing members (13a, 13b, 14) for biasing the hinge pins toward the fitting side.
The state in which the lid closes the opening is maintained by the force of a, 14b).

One of the operation buttons (15 or 1) corresponding to the hinge pin on the side opposite to the side on which the lid is to be opened
6) the urging force of the urging member (13a, 13b or 14a,
14b) and slide to the disengaged position, the hinge pin (11a, 11b or 12a, 12a,
12b) is a tension cable (17a, 17b or 1).
8a and 18b), and each is pulled into the lid body, so that the lid can be opened in a desired direction using the remaining hinge pins (12a and 12b or 11a and 11b) as a rotation axis.

In addition, as long as the other operation button (16 or 15) is not operated, the remaining hinge pin is operated by the urging means (14a, 14b or 13a, 13b) to provide a bearing hole at the opening edge to which the lid is attached. Even if an abnormal operation such as returning the one operation button to the reverse direction after the lid opening operation is performed, the lid does not come off.

The tension cables (17a, 17)
b, 18a, 18b) are left hinge pins (11a, 1a).
1b) or the path bending means (30a, 30b, 31a, 31b) at the left or right end of the lid (2) while extending from the right hinge pin (12a, 12b).
31b), the left operation button (1
5) or the side of the right operation button (16), so that the operation amount of the operation button can be controlled by the pull cable (17a, 17b, 18a) even when the direction of the hinge pin does not coincide with the sliding direction of the corresponding operation button. , 18b)
Thus, it is possible to transmit the maximum movement amount of the hinge pin. Particularly, pulleys (41a, 41a) are provided at the left and right ends of the lid (2) as the path bending means, respectively.
b, 42a, 42b), pulleys (43a, 43b, 44a, 44b) are also provided on the left operation button (15) and the right operation button (16), respectively, and the pull cables (17a, 17b, 18a, 18b)
And the corresponding pulleys (41a, 41b, 42a, 42b) as path bending means and the corresponding pulleys (43a, 43b, 44a, 44b) of the left operation button (15) or the right operation button (16), respectively. )
When it is attached to the lid (2) side in a state of being wound around, the relationship between the movement amount of each hinge pin and each operation button is 2 to 1, and each hinge pin is pulled in to release the engagement. , The corresponding operation button may be slid by half the stroke. In addition, the operation button is disposed at a corresponding one of the left and right ends of the lid (2) on the side where the corresponding hinge pin is provided, and its sliding direction is the left and right direction of the lid. The lid (2) can be opened by one-touch operation with one hand by sliding the operation button as it is with the finger of the hand hung to open the body (2).

An engagement member (19, 2) for preventing the operation button pushed to the mating release position from sliding in the return direction.
0, 50, 60), and a rod (21) having a length such that both ends substantially abut the inner end faces of the two operation buttons when one of the operation buttons slides to the disengaged position. When one of the operation buttons is operated and held in the disengaged position, the other operation button is blocked by the rod and disengaged unless the engagement member is disengaged. Cannot move in the direction to the position. Therefore, after one of the operation buttons is operated and the lid is opened, even if a force is applied to the other operation button, the hinge pin serving as the rotation axis does not retract and the lid comes off. The possibility disappears completely.

When the lid is closed, the engaging member is pushed by the open end (1b) to which the lid is attached, and the other end is pivoted to release the engagement. , 20, 51,
61), simply by closing the lid, the holding state of the operation button at the disengaged position is automatically released, and the hinge pin, which has been submerged in the lid, protrudes to open the edge of the opening. And automatically returns to the state in which the two pairs of hinge pins are fitted (the holding state).

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2 are top views of a console box to which the lid opening and closing device of this embodiment is applied.
Is a side view in which a part of the console box is cut away. The console box is made of, for example, a synthetic resin, and includes a box body 1 having a rectangular parallelepiped shape, and a lid 2 for closing an upper opening of the box body 1.

The lid opening / closing device of this embodiment includes left and right hinge pins 11a and 11b which are provided so as to be able to protrude and retract with their axes aligned with the left ends of both ends of the lid 2 in the front-rear direction (vertical direction in FIG. 1). Right hinge pins 12a and 12b which are provided so as to be able to protrude and retract with their axes aligned with the right ends of the both end faces, and compression coil springs 13a, 13b, 14a which urge these hinge pins in the projecting directions, respectively.
14b (biasing member); a left operation button 15 or a right operation button 16 slidably provided on the lid corresponding to each pair of the hinge pins;
Tension cables 17a, 17b, 18a, 18b for connecting the two hinge pins 16 and the corresponding two hinge pins, respectively, and the operation buttons 15, 1 pushed to a mating release position to be described later.
6 is slidably disposed between the left operating member 19 or the right engaging member 20 for engaging with the respective buttons 6 to prevent sliding in the return direction and the two operation buttons 15 and 16 to prevent simultaneous operation. And a rod 21 to be formed.

