JP2006266444A - Breakage-preventing mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a break-preventing mechanism having a simple structure which gives a warning in the case when an external force of a specified magnitude is acted from upward on a turning body which is at an extruding position. <P>SOLUTION: In the break-preventing mechanism provided with the turning body 2, turning of the turning body 2 is restricted at a protrusion-limit position where a part of the turning body 2 is contacted with a part of a main body 1 to be hindered from turning beyond the position. In the main body 1 and the turning body 2, protrusion 14, 24 coming into contact to each other are formed at normal protrusion positions just before the protrusion-limit position. In the case when an external force of the specified magnitude directed to the protrusion-limit position is acted on the turning body 2 placed at the normal protrusion position, an elastic deformation is caused in the turning body 2. The elastic deformation on the side of the turning body 2 allows the protrusion 24 of the turning body 2 to get over the protrusion 14 of the main body 1, and the elastic recovery allows the protrusion 24 of the turning body 2 to come into strong contact with a part of the main body 1 to give an impulsive sound. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mechanism that prevents damage to the mechanism as much as possible from being provided with a rotating body that is rotatably mounted between a standing position and a protruding position on a main body with a rotating shaft.

  A main body that is housed in a wall of a living room and has a storage space inside, and an opening of the main body is closed at a standing position so that the outer surface is a part of the wall surface and the opening is opened at a protrusive position. As described above, there is a storage device including a lid body rotatably attached to a main body.

  However, in this type of storage device, when the lid is in the protruding position in its usage situation, a hand is placed on the lid and a strong external force is applied to the lid from above. The situation is likely to occur. Since such a lid is usually positioned at this protruding position with a part thereof in contact with a part of the main body at the protruding position, the action of such an external force causes damage to the apparatus. Although it is possible to prevent such damage as much as possible by increasing the rigidity of the lid body and a part of the main body, there is a limit to this.

  The main problem to be solved by the present invention is that, in a mechanism having a rotating body assembled to a main body so as to be rotatable between a standing position and a protruding position with a rotating shaft, the rotating body at the protruding position On the other hand, when an external force of a predetermined magnitude is applied from above, it is possible to warn with a simple structure that the mechanism may be damaged if the external force is further applied.

In order to solve the above problems, in the present invention, the damage prevention mechanism has the following configurations (1) to (3).
(1) A rotating body assembled with a rotating shaft on a main body so as to be rotatable between a standing position and a limit protruding position, and a part of the rotating body hits a part of the main body at the limit protruding position. It is a damage prevention mechanism in a mechanism provided with a rotating body in which the rotation of the rotating body from the limit protruding position is restricted,
(2) The main body and the rotating body are formed with convex portions that come into contact with each other at the normal protruding position immediately before reaching the limit protruding position,
(3) When an external force of a predetermined magnitude toward the limit protruding position is applied to the rotating body at the normal protruding position, the protruding portion of the rotating body gets over the protruding portion of the main body due to elastic deformation on the rotating body side. In addition, the convex portion of the rotating body comes into strong contact with a part of the main body due to the elastic return after getting over and generates an impact sound.

  The rotating body in the standing position is normally rotated to a position where the convex portion abuts against the convex portion of the main body. The rotating body in the normal protruding position can rotate to the limit protruding position, but if the external force continues to act on the rotating body at the limit protruding position, a part of the rotating body that abuts at the limit protruding position and the main body There is a risk of causing damage to some of the parts. However, when the external force is applied to the rotating body that is normally in the protruding position, the rotating body is rotated to the limit protruding position while generating the impact sound. It is possible to make a warning that there is a risk of damage. As a result, it is possible to prevent the mechanism from being damaged due to such an external force without particularly increasing the rigidity of the part of the rotating body that abuts at the limit protruding position and the part of the main body.

  The convex part of the main body that comes into contact with the convex part of the rotating body in the normal projecting position is provided with an inclined surface that is inclined so as to gradually reduce the thickness of the convex part as it goes toward the protruding end of the convex part. Sometimes you want to keep it.

  In this case, when the external force of a predetermined size is applied to the rotating body that is normally in the projecting position, the inclined surface without causing damage to the convex portion of the main body and the convex portion of the rotating body. Therefore, the elastic deformation can be easily generated and the overcoming can be realized.

