JP5827596B2 - Elevator hoisting machine inspection table and its assembly method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an elevator hoisting machine inspection table used for maintenance inspection of a hoisting machine and an assembling method thereof .

  In general, when a hoisting machine is placed at a height that is out of reach from the floor of the pit on the lowest floor of the elevator hoistway, an operator must make a safe and efficient maintenance inspection. An inspection work platform is installed in the pit. On the other hand, when the hoisting machine is not maintained and inspected, the inspection work table is stored at a position that does not overlap the elevator hoisting route in order to avoid contact with the car operating in the hoistway.

  In addition, while the operator is entering the pit, the operation of the car is stopped to ensure the safety of the worker. However, if the operation of the car is stopped for a long time, the elevator user Therefore, it is desirable to reduce the time required for maintenance and inspection of the hoisting machine as much as possible by storing the inspection work table in the pit. Further, since the maintenance and inspection of the hoisting machine is often performed by one worker, an inspection work table that can be installed and stored by one worker is desired.

  Therefore, although the hoisting machine is not maintained and inspected, as one of the prior arts of the inspection work table used for inspecting the control panel arranged in the pit, an elevator control device ( Control panel) and a folding inspection work table for control device inspection are arranged, and when the control device (control panel) is not inspected, the inspection work table is folded and stored under the vertical projection of the control device (control panel). An elevator apparatus having a configuration that does not interfere with other devices in the hoistway has been proposed (see, for example, Patent Document 1).

JP 2001-199647 A

  When the inspection work table of the control device (control panel) of the prior art elevator device disclosed in Patent Document 1 is used for a hoisting machine, the inspection work table is folded and stored under the vertical projection of the hoisting machine. Therefore, it is necessary to secure a storage space of the same size as the inspection work table below the hoisting machine. However, the hoistway dimensions in elevators are an important factor that determines the product value, and it is not the intention to increase the hoistway dimensions in consideration of the storage space on the inspection work table. It is not always possible to secure a storage space for the work table. As described above, the elevator apparatus of the prior art is limited to the storage area of the inspection work table, and therefore can be applied only to an elevator that can secure the storage space of the inspection work table in a fixed place in the pit. The problem is that it is low.

The present invention has been made based on the actual situation of such a conventional technique, and an object of the present invention is to provide an elevator hoisting machine inspection table that can increase the degree of freedom of a storage place and is excellent in versatility. . It is another object of the present invention to provide an assembling method that allows one worker to easily perform assembling work.

In order to achieve the above-described object, the elevator hoisting machine inspection table of the present invention is used when a maintenance inspection of the hoisting machine is performed on an elevator provided with a hoisting machine arranged on a hoistway through a base. A bracket provided on the base so as to protrude upward, a frame portion having one end attached to the bracket, and a support column that supports the other end of the frame portion and keeps the frame portion horizontal. , and a stool placed on the frame portion, the frame portion is provided on the one end, have a hooked hook to the bracket, the elevator is provided in the hoistway, the A control panel that controls the driving of the hoisting machine, a signal output device that outputs a signal to the control panel, and the frame portion attached to the bracket in a state where the signal is output from the signal output device to the control panel. An anti-mounting device, and the control panel can drive the hoist when the signal is output from the signal output device, and the signal is output from the signal output device. The signal output device includes a cable having one end connected to the control panel, a connector plug provided at the other end of the cable, and the connector. A connector cap that enables the signal to be output to the control panel by connecting a plug; and the attachment prevention device is detachably attached to a hook portion of the frame portion of the bracket, A connector cap position fixing portion that fixes the position of the connector cap with respect to the bracket; and the cable is connected to the connector cap by the connector cap position fixing portion. It said connector plug in a state where the position of Kuta cap is fixed is characterized in that it is set to the length of the shortest to be connected to the connector cap.

According to the elevator hoisting machine inspection table of the present invention, the degree of freedom of the storage location can be increased and the versatility is excellent. Further, according to the assembling method of the present invention, even one worker can easily perform the assembling work. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a figure which shows the structure of 1st Embodiment of the elevator hoisting machine check stand which concerns on this invention. It is a figure which shows the structure of the bracket with which 1st Embodiment of this invention shown in FIG. 1 was equipped. It is a figure which shows the structure of the flame | frame part with which 1st Embodiment of this invention shown in FIG. 1 was equipped. It is a figure which shows the structure of the support | pillar with which 1st Embodiment of this invention shown in FIG. 1 was equipped. It is an exploded view explaining the structure of the signal output apparatus and attachment prevention apparatus which are attached to a bracket when the maintenance inspection of the hoisting machine in 1st Embodiment of this invention is not performed. FIG. 6 is an assembled perspective view of the signal output device and the attachment prevention device shown in FIG. 5. FIG. 6 is an assembly side view of the signal output device and the attachment prevention device shown in FIG. 5. It is a figure explaining the assembly operation | work of the winding machine inspection stand which concerns on 1st Embodiment of this invention, and is a figure explaining the procedure which attaches a flame | frame part to a bracket especially. It is a figure explaining the assembly operation | work of the winding machine inspection stand which concerns on 1st Embodiment of this invention, and is a figure explaining the procedure which fixes a frame part to a bracket and attaches a support | pillar to a frame part especially. It is a figure explaining the assembly operation | work of the winding machine inspection stand which concerns on 1st Embodiment of this invention, and is a figure explaining the procedure which attaches a step stand to a flame | frame part especially. It is a figure which shows the structure of the support | pillar of 2nd Embodiment of the elevator hoisting machine check stand which concerns on this invention. It is a figure which shows the structure of the upper support | pillar with which 2nd Embodiment of this invention shown in FIG. 11 was equipped. It is a figure which shows the structure of the principal part of the lower support | pillar with which 2nd Embodiment of this invention shown in FIG. 11 was equipped. It is a figure which shows the structure of the bracket of 3rd Embodiment of the elevator hoisting machine check stand which concerns on this invention.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the elevator hoisting machine check stand which concerns on this invention is demonstrated based on figures. In the following description, the direction in which the operator views the hoisting machine 1 at the front position facing the hoisting machine 1 shown in FIG.