The left hinge pins 11a, 11b or the right hinge pins 12a, 12b are protruded from the edge 1a located before and after the upper opening of the box body 1.
Are rotatably fitted in bearing holes (not shown) formed in both inner surfaces of the two, and are arranged on the same axis.

The left operation button 15 or the right operation button 16 is provided at the left or right end of the lid 2 on the side where the corresponding hinge pin is provided (in this case, the left operation button 15 is at the left end, The operation button 16 is disposed at the right end), and the sliding direction is the left and right direction along the upper surface of the lid. That is, the lower surface of the left and right ends of the lid 2
Are formed at the same position in the front-rear direction, and concave portions 3 and 4 having a rectangular cross section extending inward along the upper surface of the lid 2, and the operation buttons 15 and 16 are slid into the concave portions 3 and 4 respectively. It is movably fitted.

Sliding shafts 22 and 23 are formed at both ends of the rear end surface of the left operation button 15 or the right operation button 16 so as to extend through the rear walls of the recesses 3 and 4.
The large diameter portions at the tips of these sliding shafts 22 and 23 are
Operation buttons 15, 16 by contacting the back wall of the
Stoppers 24 and 25 for restricting the sliding strokes of these operation buttons 15 and 16 to the outside so as not to protrude from the left and right end surfaces of the lid 2.

Compression coil springs 26 and 27 are mounted around the sliding shafts 22 and 23 and between the operation buttons 15 and 16 and the inner walls of the recesses 3 and 4, respectively. , 16 outwardly. Protrusions 28a, 28b, 29a, 29b are formed from both side surfaces of the left operation button 15 and the right operation button 16, respectively, and extend through the side walls of the recesses 3, 4, respectively. The pull cables 17a, 17b, 18a,
One end of 18b is fixed. The protrusions 28a, 28b, 29
a, 29b penetrate, the operation buttons 15, 16
An elongated hole (not shown) is formed in the sliding direction of, so that interference does not occur.

The sliding stroke of the operation buttons 15 and 16 is set to a value equal to or greater than the stroke for each hinge pin to completely fall out of the bearing hole and to sink into the lid 2. The position of the operation buttons 15 and 16 when completely removed from the bearing hole and immersed in the lid 2 is the fitting release position. Further, on the lower surface side of these operation buttons 15 and 16, concave portions 15a and 16a in which the left engaging member 19 or the right engaging member 20 are disposed are formed, respectively. Step portions 15b and 16b with which the member 19 or the right engaging member 20 is engaged are formed.

The tension cables 17a, 17b, 18a,
18b, from the left and right end sides of the lids 15, 16 so that the operation direction of the operation buttons 15, 16 for releasing the fitting of the corresponding hinge pins is the direction of pushing them into the lid 2. The operation buttons 15 and 16 are attached to the protrusions 28a, 28b, 29a, and 29b of the operation buttons 15 and 16, respectively.

That is, at the left and right ends of the lid 2,
The protrusions 28a, 28 are provided on both sides of the recesses 3, 4, respectively.
b, 29a, and 29b, located closer to the end of the lid 2,
Sliding contact pins 30a, 30b, 31a, 31b slidingly contacting the pull cables 17a, 17b, 18a, 18b, respectively.
Are provided, and tension cables 17a, 17b, 18a,
18b, these sliding contact pins 30a, 30b, 3
The cover 2 is attached to the protrusions 28a, 28b, 29a, 29b from the end side of the lid 2 by being wound around 1a, 31b.

Note that, as described above, the tension cables 17a,
The means for laying 17b, 18a and 18b is not limited to the sliding contact pin as described above, and for example, a rotatable pulley may be used. Also, the tension cables 17a, 17b, 1
The length of the left hinge pins 11a, 11b
Alternatively, the right hinge pins 12a and 12b are fitted into the bearing holes, and the left operation button 15 or the right operation button 1
1 is shown in FIG. 1 in a free state (a state in which the stoppers 24 and 25 are activated and the end surface of the left operation button 15 or the right operation button 16 coincides with the position of the end surface of the lid 2). As described above, the tension cable is set to a value such that each tension cable is tensioned without slack. Further, as the material of the tension cables 17a, 17b, 18a, 18b, various materials can be used as long as they have sufficient flexibility and low elongation. For example, steel wire, piano wire, silk thread, etc. are used. can do.

