JP4208479B2 - Elevator guide device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator guide device for raising and lowering a car along a guide rail.
[0002]
[Prior art]
Each elevator car has a guide device attached to each square of the car, and these guide devices are configured to move up and down along the hoistway while being guided by guide rails standing on the hoistway.
[0003]
By the way, the guide device is attached to the upper beam and the lower beam constituting the car frame of the car. However, since the guide device protrudes above the upper beam or below the lower beam, only the protruding portion is extra. However, there is a problem that the overhead size and the pit depth increase. Here, the overhead dimension refers to the distance from the top floor to the hoistway ceiling, and the pit depth refers to the distance from the bottom floor to the floor of the hoistway bottom.
[0004]
Thus, several guide devices have been proposed in order to improve the above problems.
[0005]
(1) One of them is, as shown in FIG. 8, a car frame column 53 having a U-shaped cross section having openings on the outside connected to both ends of a car upper beam 51 and a car lower beam 52 of a car. The opening surface of the car frame column 53 and the guide rail 54 erected on the hoistway are set in a positional relationship facing each other. A guide device 55 that fits and slides a guide rail 54 is fixed by bolting with a bolt / nut 56 slightly below the upper part of each car frame column 53 and slightly above the lower part.
[0006]
The guide device 55 has a U-shaped guide base 55a having an opening on the outside, and a sliding member 55b having a U-shaped cross-section that is held inside the U-shaped guide base 55a and is fitted on and slides on the guide rail 54. It is made up of.
[0007]
Therefore, since the guide device 55 does not protrude from the upper surface of the car upper beam 51 and the lower surface of the car lower beam 52, there is no problem that the overhead size and the pit depth due to the protrusion of the guide device increase as in the prior art.
[0008]
(2) In the other one, a car frame column having a U-shaped cross section having openings on the outside connected to both ends of the car upper beam and the car lower beam is attached, and the car upper beam, the car lower beam, and the car An L-shaped pad is applied to each corner of the frame column, and one plate piece of the L-shaped pad extending to the upper surface side of the car upper beam and the lower surface side of the car lower beam is bolted to the car upper beam. 8 and a guide device similar to that shown in FIG. 8 is fixed to one side of the other plate extending in the direction of the side of the car including the upper surface of the car upper beam and the lower surface of the car lower beam. The sliding member of this guide device is configured to externally slide on the guide rail.
[0009]
This guide device is partially protruded from the upper surface side of the car upper beam and the lower surface side of the car lower beam. Since the protruding height is substantially the same as the height of the bolt, the car upper beam and the car. The amount of protrusion from the lower beam is zero, and the guide device can be easily attached and replaced.
[0010]
(3) Furthermore, in another conventional example, an L-shaped pad is applied to the corners of the car upper beam, the car lower beam, and the car frame column, and the upper surface of the car upper beam of the L-shaped pad. Side of the car including the upper side of the car upper beam and the lower side of the car lower beam. A guide device similar to that in FIG. 8 is fixed to the other plate piece extending in the direction of the side. A particularly different point is a configuration in which an elastic body is interposed between the cage frame pillar having a U-shaped cross section shown in FIG. 8 and both side surfaces of the U-shaped guide base of the guide device. That is, the guide device is supported via the elastic body attached to the cage frame pillar having a U-shaped cross section.
[0011]
Also in this guide device, it is partially projected on the upper surface side of the car upper beam and the lower surface side of the car lower beam, but since this projecting height is almost the same as the height of the bolt, Since the amount of protrusion from the car lower beam is zero and is supported on both sides of the guide base via the elastic body, transmission of vibration to the car frame can be suppressed.
[0012]
[Problems to be solved by the invention]
By the way, since the guide device 55 described in the above (1) and (2) is fixed to the car frame column 53, the car upper beam, and the car lower beam constituting the car frame by bolts, the traveling speed is increased. Accompanying increase in the irregularity of the guide rail 54, for example, lateral vibration caused by the deflection of the guide rail 54, the joint of the rail 54, etc. is directly transmitted to the car. In particular, the lateral vibration is significant in the direction connecting the two guide rails 54 located on the left and right of the car, and the riding comfort of the car is deteriorated by the transmission of this lateral vibration.
