JPH05238658A - Emergency stop device for elevator installation - Google Patents

Abstract

PURPOSE:To put an emergency stop device in action without installing a speed governor in a machine room by putting this emergency stop device for elevator installation work in action at the speed specific times higher than the action speed of a motor-driven winch. CONSTITUTION:A speed governor 15A is fixed to the work floor 182 of a car frame 18, and this speed governor 15A is connected to the lifting rod 193 of an emergency stop device 19. The speed governor 15A is pierced with an emergency stop rope 22 provided across the whole length of an elevator shaft so as to put the emergency stop device 19 in action by the speed governor 15A when the fall speed of the car frame 18 becomes 1.4 times higher than the rated speed of a motor-driven winch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the structure of an emergency stop device for elevator installation.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show, for example, JP-A-58-47.
7 shows a conventional emergency stop device for elevator installation shown in Japanese Patent No. 783, etc., in which 1 is an elevator hoistway, and a pit 2 is provided at a lower portion of the hoistway 1 as shown in FIG. A buffer base 3 is laid in the pit 2, and a buffer 4 is installed upright in the center of the buffer base 3. A machine room floor 5 is formed at the top of the hoistway 1, and a through hole 6 is formed in the center of the machine room floor 5.

Reference numeral 7 denotes a pair of guide rails for permanent installation. The guide rails 7 have a substantially T-shaped cross section and are connected in series in the vertical direction.
Is fixed to the shock absorber base 3 at the same time via suspension members 8 and is fixed to both sides of the hoistway 1 via rail brackets 9.

Reference numeral 10 denotes an electric winch installed on the lower back wall of the hoistway 1. A winding drum 100 of the electric winch 10 has a wire rope 11 wound around a through hole 6. Reference numeral 12 denotes a pair of machine bases that are erected on the machine room floor 5, and a pulley device 13 such as a hoisting machine is mounted on top of the pair of machine bases 12 that are erected on bars that sandwich the through hole 6. This pulley device 13 is installed and the pulley device 13 is a drive pulley.
0 and a brake 131 for decelerating the pulley 130, and a well-known warp wheel 14 for diverting the track of the wire rope 11 is rotatably supported on the lower portion of the brake 131.
Reference numeral 15 is a speed governor installed on the floor 5 of the machine room.
An endless rope 17 is stretched between the vehicle 5 and the tension vehicle 16 in the hoistway 1.

Reference numeral 18 denotes an elevator car frame interposed between a pair of guide rails 7, 7. The car frame 18 is a car horizontally installed between a pair of standing columns 180 and lower portions of the pair of standing columns 18. A floor 181, a working floor 182 horizontally installed between the upper parts of the pair of uprights 180, and a car floor 181.
And a handrail 183 erected on the work floor 182, and the work floor 1
The operation floor 182 is connected to the wire rope 11 passing through the pulley 130 of the pulley device 13 and the deflector wheel 14, and the operation button 184 attached to the handrail 183 of 82 and electrically connected to the electric winch 10. It has a function of moving up and down while being guided by the pair of guide rails 7 as the winding drum 100 of the electric winch 10 rotates.

Reference numeral 19 denotes an emergency stop device installed at the lower end of the vertical column 180 of the car frame 18. As shown in FIG. 6, the emergency stop device 19 is formed in a substantially U-shaped plane and installed at the lower end of the vertical column 180. Body 190 which is loosely fitted to the guide rail 7
A work lever 191 which is pivotally supported on the lower end of the upright pillar 180 and is rotatable in the vertical direction; A rotatable roller 192 and a work lever 19
1 A pulling rod 1 which is pivotally attached to 1 and whose tip is fixed to a rope 17.
And 93.

