JP2002223994A - Pit cleaner for elevator shaft and cleaning method using cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator shaft pit cleaner by which a pit cleaning work is safely performed and also a flexible hose 12 and an extension pipe 14 are hardly clogged and to provide its cleaning method. SOLUTION: A sucking body 15 is fitted to the extension pipe 14 which arrives at a pit floor 3 from the lowest floor platform 6, dust 5 on the pit floor 3 is sucked from an opening 152 of the sucking body 15 and dust is collected into a vacuum cleaner body 11. When large-sized dust 4 is stuck to a casing 151 by intake from a nozzle 153 which is bored and arranged in the casing 151, intake from the nozzle 153 is maintain by covering the opening 152 after closing a shutter 18, the sucking body 15 is lifted while sticking dust 4 to the casing 151 and, then, dust 4 is collected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cleaning tool and a cleaning method for cleaning a pit floor of an elevator shaft.

[0002]

2. Description of the Related Art FIG. 12 is a side view showing cleaning of a pit by a conventional cleaning tool. That is, relatively large paper dust 4 and dust 5 that cannot be sucked by the suction body 65 are scattered on the pit floor 3. Conventionally, since the extension pipe 64 of the cleaning tool was short and small, first, the door 8 was opened at the lowest floor 6 to set the ladder 61 on the pit floor 3, and then the cleaning machine main body 62, the flexible hose 63, and the extension The pit floor 3 was cleaned by holding the pipe 64 and the suction body 65 and descending from the entrance 7 to the pit 2 with the ladder 61. The suction body 65 has an opening on the pit floor 3 side, through which the dusts 4 and 5 are sucked and collected in the main body 62.

[0003]

Since the conventional pit cleaning tool for elevator hoistway is constructed as described above, the cleaning tool must be carried to the pit floor 3 and the cleaning tool must be removed during the loading operation. There is a risk of falling into the pit 2 and damaging it. In addition, there is a risk that the worker 10 may fall onto the pit floor 3. Furthermore, the dusts 4 and 5 on the pit floor 3 are different and different from those in the home. For this reason, there is also a problem that the sucked dusts 4 and 5 are clogged in the flexible hose 63 and the extension pipe 64, and it takes a long time to remove the dust and the efficiency is low. Furthermore, large dust 4
In this case, even if the dust collection bag is housed in the dust collection bag in the main body 62, the dust collection bag is clogged, so that the dust collection bag must be frequently cleaned and it takes time. .

[0004] The present invention solves the above problems,
An object of the present invention is to provide a pit cleaning tool for an elevator hoistway and a method for cleaning the pit, in which a pit cleaning operation can be performed safely and a flexible hose and an extension pipe are not easily clogged.

[0005]

According to a first aspect of the present invention, there is provided a pit cleaning tool for an elevator shaft, wherein an extension pipe leading to a main body of the cleaning tool has a length reaching from a hand to a pit floor, and
A nozzle is provided in a casing which is connected to the other end of the extension pipe and forms an upper surface of a suction body for sucking and cleaning dust from the opening, and a shutter for opening and closing the opening is provided.

According to a second aspect of the present invention, there is provided a pit cleaning method using the pit cleaning tool according to the first aspect, wherein dust on the pit floor is sucked through an opening of the suction body to thereby clean the inside of the main body of the cleaning tool. When the dust is collected on the casing and the dust is sucked into the casing by the suction from the nozzle provided in the casing, the shutter is closed and the opening is covered to maintain the suction from the nozzle, and the suction is performed while the dust is sucked on the casing. The dust is collected by lifting the body.

According to a third aspect of the present invention, there is provided a pit cleaning tool for an elevator shaft according to the first aspect of the present invention.
The shutter is constituted by a plurality of reversibly rotatable blades, and the opening is opened and closed. The nozzle is drilled in the blade instead of drilling in the casing. After collecting and collecting the dust, the shutter is opened to suck small dust and collect the dust.

