JPH07206316A - Guide rail for elevator - Google Patents

Abstract

PURPOSE:To prevent the generation of vibration and swinging of an elevator car when a main guide shoe passes a joint during the elevating operation of the elevator car. CONSTITUTION:In a guide rail for an elevator, which includes a main guide rail 4 installed extending from the upper end of an elevator shaft to the lower end, and holds an elevator car along the main guide rail through a main guide shoe in such a manner as to slide, the sliding contact surface 42 of the main guide rail with the main guide shoe is covered with an integrally formed sheet- like main rail cover 10 to eliminate a difference in level of each joint 42.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator guide rail provided with a main guide rail that slidably holds a main guide shoe of an elevator car, and particularly to prevent vibration of the elevator car to improve riding comfort. It relates to an elevator guide rail.

[0002]

2. Description of the Related Art FIG. 3 is a side view schematically showing a general elevator guide rail and its peripheral structure. In the figure, 1 is a hoistway, 2 is an elevator car that is driven up and down along the hoistway 1, 3 is a counterweight that is disposed so as to face the elevator car 2, and is vertically driven integrally with the elevator car 2, 4 is a counterweight A main guide rail 5 that holds the elevator car 2 slidably along the hoistway 1 is a second guide rail that holds the counterweight 3 slidably along the hoistway 1.

The elevator car 2 and the counterweight 3 are connected by a wire rope (not shown), as is well known.
This wire rope is driven by a motor (not shown) arranged at the upper end of the hoistway 1. Further, the main guide rail 4 and the second guide rail 5 form an elevator guide rail.

FIG. 4 is a plan view showing the elevator guide rail in FIG. 3 as viewed from above, and 6 is a main guide shoe which is provided above and below the elevator basket 2 and slides with the main guide rail 4, A second guide shoe 7 is provided on the counterweight 3 and slides on the second guide rail 5.

FIG. 5 is an enlarged perspective view showing a concrete structure of the conventional elevator guide rail in FIGS. 3 and 4, and here, for convenience, only the main guide rail 4 is shown.
Reference numeral 40 is a plurality of main guide rail pieces that are connected to each other to form the main guide rail 4, 41 is a joint for connecting the main guide rail pieces 40, and 42 is a sliding contact surface with the main guide shoe.

As shown in FIG. 5, the main guide rail 4 is constructed by stacking and connecting a plurality of main guide rail pieces 40 per unit meter according to the number of floors. Therefore, the seam 41 of the main guide rail 4 which is joined stepwise and has a step exists in the hoistway 1 at several places or more. Although not shown, the second guide rail 5 also has a joint structure similar to that of the main guide rail 4.

Next, the operation of the conventional elevator guide rail will be described with reference to FIGS. The elevator basket 2 has a sliding contact surface 42 of the main guide rail 4.
It is driven up and down along the main guide rail 4 installed from the upper end to the lower end of the hoistway 1 via the main guide shoe 6 that abuts against the. At the same time, the counterweight 3 is driven up and down along the second guide rail 5.

At this time, the main guide shoe 6 of the elevator car 2 passes through the seam 41 of the main guide rail 4 every time the elevator car 2 is moved up and down by a predetermined distance, and the vibration due to the step of the seam 41 is transmitted as a vibration to the elevator car 2. Similarly, the second guide shoe 7 of the counterweight 3 transmits vibrations and swings to the counterweight 3 by means of the joints of the second guide rails 5, and these vibrations and swings are slight, but not in the elevator basket. 2 can also be transmitted.

Thus, the seam 41 of the main guide rail 4 is
If the elevator car 2 vibrates and shakes back and forth or left and right due to the step of the seam 41 when the elevator car 2 passes over the passenger compartment, it causes discomfort to passengers and impairs riding comfort.

In particular, in recent years, since the main guide shoe 6 that slides in opposition to the main guide rail 4 does not have a built-in spring for a vibration absorber, the main guide shoe 6 is joined by the seam 41 while the elevator car 2 is running. The elevator car 2 easily vibrates after passing through, and it is not as popular as the old guide shoes with built-in springs.

Further, in the elevator installation work,
Although a correction work for eliminating the step difference of the seam 41 of the main guide rail 4 is performed, it is difficult to perform the correction with high accuracy because it is a manual work, and the step difference of the seam 41 remains slightly. Therefore, it is difficult to completely prevent the vibration of the elevator car 2.