[First Embodiment]
In the first embodiment of the elevator hoisting machine inspection table according to the present invention, as shown in FIG. 1, the elevator 1 includes the hoisting machine 1 disposed in the hoistway 2 via the base 3. It is provided when performing maintenance inspections. Although not shown, for example, the elevator includes a riding car disposed in the hoistway 2 and a counterweight suspended in the hoistway via the main car and the riding car. It is wound around the machine 1.

  Further, the elevator includes a control panel (not shown) that controls the driving of the hoisting machine 1, and the control panel is provided in a pit below the hoistway 2. Under the control of the control panel, the hoisting machine 1 is driven and the sheave (not shown) of the hoisting machine 1 rotates, so that the car is relatively relative to the counterweight according to the rotation direction of the sheave. The hoistway 2 is moved up and down. Further, the elevator includes, for example, a signal output device to be described later that outputs a signal to the control panel, and the control panel can drive the hoist 1 when a signal is output from the signal output device. When the signal is not output from, control is performed so that the hoisting machine 1 cannot be driven.

  In the first embodiment of the present invention, the base 3 is installed on the wall surface of the pit of the hoistway 2 so that the operator can maintain and inspect the hoisting machine 1 in the pit of the hoistway 2. The base 3 is, for example, a pair of vertical frames 3a that are arranged on the wall surface of the pit, with the longitudinal direction arranged in the vertical direction and spaced apart at the same interval as the horizontal width (width in the left-right direction) of the hoisting machine 1. Both ends are composed of an L-shaped upper frame (not shown) and a lower frame 3c attached to the rear surfaces of the upper and lower ends of the pair of vertical frames 3a. And the hoisting machine 1 is being fixed to the base 3 by fixing the member 3b which is a part of the hoisting machine 1 to the vertical frame 3a.

  For example, the lower frame 3c is arranged in a vertical plane, and is arranged in a horizontal plane with a vertical lower frame piece 3c1 fixed with a bolt 30 in a state where both ends in the left-right direction are in contact with the lower ends of the pair of vertical frames 3. The horizontal lower frame piece 3c2 is provided so as to protrude rearward from the lower end of the vertical lower frame piece 3c1.

  The first embodiment of the present invention supports a bracket 4 provided on the base 3 so as to protrude upward, a frame portion 5 having one end attached to the bracket 4, and the other end of the frame portion 5. A support column 7 that keeps the frame portion 5 horizontal and a platform 8 placed on the frame portion 5 are provided. In the first embodiment of the present invention, as shown in FIG. 8, for example, bolts 20 and nuts 21 are used to fix the bracket 4 to the lower frame 3c of the base 3, and the horizontal lower frame piece 3c2 will be described later. A through hole 3c2a through which the shaft portion 20b of the bolt 20 is inserted is formed in a portion of the bracket 4 that faces the through hole 41 of the horizontal bracket piece 4b.

  For example, as shown in FIG. 2, the bracket 4 is arranged in a vertical plane, the vertical bracket piece 4a is arranged in the horizontal direction in the longitudinal direction, and is arranged in a horizontal plane, and forward from the lower end of the vertical bracket piece 4a. And a horizontal bracket piece 4b provided so as to protrude. In the first embodiment of the present invention, the vertical bracket piece 4a and the horizontal bracket piece 4b of the bracket 4 are formed, for example, by bending one flat plate. Therefore, the bracket 4 has an L shape having a bent portion 43 at a connection portion between the vertical bracket piece 4a and the horizontal bracket piece 4b.

  Further, the horizontal bracket piece 4b has a through hole 41 that is formed symmetrically with respect to the central portion and through which the shaft portion 20b of the bolt 20 is inserted. As shown in FIG. 8, the shaft portion 20b of the bolt 20 is seen from above with the horizontal bracket piece 4b placed on the horizontal lower frame piece 3c2 so that the bracket 4 and the lower frame 3c face each other. The nut 21 is screwed into the protruding shaft portion 20b from below through the through holes 41 and 3c2a of the piece 4b and the horizontal lower frame piece 3c2.

