JP2009001363A - Supporting device of guide shoe for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supporting device of a guide shoe for an elevator having a simple structure and capable of increasing the rigidity of a guide shoe bracket. <P>SOLUTION: In the supporting device of the guide shoe for the elevator equipped with a first guide shoe bracket 10 having a first fitting face 11 to be fitted to an elevating/lowering body side and a second fitting face 12 orthogonal to the first fitting face 11 with the guide shoe slidably in contact with a guide rail being fitted thereto, flanges 13 having the same height and continuously extending are integrated with both edges of the first fitting face 11 and the second fitting face 12, and the guide shoe bracket 10 has a substantially U-shaped section. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to an elevator guide shoe support device.

  FIG. 8 is a perspective view showing a schematic structure of an elevator, FIG. 9 is a perspective view showing a conventional elevator guide shoe support device, and FIG. 10 is a perspective view of a conventional guide shoe bracket.

  As shown in FIG. 8, an elevator generally has an elevator 50, that is, a car 51 on which a person or a luggage is placed, and a counterweight 52 having a weight corresponding to the weight. Each of the weights 52 is suspended from a main rope 53 for hoisting. The car frame 61 on which the car 51 is mounted is supported by a hoisting rope 53 wound around a turning pulley 54 (only one is shown) that is pivotally supported on both sides of the lower part, and the counterweight 52 is a winding that is pivotally supported on the upper part thereof. The traction sheave 56 of the upper machine 55 is wound around and held.

  The car 51 and the counterweight 52 travel in the hoistway along the car guide rails 58a and 58b and the counterweight guide rails 59a and 59b that guide the car 51 and the counterweight 52, respectively. The car 51 is guided and supported by the car guide rails 58a and 58b by the guide shoe 21 attached to the car frame 61 via the guide shoe bracket 22 shown in FIGS. Similarly, the counterweight 52 is guided and supported on the counterweight guide rails 59a and 59b by the guide shoes.

  Furthermore, the hoisting rope 53 is wound around and arranged as follows. One end of the hoisting rope 53 is fixed to fixing means 62 above the passage of the counterweight 52 in the upper part of the hoistway. The hoisting rope 53 descends from the fixing means 62 until it meets the turning pulley 57 of the counterweight 52. When the turning pulley 57 is wound, the hoisting rope 53 rises again and is wound around the traction sheave 56 of the hoisting machine 55. The hoisting rope 53 descends from the traction sheave 56 toward the car frame 61 on which the car 51 is mounted, and ascends to the uppermost fixing means 63 of the guide rail 58a via the turning pulley 54 that supports the car frame 61. Here, the other end of the hoisting rope 53 is fixed.

  Incidentally, the above-described guide shoe bracket 22 is one of the structural parts for raising and lowering the car 51 on which a load is loaded in the elevator 50. This is because the car frame 61 for raising and lowering the car 51 moves up and down along the car guide rails 58a and 58b installed in the hoistway, so that the guide shoe 21 movable on the car guide rails 58a and 58b is used as the car. It is a part to be attached to the frame 61, and has a first attachment surface 11 to be attached to the car frame 61 and a second attachment surface 12 to which the guide shoe 21 is attached. The first attachment surface 11 and the second attachment surface 12 are The positions are substantially perpendicular to each other. The guide shoe bracket 22 is attached to the car frame 61 via an emergency stop device 26 and a receiver 25 as shown in FIG. Here, although the car 51 side is described as an example, a guide shoe and a guide shoe bracket are similarly provided on the counterweight 52 side.

  Normally, the guide shoe 21 moves smoothly on the car guide rails 58a and 58b. However, the car guide rails 58a and 58b, the guide shoe 21, the guide shoe bracket 22 and the car frame 61 are swayed by shaking such as an earthquake. A large load may act in between. The first mounting surface 11 and the second mounting surface 12 of the guide shoe bracket 22 are configured to have a substantially right-angle positional relationship, but it is considered that a change in the substantially right-side positional relationship is caused by the above-described load. It is done. For this reason, conventionally, as a measure for ensuring the rigidity of the guide shoe bracket 22, a guide shoe bracket 22 having a reinforcing portion as shown in FIG. 10 is used. That is, there is one in which the reinforcing material 23 that contacts each of the first mounting surface 11 and the second mounting surface 12 is joined by, for example, welding 24.

