JP5063743B2 - Push button misoperation prevention device - Google Patents

Description

  The present invention relates to a pushbutton erroneous operation prevention device having an erroneous operation prevention plate that is provided in an elevator car or the like and that can cover the surface of a pushbutton that outputs a signal in response to a push operation.

  In general, a normal push button provided on an operation panel installed in connection with the operation of a machine outputs a signal for realizing an original function in response to the push operation. What is such a normal push button? In addition, the operation panel is often provided with a push button that is pressed in an emergency or the like and outputs a signal. For example, in an elevator, the operation panel installed in the car is provided with a push button for contacting a passenger confined in the car to the outside, that is, an emergency call button, in addition to a normal push button. . However, such an emergency call button is arranged side by side on the operation panel together with a normal push button, so that an erroneous operation may occur.

  Therefore, conventionally, in Patent Document 1, it is possible to cover the surface of a specific push button that outputs a signal in response to the pressing operation, and the erroneous operation preventing plate arranged so that the surface is along the vertical direction, There is disclosed a configuration in which a support shaft is provided at a position directly above the push button and allows the erroneous operation preventing plate to be pivoted downward, and a through hole into which the support shaft is inserted is provided in the erroneous operation preventing plate. In such a configuration, the erroneous operation prevention plate covers the specific push button, so that it is possible to prevent the specific push button from being erroneously operated during normal operation of the push button, and when necessary, the erroneous operation prevention plate. The specific push button can be pressed by turning the support shaft about the support shaft.

JP-A-5-193848

  In the above-described conventional technique, since a support shaft for hanging an operation error prevention plate has to be provided at a position directly above the push button, there is some interference such as a communication hole portion of the external communication device directly above the push button. Has a problem that it cannot be attached with an erroneous operation preventing plate, that is, it is easily restricted by an interference object around the push button when the erroneous operation preventing plate is attached.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide a push button erroneous operation prevention device that can ease restrictions due to interference objects around the push button when attaching an erroneous operation prevention plate. is there.

In order to achieve the above-mentioned object, the pushbutton erroneous operation prevention device according to the present invention can cover the surface of the pushbutton that outputs a signal in accordance with the push operation, and the misoperation prevention plate is arranged so that the surface is along the vertical direction. And a support shaft that is disposed around the push button and rotatably supports the misoperation prevention plate, and has a through hole into which the support shaft is inserted in the misoperation prevention plate. A rotation angle of the erroneous operation preventing plate is defined as an angle from a position where the erroneous operation preventing plate covers the surface of the push button to a position where the erroneous operation preventing plate does not cover the surface of the push button, and A stopper that keeps the angle to be an acute angle, and a hole that is attached to a plate body provided in an operation panel of an elevator and into which the support shaft inserted into the through hole of the erroneous operation prevention plate is inserted, Push button And a pedestal attached to the plate portion disposed around, and the stopper is provided on the pedestal, and the stopper abuts against a side surface of the erroneous operation prevention plate to restrict the rotation of the erroneous operation prevention plate. When attaching to the plate body, the erroneous operation prevention plate is arranged in a posture at the time of covering the push button, the pedestal in that state is positioned on the plate body, and the pedestal is provided on the pedestal The pedestal is rotated until the stopper comes into contact with the lower side surface of the erroneous operation prevention plate, and the pedestal is attached to the plate body in that state .

  The present invention configured as described above is in a state in which the operation-preventing plate is disposed so that the surface thereof is along the vertical direction so as to face the surface of the push button to be covered, and on the horizontal line passing through the central portion of the operation-preventing plate Alternatively, if a support shaft that rotatably supports the erroneous operation prevention plate is disposed above the horizontal line, the stopper prevents the erroneous operation prevention plate from covering the surface of the push button from the position covering the surface of the push button. Therefore, when the push button is not required to be pressed, the push button is covered with an erroneous operation prevention plate to prevent the push button from being erroneously operated. When the push button is required to be pressed, the support shaft is By rotating the erroneous operation preventing plate as a center of rotation to a position where the push button is not covered, the push button can be pressed. In this case, since the rotation angle of the erroneous operation prevention plate is maintained at an acute angle by the stopper, when the pressing operation of the push button is not necessary, the erroneous operation prevention plate is rotated to its original position by its own weight with the support shaft as the rotation center. The push button can be covered again by the erroneous operation preventing plate.