  In addition, an auxiliary convex portion that is in contact with the convex portion of the rotating body at the limit protruding position may be formed next to the convex portion of the main body.

  In this case, the external force can be received even at the auxiliary convex portion at the limit projecting position, and all of the external force applied when the ride over occurs can be prevented from acting on a part of the main body. .

  The rotating body is rotatably assembled to the main body by a rotating shaft provided above the lower end of the rotating body at the standing position, and the lower end and the rotating shaft of the rotating body at the limit protruding position. If the portion between the two is pressed against the receiving surface of the main body from below, it is possible to receive the external force applied when the ride over occurs in a relatively wide range of the main body.

  According to the present invention, when an external force of a predetermined magnitude is applied from above to the rotating body at the protruding position, it is possible to generate an impact sound. Such a mechanism can be warned by warning that there is a possibility that the mechanism may be damaged.

  The best mode for carrying out the present invention will be described below with reference to FIGS.

  1 is an example of a mechanism to which the damage prevention mechanism according to the embodiment is applied, and FIG. 2 is a state where the rotating body 2 and the main body 1 constituting the mechanism are separated from each other. FIG. 3 shows a state in which the rotating body 2 is normally in the protruding position, and FIG. 4 shows a state in which the rotating body 2 is in the standing position as a state of a longitudinal section. FIG. 5 is a side view of the main body 1 constituting the mechanism, and is a longitudinal sectional view of only the main body 1 in an orientation in which the inner surface of the other side plate 12 facing the side plate 12 shown in FIGS. 3 and 4 appears. Shown as a state. 6 shows a state in which the convex portion 24 of the rotating body 2 is in contact with the convex portion 14 of the main body 1 and the rotating body 2 when the rotating body 2 is in the normal protruding position. Only the convex portion 24 is shown in cross section, and FIG. 7 shows a similar state in which the main body 1 is sectioned in a direction along the groove-like portion 15 of the main body 1. (In FIG. 6 and FIG. 7, what is indicated by an alternate long and two short dashes line is the contour shape of the convex portion 24 of the rotating body 2 when the rotating body 2 is in the limit protruding position.) FIG. 2 is shown.

  The damage prevention mechanism according to this embodiment is a mechanism including a rotating body 2 that is assembled to a main body 1 so as to be rotatable between a standing position and a protruding position with a rotating shaft 3. When an external force of a predetermined magnitude is applied to the moving body 2 from above, an impact sound is generated, and if such an external force continues to be applied, a warning is given that the mechanism may be damaged. Therefore, it is intended to prevent such damage.

  A typical example of such a mechanism is a mechanism in which the rotating body 2 is a lid that closes the opening of the main body 1 with the front face open at an upright position. More specifically, as such a mechanism, a storage device or the like in which the main body 1 is housed in a wall or the like in a living room and the lid is part of the wall surface in the standing position is planned.

  The rotating body 2 is assembled to the main body 1 so as to be rotatable between a standing position and a limit protruding position. A part of the rotating body 2 abuts against a part of the main body 1 at the limit protruding position, and the rotation from the limit protruding position to the front is restricted.

  In the illustrated example, the main body 1 has a top plate 10, a bottom plate 11, and a pair of side plates 12 and 12, and is configured so that a space surrounded by these is used as a storage space. And it is comprised so that the opening 13 of the front of the main body 1 may be obstruct | occluded by the rotary body 2 in an upright position. In the illustrated example, a reinforcing plate indicated by reference numeral 11 a in FIG. 2 is attached to the inner surface of the bottom plate 11 of the main body 1.

  On the other hand, the rotating body 2 includes a lid plate portion 20 and a circulation side plate portion 21 formed so as to protrude upward from the upper surface at the protruding position of the lid plate portion 20. In the illustrated example, the article held in the space surrounded by the circumferential side plate portion 21 can be taken out and used at the projecting position of the rotating body 2. The circling side plate portion 21 is configured to be accommodated in the main body 1 in the standing position. The surrounding side plate portion 21 includes an upper plate portion 21a along the upper end of the rotating body 2 in the standing position, a lower plate portion 21b along the lower end, and left and right plate portions 21c and 21c.