Conventionally, as a means for improving the rigidity of a bracket having two mounting surfaces that are substantially perpendicular to each other, a reinforcing rib is formed on a flat metal plate, and both sides along two opposite sides are formed. The part is provided with notches in the shape of a right isosceles triangle so that the apex angles are perpendicular to the two sides (see, for example, Patent Document 1).
JP 2000-336768 A (paragraph number 0025, FIG. 1)

  However, in the above-described conventional former, the reinforcing member 23 is welded 24 between the two attachment surfaces 11 and 12 that are in a substantially right-angled positional relationship with each other so as to ensure rigidity. Therefore, there are problems that the number of parts and the number of processing steps are increased, the working efficiency is deteriorated, and the manufacturing cost is increased.

  The latter is not intended for elevator guide shoe brackets, and is intended to improve bending rigidity by means of reinforcing ribs. However, notches are provided on both sides along two opposite sides. When this structure is applied to the guide shoe bracket, the required rigidity is not obtained.

  Furthermore, as another means to ensure rigidity, it is conceivable to increase the thickness of each of the two mounting surfaces that are in a substantially right angle relationship with each other. However, there is a need for higher material costs and weight reduction of the elevator. It will be harmful to.

  The present invention has been made in view of the above points, and an object thereof is to provide an elevator guide shoe support device that can improve the rigidity of a guide shoe bracket with a simple structure. .

  In order to achieve the above object, according to a first aspect of the present invention, there is provided a first mounting surface mounted on the lifting body side, and a guide shoe that is orthogonal to the first mounting surface and slidably contacts the guide rail. In the elevator shoe support device having a guide shoe bracket having a second mounting surface, the first mounting surface and both side edges of the second mounting surface have substantially the same height dimension. The guide shoe bracket has a substantially U-shaped cross-section formed integrally with a flange that is continuously extended.

  In the invention according to claim 1 of the present invention configured as described above, the first mounting surface and the second mounting surface of the guide shoe bracket are continuously provided with substantially the same height dimension on both side edges. By integrally forming the flange to be extended, it is possible to ensure the necessary rigidity without requiring a special reinforcing material as in the prior art, and to reduce the number of processing steps.

  Further, the invention according to claim 2 of the present invention includes ribs that extend continuously from the first mounting surface and the second mounting surface and have a convex shape in the inner angle direction of each mounting surface. It is characterized by that.

  The invention according to claim 2 of the present invention configured as described above extends continuously from the first mounting surface and the second mounting surface of the guide shoe bracket, and has a convex shape in the inner angle direction of each mounting surface. By providing the rib having, it is possible to provide a guide shoe bracket that can handle a large load.

  Further, the invention according to claim 3 of the present invention is characterized in that the second mounting surface is provided with a rib having a convex shape in the inner angle direction of each mounting surface.

  In the invention according to claim 3 of the present invention configured as described above, the second mounting surface of the guide shoe bracket is provided with a rib having a convex shape in the inner angle direction of each mounting surface, so that a relatively large load is applied. It can be a compatible guide shoe bracket.

  The invention according to claim 4 of the present invention is characterized in that a plate thickness dimension of the guide shoe bracket is set to 4 mm to 5 mm, and a height dimension of the flange is set to 20 mm to 25 mm. .

  The invention according to claim 4 of the present invention configured as described above is necessary by setting the plate thickness dimension of the guide shoe bracket to 4 mm to 5 mm and setting the height dimension of the flange to 20 mm to 25 mm. The guide shoe bracket can be easily molded while ensuring a sufficient rigidity.