That is, according to the present invention, when the erroneous operation preventing plate is disposed so as to face the surface of the push button, the arrangement region of the support shaft that supports the erroneous operation preventing plate is changed to the horizontal line region passing through the central portion of the erroneous operation preventing plate, and It can be the region above the horizon. Therefore, even when an interference object exists around the push button, it is possible to arrange the erroneous operation prevention plate at a position where it does not interfere with the interference object in the above-described region, and the interference object around the push button when the erroneous operation prevention plate is attached. The restriction by can be relaxed. In addition, since the stopper is provided on the base that holds the support shaft that rotatably supports the erroneous operation prevention plate, the number of members can be reduced.

  According to the present invention, in the above invention, a screw portion is formed on the support shaft, and a head for restricting movement of the erroneous operation preventing plate in the axial direction of the support shaft is provided on the support shaft, and the hole of the pedestal is provided. Is characterized by comprising a screw hole into which the screw portion of the support shaft is screwed.

  In the present invention configured as described above, when it is necessary to replace the erroneous operation prevention plate, the support shaft is rotated to unscrew the screw portion of the support shaft from the screw hole of the base, and the screw hole of the base By removing the support shaft from the base, the erroneous operation preventing plate can be easily removed from the base.

  Further, the present invention is the above invention, wherein a reinforcing material that reinforces the erroneous operation preventing plate against a pressing force applied to the erroneous operation preventing plate is provided on a portion of the back surface of the erroneous operation preventing plate that does not cover the push button. It is a feature.

  The present invention configured as described above can suppress the bending deformation of the erroneous operation preventing plate by the reinforcing material even when a pressing force is applied to the erroneous operation preventing plate due to mischief or the like, and improve the durability of the erroneous operation preventing plate. Can do.

  Further, the present invention is characterized in that, in the above-described invention, the erroneous operation prevention plate is provided with an eccentric weight that gives a return force to return the rotated erroneous operation prevention plate to its original position. It is said.

  The present invention configured as described above is in a state in which the erroneous operation preventing plate is disposed so as to face the surface of the push button, and in the region of the horizontal line passing through the center portion of the erroneous operation preventing plate or in the region above the horizontal line. When the pedestal is arranged so that the support shaft, that is, the hole of the pedestal, is positioned, the erroneous operation prevention plate is not required to be pressed after the erroneous operation prevention plate is rotated to the position where the push button is not covered. In addition to its own weight, the misoperation prevention plate can be rotated to its original position by the self weight of the eccentric weight, and the push button can be covered again by this misoperation prevention plate.

  In the present invention, the rotation angle of the erroneous operation prevention plate is defined as an angle from a position where the erroneous operation prevention plate covers the surface of the push button to a position where the erroneous operation prevention plate does not cover the surface of the push button, and the angle is an acute angle. Since the stopper that keeps it is provided, when the erroneous operation prevention plate is arranged so as to face the surface of the push button, the support shaft supporting the erroneous operation prevention plate passes through the central portion of the erroneous operation prevention plate. It can be a horizontal line region and a region above this horizontal line. Therefore, even when an interference object exists around the push button, it is possible to arrange the erroneous operation prevention plate at a position where it does not interfere with the interference object in the above-described region, and the interference object around the push button when the erroneous operation prevention plate is attached. The restriction due to can be relaxed more than before. As a result, it is possible to standardize the shape and dimensions of the erroneous operation prevention plate, the support shaft, and the stopper without being affected by the interference objects arranged around the push button. Mass production can be realized. In connection with this, this invention can reduce the manufacturing cost per unit | set of the said erroneous operation prevention apparatus compared with the past.

