JP2018065627A - Double deck elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double deck elevator capable of suppressing first and second inner cars from moving irregularly with respect to an outer car. In a double deck elevator, an outer car is provided with an outer car stopping device that starts to stop with respect to an outer car rail, and at least one of the first and second inner cars is connected to a guided rail. On the other hand, an internal car stop device that is started to stop is provided, and the internal car stop device is started when the external car stop device is started. [Selection] Figure 2

Description

  The present invention relates to a double deck elevator including first and second inner cars arranged in parallel in the vertical direction and an outer car in which the first and second inner cars are arranged.

  2. Description of the Related Art Conventionally, as an elevator, there is known a double deck elevator including first and second inner cars arranged in parallel in the vertical direction and an outer car in which the first and second inner cars are arranged (for example, patents). Reference 1). The first and second inner cars are connected to the inner car rope, and the inner car rope is wound around a rotating body fixed to the outer car.

  Incidentally, in the double deck elevator according to Patent Document 1, when the outer car rises to an abnormal position (specifically, when the counterweight collides with the shock absorber), the first and second inner cars are outside. Suppresses irregular movement of the car. However, it is also conceivable in other situations that the first and second inner cars move irregularly with respect to the outer car.

JP 2013-35620 A

  Then, a subject is providing the double deck elevator which can suppress that a 1st and 2nd inner car becomes an irregular movement with respect to an outer car.

  The double deck elevator includes first and second inner cars arranged in parallel in the vertical direction, an outer car in which the first and second inner cars are arranged, and an outer car that guides the outer car along the vertical direction. A rail, a first rail fixed to the outer car and guiding the first inner car along the vertical direction, and a second rail fixed to the outer car and guiding the second inner car along the vertical direction A rail, an inner cage rope connected to each of the first inner cage and the second inner cage, and a rotating body around which the inner cage rope is wound and fixed to the outer cage, The car includes an outer car stop device that is activated to stop against the outer car rail, and at least one of the first and second inner cars is activated to stop with respect to the guided rail. An inner car stopping device, Stop device, the outer cage stop device when starting, it starts.

  The double deck elevator includes an inner car rail that forms the first rail on the upper side and the second rail on the lower side, and the outer car is an upper frame that is spaced apart in the vertical direction. And a lower frame, and a vertical frame extending in the vertical direction and fixed to the upper frame and the lower frame, respectively, the rotating body is fixed to the upper frame, and the outer car stop device is It may be arranged below the outer car, and the lower end of the inner car rail may be fixed to the lower frame.

  In the double deck elevator, the upper end portion of the inner car rail may be separated from the upper frame.

  Moreover, in a double deck elevator, the structure that the compression strength of the vertical direction of the said vertical frame is smaller than the compression strength of the vertical direction of the said inner cage rail may be sufficient.

  In the double deck elevator, the inner car stopping device may be activated before the outer car stopping device is activated.

  In the double deck elevator, the inner car stopping device is provided in both the first and second inner cars, and the inner car stopping devices of the first and second inner cars are activated simultaneously. It may be configured.

  As described above, the double deck elevator has an excellent effect that the first and second inner cars can be prevented from moving irregularly with respect to the outer car.

FIG. 1 is an overall schematic diagram of a double deck elevator according to an embodiment. FIG. 2 is a main part schematic diagram of the double deck elevator according to the embodiment. FIG. 3 is a schematic diagram of a main part of a double deck elevator according to another embodiment.

  Hereinafter, an embodiment of a double deck elevator will be described with reference to FIGS. 1 and 2. In each figure (the same applies to FIG. 3), the dimensional ratio in the drawing does not necessarily match the actual dimensional ratio, and the dimensional ratio between the drawings does not necessarily match.

  As shown in FIG. 1, a double deck elevator (hereinafter also simply referred to as “elevator”) 1 according to the present embodiment includes first and second inner cars 2 and 3 that are arranged in parallel in the vertical direction. The first inner car 2 is disposed above the second inner car 3 and is also referred to as an upper inner car 2, and the second inner car 3 is also referred to as a lower inner car 3.

  The elevator 1 includes an outer car 4 in which the first and second inner cars 2 and 3 are arranged, and outer car rails 5 and 5 that guide the outer car 4 along the vertical direction. The outer car 4 includes an outer car stopping device 4 a that is activated to stop the outer car rail 5.

  The elevator 1 also includes an outer car rope 6 connected to the outer car 4 and a hoisting machine 7 that moves the outer car 4 up and down via the outer car rope 6. Further, the elevator 1 includes a speed detection device 8 that detects the moving speed of the outer car 4, a position detection device 9 that detects the position of the outer car 4, and a shock absorber 10 for alleviating the collision of the outer car 4. I have.

