JP5455549B2 - Elevator guide device - Google Patents

Description

  The present invention relates to an elevator guide device.

  A conventional elevator guide device has a U-shaped support member attached to a car or a counterweight, and is formed into a U-shaped cross-section, is attached to the support member and engages with an engagement portion of a guide rail, A sliding member that slides with respect to the guide rail and guides the raising and lowering of the car or the counterweight (for example, see Patent Document 1).

JP 2001-270669 A

Although not described in detail in the conventional elevator guide device, the sliding member is mounted loosely in the storage groove of the support member, and is provided by holding members attached to both ends of the support member in the groove direction. Outward in the groove direction and jumping out of the groove opening are prevented.
Therefore, when the car or the counterweight starts to move up or down, or when the guide member passes through the joint of the guide rail, the sliding member collides with the inner wall surface of the groove of the holding member or the support member, and generates abnormal noise. There was a problem that comfort decreased.

  The present invention was made to solve such a problem, and the sliding member is elastically held by the support member to suppress the movement of the sliding member, and when the raising or lowering of the cage or the counterweight is started, or An object of the present invention is to provide an elevator guide device that can suppress the generation of abnormal noise when passing through the joint of the guide rail and can improve the riding comfort.

An elevator guide device according to the present invention is mounted on a car or a counterweight, engages with a guide rail to guide the raising or lowering of the car or the counterweight, is mounted on the car or the counterweight, and has a rectangular section A support member having a storage groove and a columnar body having a U-shaped cross section comprising a pair of side portions and a bottom portion, elastically supported by the storage groove, held by the support member, and engaged with the guide rail. A resin-made sliding member that is fitted to the joint portion in an external fitting state and slides with respect to the engaging portion, and the pair of side portions of the sliding member and the bottom portion are engaged with each other. Urging means for elastically deforming the pair of side sides in a mouth-opening manner, and the pair of the pair of side sides is restored by a restoring force generated in the urging means when the sliding member is housed in the housing groove. pressing of the side portion on the inner peripheral wall surface of the upper Symbol receiving groove of Te, sliding member is elastically supported on the housing groove.

  According to this invention, the sliding member is elastically supported by the storage groove and is held by the support member. Therefore, when the raising or lowering of the car or the counterweight starts, the frictional force generated between the sliding member and the inner peripheral wall surface of the storage groove works to cause the sliding member to follow the raising or lowering of the car or the counterweight. As a result, the sliding member follows up and down of the car or the counterweight, and the collision between the sliding member and the supporting member is avoided. Further, even if the sliding member cannot follow the raising or lowering of the car or the counterweight, the collision force between the sliding member and the support member is caused by the frictional force generated between the sliding member and the inner peripheral wall surface of the storage groove. It is significantly reduced and the generation of abnormal noise is suppressed. Furthermore, when the guide device passes through the joint of the guide rail, the sliding member does not swing in the groove width direction of the storage groove even if there is a step in the joint of the guide rail. Therefore, no abnormal noise is generated even when the guide device passes through the joint of the guide rail.

It is sectional drawing which shows typically the structure of the elevator to which the elevator guide apparatus which concerns on Embodiment 1 of this invention is applied. 1 is a front view showing an elevator car to which an elevator guide device according to Embodiment 1 of the present invention is applied. It is a principal part side view which shows the periphery of the elevator guide apparatus to which the elevator guide apparatus which concerns on Embodiment 1 of this invention is applied. It is a front view which shows the elevator guide apparatus which concerns on Embodiment 1 of this invention. It is a VV arrow sectional view of Drawing 4. It is a top view explaining the structure of the sliding member which comprises the guide apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a top view which shows the state before mounting | wearing to the support part of the sliding member which comprises the guide apparatus of the elevator which concerns on Embodiment 3 of this invention. It is a top view which shows the sliding member which comprises the guide apparatus of the elevator which concerns on Embodiment 4 of this invention.

