JPH0749354B2 - Elevator guide rail device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an elevator guide rail device for guiding up and down of an elevator car and a counterweight.

[Prior Art] FIGS. 5 to 7 show a conventional guide rail device for an elevator, and FIG. 5 is a cross-sectional view of a hoistway showing an elevator equipped with a conventional guide rail device. 6
FIG. 7 is a sectional view taken along the line VI-VI of FIG. 5, and FIG. 7 is a perspective view of the upper and lower bracket portions of FIG.

5 to 7, 1 is a hoistway, 2 is a car,
3 is a counterweight, 4 and 5 are car side and weight side guide rails, one pair of which are fixed to the hoistway wall 1a so as to face each other, as described later.

That is, to explain one part of the car-side guide rail 4, it has upper and lower brackets 6 and 7 having an L-shaped cross section, and the surface formed by the vertical side 7a of the lower bracket 7 is formed from the anchor bolt 8a, nut 8b, etc. Is supported and fixed to the hoistway wall 1a by the fastener 8 and is formed by the vertical side 6a of the upper bracket 6.
The surface formed by is fixed to the guide rail 4 by a fastener 9 composed of bolts 9a, rail clips 9b, nuts 9c, etc., and the surface formed by the horizontal side 6b of the upper bracket 6 forms the horizontal side 7b of the lower bracket 7. The surface formed by the horizontal sides 6b and 7b is welded and fixed on the surface, and the guide rail device is constituted by these. Further, the guide rail devices as described above are provided at a large number of vertical positions on the respective car-side guide rails 4, and further, at a large number of vertical positions on the weight-side guide rails 5, guide rail devices on the car side are provided. Almost similar devices are provided respectively.

The car 2 and the counterweight 3 are moved up and down the hoistway 1 by being guided by the car-side and weight-side guide rails 4 and 5.

Although not shown, for example, as shown in Japanese Utility Model Laid-Open No. 52-103566, an upper bracket 6 and a lower bracket 7 are provided.
Long holes are formed in the planes formed by the horizontal sides in a direction orthogonal to each other, and a guide formed by tightening the planes formed by the horizontal sides by fasteners such as bolts and nuts passed through these long holes. There was also a rail device.

[Problems to be solved by the invention] When renovating an elevator, new seismic resistance standards based on the Building Standards Act will be applied from 1981. It is often necessary to additionally install a guide rail device as a member.
On the other hand, when repairing an elevator, there are restrictions on the use of fire, and when using it, it is necessary to check the work site for 2 hours after preparation of the digester and welding work. Especially, many people such as department stores and hotels gather. In the case of buildings, there are severe restrictions on the use of fire. For this reason, in the conventional guide rail device for welding the surfaces formed by the horizontal sides of the upper and lower brackets shown in FIGS. 5 to 7, the welding work is limited to once a week, and the welding leakage spot If it is found, the work may be extended by one week.

Therefore, it is required to assemble the guide rail device by the fireless method, but the surface formed by the horizontal sides of the upper and lower brackets should be as strong as welding by using fasteners whose main members are bolts and nuts. Is not easy, and it is expensive to use high-strength bolts in order to expect high strength, and there is a standard that once the tightening is loosened, it cannot be reused. It becomes uneconomical when it is necessary to put it out again. In addition, when fastening the surfaces formed by the horizontal sides of the upper and lower brackets with ordinary bolts, large-diameter bolts are required, and for fastening a large torque, the clearance on the back side of the guide rail is small, which is dangerous. However, there was a problem that the workability was not good.

On the other hand, Japanese Patent Application Laid-Open No. 51-27249 discloses a technique in which a protruding piece and an engaging piece are slid to connect and fix a predetermined elongated hole. However, this type of technology has a standard that when the surfaces formed by the horizontal sides of the upper and lower brackets are fastened with high-strength bolts and nuts, they cannot be reused once loosened. In addition, when it is necessary to re-center the guide rail, the bolts and nuts need to be replaced, which is uneconomical and does not eliminate the above-mentioned problems.

Further, Japanese Utility Model Laid-Open No. 61-194809 discloses a technique of filling an adhesive in a gap on a horizontal plane other than a contact surface of a rivet or a bolt and fixing the same. However, the gap between the contact surfaces has a great influence on places where installation accuracy is required and places where a large external force is used, such as a guide rail device of an elevator. However, since it is difficult to keep both surfaces parallel to each other, it is difficult to increase the installation accuracy.

