JP2016117576A - Sill cleaning device for elevator and mounting jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sill cleaning device capable of replacing a brush without removing a door guide shoe from a frame of an elevator door.SOLUTION: A sill cleaning device 10 for an elevator which is fixed at an elevator door and in which the door is guided along a groove 3a by a door guide shoe 2 inserted in the groove 3a of the sill 3 includes: a frame 5 facing the groove 3a and for moving according to opening/closing of the door; a brush 11 having brush bristles 12 inserted in the groove 3a; and a fixing member 7 for fixing the brush 11 at a lower surface of the frame 5 in a detachable manner being independent from the door guide shoe 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an elevator sill cleaning device and a mounting jig in which the door is guided along a groove of a sill by a door guide shoe fixed to the door for the elevator.

  An elevator car provided in an elevator car and a landing includes a door panel arranged above the sill, and a door guide shoe inserted into a groove of the sill fixed to the door panel and opened upward. . The door panel is guided along the groove of the threshold by a door guide shoe. When getting on and off the elevator, the person or the article passes through the sill, so that the garbage falling from the person or the article may accumulate in the groove of the sill. As a result, a problem may occur in the opening / closing operation of the door. In order to avoid such problems, conventionally, elevator door sill cleaning apparatuses for cleaning the sill grooves have been proposed (see, for example, Patent Documents 1 and 2).

  Such a sill cleaning device includes a mounting bracket that is integral with a door guide shoe fixed to a door panel and faces a groove of the sill, and a brush that has brush hairs inserted into the groove and is fixed to the mounting bracket. And. In such a sill cleaning device, the brush moves in the groove as the door panel moves, so that dust in the groove is pushed out by the brush. As a result, the groove is cleaned.

JP-A-8-2864 JP 2010-42906 A

  As the brush is used, defects such as deterioration or wear occur, and therefore the brush needs to be replaced. However, in the sill cleaning device described above, the brush is indirectly fixed to the door via the door guide shoe. For this reason, when exchanging the brush, it is necessary to remove the door guide shoe from the door together with the brush. Here, the attachment position of the door guide shoe with respect to the door is adjusted so that the clearance between the door guide shoe and the groove of the threshold is appropriate. From such a background, it is necessary to adjust the door guide shoe every time the brush is replaced. For this reason, the replacement of the brush has led to an increase in work man-hours.

  It is an object of the present invention to provide a sill cleaning device and an attachment jig that allow a brush to be replaced without removing a door guide shoe from an elevator door frame.

The elevator sill cleaning device according to the present invention includes:
In an elevator sill cleaning device in which the door is guided along the groove by a door guide shoe fixed to the elevator door and inserted into the sill groove,
A frame that faces the groove and moves according to the opening and closing of the door;
A brush having brush bristles inserted into the groove;
A fixing member that removably fixes the brush to the lower surface of the frame independently of the door guide shoe.

  According to this configuration, when the fixing by the fixing member is released, the brush is removed from the frame. For this reason, the brush is fixed and removed irrespective of fixing and removing the door guide shoe. Therefore, the elevator sill cleaning device enables the brush to be replaced without removing the door guide shoe from the elevator door frame.

As one aspect of the elevator sill cleaning device according to the present invention,
The brush may be arranged on the front side in the closing direction of the door with respect to the door guide shoe.

  According to such a configuration, when the door opens the doorway of the elevator, the groove of the sill is opened upward in the opened doorway. In this state, the brush can be disposed below the frame from the open area of the groove. Thus, the elevator sill cleaning device allows the brushes to be replaced in the groove.

Another aspect of the elevator sill cleaning apparatus according to the present invention is as follows.
The fixing member includes a set screw having a shaft portion and a head portion,
The frame includes a mounting hole through which the shaft portion is inserted in the vertical direction, and a receiving portion that receives torque from the set screw around the mounting hole,
The brush includes a mounting piece in which the brush portion is planted and the shaft portion inserted through the mounting hole is screwed, a torque transmission portion connected to the mounting piece so as to be able to transmit the torque and hitting the receiving portion May be provided.

  According to this configuration, when the set screw is tightened to the attachment piece via the attachment hole of the frame, the shaft portion is screwed to the attachment piece, and as a result, the attachment piece is fixed to the frame. Further, when the set screw screwed to the fixed mounting piece is loosened, the screwing of the shaft portion is released, and as a result, the mounting piece is removed from the frame. Further, when the set screw is tightened or the set screw is loosened, torque from the set screw is received by the receiving part via the mounting piece and the torque transmitting part. As a result, even if torque is generated from the set screw, the brush does not rotate with respect to the frame. Therefore, the elevator sill cleaning device allows the set screw to be tightened and loosened against the mounting piece without rotating the brush together.

As another aspect of the elevator sill cleaning apparatus according to the present invention,
The receiving part may be configured by at least a part of the inner peripheral surface of the mounting hole.

  According to this configuration, the inner peripheral surface of the mounting hole is used as the receiving portion. Therefore, the elevator sill cleaning device does not need to be provided with a dedicated receiving portion, and can simplify the structure.

As still another aspect of the elevator sill cleaning apparatus according to the present invention,
The inner peripheral surface of the mounting hole has a flat surface,
The torque transmission unit may be a plane opposite to the plane.

  According to such a configuration, the elevator sill cleaning device only needs to have a flat surface for each of the receiving portion and the torque transmitting portion, and thus the configuration of the torque transmitting portion and the receiving portion can be simplified.

As still another aspect of the elevator sill cleaning apparatus according to the present invention,
The frame includes an insertion hole through which the entire bristle and the attachment piece are inserted in the vertical direction.
The attachment hole may be continuous with the insertion hole.

  According to this configuration, when the set screw is partially tightened to the mounting piece, the set screw is fixed to the mounting piece, and the shaft portion of the set screw is exposed between the head of the set screw and the mounting piece. In this state, the bristle and the attachment piece can enter the lower part of the frame from the upper part of the frame via the insertion hole while the head of the set screw is left above the frame. In this state, the bristle and the mounting piece can move along the mounting hole while the head of the set screw remains above the frame. As long as the head of the set screw is held, the brush is prevented from falling off. Therefore, the elevator sill cleaning device enables the brush to be replaced from above the frame without going through the sill groove.