1 is a perspective view showing a first embodiment of a push button erroneous operation preventing apparatus according to the present invention. It is a side view which shows 1st Embodiment of this invention. 1 is an exploded perspective view showing a first embodiment of the present invention. It is a front view which shows the operating panel of the elevator car in which the pushbutton incorrect operation prevention apparatus which concerns on 1st Embodiment is attached. It is a figure explaining the procedure which attaches the pushbutton erroneous operation prevention apparatus which concerns on 1st Embodiment to the operation panel shown in FIG. It is a front view which shows the operating panel of the elevator car with which the pushbutton erroneous operation prevention apparatus which concerns on 1st Embodiment was attached. It is a figure which shows each example of the attachment form of the pushbutton erroneous operation prevention apparatus which concerns on 1st Embodiment. It is a side view which shows 2nd Embodiment of this invention. It is the perspective view which looked at 3rd Embodiment of this invention from the back surface side. It is a side view of 3rd Embodiment of this invention. It is a disassembled perspective view which shows 3rd Embodiment of this invention. It is a perspective view which shows the attachment relationship of the nameplate and eccentric weight with which 3rd Embodiment is equipped.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a push button erroneous operation preventing device according to the present invention will be described below with reference to the drawings.

  1 to 3 are views showing a first embodiment of a push button erroneous operation preventing apparatus according to the present invention, FIG. 1 is a perspective view, FIG. 2 is a side view, and FIG. 3 is an exploded perspective view. FIG. 4 is a front view showing an elevator car operating panel to which the pushbutton erroneous operation preventing device according to the first embodiment is attached.

  The first embodiment of the push button erroneous operation preventing device according to the present invention is provided on an operation panel of an elevator car as shown in FIG. For example, an interfering object 18 such as a braille nameplate is present immediately above the push button 17.

  As shown in FIGS. 1 to 3, the first embodiment of the present invention can cover the surface of the aforementioned push button 17 that outputs a signal in response to a pressing operation, and the surface is arranged along the vertical direction. An erroneous operation prevention plate 2 and a support shaft 16 disposed around the push button 17 and rotatably supporting the erroneous operation prevention plate 2 are provided, and the erroneous operation prevention plate 2 is provided with a through hole 13 into which the support shaft 16 is inserted. It is. In the first embodiment, the erroneous operation preventing plate 2 is pushed from the position where the erroneous operation preventing plate 2 covers the surface of the push button 17 as indicated by the arrow 7 in FIGS. The stopper 4 is provided so as to define an angle up to a position where the surface is not covered and to keep the angle at an acute angle (<90 °).

  In the first embodiment, the plate 22 has a hole into which the support shaft 16 inserted into the through hole 13 of the erroneous operation prevention plate 2 is inserted, for example, the screw hole 1 and is arranged around the push button 17. A pedestal 6 attached to the portion is provided, and the above-described stopper 4 is provided on the pedestal 6. The stopper 4 abuts against the side surface 7 </ b> A of the erroneous operation preventing plate 2 and restricts the rotation of the erroneous operation preventing plate 2.

  An adhesive portion 5 to be bonded to the plate body 22 is provided at the bottom of the base 6. Further, the support shaft 16 has a screw portion 14 that is screwed into the screw hole 1 of the base 6. As shown in FIGS. 2 and 3, the support shaft 16 has a head portion 15 that restricts the movement of the support shaft 16 in the axial direction of the erroneous operation prevention plate 2. The head portion 15 of the support shaft 16 covers the screw portion 14 so as to cover the screw portion 14 of the support shaft 16, the through hole 13 of the erroneous operation prevention plate 2, the screw hole 1 of the base 6, and the stopper 4 of the base 6. It is formed in a flat shape having a sufficiently large diameter as compared with the diameter. Since the shape of the head 15 of the support shaft 16 is flattened in this way, it is difficult for anyone other than the user of the push button 17 to notice that the erroneous operation prevention device 2 rotates about the support shaft 16. is doing.

  For example, a circular sticking surface 12 is formed on the erroneous operation preventing plate 2, and a sign indicating what purpose the above-described push button 17 is provided on the sticking surface 12, for example, a character sign A nameplate 10 having 8 is attached. The nameplate 10 has an adhesive portion 9 that adheres to the affixing surface 12 of the erroneous operation preventing plate 2 on the back surface. Further, as shown in FIG. 3, an alignment portion 11 of the nameplate 10 to be affixed to the affixing surface 12 is provided at the peripheral edge located on the through hole 13 side of the affixing surface 12 of the erroneous operation prevention plate 2. This alignment part 11 is provided so that it may protrude from the sticking surface 12 according to the thickness dimension of the nameplate 10, for example.