Therefore, in order to perform various operations such as the work for centering the installation of the middle portion of the guide rail 7, the work for installing the equipment in the hoistway 1, the electric wiring work, etc., the car floor 1 of the car frame 18
It is sufficient for a worker boarding 81 or the work floor 182 to operate the operation button 184. Then, as the winding drum 100 of the electric winch 10 rotates, the car frame 18 is moved to the guide rail 7,
While being guided by 7, it moves up and down as appropriate.

When the car frame 18 falls due to the cutting of the wire rope 11 or the like during the above work, the pull-up bar 193 of the safety device 19 connected to the rope 17 is pulled up to rotate the work lever 191 upward. Then, the roller 192 is sandwiched between the main body 190 and the guide rail 7, and the car frame 18 is stopped to ensure safety.

[0009]

The conventional safety device for elevator installation is constructed as described above, and is provided with an electromagnetic brake for stopping the operation of the electric winch 10, a speed governor 15, and a safety device 19 for safety. Had been secured. However, at a construction site where the work environment is poor, even if the electromagnetic brake is activated, the car frame 18 may slip and slide without stopping completely. In particular, the speed governor 15 operates only at a speed about 1.4 times the rated speed of the elevator due to the use of this equipment, and the safety gear 19 also operates only under the same conditions. Further, when the elevator is installed in a state where the machine room is incomplete, the speed governor 15 cannot be installed and safety cannot be ensured.

The present invention has been made in view of the above, and the main emergency stop device can be operated at a speed 1.4 times the operating speed of an electric winch, and a speed governor is not installed in the machine room. Both aim to provide an emergency stop device for elevator installation that can ensure safety.

[0011]

In the present invention, in order to achieve the above-mentioned object, a car frame for installation work which can be moved up and down and is arranged in a hoistway of an elevator, and this car frame has a speed higher than a predetermined speed. It is characterized in that the speed governor is attached to the car frame, and the speed governor is equipped with a speed governor that operates the safety gear device to stop the car frame when moving at a speed.

The speed governor is connected to a work lever or a pulling rod of an emergency stop device.

[0013]

According to the present invention, since the speed governor is attached to the pull-up bar which constitutes the emergency stop device for the car frame, the car frame can be securely held even if the car frame falls over the rated speed. Can be stopped.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on an embodiment shown in FIGS. 1 to 4. In the drawings, 1 is an elevator hoistway,
As shown in FIG. 1, a pit 2 is formed at the bottom of the hoistway 1, and a shock absorber base 3 is laid in the pit 2. The shock absorber 4 is provided at the center of the shock absorber base 3. Is erected. A machine room floor 5 is formed at the top of the hoistway 1, and a through hole 6 is formed in the center of the machine room floor 5.

Reference numeral 7 denotes a pair of guide rails for permanent installation. The guide rails 7 are formed in a T-shape in cross section, and a plurality of them are connected in series in the vertical direction. The lower end portion is fixed to the shock absorber base 3. At the same time, they are fixed to both side walls of the hoistway 1 via rail brackets 9, respectively.

Reference numeral 10 denotes an electric winch installed on the lower back wall of the hoistway 1, and a winding drum 100 of the electric winch 10 has a wire rope 11 wound around the through hole 6. A beam 20 is placed on the floor 5 of the machine room. A pair of pulleys 21 located directly above the through hole 6 are adjacently installed to the beam 20, and a hook 21 is attached to the beam 21. Hook 21A of shock absorber base 3
An emergency stop rope 22 is vertically stretched over the entire length of the hoistway 1.

Reference numeral 18 denotes an elevator car frame interposed between the pair of guide rails 7, 7. The car frame 18 is a horizontally installed bridge between a pair of standing columns 180 and lower portions of the pair of standing columns 18. A work floor 182 horizontally installed between the floor 181 and an upper portion of the pair of uprights 180, a handrail 183 erected on the car floor 181 and the work floor 182, and an electric winch 10 attached to the handrail 183 of the work floor 182. And a work floor 182 is connected to the wire rope 11 via the pulley 21, and the pair of guide rails 7 are connected to the pair of guide rails 7 as the winding drum 100 of the electric winch 10 rotates. It has the function of moving up and down while being guided.