As still another aspect of the elevator sill cleaning apparatus according to the present invention,
The receiving portion is an inner peripheral surface of the insertion hole;
The torque transmission unit includes a support plate that is coupled to the mounting piece so as to be able to transmit the torque and is disposed along the frame, and a protrusion that protrudes from the support plate into the insertion hole. Also good.

  According to this configuration, the inner peripheral surface of the insertion hole is used as the receiving portion. Therefore, the elevator sill cleaning device does not need to be provided with a dedicated receiving portion, and can simplify the structure.

As still another aspect of the elevator sill cleaning apparatus according to the present invention,
The torque transmission unit may be detachably connected to the mounting piece.

  According to such a configuration, the elevator sill cleaning device can improve the degree of freedom in assembling the brush.

As still another aspect of the elevator sill cleaning apparatus according to the present invention,
The protruding portion may be a protruding screw that is screwed onto the support plate.

  According to this structure, the length by which the protruding screw protrudes downward from the support plate changes according to the screwing amount of the protruding screw into the support plate. Therefore, the elevator sill cleaning device can adjust the degree of contact of the torque transmitting portion with the receiving portion.

As still another aspect of the elevator sill cleaning apparatus according to the present invention,
The protrusion may be bent and extend from the support plate.

  According to this configuration, the elevator sill cleaning device can easily configure the support plate and the protruding portion.

The mounting jig according to the present invention is a brush of the elevator sill cleaning device, wherein the mounting piece is a pair of side surfaces that are perpendicular to and parallel to an upper surface that is a mounting surface of the mounting piece to the frame. And a mounting jig for holding a brush having a pair of lower surfaces extending in opposite directions from the upper ends of the pair of side surfaces,
A pair of shaft-like portions are arranged with an interval substantially equal to the distance between the pair of side surfaces, fixed to each other, and extending in parallel.

  According to this configuration, when the mounting jig is attached to the brush so that the pair of shaft-like portions sandwich the two side surfaces of the mounting piece below the pair of lower surfaces of the mounting piece, the brush is supported by the mounting jig. Is done. When the brush is supported by the mounting jig, even if torque from the set screw is applied to the brush, the brush does not rotate with respect to the mounting jig. Therefore, the elevator sill cleaning device can hold and move the brush with the mounting jig, and can prevent rotation of the brush in fixing and removing the brush.

  According to the sill cleaning device and the mounting jig according to the present invention, it is possible to obtain an effect that the brush can be replaced without removing the door guide shoe from the elevator door frame.

It is a partial perspective view of the door for elevators and the sill provided with the sill cleaning device concerning a 1st embodiment. It is front sectional drawing of the door for elevators and the sill provided with the sill cleaning apparatus which concerns on 1st Embodiment when it sees from the head side of the closing direction of a door. It is a partial exploded perspective view of the sill cleaning device concerning a 1st embodiment. It is a partial exploded perspective view of the sill cleaning device concerning a 2nd embodiment. It is a partial exploded perspective view of the sill cleaning device concerning a 3rd embodiment. It is a partial exploded perspective view of the sill cleaning device concerning a 4th embodiment when a subassembly is above a large hole. It is a partial exploded perspective view of the sill cleaning device concerning a 4th embodiment when a subassembly is inserted in a large hole. It is a perspective view of the sill cleaning apparatus which concerns on 4th Embodiment. It is a partial exploded perspective view of the sill cleaning device concerning a 5th embodiment. It is a partial disassembled perspective view of the sill cleaning apparatus which concerns on 5th Embodiment when a semi-assembly is comprised. It is a perspective view of the sill cleaning apparatus which concerns on 5th Embodiment. It is the perspective view of the sill cleaning apparatus which concerns on 5th Embodiment seen from the downward direction. It is a partial exploded perspective view of the sill cleaning device concerning a 6th embodiment. It is a partial exploded perspective view of the sill cleaning apparatus concerning a 6th embodiment when a semi-assembly is constituted. It is a perspective view of the sill cleaning apparatus which concerns on 6th Embodiment. It is a perspective view of the sill cleaning device concerning a 6th embodiment seen from the lower part. It is a partial exploded perspective view of the sill cleaning device concerning a 7th embodiment. It is a partial perspective view of the door for elevators, the attachment jig, and the sill provided with the sill cleaning device according to the eighth embodiment. It is a perspective view of the brush and attachment jig | tool of the sill cleaning apparatus which concern on 8th Embodiment.

  Hereinafter, a sill cleaning device and a mounting jig according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the following embodiments, the same or corresponding parts are denoted by the same reference numerals, and description of the configuration of these parts is not basically repeated.

  With reference to FIGS. 1-3, the sill cleaning apparatus 10 which concerns on 1st Embodiment is demonstrated.

  In FIG. 1, the elevator door includes a door panel 1, a door guide shoe 2 that is fixed to the door panel 1 and guides the movement of the door panel 1, and a sill cleaning device 10 that cleans the groove 3 a of the sill 3. The door panel 1 is disposed above the threshold 3. The door panel 1 includes a side frame 4 that forms a side wall of the door panel 1, and a lower frame 5 that is fixed to the side frame 4 and forms a lower wall of the door panel 1. The threshold 3 has a groove 3a that opens upward.

  The door panel 1 is movable in the opening / closing direction along the threshold 3. The opening / closing direction includes a closing direction D1A and an opening direction D1B. The closing direction D1A is a direction from the lower right to the upper left in FIG. 1, and the opening direction D1B is a direction from the upper left to the lower right in FIG. The depth direction D2 of the door panel 1 is a direction orthogonal to the opening / closing direction and the vertical direction D3.

  FIG. 2 is a view of the door panel 1 and the sill 3 as viewed from the top side in the closing direction D1A (upper left side in FIG. 1). As shown in FIG. 2, the lower frame 5 is disposed at a distance from the sill 3 in the vertical direction and faces the groove 3 a. That is, the lower frame 5 is above the threshold 3 and is not in contact with the threshold 3. The door guide shoe 2 is disposed in the groove 3a, and an arm 18 extends from the door guide shoe 2. The arm 18 is fixed to the lower frame 5 by a fixing screw 6. As a result, the door guide shoe 2 is fixed to the door panel 1. For this reason, when the door panel 1 is driven by a driving mechanism (not shown), the door panel 1 is guided along the groove 3 a of the sill 3 by the door guide shoe 2.