  The hoisting machine 7 includes a sheave 7a around which the outer car rope 6 is wound, a first drive source 7b that rotates the sheave 7a, and a braking unit that brakes the sheave 7a so as to stop the rotation of the sheave 7a. 7c. Then, the first drive source 7b rotates the sheave 7a to one side, so that the outer car 4 rises, and the first drive source 7b rotates the sheave 7a to the other side, so that the outer car 4 becomes , Descend.

  The speed detection device 8 has an endless circular detection rope 8a, a connecting portion 8b that connects the detection rope 8a and the outer cage 4, a detection wheel 8c around which the detection rope 8a is wound, and a tension acting on the detection rope 8a. Thus, a tensioning wheel 8d around which the detection rope 8a is wound is provided. The speed detection device 8 detects the moving speed of the outer car 4 based on the rotational speed of the detection wheel 8c.

  The speed detection device 8 includes first and second speed detection units 8e and 8f that detect that the outer car 4 is moving beyond a predetermined speed. The first speed detecting unit 8e detects that the outer car 4 is moving faster than the first set speed, and the second speed detecting unit 8f is a second speed that the outer car 4 is faster than the first set speed. Detects moving faster than the set speed.

  In the present embodiment, the speed detection device 8 includes a speed governor that detects an abnormal overspeed state, and the speed governor includes a detection wheel 8c, a first speed detection unit 8e, and a second speed detection unit. 8f. Therefore, in this embodiment, each speed detection unit 8e, 8f is a mechanical switch that is activated when a predetermined centrifugal force is applied using a physical centrifugal force. In addition, each speed detection part 8e, 8f is good also as an encoder which outputs a pulse for every predetermined rotation amount, in order to detect the moving speed of the outer cage | basket 4 linearly.

  And when the 1st speed detection part 8e detects the overspeed of the outer cage | basket 4, the braking part 7c of the hoisting machine 7 brakes the sheave 7a. Furthermore, when the second speed detector 8f detects an overspeed of the outer car 4, the outer car stopping device 4a is activated and the outer car 4 stops with respect to the outer car rail 5.

  The position detection device 9 includes first and second position detection units 9a and 9b that detect that the outer car 4 is positioned below a predetermined position. The first position detector 9a detects that the outer car 4 is positioned at a first lower position that is lower than the lower limit position that is normally located, and the second position detector 9b detects that the outer car 4 is lower than the first lower position. It detects that it located in the 2nd lower position which is lower than a position. For example, each position detector 9a, 9b can be a limit switch (contact switch) or a photoelectric sensor.

  As shown in FIG. 2, the elevator 1 is fixed to the position adjusting device 11 that adjusts the positions of the first and second inner cars 2 and 3 and the outer car 4, and the first and second inner cars 2 and 3 are connected to each other. Inner car rails 12 and 12 are provided for guiding along the vertical direction. The inner car rail 12 includes a first rail 12a for guiding the first inner car 2 along the vertical direction on the upper side, and a second rail 12b for guiding the second inner car 3 along the vertical direction. It is configured on the lower side.

  The outer cage 4 includes an upper frame 4b and a lower frame 4c that are spaced apart in the vertical direction, and a vertical frame 4d that extends along the vertical direction and is fixed to the upper frame 4b and the lower frame 4c. Yes. The outer car stop device 4 a is disposed on the lower side of the outer car 4. In the present embodiment, the outer car stop device 4a is fixed to the lower frame 4c.

  The position adjusting device 11 includes an inner car rope 11 a connected to the first inner car 2 and the second inner car 3, and a rotatable rotating body around which the inner car rope 11 a is wound and fixed to the outer car 4. 11b and a second drive source 11c that rotates the rotating body 11b. The rotating body 11b is fixed to the upper frame 4b of the outer car 4, and the second drive source 11c is an electric motor with a brake.

  The first inner car 2 includes rotatable suspension wheels 2a and 2a around which the inner cage rope 11a is wound, and the second inner cage 3 includes rotatable suspension wheels 3a and 3a around which the inner cage rope 11a is wound. I have. Each end of the inner car rope 11 a is fixed to the upper frame 4 b of the outer car 4. Thereby, the position adjustment apparatus 11 can adjust the position (mutual separation distance) of the first and second inner cars 2 and 3.