  According to the present invention, the flanges are integrally formed on both side edge portions of the first mounting surface and the second mounting surface of the guide shoe bracket, so that the necessary rigidity can be obtained without requiring a special reinforcing material as in the prior art. It can be ensured, and the number of processing steps can be reduced, whereby the production time, production cost, and weight of the guide shoe bracket can be reduced.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an elevator guide shoe support device according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a first embodiment of an elevator guide shoe support device according to the present invention, FIG. 2 is an enlarged view of a car frame base to which a guide shoe bracket is attached, and FIG. 3 is a guide shoe bracket molding. FIG. 4 is a plan view showing a mounting hole formed in the guide shoe bracket. The schematic structure of the elevator will be described with reference to FIG. 8, and the same components as those described above are denoted by the same reference numerals.

  In general, the guide shoe 21 is attached to a structural frame of an elevating body, for example, a car frame base 70 shown in FIG. The car frame base 70 is composed of a pair of vertical bases 75 and a plurality of horizontal bases 76 interposed between the vertical bases 75, and guide shoes are provided below the emergency stop device 26 fixed to the car frame base 70. 21 is attached. In addition, the car frame base 70 is provided with a pulley 71 and a pulley stand 72.

  The elevator shoe support device of the first embodiment, that is, the guide shoe bracket 10 for attaching the guide shoe 21 to the lower part of the emergency stop device 26 is, as shown in FIG. The first attachment surface 11 attached to the device 26 and the second attachment surface 12 orthogonal to the first attachment surface 11 to which the guide shoe 21 is attached, and the first attachment surface 11 and the second attachment surface 11. A flange 13 having the same height dimension and continuously extending is integrally formed on both side edges of the mounting surface 12, and the cross-sectional shape of the guide shoe bracket 10 is substantially U-shaped. Further, a mounting hole 31 for the safety device 26 is formed in the first mounting surface 11, and a mounting hole 32 for the guide shoe 21 is formed in the second mounting surface 12. Further, the plate thickness dimension H1 of the guide shoe bracket 10 is, for example, 4.5 mm, the height dimension H2 of the flange 13 is 20 mm, and the bending radius R1 at the position where the first mounting surface 11 and the second mounting surface 12 intersect. Is, for example, 10 mm, and the bending radius R2 at the position where the mounting surfaces 11 and 12 and the flange 13 intersect is set to 4 mm, for example.

  Here, a method of forming the guide shoe bracket 10 will be described with reference to FIG. First, as shown in FIG. 3A, a U-shaped cross section in which the flange portion 13 is formed by a press brake or press in a previous process on a die set including a punch 41, dies 42a and 42b, and side restraints 43. Then, the guide shoe bracket 10 having the flange portion 13 as an integral structure is formed by pushing the punch 41 as shown in FIG. Further, in order to omit the pre-process of the work 9, the guide shoe bracket 10 may be formed in one process by pressing the punch 41 in a state where the flange portion 13 is formed from the plate material using the side surface restraint 43. it can.

  Before forming the guide shoe bracket 10, the mounting holes 31a, 31b on the first mounting surface 11 side of the work 9 and the guide shoe mounting holes 32a, 32b of the second mounting surface 12 are in the state shown in FIG. It has become. That is, in the mounting holes 31 a and 32 a close to the bending center 35, an inclination is given to the hole dimension considering the contraction amount and the longitudinal direction 36 in consideration of the hole deformation due to the bending deformation. On the other hand, since the holes 31b and 32b far from the bending center 35 are not affected by bending deformation, there is almost no difference in size and shape between before and after molding.

  According to the first embodiment, the flange 13 is integrally formed on both side edges of the first mounting surface 11 and the second mounting surface 12 of the guide shoe bracket 10, so that a special reinforcing material can be provided as in the related art. The required rigidity can be ensured without necessity, and the number of processing steps can be reduced, whereby the manufacturing time, manufacturing cost, and weight of the guide shoe bracket 10 can be reduced. Further, as the plate thickness dimension of the guide shoe bracket 10 is increased or the height dimension of the flange 13 is increased, the rigidity is increased while the molding load is increased. Therefore, in the first embodiment, the guide shoe bracket 10 has a plate thickness dimension H1 of 4.5 mm to 5 mm and a flange 13 height dimension H2 of 20 mm to 25 mm. The shoe bracket 10 can be easily formed.