Embodiment 1 FIG.
1 is a cross-sectional view schematically showing the configuration of an elevator to which an elevator guide device according to Embodiment 1 of the present invention is applied, and FIG. 2 is an elevator to which the elevator guide device according to Embodiment 1 of the present invention is applied. Fig. 3 is a front view showing the car, Fig. 3 is a side view of the main part showing the periphery of the elevator guide device to which the elevator guide device according to the first embodiment of the present invention is applied, and Fig. 4 is related to the first embodiment of the present invention. FIG. 5 is a cross-sectional view taken along line VV in FIG. 4. FIG. 6 is a top view for explaining the configuration of the sliding member constituting the elevator guide device according to Embodiment 1 of the present invention. FIG. 6 (a) shows a state before the support portion is mounted. (B) shows a state in which the support portion is mounted.

1 and 2, a driving sheave 3 and a deflecting wheel 4 are installed in a machine room 2 formed in the upper part of the hoistway 1, and a car 7 and a counterweight 6 are connected to the driving sheave 3 and the deflecting wheel 4. The main rope 5 is hung from the hoistway 1 and hung on the hoistway 1. The car 7 includes a car room 8 and a car frame 9 that supports the car room 8. The car frame 9 includes a lower frame 10 that supports the car room 8, an upper frame 11 to which the end of the main rope 5 is fixed, and a pair of vertical frames that connect the ends of the lower frame 10 and the upper frame 11 to each other. 12. And the guide apparatus 20 is attached to the support arm 13 extended from each of the upper-lower-end side of each vertical frame 12. As shown in FIG.
Although not shown, the guide device 20 is similarly attached to the attachment frame of the counterweight 6.

  In the elevator configured as described above, the drive sheave 3 is driven and controlled by the elevator control panel 15, and the car 7 and the counterweight 6 are guided by the car guide rail 16 and the counterweight guide rail (not shown). The hoistway 1 is moved up and down.

Next, the configuration of the guide device 20 will be described with reference to FIGS. 3 to 6.
The guide device 20 is made of, for example, a resin material such as polyethylene resin, and is formed in a U-shape including a bottom portion 22 and a pair of side portions 23 erected in parallel relative to both sides of the bottom portion 22. And is a columnar resin molded body having a predetermined length in the groove direction, and is engaged with the engaging portion 16a of the car guide rail 16 in an externally fitted state, and slides relative to the engaging portion 16a. 7 and a torsion coil spring as an urging means that is attached to the sliding member 21 and biases the side portions 23 of the sliding member 21 so as to be elastically deformed in a mouth-open shape. 26 and a support member 29 that is fixed to the support arm 13 and holds the sliding member 21.

  The torsion coil spring 26 includes a coil portion 27 around which a wire rod made of spring steel is wound, and a pair of operating portions 28 made of a wire rod extending from both ends of the coil portion 27. The torsion coil spring 26 is housed in a housing part 24 in which a coil part 27 is recessed over the entire area in the groove direction on the outer periphery of the intersection of the bottom part 22 and the side part 23 of the sliding member 21, and a pair of operating parts. 28 is inserted into the bottom portion 22 and the side portion 23 and is molded integrally with the sliding member 21. Although not shown in the drawing, the torsion coil springs 26 are mounted on the sliding member 21 in pairs at three locations on both sides in the groove direction of the sliding member 21 and the center.

  When the sliding member 21 to which the torsion coil spring 26 is attached is not attached to the support member 29, the biasing force of the torsion coil spring 26 is applied to the bottom portion 22 and the side edge as shown in FIG. It acts on the bottom part 22 and the side part 23 so as to increase the angle formed with the part 23, and both side parts 23 are elastically deformed in the form of a mouth. That is, the groove opening width L2 of the sliding member 21 is wider than the groove bottom width L1.