Therefore, the present invention has been made to solve the above-mentioned problems, and can deal with the realignment of the center of the guide rail, and when the centering is completed, the horizontal sides of the upper and lower brackets are formed. The surface is firmly fixed by using a fastener and an adhesive, and the reliability of the adhesive is improved. Moreover, it can be installed easily and safely with a normal tool, and it has good earthquake resistance. The subject is to obtain a guide rail device for the elevator.

[Means for Solving Problems] A guide rail device for an elevator according to the present invention guides a lower bracket having an L-shaped cross section in which a surface formed by a vertical side is fixed to a hoistway wall and a surface formed by the vertical side. An upper bracket fixed to a rail and having an L-shaped cross section, wherein the lower bracket receives a surface formed by horizontal sides of the upper bracket, and has a plurality of surfaces formed by horizontal sides of the lower bracket and the upper bracket. In a guide rail device of an elevator fixed by a fastener and an adhesive, a plurality of fitting holes are formed on a surface formed by the horizontal side of the upper bracket, and a surface formed by the horizontal side of the lower bracket is formed. When a plurality of protrusions are formed and the lower bracket and the upper bracket are fixed to each other with a fastener and an adhesive, when the plurality of fitting holes and the plurality of protrusions are in a fitted state There is a gap between the surfaces formed by the horizontal sides of the lower bracket and the upper bracket and filled with the adhesive in the horizontal direction.

[Operation] In the elevator guide rail device according to the present invention, by fixing the surfaces formed by the horizontal sides of the upper bracket and the lower bracket by using the fastener and the adhesive together, the load is dispersed and the fasteners are compared. A normal bolt with a relatively small diameter may be used, and even a small gap on the rear side of the guide rail may be tightened with a low torque using a normal tool, and horizontal sides other than the multiple fitting parts of both brackets are formed. Since there is a gap between the surfaces, it is necessary to perform strict control at the installation site of the elevator, and the bonding of the surfaces formed by both horizontal sides with an adhesive can be done easily and reliably with an adhesive of a certain thickness,
Adhesive bonding can be made highly reliable.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS.

1 is a side view showing an elevator guide rail device according to an embodiment of the present invention, FIG. 2 is a perspective view of an upper bracket and a lower bracket shown in FIG. 1, and FIG. It is the side view which carried out the cross section of a part of principal part shown in the figure. In the drawings, the same reference numerals as those in FIGS. 5 to 7 indicate corresponding parts.

In the figure, 6c is a horizontally long bolt 9a insertion hole formed in the surface formed by the vertical side 6a of the upper bracket 6, and 6d is a vertically long bolt formed at both ends of the surface formed by the horizontal side 6b of the upper bracket 6. Holes 6e are fitting holes formed by arranging a plurality of holes vertically and horizontally at a required pitch between bolt holes 6d on the surface formed by the horizontal side 6b, and 7c is a vertical side 7a of the lower bracket 7. Horizontal anchor bolt 8a formed on the surface formed by
Insertion hole, 7d is a vertically long bolt hole formed at both ends of the surface formed by the horizontal side 7b of the lower bracket 7, and 7e is a horizontal side 7b.
Formed between the bolt holes 7d on the surface formed by, 7f is a trapezoidal pedestal formed at the root of the projection 7e, 7g is formed around the bolt hole 7d at the same height as the pedestal 7f It is a step. The bolt hole 7d and the protrusion 7e of the lower bracket 7 are arranged at positions facing the bolt hole 6d and the fitting hole 6e of the upper bracket 6, respectively, and the protrusion 7e and the pedestal 7f.
Are formed on the surface formed by the horizontal side 7b of the lower bracket 7 so as to vertically project upward by half blanking by press working. The surface formed by the vertical side 7a of the lower bracket 7 is supported and fixed to the hoistway wall 1a by the fastener 8 in which the anchor bolt 8a is inserted into the insertion hole 7c, and the surface formed by the vertical side 6a of the upper bracket 6 is It is fixed to the guide rail 4 by a fastener 9 in which a bolt 9a is inserted into the insertion hole 6c. The adhesive 10 is applied to the upper surface formed by the horizontal side 7b of the lower bracket 7, and the projection 7e is fitted into the fitting hole 6e of the upper bracket 6.
Is fitted and the surface formed by the horizontal side 6b of the upper bracket 6 is supported on the pedestal 7f and the step 7g.
The surface formed by the fastening bolt 11a is inserted into the bolt holes 6d, 7d, and is fastened by a fastener 11 having a nut 11b or the like that is fastened to these bolts 11a.
The gap C having a height of about 0.1 to 1.0 mm formed between the spaces formed by b and 7b is filled with the adhesive 10, and a part of the adhesive 10 is projected.
The space between 7e and the fitting hole 6e is also filled, and the horizontal side is provided by the adhesive 10.
The surfaces formed by 6b and 7b are bonded. The structure of this embodiment other than that described above is the same as the conventional guide rail device shown in FIGS. 5 to 7.