[0012]

As described above, the conventional elevator guide rail has a problem in that the elevator cage vibrates when passing through the joints, which causes passengers to feel uncomfortable.

The present invention has been made to solve the above problems, and prevents vibration of the main guide shoe due to passage of the main guide rail joint when the elevator car moves up and down, so that the elevator car and the balance are balanced. The purpose of the present invention is to obtain an elevator guide rail that eliminates the sway of weights and improves passenger comfort.

[0014]

An elevator guide rail according to claim 1 of the present invention comprises a main guide rail installed from an upper end to a lower end of a hoistway, and a main guide shoe guides an elevator car through a main guide shoe. In an elevator guide rail that slidably holds along a rail, a sliding contact surface of the main guide rail with the main guide shoe is covered with a sheet-shaped main rail cover that is integrally formed. .

According to a second aspect of the present invention, in the elevator guide rail according to the first aspect, the main rail cover is made of polyvinyl chloride.

Further, an elevator guide rail according to a third aspect of the present invention is the elevator guide rail according to the first or second aspect, wherein the main rail cover has a plurality of grooves extending along the sliding direction of the main guide shoe. It has a convex portion.

The elevator guide rail according to claim 4 of the present invention is the elevator guide rail according to any one of claims 1 to 3, wherein the main rail cover is fixed to the sliding contact surface via a plurality of mounting screws. It was done.

The elevator guide rail according to a fifth aspect of the present invention is the counterweight according to any one of the first to fourth aspects, wherein the counterweight is arranged so as to face the elevator car and is vertically moved integrally with the elevator car. A second guide rail that slidably holds the sheet through the second guide shoe, and a sliding contact surface of the second guide rail with the second guide shoe has a sheet shape integrally formed. The second rail cover of FIG.

According to a sixth aspect of the present invention, in the elevator guide rail according to the fifth aspect, the second rail cover is made of polyvinyl chloride.

The elevator guide rail according to claim 7 of the present invention is the elevator guide rail according to claim 5 or 6, wherein the second rail cover is extended along the sliding direction of the second guide shoe. It has a plurality of grooves or protrusions.

The elevator guide rail according to claim 8 of the present invention is the elevator guide rail according to any one of claims 5 to 7, wherein the second rail cover is provided with a second guide shoe by a plurality of mounting screws. It is fixed to the sliding contact surface of.

[0022]

According to the first aspect of the present invention, by covering the main guide rail from the upper end to the lower end with the main rail cover and eliminating the step difference at each joint, the vibration of the elevator car when the main guide shoe 6 passes through the joint. And prevent the occurrence of shaking. As a result, passenger comfort is improved and passengers can comfortably use the elevator.

According to the second aspect of the present invention, by using the main rail cover made of polyvinyl chloride which easily follows the surface shape of the main guide rail, the step difference of the seam is surely eliminated.

Further, according to the third aspect of the present invention, the slidability of the main guide shoe is improved by the groove or the convex portion provided on the main rail cover along the ascending / descending direction of the elevator car, and the elevator car is ascended and descended. Vibration of time is further suppressed.

According to the fourth aspect of the present invention, the main rail cover is securely fixed to the main guide rail by the mounting screw.

Further, according to a fifth aspect of the present invention, the second guide rail facing the second guide shoe of the counterweight is covered with the second rail cover from the upper end to the lower end to eliminate the step difference in the seam. This prevents the balance weight and the vibration and swing of the elevator car from occurring when the second guide shoe passes through the seam.

According to the sixth aspect of the present invention, by using the second rail cover made of polyvinyl chloride, which easily follows the surface shape of the second guide rail, the step difference of the joint is surely eliminated.

Further, according to a seventh aspect of the present invention, by the groove or the convex portion provided on the second rail cover along the ascending / descending direction of the counterweight, the counterweight and the elevator car at the time of ascending / descending the elevator car are lifted. Vibration is further suppressed.

According to the eighth aspect of the present invention, the second rail cover is securely fixed to the second guide rail by the mounting screw.

[0030]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention (claims 1 to 4).
FIG. 4 is an enlarged perspective view showing a part of FIG.
And 42 are the same as above. The overall structure of the elevator guide rail is as shown in FIGS. 3 and 4.

