JPS635542B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a swingable lid opening/closing device.

The lid, which opens and closes by swinging, must be held in the closed position. There are various types of lids that can be opened and closed by swinging, such as relatively small lids for facsimile machines, relatively large lids such as those for library doors, light lids, and heavy lids.

These lids are held in the closed position using a click stop method, a magnet, a combination thereof, or an appropriate holding means, and the lids placed in the closed position are Most of them are designed to be opened by holding a grip such as a handle.

However, depending on the manner in which the lid is attached, that is, the direction in which the lid swings, it may become difficult to open and close the lid, or the handle may protrude above the plane formed by the lid and its support. Also, there is a concave portion for a handhold, which has the disadvantage that the flat surface cannot be used effectively.

One of the mechanisms that makes it easy to open and close the lid is
There is a push-pull mechanism. This mechanism combines a lever, a cam, and a magnet.
The first push locks the lid in the closed position, and the second push releases the lock and opens the lid. However, in this mechanism, there is a problem in that the above-mentioned locking is not released unless the pushing force on the lid body is quickly released when the lid body is pressed for the second time, in other words, unless the hand pushing the lid body is quickly released.

Referring to FIG. 1, a swinging opening/closing lid will be described using a facsimile machine as an example. A document insertion slot 2 is formed on the top surface of the facsimile apparatus main body 1 . A document (not shown) inserted into the insertion slot 2 is sent to the processing section 3 and then ejected onto the paper ejection table 4.

The processing section 3 is provided with a reading device and a transport device (not shown), and its upper part can be opened and closed with an opening/closing lid 5. This opening/closing lid 5 is
It is opened and closed when removing the jam paper or wiping the contact glass in the processing section 3, but when the operator is standing in the normal position, the symbol 5A is opened and closed.
As shown in , opening the lid is an ergonomically difficult operation.

Furthermore, if a protruding handle is provided on the top surface of the opening/closing lid 5, it will become an obstacle when taking out the document discharged onto the paper discharge table 4. Additionally, the lid retains it in the closed position. When engaging and disengaging from the means, it is desirable to require only a light operating force and to prevent the occurrence of scratches due to sliding contact with the lid or its support.

The present invention covers the above, and includes:
To provide a lid opening/closing device which eliminates a handle, positions the opening/closing lid and the surface of the device on the same plane, and allows the lid to be opened and closed with a single touch.

The object of the present invention is to be able to swing freely between a first direction of closing and a second direction of opening;
A lid that has an opening habit; a support that swingably supports the lid; and a support that is provided on the support or the lid and that engages and disengages from an engaging portion provided on the lid or the support. a locking lever that is movable in a direction and holds the lid in the closed position after having swung to the closed position; and a direction in which the lever is engaged with the engaging portion with respect to the locking lever. a first spring that provides a movement habit, and a roller that is provided on the support body or the lid body, is movable in the same direction as the locking lever, and is rotatably provided on the abutting end. The roller has a tendency to move in a direction in which it comes into contact with one side of the lid or support, and when the roller comes into contact with the lid or support, it is moved in a direction away from the lid or support. a charge lever; a second spring that imparts the movement behavior to the charge lever and is biased when the charge lever is moved away from the lid or support; and a second spring provided on the support or the lid; a third spring that is movable in the same direction as the locking lever and has a movement behavior opposite to that of the locking lever; When pushed by the support, it engages with a stopper provided integrally with the support or the lid to prevent its movement, thereby accumulating the third spring and causing the locking lever to a release lever that, when engaged with the lid or support, is disengaged from the stopper and biases the locking lever in a direction away from the lid or support; the release lever and the charge lever; When the charge lever is moved in a direction away from the lid or the support, the energy is stored so as to overcome the elasticity of the first spring. for moving the release lever in a direction in which the locking lever is separated from the lid or the support when the locking lever is disengaged from the lid or the support in a biased state; This is achieved by a lid opening/closing device comprising a third spring.

According to the present invention, when the lid body is swung to the closed position, it is locked by the locking lever at that position, and when the lid body is pushed in this state, the locking lever is retracted from the locking position. The lid is designed to open according to its habit. In other words, it is a so-called push-push mechanism, but when you want to open the lid, you can open and close it with an extremely simple operation without having to quickly remove your hand from the lid.

In addition, by providing a rotatable roller on the contact end of the charge lever, the lid can be more smoothly engaged and disengaged, and the lid can be opened and closed with light operating force, while also preventing scratches on the lid and its support. Don't let it happen.

Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

In FIG. 2, the opening/closing lid 5 is pivotally attached to a support 7 by a support shaft 6, and the top surface 5a of the lid 5 and the top surface 7a of the support 7 are located on substantially the same plane. are doing. A tension spring 8 is hung between the lid 5 and the support 7, and the lid 5 is given an opening tendency as shown by the reference numeral 5A.

The side surface 5b of the lid 5 is formed with an engaging portion 9 into which a locking lever, which will be described later, is fitted and engaged. On the side wall 7b of the support body 7, which faces the side surface 5b,
A window hole 10 is formed through which a locking lever and a charge lever, which will be described later, move in and out.

A substrate 11 is fixed to the side wall 7b with screws (not shown) (see FIGS. 3 and 5). In FIGS. 3 to 6, the substrate 11 includes
A support shaft 12 is fixedly planted, and a lock lever 13, a release lever 14, and a charge lever 15 are each fitted into the shaft 12 so as to be able to swing freely.

The locking lever 13 is located between the bent portion 11a of the base plate 11 and the E-ring 16, and also between the release lever 1
4 and charge lever 15 are the same as E ring 16 and 17
Movement in the axial direction is restricted between the two.