  For example, when the second drive source 11 c rotates the rotating body 11 b to one side, the first inner car 2 rises with respect to the outer car 4, while the second inner car 3 falls with respect to the outer car 4. . As a result, the first inner car 2 and the second inner car 3 are separated. On the other hand, when the second drive source 11c rotates the rotating body 11b to the other side, the first inner car 2 is lowered with respect to the outer car 4, while the second inner car 3 is raised with respect to the outer car 4. To do. As a result, the first inner car 2 and the second inner car 3 approach each other.

  The inner car rope 11a is connected to the first inner car 2 and the second inner car 3 so that the weight of the first and second inner cars 2 and 3 is received by the rotating body 11b. In the present embodiment, the inner cage rope 11a is attached to the first inner cage 2 and the second inner cage 3 so that the weights of the first and second inner cages 2 and 3 are received by the rotating body 11b and the upper frame 4b. Each is connected.

  A lower end portion 12 c of the inner car rail 12 is fixed to the lower frame 4 c of the outer car 4. Further, in order to reduce the weight of the inner car rail 12, the inner car rail 12 is arranged only in a range in which the first inner car 2 moves (that is, the upper inner car 2 can be guided). Specifically, the upper end portion 12 d of the inner car rail 12 is separated from the upper frame 4 b of the outer car 4.

  The inner car rail 12 is supported by the vertical frame 4d of the outer car 4 by, for example, a support member (not shown) disposed between the inner car rail 12 and the vertical frame 4d. . However, when a vertical force is applied to the inner car rail 12, the vertical frame 4d hardly bears the force.

  The first and second inner cars 2 and 3 are respectively provided with inner car stopping devices 2b and 3b that are activated to stop the inner car rail 12. The first and second inner cars 2 and 3 include emergency stop devices 2c and 3c that are activated to stop the inner car rail 12 when the inner car rope 11a is broken.

  In the present embodiment, the inner car stop devices 2b and 3b are arranged above the first and second inner cars 2 and 3, and the emergency stop devices 2c and 3c are the first and second inner cars 2 and 3, respectively. It is arranged on the lower side. In addition, arrangement | positioning of the inner cage | basket | car stop apparatuses 2b and 3b and the emergency stop apparatuses 2c and 3c is not restricted to such a structure.

  The inner car stopping devices 2 b and 3 b fix the first and second inner cars 2 and 3 to the inner car rail 12. That is, when the inner car stopping devices 2b and 3b are activated, the first and second inner car 2 and 3 are not displaced upward or downward with respect to the inner car rail 12. For example, the inner car stopping devices 2b and 3b can be a mechanism for gripping the inner car rail 12.

  The inner car stopping devices 2b and 3b are activated when the outer car stopping device 4a is activated. Specifically, the inner car stop devices 2b and 3b are started before the outer car stop device 4a is started. In the present embodiment, when the second speed detector 8f detects the overspeed of the outer car 4, the first speed detector 8e exceeds the outer car 4 in response to the start of the outer car stop device 4a. When the speed is detected, the inner car stop devices 2b and 3b are activated. Further, the inner car stopping devices 2b and 3b of the first and second inner cars 2 and 3 are activated simultaneously.

  In the present embodiment, the outer car stop device 4a and the emergency stop devices 2c and 3c employ mechanical stop devices that do not use electricity for signals or operation. Further, the outer car stop device 4a is activated only when the second speed detector 8f detects an overspeed when the outer car 4 is lowered. And the inner cage | basket | car stop apparatus 2b, 3b employ | adopts the stop apparatus which uses electricity for a signal and an action | operation.

  The configuration of the elevator 1 according to the present embodiment is as described above. Next, the operation of the elevator 1 according to the present embodiment will be described in comparison with the elevator according to the comparative example. The elevator according to the comparative example has a configuration in which the first and second inner cars 2 and 3 do not include the inner car stopping devices 2b and 3b. As an example, the case where the outer cage rope 6 is broken will be described.

  First, an elevator according to a comparative example will be described.

  In the elevator according to the comparative example, when the outer car rope 6 breaks, the outer car 4 descends faster than the first set speed. Thereby, since the 1st speed detection part 8e detects the overspeed of the outer cage | basket 4, the braking part 7c of the winding machine 7 brakes the sheave 7a. However, since the outer car rope 6 is broken, the outer car 4 does not stop and descends faster than the second set speed. Thereby, since the 2nd speed detection part 8f detects the excess speed of the outer cage | basket | car 4, the outer cage | basket | car stop apparatus 4a starts.

  At this time, since the first and second inner cars 2 and 3 are displaced with respect to the outer car 4, the first and second inner cars 2 and 3 move irregularly with respect to the outer car 4. Occurs. For example, the first and second inner cars 2 and 3 are lifted with respect to the outer car 4, and the first and second inner cars 2 and 3 are impacted downward when the outer car stopping device 4a is activated. And then jumps up.