According to a fourth aspect of the present invention, there is provided an elevator hoistway pit cleaning tool according to the first aspect.
Instead of the shutter, a filter provided with a nozzle is stretched over the opening, so that dust sucked into the suction body and dust adhered to the suction body are selected.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 8 show:
Embodiment 1 Embodiment 1 of the present invention will be described. FIG. 1 shows Embodiment 1
1 is a hoistway, 2 is a pit, 3 is a pit floor, 4 is relatively large dust that cannot be sucked, such as paper waste, 5 is small dust that can be sucked,
Reference numeral 6 denotes the lowest floor hall, 7 denotes the entrance, 8 denotes a door that opens and closes the entrance 7, and 10 denotes a worker of the lowest floor 6.

Reference numeral 11 denotes a cleaner main body to which a fan, a control device, and the like are attached, sucks dust from an air inlet and stores it in a dust collecting bag, 12 denotes a flexible hose connected to the air inlet of the cleaner main body 11, and 13 denotes a flexible hose. A hand pipe connected to the other end of the flexible hose 12, a telescope type extension pipe 14 in which rods of different outer diameters are inserted in multiple stages so as to be able to advance and retreat, with one end connected to the hand pipe 13. The tip has a length that reaches the pit floor 3 of the elevator shaft 1 when descending from the lowest floor landing 6. 141 is a fixture for fixing each rod of the extension pipe 14 at the connection portion, 15 is a suction body connected to the other end of the extension pipe 14 and sucking dust on the pit floor 3 which is a cleaning surface. FIG.

FIG. 2 is a perspective view in which the extension pipe 14 and the suction body 15 are connected, and the same reference numerals as those in FIG.
Reference numeral 1 denotes an operation unit attached to a hand pipe 13;
The operation button 1 includes an operation button 132 for generating air by actuating the suction button 1, a stop button 133 for stopping the operation, an open button 134 for opening and closing a shutter 18 to open and close the opening of the suction body 15, and a close button 135 for closing the same. Reference numeral 151 denotes a casing that covers the cleaning surface, and that allows dust to be sucked in by the suction of the cleaner body 11. 153 is a casing 151
A large diameter dust 4 such as a paper dust is adsorbed to the casing 151 by the suction of the cleaner body 11 by a nozzle provided in the main body.

Reference numeral 16 denotes a joint pipe rotatably attached to the suction body 15 and the other end is detachably inserted into the extension pipe 14. Reference numeral 161 denotes an arc-shaped flange attached to an end of the joint pipe 16. Is an arc-shaped outer guide fixed to the casing 151 to guide the flange 161, and 17 is a bumper mounted on the entire periphery of the lower edge of the casing 151 to prevent the casing 151 from directly contacting the cleaning surface and being damaged. At the same time, the airtightness of the space covered by the casing 151 is maintained. Reference numeral 182 denotes a support shaft of a blade plate 181 constituting the shutter 18 described later. Reference numeral 19 denotes an actuator that rotates the blade plate 181 by operating the open button 134 and the close button 135 to open and close the shutter 18. The power to the actuator 19 is supplied by an electric wire implanted in the extension pipe 14.

FIG. 3 is a plan view of the suction body 15, and the same reference numerals as those in FIGS. 1 and 2 denote the same parts.
An actuator for opening and closing the shutter 18 in synchronization with the actuator 9.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIGS. 5 and 6 are sectional views taken along line VV of FIG. The same parts are shown. Reference numeral 152 denotes an opening of the casing 15 formed on the cleaning surface side, and reference numeral 163 denotes an arc-shaped inner guide opposed to the outer guide 162 with the slit 164 interposed therebetween.
6 of the extension pipe 1
4 can be moved back and forth by angles α and β.

Reference numeral 18 denotes a shutter for opening and closing the opening 152 of the casing 151. Reference numeral 181 denotes a blade plate constituting the shutter 18, which is supported by a support shaft 182 that penetrates the casing 15 and reversibly rotates to open and close the opening 152. Reference numeral 183 denotes a cutout portion of the blade plate 181, and reference numeral 184 denotes a pin provided across the cutout portion 183. Reference numeral 22 denotes a connector whose upper end is fixed to the rod 21 and which hangs down and whose lower end is rotatably engaged with the pin 184. The rod 21 is connected to the actuators 19 and 20.
The opening 152 is opened and closed by rotating the blade plate 181 in accordance with the horizontal movement driven by
6 shows a state in which the opening 152 is opened, and FIG. 6 shows a state in which the opening 152 is closed.

7 and 8 are bottom views of the suction body 15, and FIG. 7 shows a state where the shutter 18 has opened the opening 152.
FIG. 8 shows a state where the opening 152 is closed.