The locking lever 13 is fitted into the support shaft 12 through a long hole 13a bored in the longitudinal direction, and is movable in the longitudinal direction. In addition, the above-mentioned locking lever 1
A first spring 18 is hung between the lower end 13b of the window hole 1 and the lower end of the bent portion 11a, and the locking end 13c of the lever 13 is connected to the window hole 1.
It gives a rocking habit in the direction of protruding from 0.
The first spring 18 also biases the locking lever 13, which is movable within the elongated hole 13a, in the same direction as the direction in which the lid is closed. A locking step portion 13d is formed at the locking end 13c. Further, the locking lever 13 is formed with a stepped portion 13e that engages with and disengages from a bent arm 14b of a release lever 14, which will be described below.

The release lever 14 has a long hole 14a connected to the support shaft 12.
It is fitted into and is movable in the longitudinal direction (in the vertical direction in FIGS. 3 and 4). The bent arm 14b at the upper end of the release lever 14 extends toward the board 11, and its lower edge abuts against the stepped portion 13e of the locking lever 13 and the upper edge of the bent portion 11a. .

A stopper 11b is formed on the upper edge of the bent portion 11a of the substrate 11.

The upper end 15a of the charge lever 15 has a support shaft 1.
A roller 20 is rotatably supported by 9. A bent arm 15b formed on the back of the lever 15 extends from the back of the locking lever 13 to the base plate 11. Bent portion 15b and substrate 11
A second spring 21 is stretched between the roller 20 and the charge lever 15.
A swinging behavior is provided in which a portion of the window 10 is made to protrude from the window hole 10.

The bending arm 15b and the bending arm 1 of the release lever
4b, a third spring 22 is stretched between the locking lever 1 and the release lever 14.
It gives a rocking habit in the opposite direction to that of 3.

The third spring 22 causes the release lever 14 to
The bending arm 14b is given a downward movement habit as well as a swinging habit, and the bent arm 14b is brought into contact with the upper edge of the bent portion of the substrate 11. Due to this movement behavior of the release lever 14, the locking lever 13 is also moved downward by pushing its stepped portion 13e with the bending arm 14b.

The charge lever 15 is connected to the second spring 21.
Due to the elasticity of the locking lever 13, its back is pushed by the bending arm 15b of the charge lever 15, and the release lever 14 is pushed by its bending arm 14b by the side 13f of the locking lever 13. By doing so, the roller 20 and the locking end 13c are caused to protrude from the window hole 10 in a counterclockwise direction (in FIG. 3) around the support shaft 12, and are positioned in the swinging trajectory of the opening/closing lid, which will be described later. It is being swayed to make it happen. The swinging of each lever is regulated by the bending arm 14b of the release lever 14 abutting against the back surface 11c of the board 11. Bent arm 14b and back side 1
1c is shown spaced apart.

Now, as shown in FIG. 3, with the roller 20 and the locking end 13c protruding from the window hole 10, the opening/closing lid 5 is swung in the first closing direction as shown in FIG. When the side surface 5b of the lid 5 is moved, the roller 20 located on the swinging trajectory
and push the locking end 13c. As a result, the locking lever 13 and the charge lever 15 are caused to swing clockwise about the support shaft 12 against their natural behavior. When the charge lever 15 swings, the roller 2
0 is rolled by the side edge 5b of the lid, reducing the frictional resistance between the lid and the charge lever. When both levers swing, the release lever 14 engages its bent arm 14b with the stopper 11b of the base plate 11. The locking lever 13 is given a counterclockwise swinging habit by a first spring 18.

Therefore, the second and third springs 21 and 22 are loaded with force as the charge lever 15 swings.

In FIG. 8, the lid 5 is moved to the position shown by the solid line (see FIG. 7), in other words, the locking lever 13
From a position where the and the engaging part 9 of the lid 5 are not facing each other,
When the engaging portion 9 is swung to the position shown by the solid line, the engaging portion 9
The locking end 13c of the locking lever 13 is fitted into the locking end 13c of the locking lever 13. When the locking lever 13 is fitted into the engaging portion, the roller 20 of the charge lever 15 moves as shown in FIG.
It is in contact with the side surface 5b of the lid 5.

When the pressing force on the lid 5, which has been swung to the position shown by the chain line in FIG. 8, is released, the lid 5 swings due to its opening behavior as shown in FIG. engages with the locking end 13c of the locking lever 13 from below. When the lid 5 engages with the locking lever 13, the lid 5 moves the lever 13 upward within the range of the elongated hole 13a. When the locking lever 13 moves upward, its stepped portion 13e engages with the bent portion 14b of the release lever 14, causing the lever 14 to move upward against the elasticity of the third spring 22. . At this time, the third spring 22 is energized.

Since the release lever 14 that has been moved upward is disengaged from the stopper 11b, it is swung clockwise by the elasticity of the third spring 22, and the bending arm 14b is moved to one side of the locking lever 13. It is brought into contact with the side 13f. And the third spring 22 is stored in energy.
The elasticity is designed to overcome the elasticity of the first spring 18, and gives the locking lever 13 a tendency to swing clockwise. However, since the locking stepped portion 13d of the locking lever 13 engages with the engaging portion 9 of the lid 5, the swinging of the lever 13 is restricted.

The above is the first operation of swinging the lid 5 to engage the locking lever 13, and the lid 5 is finally held in the closed position.