  In FIG. 2, the sill cleaning device 10 includes a frame that faces the groove 3a and moves as the door is opened and closed, a brush 11, and a set screw 7 that removably fixes the brush to the lower surface of the frame. In the present embodiment, the lower frame 5 that is a part of the door panel 1 also serves as the frame of the sill cleaning device 10. The set screw 7 is provided as a fixing member for fixing the brush 11 to the lower frame 5. The set screw 7 is attached via a spring washer 8 and a flat washer 9.

  The brush 11 is disposed on the leading side in the closing direction D1A with respect to the door guide shoe 2 of the door guide shoe 2. In FIG. 2, the door guide shoe 2 is behind the brush 11. The brush 11 includes brush bristles 12 that come into contact with the grooves 3a and attachment pieces 13 in which the brush bristles 12 are planted.

  In FIG. 3, the threshold cleaning device 10 is disassembled. The set screw 7 includes a shaft portion 7a and a head portion 7b. The lower frame 5 includes a mounting round hole 50 through which the shaft portion 7a of the set screw 7 is inserted in the vertical direction D3. The mounting round hole 50 is a round hole penetrating the lower frame 5 up and down. The mounting round hole 50 is formed in such a size that the head 7 a or the flat washer 9 does not fall off from the mounting round hole 50. The attachment piece 13 has a screw hole 13b formed downward from the upper surface 13a. For this reason, the shaft portion 7 a can be screwed into the mounting piece 13. The mounting round hole 50 determines the fixing position of the brush 11. The mounting round hole 50 is disposed on the leading side in the closing direction D1A with respect to the door guide shoe 2.

  The fixing of the brush 11 will be described. First, as shown in FIG. 3, the brush 11 is disposed below the lower frame 5, and the set screw 7 is disposed above the lower frame 5. In this state, the shaft portion 7 a of the set screw 7 is screwed into the screw hole 13 b of the mounting piece 13 through the mounting round hole 50. When the set screw 7 is screwed into the mounting piece 13 by tightening the set screw 7, the brush 11 is fixed to the lower surface of the lower frame 5. In this way, the assembly of the sill cleaning device 10 is completed.

  The removal of the brush 11 will be described. The set screw 7 is removed from the mounting piece 13 by loosening the set screw 7 screwed to the mounting piece 13. As a result, the brush 11 is removed from the lower frame 5.

  With reference to FIG. 4, the threshold cleaning apparatus 10 which concerns on 2nd Embodiment is demonstrated.

  In FIG. 4, the threshold cleaning apparatus 10 according to the second embodiment is disassembled. The sill cleaning device 10 according to the second embodiment includes a lower frame 5, a brush 11, and a set screw 7. The structure of the attachment piece 11 is changed between the sill cleaning device 10 according to the second embodiment and the sill cleaning device 10 according to the first embodiment.

  The attachment piece 13 according to the second embodiment has a cylindrical shape. For this reason, even if the attachment piece 13 rotates when the set screw 7 is tightened or loosened, the width in the depth direction D2 of the brush 11 does not change. For this reason, it can prevent that the brush 11 contacts with the internal peripheral surface of the groove | channel 3a by rotation of the brush 11. FIG.

  With reference to FIG. 5, the threshold cleaning apparatus 10 which concerns on 3rd Embodiment is demonstrated.

  In FIG. 5, the sill cleaning device 10 according to the third embodiment is disassembled. The sill cleaning device 10 according to the third embodiment includes a lower frame 5, a brush 11, and a set screw 7. Between the sill cleaning device 10 according to the third embodiment and the sill cleaning device 10 according to the first embodiment, the configuration of the mounting holes and the configuration of the mounting pieces 11 are changed.

  The lower frame 5 includes mounting square holes 51 as mounting holes instead of the mounting round holes 50. The mounting square hole 51 is a through hole through which the shaft portion 7a of the set screw 7 is inserted in the vertical direction D3. The inner peripheral surface 51a of the mounting square hole 51 is configured by four planes, and the mounting square hole 51 has a quadrangular shape in plan view. The mounting square hole 51 is formed in such a size that the head 7 a or the flat washer 9 does not fall off the lower frame 5. The mounting square hole 51 is disposed on the leading side in the closing direction D1A with respect to the door guide shoe 2.

  The attachment piece 13 includes a piece main body 14 having a rectangular parallelepiped shape, and a short step portion 15 protruding upward from the piece main body 14 and having a rectangular parallelepiped shape. The dimension of the short step part 15 is generally smaller than the dimension of the piece main body 14, and the attachment piece 13 has a stepped rectangular parallelepiped shape. The short step portion 15 has a top surface 13a having a quadrangular shape and a side surface 15a extending downward from the top surface 13a. The side surface 15a is composed of four planes. The short step portion 15 is inserted into the mounting square hole 51, and prevents the brush 11 from rotating in cooperation with the inner peripheral surface 51 a of the mounting square hole 51. The piece body 14 has an upper surface 14a extending laterally from the lower end of the side surface 15a. The upper surface 14a is a band-like surface that draws a quadrilateral outline.

  The rotation prevention structure of the brush 11 will be described. The inner peripheral surface 51 a of the mounting square hole 51 is a receiving portion that receives torque from the set screw 7 around the mounting square hole 51. A side surface 15a of the short step portion 15 is a torque transmission portion that transmits torque from the set screw 7 and hits the inner peripheral surface 51a. When the brush 11 is attached to the lower frame 5, the short step portion 15 is inserted into the attachment square hole 51, and the side surface 15 a faces the inner peripheral surface 51 a of the attachment square hole 51. More specifically, each of the four planes constituting the side surface 15 a faces each of the four planes constituting the inner peripheral surface 51 a of the attachment square hole 51. Here, there is almost no gap between the side surface 15a and the inner peripheral surface 51a. For this reason, the torque from the set screw 7 is received by the inner peripheral surface 51 a of the mounting square hole 51 through the side surface 15 a of the short step portion 15.

  With reference to FIGS. 6-8, the sill cleaning apparatus 10 which concerns on 4th Embodiment is demonstrated.