[0013]
Further, in the guide device 55, since there is no mechanism for absorbing the relative displacement between the car and the guide rail 54, the lateral vibration of the car due to the irregularity of the guide rail 54 increases as the traveling speed increases. Then, after the guide device 55 is once separated from the guide rail 54 and collides with the guide rail 54, vibration and noise are generated, and the passenger is uncomfortable.
[0014]
Further, when the load in the car becomes an unbalanced load due to passengers or luggage, or when the car balance changes due to raising or lowering, the car tilts to one of the sides, so that the guide device 55 is moved to the guide rail 54. The guide device 55 collides with the guide rail 54 in the same manner, and similarly there is a problem that vibration and noise are generated.
[0015]
In the guide device described in the above (3), since the sliding member constituting the guide device is supported via the elastic body, high-frequency vibration due to the sliding member rubbing against the guide rail 54 is suppressed. However, on the other hand, there is a limit in absorbing the low-frequency vibration with a large amplitude caused by the displacement of the guide rail 54, the joint of the guide rail 54, and the like by the elastic body. As a result, when the low-frequency vibration exceeds the limit, as described above, the guide device moves away from the guide rail and collides with the guide rail, causing vibration and noise, and the riding comfort of the car is significantly reduced.
[0016]
Furthermore, when the load in the car becomes an unbalanced load due to passengers or luggage, or when the car balance changes due to raising or lowering, the car tilts to one side, and the guide device 55 moves away from the guide rail 54. Similarly, the guide device 55 collides with the guide rail 54 and easily generates vibration and noise.
[0017]
The present invention has been made in view of the above circumstances, and an object thereof is to provide an elevator guide device that enhances the ride comfort of passengers in a car.
[0018]
[Means for Solving the Problems]
(1) In order to solve the above problems, an elevator guide device according to the present invention for guiding a car by contacting and sliding on a guide rail standing in a hoistway slides on the guide rail. A sliding member holding body that holds the moving member and protrudes the support piece in the left-right direction from both ends ;
A tubular body that is attached to the car frame or side of the cab of the car, is attached to each support one end portion of the slide member holder together are inserted into the space portion of the tubular body, A fixed shaft provided at substantially the same height as the contact position of the sliding member and the guide rail, and an elastic body provided between a rear end portion of the fixed shaft and a space portion of the cylindrical body, A holding body support mechanism comprising an adjustment member screwed into the space of the cylindrical body for adjusting the elastic force of the elastic body, and abutting the sliding member against the guide rail with a required pressing force It is the structure to make .
[0019]
The present invention is configured as described above, and by attaching a guide device to the car frame of the car or the car, even if lateral vibration caused by the irregularity of the guide rail during running of the car occurs, Since it absorbs with the elastic body built in the holding body support mechanism, the lateral vibration transmitted to the car is reduced, and the ride comfort of the passenger is enhanced. In addition, since the elastic body always presses the sliding member against the guide rail via the sliding member holding body, the guide device does not move away from the guide rail, and the car can always be operated in a stable state.
[0020]
(2) An elevator guide apparatus according to the present invention includes a sliding member holding frame that holds a sliding member that slides on a guide rail, and a sliding portion elastic body interposed between at least the left and right side portions of the sliding member holding frame. A sliding member holding body that holds the sliding member holding frame and protrudes a support piece in the left-right direction from both ends, and a cylindrical shape that is attached to the car frame of the car or the side of the car And the support member end of each of the sliding member holding bodies and inserted into the space of the cylindrical body, and at substantially the same height as the contact position of the sliding member and the guide rail. A fixed shaft provided; an elastic body provided between a rear end portion of the fixed shaft and the space portion of the cylindrical body; and a space portion of the cylindrical body that adjusts an elastic force of the elastic body. A holding body support mechanism comprising an adjustment member to be screwed, In this configuration, the sliding member is brought into contact with the guide rail with a required pressing force.