  For example, as shown in FIG. 3, the frame portion 5 has a pair of L-shaped support frames 51 that are spaced apart from each other and are arranged in the longitudinal direction along the front-rear direction and that support the platform 8. Each of these support frames 51 is arranged in a horizontal plane and is arranged above the bracket 4 and a horizontal support frame piece 51a, is arranged in a vertical plane, and extends downward from the left and right outer ends of the horizontal support frame piece 51a. The vertical support frame piece 51b is provided so as to protrude in the horizontal direction, and the protrusion 51c protrudes in the left-right direction on the outer surface of the vertical support frame piece 51b.

  The frame portion 5 has a hook portion 52 provided at one end and hooked to the bracket 4. The hook portion 52 includes, for example, an L-shaped connecting member that connects the front end portions of the pair of support frames 51. The connecting member is disposed in a horizontal plane, and the left and right ends are horizontally supported by the pair of support frames 51. A horizontal hook piece 52a attached by welding, for example, to the lower surface of the front end portion of the frame piece 51a, and a vertical hook piece 52b disposed in the vertical plane so as to protrude downward from the front end of the horizontal hook piece 52a. It consists of and. The horizontal hook piece 52a and the vertical hook piece 52b are arranged such that the longitudinal direction is along the left-right direction.

  Furthermore, 1st Embodiment of this invention is provided with the fixing | fixed part which fixes the bracket 4 and the flame | frame part 5, As this fixing | fixed part is shown in FIG. 8, FIG. 9, a bolt 9 having a male screw formed on the shaft portion 9 b as shown in FIG. 9, and a through hole 42 (see FIG. 2) that is drilled in the bracket 4 and through which the shaft portion 9 b of the bolt 9 is inserted. It includes a female screw 54 (see FIG. 3) provided on the vertical hook piece 52 b of the hook portion 52 and screwed into the male screw of the bolt 9. The through hole 42 is located at the center of the vertical bracket piece 4a of the bracket 4, for example.

  Moreover, the frame part 5 has the spacer 55 provided in the surface on the side facing the vertical bracket piece 4a of the bracket 4 among both surfaces of the vertical hook piece 52b (refer FIG. 8, FIG. 9). The spacer 55 has a cylindrical shape in which, for example, the inner diameter is set larger than the diameter of the valley of the female screw 54 formed in the vertical hook piece 52 b, and the axis is arranged so as to overlap the axis of the female screw 54. . The frame portion 5 is provided with an insertion portion 53 into which the upper end of the support column 7 is inserted into one end (rear end) opposite to the frame portion 52 of both ends of each support frame 51 (FIGS. 3 and 3). 9). Note that support pieces 57 that support the platform 8 and restrict movement in the front-rear direction are provided on both front and rear ends on each horizontal support frame piece 51a.

  Moreover, in 1st Embodiment of this invention, the support | pillar 7 is inserted so that a longitudinal direction may be arrange | positioned in a perpendicular direction as shown in FIG. 4, for example, and an upper end may be inserted in each insertion part 53 of the frame part 5. FIG. A pair of vertical columns 71 spaced apart at the same interval as the interval between the portions 53, an upper horizontal beam 72 a that connects the upper parts of these vertical columns 71, and a lower horizontal beam 72 b that connects the lower parts of the vertical columns 71. And a thick plate 73 attached to the lower end of each vertical column 71 and having a screw hole (not shown) drilled in the center thereof, and a jack bolt 74 inserted into the screw hole of the thick plate 73. ing.

  The jack bolt 74 has a length that protrudes downward from the thick plate 73 by adjusting the degree of insertion into the screw hole of the thick plate 73. Further, for example, as shown in FIG. 10, one end of the column 7 is rotatably provided on the left and right sides of the pair of vertical columns 71, and the other end is engaged with the protrusion 51 c of each support frame 51 of the frame unit 5. It has a pair of brace 78 formed with a matching daruma-shaped engagement hole 78a.

  For example, when the struts 7 are erected on the floor surface 6, the lengths of the braces 78 are such that the engagement holes 78 a of the braces 78 engage with the protrusions 51 c of the support frames 51 of the frame portion 5. The frame portion 5 is set to be fixed vertically. For example, the step 8 is a rectangular parallelepiped whose length in the front-rear direction is set to a size that is interposed between the support pieces 57 and whose width in the left-right direction is set larger than the width in the left-right direction of the frame portion 5. It consists of a board.

  In the first embodiment of the present invention, the signal output device described above includes, for example, a cable 17 having one end connected to the control panel as shown in FIGS. 5 to 7 and a connector plug provided at the other end of the cable 17. 18 and a connector cap 16 to which the connector plug 18 is connected and outputs a signal to the control panel as shown by an arrow K (see FIG. 5). Moreover, 1st Embodiment of this invention is provided with the attachment prevention apparatus which prevents the flame | frame part 5 from being attached to the bracket 4 in the state in which the signal was output from the signal output apparatus to the control panel. This attachment prevention device is provided when the hoisting machine 1 is not maintained and inspected.