Left engaging member 19 or right engaging member 2
Numeral 0 denotes a shape in which a tension cable such as a steel wire is bent into an elongated loop shape, and both ends of the tension cable are stretched in parallel in the horizontal direction. Each end is inserted into and supported by two lateral holes 32 and 33, and swings up and down while accompanied by overall deformation.

The left end of the left engagement member 19 or the right end of the right engagement member 20 is bent downward toward the opening end face 1b of the box body 1 as shown in FIG. In the state (non-deformed state), the attachment position and the like to the projections 32 and 33 are set such that this one end extends downward from the lower surface of the lid 2 and the other inner end faces upward. Thereby, when the left operation button 15 or the right operation button 16 is pushed to a position where the hinge pin is disengaged (hereinafter referred to as a disengagement position).
Automatically, the left engagement member 19 or the right engagement member 2
0 is engaged with the step portions 15b and 16b.

The rod 21 is disposed so that both ends thereof penetrate the inner wall of the recesses 3 and 4, and is slidable in the same direction as the operation buttons 15 and 16. When one of them slides to the disengaged position, both ends have a length substantially contacting the inner end faces of these two operation buttons 15 and 16. Note that a compression spring 35 is provided between one end of the rod 21 and a wall forming the inner surface of the recess 4 to prevent the rod 21 from rattling. Here, the substantially contact length means that it is not always necessary to make contact, and at least one of the operation buttons is pushed into the disengaged position and is slid in the return direction by the engagement member. In the state where the movement is prevented, it means that the other operation button comes into contact with the end face of the rod 21 before sliding to the disengaged position.

Next, the operation of the first embodiment will be described.
First, the lid 2 is attached to the upper opening of the box body 1, and the left hinge pins 11a and 11b and the right hinge pins 12
a and 12b are fitted in the bearing holes of the opening edge 1a, respectively, by the force of the springs 13a, 13b, 14a and 14b which urge the hinge pins toward the fitting side, the left operation button 15 or the right operation button. Unless the operation button 16 is pressed, the state where the lid 2 closes the opening is maintained. (At this time, the left end of the left engagement member 19 or the right end of the right engagement member 20 is pressed into the lid 2 by contacting the outer opening end surface 1b of the box body 1, and the inner end of each left engagement member Operation button 15 or right operation button 16
Are in a state of riding on the step portions 15b and 16b, and are in a deformed state. For example, to open the lid 2 from the right side, put a hand on the right end of the lid 2 near the right operation button 16 and press and pull the right operation button 16 with the finger of this hand. Can be opened with one touch. That is, as shown in FIG.
When the right hinge pin 12a,
Since only 12b is pulled through the pulling cables 18a and 18b and pulled into the lid 2, respectively, the lid 2 can be opened from the right side using the left hinge pins 11a and 11b as the swing axis.

On the other hand, the left operation button 15 on the left end of the lid 2
When the user puts his hand on the vicinity of the button and pushes the right operation button 16 to the disengagement position with his / her finger and pulls it, similarly, only the left hinge pins 11a and 11b are pulled by the pull cables 17a and 1b.
Since the cover 2 is pulled through the cover 7b and pulled into the cover 2, the cover 2 can be opened with one touch from the left side using the right hinge pins 12a and 12b as a swing axis as shown in FIG.

At this time, for example, when the left operation button 15 is pushed to the disengaged position in order to open the lid 2 from the left side, the left engagement member 19 is restored by its restoring force from its deformed state as shown in FIG. It automatically swings counterclockwise, and the inner end of the left engagement member 19 is
Automatically engages with the stepped portion of the left side to prevent the left operation button 15 from returning. The rod 21 is provided with two operation buttons 1
Even if an external force in the pushing direction is applied to the right operation button 16, the right operation button 16
To prevent sliding. For this reason, once the lid 2 is opened to either side, the hinge pins on the opened side once retracted protrude, or the remaining hinge pins supporting the lid 2 are retracted and the lid 2 comes off. It will not be lost.

Then, to close the lid 2 to its original state,
Simply open the lid 2 to the upper opening end face 1b of the box body 1.
You just need to knock down until it touches. Then, the outer end of the engaging member on the open side is pushed by the opening end face 1b and swings,
The engagement between the inner end and the step of the operation button is released, and the cover 2 returns to the state in which the opening is closed.