  Moreover, the rotating body 2 is rotatably assembled to the main body 1 by a rotating shaft 3 provided above the lower end 20a of the rotating body 2 in the standing position.

  In the illustrated example, the shaft hole 21d formed on the side of the rotating body 2 that contacts the lower plate portion 21b of the left and right plate portions 21c and 21c is respectively below the side plate 12 of the main body 1 and the opening 13 of the main body 1. The rotating body 2 is rotatably assembled to the main body 1 by inserting the rotating shaft 3 inserted from the outside into the through hole 12a formed on the side.

  In the illustrated example, a space is formed between the lower end 20a of the rotating body 2 in the standing position and the lower plate portion 21b, and a portion 20b between the lower end 20a and the outer surface of the lower plate portion 21b is formed. At the limit protruding position, the outer surface of the bottom plate 11 of the main body 1 on the opening 13 side is pressed as a receiving surface 11b from below. That is, in the illustrated example, at the limit projecting position, a portion 20b between the lower end 20a of the rotating body 2 and the rotating shaft 3 is pressed against the receiving surface 11b of the main body 1 from below.

  Further, in the illustrated example, the pinion 22a and a part of the pinion 22a are accommodated in one of the left and right plate portions 21c and 21c of the rotating body 2, and a viscous resistance is given to a part of the pinion 22a inside. A damper device 22 including a case 22b enclosing a viscous fluid such as silicon oil is attached, and a virtual center around the rotation shaft 3 is provided on one inner surface of the pair of side plates 12 and 12 of the main body 1. A rack portion 12b formed along an arc of a circle is provided, and the pinion 22a of the damper device 22 is engaged with the rack portion 12b when the rotating body 2 is in any rotation position. It has become. Further, in the illustrated example, the spring winding portion 40 is wound around the rotating shaft 3 on the side where the damper device 22 is provided, the spring end 41 is fixed to the rotating body 2, and The other end 42 of the spring is arranged so as to contact the inner surface (reinforcing plate 11a) of the bottom plate 11 of the main body 1 at a predetermined rotation position as the rotating body 2 is rotated toward the standing position. There is provided a torsion coil spring 4 for storing an urging force in a direction to rotate the rotating body 2 toward the protruding position by rotating the rotating body 2 from the rotating position to the standing position. Further, in the illustrated example, not shown in the figure, provided on the inner surface side of the top plate 10 of the main body 1 and on the opening 13 side of the main body 1 at a position approximately in the middle of the upper plate portion 21 a of the rotating body 2. A latch device (not shown) configured to grasp the striker portion when the rotating body 2 is fully rotated to the upright position, and to push the rotating body 2 at the upright position to release the holding. A mounting portion 23 is provided for mounting a so-called push-push type latch device. In the illustrated example, the state in which the rotating body 2 is in the standing position is maintained by the latch device, and when the rotating body 2 in the standing position is pushed, the rotating body 2 is predetermined by the biasing force of the spring. To the pivot position, it automatically pivots and opens in a protruding manner, and from there to a normal projecting position, which will be described later, is rotated by its own weight, and braking is applied to the rotation by the damper device 22. It has become. In the illustrated example, the rotating body 2 is arranged so as to protrude substantially horizontally from the main body 1 at the normal protruding position.

  Further, the main body 1 and the rotating body 2 are formed with convex portions 14 and 24 that come into contact with each other at the normal protruding position just before reaching the limit protruding position.

  In the illustrated example, the convex portions 24 of the rotating body 2 are provided on both the left and right plate portions 21c and 21c of the rotating body 2, respectively. Each convexity 24 is formed in the upper end part of the location used as the corner between these left-right board parts 21c and 21c, and the lower board part 21b. The convex portion 24 is formed so as to protrude from the outer surfaces of the left and right plate portions 21c and 21c, and is configured to form a rib shape along the vertical direction of the left and right plate portions 21c and 21c.

  On the other hand, in the illustrated example, the convex portion 14 of the main body 1 is formed on the inner surface of both the pair of side plates 12 and 12 of the main body 1 and on the edge side of the opening 13 of the main body 1. In the illustrated example, the convex portion 14 is configured to have a rib shape extending along the vertical direction of the main body 1.