Reference numeral 19 denotes an emergency stop device installed on a vertical column 180 of the car frame 18. As shown in FIG. 2, the emergency stop device 19 is constructed in a substantially U-shape in plan view and is installed at the lower end of the vertical column 180 to guide rails. 7, a work lever 191 pivotally supported on the lower end of the upright pillar 180, which is rotatable in the up-and-down direction, and a guide rail 7 and the body 190 pivotally supported on the tip of the work lever 191. A rotatable roller 192 that is tightly fitted between the two, and a pulling rod 193 that is pivotally attached to the work lever 191 and has a tip end fixed to the rope 17.
It is composed of a steady rest 194 that is attached to the upright pillar 180 and guides the pulling rod 193 in the vertical direction.

Reference numeral 15A is a speed governor (safety device) according to the present invention.
Then, this box-shaped governor 15A is, as shown in FIGS.
Equipped with a protruding release lock switch 150, the car frame 18
It is fixed to the work floor 182 of the above and vertically penetrates the emergency stop rope 22, and is attached to the upper part of the pulling rod 193 via the mounting seat 151 and the fastener 152.

Therefore, in order to perform various operations such as centering work for mounting the middle portion of the guide rail 7, work for mounting equipment in the hoistway 1, electric wiring work, etc., the car floor 1 of the car frame 18
It is sufficient for a worker boarding 81 or the work floor 182 to operate the operation button 184. Then, as the winding drum 100 of the electric winch 10 rotates, the car frame 18 is moved to the guide rail 7,
While being guided by 7, it moves up and down as appropriate.

During the above work, the wire rope 11 is cut and the car frame 18 is dropped, or the car winch 10 has a failure rate of 1.4 times or more than the operating speed of the electric winch 10. Then, the speed governor 15A grips the emergency stop rope 22, and while being guided by the steady rest 194, the pull-up bar 193 is pulled upward in the direction of the arrow in FIG. 3 to rotate the work lever 191 upward, 192 bites into the main body 190 and the guide rail 7 and is held between them, and the car frame 18 stops to ensure safety.

In the above embodiment, the speed governor 15A is attached to the pull-up bar 193, but in the case of a slack rope type emergency stop device without the pull-up bar 193, the work lever 191 is adjusted. The speed reducer 15A may be installed, or even if the speed governor 15A is installed on the work floor 182 of the car frame 18, the same effect as that of the above-described embodiment is obtained.

[0023]

As described above, according to the present invention, since the governor is mounted on the car frame, the safety gear device can be operated at a speed corresponding to the operating speed of the electric winch without depending on the electromagnetic brake. Therefore, there is an effect that a governor can be installed and safety can be secured when the elevator is installed in a state where the machine room is incomplete. Further, in the case of an elevator that does not have a speed governor, there is an effect that it is possible to ensure safety during installation.

Further, since the governor is installed on the work lever or the pulling rod of the safety gear device, there is an effect that the car frame can be stopped even if the rated speed is exceeded.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a hoistway showing an embodiment of an emergency stop device for elevator installation according to the present invention.

2 is an enlarged side view showing the car frame of FIG. 1. FIG.

FIG. 3 is an explanatory diagram showing a state in which the governor of FIG. 2 operates.

FIG. 4 is an enlarged perspective view showing the speed governor of FIG.

FIG. 5 is a schematic view showing a conventional emergency stop device for elevator installation.

FIG. 6 is an enlarged view showing a conventional emergency stop device.