  In FIG. 6, the sill cleaning device 10 according to the fourth embodiment is partially disassembled. The sill cleaning device 10 according to the fourth embodiment includes a lower frame 5, a brush 11, and a set screw 7. The structure of the attachment hole is changed between the sill cleaning device 10 according to the fourth embodiment and the sill cleaning device 10 according to the first embodiment. Moreover, the insertion hole 53 is added to the sill cleaning apparatus 10 which concerns on 4th Embodiment.

  The lower frame 5 includes a long mounting hole 52 instead of the mounting round hole 50 as a mounting hole. Further, the lower frame 5 includes an insertion hole 53 through which the entire bristles 12 and the attachment piece 13 are inserted in the vertical direction. The attachment long hole 52 is continuous with the insertion hole 53, and the insertion hole 53 and the attachment long hole 52 constitute one dharma hole 70. The dharma hole 70 is disposed on the leading side in the closing direction D1A with respect to the door guide shoe 2. The attachment long hole 52 extends from the insertion hole 53 in the opening direction D1B.

  The rotation prevention structure of the brush 11 will be described. The inner peripheral surface 52 a of the attachment long hole 52 is a receiving portion that receives torque from the set screw 7 around the attachment long hole 52. Here, the inner peripheral surface 52a of the attachment long hole 52 has a pair of planes facing each other in the depth direction D2. When the brush 11 is attached to the lower frame 5, the short step portion 15 is inserted into the attachment square hole 51, and the two planes of the side surface 15a face a pair of planes in the inner peripheral surface 52a. More specifically, a pair of planes facing each other in the depth direction D2 on the side surface 15a faces a pair of planes facing each other in the depth direction D2 on the inner peripheral surface 52a. Here, in the depth direction D2, there is almost no gap between the side surface 15a and the inner peripheral surface 52a. For this reason, the torque from the set screw 7 is received by the inner peripheral surface 52 a of the attachment long hole 52 through the side surface 15 a of the short step portion 15.

  Next, fixing of the brush 11 in the sill cleaning apparatus 10 will be described. As shown in FIG. 6, prior to fixing the brush 11, the subassembly 100 is configured by partially tightening the set screw 7 to the attachment piece 13. In the subassembly 100, the shaft portion 7 a is exposed between the head 7 b of the set screw 7 and the attachment piece 13.

  Next, as shown in FIG. 7, the subassembly 100 is inserted into the insertion hole 53. Further, when the exposed shaft portion 7 a is inserted into the attachment slot 52, the subassembly 100 can move along the attachment slot 52.

  As shown in FIG. 8, when the subassembly 100 is in a desired position on the attachment slot 52, the set screw 7 of the subassembly 100 is tightened. At this time, as described above, the torque from the set screw 7 is received by the inner peripheral surface 52 a of the attachment long hole 52. For this reason, the brush 11 does not rotate with respect to the lower frame 5 as the set screw 7 rotates. When the set screw 7 is screwed into the mounting piece 13 by tightening the set screw 7, the brush 11 is fixed to the lower frame 5. In this way, the assembly of the sill cleaning device 10 is completed.

  The removal of the brush 11 in the sill cleaning device 10 will be described. First, the subassembly 100 is configured by loosening the set screw 7 screwed to the mounting piece 13. Next, the subassembly 100 is moved into the insertion hole 53 along the attachment slot 52. Finally, the subassembly 100 is extracted upward from the insertion hole 53.

  With reference to FIGS. 9-12, the sill cleaning apparatus 10 which concerns on 5th Embodiment is demonstrated.

  In FIG. 9, the sill cleaning apparatus 10 according to the fifth embodiment is disassembled. The sill cleaning device 10 according to the fifth embodiment includes a lower frame 5, a brush 11, and a set screw 7. Between the sill cleaning device 10 according to the fifth embodiment and the sill cleaning device 10 according to the fourth embodiment, the configuration of the mounting holes, the configuration of the mounting pieces, and the configuration of the torque transmission unit are changed.

  The brush 11 according to the fifth embodiment includes brush bristles 12, an attachment piece 13, and a torque transmission unit 20 that is fixed to the attachment piece 13 and that transmits torque from the set screw 7. The attachment piece 13 according to the fifth embodiment includes a piece main body 14 having a rectangular parallelepiped shape, and a long step portion 16 protruding upward from the piece main body 14 and having a rectangular parallelepiped shape.

  The dimension of the long step part 16 is generally smaller than the dimension of the piece main body 14, and the attachment piece 13 has a stepped rectangular parallelepiped shape. That is, the long step portion 16 according to the fifth embodiment has a shape similar to the shape of the short step portion 15 according to the third embodiment. However, the height of the long step portion 16 is larger than the height of the short step portion 15. The long step portion 16 has a top surface 13a having a rectangular shape and a side surface 16a extending downward from the top surface 13a. The side surface 16a is composed of four planes.

  The torque transmission unit 20 includes a support plate 21 and a protruding screw 24. The torque transmission unit 20 is detachably connected to the mounting piece 13. The support plate 21 is a plate-like member and includes a through hole 22 that is a square hole and a screw hole 23. The inner peripheral surface of the through hole 22 is configured by four planes, and the through hole 22 has a quadrangular shape in plan view. The through hole 22 is formed in such a size that the head 7 a or the flat washer 9 does not fall off the lower frame 5. Further, the screw hole 23 is configured to be screwed with the protruding screw 24.

  The lower frame 5 includes a round mounting hole 54 instead of the mounting round hole 50 or the mounting long hole 52 as a mounting hole. The attachment large hole 54 is disposed on the leading side in the opening direction D1B from the insertion hole 53 and has a size through which the long step portion 16 is inserted. The large mounting hole 54 is continuous with the insertion hole 53, and the insertion hole 53 and the large mounting hole 54 constitute one dharma hole 70.

  Next, fixing of the brush 11 in the sill cleaning apparatus 10 will be described.

  As shown in FIG. 10, prior to fixing the brush 11, the subassembly 100 is configured by partially tightening the set screw 7 to the mounting piece 13 via the support plate 21. In the subassembly 100, the shaft portion 7 a is exposed between the support plate 21 and the attachment piece 13. In this state, the subassembly 100 is inserted into the insertion hole 53. Further, the exposed shaft portion 7 a is inserted into the attachment large hole 54. As the shaft portion 7a moves in the opening direction D1B, the support plate 21 also moves in the opening direction D1B, and the screw hole 23 of the support plate 21 reaches above the insertion hole 53. In this state, when the set screw 7 is pulled upward, the long step portion 16 passes through the attachment large hole 54 and is inserted into the through hole 22 of the support plate 21.