  More specifically, in the illustrated example, a groove-like portion 15 along a virtual circular arc centering on the rotation shaft 3 is formed on the inner surfaces of both the pair of side plates 12, 12 of the main body 1. The convex portions 24 provided on the left and right plate portions 21c and 21c of the rotating body 2 are moved so as to slide in contact with the groove bottoms in the corresponding groove-like portions 15 by the rotation of the rotating body 2. It has become. When the rotating body 2 is in the standing position, the convex portion 24 of the rotating body 2 is positioned at the lower end of the groove 15. The convex portion 14 of the main body 1 is a partition wall extending in the width direction of the groove 15 at the upper end side of the groove 15 (the end directed toward the opening 13 of the semicircular arc 15). It is formed so as to form a shape. Further, in the illustrated example, an auxiliary convex portion 16 described later is formed on the front side of the convex portion 14 of the main body 1 with an interval in which the convex portion 24 of the rotating body 2 is accommodated between the convex portion 14. Yes. This auxiliary convex portion 16 is also formed as a rib that forms a partition wall shape in the width direction of the groove-like portion 15 in the illustrated example. Further, in the illustrated example, a rib 17 is formed between the convex portion 14 and the auxiliary convex portion 16 of the main body 1 along the length direction of the groove portion 15. The rib 17 has a protruding dimension from the groove bottom of the groove-like portion 15 slightly smaller than the convex portion 14 and the auxiliary convex portion 16 of the main body 1. (Fig. 7)

  In the breakage prevention mechanism according to this embodiment, when an external force of a predetermined size toward the limit protruding position is applied to the rotating body 2 at the normal protruding position, the rotating body 2 side Due to the elastic deformation, the convex portion 24 of the rotating body 2 gets over the convex portion 14 of the main body, and the convex portion 24 of the rotating body 2 comes into strong contact with a part of the main body 1 due to the elastic return after getting over and generates an impact sound. I am trying to make it. Such elastic deformation characteristics can be easily imparted by constituting a part or all of the rotating body 2 to be elastically deformed with a plastic material.

  In the illustrated example, the left and right plate portions 21c and 21c of the rotating body 2 are applied when an external force of a predetermined magnitude is applied to the rotating body 2 protruding from the main body 1 substantially horizontally at the normal protruding position. The convex portion 24 of the rotating body 2 gets over the convex portion 14 of the main body 1 and is brought into contact with the auxiliary convex portion 16 while the upper end side of the rotating body 2 is bent inward. When the left and right plate portions 21c, 21c of the rotating body 2 are elastically restored by this overcoming, the convex portion 24 of the rotating body 2 is a part of the main body 1, and in the illustrated example, the convex portion 14 and the auxiliary convex portion 16 of the main body 1. The impact sound is generated by hitting the rib 17 between the two. Since the convex portion 24 of the rotating body 2 that abuts against the auxiliary convex portion 16 causes the rib 17 to abut the tip thereof, the upper end sides of the left and right plate portions 21c and 21c of the rotating body 2 are still slightly inward at the limit projecting position. It will be bent in the direction. When the rotating body 2 at the limit protruding position is lifted upward, the convex portion 24 of the rotating body 2 gets over the convex portion 14 of the main body 1 across a relatively small step between the rib 17 and the convex portion 14 of the main body 1. The left and right plate portions 21c, 21c of the rotating body 2 are elastically restored, and the rotating body 2 is smoothly returned to the normal protruding position.

  The rotating body 2 in the standing position is normally rotated to a position where the convex portion 24 abuts against the convex portion 14 of the main body 1. The rotating body 2 in the normal protruding position can be rotated to the limit protruding position. If the external force continues to act on the rotating body 2 at the limit protruding position, one of the rotating bodies 2 that abut at the limit protruding position. There is a risk of causing damage to the part and a part of the main body 1. However, when the external force is applied to the rotating body 2 that is normally in the protruding position, the rotating body 2 is rotated to the limit protruding position while generating the impact sound. A warning can be made to recognize that the mechanism may be damaged. Thereby, it is possible to prevent the mechanism from being damaged due to such an external force without particularly increasing the rigidity of a part of the rotating body 2 and a part of the main body 1 that abut each other at the limit protruding position. it can.

