Elevator

By supporting the second engaging component by both the upper frame and the longitudinal frame in the elevator stop mechanism, the problem of deformation of the upper frame of the car is solved, and the counterweight tension load is achieved without increasing the height of the car, meeting the demand for building to reduce the elevated size.

CN120379918APending Publication Date: 2025-07-25HITACHI LTD
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Patent Information

Application Number
CN202380083123.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-01-18
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

In the prior art, when the car is fixed to the guide rail by a stop mechanism, the tensile load generated by the counterweight is concentratedly applied to the upper frame of the car, resulting in the upper frame being deformed, and the height dimension of the car frame needs to be increased to bear the load, which violates the requirements of the building owner's desire to reduce the elevated size.

Method used

An elevator structure is adopted, wherein the second engaging member of the stop mechanism is supported by both the upper frame and the longitudinal frame of the car. By engaging the first engaging member and the second engaging member, the car is fixed to the guide rail, and the tension load is distributed to the upper frame and the longitudinal frame.

Benefits of technology

Even if the vertical section size of the upper frame of the car is not increased, it can withstand the tensile load generated by the counterweight, reduce the height of the car frame and the elevated size of the lifting channel, achieving a smaller structural design compared with the prior art.

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Abstract

An elevator is provided with: a car having an upper frame and a vertical frame; a guide rail that guides the movement of the car; and a stopper mechanism that fixes the car to the guide rail by engaging a first engagement member provided to the guide rail with a second engagement member provided to the car. The second engagement member is supported by both the upper frame and the vertical frame.
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Description

Technical Field

[0001] The present invention relates to an elevator. Background Art

[0002] In recent years, in a machine-roomless elevator, there has been an increasing requirement to install a traction machine in the upper part of a hoistway so that the traction machine is not flooded by abnormal weather such as heavy rain. On the other hand, when performing maintenance and inspection work on the traction machine installed in the upper part of the hoistway, an operator enters above the car from the landing on the top floor of a building and uses the ceiling of the car as a work floor. In this case, a technique is known in which a car is fixed to a guide rail by a stopper mechanism so that the car is not pulled up by a counterweight even if a brake that restricts the movement of a main suspension rope is released (for example, see Patent Document 1).

[0003] The stopper mechanism includes an engaged member fixed to the guide rail and an engaging member provided on the car. When performing maintenance and inspection work on the traction machine, the operator can fix the car to the guide rail by engaging the engaging member with the engaged member.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2000-203774 Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] When a car is fixed to a guide rail by a stopper mechanism and the brake is released, a tensile load generated by a counterweight is applied to the car. In the technique described in Patent Document 1, the engaging member of the stopper mechanism is configured to be supported only by the upper frame of the car. Therefore, the tensile load generated by the counterweight is concentrated on the upper frame of the car, and thus the upper frame may be deformed. Therefore, in a car of an elevator having a stopper mechanism, it is necessary to ensure a relatively large longitudinal sectional dimension of the upper frame so as to withstand the tensile load generated by the counterweight.

[0009] However, if the longitudinal sectional dimension of the upper frame is ensured to be relatively large, the height dimension of the car frame becomes correspondingly large. In addition, when the height dimension of the car frame becomes large, it is correspondingly necessary to ensure a relatively large elevated dimension of the hoistway. The elevated dimension is the dimension from the ground level of the top floor landing to the ceiling of the hoistway. The building owner (construction client) has a requirement to reduce the elevated dimension, and in order to meet this requirement, it is necessary to suppress the height dimension of the car frame to be small.

[0010] An object of the present invention is to provide an elevator that can withstand a tensile load generated by a counterweight without increasing the longitudinal sectional dimension of the upper frame of the car when the car is fixed to a guide rail by a stopper mechanism.

[0011] Solution to the problem

[0012] To solve the above problems, for example, the structure described in the claims is adopted.