  Further, when the first and second inner cars 2 and 3 receive a downward impact, the weight (including the loading amount) of the first and second inner cars 2 and 3 is borne by the outer car 4. . Specifically, most of the weight of the first and second inner cars 2, 3 and the like passes through the inner car rope 11a, the rotating body 11b, and the upper frame 4b with the outer car stopping device 4a as a fixed point. This is borne by the vertical frame 4d.

  Therefore, since it is necessary to increase the compressive strength in the vertical direction of the vertical frame 4d, there arises a problem that the weight of the vertical frame 4d inevitably increases. As a result, since the weight of the outer cage 4 increases, for example, the energy required for moving the outer cage 4 increases, and the upgrade and cost increase of other devices become necessary.

  Next, the elevator 1 according to this embodiment will be described.

  In the elevator 1 according to the present embodiment, when the outer car rope 6 is broken, the outer car 4 descends faster than the first set speed. Thereby, since the 1st speed detection part 8e detects the overspeed of the outer cage | basket 4, while the braking part 7c of the hoisting machine 7 brakes the sheave 7a, the 1st and 2nd inner cage | basket | car 2,3 The inner car stopping devices 2b and 3b are activated.

  As a result, the first and second inner cars 2 and 3 stop with respect to the inner car rail 12. At this time, the inner car stopping devices 2b and 3b of the first and second inner cars 2 and 3 are simultaneously activated. Thereby, since it can suppress that the inner cage rope 11a moves with respect to the rotary body 11b, it can suppress that the inner cage rope 11a remove | deviates from the rotary body 11b.

  Since the outer cage rope 6 is broken, the outer cage 4 descends faster than the second set speed without stopping. Thereby, since the 2nd speed detection part 8f detects the excess speed of the outer cage | basket | car 4, the outer cage | basket | car stop apparatus 4a starts. At this time, since the first and second inner cars 2 and 3 are fixed to the outer car 4 with the inner car rail 12 interposed, the first and second inner cars 2 and 3 become the outer car 4. On the other hand, it is possible to suppress irregular movement.

  Moreover, since the first and second inner cars 2 and 3 are fixed to the outer car 4 with the inner car rail 12 interposed, the weight (loading) of the first and second inner cars 2 and 3 etc. Most of the load (including the amount) is borne by the inner car rail 12 having the lower end 12c fixed to the lower frame 4c with the outer car stopping device 4a as a fixed point. Thereby, since the vertical frame 4d does not need to bear the said weight, the compression strength of the vertical direction of the vertical frame 4d can be made small.

  By the way, the inner car rail 12 must bear the weight of the first and second inner cars 2, 3 and the like when the emergency stop devices 2c, 3c are activated. Therefore, since the compression strength in the vertical direction of the inner car rail 12 is originally designed to be large, there is no need to further increase the inner car stopping devices 2b and 3b as described above. Therefore, the compressive strength in the vertical direction of the vertical frame 4d is smaller than the compressive strength in the vertical direction of the inner car rail 12.

  Thus, the weight of the vertical frame 4d can be reduced by reducing the compressive strength in the vertical direction of the vertical frame 4d. Thereby, since the weight of the outer cage 4 can be reduced, the energy required for the movement of the outer cage 4 can be reduced, and the upgrade and cost increase of other devices can be eliminated.

  As described above, the double deck elevator 1 according to the present embodiment includes the first and second inner cars 2 and 3 arranged in parallel in the vertical direction and the outer car in which the first and second inner cars 2 and 3 are arranged. 4, an outer car rail 5 for guiding the outer car 4 along the vertical direction, a first rail 12a fixed to the outer car 4 and guiding the first inner car 2 along the vertical direction, A second rail 12b fixed to the outer car 4 and guiding the second inner car 3 along the vertical direction, and an inner car rope 11a connected to the first inner car 2 and the second inner car 3 respectively. A rotating body 11b around which the inner car rope 11a is wound and fixed to the outer car 4. The outer car 4 starts to stop with respect to the outer car rail 5. Provided with a stopping device 4a, the first and second inner cages 2, At least one of them (in the present embodiment, the first and second inner cars 2 and 3) includes inner car stopping devices 2b and 3b that start to stop with respect to the rails 12a and 12b to be guided, The inner car stopping devices 2b and 3b are activated when the outer car stopping device 4a is activated.

