JPH09165168A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely lock a horizontally movable elevator cab to an elevator platform such as a car frame, an elevator hall, or a horizontally movable carrier. SOLUTION: The cab lock 25 of an elevator comprises a lug 32 on a horizontally movable elevator cab which receives a bolt 35 pushed into the lug by a spring 45 and retracted by a solenoid 37 arranged on the car frame of the elevator. Switches 41, 42 follow the bolt position, and the lock can be utilized on car frames, elevator halls and carriers of various forms.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method and apparatus for securely locking an elevator cab (elevator cab) to an elevator platform such as a car frame, landing, or carrier.

[0002]

2. Description of the Prior Art The actual weight of rope in a conventional elevator lift system limits the actual travel length of the lift system. To reach parts of the skyscraper that exceed this limit, it has been customary in the past to transport passengers up and down to the sky lobby, where they walked to another elevator, which carried them upstairs to the building. Met. However, if the lifted passengers fall apart, it generally causes confusion, and the stable vertical flow of the lifted passengers in the building is impaired.

All elevating passengers going to the upper floor of the building must move up through the lower floor of the building. Therefore, as the building rises, so does the number of lifts that must pass through the lower floors, and more space in the building needs to be devoted to elevator hoistways (referred to herein as the "core").
In order to reduce the number of cores needed to move the appropriate lifts to the upper floors of the building, it is necessary to increase the effective utilization of each elevator hoistway. For example, the known second-floor car reduces the number of hoistways required by almost half by doubling the number of passengers who can move when the transportation volume is at a peak. Proposals to provide multiple cabs for hoistway movement include a double slang system that allows higher cabs to travel twice as much distance as lower cabs due to roping ratios, and linear induction motors (LI) on side walls of hoistways.
It also includes elevators that require roping when activated by M). However, the double slang system is not efficient for effectively transporting passengers to the sky lobbies of extremely tall buildings, and the LIM is still not practical because the motor parts and power consumption are extremely large because there is no counterweight. .

To reach longer distances, as described in commonly-owned and co-pending US application 8 / 564,754, filed concurrently with the present US basic application. , The elevator cab must travel in the first hoistway from the first floor to the transfer floor, horizontally to the second elevator car in the second hoistway, and then to the upper floors of the building You can In contrast to high-speed express elevators, it takes a considerable amount of time for passengers to get on and off, so another way to increase the usefulness of the hoistway is by the applicant of the present application, which was filed at the same time as the basic application of the present application. A method of moving an elevator cab out of the hoistway for entry and exit is described in co-pending US patent application Ser. No. 8 / 565,606.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to
Elevator cabs that can move horizontally
Or to lock securely to an elevator platform such as a horizontally movable carrier. Another object is to provide a locking device that reliably locks the cab against relative vertical movement when the cab is on the elevator platform.

[0006]

According to the invention, a cab lock having a strike having a through hole and a lock bolt operable to move into the strike is horizontally movable. An elevator cab,
It extends between an elevator platform such as a car frame. Further in accordance with the present invention, the strike has a horizontal hole and the locking bolt is horizontally movable within the hole to provide a firm lock to prevent relative vertical movement of the cab when the cab is on the car frame. To do. Further in accordance with the invention, lock bolts can be disposed on the platform and strikes can be disposed on the cab,
Alternatively, the strike can be mounted on the platform and the lock bolt can be mounted on the cab. According to the invention, the lock can extend between the bottom of the cab and the platform, or it can extend between the top of the cab and the platform.

Further in accordance with the present invention, a cab / car locking device for positively locking a horizontally movable elevator cab to an elevator platform is provided by a spring within the strike so that it stays in the locked position even if power is lost. It also includes an extending bolt and also uses a solenoid to unlock the cab from the car by pulling the bolt out of the strike against the spring action.

The platform may be a building landing or a cab carrier as well as a car frame.

Other objects, features and advantages of the present invention will become more apparent by the following detailed description of embodiments with reference to the accompanying drawings.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, an elevator car frame 10 includes a thick plate 11, a crosshead 12 for supporting a roping 13, and vertical bars 14, 15 on both sides of the frame.
And a car platform 16. The horizontally movable cab 17 has a door 18 and wheels or rollers 19 so that it can move. As shown in FIG. 3, the car frame 10 may have braces 20, 21 for stabilization between the car platform 16 and the vertical rails 14 (and vertical rails 15 not shown). The braces 20 and 21 are omitted in FIG. 1 for simplicity. FIG. 1 shows a pair of cab locks 25, 26 in an operating position that locks the cab 17 into the car.