That is, for example, when the lid 2 opened from the left side is closed, as shown in FIG. 3, the left side engaging member 19 has an open end face 1b of the box body 1 at its outer end.
, And swings clockwise to disengage the outer end of the left-side engaging member 19 from the step 15b. For this reason,
Left operation button 15 or left hinge pin 11a, 1
1b returns to the original position by the restoring force of the spring 13a, 13b or the spring 26, and the left hinge pins 11a, 11b
Is fitted into a bearing hole on the inner surface of the edge 1a.

As described above, with the lid opening / closing device, the lid 2 can be opened and closed with one touch on either the left or right side, and the lid 2 does not come off at this time. This is because the left operation button 15 or the right operation button 16 is provided separately on the left and right, and the possibility of pressing the opposite operation button to open the lid 2 on either side is extremely low. Even if the operation button is pressed, the operation button cannot slide to the disengaged position by the action of the rod 21 and the left engagement member 19 or the right engagement member 20 described above. 11a, 11b or right hinge pin 12
This is because there is no possibility that both of a and 12b are retracted.

In the lid opening / closing device, the required stroke (sliding distance to the disengagement position) of the left operation button 15 or the right operation button 16 can be controlled by pulling the pull cables 17a, 17b, 18a, 18b. The pressing force required to slide the left operation button 15 or the right operation button 16 is uniquely determined (equal to the stroke of each hinge pin in the above embodiment).
It is substantially equal to the restoring force of the springs 13a, 13b or the spring 26 (especially, when a pulley is used instead of the sliding contact pins 28a, 29a, etc., there is almost no resistance due to friction). For this reason, it is extremely easy to set the operation stroke and the operation force to optimal values by design.

Each hinge pin 11a, 11b, 12
When the cover 2 is opened, the buttons a and 12b and the operation buttons 15 and 16 are always stored inside and are not exposed to the outside. Further, tension cables 17a, 17b, 18 serve as operating force transmitting members for retracting the hinge.
Since the configuration uses a and 18b, the structure can be simplified and the weight can be reduced.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted. The characteristic feature of the second embodiment is that the pull cables 17a, 1
This is how to attach 7b, 18a, 18b to the left operation button 15 or the right operation button 16.

That is, the sliding contact pins 28a, 28b,
Pulleys 41a, 41b, 42a, instead of 29a, 29b,
42b are provided on the side walls of the concave portions 3 and 4, and the protrusions 28 on the side surfaces of the left operation button 15 or the right operation button 16 are provided.
a, 28b, 29a, 29b also have pulleys 43a, 43
b, 44a and 44b are attached. The end of the pull cable 17a, 17b, 18a, 18b on the left operation button 15 or right operation button 16 side is wound around these pulleys as shown in FIG.
It is fixed to.

Next, regarding the structure of the engaging members, the engaging members 50 and 60 of the second embodiment are composed of three links. That is, the right engagement member 60 is
An oscillating link 61 attached to a position below the recess 4 in the lid 2 so as to be vertically oscillatable;
A contact link 62 which is swingably connected to an outer end of the swing link 61 and whose tip is freely projectable from the lower surface of the lid 2 as the swing link 61 swings, and an inner end of the swing link 61 And an engagement link 63 whose tip is freely projectable into the recess 4 as the swing link 61 swings, and the swing link 61 is urged clockwise by a spring 64. It was done.

The left engaging member 50 also includes a swing link 51, a contact link 52, and an engagement link 53, and the swing link 51 is urged in a counterclockwise direction by a spring 54. It is a thing.

With the lid opening / closing device of the second embodiment,
By the same one-touch operation as in the first embodiment, the lid 2 can be opened on either the left or right side, and the same effect can be obtained. The operation stroke of the left operation button 15 or the right operation button 16 required for opening is half that of the first embodiment. That is, as described above, as a result of the tension cables being drawn and attached, the relationship between the movement amount of each hinge pin and each operation button becomes two-to-one. You only have to press the corresponding operation button for half the stroke.

The engaging members 50 and 60 do not operate with deformation like the left engaging member 19 or the right engaging member 20 described above. As the swing links 51 and 61 swing, the engagement link 5 is engaged with the step portions 15b and 16b on the lower surface of the left operation button 15 or the right operation button 16 that has come to the disengaged position.
The tips of 3, 63 are engaged. And at the time of lid closing operation,
The contact links 52, 62 abut against the opening end faces of the box body and are pushed, and as the swing links 51, 61 swing, the engagement links 53, 63 descend to release the engagement with the operation button. You.