  As shown in FIG. 11, when the long step portion 16 is in the through hole 22, the protruding screw 24 is screwed to the support plate 21.

  As a result, as shown in FIG. 12, the protruding screw 24 hits the inner peripheral surface of the insertion hole 53. In this state, the set screw 7 of the subassembly 100 is tightened. When the shaft portion 7 a is screwed to the attachment piece 13 by tightening the set screw 7, the brush 11 is fixed to the lower frame 5. In this way, the assembly of the sill cleaning device 10 is completed.

  The removal of the brush 11 in the sill cleaning device 10 will be described. First, the protruding screw 24 is removed from the support plate 21. Next, by loosening the set screw 7 screwed to the mounting piece 13, the subassembly 100 in which the shaft portion 7a is exposed is configured. Next, the long step portion 16 is pulled out from the large mounting hole 54 so that only the shaft portion 7 a remains in the large mounting hole 54. Next, the subassembly 100 is moved into the insertion hole 53. Finally, the subassembly 100 is extracted upward from the insertion hole 53.

  With reference to FIG. 9, the detent structure of the brush 11 will be described. The inner peripheral surface 54 a of the large mounting hole 54 is a receiving portion that receives torque from the set screw 7 around the large mounting hole 54. When the sill cleaning device 10 is assembled, the protruding screw 24 protruding from the support plate 21 hits the inner peripheral surface 53 a of the insertion hole 53. Here, the radius of curvature of the inner peripheral surface 53 a is smaller than the length from the axis of the set screw 7 to the axis of the protruding screw 24. For this reason, the inner peripheral surface 53 a prevents the protruding screw 24 from moving due to the torque around the set screw 7. Further, when the sill cleaning device 10 is assembled, the long step portion 16 is inserted into the through hole 22 through the attachment large hole 54, and the side surface 16 a faces the inner peripheral surface 22 a of the through hole 22. More specifically, each of the four planes constituting the side surface 16a opposes each of the four planes constituting the inner peripheral surface 22a. Here, there is almost no gap between the side surface 16a and the inner peripheral surface 22a. Therefore, the torque from the set screw 7 is received by the inner peripheral surface 53 a via the attachment piece 13 and the torque transmission portion 20. For this reason, the brush 11 does not rotate with the rotation of the set screw 7.

  With reference to FIGS. 13 to 16, the sill cleaning device 10 according to the sixth embodiment will be described.

  In FIG. 13, the sill cleaning apparatus 10 according to the sixth embodiment is disassembled. The sill cleaning device 10 according to the sixth embodiment includes a lower frame 5, a brush 11, and a set screw 7. The configuration of the torque transmission unit is changed between the sill cleaning device 10 according to the sixth embodiment and the sill cleaning device 10 according to the fifth embodiment.

  The torque transmission unit 20 includes a support plate 21 and a protrusion 25. The torque transmission unit 20 is detachably connected to the mounting piece 13. The protruding portion 25 extends from the support plate 21 while being bent. When the support plate 21 is disposed on the lower frame 5, the protruding portion 25 protrudes below the support plate 21. That is, the support plate 21 according to the sixth embodiment does not have the screw hole 23 according to the fifth embodiment, but the support plate 21 is provided with the protruding portion 25.

  Next, fixing of the brush 11 in the sill cleaning apparatus 10 will be described. The sill cleaning device 10 according to the sixth embodiment is also assembled in the same manner as the sill cleaning device 10 according to the fifth embodiment.

  As shown in FIG. 14, prior to fixing the brush 11, the subassembly 100 is configured by tightening the set screw 7 partially onto the mounting piece 13 via the support plate 21. In the subassembly 100, the shaft portion 7 a is exposed between the support plate 21 and the attachment piece 13. In this state, the subassembly 100 is inserted into the insertion hole 53. In this state, the exposed shaft portion 7 a is inserted into the attachment large hole 54. As the shaft portion 7a moves in the opening direction D1B, the torque transmitting portion 20 also moves in the opening direction D1B, and the protruding portion 25 reaches above the insertion hole 53. In this state, when the set screw 7 is pulled upward, the long step portion 16 passes through the attachment large hole 54 and is inserted into the through hole 22 of the support plate 21.

  As shown in FIG. 15, the protrusion 25 is in the insertion hole 53 when the long step portion 16 is in the attachment large hole 54.

  As shown in FIG. 16, as a result, the protrusion 25 hits the inner peripheral surface 53 a of the insertion hole 53. In this state, the set screw 7 of the subassembly 100 is tightened. When the set screw 7 is screwed into the mounting piece 13 by tightening the set screw 7, the brush 11 is fixed to the lower frame 5. In this way, the assembly of the sill cleaning device 10 is completed.

  With reference to FIG. 13, the detent structure of the brush 11 is demonstrated. When the sill cleaning device 10 is assembled, the protruding portion 25 protruding from the support plate 21 hits the inner peripheral surface 53 a of the insertion hole 53. Here, the radius of curvature of the inner peripheral surface 53 a is smaller than the length from the axis of the set screw 7 to the axis of the protruding portion 25. For this reason, the inner peripheral surface 53 a prevents the protruding screw 24 from moving due to the torque around the set screw 7. Further, when the sill cleaning device 10 is assembled, the long step portion 16 is inserted into the through hole 22 through the attachment large hole 54. Therefore, the torque from the set screw 7 is received by the inner peripheral surface 53 a via the attachment piece 13 and the torque transmission portion 20. For this reason, the brush 11 does not rotate with the rotation of the set screw 7.

  With reference to FIG. 17, the threshold cleaning apparatus 10 which concerns on 7th Embodiment is demonstrated.

  In FIG. 17, the threshold cleaning apparatus 10 according to the seventh embodiment is disassembled. The sill cleaning device 10 according to the seventh embodiment includes a lower frame 5, a brush 11, and a set screw 7. The structure of the attachment hole is changed between the sill cleaning device 10 according to the seventh embodiment and the sill cleaning device 10 according to the first embodiment.

