JPS6131026Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a vibration isolating device for a drive device in an escalator that is installed at an angle between floors of a building.

[Technical background of the invention and its problems]

As shown in FIGS. 1 to 4, a conventional escalator has a bed frame 2 attached to an upper flat part 1a of a truss 1 installed at an angle between each floor of a building.
A drive device 4 is installed so that the drive device 4 and the bed 3 overlap each other, and a main drive wheel 7 is connected to a drive wheel (drive sprocket wheel) 5a of a reduction gear 5 by this drive device 4 via a transmission chain 6. A guide rail 8 is provided along the truss 1 between the main drive wheel 7 and the driven wheel (not shown), and is guided by the guide rail 8 and is wound between the main drive wheel 7 and the driven wheel. Each moving step 10 is provided in the step chain 9, a pair of balustrade panels 11 are arranged side by side on the truss 1 located on both sides of the moving step 10, and a handrail rail is integrally provided on the upper part of the balustrade panel 11. A moving handrail (handrail) 12 (not shown) is wound around the movable handrail 12, and the moving handrail 12 is configured to travel in the same direction in synchronization with the moving step 10.

In particular, as shown in FIG. 4, the drive device 4 in the conventional escalator described above is configured in a cross-shaped structure with a pair of angle frames 2a and a pair of channel frames 2b on the flat part 1a of the truss 1. The bed frame 2 is fixed, and the channel frame 2b is fixed.
A pair of guide ears 2b ₁ and 2b ₂ are erected on both sides of the
A bed 3 is placed on the bed frame 2 located on the inside, and a pair of elongated holes 3a are bored in each side of the bed 3 where the channel frame 2b is located. As shown in , each long hole 3a
A pair of vibration-proof seat plates 13 and 14 are interposed between the
The bed frame 2 and the bed 3 are fixed by the mounting member 15, and each adjustment screw 1 is attached to a pair of rising pieces 3b attached to the other side of the bed 3.
6, and the other end of each adjustment screw 16 is connected to each upright piece 2c of the bed frame 2 with a pair of vibration-proof seat plates 17.
When the transmission chain 6 is expanded and relaxed, the mounting members 15 are loosened and the adjustment screws 16 are used to move the entire bed 3 along the elongated holes 3a. This allows the drive device 4 installed on the bed 3 to be adjusted without causing vibration. The drive device 4 is composed of a reduction gear 5 and an electric motor 18, as shown in FIGS. 1 and 4, and the two are connected by a joint 19.

Therefore, the escalator drive device described above is
By driving the electric motor 18, the reducer 5 is operated via the joint 19, and the drive wheel 5a of the reducer 5 is rotated, and the drive wheel 5a is connected to the transmission chain 6.
The main drive wheel 7 is rotated through the drive wheel 7, and the step chain 9 is actuated to move the moving step 10 as described above.
and the movable handrail 12 are driven in the same direction in synchronization.

On the other hand, vibrations and noise generated when the driving device 4 is driven are caused by the vibrations and noises caused by the mounting members 15 and the adjusting screws 1.
Vibration can be absorbed by vibration isolating seat plates 13, 14 and 17 respectively interposed in 6.

However, in the escalator vibration isolating device described above, when the transmission chain 6 is relaxed, each of the mounting members 15 is relaxed in order to move the entire bed 3, and then each adjustment screw 16 is used to move the bed 3. Because the shaft centers of the electric motor 18, reducer 5, etc. installed on the bed 3 are shifted each time the vehicle is moved, alignment of the shafts is not only troublesome, but also requires Swing plate 13, 14
and 17 must be returned to their original positions and installed again without damaging them, and there is also a disadvantage that time is wasted for installation adjustments.

On the other hand, as shown in FIG. 5, there is a relatively large vibration-proof seat plate 1 between the bed frame 2 and the bed 3.
Although it has been proposed that 3′ is inserted,
This is also substantially the same as the escalator vibration isolator described above, and has drawbacks such as troublesome handling and adjustment operations.

[Purpose of invention]

In order to eliminate the above-mentioned drawbacks, the present invention provides stud bolts having stepped portions at the corner corners of the angle frame of the bed frame fixed to the flat portion of the truss, and each stud bolt has a stepped portion. Both ends of a pair of channel frames are fixed to the step part with a pair of upper and lower vibration isolators interposed, a bed is provided across both channel frames, and a drive device is installed on this bed. The above-mentioned two channel frames and the bed are connected by adjustment screws, thereby simplifying handling and adjustment operations, and allowing expansion and contraction of the transmission chain to be adjusted without damaging each vibration isolating material. The present invention provides a vibration isolating device for an escalator for the purpose of

[Example of idea]

Hereinafter, the present invention will be described with reference to an illustrated embodiment. It should be noted that the present invention will be described with the same reference numerals attached to the same constituent members as those of the above-described embodiment.