  2 is sufficiently larger than the size of the portion of the push button 17 protruding from the plate 22 of the operation panel. It is set.

  FIG. 5 is a diagram illustrating a procedure for attaching the push button erroneous operation preventing device according to the first embodiment to the operation panel shown in FIG. 4. In FIG. 5, the support shaft 16 is omitted for easy understanding.

  When the push button erroneous operation preventing device according to the first embodiment is attached to the plate body 22 in association with the push button 17 shown in FIG. 4, for example, an assembly assembled by removing only the name plate 10 from the state shown in FIG. As shown in FIG. 5A, first, the erroneous operation preventing plate 2 is arranged so that the push button 17 covers the back surface of the sticking surface 12 of the erroneous operation preventing plate 2, and the base 6 in that state is placed on the plate 6 Position on the body 22. Next, as shown by an arrow 20 in FIG. 5B, the pedestal 6 is supported until the stopper 4 provided on the pedestal 6 comes into contact with the lower side surface 7A of the erroneous operation preventing plate 2 (not shown). The shaft 16 is rotated counterclockwise about the rotation center. In this state, the bonding portion 5 of the base 6 is bonded to the plate body 22. Next, as shown in FIG. 5C, the name plate 10 in a state where the position of the character marking 8 is correctly adjusted is pasted on the pasting surface 12 of the erroneous operation preventing plate 2.

  In the first embodiment thus attached to the plate 22 of the operation panel shown in FIG. 4, when the pressing operation of the push button 17 is not required, as shown in FIG. 5 (c), The push button 17 is covered with the erroneous operation preventing plate 2. Thereby, an erroneous operation of the push button 17 can be prevented. When a push operation of the push button 17 is required, the user 23 of the push button 17 turns the erroneous operation preventing plate 2 counterclockwise to a position where the push button 17 is not covered, as indicated by an arrow 24 in FIG. What is necessary is just to rotate. Thereby, the pressing operation of the push button 17 becomes possible.

  For ease of explanation, for example, in the state shown in FIG. 5C, a support shaft 16 (not shown) is inserted here as illustrated in FIG. 5D. The pedestal 6 is attached to the plate body 22 so that the through hole 13 of the erroneous operation prevention plate 2, that is, the screw hole 1 of the pedestal 6 is located in a region on the horizontal line 25 passing through the center of the erroneous operation prevention plate 2. Shall.

  In the first embodiment, as shown in FIG. 5 (d), even when the erroneous operation preventing plate 2 is rotated in the direction of the arrow 24 until it contacts the stopper 4 of the base 6, the erroneous operation is prevented. The rotation angle of the plate 2 is an acute angle indicated by an arrow 3 smaller than 90 ° which is an angle formed by the horizontal line 25 and the perpendicular line 26.

  When the pressing operation of the push button 17 is no longer necessary, the erroneous operation preventing plate 2 is removed as shown by the arrow 27 in FIG. Then, it rotates to its original position by its own weight with a support shaft 16 (not shown) as a rotation center. Therefore, the push button 17 is again covered with the erroneous operation preventing plate 2.

  In addition, when the rotation angle of the erroneous operation preventing plate 2 is set to an obtuse angle larger than 90 °, the erroneous operation preventing plate 2 may be rotated too much to return to its original position under its own weight.

  FIG. 6 is a front view showing an elevator car operating panel to which the push button erroneous operation preventing device according to the first embodiment is attached.

  Although different from the mounting position shown in FIG. 5 described above, in the first embodiment, the interference 18 is obtained by the same procedure as shown in FIG. 5 described above, for example, as shown in FIG. It is possible to cover the push button 17 by attaching the base 6 to the position of the plate 22 of the operation panel that does not interfere with the operation panel.

  FIG. 7 is a diagram illustrating each example of a mounting form of the pushbutton erroneous operation preventing device according to the first embodiment. Even in FIG. 7, the support shaft 16 is omitted for easy understanding.