[Explanation of symbols]

 1 Hoistway 7 Guide rail 11 Wire rope 15, 15A Governor 18 Car frame 19 Emergency stop device 180 Stand pillar 182 Work floor 191 Work lever 192 Roller 193 Pull bar

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[Procedure amendment]

[Submission date] October 9, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Emergency stop device for elevator installation

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the structure of an emergency stop device for elevator installation.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show, for example, JP-A-58-47.
7 shows a conventional emergency stop device for elevator installation shown in Japanese Patent No. 783, etc., in which 1 is an elevator hoistway, and a pit 2 is provided at a lower portion of the hoistway 1 as shown in FIG. A buffer base 3 is laid in the pit 2, and a buffer 4 is installed upright in the center of the buffer base 3. A machine room floor 5 is formed at the top of the hoistway 1, and a through hole 6 is formed in the center of the machine room floor 5.

Reference numeral 7 denotes a pair of guide rails for permanent installation. The guide rails 7 have a substantially T-shaped cross section and are connected in series in the vertical direction.
Is fixed to the shock absorber base 3 at the same time via suspension members 8 and is fixed to both sides of the hoistway 1 via rail brackets 9.

Reference numeral 10 denotes an electric winch installed on the lower back wall of the hoistway 1. A winding drum 100 of the electric winch 10 has a wire rope 11 wound around a through hole 6. Reference numeral 12 denotes a pair of machine bases that are erected on the machine room floor 5, and a pulley device 13 such as a hoisting machine is mounted on top of the pair of machine bases 12 that are erected on bars that sandwich the through hole 6. This pulley device 13 is installed and the pulley device 13 is a drive pulley.
0 and a brake 131 for decelerating the pulley 130, and a well-known warp wheel 14 for diverting the track of the wire rope 11 is rotatably supported on the lower portion of the brake 131.
Reference numeral 15 is a speed governor installed on the floor 5 of the machine room.
An endless rope 17 is stretched between the vehicle 5 and the tension vehicle 16 in the hoistway 1.

Reference numeral 18 denotes an elevator car frame interposed between a pair of guide rails 7, 7. The car frame 18 is a car horizontally installed between a pair of standing columns 180 and lower portions of the pair of standing columns 18. A floor 181, a working floor 182 horizontally installed between the upper parts of the pair of uprights 180, and a car floor 181.
And a handrail 183 erected on the work floor 182, and the work floor 1
The operation floor 182 is connected to the wire rope 11 passing through the pulley 130 of the pulley device 13 and the deflector wheel 14, and the operation button 184 attached to the handrail 183 of 82 and electrically connected to the electric winch 10. It has a function of moving up and down while being guided by the pair of guide rails 7 as the winding drum 100 of the electric winch 10 rotates.

Reference numeral 19 denotes an emergency stop device installed at the lower end of the vertical column 180 of the car frame 18. As shown in FIG. 6, the emergency stop device 19 is formed in a substantially U-shaped plane and installed at the lower end of the vertical column 180. Body 190 which is loosely fitted to the guide rail 7
When a lower end rotatably axially supported by a vertically operating lever 191 of the pillar 180 tightly between the guide rails 7 and the body 190 in an emergency is supported by a tip end portion of the operating lever 1 91 of this a roller 192 freely fitted to the rotating actuation lever 19
1 A pulling rod 1 which is pivotally attached to 1 and whose tip is fixed to a rope 17.
And 93.

Therefore, in order to perform various operations such as the work for centering the installation of the middle portion of the guide rail 7, the work for installing the equipment in the hoistway 1, the electric wiring work, etc., the car floor 1 of the car frame 18
It is sufficient for a worker boarding 81 or the work floor 182 to operate the operation button 184. Then, as the winding drum 100 of the electric winch 10 rotates, the car frame 18 is moved to the guide rail 7,
While being guided by 7, it moves up and down as appropriate.

When the car frame 18 falls due to the cutting of the wire rope 11 or the like during the above work, the pulling rod 193 of the safety device 19 connected to the rope 17 is pulled up.
The actuating lever 191 is rotated upward Te, roller 192 is clamped to the body 190 and the guide rail 7, the safety is ensured car frame 18 is stopped.