[0013] This application includes multiple solutions to the above problems. If one of them is cited, it is an elevator, which includes: a car having an upper frame and vertical frames; a guide rail for guiding the movement of the car; and a stopping mechanism having a first engaging member provided on the guide rail and a second engaging member provided on the car, and the car is fixed to the guide rail by engaging the first engaging member with the second engaging member, and the second engaging member is supported by both the upper frame and the vertical frames.

[0014] Advantages of the invention

[0015] According to the present invention, when the car is fixed to the guide rail by the stopping mechanism, even if the longitudinal sectional dimension of the upper frame of the car is not increased, the tensile load generated by the counterweight can be borne.

[0016] Problems, structures, and effects other than the above are clarified by the following description of the embodiments. Description of the drawings

[0017] Figure 1 It is a schematic diagram showing the structure of the elevator according to the embodiment.

[0018] Figure 2 It is a perspective view showing the structure of the car included in the elevator according to the embodiment.

[0019] Figure 3 It is a view showing the structure of the stopping mechanism included in the elevator according to the embodiment.

[0020] Figure 4 It is a perspective view showing the arrangement state of the stopping pin operation part.

[0021] Figure 5 It is a perspective view showing the support structure of the stopping pin.

[0022] Figure 6 It is a top view showing the support structure of the stopping pin.

[0023] Figure 7 It is a front view showing the support structure of the stopping pin.

[0024] Figure 8 It is a left side view showing the support structure of the stopping pin.

[0025] Figure 9 It is a right side view showing the support structure of the stopping pin. Detailed description of the embodiments

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and the drawings, elements having substantially the same function or structure are denoted by the same reference numerals, and repeated descriptions are omitted.

[0027] <Structure of Elevator>

[0028] Figure 1 is a schematic diagram showing the structure of an elevator according to an embodiment.

[0029] As Figure 1 shown, the elevator 10 is a so-called machine-roomless elevator that does not require a machine room to be installed on the roof of a building or the like. The elevator 10 includes a car 11, a traction machine 12, a main suspension rope 13, a counterweight 14, and a compensating chain 15.

[0030] The car 11 is guided by a guide rail (not shown) and moves in the up and down direction in the hoistway 16 (hereinafter also referred to as "lifting"). When a car call button (not shown) provided at each landing 17 is pressed, or when a destination floor button provided in the car compartment of the car 11 is pressed, the car 11 moves to the landing 17 of the floor designated by the button operation and stops.

[0031] The traction machine 12 is a device that winds the main suspension rope 13 to lift and lower the car 11. The traction machine 12 includes a rope sheave 12a and a drive source (not shown) that rotates the rope sheave 12a. The traction machine 12 is provided at the upper part of the hoistway 16. More specifically, the traction machine 12 is provided near the top of the hoistway 16.

[0032] The main suspension rope 13 is wound around a counterweight sheave 18 provided at the upper end of the counterweight 14, the rope sheave 12a of the traction machine 12, and two lower car sheaves 19 provided at the lower part of the car 11. In addition, both ends of the main suspension rope 13 are supported by a suspension rope support mechanism (not shown).

[0033] The counterweight 14 is a weight that balances the weight of the car 11 to reduce the load when the main suspension rope 13 is wound by the traction machine 12. The counterweight 14 moves in the direction opposite to that of the car 11 in the hoistway 16. A buffer 20 is disposed below the counterweight 14. The buffer 20 is a device that alleviates the impact generated when the counterweight 14 descends below the lower limit position due to contact with the counterweight 14. In addition, although omitted in Figure 1 , a buffer for alleviating impact is also disposed below the car 11.

[0034] The compensating chain 15 is a chain for compensating for the disruption of the weight balance of the main suspension rope 13 caused by the position of the car 11. One end of the compensating chain 15 is connected to the counterweight 14, and the other end of the compensating chain 15 is connected to the car 11.

[0035] <Structure of the car>

[0036] Figure 2 This is a perspective view showing the structure of the car of the elevator according to the embodiment.

[0037] In this embodiment, taking the situation of observing the car 11 in the hoistway 16 from the landing 17 side of the elevator 10 as a reference, the front / rear / up / down / left / right directions are defined. In this case, when observed from the landing 17 side, the near front side is the front direction, the inner side is the rear direction, the upper side is the up direction, the lower side is the down direction, the left side is the left direction, and the right side is the right direction.