  According to such a configuration, at least one of the first and second inner cages 2 and 3 (in the present embodiment, the first and second inner cages 2 and 3) is guided with respect to the guided rails 12a and 12b. There are provided internal car stopping devices 2b and 3b which are started to stop. When the outer car stopping device 4a is started, the inner car stopping devices 2b and 3b are started. Therefore, when the outer car 4 is stopped with respect to the outer car rail 5, the first and second inner car 2, 3 stops with respect to the rails 12a and 12b.

  Thereby, when the outer car 4 stops with respect to the outer car rail 5, it can suppress that the 1st and 2nd inner cars 2 and 3 are displaced with respect to the outer car 4. FIG. Therefore, when the outer car stop device 4 a is activated, it is possible to prevent the first and second inner cars 2 and 3 from moving irregularly with respect to the outer car 4.

  Moreover, in the double deck elevator 1 which concerns on this embodiment, it is provided with the inner cage rail 12 which comprises the said 1st rail 12a on the upper side, and the said 2nd rail 12b on the lower side, The said outer cage | basket | car 4 is An upper frame 4b and a lower frame 4c that are spaced apart in the vertical direction; and a vertical frame 4d that extends along the vertical direction and is fixed to the upper frame 4b and the lower frame 4c, respectively, and the rotation The body 11b is fixed to the upper frame 4b, the outer car stop device 4a is disposed below the outer car 4, and the lower end 12c of the inner car rail 12 is fixed to the lower frame 4c. This is the configuration.

  According to such a configuration, the inner car rail 12 configures the first rail 12a on the upper side and the second rail 12b on the lower side. The outer cage 4 includes an upper frame 4b and a lower frame 4c that are spaced apart in the vertical direction, and vertical frames 4d that extend along the vertical direction and are respectively fixed to the upper frame 4b and the lower frame 4c. I have. The rotating body 11 b is fixed to the upper frame 4 b, and the outer car stop device 4 a is disposed on the lower side of the outer car 4.

  By the way, in the configuration in which the inner car stopping devices 2b and 3b are not provided, for example, when the outer car stopping device 4a is activated while the outer car 4 is lowered, the first and second inner cars 2 and 3 are activated. Most of the weight (including the load) is borne by the vertical frame 4d via the inner cage rope 11a, the rotating body 11b, and the upper frame 4b. Therefore, it is necessary to increase the compressive strength in the vertical direction of the vertical frame 4d.

  On the other hand, according to the structure which concerns on this embodiment, the inner cage | basket | car stop apparatus 2b, 3b is provided, and the lower end part 12c of the inner cage | basket | rail rail 12 is being fixed to the lower frame 4c. As a result, when the outer car stopping device 4a is activated and the inner car stopping devices 2b and 3b are activated, most of the weight of the first and second inner cars 2, 3 and the like is borne by the inner car rail 12. It will be. Therefore, when the outer car stop device 4a is activated, it is possible to suppress the vertical frame 4d from bearing the weight of the first and second inner cars 2, 3 and the like.

  As described above, when the outer car stopping device 4a is activated, the vertical frame 4d can be prevented from bearing the weight of the first and second inner cars 2, 3 and the like. The frame 4d may not be reinforced. Therefore, the upper end portion 12d of the inner car rail 12 does not need to be fixed to the upper frame 4b, and the inner car rail 12 only needs to be disposed at least in a range in which the first inner car 2 moves.

  Therefore, the double deck elevator 1 according to the present embodiment employs a configuration in which the upper end portion 12d of the inner car rail 12 is separated from the upper frame 4b.

  According to such a configuration, since the upper end portion 12d of the inner car rail 12 is separated from the upper frame 4b, the weight of the inner car rail 12 can be reduced. Thereby, the weight of the whole car (the outer car 4, the first and second inner cars 2, 3) can be reduced.

  Further, as described above, when the outer car stop device 4a is activated, it is possible to suppress the vertical frame 4d from bearing the weight of the first and second inner cars 2, 3 and the like. It is not necessary to increase the compressive strength in the vertical direction. Therefore, the compressive strength in the vertical direction of the vertical frame 4a only needs to be at least strong enough to withstand the load that is normally borne.

  Therefore, in the double deck elevator 1 according to the present embodiment, a configuration is adopted in which the vertical compressive strength of the vertical frame 4d is smaller than the compressive strength of the inner car rail 12 in the vertical direction.

  According to such a configuration, the vertical frame 4d has a lower compressive strength in the vertical direction than the compressive strength in the vertical direction of the inner car rail 12, so that the weight of the vertical frame 4d can be reduced. Thereby, for example, the weight of the outer cage 4 can be reduced.