Referring to FIG. 2, each lock 25 is
It has been shown to work with strikes, such as lugs 32 fixed to the horizontally movable elevator cab 17. Each lug 32 has a hole 33 therein for receiving a lock bolt 35.
Forming a strike. Hole 33 and lock bolt 3
The working end 36 of 5 is tapered so that the bolt 3 can be engaged regardless of slight vibration when positioning the cab 17 on the car frame 10.
It is possible for 5 to fit easily into hole 33 and to fit tightly.

The other end 37 of the bolt 35 can also be tapered to function as a cam for actuating a pair of spring biased cam actuation switches 41,42. FIG.
In one embodiment, bolt 35 is permanently magnetized, for example, by making end 37 north pole and end 36 south pole (or vice versa). The solenoid 43 can be in one direction the current flow that drives the bolt to the locked position (as shown in FIGS. 1 and 2), and it can also be the reverse current that retracts the bolt (to the left in FIG. 2). Can be made to flow to a completely unlocked position. In this position, the end 36 resists the spring force of the compression spring 45 acting between the bolt 35 arranged on the car platform 16 and the flange 46 on the lug 47.
It is completely out of 2. The solenoid 43 is secured to the car platform 16 by a suitable bracket 44. In the preferred embodiment of the invention, the car platform 1 has a tapered hole 49.
It also includes a lug 48 fixed to 6 forming a second strike.

FIG. 3 is a quasi-sectional view taken along the surface of the near wall (not shown) of the landing 70. A pair of locks are rigidly fixed to this wall, of which only the lock 25a is shown, which is a lock 25 on the platform 16 of the car, so that the cab can be locked on the landing.
It is in a position similar to position 26. The lock may be the same as that used on the platform 16 of the car. As shown in FIG. 3, the locks 25 and 26 are the vertical bars 14.
It can be placed on the platform 16 between the and the vertical bar 15 (not shown in FIG. 3). Meanwhile, lock 25
And 26 may be arranged at a position other than between the vertical bars, for example, as shown in FIG. 1, the lock 25 may be placed on the left front side of the car frame 10 and the lock 26 may be placed on the right rear side of the car frame 10. Alternatively, as shown in FIG. 4, lock 25 (and 26)
May be mounted centrally in front of and behind platform 16. Alternatively, other combinations may be used, and preferably at least two locks are included in each car to stabilize the car position.

In FIG. 5, bridge switching circuit 50 allows current in either of two directions to be supplied to solenoid 37 and solenoid 51 of another cab lock, such as cab lock 26. When a "cage / cab lock set" signal is provided on line 52, a pair of switches 53, 54 is activated to switch switch 53, coils 37, 51 and switch 54 from a positive current source 55. After that, it is conducted again to the negative voltage source 56.
On the other hand, "Cage / Cab lock reset" on line 60
In response to the signal, the latch 61 is set and its output actuates a pair of switches 62, 63, causing current to flow in the opposite direction through the switch 62, coils 43, 51, and again through the switch 63 to a negative voltage. Flowing to the source. Latch 61
Holds the coil against the spring 45 in the reset or unlocked position (left in FIGS. 1 and 2) until it is reset by the signal on line 52. Once the lock is locked, it is held in the locked position by the spring 45 in the illustrated embodiment. Switches 53, 54, 6
2, 63 may be field effect transistor switches, or switches of any suitable type.

As shown in FIG. 6, each line 66, 6
For safety and control purposes, the cam actuation switch 4 is provided by providing a "car / cab lock set" signal and a "car / cab lock reset" signal on 7.
1, 42 (FIG. 2) can be used. In this figure, the normally closed contact 41a is fully locked only when the lock is fully locked as shown in FIG. Similarly, the normally closed contact 68a of another cab lock, such as the cab lock 26, will only work if its bolts are well to the right of the switch 42 (FIG. 1) and therefore will not fire. Normally open contact 42b closes only when the bolts are sufficiently far to the left, as shown by dotted line 37a in FIG. 2, to activate switch 42 as shown by dotted line 42a in FIG. Normally open contact 69b (of cab lock 26)
Will only close if the bolt 35 is fully retracted (to the right in FIG. 1) and thus its end 36 is completely disengaged from the lug 32, thereby causing the bolt 35 (or cab
It is possible to move horizontally without interference from the bolts of the lock 26). 5 and 6 show a circuit for use with two cab locks (as shown in FIG. 1). If more cab locks are used, then more coils in parallel with FIG. 5 and in series with those of FIG. 6 would be used.