[0038] As Figure 2 shown, the car 11 includes a car frame 25 and a car cabin 26 disposed inside the car frame 25. A baffle 22 is installed at the front part of the car 11. The baffle 22 is a component that ensures the safety of users by shielding the gap generated at the elevator entrance due to the parking error of the car 11. The car 11 is supported on a guide rail (not shown) in a freely movable manner by an upper guide member 23 and a lower guide member 24 installed on the car frame 25.

[0039] The car cabin 26 forms a storage space for boarding passengers, luggage, etc. The car cabin 26 is composed of a car floor 27, side plates 28, and a ceiling 29. A car door (not shown) is switchably provided on the front surface of the car cabin 26. The car floor 27 and the ceiling 29 are arranged in a state of facing each other with the above storage space therebetween in the up / down direction. The side plates 28 are arranged to surround the four sides of the above storage space except for the part of the car door (not shown).

[0040] The car frame 25 is formed in a vertically long rectangle when observed from the front / rear direction. The car frame 25 is arranged to surround the car cabin 26. The car frame 25 has an upper frame 31 disposed at the upper part of the car cabin 26, a lower frame (not shown) disposed at the lower part of the car cabin 26, and a pair of longitudinal frames 33 disposed at the left and right side parts of the car cabin 26. The upper frame 31 is a component that extends relatively long in the left / right direction. The upper frame 31 is horizontally spanned between the upper end parts of the pair of longitudinal frames 33. One end part and the other end part in the length direction of the upper frame 31 are connected to the upper end parts of the corresponding longitudinal frames 33 respectively. The pair of longitudinal frames 33 are arranged in a state of facing each other in the left / right direction. Each longitudinal frame 33 is a component that extends relatively long in the up / down direction. The upper end part of the longitudinal frame 33 is connected to the end part in the length direction of the upper frame 31, and the lower end part of the longitudinal frame 33 is connected to the end part in the length direction of the lower frame.

[0041] In the elevator 10 constituted by the above structure, when performing the maintenance inspection operation of the traction machine 12 provided at the upper part of the hoistway 16, the operator 21 (refer to Figure 1)Enter above the car 11 from the landing 17 on the uppermost floor of the building, and use the ceiling 29 of the car 11 as the working floor. At this time, a stop mechanism 40 is provided in the elevator 10( Figure 3 ) so that the car 11 will not be pulled up by the counterweight 14. The stop mechanism 40 is provided on each of the left and right sides of the car 11. The stop mechanisms 40 are arranged symmetrically left and right. The operator 21 performing the maintenance inspection work of the traction machine 12 operates the stop mechanism 40 before releasing the brake (not shown) of the traction machine 12 that restricts the movement of the main suspension rope 13, thereby fixing the car 11 to the guide rail 30 (refer to Figure 3 ). The guide rail 30 is fixed to the wall 34 of the hoistway in a centered state erected vertically. The guide rails 30 are arranged in pairs on the left and right of the car 11, and can support the car 11 so as to be movable in the vertical direction by engaging with the upper guide member 23 and the lower guide member 24 provided on the car 11.

[0042] <Structure of the stop mechanism>

[0043] Figure 3 is a view showing the structure of the stop mechanism provided in the elevator according to the embodiment.

[0044] As Figure 3 shown, the stop mechanism 40 includes a stop pin operation part 41 and a stop pin receiving part 42. The stop pin operation part 41 includes a stop pin 43, a support member 44 that supports the stop pin 43, a first fixing bracket 45, a second fixing bracket 46, a locking member 47, and a cover member 48 (refer to Figure 4 ). The stop pin 43 is provided on the car 11 as an example of a second engaging member. The support member 44 is a member that supports the stop pin 43 so as to be engageable and disengagable with the engaging member 51. The first fixing bracket 45 and the second fixing bracket 46 are elements constituting the fixing member. The fixing member is a member that is connected to the support member 44 and fixed to both the upper frame 31 and the vertical frame 33. The structure of the stop pin operation part 41 will be described in detail later.