A sheet-shaped main rail cover 10 covers the sliding contact surface 42 of the main guide rail 4 with the main guide shoe 6 (see FIG. 4) from the upper end to the lower end, and is a resin having high strength and durability. For example, it is made of integrally formed thin polyvinyl chloride. Reference numeral 20 denotes a mounting screw for fixing the main rail cover 10 to the main guide rail 4, which is provided at arbitrary plural positions along the extension direction of the main guide rail 4.

FIG. 2 is a perspective view showing only the main rail cover 10 in FIG. Reference numeral 11 denotes a plurality of grooves or protrusions formed on the surface of the main rail cover 10 and extends along the sliding direction of the main guide shoe 6.

As described above, the main guide rail 4 is covered with the main rail cover 10 on the sliding contact surface 42 that faces the main guide shoe 6 of the elevator car 2 that moves up and down along the hoistway 1. Since the main rail cover 10 is made of polyvinyl chloride which is integrally formed without breaks, it is possible to easily follow the surface shape of the main guide rail 4 and reliably eliminate the step difference of the seam 41.

Therefore, the elevator car 2 is prevented from transmitting vibrations from the main guide shoe 6 during the up and down movement.
No shaking will occur. As a result, passengers can comfortably use the elevator.

Further, as shown in FIG. 2, the main rail cover 10
Since a myriad of thin grooves or projections 11 are formed on the surface of the main guide shoe 6 along the sliding direction with the main guide shoe 6, the main guide shoe 6 easily slides on the main rail cover 10, and Vibration can be suppressed.

Further, when the main rail cover 10 is worn and deteriorated, the main guide rail 4 is not replaced,
Since only the main rail cover 10 needs to be replaced, the economic effect is immeasurable.

Example 2. (Corresponding to claims 5 to 8) In the first embodiment, the case where the main rail cover 10 is covered only on the sliding contact surface 42 of the main guide rail 4 has been described. The sliding contact surface of the counterweight 3 with the second guide shoe 7 (see FIG. 4) may be covered with a second rail cover (not shown) similar to that in FIG.

In this case also, the second rail cover is made of vinyl chloride which is integrally formed without breaks.
It is assumed that a plurality of grooves or protrusions are formed on the surface along the sliding direction with the guide shoe 7 and are fixed to the second guide rail 5 by a plurality of mounting screws.

As a result, the stepwise joining at the joint of the second guide rail 5 is changed to a smoothly inclined joining,
Since the vibration on the step is eliminated, the vibration during traveling is reduced and the passenger's comfort is further improved.

Further, due to the groove or the convex portion of the second rail cover, the slidability of the second guide shoe 7 is improved, the vibration of the counterweight 3 and the elevator car 2 is further suppressed, and the riding comfort is improved. To do. Furthermore, since the second rail cover is securely fixed to the second guide rail 5 by the mounting screw, the reliability is not impaired.

Further, in the above-mentioned first and second embodiments, the case of the elevator guide rail provided with the counterweight 3 and the second guide rail 5 is shown, but only the elevator basket 2 and the main guide rail 4 are shown. Needless to say, it can be applied to the used elevator guide rails and has the same effect.

[0042]

As described above, according to the first aspect of the present invention, the main guide rail is installed from the upper end to the lower end of the hoistway, and the elevator car is provided along the main guide rail via the main guide shoe. In an elevator guide rail that is held slidably, the sliding contact surface of the main guide rail with the main guide shoe is covered by a sheet-shaped main rail cover that is integrally formed so that there is no step at each seam. As a result, vibration and sway of the elevator car are prevented when the main guide shoe 6 passes through the seam while the elevator car is moving up and down, and there is an effect that an elevator guide rail with improved passenger comfort is obtained. .

According to a second aspect of the present invention, in the first aspect, the main rail cover is made of polyvinyl chloride, and the main rail cover easily follows the surface shape of the main guide rail, and the step difference of the seam is surely made. Since the main guide shoe is prevented from vibrating due to passage of the main guide rail seam when the elevator car goes up and down, the elevator basket and the counterweight are not swayed and the passenger comfort is improved. There is an effect that the guide rails for can be obtained.

Further, according to claim 3 of the present invention, in claim 1 or 2, a plurality of grooves or protrusions extending along the sliding direction of the main guide shoe are formed on the surface of the main rail cover. Since the above-mentioned structure is provided, the slidability of the main guide shoe is improved, the vibration when the elevator car is moved up and down is further suppressed, and there is an effect that an elevator guide rail with further improved passenger comfort can be obtained.