  FIG. 5 is a perspective view showing a second embodiment of an elevator guide shoe support device according to the present invention, and FIG. 6 is an explanatory view showing a procedure for forming a flange portion and a rib on the guide shoe bracket. In addition, the same code | symbol is attached | subjected to the thing equivalent to what was mentioned above.

  As shown in FIG. 5, the guide shoe bracket 10a of the second embodiment extends continuously from the first mounting surface 11 and the second mounting surface 12, and has a convex shape in the inner angle direction of each mounting surface. The rib 14 is provided, and the rib 14 is set to have a width of 30 mm and a height of 20 mm, for example. Further, the guide shoe bracket 10a uses a workpiece 8 as shown in FIG. 6 (a), and after forming the bent portion 17 as shown in (b), the flange 13 is pushed in as shown in (c) by a punch or the like. The rib 14 is pressed and molded while being molded in a rugged manner.

  According to 2nd Embodiment, it can be set as the guide shoe bracket 10a which can respond to a big load by providing the rib 14. FIG. That is, as described above, by setting the rib 14 to a width of 30 mm and a height of 20 mm, it is possible to obtain about twice as much rigidity as that of a conventional guide shoe bracket.

  FIG. 7 is a perspective view showing a third embodiment of an elevator guide shoe support device according to the present invention. In addition, the same code | symbol is attached | subjected to the thing equivalent to what was mentioned above.

  As shown in FIG. 7, the guide shoe bracket 10 b of the third embodiment includes ribs 15 having a convex shape in the inner angle direction of each mounting surface on the first mounting surface 11. For example, the width is set to 30 mm and the height is set to 20 mm.

  According to the third embodiment, by providing the ribs 15, the guide shoe bracket 10b that can handle a relatively large load can be obtained. That is, as described above, by setting the rib 15 to a width of 30 mm and a height of 20 mm, it is possible to obtain a rigidity about 1.5 times that of a conventional guide shoe bracket.

1 is a perspective view showing a first embodiment of a support device for an elevator guide shoe according to the present invention. It is an enlarged view of the car frame base part to which a guide shoe bracket is attached. It is principal part sectional drawing explaining the shaping | molding method of a guide shoe bracket. It is a top view which shows the attachment hole formed in a guide shoe bracket. It is a perspective view which shows 2nd Embodiment of the support apparatus of the guide shoe for elevators which concerns on this invention. It is explanatory drawing which shows the procedure which shape | molds a flange part and a rib in a guide shoe bracket. It is a perspective view which shows 3rd Embodiment of the support apparatus of the guide shoe for elevators which concerns on this invention. It is a perspective view which shows the schematic structure of an elevator. It is a perspective view which shows the support apparatus of the conventional guide shoe for elevators. It is a perspective view of the conventional guide shoe bracket.

Explanation of symbols

10, 10a, 10b Guide shoe bracket 11 First mounting surface 12 Second mounting surface 13 Flange 14, 15 Rib 21 Guide shoe 26 Emergency stop device 31, 32 Mounting hole 50 Elevator 51 Car 52 Counterweight 53 Main rope 58a, 58b Car guide rail 59a, 59b Counterweight guide rail H1 Thickness H2 Flange height

Claims (4)

Elevator guide shoe provided with a guide shoe bracket having a first mounting surface mounted on the lifting body side and a second mounting surface mounted with a guide shoe that is orthogonal to the first mounting surface and is slidably contacted with the guide rail In the support device of
A flange extending continuously with substantially the same height is integrally formed on both side edges of the first mounting surface and the second mounting surface, and the cross-sectional shape of the guide shoe bracket is formed. An elevator guide shoe support device characterized by having a substantially U-shape.   2. The elevator guide according to claim 1, further comprising a rib extending continuously from the first mounting surface and the second mounting surface and having a convex shape in an inner angle direction of each mounting surface. Shoe support device.   2. The elevator guide shoe support device according to claim 1, wherein the second mounting surface includes a rib having a convex shape in an inner angle direction of each mounting surface. 3.   2. The support for an elevator guide shoe according to claim 1, wherein a thickness of the guide shoe bracket is set to 4 mm to 5 mm, and a height of the flange is set to 20 mm to 25 mm. apparatus.

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