[0045] The stop pin receiving part 42 includes an engaging member 51. The engaging member 51 is provided on the guide rail 30 as an example of a first engaging member. The engaging member 51 is fixed to the guide rail 30. A through hole 52 is provided in the engaging member 51. The through hole 52 is a hole into which the stop pin 43 is inserted when the car 11 is fixed to the guide rail 30 by the stop mechanism 40. In the present embodiment, as an example, the stop pin 43 is a pin with a circular cross section (round pin), and the through hole 52 is a circular hole corresponding to the cross-sectional shape of the stop pin 43. The engaging member 51 is fixed to the guide rail 30 by a bolt / nut mechanism 53. The bolt / nut mechanism is a mechanism that fastens and fixes components to each other using bolts and nuts.

[0046] Hereinafter, refer toFigures 3 to 9 The structure of the stopper pin operation part 41 will be described in detail.

[0047] Figure 4 It is a perspective view showing the arrangement state of the stopper pin operation part. Figure 5 It is a perspective view showing the support structure of the stopper pin. Additionally, Figure 6 It is a top view showing the support structure of the stopper pin. Figure 7 It is a front view showing the support structure of the stopper pin. Figure 8 It is a left side view showing the support structure of the stopper pin. Figure 9 It is a right side view showing the support structure of the stopper pin. Additionally, in Figure 4 the marking of the vertical frame is omitted, and a part of the bolt / nut mechanism for fixing the components to each other is omitted.

[0048] The stopper pin 43 is supported by both the upper frame 31 and the vertical frame 33 through the support member 44, the first fixing bracket 45, and the second fixing bracket 46. Additionally, as Figure 3 shown, in the case of performing maintenance inspection work on the traction machine 12, one end portion of the stopper pin 43 is inserted into the through hole 52 of the engaging member 51. Thus, a state where the stopper pin 43 is engaged with the engaging member 51 is formed. A locking lever 54 is installed near the other end portion of the stopper pin 43. The locking lever 54 is arranged in a state of protruding radially outward from the outer peripheral surface of the stopper pin 43.

[0049] The support member 44 supports the stopper pin 43 so as to be movable in the left - right direction. Additionally, the support member 44 supports the stopper pin 43 rotatably about the central axis of the stopper pin 43. The support member 44 is an integral structure having a pair of support pieces 441, 442 opposed in the left - right direction and a connecting piece 443 connecting the pair of support pieces 441, 442. As Figure 5 shown, guide holes 441a, 442a are respectively provided in the pair of support pieces 441, 442. The stopper pin 43 is supported movably and rotatably as described above by being inserted into the guide holes 441a, 442a of the support member 44. Additionally, fixing holes 441b, 442b are respectively provided in the pair of support pieces 441, 442. The fixing holes 441b, 442b are holes for fixing the support member 44 and the first fixing bracket 45.

[0050] As Figure 3 and Figure 4As shown, the first fixed bracket 45 is an integral structure having three connecting pieces 451, 452, and 453. The connecting piece 451 corresponds to the first connecting piece, and the connecting piece 452 corresponds to the second connecting piece. The connecting piece 451 and the connecting piece 453 are arranged in a state of being opposed to each other in the left-right direction. The connecting piece 452 is arranged in a direction perpendicular to the connecting piece 451 and the connecting piece 453. The first fixed bracket 45 is bent into a substantially inverted L shape (substantially inverted J shape) when viewed from the front-rear direction. As Figure 4 shown, the width dimension W1 of the first fixed bracket 45 in the front-rear direction is larger than the width dimension W2 of the upper frame 31. The first fixed bracket 45 is arranged in a state of carrying the upper frame 31 over the entire width of the upper frame 31. In addition, one end side in the width direction of the first fixed bracket 45 is arranged to protrude forward from the upper frame 31.