  The lower frame 5 includes, as an attachment hole, an attachment long hole 55 through which the shaft portion 7a of the set screw 7 is inserted in the vertical direction instead of the attachment round hole 50. The attachment long hole 55 is a long hole extending in the depth direction D2. For this reason, the brush 11 can be fixed to the frame 5 at an arbitrary position in the attachment long hole 55.

  With reference to FIG. 18, FIG. 19, the sill cleaning apparatus 10 which concerns on 8th Embodiment is demonstrated.

  FIG. 18 shows the sill cleaning device 10 and the attachment jig 60 according to the eighth embodiment. The sill cleaning device 10 according to the eighth embodiment includes a lower frame 5, a brush 11, and a set screw 7. Further, the mounting bracket 60 according to the eighth embodiment is a jig for holding the brush 11 of the sill cleaning device 10 according to the eighth embodiment. The structure of the attachment piece 11 is changed between the sill cleaning device 10 according to the eighth embodiment and the sill cleaning device 10 according to the first embodiment.

  In FIG. 19, the attachment piece 13 has a shape in which a pair of parallel slits 30 </ b> R and 30 </ b> L extending along a predetermined direction is formed in a rectangular parallelepiped.

  The shape of the attachment piece 13 will be described with reference to the posture of the brush 11 shown in FIG. In FIG. 19, the posture of the brush 11 is the same as the posture when fixed to the lower frame 5. For convenience of explanation, regarding the direction related to the attachment piece 13, the opening and closing direction is the front-rear direction of the attachment piece 13, and the depth direction D <b> 2 is the left-right direction of the attachment piece 13.

  An upper surface 13 a of the attachment piece 13 is an attachment surface of the attachment piece 13 to the lower frame 5. The attachment piece 13 has a screw hole 13b formed downward from the upper surface 13a. The axial direction of the screw hole 13b is equal to the up-down direction D3. In the attachment piece 13, a pair of slits 30R and 30L extend in the front-rear direction. The slits 30 </ b> R and 30 </ b> L are recesses formed on the outer surface of the attachment piece 13. The inner surface of the right slit 30R includes a right side surface 31R extending in the front-rear direction, a right lower surface 32R extending rightward from the upper end of the right side surface 31R, and a right upper surface 33R extending rightward from the lower end of the right side surface 31R. Similarly, the inner surface of the left slit 30L includes a left side surface 31L extending in the front-rear direction, a left lower surface 32L extending from the upper end of the left side surface 31L to the left side, and a left upper surface 33L extending from the lower end of the left side surface 31L to the left side. The right side surface 31R and the left side surface 31L are a pair of surfaces that are perpendicular to the upper surface 13a serving as a mounting surface and are parallel to each other. The right lower surface 32R and the left lower surface 32L are a pair of surfaces extending in opposite directions from the upper ends of the right side surface 31R and the left side surface 31L.

  Next, the shape of the mounting jig 60 will be described. In FIG. 19, the posture of the attachment jig 60 is the same as the posture when attached to the brush 11 fixed to the lower frame 5. The mounting jig 60 has a pair of shaft-like portions 61R and 61L, a connecting portion 62, and a handle portion 63. The pair of shaft-like parts 61R and 61L extend in parallel along the front-rear direction. The pair of shaft-shaped portions 61R and 61L extend in the front-rear direction from one end of the connecting portion 62, and the handle portion 63 extends upward from the other end of the connecting portion 62. The handle part 63 is a part for the operator to grasp the mounting jig with a hand or the like. The connecting portion 62 fixes the pair of shaft-shaped portions 61R and 61L to each other at an interval in the depth direction D2, and connects the pair of shaft-shaped portions 61R and 61L. Here, the interval W60 between the pair of shaft portions 61R and 61L is substantially equal to or slightly larger than the interval W13 between the right side surface 31R and the left side surface 31L of the attachment piece 13. For this reason, the attachment piece 13 can enter between a pair of shaft-like parts 61R and 61L.

  The attachment jig 60 can hold the brush 11 by inserting the pair of shaft-like portions 61R and 61L of the attachment jig 60 into the pair of slits 30R and 30L of the attachment piece 13. The operator can hold the brush 11 by grasping the handle portion 63 by hand. Further, the width of the mounting jig 60 in the depth direction D2 is formed to be narrower than the width of the groove 3a. For this reason, the attachment jig 60 holding the brush 11 can be inserted into the groove 3a.

  The operation and effect of the sill cleaning device and the mounting jig according to the present embodiment will be described.

  The sill cleaning device 10 according to each of the first to eighth embodiments includes a door guide shoe 2 fixed to an elevator door and inserted into the groove 3a of the sill 3 so that the door extends along the groove 3a. In the elevator sill cleaning device guided in this manner, the frame 5 that faces the groove 3a and moves according to the opening and closing of the door, the brush 11 having the brush hairs 12 inserted into the groove 3a, and the door guide A fixing member (set screw 7) for removably fixing the brush 11 to the lower surface of the frame 5 independently of the shoe 2 is provided.

  According to this configuration, when the fixing by the fixing member (7) is released, the brush 11 is removed from the frame 5. For this reason, the brush 11 is fixed and removed regardless of the fixation and removal of the door guide shoe 2. Therefore, the sill cleaning device 10 according to the first to eighth embodiments allows the brush 11 to be replaced without removing the door guide shoe 2 from the elevator door frame 5.

  Here, the following changes are possible. The frame 5 according to each of the first to eighth embodiments is a frame that is a part of the door panel 1. The frame according to the present invention is not limited as long as it is a frame that faces the groove 3a and moves according to the door. As the frame according to the present invention, for example, a frame fixed to the door separately from the door, or a frame configured to be interlocked with the door can be adopted. The fixing member according to each of the first to eighth embodiments is a set screw 7. The fixing member according to the present invention is not limited as long as it is a fixing member that detachably fixes the brush to the lower surface of the frame. As the fixing member according to the present invention, a snap-fit mechanism that detachably fixes the brush, a fitting structure that makes the brush detachable by applying a certain external force, or an adhesive can be employed.

  In the sill cleaning apparatus 10 according to each of the first to eighth embodiments, the brush 11 is disposed on the leading side in the closing direction D1A with respect to the door guide shoe 2.

  According to such a configuration, when the door opens the entrance of the elevator, the groove 3a of the sill 3 is opened upward at the opened entrance. In this state, the brush 11 can be disposed below the frame 5 from the open area of the groove 3a. Therefore, according to the sill cleaning device 10 according to each of the first to eighth embodiments, the brush 11 can be replaced in the groove 3a.