In the second embodiment, the stopper for restricting the stroke of the left operation button 15 or the right operation button 16 so that the left operation button 15 or the right operation button 16 does not protrude from the end face of the lid 2 is provided by the left operation button 15 or the right operation button 16. The side walls of the concave portions 3 and 4 of the lid 2 that contact the protrusions 28a, 28b, 29a and 29b on both sides fulfill this function.

[0046]

According to the lid opening / closing device of the present invention, the lid can be opened and closed on one of the right and left sides with one touch, and the lid is not detached at this time. In addition, it is extremely easy to set the operation stroke and the operation force to respective optimum values by design, and the appearance is improved because the hinge pins and the operation buttons are not exposed to the outside. Further, since the pulling cable is used as the operating force transmitting member for retracting the hinge, the structure can be simplified and the weight can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a plan view showing a first embodiment of the present invention.

FIG. 3 is a side view showing the first embodiment of the present invention.

FIG. 4 is a side view showing the first embodiment of the present invention.

FIG. 5 is a horizontal sectional view showing a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional view showing a second embodiment of the present invention.

FIG. 7 is a perspective view showing an engagement member according to a second embodiment of the present invention.

[Explanation of symbols]

 2 lid 11a, 11b left hinge pin 12a, 12b right hinge pin 13a, 13b, 14a, 14b urging member 15 left operation button 16 right operation button 17a, 17b, 18a, 18b pull cable 19, 50 ... left engaging member 20, 60 ... right engaging member (19, 20, 51, 61 ... swing member) 21 ... rod 24, 25 ... stopper

Claims (4)

(57) [Claims] 1. A lid opening / closing device which enables a lid to be opened and closed from both left and right sides, wherein the lid is provided at the left end on both front and rear end faces of the lid so as to be able to protrude and retract with their axes aligned with each other. A pair of left hinge pins, which are rotatably fitted into bearing holes formed at the left ends of both front and rear inner surfaces of the opening to be attached, and serve as pivot axes when the lid is opened from the right side; At the right end of the surface, it is provided so as to be able to come and go with the axes coincident with each other, and in the protruding state, it is rotatably fitted into bearing holes formed at the right end on both front and rear inner surfaces of the opening to which the lid is attached, and the lid is left A pair of right hinge pins serving as a swing axis when the cover is opened from the front, a biasing member provided in the lid body for biasing the left hinge pin and the right hinge pin in a protruding direction, respectively, and the left hinge pin and the right hinge pin A left-hand operation button and a right-hand operation button which are slidably provided on the lid so as to correspond to the pairs, respectively, and are disposed at the left or right end of the lid with the sliding direction being the left-right direction of the lid. When the left operation button or the right operation button is slid to the disengaged position, the left operation button or the right operation button is pulled so that the corresponding pair of the left hinge pin or the right hinge pin is retracted into the lid. The right operation button and the corresponding left hinge pin or right hinge pin are connected to each other. A pull cable connected to the left operation button or the right operation button. Location. 2. A pulley is provided on each of the left and right ends of the lid as the path bending means, and a pulley is also provided on each of the left operation button and the right operation button, and extends from the left hinge pin or the right hinge pin. In a state where the pulling cable is wound around the pulley as the corresponding path bending means and the pulley of the corresponding left operation button or right operation button, respectively.
2. The lid opening / closing device according to claim 1, wherein the lid opening / closing apparatus is attached to the lid. 3. The lid is engaged with the left operation button or the right operation button pressed to the disengagement position, respectively, to prevent the buttons from sliding in the direction of returning to the original position. A left engaging member and a right engaging member are provided, respectively. The left operating button and the right operating button are arranged at the same position in the front-rear direction of the lid. The operation buttons are slidable in the same direction as the operation buttons. When one of the operation buttons slides to the disengaged position, both ends of the operation buttons have a length substantially contacting the inner end surfaces of the operation buttons. 3. The lid opening / closing device according to claim 1, wherein a rod is provided. 4. The left engagement member or the right engagement member is provided below the corresponding left operation button or right operation button so that one end or the other end can swing relatively upside down. A lid is provided on the lid, one end of which is urged to engage with a concave portion on the lower surface of the left operation button or the right operation button that has moved to the unmated position, and the lid is closed when the lid is closed 4. The lid opening / closing device according to claim 3, wherein the other end side is pushed upward by an opening end face to be attached, and the one end side is made of a swinging member that swings downward to be disengaged from the recess. .