According to claim 4 of the present invention, in any one of claims 1 to 3, the main rail cover is fixed to the sliding contact surface via a plurality of mounting screws,
Since it is firmly fixed to the main guide rail, vibration of the main guide shoe due to passage of the main guide rail when moving up and down the elevator basket is prevented, so that the elevator basket and the counterweight are reliably swayed and passengers are prevented. There is an effect that an elevator guide rail with improved riding comfort can be obtained.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the second counterweight is disposed so as to face the elevator car and moves up and down integrally with the elevator car. A second guide rail that slidably holds the guide shoe is provided, and a sliding contact surface of the second guide rail with the second guide shoe has a second sheet-like shape integrally formed. Since it is covered by the rail cover to eliminate the step of the seam, it is possible to prevent the balance weight and the vibration and sway of the elevator car from occurring when the second guide shoe passes through the seam. There is an effect that an elevator guide rail can be obtained in which the vibration of the main guide shoe due to the passage of the main guide rail joint is prevented and the passenger's comfort is further improved.

According to claim 6 of the present invention, in claim 5, the second rail cover is made of polyvinyl chloride so as to surely eliminate the step difference of the seam. It is possible to obtain the elevator guide rail in which the vibration of the counterweight due to the passage of the second guide rail seam is prevented and the passenger comfort is further improved.

Further, according to claim 7 of the present invention, in claim 5 or 6, a plurality of the plurality of rails extended on the surface of the second rail cover along the sliding direction of the second guide shoe are provided. Since the groove or the convex portion is provided to improve the slidability, the counterweight and the vibration of the elevator car when the elevator car is moved up and down are further suppressed, and the elevator guide rail that further improves passenger comfort is provided. There is an effect to be obtained.

Further, according to claim 8 of the present invention, in any one of claims 5 to 7, the second rail cover has a sliding contact surface with the second guide shoe by a plurality of mounting screws. Since it is fixed to the second guide rail, it is possible to reliably eliminate the sway of the elevator basket and the counterweight, and to obtain an elevator guide rail that improves passenger comfort. is there.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view showing a part of a first embodiment of the present invention.

FIG. 2 is a perspective view showing a main rail cover according to the first embodiment of the present invention.

FIG. 3 is a side view showing a general elevator guide rail together with its peripheral structure.

FIG. 4 is a plan view showing a state in which the general elevator guide rail of FIG. 3 is viewed from above.

FIG. 5 is an enlarged perspective view showing a specific configuration of a conventional elevator guide rail.

[Explanation of symbols]

 1 Hoistway 2 Elevator Basket 3 Counterweight 4 Main Guide Rail 5 Second Guide Rail 6 Main Guide Shoe 7 Second Guide Shoe 10 Main Rail Cover 11 Groove or Convex 20 Mounting Screw 41 Seam 42 Sliding Contact Surface

Claims (8)

[Claims] 1. A guide rail for an elevator, comprising a main guide rail installed from an upper end to a lower end of a hoistway, and holding an elevator basket slidably along the main guide rail via a main guide shoe, An elevator guide rail, wherein a sliding contact surface of the main guide rail with the main guide shoe is covered with a sheet-like main rail cover integrally formed. 2. The elevator guide rail according to claim 1, wherein the main rail cover is made of polyvinyl chloride. 3. The elevator guide rail according to claim 1 or 2, wherein the main rail cover has a plurality of grooves or protrusions extending along a sliding direction of the main guide shoe. . 4. The elevator guide rail according to claim 1, wherein the main rail cover is fixed to the sliding contact surface via a plurality of mounting screws. 5. A second guide rail, which is slidably held by a second guide shoe so as to slidably hold a counterweight, which is arranged so as to face the elevator car and which moves up and down integrally with the elevator car, The sliding contact surface of the second guide rail with the second guide shoe is covered by a sheet-shaped second rail cover that is integrally formed. Guide rail for one of the elevators. 6. The elevator guide rail according to claim 5, wherein the second rail cover is made of polyvinyl chloride. 7. The second rail cover according to claim 5, wherein the second rail cover has a plurality of grooves or protrusions extending along a sliding direction of the second guide shoe. Elevator guide rail. 8. The second rail cover is fixed to a sliding contact surface with the second guide shoe by a plurality of mounting screws, according to any one of claims 5 to 7. Elevator guide rails.