  As shown in FIGS. 7 (a), 7 (b), and 7 (c), there are various forms of attaching the push button erroneous operation preventing device according to the first embodiment to the plate 22 provided in the operation panel of the elevator car. Can take. As shown in FIG. 7 (a), the push button 17 on the operation panel is covered with the back surface of the sticking surface 12 of the erroneous operation preventing plate 2, and the central portion of the sticking surface 12 of the erroneous operation preventing plate 2 is In order to avoid the position of the interfering object 18 in addition to the form in which the pedestal 6 is disposed on the left side of the erroneous operation preventing plate 2 on the horizontal line 25 passing therethrough and the pedestal 6 is attached to the plate 22, for example, as shown in FIG. b) As shown in the figure, a pedestal 6 may be disposed above the erroneous operation preventing plate 2 and the pedestal 6 may be attached to the plate body 22, or as shown in FIG. 7 (c). As described above, the pedestal 6 may be disposed at the right side of the erroneous operation preventing plate 2 on the horizontal line 25 and the pedestal 6 may be attached to the plate body 22. That is, the push button erroneous operation preventing device according to the first embodiment is in a state where the push button 17 is covered with the back surface of the sticking surface 12 of the misoperation preventing plate 2 and passes through the center of the sticking surface 12 of the misoperation preventing plate 2. The pedestal 6 can be arranged so that the screw hole 1 of the pedestal 6, that is, the support shaft 16, is located in the region 29 and the upper region 29 of the horizontal line 25.

  As shown in FIG. 7 (d), the erroneous operation preventing plate 2 is urged in a direction covering the push button 17 between the stopper 4 of the base 6 and each of the side surfaces 7A of the erroneous operation preventing plate 2. When the elastic body 31 is provided, the push button 17 is covered with the back surface of the sticking surface 12 of the erroneous operation preventing plate 2, and the lower region 30 of the horizontal line 25 passing through the center portion of the sticking surface 12 of the erroneous operation preventing plate 2. Furthermore, the base 6 can be arranged so that the through hole 13 of the erroneous operation preventing plate 2 and the screw hole 1 of the base 6, that is, the above-described support shaft 16 (not shown) are located here.

  As shown in FIG. 7 (d), in the case where the elastic body 31 is provided, it is necessary to press the push button 17 after the erroneous operation preventing plate 2 is rotated to a position where the push button 17 is not covered. When it stops, the erroneous operation preventing plate 2 can be rotated to the original position by the urging force of the elastic body 31, and the push button 17 can be covered again by the erroneous operation preventing plate 2.

  According to the push button erroneous operation preventing apparatus according to the first embodiment configured as described above, as described above, the rotation angle of the erroneous operation preventing plate 2 is determined from the position where the erroneous operation preventing plate 2 covers the surface of the push button 17. The operation prevention plate 2 is provided with a stopper 4 that defines an angle up to a position where the surface of the push button 17 is not covered, and keeps the angle at an acute angle, so that an erroneous operation is prevented so as to face the surface of the push button 17. When the plate 2 is arranged, the arrangement region of the support shaft 16 that supports the erroneous operation prevention plate 2 can be set as a region of the horizontal line 25 passing through the central portion of the erroneous operation prevention plate 2 and an upper region 29 of the horizontal line 25. . Therefore, even when the interference 18 exists around the push button 17, the pedestal 6, that is, the erroneous operation prevention plate 2 can be disposed at a position that does not interfere with the interference 18 in the above-described region. It is possible to alleviate the restriction caused by the interference 18 around the push button 17 when the plate 22 is attached. As a result, it becomes possible to standardize the shape and dimensions of the base 6 including the erroneous operation prevention plate 2, the support shaft 16, and the stopper 4 without being affected by the interference 18 arranged around the push button 17. It is possible to realize mass production of the push button erroneous operation preventing device. Along with this, it is possible to reduce the manufacturing cost per unit of the pushbutton erroneous operation prevention device.

  In addition, since the stopper 4 is provided on the pedestal 6 that holds the support shaft 16 that rotatably supports the erroneous operation prevention plate 2, the number of members can be reduced, which is highly practical and convenient.

  Further, when it is necessary to replace the erroneous operation prevention plate 2 due to damage or the like, or when it is necessary to replace the push button 17 due to deterioration or failure of the durability, the screw hole 1 of the base 6 is inserted. By rotating the threaded support shaft 16 to unscrew the threaded portion 14 of the support shaft 16 from the screw hole 1 of the pedestal 6 and removing the support shaft 16 from the screw hole 1 of the pedestal 6, The prevention plate 2 can be easily removed from the base 6. Thereby, the replacement operation of the erroneous operation preventing plate 2 or the replacement operation of the push button 17 can be performed efficiently.