FIG. 4 is a side view showing a guide rail device for an elevator according to another embodiment of the present invention, in which a part of a main part is shown in section.

FIG. 4 shows another embodiment of the present invention. In this embodiment, when the fitting hole 6e is formed by press working from above on the surface formed by the horizontal side 6b of the upper bracket 6, the punch of the press is pressed. By increasing the gap between the die and the die, a return portion 6f projecting downward from the periphery of the fitting hole 6e is intentionally formed, and a pedestal is not provided at the base of the protrusion 7e of the lower bracket 7, With the protrusion 7e fitted in the fitting hole 6e, the return portion 6f is supported on the surface formed by the horizontal side 7b of the lower bracket 7, and the gap C is formed between the surfaces formed by the horizontal sides 6b, 7b.
Is formed. The structure of this embodiment other than that described above is the same as the guide rail device of the embodiment shown in FIGS. 1 to 3.

The guide rail devices of both examples configured as described above,
The following effects are obtained.

The fastening bolts 11a that fasten the surfaces formed by the horizontal sides 6b and 7b of the upper and lower brackets 6 and 7 are ordinary bolts having a relatively small diameter and are inexpensive, and are bonded by the adhesive 10 and the fitting holes 6e.
The load is shared by the engagement of the
a can be a normal bolt with a relatively small diameter, so that even with a small gap on the rear side of the guide rail, the tightening bolt 11
It suffices to tighten the nut 11b on the a, and therefore the safety and work efficiency at the time of tightening are good.

The load applied to the upper and lower brackets 6 and 7 at the time of an earthquake is large in the frontage direction of the hoistway 1, that is, in the interval dimension direction of the pair of guide rails 4. It can be increased in the direction, which improves seismic resistance. The seismic resistance can be similarly improved even if the protrusion 7e has an elliptical shape and the elongated shape has a direction perpendicular to the front direction.

Since the fitting hole 6e provided on the surface formed by the horizontal side 6b of the upper bracket 6 and the projection 7e provided on the surface formed by the horizontal side 7b of the lower bracket 7 are fitted, (a) the horizontal side 7b of the lower bracket 7 When the adhesive 10 is applied on the surface formed by the and the surface formed by the horizontal side 6b of the upper bracket 6 is placed, the fitting hole 6e becomes the escape hole for the adhesive 10.

(B) The lower bracket 7 and the upper bracket 6 can be positioned on a horizontal plane, and the frontal direction and the parallelism of the back surfaces of the both brackets can be secured.

(C) The shear strength of the fixed parts of the upper and lower brackets 6, 7 can be secured.

(D) The solidified state of the adhesive 10 can be confirmed from above the fitting hole 6e. In this case, if the color of the adhesive is different from that of the bracket, the solidified state can be more easily confirmed without making an error.

(E) Not the surface formed by the horizontal side of the lower bracket,
Since the fitting hole 6e is provided on the surface formed by the horizontal side 6b of the upper bracket 6, the adhesive 10 is collected on the surface formed by the horizontal side 6b and does not fall downward.

(F) The adhesive area between the adhesive 10 and the upper and lower brackets 6, 7 is increased, and the adhesive strength is increased.

(G) You can check the filling status of the adhesive 10 to the adhesive part,
The adhesive can be sucked from the fitting hole 6e side of the upper bracket 6 and the filling state of the adhesive 10 can be confirmed from the other fitting hole 6e.

(H) The film thickness of the adhesive can be controlled.

