JP5216502B2 - Cover opening / closing mechanism - Google Patents

Description

  The present invention relates to a cover opening / closing mechanism in a device having an openable / closable cover.

  A conventional cover opening / closing mechanism for preventing the opening / closing cover from dropping has the configuration shown in FIG. That is, the conventional cover opening / closing mechanism includes an apparatus body cover 1 covering the apparatus side, an opening / closing cover 2 that rotates to open / close, a hinge 3 that connects the opening / closing cover 2 and the apparatus body cover 1, The torque hinge 20 that functions as a damper and the cover support stay 7 that supports the opened cover 2 are configured.

  The opening / closing cover 2 is connected to the apparatus main body cover 1 by a hinge 3 and opens / closes in the direction of arrow A around the rotation fulcrum 6 so as to access a mechanism part or medium inside the apparatus (not shown).

In this cover opening / closing mechanism, it is necessary to prevent the opened opening / closing cover 2 from abruptly dropping and pinching the operator's hand, etc., and the cover support stay 7 for holding the opened state or the opening / closing cover 2 A damper mechanism such as a torque hinge 20 is provided at the rotation fulcrum portion of the opening / closing cover 2 in order to prevent a sudden fall of the opening / closing cover 2 (see, for example, Patent Document 1).
JP 2000-77861 A

  However, in the cover opening / closing mechanism having the above-described configuration, a space for mounting the damper mechanism such as the torque hinge 20 and the cover support stay 7 is secured, the apparatus mass and cost are increased, and the cover support stay 7 jumps out to the operation space. Therefore, there is a problem that the operability is deteriorated or a finger is caught between the cover support stay 7 and the apparatus main body cover 1.

The present invention adopts the following configuration in order to solve the above-described problems. That is, in the cover opening / closing mechanism that allows the cover (2) to rotate and freely open and close , an L-shaped hinge (3) having a rotation fulcrum at one end connecting the cover (2) and the body cover (1). ) comprising a, the side surface of the other end portion side of the hinge (3), wherein interfere with the body cover (1) to deflect push the said body cover (1) when the cover (2) was opened A flat protrusion (5) was provided.
In another invention, in the cover opening / closing mechanism that allows the cover (2) to rotate and freely open and close , an L-shape having a rotation fulcrum at one end connecting the cover (2) and the body cover (1). And a biasing means for biasing the side surface on the other end side of the hinge (3) with a predetermined force.

According to the cover opening / closing mechanism of the present invention, since it is configured as described above, a sudden drop of the opening / closing cover can be prevented by a safe, low-cost, and space-saving mechanism.

  Embodiments of the present invention will be described below with reference to the drawings. Elements common to the drawings are given the same reference numerals.

(Constitution)
FIG. 1 is a perspective view showing the configuration of the cover opening / closing mechanism according to the first embodiment. FIG. 2 is a diagram showing the configuration around the hinge portion of the cover opening / closing mechanism according to the first embodiment. It is a front view. The cover opening / closing mechanism of the first embodiment includes an apparatus main body cover 1, an opening / closing cover 2, and a hinge 3. The opening / closing cover 2 is connected to the apparatus main body by the hinge 3, and a mechanism unit (not shown) inside the apparatus main body cover 1 is shown. It can be opened and closed in the direction of arrow A about the rotation fulcrum 6 so that the medium and the medium can be accessed. The apparatus main body cover 1 has a hinge slit 4 for allowing the hinge 3 to pass therethrough. In addition, a protrusion 5 is provided on each side surface of the hinge 3.

  As shown in FIG. 2, the hinge width Lh is narrower than the slit width Ls, but the protrusion width Lt, which is the width of the hinge 3 and the protrusion 5, is set to be several mm wider than the slit width Ls.

(Operation)
With the above configuration, the cover opening / closing mechanism of the first embodiment operates as follows. This operation will be described below with reference to operation explanatory views (a side view and a front view, respectively) of the hinge portion of the cover opening / closing mechanism of the first embodiment shown in FIGS.

  When the open / close cover 2 is closed, the hinge width Lh is narrower than the slit width Ls as shown in FIG. 2 described above, and the projection 5 is in a position where it does not interfere with the apparatus main body cover 1, so no force acts on the hinge 3.

  From this state, as shown by the broken line in FIG. 3, when the opening / closing cover 2 is opened, the protrusion 5 provided on the side surface of the hinge 3 interferes with the outside of the hinge slit 4 inside the apparatus body cover 1 at the portion b. It jumps out to the position where it starts, and begins to push the apparatus body cover 1.

  That is, from the state before opening the opening / closing cover 2 in FIG. 4A, the opening / closing cover 2 in FIG. 4B in which the hinge 3 has moved in the direction of the arrow C is opened, and the deflection ΔLt in the apparatus body cover 1 is reduced. The protrusion 5 receives a reaction force in the direction of arrow B from the apparatus main body cover 1. Due to this reaction force, a frictional force is generated between the hinge 3 and the hinge slit 4, and a sudden drop of the opening / closing cover 2 can be prevented.