  The support member 29 is made of, for example, a steel material, and includes a bottom 31 and a pair of side portions 32 erected in parallel relative to both sides of the bottom 31, and has a U-shaped cross section forming a rectangular storage groove. A support portion 30 having a predetermined length in the groove direction, a steel mounting arm 34 fixed to one end surface of the support portion 30 in the groove direction by welding or the like, and the support portion 30. A pair of flange portions 33 that are integrally formed and extend at right angles from the other end in the groove direction of the outer peripheral surfaces of the pair of side portions 32, and the pair of flange portions 33 are tightened using attachment screws 35 and nuts 36. A steel pressing portion 37 that is fixedly attached and detachably attached to the other end surface of the support portion 30, and a reinforcing member 38 that is fixed to the outer peripheral surface of the bottom portion 31 and the upper surface of the mounting arm 34 by welding or the like. I have.

  The mounting arm 34 is formed with an inner notch 39 through which the engaging portion 16a of the car guide rail 16 is inserted and which prevents the sliding portion 21 from coming out from one end in the groove direction. Yes. In addition, the holding portion 37 is inserted into the engaging portion 16a of the car guide rail 16 and has an inner shape notch 40 for preventing the sliding member 21 from coming off from the other end in the groove direction of the support portion 30. In addition, a stopper 41 that prevents the sliding member 21 from coming out of the groove opening of the support portion 30 is formed.

In order to assemble the guide device 20 configured in this way, first, the bottom 22 side of the sliding member 21 is placed in the storage groove of the support portion 30, and the entire sliding member 21 is placed in the storage groove of the support portion 30. Push in. Next, the holding portion 37 is placed on the other end of the support portion 30 in the groove direction, and is fastened and fixed to the pair of flange portions 33 using the mounting screw 35 and the nut 36, and the guide device 20 is assembled.
The guide device 20 assembled in this way is attached to the car 7 with the attachment arm 34 fastened and fixed to the support arm 13 extending from the vertical frame 12 using the attachment screw 42 and the nut 43.

  In the guide device 20, the sliding member 21 is elastically deformed at both side portions 23, and the outer peripheral wall surface of the bottom portion 22 and the outer peripheral wall surfaces of the both side portions 23 are the inner peripheral wall surface and both side portions of the bottom portion 31 of the support portion 30. 32 is attached to the support portion 30 in contact with the inner peripheral wall surface. As shown in FIG. 6B, the groove opening width L2 of the sliding member 21 is substantially equal to the groove bottom width L1. Then, due to the elastic deformation of the side portions 23, the restoring force is stored in the coil portion 27 of the torsion coil spring 26. This restoring force acts on the side part 23 via the operating part 28, and the side part 23 is pressed against the side part 32 of the support part 30. Thereby, the sliding member 21 is elastically supported by the support portion 30. Therefore, the movement of the sliding member 21 is blocked by the frictional force generated between the sliding member 21 and the support portion 30. Further, the sliding member 21 is prevented from coming out of the storage groove by the edge of the notch 39 of the mounting arm 34, the edge of the notch 40 of the pressing portion 37, and the stopper 41.

  Further, since the coil portion 27 of the torsion coil spring 26 is housed in the housing portion 24 that is recessed in the outer periphery of the intersection of the bottom portion 22 and the side portion 23 of the sliding member 21, the sliding member 21 is supported. When attached to the part 30, contact between the coil part 27 and the support part 30 is avoided.

  Here, a problem when the sliding member is housed in the support portion 30 in a loosely fitted state will be described. First, when the car 7 starts to move up and down, a frictional force is generated between the engaging portion 16a of the car guide rail 16 and the sliding member, and the sliding member cannot follow the raising and lowering of the car 7, and the mounting arm 34 or the pressing portion 37, an abnormal noise is generated. Further, when the guide device passes through the seam of the car guide rail 16, the sliding member swings in the groove width direction of the support portion 30 due to the step of the seam of the car guide rail 16. As a result, the sliding member hits the side portion 32 of the support portion 30 and abnormal noise is generated.