(I) By adjusting the pitches of the projections 7e of the lower bracket 7 and the fitting holes 6e of the upper bracket 6, the distance between the hoistway wall 1a and the back surface of the guide rail 4 can be reduced as shown in FIGS. The protrusion length B of the upper bracket 6 can be adjusted at the required pitch A according to the above, and it can be used for various elevators.

Since welding is not performed at the installation site of the elevator, the advantage of the fire-free construction method, that is, the working time is not limited, the safety is improved, and it is suitable for use in repair such as modernization of the elevator.

A predetermined height gap C can be formed between the surfaces formed by the horizontal sides 6b, 7b of the upper and lower brackets 6, 7, and this height can be adjusted by the height of the pedestal 7f or the return portion 6f. You can adjust the height. Therefore, the adhesive force can be made uniform if the adhesive 10 can control the thickness, and can be controlled by adjusting the height of the pedestal 7f or the return portion 6f.

Even in the case where the return portion 6f shown in FIG. 4 is provided, the return portion 6f around the fitting hole 6e formed by pressing should be closely observed over the entire periphery of the surface formed by the horizontal side 7b of the lower bracket 7 when closely observed. However, since there are small gaps, the adhesive 10 enters the fitting holes 6e through these gaps, and the fitting holes 6e serve as escape holes for the adhesive 10.

In addition, the protrusion 7e on the surface formed by the lower bracket 7 and the fitting hole 6e of the upper bracket 6 are fitted to each other at such a height that the pedestal 7f and the return portion 6f work effectively against the shearing force. be able to.

Since the thickness of the adhesive 10 is controlled by the upper and lower brackets 6 and 7, it is economical because an inexpensive commercially available adhesive can be purchased and used according to the time of use. It should be noted that it is not appropriate to insert the spacer between the surfaces formed by the horizontal sides of the upper and lower brackets, because the number of parts and the number of steps increase. Also, adding solid objects such as glass globules for thickness control to the adhesive itself makes it difficult to adjust the production amount according to the construction site as it is a dedicated product, and it becomes expensive. Inappropriate.

[Advantages of the Invention] As described above, according to the elevator guide rail device of the present invention, a plurality of fitting holes are formed in the surface formed by the horizontal side of the upper bracket, and the horizontal side of the lower bracket is formed. When a plurality of protrusions are formed on the surface and the lower bracket and the upper bracket are fixed with a fastener and an adhesive, when the plurality of fitting holes and the plurality of protrusions are in a fitted state, the lower bracket and the Since there is a gap filled with adhesive in the horizontal direction between the surfaces formed by both horizontal sides of the upper bracket, the surfaces formed by the vertical sides of the upper bracket and the lower bracket are respectively formed as guide rails and hoistway walls. The brackets are fixed to each other, and the surfaces formed by the horizontal sides of both brackets are fixed to a plurality of fasteners such as bolts and nuts with an adhesive to form the horizontal sides other than the contact surfaces of the fitting parts of both brackets. Since a gap filled with adhesive is formed between the two surfaces, the surfaces formed by the horizontal sides of the upper bracket and the lower bracket are fixed together by using a fastener and adhesive, so that ordinary bolts of relatively small diameter are used. Therefore, the upper bracket and the lower bracket can be fixed securely with good workability using a simple ordinary tool. In particular, a gap is provided between the surfaces formed by the horizontal sides of both brackets to fill the adhesive. There is an effect that the adhesion of the surface formed by the horizontal side can be easily and surely performed by the adhesive having a constant thickness, and the reliability of the adhesion by the adhesive can be improved.

Then, until a gap is provided between the surfaces formed by the horizontal sides of both brackets and the adhesive is filled, a special fastener for re-centering is not required.

Further, when the plurality of fitting holes and the plurality of protrusions are in a fitted state, a gap filled with an adhesive in a horizontal direction between surfaces formed by both horizontal sides of the lower bracket and the upper bracket is With a thickness of 0.1 mm to 1.0 mm, the mechanical strength becomes stable and strong.

Then, when the plurality of fitting holes and the plurality of projections are in a fitted state, the gap filled with the adhesive in the horizontal direction between the surfaces formed by both horizontal sides of the lower bracket and the upper bracket, The fitting hole of the surface formed by the horizontal side of the upper bracket is supported on the trapezoidal pedestal formed at the base of the protrusion protruding on the surface formed by the horizontal side of the lower bracket,
In the case where the pedestal is formed in the height dimension, the dimensional accuracy of the gap is increased, and the stability of mechanical strength is maintained.