To open the lid that has been closed as described above, the following second operation is performed. As shown in FIG. 10, when the lid 5 is pushed in the first closing direction, the lower edge 9a of the engaging portion 9, which has been engaged with the locking step 13d of the locking lever 13, descend. Locking lever 13 released from locking by engaging portion 9
is caused by the elasticity of the stored third spring 22 transmitted via the release lever 14 to release the support shaft
2 in the clockwise direction, and the locking end is retracted from the rocking trajectory of the lid 5.

The locking lever 13 and the release lever 14, which are swung by the third spring 22, are also moved downward by the third spring 22, and the bent arm 14b of the release lever is moved downward by the same spring 22.
is brought into contact with the upper edge of the bent portion 11a of the substrate 11.

Then, after the locking lever 13 has retreated from its swinging trajectory, the lid 5 releases the pressing force thereon, and the lid 5 opens due to its opening habit.
The lid is swung in the second direction to the position shown by reference numeral 5A in FIG. 2, at which point the lid is opened. When the lid opens due to its habit, the lid moves while rotating the roller 20, so that the lid opens smoothly into the second
swing in the direction of.

On the other hand, when the lid 5 is opened, the charge lever 15 is freed from the pressing force against the roller 20.
Due to the elasticity of the second spring 21, the roller 20 swings back to the position shown in FIG. When the charge lever 15 swings back, its bent arm 15b presses the back of the locking lever 13 and pushes the same lever 13 in the same direction, causing the locking end to move as shown in FIG. Position the lid 5 in the swinging trajectory. When the locking lever 13 swings, the release lever 14 is pushed and moved, and its bent arm 14b slides on the upper edge of the bent portion 11a of the base plate 11 and overcomes the stopper 11b.

As explained above, when the lid is swung to the closed position by the first operation, the lid is locked by the locking lever and held in the closed position, and the lid, which is in the closed position, is pressed again. According to the present invention, when the locking lever is retracted by the second movement and the lid is opened, the side surface of the lid comes into contact with the roller and rolls it. According to the present invention, the opening/closing operation of the lid is extremely simple. .

Next, other embodiments of the present invention are shown in FIGS. 11 to 1.
This will be explained based on FIG.

In FIGS. 11 to 15, a support shaft 31 is fixedly planted on the bent portion 30a of the substrate 30,
A locking lever 32, a release lever 33, and a charge lever 34 are fitted into the shaft so as to be able to swing freely. Each of these levers is restricted from moving in the axial direction by an E ring 35.

The locking lever 32 is movable in the longitudinal direction by fitting the elongated hole 32a into the support shaft 31. A bent arm 32b of the locking lever 32 extends toward the charge lever 34, and this arm 32b includes:
A first spring 36 is connected between the bent arm 30b of the substrate 30 and the bent arm 30b.
is being passed over. The first spring 36 has its locking end protruding from the window hole 10 with respect to the locking lever 32, and is arranged in the same direction as closing the lid 5 with respect to the locking lever which is movable within the range of the elongated hole 32a. It is biased in the direction. A locking step 32d is formed at the locking end 32c of the locking lever 32. Also,
A stepped portion 32e is formed on one side of the lever 32. A bent arm 33b of a release lever 33, which will be described later, is engaged with and disengaged from a stepped portion 32e.

The release lever 33 connects the elongated hole 33a to the support shaft 3.
1 and is movable in the longitudinal direction. The bent arm 33b extends toward the board 30,
It passes over the stepped portion 32e of the locking lever 32 and comes into contact with a notch 30c as a stopper formed on the upper edge of the bent portion 30a of the board.

The free end 34a of the charge lever 34 has a shaft 3
7, a roller 38 is rotatably mounted. The charge lever 34 includes the above-mentioned release lever 3.
3 and the back of the locking lever 32, and a bent arm 34b extending toward the base plate 30 is formed. The charge lever 34 includes a tip 31 of the support shaft 31.
A second spring 3 consisting of a torsion spring wound around a
One end 39a of 9 is locked. second spring 3
The other end 39b of 9 is the bent arm 30b of the substrate 30.
It is locked to. Therefore, charge lever 34
is given a swinging behavior that positions the roller 38 in the swinging locus of the lid 5, which will be described later.

Between the bending arm 34b of the charge lever 34 and the bending arm 33b of the release lever 33, there is a third
The spring 40 is stretched over the release lever 33.
However, the locking lever 32 has a swinging behavior opposite to that of the locking lever 32.

Then, as shown in FIG. 12, the locking lever 3
2 is moved downward by the elasticity of the first spring 36 and is swung in a direction that causes the locking end 32c to protrude from the window hole 10, and the release lever 33 is moved downward by the elasticity of the third spring 40. At the same time, it is swung clockwise around the support shaft 31 so that its bent arm 33b abuts against the stopper 30d, and the charge lever 34 causes the roller 38 to protrude from the window hole 10 due to the elasticity of the second spring 39. It is being swung in the direction of The swinging of each lever is such that the bending arm 33b of the release lever comes into contact with one side 30e of the board 30, and the bending arm 33b contacts one side 30e of the locking lever.
2f collide with each other, and the bending arm 34b of the charge lever engages with the back of the locking lever, thereby stopping the locking lever. Note that in FIGS. 12 and 15, for convenience of illustration, the bent arm 33b of the release lever 33 and the one surface 30e of the board 30 are shown separated from each other.