  The threshold cleaning apparatus 10 according to each of the third to sixth embodiments includes a set screw 7 having a shaft portion 7a and a head portion 7b as the fixing member (7), and the frame 5 includes the shaft portion 7a. A mounting hole (mounting square hole 51, mounting long hole 52, mounting large hole 54) to be inserted in the vertical direction, and a receiving portion for receiving torque from the set screw 7 around the mounting hole (51, 52, 54) And the brush 11 has an attachment piece into which the brush bristles 12 are implanted and the shaft portion 7a inserted through the attachment holes (51, 52, 54) is screwed. 13 and a torque transmission part (side face 16a, torque transmission part 20) connected to the mounting piece 13 so as to be able to transmit the torque and hitting the receiving parts (51a, 52a, 53a).

  According to this configuration, when the set screw 7 is tightened to the attachment piece 13 via the attachment holes (51, 52, 54) of the frame 5, the shaft portion 7a is screwed to the attachment piece 13, and as a result, the attachment piece 13 is fixed to the frame 5. Further, when the set screw 7 screwed to the fixed mounting piece 13 is loosened, the screwing of the shaft portion 7 a is released, and as a result, the mounting piece 13 is removed from the frame 5. Further, when the set screw 7 is tightened or the set screw 7 is loosened, the torque from the set screw 7 is received by the receiving parts (51a, 52a, 52) via the mounting piece 13 and the torque transmitting parts (16a, 20). 53a). As a result, even if torque from the set screw 7 is generated, the brush 11 does not rotate with respect to the frame 5. Therefore, the threshold cleaning apparatus 10 according to the third to sixth embodiments enables the set screw 7 to be tightened and loosened with respect to the attachment piece 13 without rotating the brush 11 together.

  Here, the following changes are possible. The receiving parts according to the third to sixth embodiments are inner peripheral surfaces 51a, 52a, 53a. The receiving part which concerns on this invention will not be limited if it is a receiving part which receives the torque from a set screw around an attachment hole. Further, the torque transmission units according to the third to sixth embodiments are the side surface 16 a and the torque transmission unit 20. The torque transmission unit according to the present invention is not limited as long as it is fixed to the mounting piece, transmits torque, and hits the receiving unit. As the receiving portion and the torque transmitting portion according to the present invention, for example, a pin protruding downward from the frame and a protruding piece protruding sideways from the mounting piece and hitting the pin, or an inner surface and mounting piece of a recess formed on the lower surface of the frame It is possible to employ a protruding portion that protrudes upward from and enters the recess.

  In the sill cleaning apparatus 10 according to each of the third and fourth embodiments, the receiving portion is configured by at least a part of the inner peripheral surface (51a, 52a) of the mounting hole (51, 52).

  According to this configuration, the inner peripheral surfaces (51a, 52a) of the mounting holes (51, 52) are used as receiving portions. Therefore, the threshold cleaning apparatus 10 according to each of the third and fourth embodiments does not need to be provided with a dedicated receiving portion, and can simplify the structure.

  In the sill cleaning device 10 according to each of the third and fourth embodiments, the inner peripheral surfaces (51a, 52a) of the mounting holes (51, 52) have a flat surface, and the torque transmitting portion is the flat surface. It is the plane (side surface 16a) which opposes.

  In the sill cleaning device 10 according to each of the third and fourth embodiments, the receiving portions (51a, 52a) and the torque transmitting portion (16a) only need to have a flat surface, so the configurations of the torque transmitting portion and the receiving portion are the same. It can be simplified.

  Here, the following changes are possible. The receiving portion according to the third embodiment is an inner peripheral surface 51a having four planes, and the receiving portion according to the fourth embodiment is an inner peripheral surface 52a having two planes. The receiving part according to the present invention is not limited as long as it has a flat surface. Moreover, the torque transmission part which concerns on each of 3rd and 4th embodiment is the side surface 16a which has four planes. The torque transmission part which concerns on this invention will not be limited if it has a plane. As the receiving portion and the torque transmitting portion according to the present invention, for example, a surface including both a flat surface and a curved surface can be employed.

  In the sill cleaning device 10 according to each of the fourth to sixth embodiments, the frame 5 includes an insertion hole 53 through which the entire bristle 12 and the attachment piece 13 are inserted in the vertical direction D3. 52, 54) are continuous with the insertion hole 53.

  According to this configuration, when the set screw 7 is partially tightened to the mounting piece 13, the set screw 7 is fixed to the mounting piece 13, and the set screw is interposed between the head 7 a of the set screw 7 and the mounting piece 13. 7 shaft portion 7a is exposed. In this state, the bristle 12 and the mounting piece 13 enter the lower part of the frame 5 from the upper part of the frame 5 via the insertion hole 53 while the head 7b of the set screw 7 is left above the frame 5. Can do. In this state, the bristle 12 and the attachment piece 13 can move along the attachment holes (52, 54) while the head 7b of the set screw 7 is left above the frame 5. As long as the head 7b of the set screw 7 is held, the brush 11 is prevented from falling off. Therefore, each of the sill cleaning apparatuses 10 according to the fourth to sixth embodiments makes it possible to replace the brush 11 from above the frame 5 without going through the groove 3 a of the sill 3.

  In the sill cleaning device 10 according to each of the fifth and sixth embodiments, the receiving portion is an inner peripheral surface 53a of the insertion hole 53, and the torque transmitting portion 20 is capable of transmitting the torque to the mounting piece. 13 and a support plate 21 that is disposed along the frame 5, and projecting portions (projecting screw 24, projecting portion 25) that project from the support plate 21 into the insertion hole 53.

  According to this configuration, the inner peripheral surface 53a of the insertion hole 53 is used as a receiving portion. According to the sill cleaning device 10 according to each of the fifth and sixth embodiments, there is no need to provide a dedicated receiving portion, and the structure can be simplified.

  In the sill cleaning device 10 according to each of the fifth and sixth embodiments, the torque transmission unit 20 is detachably connected to the mounting piece 13.

  Therefore, the threshold cleaning apparatus 10 according to each of the fifth and sixth embodiments can improve the degree of freedom in assembling the brush 11.