  Specifically, this attachment prevention device has a connector cap position fixing portion that is detachably attached to, for example, a hook portion of the frame portion 5 of the bracket 4 and fixes the position of the connector cap 16 with respect to the bracket 4. doing. The connector cap position fixing portion is attached between the bracket 4 and the lower frame 3c of the base 3 with the connector cap 16 attached as shown by an arrow J (see FIG. 5), for example, with the opening side facing downward. The U-shaped connector cap mounting bracket 15 and a cable housing portion for partially housing the cable 17 inside the connector cap mounting bracket 15.

  The connector cap mounting bracket 15 is disposed in a horizontal plane, the horizontal connector cap mounting bracket piece 15a on which the connector cap 16 is mounted on the upper surface, and the horizontal connector cap mounting bracket piece 15a disposed from the front and rear ends of the horizontal connector cap mounting bracket piece 15a. It is comprised from a pair of vertical connector cap attachment bracket piece 15b which protruded below. A through hole 15b1 through which the shaft portion 9b of the bolt 9 is inserted is formed on the vertical bracket 4a side (rear side) of the bracket 4 among the pair of vertical connector cap mounting bracket pieces 15b.

  In the first embodiment of the present invention, as shown by arrows H and G (see FIG. 5), the shaft portion 9b of the bolt 9 penetrates the through hole 42 of the bracket 4 and the rear vertical connector cap mounting bracket piece 15b from the rear. The connector cap mounting bracket 15 is fixed to the vertical bracket piece 4a of the bracket 4 by tightening the nut 19 that has been welded and fixed in advance so that the axis line overlaps the shaft tip of the through hole 15b1 while being inserted into the hole 15b1. ing. Further, a cable insertion hole 151 through which the cable 17 is inserted from the inside to the connector cap 16 side is formed in the vicinity of the mounting portion of the connector cap 16 of the horizontal connector cap mounting bracket piece 15a. In addition, the connection part with the connector plug 18 of the connector cap 16 is orient | assigned to the cable penetration hole 151 side.

  On the other hand, the cable housing portion includes an L-shaped cable fixing bracket 14 for fixing the cable 17 and a fastening portion for fastening the cable 17 to the cable fixing bracket 14. The cable fixing bracket 14 is disposed in a horizontal plane, for example, and is attached to the horizontal cable fixing bracket piece 14a fixed to the upper surface of the horizontal bracket piece 4b of the bracket 4 with a bolt or the like (not shown) and an arrow F (see FIG. 5). As shown in the figure, it is arranged in the vertical plane so as to face the vertical bracket piece 4a of the bracket 4 and the vertical lower frame piece 3c1 of the base 3, and protrudes upward from the rear end of the horizontal cable fixing bracket piece 14a so that the tip is a cable insertion hole. 151 and a vertical cable fixing bracket piece 14b inserted through 151.

  As shown in FIG. 7, the tightening portion is formed in, for example, a binding band 142 for binding the cable 17 and the vertical cable fixing bracket piece 14 b, and a vertical cable fixing bracket piece 14 b as shown in FIG. 5. It consists of a binding band insertion hole 141 to be inserted. In the first embodiment of the present invention, the cable 17 is set to the shortest length in which the connector plug 18 is connected to the connector cap 16 in a state where the position of the connector cap 16 is fixed by the connector cap mounting bracket 15 described above. ing.

  Next, the assembly work of the hoisting machine inspection table according to the first embodiment of the present invention will be described in detail with reference to FIGS.

  In the first embodiment of the present invention, when an operator who performs maintenance and inspection of the hoist 1 enters the pit of the hoistway 2 and removes the connector plug 18 from the connector cap 16, the operation of the elevator on the electric circuit is performed. Since the relay for switching the stop is turned OFF and the control panel controls the hoisting machine 1 so as not to be driven, the car cannot travel. Next, the operator removes the bolt 9 fastened to the nut 19 fixed to the connector cap attachment bracket 15 by welding, and removes the connector cap attachment bracket 15 from the vertical bracket piece 4 a of the bracket 4.

  Next, as shown by an arrow A in FIG. 8, the worker hooks the hook portion 52 of the frame portion 5 on the bracket 4 that is always fixed to the lower frame 3 c of the base 3. At this time, the spacer 55 of the hook portion 52 contacts the front surface of the vertical bracket piece 4 a of the bracket 4, and the tip 56 of the vertical hook piece 52 b of the hook portion 52 is placed on the horizontal portion 44 on the upper surface of the horizontal bracket piece 4 b of the bracket 4. Abut.

  Next, as shown by an arrow B in FIG. 9, the operator hooks the shaft portion 9 b of the bolt 9 from the rear with the hook portion 52 hooked on the bracket 4, and the through hole 42 of the vertical bracket piece 4 a of the bracket 4. And the male screw of the bolt 9 is screwed into the female screw 54 of the hook portion 52. When the operator lifts the rear part of the frame part 5 with one hand, the frame part 5 is bent and the rear part is slightly tilted upward from the horizontal state.

  While maintaining this state, the operator inserts the upper end of the support column 7 into the insertion portion 53 of the frame portion 5 as shown by the arrow C with the other hand, and causes the jack bolt 74 to stand upright on the floor surface 6. The frame portion 5 is supported by the support column 7 and the posture of the frame portion 5 is kept horizontal. The operator presets the length of the jack bolt 74 that protrudes downward from the thick plate 73 of the column 7 so that the frame 5 and the column 7 are vertical when the column 7 is installed.