  According to the first embodiment, the side portion 23 of the sliding member 21 is pressed against the side portion 32 of the supporting portion 30 by the restoring force of the torsion coil spring 26, and the sliding member 21 is elastically supported by the supporting portion 30. Since it is supported, the generation of abnormal noise is suppressed as described below, and the riding comfort of the car 7 is improved.

First, the frictional force generated between the sliding member 21 and the support portion 30 works to cause the sliding member 21 to follow up and down of the car 7 when the car 7 starts to move up and down. As a result, the sliding member 21 follows up and down of the car 7, and the collision between the sliding member 21 and the mounting arm 34 or the pressing portion 37 is avoided. Even if the sliding member 21 cannot follow the raising and lowering of the car 7, a collision force between the sliding member 21 and the mounting arm 34 or the pressing portion 37 is generated between the sliding member 21 and the support portion 30. The frictional force significantly reduces the occurrence of abnormal noise.
Next, when the guide device 20 passes through the joint of the car guide rail 16, the sliding member 21 may swing in the groove width direction of the support portion 30 even if there is a step in the joint of the car guide rail 16. Absent. Therefore, no abnormal noise is generated when the guide device 20 passes through the joint of the car guide rail 16.

  In the first embodiment, the torsion coil spring is molded integrally with the sliding member, but after the sliding member is molded, the operation portion insertion hole is formed in the side portion and the bottom portion, The torsion coil spring may be attached to the sliding member by inserting the operating portion into the operating portion insertion hole in the side portion and the bottom portion of the sliding member.

In the first embodiment, the torsion coil springs are mounted in pairs at three locations on both ends and the center in the groove direction of the sliding member. However, the number of torsion coil springs is limited to this. For example, a pair may be attached to two quarters of the length of the sliding member in the groove direction.
In the first embodiment, the torsion coil spring is used as the urging means. However, the urging means is not limited to the torsion coil spring, and for example, a plate spring may be used.

Embodiment 2. FIG.
The second embodiment is configured in the same manner as in the first embodiment except that the inner peripheral wall surface of the storage groove of the support portion is a rough surface.

  In the second embodiment, since the inner peripheral wall surface of the storage groove of the support portion is formed into a rough surface, the frictional force generated between the sliding member and the support portion is increased. Therefore, it is possible to reliably suppress the generation of abnormal noise at the start of raising and lowering the car.

  In the second embodiment, the inner peripheral wall surface of the storage groove of the support portion is a rough surface. However, the outer peripheral wall surface of the sliding member may be a rough surface, or the inner peripheral wall surface of the storage groove of the support portion and the sliding surface. Both of the outer peripheral wall surfaces of the moving member may be roughened.

Embodiment 3 FIG.
FIG. 7 is a top view showing a state before mounting on the support portion of the sliding member constituting the elevator guide device according to Embodiment 3 of the present invention.

In FIG. 7, in the sliding member 21 </ b> A, a recess 25 is provided over the entire area in the groove direction on the inner periphery of the intersection of the bottom 22 and the side parts 23.
The third embodiment is configured in the same manner as the first embodiment except that a sliding member 21A is used instead of the sliding member 21.

Therefore, the third embodiment also has the same effect as the first embodiment.
According to the third embodiment, the recess 25 is provided over the entire area in the groove direction on the inner periphery of the intersection of the bottom portion 22 and the side portions 23. Therefore, the side portions 23 are easily elastically deformed, so that the mounting property of the sliding member 21A to the support portion 30 is improved, and the torsion coil spring 30 is reduced in size. Further, the contact between the corner portion of the engaging portion 16a of the car guide rail 16 and the sliding member 21A is avoided by the concave portion 25, and the sliding resistance and the sliding noise can be reduced.

Embodiment 4 FIG.
FIG. 8 is a top view showing a sliding member constituting an elevator guide apparatus according to Embodiment 4 of the present invention. FIG. 8 (a) shows a state before the support portion is mounted, and FIG. ) Shows a state where the support portion is mounted.