Now, as shown in FIG. 12, in a state where the locking end 32c of the locking lever 32 and the roller 38 of the charge lever 34 are protruding, as shown in FIG. 16, the lid 5 is in the first closing direction. When the lid 5 swings, the side surface 5b of the lid 5 pushes the roller 38 and the locking end 32c, which are located on the swing trajectory, against their respective habits. As a result, the locking lever 32 and the charge lever 34 are swung clockwise about the support shaft 31. Charge lever 34
When the rollers 38 are oscillated, the rollers 38 are rotated. When both levers swing, the release lever 33 engages its bending arm 33b with the stopper 30d of the base plate 30.

The locking lever 32 is biased counterclockwise by the first spring 36, and the third spring 40 is biased toward the release lever 3.
3 and the charge lever 34, and the second lever 39 is energized by the charge lever 34, respectively.

In FIG. 16, when the lid 5 is pushed from the position shown by the solid line (the position where the locking lever 32 and the engaging part 9 are not facing each other) to the position shown by the chain line, the lid 5 is engaged with the engaging part 9. The toe 32c is inserted. The charge lever 34 is held in the position where the second spring 39 is charged because the roller 38 abuts against the side surface of the lid 5.

The lid 5 has been swung to the position shown by the chain line in Fig. 16.
When the pressing force is released, the lid 5 swings due to its opening habit as shown in FIG.
c from below. When the lid 5 engages with the locking lever 32, the lid 5 moves the lever 32 upward within the range of the elongated hole 32a. When the locking lever moves upward, the stepped portion 32e of the locking lever becomes the release lever 33.
The lever 33 is engaged with the bent arm 33b of the third lever 33b.
is moved upward against the elasticity of the spring 40. At this time, the third spring 40 is further charged.

Since the release lever 33 that is moved upward is disengaged from the stopper 30d, it is swung clockwise by the elasticity of the third spring 40, and the bending arm 33b is moved to one side of the locking lever 32. 32f. The stored elasticity of the third spring 40 is designed to overcome the elasticity of the first spring 36, so that the locking step 32d moves clockwise with respect to the locking lever 32. It gives a rocking habit in the direction of escape from the lid 5. However, the locking lever 3
Since the stepped portion 32d of the second lever 32 is engaged with the engaging portion 9 of the lid 5, the swinging of the lever 32 is restricted.

The above is the first operation of swinging the lid 5 in the first closing direction and engaging the locking lever 32.
This means that the lid 5 is locked and held in the closed position.

To open the lid in the closed position shown in Figure 17,
A second operation described below is performed. When a pressing force is applied in the first direction to the lid 5 in the state shown in FIG. 17, it swings as shown in FIG. 18. Then, the lower edge 9a of the engaging portion 9, which has been engaged with the stepped portion 32d of the locking lever 32, descends, and the lever 3
Release the restriction on 2. The locking lever 32 released from the locking by the engaging portion 9 is released from the locking lever 3
By the stored elasticity of the third spring 40 transmitted through the bending arm 33b of No.
The locking end is swung clockwise around , and the locking end is retracted from the swiveling trajectory of the lid 5.

The locking lever 32 and the release lever 33, which are swung by the third spring 40, are pulled down by the first spring 36 and the third spring 40, respectively, and the lever 32 is lowered within the range of the elongated hole 32a. Also, the lever 33 connects its bending arm 33b to the bending part 3 of the board.
It is located in contact with the upper edge of 0a.

Then, after the locking lever 32 has retreated from its swinging trajectory, the lid 5 will swing to the second opening direction due to its opening behavior when the pressing force on it is released. It opens as shown by reference numeral 5A in the figure. The lid 5, which swings in the second direction, makes its side surface 5f contact the roller, and swings while rolling the roller.

On the other hand, when the lid 5 is opened, the pressure on the roller 38 is removed from the charge lever 34.
Due to the elasticity of the second spring 39, it swings back to the position shown in FIG. 12, and the roller 38 is positioned in the swing locus of the lid 5. When the charge lever 34 swings back, its bending arm 34b presses the back of the locking lever 32, and one side 32f of the lever 32 presses the bending arm 33b of the release lever 33, causing the same bending. arm 3
3b is made to climb over the stopper 30d, and both are returned to the swinging position as shown in FIG.

In the embodiments of the present invention described above, the locking lever, the release lever, and the charge lever are provided in such a manner that they swing as the lid is opened and closed. will be explained below.

19 to 22, guide pieces 51 and 52 are formed on the upper and lower edges of the substrate 50, respectively, by bending them in the same direction. A spring locking portion 52a is provided on one side of the guide piece 52. Further, a support shaft 53 is fixedly planted on the substrate 50.

A locking lever 54, an E-ring 55, a release lever 56, a spacer 57, a charge lever 58, and an E-ring 59 are fitted into the support shaft 53 in order from the substrate.

The locking lever 54 is loosely fitted into the support shaft 53 through a long hole 54a formed in the longitudinal direction, and its lower edge 54b is placed on the guide piece 52 so as to slide in the longitudinal direction. It is set freely.
A step portion 54c and a spring hook portion 54d are formed on the upper edge of the locking lever 54.

The distal end of the locking lever 54 is bent at an angle to form a locking end 54e, and the lower end thereof has a locking step 54f that engages and disengages with the engaging portion 9 of the lid 5, which will be described later. It is formed. The upper end of the locking end 54e is bent to form a stopper 54g.

A first spring 60 is stretched between the spring hanging portion 54d and the guide piece 51, and positions the locking end 54e in the swinging trajectory of the lid with respect to the locking lever 54. Orientation movement behavior and support axis 53
centering on the lower edge 54b of the guide piece 52.
A sliding behavior is provided in the direction of contact (the same direction as the direction in which the lid body 5 is closed). Locking lever 54
The above-mentioned movement behavior is regulated by the elongated hole 54a, and swinging is allowed only between the pair of guide pieces 51 and 52.