Furthermore, when the plurality of fitting holes and the plurality of protrusions are in a fitted state, the gap filled with the adhesive in the horizontal direction between the surfaces formed by both horizontal sides of the lower bracket and the upper bracket is When the fitting hole provided on the surface formed by the horizontal side of the upper bracket is pressed, the return portion intentionally projected downward is supported on the surface formed by the horizontal side of the lower bracket, and the height dimension of the return portion is set. The one formed in the above is advantageous in terms of manufacturing cost.

[Brief description of drawings]

FIG. 1 is a side view showing an elevator guide rail device according to an embodiment of the present invention, FIG. 2 is a perspective view of the upper and lower brackets, and FIG. FIG. 4 is a side view showing a guide rail device for an elevator according to another embodiment of the present invention, in which a part of a main portion is shown in section.
FIG. 5 is a transverse sectional view of a hoistway showing an elevator equipped with a conventional guide rail device, FIG. 6 is a sectional view taken along line VI-VI in FIG. 5, and FIG. 7 is upper and lower bracket portions in FIG. It is the perspective view which decomposed | disassembled a part of FIG. In the figure, 1 ... Hoistway, 1a ... Hoistway wall 4 ... Guide rail, 6 ... Upper bracket 6a ... Vertical side, 6b ... Horizontal side 6d ... Bolt hole, 6e ... Fitting hole 6f ...... Return part, 7 ...... Lower bracket 7a ...... Vertical side, 7b ...... Horizontal side 7d ...... Bolt hole, 7e ...... Protrusion 7f ...... Pedestal, 7g ...... Step section 8, 9 ...... Fastener , 10 ... adhesive 11 ... fasteners, 11a ... bolts 11b ... nuts. The same reference numerals and symbols in the drawings indicate the same or corresponding parts.

Claims (4)

[Claims] 1. A lower bracket having an L-shaped section in which a surface formed by the vertical side is fixed to a hoistway wall, and an upper bracket having an L-shaped section in which a surface formed by the vertical side is fixed to a guide rail, A lower bracket receives a surface formed by horizontal sides of the upper bracket, and a guide rail device for an elevator in which the surfaces formed by horizontal sides of the lower bracket and the upper bracket are fixed by a plurality of fasteners and an adhesive. A plurality of fitting holes are formed on a surface formed by the horizontal side of the upper bracket, and a plurality of protrusions are formed on a surface formed by the horizontal side of the upper bracket to fasten the lower bracket and the upper bracket. When fixing with the tool and the adhesive,
When the plurality of fitting holes and the plurality of protrusions are in a fitted state, there is a gap filled with an adhesive in a horizontal direction between surfaces formed by both horizontal sides of the lower bracket and the upper bracket. Elevator guide rail device characterized in that. 2. When the plurality of fitting holes and the plurality of protrusions are in a fitted state, an adhesive is filled in a horizontal direction between surfaces formed by both horizontal sides of the lower bracket and the upper bracket. The guide rail device for an elevator according to claim 1, wherein the gap is set to about 0.1 mm to 1.0 mm. 3. When the plurality of fitting holes and the plurality of protrusions are in a fitted state, an adhesive is filled in a horizontal direction between surfaces formed by both horizontal sides of the lower bracket and the upper bracket. The gap is such that the fitting hole of the surface formed by the horizontal side of the upper bracket is supported on the trapezoidal pedestal formed at the base of the protrusion protruding on the surface formed by the horizontal side of the lower bracket, and the height of the pedestal is increased. The guide rail device for an elevator according to claim 1 or 2, characterized in that the guide rail device is formed in a vertical dimension. 4. When the plurality of fitting holes and the plurality of protrusions are in a fitted state, an adhesive is filled in a horizontal direction between surfaces formed by both horizontal sides of the lower bracket and the upper bracket. The gap is formed by supporting the return portion, which is intentionally projected downward when press-fitting the fitting hole provided on the surface formed by the horizontal side of the upper bracket, to the surface formed by the horizontal side of the lower bracket. The elevator guide rail device according to claim 1, 2, or 3, wherein the guide rail device is formed to have a height dimension.