  Moreover, in the double deck elevator 1 which concerns on this embodiment, the said inner car stop apparatus 2b, 3b is a structure started before the said outer car stop apparatus 4a starts.

  According to such a configuration, the inner car stopping devices 2b and 3b are started before the outer car stopping device 4a is started. Therefore, when the outer car 4 stops with respect to the outer car rail 5, the first and first It is possible to reliably suppress the displacement of the inner cars 2 and 3 relative to the outer car 4. Therefore, when the outer car stop device 4a is activated, it is possible to reliably suppress the first and second inner cars 2 and 3 from moving irregularly with respect to the outer car 4.

  In the double deck elevator 1 according to this embodiment, the inner car stopping devices 2b and 3b are provided in both the first and second inner cars 2 and 3, and the first and second inner cars 2 are provided. , 3 are configured to start simultaneously.

  According to such a configuration, the inner car stopping devices 2b and 3b are provided in both the first and second inner cars 2 and 3 and are activated at the same time. It can suppress moving with respect to the rotary body 11b. Thereby, it can suppress that the inner cage rope 11a remove | deviates from the rotary body 11b, for example.

  In addition, a double deck elevator is not limited to the structure of above-described embodiment, Moreover, it is not limited to an above-described effect. Of course, the double deck elevator can be variously modified without departing from the gist of the present invention. For example, it is needless to say that one or a plurality of configurations and methods according to various modifications described below may be arbitrarily selected and employed in the configurations and methods according to the above-described embodiments.

  In the double deck elevator 1 according to the above-described embodiment, the inner car stopping devices 2b and 3b are provided in both the first and second inner cars 2 and 3. However, the double deck elevator is not limited to such a configuration. For example, as shown in FIG. 3, the inner car stopping devices 2b and 3b are provided in either one of the first and second inner cars 2 and 3 (the first inner car 2 in FIG. 3). The structure of, may be used.

  In the double deck elevator 1 according to the above embodiment, the inner car rope 11a is wound around the suspension wheels 2a and 3a of the first and second inner cars 2 and 3, so that the first inner car 2 and the second inner car 2 It is configured to be connected to the inner car 3 respectively. However, the double deck elevator is not limited to such a configuration. For example, as shown in FIG. 3, the inner cage rope 11 a is connected to the first inner cage 2 and the second inner cage 3 by being fixed to the first and second inner cages 2 and 3, respectively. It may be configured as follows.

  In the double deck elevator 1 according to FIG. 3, the position adjusting device 11 has an inner car rope 11 a and an inner car rope 11 a connected to the first inner car 2 and the second inner car 3, respectively, Rotating rotating bodies 11b and 11b fixed to the upper frame 4b of the car 4 are provided. Further, the position adjusting device 11 is fixed to the connecting body 11d connected to the second inner car 3 and the lower frame 4c of the outer car 4, and moves (extends or contracts) the connecting body 11d in the vertical direction. 11c.

  Moreover, the 2nd inner cage | basket 3 is provided with the fixing | fixed part 3d fixed to the inner cage | basket rope 11a in the lower end part of a side part. One end of the inner cage rope 11a is fixed to the first inner cage 2 and the other end of the inner cage rope 11a is fixed to the fixing portion 3d of the second inner cage 3. As a result, the position adjusting device 11 moves the connecting body 11d in the vertical direction (expands / contracts) by the second drive source 11c, so that the positions of the first and second inner cars 2 and 3 (separation distances) are set. Can be adjusted.

  By the way, the 2nd drive source 11c is taken as the electric motor with a brake. Thus, the second inner car 3 is not displaced with respect to the outer car 4 unless the second drive source 11c moves (does not expand or contract) the connecting body 11d in the vertical direction. In other words, the second inner car 3 is fixed to the outer car 4 with the connecting body 11d and the second driving source 11c interposed, when the second driving source 11c operates the brake.