(Effect of Example 1)
As described in detail above, according to the cover opening / closing mechanism of the first embodiment, a protrusion that interferes with the apparatus body cover when the opening / closing cover is opened is provided on the side surface of the hinge that connects the opening / closing cover and the apparatus body cover. A frictional force is generated between the hinge and the hinge slit due to the reaction force of the device body cover generated by the protrusion, so that a safe, low-cost, space-saving mechanism prevents sudden opening and closing of the open / close cover. Can do.

(Constitution)
Since the overall configuration of the cover opening / closing mechanism of the second embodiment is the same as that of the first embodiment, detailed description thereof is omitted for the sake of brevity. 5 and 6 are views showing a configuration around the hinge portion of the cover opening / closing mechanism of the second embodiment, which are a side view and a front view, respectively.

  As shown in the figure, in the cover opening / closing mechanism of the second embodiment, a latch 12 is further provided on the protrusion 5 provided on the hinge 3.

  As shown in FIG. 6, the hinge width Lh is narrower than the slit width Ls, but the protrusion width Lt, which is the width of the hinge 3 and the protrusion 5, is about several mm wider than the slit width Ls, and the latch width Lw is It is about 0.5 mm wider than the protrusion width Lt.

(Operation)
With the above configuration, the cover opening / closing mechanism of the second embodiment operates as follows. This operation will be described below with reference to operation explanatory views (a side view and a front view, respectively) of the cover opening / closing mechanism of the second embodiment shown in FIGS.

  Even in the cover opening / closing mechanism of the second embodiment, when the opening / closing cover 2 is closed, no force acts on the hinge 3 because the projection 5 and the latch 12 are in a position not interfering with the apparatus main body cover 1 as shown in FIG.

  Then, as shown in FIG. 7, when the opening / closing cover 2 is opened from this state, the protrusion 5 provided on the side surface of the hinge 3 protrudes to a position where it interferes with the apparatus main body cover 1 at the portion b.

  That is, from the state before the opening / closing cover 2 of FIG. 8A is opened, the opening / closing cover 2 of FIG. The protrusion 5 receives a reaction force in the direction of arrow B from the apparatus main body cover 1. This reaction force generates a frictional force between the hinge 3 and the hinge slit 4.

  In the cover opening / closing mechanism according to the second embodiment, the latch 12 is further intermittently provided on the protrusion 5, and the latch 12 protrudes to a position (b portion in FIG. 7) that interferes with the apparatus main body cover 1. The opening / closing cover 2 can be securely held at the place where it is provided. As described above, by providing the latch 12 on the entire protrusion 5, the opening / closing cover 2 can be reliably held stepwise.

  In the above description of the embodiment, the latch 12 has been described as an ellipse as shown in FIG. 5, but it may of course have a rectangular shape or other shapes.

(Effect of Example 2)
As described above, according to the cover opening / closing mechanism of the second embodiment, since the latch is further provided on the protrusion provided on the side surface of the hinge that connects the opening / closing cover and the apparatus main body cover, the opening / closing cover is added to the effect of the first embodiment. Can be held more securely at the location where the latch is located.

(Constitution)
FIG. 9 is an external perspective view showing the configuration of the cover opening / closing mechanism according to the third embodiment, and FIG. 10 is an enlarged view of the portion a in FIG. 9 and showing the configuration around the hinge portion.

  As shown in the figure, the cover opening / closing mechanism of the third embodiment includes an apparatus main body cover 1, an opening / closing cover 2, and a hinge 3. The opening / closing cover 2 is connected to the apparatus main body by a hinge 3 so that it can be opened and closed in the direction of arrow A around the rotation fulcrum 6 so as to be able to access a mechanism part, a medium, etc. inside the apparatus (not shown).

  A hinge slit 4 for allowing the hinge 3 to pass is opened in the apparatus main body cover 1, and the hinge 3 is always pressed in the B direction from the side surface of the hinge slit 4 through the sliding plate 14 by the pressing spring 5. .

(Operation)
With the above configuration, the cover opening / closing mechanism of the third embodiment operates as follows. That is, the hinge 3 receives a pressing force in the direction of the arrow B from the pressing spring 5 via the sliding plate 14, and the pressing force causes the hinge 3 to be braked to prevent a sudden drop of the opening / closing cover 2. .

  Then, by setting the frictional force generated by the pressing of the pressing spring 5 to be equal to or greater than the dropping force of the opening / closing cover 2, the opening / closing cover 2 can be held in a stepless manner, and the opening / closing cover 2 does not fall.

(Effect of Example 3)
As described above, according to the cover opening / closing mechanism of the third embodiment, the side surface of the hinge slit is always pressed through the sliding plate by the pressing spring provided on the side surface of the hinge so that the brake is applied. A cost- and space-saving mechanism can prevent a sudden drop of the opening / closing cover.