[0021]
The present invention has the same configuration as the above (1), and the high frequency vibration accompanying the sliding of the sliding member is absorbed by the sliding portion elastic body. It is possible to further reduce the lateral vibration generated in.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0023]
(First embodiment)
FIG. 1 to FIG. 3 are configuration diagrams illustrating an embodiment of an elevator guide apparatus according to the present invention. 1 is a side view in which a guide device attached to a car frame of a car is externally fitted to be slidable on a guide rail, FIG. 2 is a top view of the guide device shown in FIG. 1, and FIG. It is a side view of the guide apparatus shown in FIG.
[0024]
In these figures, reference numeral 1 denotes a car on which passengers and luggage are placed. The car 1 is installed in a car frame 3 via an elastic body 2. For example, at least one elastic body 2 is provided at an appropriate height position on both side surfaces of the car 1, for example, a position slightly higher than the middle abdomen, and a position relatively close to the edge on the lower side of the car 1. Are provided at least one by one. Further, the car frame 3 has a U-shaped cross section having openings on the outside as shown in FIG. 2 that support both ends of the car lower beam 3a, the car upper beam 3b, and the car lower beam 3a and the car upper beam 3b. The frame 2 is composed of standing frames 3c and 3c, and the elastic body 2 is interposed between the car frame 3 and the car 1 as described above. A driven sheave 4 is disposed on the lower side of the car frame 3, and a set of ropes 5 are suspended on the driven sheave 4.
[0025]
Guide devices 10 are provided at positions below the upper beam 3b height above the compatible frame 3c constituting the car frame 3 and above the lower beam 3a height below the compatible frame 3c. That is, at least two guide devices 10 are provided in each of the compatible frames 3c. In FIG. 1, reference numeral 6 denotes a guide rail standing on the hoistway.
[0026]
The guide device 10 is orthogonal to both ends of a sliding member 11 formed in, for example, a U-shaped cross-section that can be fitted and slid with respect to the guide rail 6, and a concave-shaped body 12 a that holds the sliding member 11. In this way, the sliding member holding body 12 with the support pieces 12b projecting in the left-right direction, and both sides of each of the standing frames 3c that support the both supporting pieces 12b of the sliding member holding body 12 while adjusting the required elastic force. It is comprised by the holding body support mechanism 14 bolted to the surface side with the volt | bolt and the nut 13, respectively. 12c is a reinforcing member.
[0027]
As shown in FIG. 3, each holding body support mechanism 14 includes a rectangular plate 14a whose upper and lower portions are fastened and fixed to the upright frame 3c by bolts and nuts 13 and two bolts 13 on the plate 14a. Both the cylindrical body 14b swelled in a direction orthogonal to the straight line connecting the two bolts 13 therebetween and having a space portion with a required diameter formed therein, and the sliding member holding body 12 The support piece 12b is fixed to the back side by screws, bolts, or directly attached, inserted into the space of the cylindrical body 14b, and an elastic body 14c such as a coil spring is attached to a narrow diameter portion having a step on the rear end side. The fixed shaft 14d thus formed and an adjusting member 14f such as a nut that is screwed into a screw groove 14e formed in the space on the rear end side of the cylindrical body 14b and adjusts the pressing force of the elastic body 14c. It is configured.
[0028]
Therefore, each holding body support mechanism 14 has a function of pushing the sliding member holding body 12 in a direction in which the fixed shaft 14 d is inserted into the space formed in the cylindrical body 14 b and pressed against the guide rail 6. Further, the sliding member holding body 12 supported by the holding body support mechanism 14 is configured to be supported by a contact portion between the fixed shaft 14d and the cylindrical body 14b.
[0029]
Therefore, according to the configuration as described above, after the fixed shaft 14d attached to the back side of the both support pieces 12b of the sliding member holding body 12 is inserted into the space of the cylindrical body 14b, the cylindrical body 14b is then inserted. The elastic body 14c is housed from the rear side of the space portion, and the adjustment member 14f is subsequently screwed into the screw groove 14e. Thereby, the sliding member holding body 12 holding the sliding member 11 is supported by each holding body support mechanism 14.