  Next, the operator rotates the left and right braces 78 hanging in the vertical direction as shown by the arrow D in FIG. 10 to the position of the frame portion 5 around the fulcrum 75 located at the upper end portion. The 78 engagement holes 78 a are engaged with the protrusions 51 c of the support frame 51 of the frame portion 5. Then, as shown by an arrow E, the operator places the step 8 between the support pieces 57 of the frame portion 5 from above and places them on the respective support frames 51 of the frame portion 5 to implement the first embodiment of the present invention. The assembling work of the hoisting machine inspection table according to the embodiment is completed. For example, the operator uses a trap (not shown) when moving up and down on the platform 8. Further, the removal work of the hoisting machine inspection table according to the first embodiment of the present invention is performed by reversing the procedure of the assembly work described above, whereby only the bracket 4 that is always fixed is attached to the lower frame 3c of the base 3. Of the remaining parts that have been removed and removed, the frame 5, the platform 8, and the bolts 9 become a single item, and the others (the column 7, the brace 78, and the bolts associated with them mentioned above, etc.) are assembled. Stored in the pit.

  According to the first embodiment of the present invention configured as above, the hook portion 52 at the front end of the frame portion 5 is hooked on the bracket 4, and the step 8 is supported with the rear end of the frame portion 5 supported by the support column 7. Since the assembly type is placed on the frame unit 5, when the operator performs maintenance and inspection of the hoisting machine 1, the hoisting machine inspection table according to the first embodiment of the present invention should be quickly installed in the pit. Can do. And when the operator does not perform the maintenance and inspection of the hoisting machine 1, the hoisting machine inspection table is disassembled without securing the storage space for the hoisting machine inspection table in a predetermined place in the pit. It can be stored in a vacant space in the pit. Accordingly, the storage location is not limited in the first embodiment of the present invention, so the degree of freedom of the storage location can be increased, and the versatility is excellent.

  Furthermore, in 1st Embodiment of this invention, the length which the jack bolt 74 inserted in the thick board 73 of the support | pillar 7 protrudes downward from the thick board 73 can be freely set in the range of the length of the jack bolt 4. FIG. Therefore, the overall length of the support column 7 can be finely adjusted. As a result, even if the equipment arrangement of the hoisting machine 1 and the like in the pit differs depending on the use and specifications of the elevator, it is not necessary to prepare a hoisting machine inspection table suitable for each equipment arrangement. This saves time and labor for arrangements and production, and reduces costs.

  Further, in the first embodiment of the present invention, the shaft portion 9b of the bolt 9 is inserted from the rear into the spacer 55 and the through hole 42 of the vertical bracket piece 4a of the bracket 4 with the hook portion 52 hooked on the bracket 4. By fixing the male screw of the bolt 9 to the female screw 54 of the hook portion 52 and fixing the bracket 4 and the frame portion 5 with the bolt 9, the frame portion 5 is firmly attached to the base 3 via the bracket 4. Can do.

  In particular, the bolt 9 is not responsible for the reaction force when an operator rides on the platform 8, and prevents an unstable state in which the frame portion 5 shifts to the left and right. Stability can be improved. Furthermore, when the hook portion 52 of the frame portion 5 is caught by the bracket 4, the through hole 42 of the vertical bracket piece 4 a of the bracket 4 can be easily positioned on the female screw 54 formed on the vertical hook piece 52 b of the hook portion 52. The fixing work between the bracket 4 and the frame portion 5 can be easily performed.

  Further, according to the first embodiment of the present invention, when an operator performs maintenance and inspection of the hoisting machine 1, the connector plug 18 is first removed from the connector cap 16, thereby switching between operation and stop of the elevator on the electric circuit. The relay is turned OFF, and the control panel controls the hoisting machine 1 so that it cannot be driven. Therefore, since the car does not travel during the maintenance and inspection work of the worker, the safety of the worker can be ensured.

  In the first embodiment of the present invention, the connector cap mounting bracket 15 is fixed to the vertical bracket piece 4 a of the bracket 4, and the hook portion of the frame portion 5 is used when the operator performs maintenance and inspection of the hoisting machine 1. Even if the hook 52 is to be hooked, the tip 56 of the hook portion 52 comes into contact with the horizontal connector cap mounting bracket 15 a of the connector cap mounting bracket 15, so that it is necessary to remove the connector cap mounting bracket 15 from the bracket 4.

  Here, the connector cap 16 to which the connector plug 18 at the tip of the cable 17 is connected is attached to the connector cap mounting bracket 15, and the cable 17 is partially accommodated in the connector cap mounting bracket 15 through the cable insertion hole 151. In this state, the connector plug 18 is set to the shortest length to be connected to the connector cap 16, so that the operator first removes the connector plug 18 from the connector cap 16 in order to remove the connector cap mounting bracket 15. It must be made.