In another embodiment of the present invention, the lug 32 is arranged on the canopy 73 of the cab 17, and the lock 25b,
Another embodiment, which is fixed to the car frame by the bracket 74, is shown in FIG.

The embodiment described so far is the solenoid 3
7 and lugs 47, 48 and cage platform 16
A landing 7 where the rug 32 is arranged on the cab 34
It is arranged on a platform consisting of zero.
On the other hand, the lug 32 may be arranged on the car frame 10 or the wall of the landing 70, and the solenoid 37 may be arranged on the cab 17. In FIG. 8, the lock 25c includes a lug 32a arranged on the vertical rail 14 and a solenoid 37 fixed to the canopy of the cab 17. However, each of the cab locks is associated with a cab 17 that requires special handling of electrical signals as they are transmitted from one car frame to another car frame or from the car frame to the landing. If not associated with the car frame,
It is easier to maintain electrical continuity with the lock solenoid (eg solenoid 37) and the switch (eg switches 41, 42). The adaptation of the electrical conduction state in such a case is described in pending US application 8 / 565,647, which is filed at the same time as the US basic application of the present application and which is owned by the same application as the present invention. There is.

Switches similar to switches 41 and 42, respectively, may be provided in the embodiment of FIGS. 7 and 8 as described above. For simplicity, only one lock is shown in FIGS. 4, 7 and 8, although two or more locks may be used. Proximity sensors or other types of position detectors may be used in place of the cam actuated switches 41, 42 in all of the embodiments described above. The strikes disposed on the surface may consist of holes formed in the lugs fixed to the surface or may consist of holes formed in the surface.

All of the above mentioned patent applications are incorporated herein by reference.

Thus, while the present invention has been shown and described with respect to its embodiments, it is possible to make various changes, omissions or additions to the foregoing and without departing from the spirit and scope of the present invention. Those of ordinary skill in the art will appreciate.

[0021]

Elevator cab with horizontally movable cab lock having a strike having a through hole and a lock bolt operable to move into the strike, and an elevator platform such as a car frame. Elevator that can move horizontally by extending between
The cab can be securely locked to the elevator platform.

[Brief description of the drawings]

1 is a simplified front view of an elevator cab horizontally movable in a car frame having a cab lock according to the present invention. FIG.

FIG. 2 is a partial, simplified side view of a partial cross section of a cab lock according to the present invention.

3 is a stylized simplified side view of the elevator frame of FIG. 1 with the cab moved from the elevator frame to the landing, with the cab lock according to the invention.

FIG. 4 is a simplified front view of an elevator car frame with a cab lock located in the center of the cab.

FIG. 5 is a circuit diagram for energizing a bipolar solenoid that can be used in the present invention.

FIG. 6 is a circuit diagram of a switch incorporated into the present invention for safety and control purposes.

FIG. 7: A cab that interacts with the lugs on top of the cab
FIG. 3 is a simplified front view of a portion of an elevator cab that has a lock and is horizontally movable within a car frame.

FIG. 8 is a simplified front view of an elevator cab horizontally movable in a car frame having a lug and a cab lock arranged on the upper part of the cab.