  FIG. 8 is a side view showing a second embodiment of the present invention.

  The second embodiment shown in FIG. 8 is a portion of the back surface of the erroneous operation prevention plate 2 that does not cover the push button 17, for example, an end of the erroneous operation prevention plate 2 that is located on the opposite side of the end portion side where the through hole 13 is formed. On the part side, a reinforcing member 32 is provided to reinforce the erroneous operation preventing plate 2 against the pressing force applied to the surface side of the erroneous operation preventing plate 2 as indicated by an arrow 2A. The thickness dimension of the reinforcing member 32 is set to a dimension equal to, for example, the dimension between the bottom surface of the base 6 and the back surface of the erroneous operation preventing plate 2. When the push button erroneous operation preventing device according to the second embodiment is attached to, for example, the plate body 22 provided in the elevator operation car cage described above, the back surface of the reinforcing member 32 comes into contact with the plate body 22. It has become. Other configurations are the same as those of the first embodiment described above.

  Since the basic configuration of the second embodiment configured in this way is the same as that of the first embodiment described above, the same effects as those of the first embodiment can be obtained. Further, in the second embodiment, even if a pressing force is applied to the surface of the erroneous operation prevention plate 2 due to mischief or the like, the reinforcing material 32 can suppress the deformation deformation of the erroneous operation prevention plate 2 to a small extent. Durability can be improved. Therefore, a highly reliable push button erroneous operation preventing device can be realized.

  9 to 12 are views showing a third embodiment of the present invention. FIG. 9 is a perspective view seen from the back side, FIG. 10 is a side view, FIG. 11 is an exploded perspective view, and FIG. 12 is a third embodiment. It is a perspective view which shows the attachment relationship of the nameplate and the eccentric weight with which it is equipped.

  In the third embodiment, an eccentric weight 35 is provided on the back side of the erroneous operation preventing plate 2, for example, to give a return force to return the rotated erroneous operation preventing plate 2 to its original position.

  That is, in the third embodiment, as shown in FIGS. 10 to 12, for example, the shaft 33 is provided at the center position of the back surface of the nameplate 10, and the shaft 33 is relatively positioned at the center position of the sticking surface 12 of the erroneous operation prevention plate 2. A through hole 34 is formed to be rotatably inserted. Further, for example, a circular plate-shaped eccentric weight 35 is provided on the back side of the erroneous operation preventing plate 2, and a bottomed hole into which the shaft 33 is fitted in the vicinity of the peripheral edge away from the center position of the eccentric weight 35. 36 is formed. As shown in FIG. 10, the thickness dimension of the eccentric weight 35 is set to a dimension smaller than the dimension between the bottom surface where the adhesive portion 5 of the base 6 is formed and the back surface of the erroneous operation preventing plate 2. is there. Further, for example, the bottom surface of the pedestal 6 and the eccentricity located on the bottom surface side of the push button 17 provided on the plate body 22 provided in the operation panel of the elevator car described above are compared with the projecting dimension from the plate body 22. The eccentric weight 35 is attached to the shaft 33 so that the dimension between the back surface of the weight 35 is increased. Other basic configurations are the same as those of the first embodiment described above.

  Since the basic configuration of the third embodiment configured in this way is the same as that of the first embodiment described above, the same effects as those of the first embodiment can be obtained. Further, the third embodiment is in a state where the back surface of the affixing surface 12 of the erroneous operation preventing plate 2 is arranged so as to face the surface of the push button 17 provided in the operation panel of the elevator car described above, for example. 7 (a) to (c), the screw of the support shaft 16, that is, the pedestal 6 is provided in the region of the horizontal line 25 passing through the central portion of the erroneous operation preventing plate 2 or in the region 29 above the horizontal line 25. When the pedestal 6 is arranged so that the hole 1 is positioned, the erroneous operation prevention plate 2 is not necessary when the push button 17 is not pressed after the erroneous operation prevention plate 2 is rotated to a position where the push button 17 is not covered. In addition to the own weight, the erroneous operation preventing plate 2 can be rotated to the original position by the own weight of the eccentric weight 35, and the push button 17 can be covered again by the erroneous operation preventing plate 2.