[0051] The first fixed bracket 45 is connected to the upper frame 31, the vertical frame 33, and the support member 44 through the three connecting pieces 451, 452, and 453. Specifically, the connecting piece 451 is connected and fixed to the support piece 441 of the support member 44 through a bolt / nut mechanism 55 in the left-right direction corresponding to the first direction. The bolt / nut mechanism 55 is arranged at a position offset forward from the upper frame 31. The bolt / nut mechanism 55 is installed using the fixing hole 441b provided on the support piece 441 (refer to Figure 5 ). In addition, the connecting piece 451 is connected and fixed to the main surface 33a of the vertical frame 33 through a bolt / nut mechanism 56 in the left-right direction (refer to Figure 3 ). The main surface 33a of the vertical frame 33 corresponds to the first surface of the vertical frame 33. The bolt / nut mechanism 56 is arranged within the width dimension W2 of the upper frame 31. On the other hand, the connecting piece 452 is connected and fixed to the main surface (lower surface) 31a of the upper frame 31 through a bolt / nut mechanism 57 in the up-down direction corresponding to the second direction. The main surface 31a of the upper frame 31 corresponds to the first surface of the upper frame 31. The bolt / nut mechanism 57 is arranged within the width dimension W2 of the upper frame 31. The connecting piece 453 is connected and fixed to the support piece 442 of the support member 44 through a bolt / nut mechanism 58 in the left-right direction. The bolt / nut mechanism 58 is installed using the fixing hole 442b provided on the support piece 442 (refer to Figure 5 ). The bolt / nut mechanism 58 is arranged coaxially with the above-mentioned bolt / nut mechanism 55.

[0052] As Figure 3 and Figure 4As shown, the second fixing bracket 46 is an integral structure having two connecting pieces 461 and 462. The second fixing bracket 46 is formed in a flat plate shape. The connecting piece 461 corresponds to the third connecting piece, and the connecting piece 462 corresponds to the fourth connecting piece. The second fixing bracket 46 is connected to the upper frame 31, the vertical frame 33, and the support member 44 through the two connecting pieces 461 and 462. Specifically, the connecting piece 461 is connected and fixed to the connecting piece 443 of the support member 44 in the front-rear direction corresponding to the third direction by a bolt / nut mechanism (not shown). This bolt / nut mechanism is installed using the fixing holes 59 provided in the connecting piece 461 and the connecting piece 443. In addition, the connecting piece 461 is connected and fixed to the side surface 31b of the upper frame 31 in the front-rear direction by a bolt / nut mechanism 60 (refer to Figure 3 ). The side surface 31b of the upper frame 31 corresponds to the second surface of the upper frame 31. The connecting piece 462 is connected and fixed to the side surface 33b of the vertical frame 33 in the front-rear direction by a bolt / nut mechanism 61. The side surface 33b of the vertical frame 33 corresponds to the second surface of the vertical frame 33.

[0053] The locking member 47 is connected and fixed to the support piece 442 of the support member 44 in the left-right direction by a bolt / nut mechanism 65. Two locking grooves 47a and 47b are provided in the locking member 47. The two locking grooves 47a and 47b are formed at a predetermined distance in the left-right direction. Each of the locking grooves 47a and 47b is formed in a substantially U shape when viewed from the front-rear direction. The locking rod 54 mounted on the detent pin 43 is locked in the locking groove 47a or the locking groove 47b.

[0054] The locking groove 47a is a groove for holding the detent pin 43 in the engaged position, and the locking groove 47b is a groove for holding the detent pin 43 in the retracted position. As Figure 3 shown, the engaged position is the position where the detent pin 43 is engaged with the engaging member 51, and the retracted position is the position where the detent pin 43 retracts (recedes) from the engaged position. In the state where the locking rod 54 is locked in the locking groove 47a, the detent pin 43 is inserted into the through hole 52 of the engaging member 51. In the state where the locking rod 54 is locked in the locking groove 47b, the detent pin 43 is disengaged from the through hole 52 of the engaging member 51. The operator can lock the locking rod 54 in the locking groove 47a or the locking groove 47b by pinching the locking rod 54 with a finger to rotate and move the detent pin 43.