[0030]
In the above state, the pressing force of the sliding member 11 against the guide rail 6 is adjusted by tightening the adjusting member 14f with a required tightening force. Further, even if a large displacement vibration occurs due to the relative displacement between the car 1 and the guide rail 6, the vibration is absorbed by the expansion and contraction action of the elastic body 14 c, so that the guide device 10 is not separated from the guide rail 6. . As a result, the car 1 is stably guided to the guide rail 6. Further, even if a lateral vibration caused by an irregularity of the guide rail 6 due to an increase in the traveling speed occurs, the elastic body 14c in the cylindrical body 14b absorbs the vibration, so that the lateral vibration to the car 1 can be easily isolated. it can.
[0031]
In addition, since the holding body support mechanism 14 including the fixed shaft 14d does not protrude toward the car 1 side from the standing frame 3c, it does not interfere with the car 1. Furthermore, since the adjustment member 14f exists outside the upright frame 3c, the required adjustment of the pressing force can be easily performed.
[0032]
Further, since the fixed shaft 14d of the holding body support mechanism 14 has substantially the same height as the contact position between the sliding member 11 and the guide rail 6, the elastic body 14c absorbs the impact force when passing through the step. It is possible to prevent this impact force from being transmitted to the car 1 and increasing vibration.
[0033]
(Second Embodiment)
FIG. 4 is a top view showing another embodiment of the guide device 10 according to the present invention.
[0034]
In this guide device 10, since the sliding member holding body 12 and the holding body support mechanism 14 are the same as those in the first embodiment, the same reference numerals are assigned to the description of FIGS. 1 to 3. Different parts will be described.
[0035]
That is, in this embodiment, the sliding member holding body 12 and the sliding member 11 are separated, and the sliding member 11 is held by the sliding member holding frame 15 having a U-shaped cross section. 11a is configured such that a sliding portion elastic body 16 is interposed between both side surfaces 11a and the sliding member holding body 12.
[0036]
Therefore, according to this embodiment, the guide device 10 has the same effects as the first embodiment, and the horizontal vibration is absorbed by the elastic body 14c, and the high frequency accompanying the sliding of the sliding member 11 is obtained. Since the vibration can be absorbed by the sliding portion elastic body 16, the lateral vibration generated in the car 1 can be further suppressed.
[0037]
(Third embodiment)
5 and 6 are views for explaining still another embodiment of the guide device 10 according to the present invention. FIG. 5 shows that the guide device attached to the car is slidable on the guide rail. FIG. 6 is a top view of the guide device shown in FIG. 5.
[0038]
Since this embodiment has almost the same configuration as FIG. 1 and FIG. 2, the same reference numerals are given to the same parts as those figures, and the description will be given to FIG. 1 and FIG. .
[0039]
That is, in FIGS. 1 and 2, the guide device 10 is attached to the car frame 3, but in this embodiment, not the car frame 3 but the both sides of the car 1 via the U-shaped cross-sectional frames 17. In this configuration, the guide device 10 is directly attached.
[0040]
According to such a configuration, similarly to the first embodiment, the fixed shaft 14d fixed to the back surface side of the both support pieces 12b of the sliding member holding body 12 is inserted into the space portion of the cylindrical body 14b. Thereafter, the elastic body 14c is inserted from the space portion rear end side of the cylindrical body 14b, and then the adjustment member 14f is screwed into the screw groove 14e formed in the space portion. Thereby, the sliding member holding body 12 holding the sliding member 11 is supported by each holding body support mechanism 14. The car 1 and the rear end portion of the cylindrical body 14b have at least a distance that allows the adjustment member 14f to be fitted into the fixed shaft 14d, or the adjustment member 14f is screwed into the screw groove 14e of the cylindrical body 14b in advance. In this state, after the fixed shaft 14d is inserted into the cylindrical body 14b from the outside, the fixed shaft 14d may be fixed to the sliding member holding body 12 with bolts or screws.
[0041]
Needless to say, this is also applicable to the first and second embodiments.
[0042]
Even in this embodiment, even if the guide device 10 is installed directly on the car 1, the same effect as that of the first embodiment described above can be obtained, so that the description of the first embodiment will be given here. I will omit it.
[0043]
The configuration shown in FIG. 4, that is, the configuration in which the sliding portion elastic body 16 is interposed can be applied to the configuration in which the guide device 10 is directly installed on the U-shaped frame 17 fixed to the car 1. It is. Therefore, in this case, the same operational effects as those of the second embodiment can be obtained.