  In the third embodiment, the name plate 10 and the eccentric weight 35 are integrated with each other so that the name plate 10 and the eccentric weight 35 can rotate relative to the erroneous operation preventing plate 2, so that the erroneous operation preventing plate 2 is rotated. At the same time, the nameplate 10 can always maintain a fixed orientation by the weight of the eccentric weight 35. That is, the character mark 8 on the nameplate 10 can always be kept in the correct initial position where it is easy to read, and the convenience of the push button 17 to the user 23 can be enhanced. Therefore, there is no need for complicated operations such as re-attaching the name plate 10 to the attaching surface 12 of the erroneous operation preventing plate 2 to adjust the position of the character marking 8.

  Further, the thickness dimension of the eccentric weight 35 is made smaller than the dimension between the bottom surface of the pedestal 6 and the back surface of the erroneous operation preventing plate 2, and between the bottom surface of the pedestal 6 and the back surface of the eccentric weight 35. Since the dimension is set to be larger than the protruding dimension of the push button 17 from the plate 22, the eccentric weight 35 can be prevented from coming into contact with the push button 17 when the erroneous operation preventing plate 2 is pressed. A highly reliable push button erroneous operation preventing device can be realized.

DESCRIPTION OF SYMBOLS 1 Screw hole 2 Misoperation prevention board 4 Stopper 6 Base 7A Side surface 8 Character marking 10 Name plate 11 Positioning part 13 Through hole 14 Screw part 15 Head 16 Support shaft 17 Push button 18 Interfering object 22 Plate body 25 Horizontal line 26 Vertical line 29 Upper area | region 30 Lower region 31 Elastic body 32 Reinforcement material 33 Shaft 34 Through hole 35 Eccentric weight 36 Hole

Claims (4)

The surface of the push button that outputs a signal according to the pressing operation can be covered, and the erroneous operation preventing plate arranged so that the surface is along the vertical direction, and disposed around the push button, and the erroneous operation preventing plate is rotated. In a push button erroneous operation prevention device provided with a support shaft that can be supported, and provided with a through hole into which the support shaft is inserted into the erroneous operation prevention plate,
The rotation angle of the erroneous operation prevention plate is defined as an angle from a position where the erroneous operation prevention plate covers the surface of the push button to a position where the erroneous operation prevention plate does not cover the surface of the push button, and A stopper that keeps the angle sharp ,
The plate body portion which is attached to a plate body provided in an operation panel of an elevator, has a hole into which the support shaft inserted into the through hole of the erroneous operation prevention plate is inserted, and is disposed around the push button. And a pedestal attached to the
The stopper is provided on the pedestal, and the stopper is in contact with a side surface of the erroneous operation preventing plate to restrict rotation of the erroneous operation preventing plate.
When attaching to the plate body, the erroneous operation prevention plate is arranged in a posture at the time of covering the push button, the pedestal in that state is positioned on the plate body, and the stopper provided on the pedestal includes the stopper An apparatus for preventing erroneous operation of a push button, wherein the pedestal is rotated until it contacts the lower side surface of the erroneous operation preventing plate, and the pedestal is attached to the plate body in that state . In the push button erroneous operation preventing device according to claim 1,
A screw portion is formed on the support shaft, and a head for restricting movement of the erroneous operation prevention plate in the axial direction of the support shaft is provided on the support shaft.
The push button erroneous operation preventing device , wherein the hole of the pedestal comprises a screw hole into which the screw portion of the support shaft is screwed . In the push button erroneous operation preventing device according to claim 1 ,
An apparatus for preventing erroneous operation of a push button, wherein a reinforcing material that reinforces the erroneous operation prevention plate against a pressing force applied to the erroneous operation prevention plate is provided on a portion of the back surface of the erroneous operation prevention plate that is not covered with the push button. In the push button erroneous operation preventing device according to claim 1 ,
An erroneous operation prevention device for a push button , wherein the erroneous operation prevention plate is provided with an eccentric weight that gives a return force to return the rotated erroneous operation prevention plate to its original position .

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