[0055] The cover member 48 is a member that protects switches, wirings, etc. not shown. The cover member 48 is detachably mounted on the locking member 47, for example. In the state where the cover member 48 is installed, the locking rod 54 interferes (contacts) with the cover member 48, thereby restricting the rotation range of the detent pin 43. Therefore, when the operator pinches the locking rod 54 with a finger to operate the detent pin 43, it is necessary to remove the cover member 48.

[0056] In addition to the above structure, the elevator 10 according to this embodiment further includes a connecting bracket 70 that connects the upper frame 31 and the vertical frame 33 (see Figure 4 ). Similar to the above-described stopper mechanism 40, one connecting bracket 70 is symmetrically arranged on the left and right sides of the car 11. The connecting bracket 70 is an integral structure having two connecting pieces 701 and 702. The connecting bracket 70 is connected to the upper frame 31 and the vertical frame 33 through the two connecting pieces 701 and 702. Specifically, the connecting piece 701 is fixedly connected to the side surface 31b of the upper frame 31 in the front-rear direction by a bolt / nut mechanism 71. The connecting piece 702 is fixedly connected to the side surface 33b of the vertical frame 33 in the front-rear direction by a bolt / nut mechanism 72.

[0057] The connecting bracket 70 is arranged in a state of sandwiching the upper frame 31 in the front-rear direction and opposing the second fixing bracket 46. The connecting bracket 70 has the same structure as the above-described second fixing bracket 46. A long hole 70a is provided in the connecting bracket 70, and a long hole 46a is also provided in the second fixing bracket 46. The long holes 46a and 70a correspond to position adjusting portions for shifting the position of the upper frame 31 relative to the vertical frame 33 upward from a reference position. The reference position is the position where the upper frame 31 is finally installed in the assembly process of the car 11.

[0058] At the connecting portion of the upper frame 31 and the vertical frame 33, by loosening the fastening of the upper bolt / nut mechanisms 61 and 72 and removing the lower bolt / nut mechanisms 61 and 72, the upper frame 31 can be moved in the long axis direction (up and down direction) of the long holes 46a and 70a. In the assembly process of the car 11, after assembling the car frame 25, the ceiling 29 and the side plate 28 are installed. At this time, the ceiling 29 is fixed near the upper frame 31 inside the car frame 25, and the side plate 28 is installed in this state. However, when the upper frame 31 is arranged at the reference position, the ceiling 29 interferes with the side plate 28, and it becomes difficult to install the side plate 28. In such a case, if the position of the upper frame 31 is shifted upward along the long holes 46a and 70a as described above and the upper frame 31 is temporarily fixed by tightening the bolt / nut mechanisms 61 and 72 here, the interference with the ceiling 29 can be avoided and the side plate 28 can be installed, and then the ceiling 29 is installed on the side plate 28. In addition, after the side plate 28 and the ceiling 29 are installed inside the car frame 25, the fastening of the bolt / nut mechanisms 61 and 72 is loosened, the upper frame 31 is arranged at the reference position, and here, by tightening the upper and lower bolt / nut mechanisms 61 and 72, the upper frame 31 can be fixed at the reference position.

[0059] In the elevator 10 according to the present embodiment, an operator 21 performing maintenance inspection work on the traction machine 12 operates the locking mechanism 40 so that even if the braking of the traction machine 12 is released, the car 11 will not be pulled up by the counterweight 14. Specifically, before releasing the brake, the operator 21 pinches the locking lever 54 with a finger to appropriately rotate and move the locking pin 43, thereby switching the position where the locking lever 54 is inserted from the locking groove 47b to the locking groove 47a. As a result, the locking pin 43 is inserted into the through hole 52 of the engaging member 51, that is, the locking pin 43 is engaged with the engaging member 51. In this state, when the operator 21 releases the brake of the traction machine 12, a tensile load generated by the counterweight 14 is applied to the car 11.