In Figures 1, 6, and 7, reference numeral 1
is a truss installed diagonally between each floor of a building, and the flat part 1a of this truss 1 is provided with a bed frame 2 in the shape of a grid. The frame body 2a is configured to form a cross-shaped structure. Furthermore, although this angle frame 2a is fixed to the flat portion 1a of the truss 1, each corner (four corners) of the bed frame 2 has a stud bolt 2 having a stepped portion 20a.
0 is fixed by welding. Further, a pair of channel frames 2b are provided in parallel on the stepped portion 20a of this stud 20, and a pair of upper and lower vibration isolators 21, 22 and a seat plate 23 are interposed. , and is screwed by a nut 24.

On the other hand, on both sides of the both channel frame bodies 2b,
Each pair of guide ears 2b ₁ and 2b ₂ are provided,
A bed 3 is placed astride the channel frames 2b located on the inside of each of the guide tabs 2b ₁ and 2b ₂ . Also, as shown in Figure 4,
A pair of elongated holes 3a are bored at both ends of the bed 3 where the both channel frames 2b are located, and a mounting member 15 is inserted into each of the elongated holes 3a. , 14 are interposed to fix the channel frame 2b and the bed 3.

It should be noted that the vibration-proof seat plates 13 and 14 are not necessarily necessary for the present invention, and it goes without saying that the channel frame 2b and the bed 3 may be directly fixed to each other by the mounting member 15.

Furthermore, a pair of rising pieces 3b are attached to the other side of the bed 3, and each rising piece 3b
are provided with respective adjustment screws 16. Further, each upright piece 2c attached to the channel frame 2b is connected to the other end of each adjusting screw 16, and when the transmission chain 6 is stretched and relaxed, each adjusting screw 16 , loosen each of the mounting members 15, move the entire bed 3 along the elongated hole 3a, and remove the drive device 4 installed on the bed 3.
The tension of the transmission chain 6 can be adjusted by adjusting the position of the drive wheel 5a.

Therefore, in the present invention, when the transmission chain 6 expands or contracts, the above-mentioned mounting members 15 are loosened and the bed 3 on which the driving device 4 is installed is moved and adjusted by the above-mentioned adjustment screws 16. Step portion 20a of stud bolt 20 provided at each corner of 2
A pair of upper and lower vibration isolators 21 and 22 interposed in the
Even when the transmission chain 16 is adjusted, it remains stationary, so there is no risk of damaging the vibration isolators 21 and 22 during the adjustment operation, and furthermore, the vibration and noise of the drive device 4 consisting of the reducer 5 and the electric motor 18 are reduced. teeth,
The vibration is absorbed by the vibration isolating materials 21 and 22 so that the angle frame 2a and the channel frame 2b do not come into direct contact with each other, and there is no possibility that the vibration will be transmitted to the truss 1 side.

[Effect of idea]

As described above, the present invention fixes the bed frame 2 composed of the angle frame 2a to the flat part 1a of the truss 1, and each bed frame 2 has a stepped part 20a at each corner. A stud bolt 20 is provided, and a pair of upper and lower vibration isolators 2 are attached to each end of a pair of channel frames 2b at the stepped portion 20a of each stud bolt 20.
1 and 22 are interposed and fixed with nuts, and are provided over the bed 3 on each channel frame 2b, and the drive device 4 is installed on this bed 3, so that the angle frame 2a and the channel The frame body 2b is now in indirect contact with each of the vibration isolators 21 and 22, and not only can the vibration-proof transmission chain be easily handled and adjusted, but also each vibration isolator 21 and 22 can be easily handled and adjusted. There is no risk of damage to the device itself, and as a result, there is no risk of damage to the anti-vibration function, which has excellent effects.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a part of an escalator incorporating a conventional vibration isolator, Fig. 2 is an enlarged sectional view indicated by chain circle A in Fig. 1, and Fig. 3 is a side view of a part of an escalator incorporating a conventional vibration isolator. 4 is a plan view of a conventional escalator vibration isolator, FIG. 5 is a partial sectional view of an already proposed escalator vibration isolator, and FIG.
The figure is a side view of the escalator vibration isolator according to the present invention, and FIG. 7 is an enlarged sectional view taken along the chain line CC in FIG. 6. DESCRIPTION OF SYMBOLS 1...Truss, 1a...Flat part, 2...Bed frame, 2a...Angle frame, 2b...Channel frame, 3...Bed, 4...Drive device, 6...
Transmission chain, 15... Mounting member, 16... Adjusting screw, 20... Stud bolt, 21, 22... Vibration isolating material, 23... Seat plate.

Claims (1)

[Scope of utility model registration request] A bed frame composed of an angle frame is fixed to the flat part of the truss, and stud bolts each having a step are provided at each corner of the bed frame, and a pair of studs are attached to the stepped portion of each stud. A pair of upper and lower vibration isolators are interposed between each end of the channel frame forming the channel frame, which is fixed with a nut, and a bed is provided across both channel frames, and the drive device is mounted on the bed. A vibration isolating device for an escalator, characterized in that the above-mentioned both channel frames and the above-mentioned bed are connected by adjustment screws, and when the transmission chain is adjusted, the bed can be adjusted and moved by the adjustment screws. .