  Therefore, when the hook portion 52 of the frame portion 5 is properly hooked on the bracket 4, the connector plug 18 is removed from the connector cap 16, so that the control panel controls the hoisting machine 1 so that it cannot be driven. Thus, the car can be stopped reliably. Thus, the connector cap mounting bracket 15 functions not only as a device for preventing the frame portion 5 from being attached to the bracket 4 but also as a safety device by setting the length of the cable 17 connected to the connector cap 16. Therefore, it is possible to provide a hoisting machine inspection table having high performance. Furthermore, in the first embodiment of the present invention, when the cable 17 is partially accommodated in the connector cap mounting bracket 15, the cable 17 and other members are bundled with the cable fixing bracket 14 by the binding band 142. Can be prevented, so that the cable 17 can be prevented from being damaged.

  Further, in the first embodiment of the present invention, when the connector cap mounting bracket 15 is mounted on the vertical bracket piece 4a of the bracket 4, the bolt 9 that fixes the bracket 4 and the frame portion 5 is used. When the maintenance inspection is not performed, the shaft portion 9b of the bolt 9 is inserted from the rear into the through hole 42 of the bracket 4 and the through hole 15b1 of the rear vertical connector cap mounting bracket piece 15b, and the nut 19 is inserted from the front into the bolt 9. The bolt 9 can be prevented from being lost by being screwed onto the shaft portion 9b. As described above, the bolt 9 is effectively used to reduce the number of parts of the hoist inspection table according to the first embodiment of the present invention, and the bracket 4 and the connector cap mounting bracket 15 are used as a storage place for the bolt 9. And can ensure excellent convenience.

  Moreover, since 1st Embodiment of this invention is provided with the spacer 55 in the surface on the side facing the vertical bracket piece 4a of the bracket 4 among both surfaces of the vertical hook piece 52b of the hook part 52 in the frame part 5, When the operator hooks the hook portion 52 on the bracket 4, the spacer 55 comes into contact with the front surface of the vertical bracket piece 4 a of the bracket 4, so that the tip 56 of the vertical hook piece 52 b of the hook portion 52 is bent to the bent portion 43 of the bracket 4. Can be avoided. Therefore, the tip 56 of the vertical hook piece 52 b of the hook portion 52 abuts on the horizontal portion 44 on the upper surface of the horizontal bracket piece 4 b of the bracket 4, and the reaction force when the operator gets on the platform 8 is applied to the vertical force of the hook portion 52. Since it can receive at the front-end | tip 56 of the hook piece 52b, it can prevent that a big stress generate | occur | produces in the volt | bolt 9 which fixes the bracket 4 and the flame | frame part 5. FIG. Thereby, the volt | bolt 9 can be prolonged and the frequency of the replacement | exchange operation | work of the volt | bolt 9 can be reduced. Even if the bolt 9 is broken, the hook portion 52 of the frame portion 5 is kept in a state of being hooked on the bracket 4, so that the safety of the operator can be ensured.

  In the first embodiment of the present invention, when the worker hooks the hook portion 52 of the frame portion 5 to the bracket 4 in the assembling work, the rear portion is lowered with the frame portion 5 as a fulcrum at the contact portion with the bracket 4 due to its own weight. A moment to rotate is generated, and the frame portion 5 is held in a posture tilted rearward and downward from the horizontal state. Thereby, since an operator can leave | separate temporarily from the circumference | surroundings of the frame part 5, before attaching the support | pillar 7 to the frame part 5, high convenience can be acquired. Further, since the support column 7 is integrally formed by connecting a pair of vertical columns 71 with an upper horizontal beam 72a and a lower horizontal beam 72b, the operator can attach the support column 7 to the frame unit 5 once. Each vertical pillar 71 can be simultaneously inserted into the insertion part 53 of the frame part 5 by operation. Thereby, the man-hour of an assembly work can be reduced and an assembly work can be easily performed even by one worker.

  Further, in the first embodiment of the present invention, braces 78 are rotatably provided on the left and right outer sides of the vertical columns 71 of the columns 7, and the braces 78 so that the columns 7 and the frame portion 5 are vertical. , The position of the engagement piece 78a of the brace 78, and the position of the protrusion 51c of the frame part 5 are set. Therefore, the operator rotates the braces 78 of the vertical columns 71 and engages the engagement holes 78a of the brace 78 with the protrusions 51c of the frame portion 5 so that the column 7 is perpendicular to the frame portion 5. In addition to guaranteeing that the frame portion 5 is maintained, the frame portion 5 can be maintained in a stable state even when the operator gets on the platform 8, so that the safety of the operator can be further improved. In the first embodiment of the present invention, since the operator uses a trap when moving up and down on the platform 8, it is possible to suppress an increase in cost.

In the present embodiment, the signal output device includes a cable 17 having one end connected to the control panel, a connector plug 18 provided at the other end of the cable 17, and a connector plug 18 connected to the signal to the control panel. An example in which the output connector cap 16 is configured has been described. Such structures can be used an output device capable signals to connector cap 16 side, which only is not limited, for example, the signal output itself performs control panel itself, the connector plug 18 and connector Connecting the cap 16 constitutes a loop circuit that returns from the control panel to the control panel through the cable 17, the connector plug 18, the connector cap 16, the connector plug 18, and the cable 17, and the connector plug 18 and the connector cap 16 are connected to each other. When disconnected, the loop circuit may be disconnected so that the signal cannot be detected, thereby detecting the disconnection of the connector plug 18 and the connector cap 16. With such a configuration, high safety can be ensured while realizing a detection circuit at low cost.