[0060] <Effect of the embodiment>

[0061] In the present embodiment, the locking pin 43 is supported by both the upper frame 31 and the vertical frame 33 via the support member 44, the first fixing bracket 45, and the second fixing bracket 46. Therefore, the tensile load generated by the counterweight 14 is dispersedly applied to the upper frame 31 and the vertical frame 33. That is, the tensile load generated by the counterweight 14 can be borne by both the upper frame 31 and the vertical frame 33. Therefore, compared with the case where the locking pin 43 is supported only by the upper frame 31, deformation of the upper frame 31 can be suppressed. Therefore, when the car 11 is fixed to the guide rail 30 by the locking mechanism 40, even if the longitudinal sectional dimension of the upper frame 31 of the car 11 is not increased, the tensile load generated by the counterweight 14 can be borne. As a result, the height dimension of the car frame 25 and the elevated dimension of the hoistway 16 can be reduced. In addition, in the elevator 10 provided with the locking mechanism 40 and the elevator not provided with the locking mechanism 40, the longitudinal sectional dimension of the upper frame 31 can be set to the same dimension to achieve common use of components.

[0062] In addition, in the present embodiment, the locking mechanism 40 includes: a support member 44 that supports the locking pin 43 so as to be engageable and disengageable with respect to the engaging member 51; and fixing members 45 and 46 that are connected to the support member 44 and fixed to both the upper frame 31 and the vertical frame 33. Thereby, the tensile load generated by the counterweight 14 can be transmitted to the upper frame 31 and the vertical frame 33 through the support member 44 and the fixing members 45 and 46.

[0063] In addition, in the present embodiment, the fixing member includes a first fixing bracket 45 fixed to the main surface 31a of the upper frame 31 and the main surface 33a of the vertical frame 33, and a second fixing bracket 46 fixed to the side surface 31b of the upper frame 31 and the side surface 33b of the vertical frame 33. Thus, compared with the case where the fixing member is composed of a single component, the tensile load generated by the counterweight 14 can be evenly distributed to the upper frame 31 and the vertical frame 33. In addition, the first fixing bracket 45 and the second fixing bracket 46 are respectively fixed to different surfaces with respect to the upper frame 31 and the vertical frame 33, so that the tensile load can be prevented from concentrating on a specific surface.

[0064] In addition, in the present embodiment, the first fixing bracket 45 includes a connecting piece 451 connected to the support member 44 and the vertical frame 33 in the left-right direction, and a connecting piece 452 connected to the upper frame 31 in the up-down direction. The second fixing bracket 46 includes a connecting piece 461 connected to the support member 44 and the upper frame 31 in the front-rear direction, and a connecting piece 462 connected to the vertical frame 33 in the front-rear direction. Thus, the first fixing bracket 45 and the second fixing bracket 46 can be arranged in a space-saving manner at the connecting portion between the upper frame 31 and the vertical frame 33.

[0065] In addition, in the present embodiment, the first fixing bracket 45 is arranged in a state of supporting the upper frame 31. Thus, the connection strength between the upper frame 31 and the vertical frame 33 can be improved.

[0066] In addition, in the present embodiment, the connecting bracket 70 is arranged in the front-rear direction at a position opposite to the second fixing bracket 46, and the upper frame 31 and the vertical frame 33 are connected by the connecting bracket 70. Thus, both end portions in the width direction of the upper frame 31 can be evenly connected to the vertical frame 33 by the second fixing bracket 46 and the connecting bracket 70.

[0067] In addition, in the present embodiment, the connecting bracket 70 has the same structure as the second fixing bracket 46. Thus, the universality of the components can be achieved.

[0068] In addition, in the present embodiment, the connecting bracket 70 and the second fixing bracket 46 respectively have long holes 70a and 46a. Thus, during the assembly process of the car 11, the side plate 28 can be installed without interference with the ceiling 29. In addition, the connecting bracket 70 and the second fixing bracket 46 can have two functions. Specifically, they have the function of connecting the upper frame 31 and the vertical frame 33, and the function of temporarily shifting the position of the upper frame 31 upward.