(Constitution)
FIG. 11 is a diagram illustrating a configuration around the hinge portion of the cover opening / closing mechanism according to the fourth embodiment. As shown in the figure, the cover opening / closing mechanism of Example 4 has a configuration in which a repellent material 16 such as rubber is mounted on the side surface of the hinge slit 4 of the apparatus body cover 1. The reaction force is always applied to the hinge 3.

(Operation)
With the above configuration, the cover opening / closing mechanism of the second embodiment operates as follows. That is, the hinge 3 always receives a reaction force in the direction of the arrow B from the repulsion material 16, and the brake is applied to the hinge 3 by this reaction force, so that the sudden opening / closing cover 2 can be prevented. Further, if the frictional force generated by the reaction force in the direction of arrow B is set to be equal to or greater than the dropping force of the opening / closing cover 2 by adjusting the thickness and material of the repelling material 16, the opening / closing cover 2 can be held steplessly. it can.

(Effect of Example 4)
As described above, according to the cover opening / closing mechanism of the fourth embodiment, a rebound material is provided between the hinge slit side surface and the hinge of the apparatus main body cover, and the hinge is braked. The space mechanism can prevent the opening / closing cover from dropping suddenly.

<< Other modifications >>
In the above description of the embodiment, an example in which protrusions and latches are provided on the hinge 3 is shown. However, the hinge 3 is left as it is, and the shape of the hinge slit 4 is provided with a step as shown in part c of FIG. It is good also as a shape which made width narrower than the width of the lower part.

  Even with this shape, when the opening / closing cover 2 is opened, the hinge 3 moves in the direction of the arrow C, and the hinge 3 presses the side surface of the hinge slit 4 at the point c to generate a frictional force. It is possible to prevent the opened opening / closing cover 2 from dropping suddenly.

  In the above description of the embodiment, the projection 5, the latch 12, the pressing spring 15, the rebound material 16, and the like are provided on both hinges 3 attached to the opening / closing cover 2. You may make it provide these only.

  In the above description of the embodiment, the projection 5, the latch 12, the pressing spring 15, the rebound material 16, and the like are provided on the outer side of the hinge 3 attached to the opening / closing cover 2. May be provided.

  As described above, the present invention can be widely used for apparatuses, devices, and the like that have an openable / closable cover and are provided with a cover opening / closing mechanism.

It is an external appearance perspective view which shows the structure of the cover opening / closing mechanism of Example 1. FIG. It is a block diagram of the hinge part periphery of the cover opening / closing mechanism of Example 1. It is operation | movement explanatory drawing of the cover opening / closing mechanism of Example 1. FIG. It is a figure explaining operation | movement of the hinge part periphery of the opening / closing cover of Example 1. FIG. It is a block diagram of the hinge part periphery of the cover opening / closing mechanism of Example 2. It is a block diagram of the hinge part periphery of the cover opening / closing mechanism of Example 2. It is operation | movement explanatory drawing of the cover opening / closing mechanism of Example 2. FIG. It is a figure explaining operation | movement of the hinge part periphery of the opening / closing cover of Example 2. FIG. FIG. 6 is an external perspective view illustrating a configuration of a cover opening / closing mechanism according to a third embodiment. It is a block diagram of the hinge part periphery of the cover opening / closing mechanism of Example 3. It is a block diagram of the hinge part periphery of the cover opening / closing mechanism of Example 4. It is a block diagram of the hinge part periphery of the cover opening / closing mechanism of a modification. It is a side view which shows the structure of the conventional cover opening / closing mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body cover 2 Opening / closing cover 3 Hinge 4 Hinge slit 5 Protrusion 6 Rotation fulcrum 12 Latch 14 Sliding plate 15 Pressing spring 16 Rebound material

Claims (5)

In the cover opening / closing mechanism that allows the cover (2) to rotate and freely open and close,
An L-shaped hinge (3) having a rotation fulcrum at one end connecting the cover (2) and the body cover (1) ;
The side surface of the other end portion side of the hinge (3), said body cover (1) and interfere with flat projections to bend and push the said body cover (1) when the cover (2) was opened ( 5) A cover opening and closing mechanism provided with the above. The cover opening / closing mechanism according to claim 1, further comprising a plurality of small protrusions (12) provided on the protrusion (5). In the cover opening / closing mechanism that allows the cover (2) to rotate and freely open and close,
An L-shaped hinge (3) having a rotation fulcrum at one end connecting the cover (2) and the body cover (1);
Cover opening and closing mechanism, characterized in that a biasing means for biasing the side of the other end side of the hinge (3) at a predetermined force.   The cover opening / closing mechanism according to claim 3, wherein the biasing means is a means for biasing the sliding plate (14) by a pressing spring (15).   The cover opening / closing mechanism according to claim 3, wherein the biasing means is a repellent material (16).

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