In FIG. 8, the sliding member 45 is made of, for example, a resin material such as polyethylene resin, and includes a bottom portion 46 and a pair of side portions 47 erected in parallel from both sides of the bottom portion 46. It is a columnar resin molding formed in a U-shape and having a predetermined length in the groove direction. And the recessed part 48 is recessedly provided over the whole area of a groove | channel direction in the cross | intersection inner periphery of the bottom part 46 and the both-sides part 47.
The fourth embodiment is configured in the same manner as the first embodiment except that the sliding member 45 is used instead of the sliding member 21.

  When the sliding member 45 is not attached to the support portion 30, as shown in FIG. 8 (a), the groove opening has an opening shape, and the groove opening width L2 is the groove bottom width L1. It is getting wider. Then, the bottom 46 side of the sliding member 45 is put into the storage groove of the support portion 30, and the entire sliding member 45 is pushed into the storage groove of the support portion 30. As a result, the sliding member 45 is mounted in the storage groove of the support portion 30 as shown in FIG. At this time, both side portions 47 of the sliding member 45 are elastically deformed so as to reduce the groove opening width, and the both side portions 47 are pressed against the inner peripheral wall surfaces of the both side portions 32 of the support portion 30 by their own restoring force. The sliding member 45 is elastically supported by the support portion 30. Therefore, the outer peripheral wall surfaces of the side portions 47 are in contact with the inner peripheral wall surfaces of the side portions 32 of the support portion 30, and the groove opening width L2 of the sliding member 45 is substantially equal to the groove bottom portion width L1.

Therefore, the fourth embodiment also has the same effect as the first embodiment.
According to the fourth embodiment, the recess 48 is provided over the entire area in the groove direction on the inner periphery of the intersecting portion of the bottom 46 and the side portions 47. Therefore, the side portions 47 are easily bent, and the mounting property of the sliding member 45 to the support portion 30 is improved. Further, contact between the corners of the engaging portions 16a of the car guide rails 16 and the sliding members 45 is avoided by the concave portions 48, and sliding resistance and sliding noise can be reduced.

In each of the above embodiments, the guide device is attached to the car and the counterweight. However, the guide device may be attached to one of the car and the counterweight.
Further, in each of the above embodiments, the support portion is made of a columnar body having a U-shaped cross section, but the support portion only needs to have a rectangular cross-section storage groove, and its outer shape is There is no particular limitation.

  6 counterweights, 7 cages, 16 cage guide rails, 20 guide devices, 21 and 21A sliding members, 22 bottom portions, 23 side portions, 25 recesses, 26 torsion coil springs, 29 support members, 30 support portions, 45 slides Moving member, 46 bottom part, 47 side part, 48 recessed part.

Claims (3)

In an elevator guide device that is mounted on a car or a counterweight and engages a guide rail to guide the raising or lowering of the car or the counterweight.
A support member mounted on the cage or counterweight and having a storage groove having a rectangular cross section;
A columnar body having a U-shaped cross-section consisting of a pair of side portions and a bottom portion is produced, elastically supported by the storage groove, held by the support member, and fitted to the engaging portion of the guide rail in an externally fitted state. A resin sliding member that slides relative to the engaging portion;
Urging means that engages with each of the pair of side sides of the sliding member and the bottom, and elastically deforms the pair of side sides in a mouth-open shape,
By a restoring force which the sliding member is generated in said biasing means when held in the holding groove, the pair of side portions is pressed against the inner peripheral wall surface of the upper Symbol receiving groove, the sliding member An elevator guide device characterized by being elastically supported by the storage groove.   2. The elevator guide apparatus according to claim 1, wherein the biasing means is a torsion coil spring.   The elevator guide device according to claim 1, wherein a recess is provided in an inner periphery of an intersection between each of the pair of side portions and the bottom portion.

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