  Therefore, even if the outer car stop device 4a is activated, the connection body 11d and the second drive source 11c can prevent the second inner car 3 from moving irregularly with respect to the outer car 4. Thereby, in the double deck elevator 1 according to FIG. 3, the first inner car 2 includes the inner car stopping device 2b and the emergency stop device 2c, while the second inner car 3 includes the inner car stopping device 3b and the emergency stop. The apparatus 3c is not provided.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the 1st rail 12a and the 2nd rail 12b are integrally formed. However, the double deck elevator is not limited to such a configuration. For example, the structure that the 1st rail 12a and the 2nd rail 12b are isolate | separated may be sufficient. For example, the outer cage 4 includes a middle frame disposed between the upper frame 4b and the lower frame 4c, the first rail 12a is fixed to the upper frame 4b and the middle frame, and the second rail 12b is The structure fixed to the frame and the lower frame 4c may be sufficient.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the rotary body 11b is being fixed to the upper frame 4b. However, the double deck elevator is not limited to such a configuration. For example, the structure that the rotary body 11b is being fixed to the lower frame 4c may be sufficient. For example, the structure that the rotary body 11b is being fixed to the vertical frame 4d may be sufficient.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the outer cage | basket | car stop apparatus 4a is arrange | positioned under the outer cage | basket | car 4. FIG. However, the double deck elevator is not limited to such a configuration. For example, the configuration in which the outer car stop device 4a is arranged at the center in the vertical direction of the outer car 4 may be employed. Further, for example, the outer car stopping device 4a may be arranged on the upper side of the outer car 4.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the upper end part 12d of the inner cage rail 12 spaces apart from the upper frame 4b. However, the double deck elevator is not limited to such a configuration. Further, for example, the upper end portion 12d of the inner car rail 12 may be fixed to the upper frame 4b.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the compression strength of the up-down direction of the vertical frame 4d is smaller than the compression strength of the up-down direction of the inner cage rail 12. FIG. However, the double deck elevator is not limited to such a configuration. For example, the vertical frame 4d may have the same compressive strength in the vertical direction as that of the inner car rail 12 in the vertical direction. Further, for example, the vertical frame 4d may have a higher compressive strength in the vertical direction than the compressive strength in the vertical direction of the inner car rail 12.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the inner car stop apparatus 2b, 3b starts before the outer car stop apparatus 4a starts. However, the double deck elevator is not limited to such a configuration. For example, the inner car stop devices 2b and 3b may be configured to start simultaneously with the start of the outer car stop device 4a. Further, for example, the inner car stop devices 2b and 3b may be configured to start after the outer car stop device 4a is started.

  Further, in the double deck elevator 1 according to the above-described embodiment, when the first speed detection unit 8e detects the overspeed of the outer car 4, the inner car stop devices 2b and 3b are activated, and the second speed detection unit 8f. When the overspeed of the outer car 4 is detected, the outer car stopping device 4a is activated. However, the double deck elevator is not limited to such a configuration. For example, when one speed detection unit (the first speed detection unit 8e or the second speed detection unit 8f) detects an overspeed of the outer car 4, the inner car stop devices 2b and 3b are started, and then the set time is reached. A configuration in which the outer car stop device 4a is activated after the lapse (or at the same time) may be employed.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the inner car stop apparatus 2b, 3b of the 1st and 2nd inner cars 2 and 3 starts simultaneously. However, the double deck elevator is not limited to such a configuration. For example, the inner car stopping devices 2b and 3b of the first and second inner cars 2 and 3 may be activated at different timings.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the inner-car stop apparatus 2b, 3b and the outer-car stop apparatus 4a start by detecting by the speed detection parts 8e and 8f. However, the double deck elevator is not limited to such a configuration. For example, the position detecting units 9a and 9b may detect the position of the outer car 4 to activate the inner car stopping devices 2b and 3b and the outer car stopping device 4a.

  For example, when the first position detecting unit 9a detects the position of the outer car 4, the inner car stopping devices 2b and 3b are activated, and when the second position detecting unit 9b detects the position of the outer car 4, The structure that the car stop apparatus 4a starts may be sufficient. Further, for example, when one position detection unit (the first position detection unit 9a or the second position detection unit 9b) detects the position of the outer car 4, the inner car stop devices 2b and 3b are activated and then set time is reached. After the elapse of time (or at the same time), the outer car stop device 4a may be activated.

  Moreover, in the double deck elevator 1 which concerns on the said embodiment, it is the structure that the inner cage | basket | car stop apparatus 2b, 3b is a different apparatus from the emergency stop apparatuses 2c, 3c. However, the double deck elevator is not limited to such a configuration. For example, the internal car stop devices 2b and 3b may be configured to also serve as the emergency stop devices 2c and 3c.

  Further, in the double deck elevator 1 according to the above-described embodiment, the outer car stop device 4a is activated only when the second speed detector 8f detects an overspeed when the outer car 4 is lowered. is there. However, the double deck elevator is not limited to such a configuration. For example, the outer car stopping device 4a may be activated when the second speed detecting unit 8f detects an overspeed when the outer car 4 is raised. Further, for example, the outer car stopping device 4a may be configured to be activated only when the second speed detecting unit 8f detects an overspeed when the outer car 4 is raised.