The release lever 56 loosely fits into the support shaft 53 through an elongated hole 56a formed in the longitudinal direction, and its lower edge 56b abuts on the guide piece 52, so that it is movable within the range of the elongated hole 56a. It is also swingable. A bent arm 56c is formed on the upper edge of the release lever 56, which is bent toward the side of the locking lever 54 and engages with and disengages from the stepped portion 54c of the lever 54. On the lower edge of the same lever 56,
A spring hook portion 56d and a step portion 56e that engages with and disengages from the front edge of the guide piece 52 are formed at the distal end thereof.

The charge lever 58 has a long hole 58a formed in the longitudinal direction that is loosely fitted into the support shaft 53, and a pair of bent pieces 58b and 58c, which have the upper and lower edges of the front end bent toward the release lever 56, are connected to the pair of bent pieces 58b and 58c. By fitting loosely between the guide pieces 51 and 52, it is movable in the longitudinal direction. A roller 62 is rotatably supported at the front end of the charge lever 58 by a support shaft 61. Same lever 5
8 has a rear end edge 54 of the locking lever 54.
A bent arm 58d is formed that extends to a position reaching i. In addition, at the rear end of the lower edge of the same lever 58,
A spring hook 58e is formed with a slightly bent tip.

A second spring 63 is stretched between the spring hooking portion 58e of the charge lever 58 and the spring hooking portion 52a of the guide piece 52, and the roller 62 is attached to the lid 5, which will be described later. It gives a movement habit in the direction of positioning on the swing trajectory.

In addition, the spring hook portion 58e and the release lever 5
A third spring 64 is stretched between the spring hanging portion 56d of the locking lever 56 and the third spring 64, which gives the lever 56 a movement behavior in the opposite direction to that of the locking lever, and also causes the lower edge 56b to move in the opposite direction. A rocking behavior is provided in the direction of contacting the guide piece 52.

The movement habits of the locking lever 54 and the charge lever 58 are regulated by one end of each elongated hole 54a, 58a abutting against the support shaft 53, but the movement habit of the release lever 56 is regulated by the lever 56.
The stepped portion 56e of the guide piece 52 serves as a stopper.
It is regulated by engaging with the front edge of.

Now, as shown in FIG. 20, the locking lever 54
When the locking end of the lid 5 and the roller 62 of the charge lever 58 are located in the rocking trajectory of the lid, the lid 5
When it swings to the first direction, which is the closing direction,
As shown in FIG. 23, the locking end 54e and the roller 62 are pushed to the right in the figure by the side surface 5b of the lid indicated by a solid line. At this time, the roller 62 is rolled by the side surface 5b to reduce the friction between the charge lever and the lid.

The locking lever 54 that is pushed has its elongated hole 54a.
is guided by the support shaft 53 and the lower edge 54b by the guide piece 52, and the first spring 60 is loaded. In addition, the charge lever 58 has its elongated hole 58a connected to the support shaft 53, and the upper and lower bent pieces 58
b and 58c are guided by the guide pieces 51 and 52, respectively, and moved, and the second spring 63 is charged.

When both levers 54 and 58 are pushed, the release lever 56 moves its stepped portion 56e toward the guide piece 52.
As the charge lever 58 moves, a third spring 64 stretched between them is biased. This stored third spring 6
The elasticity of the first spring 60 is designed to overcome the elasticity of the first spring 60 when it is not loaded.

In FIG. 23, when the lid 5 is pushed from the position shown by the solid line to the position shown by the chain line, the locking lever 54
is moved to the left by the elasticity of the first spring 60, and its locking end 54e is fitted into the engaging portion 9.
Thereafter, when the pressing force on the lid 5 is released (released), the lid 5 swings in the second direction, which is the opening direction, according to its habit. At this time, the swinging lid 5
The lower edge 9a of the engaging portion contacts the lower edge 54b of the locking lever 54, and the lever 54 is moved to the support shaft 53.
With the stopper 54g in the center, the upper guide piece 5
1 (see Figure 24).

When the locking lever 54 swings, its upper edge engages the bending arm 56c, causing the release lever 56 to
The step portion 56e and the guide piece 52 are swung in a direction to disengage the guide piece 52. When the release lever 56 is released, the lever is moved by the elasticity of the third spring 64.
It moves to the right while being guided by the support shaft 53 and the upper edge of the locking lever 54.

When the release lever 56 moves, its bending arm 5
6c engages with the stepped portion 54c to move the locking lever 54 to the right against the elasticity of the first spring 60. However, when the locking lever 54 moves, the stepped portion 54f of the locking end 54e
This is prevented by engaging a.

Therefore, the lid 5 is held in the closed position by having its engaging portion 9 locked by the retractable locking lever 54. The first operation is to swing the lid to the closed position and engage it with the locking lever.

As shown in FIG. 24, in order to open the lid 5 placed in the closed position, the lower edge 9a of the engaging portion 9 must be placed at the stepped portion 54 as shown by the chain line with respect to the lid 5 in the solid line position.
A second operation is performed in which a pressing force is applied to swing the device to a position where it is completely separated from f.

When the lid 5 is swung as shown by the chain line in FIG. The stepped portion 54c is pushed by the bending arm 56c of the release lever 56, which is receiving the elastic force of the spring 64, and is moved to the right as shown in FIG.

The movement of the locking lever 54 is based on the rear edge 5 of the locking lever 54.
4i collides with the bent arm 58d of the charge lever 58 and is stopped. In this position, the step 54f of the locking end 54e of the locking lever 54
has retreated from the rocking trajectory of the lid 5.