[0009]

The conventional safety device for elevator installation is constructed as described above, and is provided with an electromagnetic brake for stopping the operation of the electric winch 10, a speed governor 15, and a safety device 19 for safety. Had been secured. However, at a construction site where the work environment is poor, even if the electromagnetic brake is activated, the car frame 18 may slip and slide without stopping completely. In particular, the speed governor 15 operates only at a speed about 1.4 times the rated speed of the elevator due to the use of this equipment, and the safety gear 19 also operates only under the same conditions. Further, when the elevator is installed in a state where the machine room is incomplete, the speed governor 15 cannot be installed and safety cannot be ensured.

The present invention has been made in view of the above, and the main emergency stop device can be operated at a speed 1.4 times the operating speed of an electric winch, and a speed governor is not installed in the machine room. Both aim to provide an emergency stop device for elevator installation that can ensure safety.

[0011]

In the present invention, in order to achieve the above-mentioned object, a car frame for installation work which can be moved up and down and is arranged in a hoistway of an elevator, and this car frame has a speed higher than a predetermined speed. It is characterized in that the speed governor is attached to the car frame, and the speed governor is equipped with a speed governor that operates the safety gear device to stop the car frame when moving at a speed.

Further, the speed governor is characterized in that it is connected to an operating lever or a pulling rod of an emergency stop device.

[0013]

According to the present invention, since the speed governor is attached to the pull-up bar which constitutes the emergency stop device for the car frame, the car frame can be securely held even if the car frame falls over the rated speed. Can be stopped.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on an embodiment shown in FIGS. 1 to 4. In the drawings, 1 is an elevator hoistway,
As shown in FIG. 1, a pit 2 is formed at the bottom of the hoistway 1, and a shock absorber base 3 is laid in the pit 2. The shock absorber 4 is provided at the center of the shock absorber base 3. Is erected. A machine room floor 5 is formed at the top of the hoistway 1, and a through hole 6 is formed in the center of the machine room floor 5.

Reference numeral 7 denotes a pair of guide rails for permanent installation. The guide rails 7 are formed in a T-shape in cross section, and a plurality of them are connected in series in the vertical direction. The lower end portion is fixed to the shock absorber base 3. At the same time, they are fixed to both side walls of the hoistway 1 via rail brackets 9, respectively.

Reference numeral 10 denotes an electric winch installed on the lower back wall of the hoistway 1, and a winding drum 100 of the electric winch 10 has a wire rope 11 wound around the through hole 6. A beam 20 is placed on the floor 5 of the machine room. A pair of pulleys 21 located directly above the through hole 6 are adjacently installed to the beam 20, and a hook 21 is attached to the beam 21. Hook 21A of shock absorber base 3
An emergency stop rope 22 is vertically stretched over the entire length of the hoistway 1.

Reference numeral 18 denotes an elevator car frame interposed between the pair of guide rails 7, 7. The car frame 18 is a horizontally installed bridge between a pair of standing columns 180 and lower portions of the pair of standing columns 18. A work floor 182 horizontally installed between the floor 181 and an upper portion of the pair of uprights 180, a handrail 183 erected on the car floor 181 and the work floor 182, and an electric winch 10 attached to the handrail 183 of the work floor 182. And a work floor 182 is connected to the wire rope 11 via the pulley 21, and the pair of guide rails 7 are connected to the pair of guide rails 7 as the winding drum 100 of the electric winch 10 rotates. It has the function of moving up and down while being guided.

Reference numeral 19 denotes an emergency stop device installed on a vertical column 180 of the car frame 18. As shown in FIG. 2, the emergency stop device 19 is constructed in a substantially U-shape in plan view and is installed at the lower end of the vertical column 180 to guide rails. 7, a body 190 that is loosely fitted to the stand 7, and an operation that is pivotally supported by the lower end of the upright pillar 180 and that is vertically rotatable.
The lever 191, the roller 192 of the rotatable to be closely fitted between this operating guide rail 7 in an emergency is supported by a tip end portion of the lever 191 and the body 190, it is pivotally connected to the actuating lever 191 distal A pulling bar 193 whose part is fixed to the rope 17,
It is composed of a steady rest 194 that is attached to the upright pillar 180 and guides the pulling rod 193 in the vertical direction.