  In the double deck elevator 1 according to the above embodiment, the outer car stop device 4a and the emergency stop devices 2c, 3c are mechanical stop devices that do not use electricity for signals or operation, and the inner car stop device 2b, 3b is a structure which is a stop device which uses electricity for a signal and an action | operation. However, the double deck elevator is not limited to such a configuration.

  For example, the outer car stop device 4a may be a stop device that uses electricity for signals and operations. Further, for example, the emergency stop devices 2c and 3c may be configured to be a stop device that uses electricity for signals and operations. Further, for example, the inner car stop devices 2b and 3b may be configured to be mechanical stop devices that do not use electricity for signals and operations.

  Moreover, the double deck elevator 1 which concerns on the said embodiment is the structure that it is a rope type elevator which has the outer cage rope 6 and the hoisting machine 7. FIG. However, the double deck elevator is not limited to such a configuration, and may be, for example, a linear motor elevator or a hydraulic elevator.

  Further, in the double deck elevator 1, for example, each stop device 2b, 3b, 4a is configured to stop (fix) to the rails 12a (12), 12b (12), 5 immediately after activation. Good. Further, for example, each stop device 2b, 3b, 4a may be configured to start and gradually stop (fix) with respect to each rail 12a (12), 12b (12), 5.

  Further, in the double deck elevator 1, the inner car stopping devices 2b and 3b may be configured not only when the outer car stopping device 4a is activated, but also when activated, for example, manually. According to such a configuration, for example, an inspection space for an inspector can be secured by activating the inner car stop devices 2b and 3b.

DESCRIPTION OF SYMBOLS 1 ... Double deck elevator, 2 ... 1st internal car, 2a ... Suspension car, 2b ... Internal car stop device, 2c ... Emergency stop device, 3 ... 2nd internal car, 3a ... Suspension car, 3b ... Internal car stop device, 3c ... Emergency stop device, 3d ... Fixing part, 4 ... Outer cage, 4a ... Outer cage stop device, 4b ... Upper frame, 4c ... Lower frame, 4d ... Vertical frame, 5 ... Outer cage rail, 6 ... Outer cage rope, 7 ... Hoisting machine, 7a ... sheave, 7b ... first drive source, 7c ... braking part, 8 ... speed detection device, 8a ... detection rope, 8b ... connecting part, 8c ... detection car, 8d ... tension car, 8e ... first 1 speed detection unit, 8f ... second speed detection unit, 9 ... position detection device, 9a ... first position detection unit, 9b ... second position detection unit, 10 ... buffer, 11 ... position adjustment device, 11a ... inner car Rope, 11b ... Rotating body, 11c ... Second drive source, 11d ... Connection body, 12 ... Inner car rail, 12a ... First Lumpur, 12b ... second rail, 12c ... lower portion, 12d ... upper portion

Claims (6)

First and second inner baskets arranged in the vertical direction;
An outer car with the first and second inner cars disposed therein;
An outer cage rail for guiding the outer cage along the vertical direction;
A first rail that is fixed to the outer car and guides the first inner car along a vertical direction;
A second rail fixed to the outer car and guiding the second inner car along the vertical direction;
An inner cage rope connected to each of the first inner cage and the second inner cage;
A rotating body around which the inner cage rope is wound and fixed to the outer cage,
The outer car includes an outer car stop device that is activated to stop against the outer car rail,
At least one of the first and second inner cars includes an inner car stop device that starts to stop with respect to the guided rail,
The inner car stopping device is a double deck elevator that is activated when the outer car stopping device is activated. An inner car rail that constitutes the first rail on the upper side and the second rail on the lower side;
The outer cage includes an upper frame and a lower frame that are spaced apart in the vertical direction, and a vertical frame that extends along the vertical direction and is fixed to the upper frame and the lower frame, respectively.
The rotating body is fixed to the upper frame;
The outer car stop device is disposed on the lower side of the outer car,
The double deck elevator according to claim 1, wherein a lower end portion of the inner car rail is fixed to the lower frame.   The double deck elevator according to claim 2, wherein an upper end portion of the inner car rail is separated from the upper frame.   The double deck elevator according to claim 2 or 3, wherein the vertical frame has a compressive strength in the vertical direction that is lower than a compressive strength in the vertical direction of the inner car rail.   The double deck elevator according to any one of claims 1 to 4, wherein the inner car stopping device is activated before the outer car stopping device is activated. The inner car stopping device is provided in both the first and second inner cars,
The double deck elevator according to any one of claims 1 to 5, wherein the inner car stopping devices of the first and second inner cars are activated simultaneously.

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