[0069] <Modification examples, etc.>

[0070] In addition, the present invention is not limited to the above-described embodiments and includes various modifications. For example, in the above-described embodiments, the present invention has been described in detail for easy understanding, but the present invention is not limited to having all the structures described in the above-described embodiments. In addition, a part of the structure of a certain embodiment can be replaced with the structure of another embodiment. In addition, the structure of another embodiment can be added to the structure of a certain embodiment. In addition, with respect to a part of the structure of each embodiment, it can also be deleted, or another structure can be added, or it can be replaced with another structure.

[0071] For example, in the above-described embodiment, a structure is adopted in which the stopper pin receiving portion 42 having the engaging member 51 is provided on the guide rail 30, and the stopper pin operating portion 41 having the stopper pin 43 is provided on the car 11. However, the present invention is not limited to the structure of the above-described embodiment. For example, a structure can also be adopted in which the stopper pin receiving portion 42 having the engaging member 51 is provided on the car 11, and the stopper pin operating portion 41 having the stopper pin 43 is provided on the guide rail 30.

[0072] In addition, in the above-described embodiment, the elongated holes 46a and 70a are cited as the position adjusting portions provided on the second fixing bracket 46 and the connecting bracket 70, but the present invention is not limited thereto. For example, the position adjusting portion can also be constituted by a plurality of through holes (holes for inserting bolts) arranged in the vertical direction.

[0073] In addition, in the above-described embodiment, an example is shown in which the traction machine 12 is provided above the hoistway 16, but the present invention is not limited thereto. For example, it can also be applied to the case where the traction machine 12 is provided in the middle layer of the hoistway 16.

[0074] Reference Signs

[0075] 10 - elevator; 11 - car; 30 - guide rail; 31 - upper frame; 33 - vertical frame; 40 - stopper mechanism; 43 - stopper pin (second engaging member); 44 - support member; 45 - first fixing bracket (fixing member); 46 - second fixing bracket (fixing member); 46a - elongated hole (position adjusting portion); 51 - engaging member (first engaging member); 70 - connecting bracket; 70a - elongated hole (position adjusting portion); 451 - connecting piece (first connecting piece); 452 - connecting piece (second connecting piece); 461 - connecting piece (third connecting piece); 462 - connecting piece (fourth connecting piece).

Claims

1. An elevator, characterized in that, Comprising: A car having an upper frame and vertical frames; Guide rails for guiding the movement of the car; and A stop mechanism having a first engaging member provided on the guide rail and a second engaging member provided on the car, and fixing the car to the guide rail by engaging the first engaging member with the second engaging member, The second engaging member is supported by both the upper frame and the vertical frames.

2. The elevator according to claim 1, wherein The stop mechanism further has: a support member for supporting the second engaging member so as to be engageable and disengageable with respect to the first engaging member; And a fixing member connected to the support member and fixed to both the upper frame and the vertical frames.

3. The elevator according to claim 2, wherein The fixing member has: a first fixing bracket fixed to the first surface of the upper frame and the first surface of the vertical frame; and a second fixing bracket fixed to the second surface of the upper frame and the second surface of the vertical frame.

4. The elevator according to claim 3, wherein The first fixing bracket has: a first connecting piece connected to the support member and the vertical frame in a first direction; And a second connecting piece connected to the upper frame in a second direction perpendicular to the first direction, The second fixing bracket has: a third connecting piece connected to the support member and the upper frame in a third direction perpendicular to the first direction and the second direction; And a fourth connecting piece connected to the vertical frame in the third direction.

5. The elevator according to claim 3, wherein The first fixing bracket is arranged in a state of carrying the upper frame.

6. The elevator according to claim 4, wherein It further has a connecting bracket arranged at a position opposed to the second fixing bracket in the third direction and connecting the upper frame and the vertical frame.

7. The elevator according to claim 6, wherein The connecting bracket has the same structure as the second fixing bracket.

8. The elevator according to claim 6, wherein The connecting bracket and the second fixing bracket have a position adjusting portion for shifting the position of the upper frame relative to the vertical frame upward from a reference position.

Citation Information

Patent Citations

  • Stop locking device for elevator car

    JP2000203774A