[0044]
(Fourth embodiment)
FIG. 7 is a view for explaining another embodiment of the guide device according to the present invention.
[0045]
This embodiment is an example in which the shape of the sliding member 11 is improved so that the wear state can be recognized.
[0046]
Specifically, the sliding member 11 includes two side sliding bodies 11 a and 11 b that slide on both side surfaces of the guide rail 6 and a central sliding body 11 c that slides on the front side of the guide rail 6. These sliding bodies 11a, 11b, and 11c are formed in convex-shaped portions 11aa, 11ba, and 11ca that gradually bulge from the upper and lower ends of the surface in contact with the guide rail 6 toward the central portion. Grooves 11ab, 11bb, 11cb having a required depth are formed in the direction. The three sliding bodies 11a, 11b, and 11c are formed in a U-shaped cross section by communicating and integrating as shown in FIG.
[0047]
Therefore, according to the embodiment as described above, when the sliding member 11 normally slides on the guide rail 6 and passes through a step such as a guide rail joint, an impact force due to the rail step is transmitted to the car 1. And the car vibration increases.
[0048]
On the other hand, in the present embodiment, since the sliding member 11 has rounded convex portions 11aa, 11ba, and 11ca, the sliding member 11 does not get caught at the step which becomes the joint of the guide rail 6 and passes smoothly. it can. As a result, the impact force when passing through the joint step of the guide rail 6 can be reduced, and the increase in vibration of the car 1 can be suppressed.
[0049]
Further, since the fixed shaft 14d of each holding body support mechanism 14 has substantially the same height as the contact position between the sliding member 11 and the guide rail 6, the impact force when passing through the step is elastic body 14c. It is possible to prevent this shock force from being transmitted to the car 1 and increasing vibration.
[0050]
Further, even if an impact force when passing through the step is applied, no bending force is applied to the fixed shaft 14d, so that sliding at the fitting portion between the space of the cylindrical body 14b and the fixed shaft 14d is smooth. To be done.
[0051]
Further, since the groove portion of the central portion of the sliding member 11 always abuts against the guide rail 6, the wear amount of the sliding member 11 can be easily grasped from the degree of reduction of the groove of the central portion. The replacement time can be accurately determined. In addition, when it is not necessary to grasp | ascertain the abrasion amount of the sliding member 11, the groove | channels 11ab, 11bb, and 11cb do not need to be in each sliding body 11a, 11b, 11c.
[0052]
Therefore, in the present embodiment, it is possible to suppress the vibration due to the impact force generated from the step of the guide rail 6 from being transmitted to the car 1, and to make an accurate determination before the sliding member 11 wears and the vibration increases. Therefore, it is possible to easily replace the car 1 and to avoid an increase in the vibration of the car 1.
[0053]
Further, even if an impact force when passing through the step is applied, no bending force is applied to the fixed shaft 14d, so that sliding at the fitting portion between the space portion of the cylindrical body 14b and the fixed shaft 14d is smooth. To be done.
[0054]
Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.
[0055]
In the embodiment described above, the elastic body 14c is housed in the gap portion between the narrow diameter portion on the rear end side of the fixed shaft 14d and the space portion of the cylindrical body 14b as the holding body support mechanism 14. The configuration may be such that the narrow end portion on the rear end side is eliminated, and the elastic body 14c is interposed between the rear end portion of the fixed shaft 14d and the adjustment member 14f.
[0056]
Moreover, in FIG. 7, although the groove | channel was formed in the center part longitudinal direction of each sliding body 11a, 11b, 11c, if the point is a part which contacts the guide rail 6, it is not necessary to be a center part.
[0057]
In addition, the embodiments can be implemented in combination as much as possible, and in that case, the effect of the combination can be obtained. Further, each of the above embodiments includes various higher-level and lower-level inventions, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, when an invention is extracted because some constituent elements can be omitted from all the constituent elements described in the means for solving the problem, the omitted part is used when the extracted invention is implemented. Is appropriately supplemented by well-known conventional techniques.