Therefore, due to its own opening habit, the lid 5 swings in the second direction while rotating the roller 62 that is in contact with the side surface of the lid 5.
It is located as shown.

When the lid 5 is opened, the locking lever 54 is swung counterclockwise by the first spring 60 to bring its lower edge 54b into contact with the guide piece 52, and also,
The release lever 56 has its stepped portion 56e in contact with the guide piece 52.

When the lid 5 is opened, the charge lever 58 is released from its pushing action against the roller 62.
moves to the left in FIG. 25 in accordance with the elasticity of the charged second spring 63. Also,
As the charge lever 58 moves, the locking lever 54 and the release lever 56 also move in the same direction, and the respective levers are positioned as shown in FIG. 20. That is, the locking lever 54 has its locking end 54
e, and the charge lever 58 positions the roller 62 on the rocking locus of the lid 5, respectively.

In the embodiment described above, the contact portion of the charge lever that contacts the lid is formed of a roller, which reduces the degree of sliding contact of the lever with the lid and prevents damage to the lid.

Next, another embodiment of the present invention will be described with reference to FIGS. 26 to 38. In this embodiment, a lock lever and a charge lever are attached to the lid.

26 to 31, FIG. 26 is a perspective view, FIG. 27 is a plan view, FIG. 28 is a front view, FIG. 29 is a left side view of FIG. 28, and FIG.
The right side view of the figure, FIG. 31, is a sectional view of FIG. 29.

The board 80 has mounting portions 80a, 80b and bearings 80c, 80 formed by bending opposing edges.
It has a box shape consisting of d and 80e. Guide shafts 81 and 82 are supported between the bearing 80c and the bearings 80d and 80e. Above guide shaft 8
1 and 82, a lock lever 83, a release lever 86, and a charge lever 87, as shown in FIG. 46, are slidably supported.

A locking lever 83 is inserted into the hole 8 of the guide shaft 81.
3a and the elongated hole 83b (see Fig. 39),
It is supported slidably in the axial direction. One end 83c of the locking lever 83 is loosely fitted to the other guide shaft 82, so that it does not rotate about the shaft 81. The locking lever 83 is provided to be swingable around the hole 83a within the elongated hole 83b.

The other end of the locking lever 83 is connected to the bearing 80 of the board 80.
A locking end 83d projects outward from d and 80e, and a diagonally bent abutting portion 83e and a locking protrusion 84 are formed on the edge of the locking end 83d.

The locking end 8 is attached to the locking lever 83 by the elasticity of a first spring 85 stretched between a spring catch 83f formed on the lower edge and the bearing 80d.
The movement behavior is given in a direction that causes 3d to protrude. The first spring 85 is connected to the locking lever 83.
It has the habit of rotating counterclockwise (in FIG. 31) about the hole 83a.

The guide shaft 81 also has a hole 86a and a long hole 86.
A release lever 86 (see FIG. 39), which is slidable in the axial direction, is supported by fitting and inserting the release lever 86 (see FIG. 39). One end 86c of the release lever 86 is connected to the locking lever 83.
and the bearing 80d.
Further, the other end 86d of the lever 86 is loosely fitted to the other guide shaft 82 so as not to rotate about the shaft 81.

A locking step portion 86e is formed at one end side edge of the release lever 86, which is bent and extends toward the bearing 80d. A spring hook 86f is formed at the upper part of one end 86c of the lever 86.

On the other hand, on one side of the bearing 80d is a stopper 88 with which the step 86e of the release lever 86 engages and disengages.
is formed.

A charge lever 87 (third
9) is movable in the axial direction through its hole 87a.
(only one is shown) is inserted and supported.
One end 87b of the charge lever 87 is loosely fitted to the other guide shaft 81 so as not to rotate about the shaft 82.

The other end 87c of the charge lever 87 has a support shaft 8.
A roller 90 is rotatably supported by 9. The roller 90 forms the abutting end of the charge lever 87, and protrudes similarly to the locking end 83d of the locking lever 83, as is clear from FIG.

The charge lever 87 causes the roller 90 to protrude by a second spring 91 stretched between the spring hook 87d and the bearing 80e, or in other words, to a position where it abuts one surface of an engaging portion, which will be described later. It is endowed with a prominent directional movement habit.

Another spring hook 87 for the charge lever 87
A third spring 92 is stretched between the release lever 86 and the spring hook 86f of the release lever 86, giving the release lever 86 a movement behavior in the opposite direction to that of the locking lever 83. ing.

The elasticity of the second spring 91, the third spring 92, and the first spring 85 is usually larger in this order.

Therefore, as shown in FIG. 27, when each spring is not charged, that is, when the lid is open, the locking lever 83 is held at its locking end 83d by the elasticity of the first spring 85. is moved in the direction of protruding, and its bent portion 83h presses one end 86c of the release lever 86 against the bearing 80d,
The charge lever 87 is moved by the elasticity of the second spring 91 in a direction that causes the roller 90 to protrude, and the bent portion 87f presses the bent portion 83g of the locking lever 83, causing the roller 90 to be pushed out. , locking end 8
3d and a locking step portion 86e are respectively protruded.

Further, the charge lever 87 is moved parallel to the guide shaft, but the locking lever 83 and the release lever 86 are connected to the guide shaft 8 through the elongated holes 83b and 86b.
1 and the first and third springs 8
5 and 92, as shown in FIG. 31, they are swung around the other holes 83a and 86a, respectively. A locking step 86e of the swinging release lever 86 is positioned so as to be able to engage with a stopper 88 formed on the bearing 80d.