Reference numeral 15A is a speed governor (safety device) according to the present invention.
Then, this box-shaped governor 15A is, as shown in FIGS.
Equipped with a protruding release lock switch 150, the car frame 18
It is fixed to the work floor 182 of the above and vertically penetrates the emergency stop rope 22, and is attached to the upper part of the pulling rod 193 via the mounting seat 151 and the fastener 152.

Therefore, in order to perform various operations such as centering work for mounting the middle portion of the guide rail 7, work for mounting equipment in the hoistway 1, electric wiring work, etc., the car floor 1 of the car frame 18
It is sufficient for a worker boarding 81 or the work floor 182 to operate the operation button 184. Then, as the winding drum 100 of the electric winch 10 rotates, the car frame 18 is moved to the guide rail 7,
While being guided by 7, it moves up and down appropriately.

During the above work, the wire rope 11 is cut and the car frame 18 is dropped, or the car winch 10 has a failure rate of 1.4 times or more than the operating speed of the electric winch 10. Then, the speed governor 15A grips the emergency stop rope 22, and the pulling rod 193 is pulled up in the arrow upward direction of FIG. 3 while being guided by the steady rest 194.
The actuating lever 191 is rotated upward Te, roller 192 is sandwiched bite into the body 190 and the guide rail 7, the car frame 18 to secure the safety stop.

In the above embodiment, the speed governor 15A is attached to the pulling rod 193. However, in the case of a slack rope type emergency stop device without the pulling rod 193 , the operating lever is The speed governor 15A may be attached to the bar 191 or the speed governor 15A may be attached to the work floor 182 of the car frame 18 to obtain the same effect as the above embodiment.

[0023]

As described above, according to the present invention, since the governor is mounted on the car frame, the safety gear device can be operated at a speed corresponding to the operating speed of the electric winch without depending on the electromagnetic brake. Therefore, there is an effect that a governor can be installed and safety can be secured when the elevator is installed in a state where the machine room is incomplete. Further, in the case of an elevator that does not have a speed governor, there is an effect that it is possible to ensure safety during installation.

[0024] Also, since installing the emergency stop devices operating lever or pulling rod to the governor of, there is an effect that it is possible to stop the car frame even beyond the rated speed.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a hoistway showing an embodiment of an emergency stop device for elevator installation according to the present invention.

2 is an enlarged side view showing the car frame of FIG. 1. FIG.

FIG. 3 is an explanatory diagram showing a state in which the governor of FIG. 2 operates.

FIG. 4 is an enlarged perspective view showing the speed governor of FIG. 2.

FIG. 5 is a schematic view showing a conventional emergency stop device for elevator installation.

FIG. 6 is an enlarged view showing a conventional emergency stop device.

[Reference Numerals] 1 hoistway 7 guide rail 11 wire rope 15,15A governor 18 car frame 19 emergency stop device 180 pillar 182 working floor 191 operation lever 192 roller 193 pulling rod

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Natsume 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Sanryo Electric Co., Ltd.

Claims (2)

[Claims] 1. A car frame for installation work, which is arranged in an elevator hoistway and is capable of ascending and descending, and an emergency stop device is operated when the car frame moves at a speed higher than a predetermined speed, and the car frame is operated. An emergency stop device for elevator installation, comprising a speed governor for stopping an elevator, wherein the speed governor is mounted on the car frame. 2. The elevator stop emergency stop device according to claim 1, wherein the speed governor is connected to a work lever or a pulling rod of the emergency stop device.