[0058]
【The invention's effect】
As described above, according to the present invention, not only the protrusion amount of the guide device from the car upper beam and the car lower beam can be reduced to zero, but also the holding member supporting mechanism having a buffering action on the holding member supporting mechanism can be slid. By supporting the holding body, the ride comfort of the passenger can be enhanced.
[Brief description of the drawings]
FIG. 1 is a configuration diagram seen from a side surface showing an embodiment of an elevator guide device according to the present invention.
FIG. 2 is a structural view of the elevator guide device shown in FIG. 1 as viewed from above.
FIG. 3 is an enlarged view of the elevator guide device shown in FIG. 1 as viewed from the side.
FIG. 4 is a top view illustrating another embodiment of the elevator guide device according to the present invention.
FIG. 5 is a structural view of still another embodiment of the elevator guide device according to the present invention as seen from the side.
FIG. 6 is a structural view of the elevator guide device shown in FIG. 1 as viewed from above.
FIG. 7 is an exploded view for explaining another example of a sliding member that slides with a guide rail.
FIG. 8 is a configuration diagram illustrating a conventional elevator guide device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car 2 ... Elastic body 3 ... Car frame (3a: Car lower beam, 3b: Car upper beam, 3c: Standing frame)
6 ... guide rail 10 ... guide device 11 ... sliding members 11a, 11b ... side sliding body 11c ... central sliding bodies 11aa, 11ba, 11ca ... convex shape portions 11ab, 11bb, 11cb ... groove 12 ... sliding member holding body 14 ... Holding body support mechanism 14b ... cylindrical body 14c ... elastic body 14d ... fixed shaft,
14e ... Screw groove 14f ... Adjustment member 16 ... Sliding part elastic body 17 ... U-shaped frame

Claims (4)

In an elevator guide device that guides a car by sliding on a guide rail standing in a hoistway,
A sliding member holding body that holds a sliding member that slides on the guide rail, and that protrudes support pieces from both ends in the left-right direction;
A cylindrical body attached to the car frame of the car or the side surface of the car, and attached to each support piece end of the sliding member holding body, and inserted into the space of the cylindrical body, A fixed shaft provided at substantially the same height as the contact position between the sliding member and the guide rail, and an elastic body provided between the rear end portion of the fixed shaft and the space of the cylindrical body, A holding body support mechanism including an adjustment member screwed into the space of the cylindrical body for adjusting the elastic force of the elastic body, and the sliding member is brought into contact with the guide rail with a required pressing force. An elevator guide device. In an elevator guide device that guides a car by sliding on a guide rail standing in a hoistway,
A sliding member holding frame that holds a sliding member that slides on the guide rail;
A sliding member holding body that holds the sliding member holding frame by interposing a sliding portion elastic body on at least the left and right surface portions of the sliding member holding frame , and that protrudes support pieces in the left and right directions from both ends ,
A cylindrical body attached to the car frame of the car or the side surface of the car, and attached to each support piece end of the sliding member holding body, and inserted into the space of the cylindrical body, A fixed shaft provided at substantially the same height as the contact position between the sliding member and the guide rail, and an elastic body provided between the rear end portion of the fixed shaft and the space of the cylindrical body, A holding body support mechanism including an adjustment member screwed into the space of the cylindrical body for adjusting the elastic force of the elastic body, and the sliding member is brought into contact with the guide rail with a required pressing force. An elevator guide device. The elevator guide device according to claim 1 or 2,
The sliding member is communicated such that a plurality of side sliding bodies sliding on both side surfaces of the guide rail and a sliding body sliding on the front portion of the guide rail have a U-shaped cross section,
The guide device for an elevator according to claim 1, wherein the guide rail sliding surface portion of the sliding body is formed in a convex body that bulges from the upper and lower ends toward the central portion. The elevator guide device according to claim 1 or 2,
The sliding member is communicated such that a plurality of side sliding bodies sliding on both side surfaces of the guide rail and a sliding body sliding on the front portion of the guide rail have a U-shaped cross section,
The guide rail sliding surface portion of the sliding body is formed into a convex body that bulges from the upper and lower ends toward the center portion, and a groove having a predetermined depth is formed in the longitudinal direction of the guide rail. An elevator guide device characterized by the above.

Images