As shown in FIG. 31, the board 80 is fixed to the lid 93 via a mounting plate 94 fixed to the lid 93, and the locking end of the locking lever 83 and the roller of the charge lever 87 are connected to each other. 90 means that when the lid is open, as shown in FIG.
It protrudes from a window hole 95 provided on one side of 3.

It goes without saying that the lid 93 is given an opening habit by appropriate means in the same way as the lid 5 shown in FIG. 2, and the difference from the lid 5 is that each lever An engaging portion that is provided on the lid side and into which only the locking lever of the lid fits and locks the locking lever is provided on the main body of the device that supports the lid so that it can be opened and closed.

The above-mentioned engaging portions, as shown by reference numeral 96 in FIG. 32, are formed on the support body 97 of the main body of the device, and are located in the swing locus of the protruding portions of the respective levers of the lid body 93.

The first one closes the lid and holds it in the closed position.
The operation will be explained.

As shown in FIG. 32, when the lid 93 is swung in the first closing direction, the locking end 83d of the locking lever 83 and the roller 90 of the charge lever 87 collide with one surface 97a of the support 97. However, as shown in FIGS. 33 and 34, both levers are pushed against their natural habits. That is, when the lid body 93 is closed, the locking lever 83 has its abutting portion 83e substantially pushed toward one surface 97a, and is moved along the guide shaft 81 against the first spring 85. Move to the left. The movement of the locking lever 83 causes the first spring 85 to be energized.

At this time, the locking lever 83 is moved by the first spring 85.
Due to the elasticity of the hole 83a and being pushed toward the one side 97a, the third
(See long hole 83b in Figure 3).

In addition, the charge lever 87 causes the roller 90 to be substantially pushed by the one surface 97a of the support body 97, and moves along the guide shaft 82 against the second spring 91 and stores this spring. Move to the left. This moving charge lever 87 attempts to move the release lever 86 in the same direction via the third spring 92.

On the other hand, the release lever 86 tries to move as the charge lever 87 moves, but since it is swung around the hole 86a (see FIG. 31) by the third spring 92, Locking step portion 86
e engages with the stopper 88 and is prevented from doing so.

Therefore, one end of the third spring 92 is substantially fixed, and the movement of the charge lever 87 causes the third spring 92 to be energized.

Next, from the state in which the locking end of the locking lever 83 does not correspond to the engaging portion 96, as shown in FIG. 33, the lid body 93 is further swung in the first direction. Then the third
As shown by reference numeral 84A in FIG. 5, the locking lever 83
The locking protrusion 84 fits into the engaging portion 96 due to its habit.

When the pressing force on the lid body 93 is removed, the lid body 93 tends to open according to its opening habit, but is held in that position because the locking lever 83 engages with the engaging portion 96. When the lid body 93 is about to swing in the opening direction, the locking lever 83 has the locking end 83d engaged with the upper edge 96a of the engaging portion 96, so that the locking lever 83 swings slightly within the range of the elongated hole 83b. I am made to do so.

The swinging locking lever 83 has a bent portion 83h.
Push and swing the release lever 86 with the lower edge of the button.
The swung release lever 86 touches the locking step 86
e is disengaged from the stopper 88, and is moved in the direction of being drawn into the board 80 by the stored third spring 92 (see FIGS. 35 and 36).

The moving release lever 86 is moved by applying the elasticity of the charged third spring 92 to the locking lever 83 by bringing the bent portion 86c into contact with the bent portion 83h.
, and moves the lever 83 in the direction of pulling out from the engaging portion 96 against its natural tendency. but,
This locking lever 83 is prevented from moving by having its locking protrusion 84 engaged with an engaging portion 96 . In other words, the locking lever 83 is
The cover 93 is held in its closed position by engaging the engagement portion 96 with the escape behavior.

The escape behavior of the locking lever 83 is continued by the release lever 86, the charged third spring 92, and the charged lever 87 being pushed.

To open the lid 93 placed in the closed position as shown in FIGS. 35 and 36, a second pressing force is applied to the lid 93 in a first direction to close it. Perform the action.

As shown in FIG.
As shown in FIG. 7, when the lid body 93 is pushed in the first direction, the locking protrusion 84 is pushed down and released from engagement with the upper edge 96a of the engaging portion 96. Then, the disengaged locking lever 83 is released from the release lever 83, which gives the lever a tendency to escape.
6, as shown in FIG. 37, the guide shaft 8
1 to the left.

That is, the locking lever 83 that has been disengaged from the engaging portion 96 has its bent portion 83h pressed by the bent portion 86c of the release lever 86 that transmits the elasticity of the charged third spring 92. The guide shaft 81
The bent portion 83g comes into contact with the bent portion 87f of the charge lever 87 along. The final position of the movement of the locking lever 83 is the third position where the locking protrusion 84 is completely disengaged from the engaging portion 96.
This is the position shown in FIGS. 7 and 38.

Further, the release lever 86 and the locking lever 83 moved by the elasticity of the third spring 92 are moved by the spring 92 and the first spring 85 into one hole 86.
a, 83a, (see Figure 39), 37th
As shown in the figure, it is oscillated within the length range of the other long holes 86b and 83b. As shown in FIG. 37, one of the release levers 86 is
The inclined end portion of the locking step portion 86e is aligned with the edge of the stopper 88.

Note that FIG. 38 is a plan view of FIG. 37, with the lid swinging, but for convenience of illustration, the support body 97 is shown swinging.