[Explanation of symbols]

 10 ... Basket frame 11 ... Thick wall 13 ... Roping 14 ... Vertical bar 15 ... Vertical bar 16 ... Platform 17 ... Cab 18 ... Door 19 ... Roller 20 ... Brace 21 ... Brace 25 ... Cab lock 26 ... Cab lock 32 ... Lug 33 ... Hole 35 ... Bolt 36 ... Operating end 37 ... Other end 41 ... Switch 42 ... Switch 43 ... Solenoid 44 ... Bracket 45 ... Spring 46 ... Flange 48 ... Lug 50 ... Bridge switching circuit 51 ... Coil 52 ... Wire 53 ... Switch 54 ... Switch 55 ... Positive voltage source 56 ... Negative voltage source 60 ... Line 62 ... Switch 63 ... Switch

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Paul Bennett United States, Connecticut, Waterbury, Farmington Avenue 501 (72) Inventor Anthony Cooney United States, Connecticut, Unionville, Coppermine Road 211 (72) Inventor Richard Charles McCarthy United States, Connecticut, Simsbury, Alder Road 28 (72) Inventor Joseph Bitter United States, Connecticut, Avon, Longview Road 31 (72) Inventor Frederick H. Barker United States, Connecticut, Bristol, Brewster Road 288 (72) Inventor Bruce A. Powell USA, Connecticut, Canton, Morgan Road 71

Claims (16)

[Claims] 1. In an elevator, an elevator car frame, a horizontally movable elevator cab, and a cab lock that extends between the car frame and the cab and is operable to lock the cab to the frame. The cab lock has a strike having a through hole,
And a lock bolt operable to extend into the strike to lock the cab to the car frame. 2. The elevator according to claim 1, wherein the strike has a through hole that is substantially horizontal, and the bolt is horizontally operable to pass through the strike. 3. The elevator according to claim 1, wherein the strike is arranged on the cab, and the bolt is arranged on the car frame. 4. A second strike having a substantially horizontal through hole and disposed on the car frame, wherein the bolt penetrates the first strike and is located in the second strike. An elevator according to claim 3, wherein the elevator is operable to enter. 5. The elevator according to claim 1, wherein the strike is arranged on the car frame and the bolt is arranged on the cab. 6. A landing of a building and a direction of the landing,
It is also horizontally moveable between an elevator car frame that can move vertically up and down the hoistway and the surface of the cab is either the car frame or the surface of an elevator platform that is either the landing. A cab lock that securely locks to a cab having a first portion of the cab lock disposed on a surface of the cab, having a plurality of second portions of the cab lock, wherein the cab is One of the second portions is disposed on the car frame so as to interact with the first portion on the cab when located on the surface of the car frame, the cab being on the surface of the landing. If located at the first of the first on the cab
One of the second portions is disposed at the landing for interacting with a portion, one of the portions having a strike disposed in an associated one of the surfaces and having a through hole; The other of the parts has a locking bolt disposed on a corresponding one of said surfaces with selectively operable means for locking said cab to said car frame or said landing. To move the lock bolt into the hole, or to allow the cab to move horizontally with respect to one or both of the car frame and / or landing, so that the bolt does not hit any strike. A cab lock that is selectively operated to move. 7. The strike has a horizontal hole and the selectively operable means is configured to lock the cab to the car frame or landing.
7. The cab lock according to claim 6, wherein the bolt is moved horizontally into the hole. 8. The selectively operable means includes a spring for moving the locking bolt into a hole to lock the cab to the car frame or landing. The cab lock according to claim 6. 9. The cab lock of claim 6 wherein one of said portions has a strike formed in a lug extending outwardly from an associated one of said surfaces. 10. The first portion of the cab lock comprises a lock bolt.
Cab lock described in. 11. The second portion of the cab lock comprises a lock bolt.
Cab lock described in. 12. A cab lock for rigidly locking the surface of a horizontally moveable elevator cab to the surface of a vertically moveable car frame, wherein a substantially horizontal hole is provided on one of said surfaces. A lock bolt disposed on the other of the surfaces and moving substantially horizontally within the hole and out of the hole, and the bolt for locking the cab to the car frame. Selectively operable means for moving into the hole and for moving the bolt so as not to hit the strike so that the cab can move horizontally with respect to the car frame. Cab lock that is characterized. 13. The selectively operable means includes a spring for moving the lock bolt into a hole to lock the cab to the car frame or landing, and the cab to the car. 13. A solenoid for pulling the lock bolt out of the hole against the spring to unlock it from the frame.
Cab lock described in. 14. The cab lock of claim 12 wherein the strike is formed by a lug extending outwardly from one of the surfaces. 15. The cab lock according to claim 12, wherein the strike is provided on a surface of the cab and the bolt is provided on a surface of the car frame. 16. The cab lock according to claim 12, wherein the strike is provided on the car frame and the bolt is provided on a surface of the cab.