  For example, the rotating body 2 is housed and held in a sphygmomanometer inside the circumference side plate portion 21 and is rotatably assembled in the main body 1 accommodated in the wall of the rest room. When the sphygmomanometer is protruded from the wall and configured as a lid that can be used by the restroom user, the rotating body 2 that is in the normal protruding position when the user stands up from the seated state on the toilet bowl. Even if the user puts his / her hand on, the user can be warned to recognize that he / she should not keep his / her hand on the rotating body 2 due to the impact sound when it is rotated to the limit protruding position.

  Further, in this embodiment, the side portion of the convex portion 14 of the main body 1 that contacts the convex portion 24 of the rotating body 2 at the normal protruding position gradually becomes closer to the protruding end of the convex portion 14. An inclined surface 14 a that is inclined in a direction to reduce the thickness of the convex portion 14 is provided.

  Accordingly, in this embodiment, when the external force having a predetermined size is applied to the rotating body 2 that is normally in the protruding position, the convex portion 14 of the main body 1 and the convex portion 24 of the rotating body 2 are damaged. Without causing the above, the inclined surface 14a facilitates the generation of the elastic deformation to realize the overcoming.

  Further, in this embodiment, as described above, the auxiliary convex portion 16 that is in contact with the convex portion 24 of the rotating body 2 at the limit protruding position is formed next to the convex portion 14 of the main body 1. Therefore, the external force can be received also at the auxiliary convex portion 16 at the limit projecting position, and all of the external force applied when the climbing occurs is applied to a part of the main body 1, that is, a receiving surface 11b described later. Can be prevented.

  Further, in this embodiment, as described above, the rotating body 2 is rotatably assembled to the main body 1 by the rotating shaft 3 provided above the lower end 20a of the rotating body 2 in the standing position. In addition, since the portion 20b between the lower end 20a and the rotation shaft 3 of the rotating body 2 is pressed against the receiving surface 11b of the main body 1 from below at the limit protruding position, It is possible to receive the external force applied when the above occurs in a relatively wide range of the main body 1.

Perspective configuration diagram showing an application example of the damage prevention mechanism Exploded perspective view Same longitudinal section diagram (rotating body 2 normal protruding position) The same vertical cross-section diagram (Rotating body 2 standing position) Vertical cross-sectional configuration diagram of the main body 1 Side view of main part 1 Cross section diagram of the main part Plane configuration diagram of the rotating body 2

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 14 Convex part 2 Rotating body 24 Convex part 3 Rotating shaft

Claims (4)

A rotating body assembled with a rotating shaft on the main body so as to be rotatable between a standing position and a limit protruding position, and at the limit protruding position, a part of the rotating body hits a part of the main body and this limit protruding It is a damage prevention mechanism in a mechanism provided with a rotating body that is designed to restrict the rotation of the rotating body from the position to the front,
In the normal projecting position immediately before reaching the limit projecting position, the main body and the rotating body are formed with protrusions that contact each other,
When an external force of a predetermined size toward the limit protruding position is applied to the rotating body that is normally in the protruding position, the protruding portion of the rotating body gets over the convex portion of the main body due to elastic deformation on the rotating body side, and A breakage prevention mechanism characterized in that the projecting portion of the rotating body comes into strong contact with a part of the main body by elastic return after overcoming to generate an impact sound.   The convex part of the main body that comes into contact with the convex part of the rotating body in the normal projecting position is provided with an inclined surface that is inclined so as to gradually reduce the thickness of the convex part as it goes toward the protruding end of the convex part. The damage prevention mechanism according to claim 1, wherein   The breakage prevention mechanism according to claim 1 or 2, wherein an auxiliary convex portion that is in contact with the convex portion of the rotating body at a limit projecting position is formed next to the convex portion of the main body. The rotating body is rotatably assembled to the main body by a rotating shaft provided above the lower end of the rotating body in the standing position,
The position between the lower end of the rotating body and the rotating shaft is pressed against the receiving surface of the main body from below at the limit protruding position. The damage prevention mechanism according to item 1.

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