Next, as shown in FIG. 37, the lid body 9 is swung.
When the pressing force on 3 is removed, there is no longer any element to hold the lid in the closed position, so its opening behavior causes it to swing in the second opening direction.

Then, the charge lever 87 released from contact with the one surface 97a of the support body 97 is moved by the second spring 9
Due to the elasticity of the first spring 85, the locking lever 83 moves back to the right as shown in FIG. is also moved to the right. As shown in FIG. 32, a roller 90, which serves as the locking end of the locking lever 83 and the abutting end of the charge lever 87, protrudes from one side of the lid 93. Prepare for the closing operation.

As described above, even in this embodiment in which each lever is attached to the lid, the lid can be opened and closed with a single touch. Of course, even if the lever in this embodiment is attached to the main body of the apparatus, the lid can be opened and closed in the same manner as in each of the embodiments described above.

Furthermore, in the embodiments shown in FIGS. 3 to 25, each lever may of course be attached to the lid, and whether each lever is provided on the lid or on the main body of the device is selected as appropriate from the design standpoint. Ru.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a facsimile device as an example of a device equipped with a lid opening/closing device of the present invention;
FIG. 2 is a side sectional view showing an example of means for imparting an opening habit to the lid body, FIGS. 3 to 10 show an embodiment of the present invention, FIG. 3 is a side view, and FIG. Figure 5 is a front view, Figure 5 is a bottom view, Figure 6 is an exploded perspective view, Figure 7 is a bottom view, Figure 8 is an operational view of Figure 3 explaining the first operation, and Figure 9 shows the lid body. Fig. 8 is an operational diagram showing the state locked in the closed position, and Fig. 10 is the action diagram of the second
FIG. 9 is an operational diagram for explaining the operation of the invention, and FIGS. 11 to 18 show other embodiments of the present invention, in which FIG. 11 is an exploded perspective view, FIG. 12 is a side view, and FIG.
The figure is the back view of figure 12, figure 14 is the front view,
5 is a bottom view, FIG. 16 is an operational view of FIG. 12 explaining the first operation, FIG. 17 is an operational view of FIG. 16 showing a state in which the lid is locked in the closed position, and FIG.
The drawings are an operational view of Fig. 17 for explaining the second operation, Figs. 19 to 25 show still other embodiments of the present invention, Fig. 19 is an exploded perspective view, and Fig. 20 is a side view. Figure 21 is a front view, Figure 22 is a bottom view,
FIG. 23 is an operational diagram of FIG. 20 explaining the first operation, and FIG. 24 is a second diagram showing the state in which the lid is locked.
FIG. 3 is an operational view, FIG. 25 is an operational view of FIG. 24 for explaining the second operation, FIGS. 26 to 39 show still another embodiment of the present invention, and FIG. 26 is an operational view of FIG. Partially cutaway perspective view, Fig. 27 is a plan view, Fig. 28 is a front view, Fig. 29 is a side view, Fig. 30 is a 29th
Figure 31 is a sectional view of Figure 29, Figure 3 is a rear view of Figure 31.
Figure 2 is a side view showing the positional relationship between the lid and the engaging part;
33 is an operational view of FIG. 31 explaining the first operation, FIG. 34 is a plan view of the same, and FIG. 35 is an operational view of FIG. 33 showing a state in which the lid body is held in the closed position.
36 is a plan view of the same, FIG. 37 is an action view of FIG. 35 explaining the second operation, FIG. 38 is a plan view of the same,
FIG. 39 is a perspective view showing only the charge lever, release lever, and locking lever. 5,93...Lid body, 10,96...Engaging portion, 1
3, 32, 54, 83...Latching lever, 14, 3
3, 56, 86...Release lever, 15, 34, 5
8, 87...Charge lever, 18, 36, 6
0,85...first spring, 21,39,63,9
1...Second spring, 22, 40, 64, 92...
Third spring, 11b, 30c, 52, 88... stopper, 20, 38, 62, 90... roller.

Claims (1)

[Claims] 1. A lid that is swingable in a first closing direction and a second opening direction and has an opening habit, and a support that swingably supports the lid. and the lid, which is provided on the support or the lid and is movable in the direction of engaging and disengaging from the engaging portion provided on the lid or the support, and which has swung to the closed position. a locking lever for holding the locking lever in the closed position; a first spring that gives the locking lever a tendency to move in a direction in which the lever engages with the engaging portion; and a first spring provided on the support or the lid. The locking lever is movable in the same direction as the locking lever, and has a roller rotatably provided at the abutting end that moves in the direction of abutting one side of the lid or the support. , a charge lever that is moved in a direction away from the lid or the support when the roller comes into contact with the lid or the support; a second spring that is biased when moved in a direction away from the body; and a second spring that is provided on the support or the lid and is movable in the same direction as the locking lever; A third spring provides a movement behavior opposite to that of the charge lever, and when the charge lever is pushed by the lid or support, the charge lever moves integrally with the support or the support. engaging with a provided stopper to prevent its movement and energizing the third spring, and disengaging from the stopper when the locking lever engages with the lid or the support; a release lever that biases the locking lever in a direction to separate it from the lid or the support; and a release lever that is spanned between the release lever and the charge lever so that the charge lever is separated from the lid or the support. When the locking lever is moved in the direction to A lid opening/closing device comprising a third spring for moving the release lever in a direction to separate the locking lever from the lid or the support when the locking lever is released. 2. The lid opening/closing device according to claim 1, wherein the locking end of the locking lever is formed with a locking step portion that engages and disengages from the engaging portion of the lid. .