[Second Embodiment]
FIG. 11 is a view showing the structure of the support column of the second embodiment of the elevator hoisting machine inspection table according to the present invention, and FIG. 12 is the structure of the upper support column provided in the second embodiment of the present invention shown in FIG. FIGS. 13A and 13B are views showing the configuration of the main part of the lower support provided in the second embodiment of the present invention shown in FIG.

  The second embodiment of the present invention differs from the first embodiment described above in that the first embodiment includes a pair of vertical columns 71, an upper horizontal beam 72a, a lower horizontal beam 72b, a thick plate 73, and a jack bolt 74. On the other hand, in the second embodiment, as shown in FIG. 11, the column 110 is arranged on the upper side, and the upper column 11 in which a hollow portion is formed in the longitudinal direction inside, and the upper column 11 A part is inserted into the hollow portion of the support column 11, a lower support column 12 disposed below the upper support column 11, and a support column fixing in which the lower support column 12 is slid with respect to the upper support column 11. Part.

  Specifically, the upper column 11 is arranged in the vertical direction in the vertical direction as shown in FIG. 12, for example, as in the column 7 in the first embodiment, and the upper end is connected to each insertion portion 53 of the frame unit 5. A pair of upper vertical columns 111 spaced apart at the same interval as the insertion portion 53, an upper horizontal beam 112a connecting the upper portions of these vertical columns 111, and a lower portion of each vertical column 111 And a lower horizontal rail 112b for connecting the two. Each upper vertical column 111 is made of, for example, a hollow tube formed in a cylindrical shape.

  Further, for example, as shown in FIGS. 11 and 13, the lower support column 12 is separated at the same interval as the interval between the upper vertical columns 111 so that the upper end is inserted into the hollow portion of each upper vertical column 111 of the upper support column 11. A pair of lower vertical columns 115, a thick plate 113 attached to the lower end of each vertical column 115 and having a screw hole (not shown) drilled in the center, and a screw of each thick plate 113 It is comprised from the jack volt | bolt 114 inserted in the hole. Each lower vertical column 115 is formed of a cylindrical hollow tube whose outer periphery is set to a size slightly smaller than the hollow portion of each vertical column 111 of the upper column 11, for example.

  As shown in FIG. 12, the column fixing portion is, for example, a pair of through-holes that are vertically spaced at predetermined pitch intervals 11P on both left and right sides of the lower end portion of each vertical column 111 of the upper column 11. 116, four bolts 13 and nuts (not shown) inserted through these through-holes 116 as shown in FIG. 11, and left and right of each vertical column 115 of the lower support column 12 as shown in FIGS. A plurality of through-holes 121 are formed on both sides of the first and second holes spaced apart in the vertical direction at the same interval as the pitch interval 11P. Accordingly, in the second embodiment of the present invention, the pair of upper and lower through holes 116 of the left and right vertical columns 111 in the upper column 11 is replaced with any one of the plurality of through holes 121 of the left and right vertical columns 115 of the lower column 12. The upper column 11 and the lower column 12 are connected by inserting the shafts of the four bolts 13 and screwing the nuts in a state where the two through holes are adjacent to each other. . The length of each vertical column 115 of the lower support column 12 is set to be larger than the length of the jack bolt 114. Other configurations are the same as those in the first embodiment, and the same reference numerals are given to portions that overlap or correspond to those in the first embodiment.

According to the second embodiment of the present invention configured as described above, the same effects as those of the first embodiment described above can be obtained, and the through holes of the vertical columns 115 of the lower column 12 through which the shaft portion of the bolt 13 is inserted. Is arbitrarily selected, the length of the vertical column 115 of the lower column 12 inserted into the vertical column 111 of the upper column 11 is projected downward from the lower end of the upper column 11 to the length of the vertical column 115. Since it can be set freely in the range, the overall length of the support 110 can be adjusted greatly. As a result, even if the depth of the local pit is significantly different from the original schedule, the length of the entire support 110 can be greatly changed according to the depth of the pit. This eliminates the need for preparation and saves time and labor for arranging and manufacturing the hoisting machine inspection table.

[Third Embodiment]
FIG. 14: is a figure which shows the structure of the bracket of 3rd Embodiment of the elevator hoisting machine check stand which concerns on this invention.

  The third embodiment of the present invention is different from the first embodiment described above in the first embodiment, in which the fixing portion is formed in the center portion of the vertical bracket piece 4a of the bracket 4 and the shaft portion 9b of the bolt 9 is provided. For example, as shown in FIG. 14, the fixing portion is provided separately along the longitudinal direction of the vertical bracket piece 4 a of the bracket 4. And includes a plurality of through holes 42 through which the shaft portion 9b of the bolt 9 is inserted. In the third embodiment of the present invention, the number of through holes 42 is five, for example, and is arranged symmetrically. Other configurations are the same as those in the first embodiment, and the same reference numerals are given to portions that overlap or correspond to those in the first embodiment.