  In the sill cleaning apparatus 10 according to the fifth embodiment, the protruding portion is a protruding screw 24 screwed into the support plate 21.

  Therefore, the sill cleaning apparatus 10 according to the fifth embodiment can adjust the degree of contact of the torque transmission unit 20 with the receiving portion (53a).

  In the sill cleaning apparatus 10 according to the sixth embodiment, the protrusion 25 is bent and extends from the support plate.

  Therefore, the sill cleaning apparatus 10 according to the sixth embodiment can easily configure the support plate 21 and the protruding portion 25.

  The attachment jig 60 according to the eighth embodiment is the brush 11 of the sill cleaning device 10 according to the eighth embodiment, and the attachment piece 13 is an upper surface that is an attachment surface of the attachment piece 13 to the frame 5. A mounting jig for holding a brush having a pair of side surfaces 31R, 31L perpendicular to 13a and a pair of lower surfaces 32R, 32L extending in opposite directions from the upper ends of the pair of side surfaces 31R, 31L. The tool includes a pair of shaft-like portions 61R and 61L that are arranged at an interval substantially equal to the distance between the pair of side surfaces 31R and 31L, are fixed to each other, and extend in parallel.

  According to such a configuration, the attachment jig 60 is brushed so that the pair of shaft-like portions 61R and 61L sandwich the two side surfaces 31R and 31L of the attachment piece 13 below the pair of lower surfaces 32R and 32L of the attachment piece 13. When attached to 11, the brush 11 is supported by the attachment jig 60. When the brush 11 is supported by the mounting jig 60, the brush 11 does not rotate with respect to the mounting jig 60 even if torque from the set screw 7 is applied to the brush 11. Therefore, the mounting jig 60 according to the eighth embodiment can hold and move the brush 11 with the mounting jig 60, and can prevent the brush 11 from rotating when the brush 11 is fixed and removed.

  Moreover, the attachment long hole 55 which concerns on 7th Embodiment may be applied to the lower frame 5 of the sill cleaning apparatus which concerns on other embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Door panel, 2 ... Door guide shoe, 3 ... Sill, 3a ... Groove, 4 ... Side frame, 5 ... Lower frame, 6 ... Fixing screw, 7 ... Set screw, 7a ... Shaft part, 7a ... Head, 8 ... Spring washer, 9 ... Plain washer, 10 ... Sill cleaning device, 11 ... Brush, 12 ... Brush hair, 13 ... Mounting piece, 13a ... Upper surface, 13b ... Screw hole, 14 ... Single-piece body, 14a ... Upper surface, 15 ... Short Step part, 15a ... Side face, 16 ... Long step part, 16a ... Side face, 18 ... Arm, 20 ... Torque transmission part, 21 ... Support plate, 22 ... Through hole, 22a ... Inner peripheral surface, 23 ... Screw hole, 24 ... Projection screw, 25 ... Projection, 30L ... Left slit, 30R ... Right slit, 31L ... Left side, 31R ... Right side, 32L ... Left bottom, 32R ... Right bottom, 33L ... Left top, 33R ... Right top, 50 ... Mounting round hole, 51 ... Mounting square hole, 51a ... Inner peripheral surface, 52 ... Mounting Hole 52a ... Inner peripheral surface 53 ... Insertion hole 53a ... Inner peripheral surface 54 ... Mounting large hole 54a ... Inner peripheral surface 55 ... Mounting long hole 60 ... Mounting jig 61R, 61L ... A pair of shafts , 62 ... connection part, 63 ... handle part, 70 ... dharma hole, 100 ... subassembly, D1A ... closing direction, D1B ... opening direction, D2 ... depth direction, D3 ... vertical direction, W13 ... spacing, W60 ... interval

Claims (11)

In an elevator sill cleaning device in which the door is guided along the groove by a door guide shoe fixed to the elevator door and inserted into the sill groove,
A frame that faces the groove and moves according to the opening and closing of the door;
A brush having brush bristles inserted into the groove;
A fixing member that removably fixes the brush to the lower surface of the frame independently of the door guide shoe,
An elevator sill cleaning device characterized by that.   The elevator sill cleaning apparatus according to claim 1, wherein the brush is disposed closer to the front side in the closing direction of the door than the door guide shoe. The fixing member includes a set screw having a shaft portion and a head portion,
The frame includes a mounting hole through which the shaft portion is inserted in the vertical direction, and a receiving portion that receives torque from the set screw around the mounting hole,
The brush includes a mounting piece in which the brush portion is planted and the shaft portion inserted through the mounting hole is screwed, a torque transmission portion connected to the mounting piece so as to be able to transmit the torque and hitting the receiving portion Comprising
The elevator sill cleaning device according to claim 1 or 2. The receiving portion is configured by at least a part of the inner peripheral surface of the mounting hole.
The elevator sill cleaning apparatus according to claim 3. The inner peripheral surface of the mounting hole has a flat surface,
The elevator sill cleaning apparatus according to claim 4, wherein the torque transmission portion is a flat surface facing the flat surface. The frame includes an insertion hole through which the entire bristle and the attachment piece are inserted in the vertical direction.
The mounting hole is continuous with the insertion hole,
The elevator sill cleaning device according to any one of claims 3 to 5. The receiving portion is an inner peripheral surface of the insertion hole;
The torque transmission unit includes a support plate that is coupled to the mounting piece so as to be able to transmit the torque and is disposed along the frame, and a protrusion that protrudes from the support plate into the insertion hole.
The elevator sill cleaning apparatus according to claim 6. The torque transmission unit is detachably coupled to the mounting piece.
The elevator sill cleaning apparatus according to claim 7. The protruding portion is a protruding screw that is screwed to the support plate.
The elevator sill cleaning apparatus according to claim 8. The protrusion extends from the support plate by bending.
The elevator sill cleaning apparatus according to claim 8. The brush of the elevator sill cleaning apparatus according to any one of claims 3 to 5, wherein the attachment pieces are perpendicular to and parallel to an upper surface that is an attachment surface of the attachment pieces to the frame. In a mounting jig for holding a brush having a pair of side surfaces and a pair of lower surfaces extending in opposite directions from the upper ends of the pair of side surfaces,
An attachment jig comprising a pair of shaft-like portions that are arranged at an interval substantially equal to the distance between the pair of side surfaces, are fixed to each other, and extend in parallel.

Images