  According to the third embodiment of the present invention configured as described above, the same effect as that of the first embodiment described above can be obtained, and the through hole of the vertical bracket piece 4a of the bracket 4 through which the shaft portion 9b of the bolt 9 is inserted. By arbitrarily selecting 42, it is possible to change the installation position of the step 8 in the left-right direction toward the inspection target. Therefore, for example, even when there is a device in the vicinity of one of the through holes 42 of the bracket 4 and it is difficult to install the step 8, the step 9 is shifted in the left-right direction so that the shaft portion 9 b of the bolt 9 is moved to the other through hole 42. By inserting it, it is possible to take an appropriate action according to the situation of the local equipment arrangement. Thereby, since the common platform 8 can be installed in the frame part 5 irrespective of the arrangement of the equipment in the pit, versatility can be further improved.

  In addition, this embodiment mentioned above was described in detail in order to demonstrate this invention easily, and is not necessarily limited to what is provided with all the demonstrated structures. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.

DESCRIPTION OF SYMBOLS 1 Hoisting machine 2 Hoistway 3 Base 3c Lower frame 3c1 Vertical lower frame piece 3c2 Horizontal lower frame piece 3c2a Through-hole 4 Bracket 4a Vertical bracket piece 4b Horizontal bracket piece 5 Frame part 7 Post column 8 Step 9 Bolt 9b Shaft part 11 Upper column 12 Lower support column 13 Bolt 14 Cable fixing bracket 14a Horizontal cable fixing bracket piece 14b Vertical cable fixing bracket piece 15 Connector cap mounting bracket 15a Horizontal connector cap mounting bracket piece 15b Vertical connector cap mounting bracket piece 16 Connector cap 17 Cable 18 Connector plug 41, 42 Through-hole 51 Support frame 51a Horizontal support frame piece 51b Vertical support frame piece 51c Projection part 52 Hook part 52a Horizontal hook piece 52b Vertical hook piece 53 Insertion part 5 Female thread 55 Spacer 57 Support piece 71 Vertical column 72a Upper horizontal beam 72b Lower horizontal beam 73 Thick plate 74 Jack bolt 78 Bracing 78a Engagement hole 110 Post 111 Upper vertical column 112a Upper horizontal beam 112b Lower horizontal beam 113 Thick plate 114 Jack bolt 115 Lower Vertical Column 121 Through Hole 141 Binding Band Insertion Hole 142 Binding Band 151 Cable Insertion Hole

Claims (5)

In an elevator equipped with a hoisting machine arranged via a base in a hoistway, provided when performing the maintenance inspection of the hoisting machine,
A bracket provided on the base so as to protrude upward;
A frame with one end attached to the bracket;
A column that supports the other end of the frame portion and keeps the frame portion horizontal,
And a platform resting on the frame part,
The frame part is
Provided on the one end, it has a hooked hook to the bracket,
The elevator is
A control panel provided in the hoistway to control the driving of the hoisting machine;
A signal output device for outputting a signal to the control panel;
An attachment prevention device that prevents the frame portion from being attached to the bracket in a state where the signal is output from the signal output device to the control panel;
The control panel can drive the hoisting machine when the signal is output from the signal output device, and cannot drive the hoisting machine when the signal is not output from the signal output device. Control
The signal output device is:
A cable with one end connected to this control panel;
A connector plug provided at the other end of the cable;
A connector cap that enables the output of the signal to the control panel by connecting the connector plug;
The attachment prevention device is
Removably attached to the hook portion of the frame portion of the bracket, and having a connector cap position fixing portion that fixes the position of the connector cap with respect to the bracket,
The elevator hoisting machine characterized in that the cable is set to the shortest length in which the connector plug is connected to the connector cap in a state where the position of the connector cap is fixed by the connector cap position fixing portion. Inspection table. In the elevator hoisting machine check stand according to claim 1,
An elevator hoisting machine inspection table comprising a fixing part for fixing the bracket and the frame part. In the elevator hoisting machine check stand according to claim 2,
The fixing part is
A bolt in which the bracket and the hook portion are connected, and a male screw is formed on the shaft portion,
A through hole formed in the bracket and through which the shaft of the bolt is inserted;
An elevator hoisting machine inspection table, comprising: a female screw that is provided on the hook portion and that engages with the male screw of the bolt. In the elevator hoisting machine check stand according to claim 1,
The column is
An upper column that is disposed on the upper side and in which a hollow portion is formed along the longitudinal direction;
A part of the upper column is inserted into the hollow portion, and the lower column arranged below the upper column,
An elevator hoisting machine inspection table, comprising: a column fixing unit that fixes the lower column in a state of sliding the lower column with respect to the upper column. In the assembly method of assembling the elevator hoisting machine check stand according to any one of claims 1 to 4,
After removing the attachment prevention device, and then hooking the hook portion of the frame portion to the bracket and attaching one end of the frame portion to the bracket, the post is installed at the other end of the frame portion, A method for assembling an elevator hoisting machine inspection stand , wherein the step is placed on the frame portion .

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