Next, the operation will be described. First, the door 8 of the lowest floor landing 6 is opened, and the flexible hose 12 is connected to the cleaner body 11.
After connecting the suction body 15 to the extension pipe 14 and further connecting the hand pipe 13, the suction body 15 is connected to the pit floor 3.
The extension pipe 14 is extended until it reaches the position shown in FIG.

The operation button 132 is pressed to operate the cleaner body 11, and the close button 135 is pressed to close the opening 152 with the shutter 18. That is, when the close button 135 is pressed, the actuators 19 and 20 are operated, and the rod 21 moves to the lower right in the drawing as shown by the arrow in FIG.
1 is rotated. As a result, the blade plate 181 becomes horizontal, the opening 152 is closed as shown in FIGS. 6 and 8, and the intake air flows in from the nozzle 153 of the casing 151.

First, coarse dust 4 such as paper debris scattered on the pit floor 3 is taken into the casing 1 by suction from the nozzle 151.
51. The opening 152 is closed by the shutter 18 to keep the intake air from the nozzle 151
The fixture 141 is relaxed in a state where the dust 4 is adsorbed on the suction pipe 1 while the extension pipe 14 is retracted as shown by reference numerals 4 ', 14', 15 'and 141' in FIG.
5 is lifted to collect the coarse dust 4.

When the collection of coarse dust 4 is completed, open button 1
The shutter 18 is opened by pressing 34. That is, the close button 134
Actuation of the actuators 19 and 20 by the depression of
As indicated by the arrow in FIG. 5, the rod 21 moves in the upper left direction in the drawing to rotate the blade plate 181. As a result, the blade plate 181 becomes vertical, the opening 152 is opened as shown in FIGS. 5 and 7, and the intake air also flows in from the opening 152.
The remaining small dust 5 is sucked in by the suction from the opening 152 and collected in the cleaner body 11.

When the dusts 4 and 5 have been absorbed,
After stopping the cleaner body 11 by pressing the stop button 133, the suction member 15 is pulled up while the fixture 141 is relaxed and the extension pipe 14 is retracted, and the door 8 is closed to close the pit 2
Cleaning ends. The cleaner body 11, the flexible hose 12, the hand pipe 13 and the extension pipe 14 are detached and stored separately.

According to the first embodiment, the worker 10
Can clean the pit floor 3 from the lowest floor landing 6,
There is no need to carry the vacuum cleaner into and out of the pit 2, so that the cleaning operation is easy, and there is little risk of the vacuum cleaner being dropped into the pit 2 and being damaged. Further, the worker 10 does not need to go down to the pit 2 with a ladder, which is safe. In particular, the dusts 4 and 5 on the pit floor 3 are mainly objects falling from gaps between the car and the sill. Therefore, even if an object falls during the work, it does not reach the worker 10 and is safe.

Further, the extension pipe 14 has a length that reaches from the lowest floor landing 6 to the pit floor 3. Therefore, when the dust 4 or 5 is clogged in the extension pipe 14, it is not easy to remove the dust. However, in the first embodiment, the opening 152 is closed by the shutter 18 to prevent the coarse dust 4 from being sucked. Therefore, the coarse dust 4 is collected in a state of being attached to the casing 151, and does not clog the extension pipe 14.

Embodiment 2 FIG. In the first embodiment, the nozzle 153 is provided in the casing 151. However, in the second embodiment, the nozzle is provided in a blade constituting a shutter. 9 and 10 show the second embodiment, in which the same reference numerals as those in FIGS. 1 to 8 indicate the same parts.

Reference numeral 25 denotes a suction body for sucking dust on the pit floor 3, reference numeral 251 denotes a casing for covering the cleaning surface to make it airtight, reference numeral 28 denotes a shutter for opening and closing an opening 252 of the casing 25, and reference numeral 281 denotes a wing plate constituting the shutter 28. so,
The opening 252 is opened and closed by being reversibly rotated by being supported by a support shaft 282 penetrating the casing 25. 284 is a wing plate 281
The nozzles provided in the nozzle plate 281 adsorb the coarse dust 4 such as paper dust on the blade plate 281 by the suction of the cleaner body 11. The opening and closing of the blade 281 by the actuators 19 and 20 are the same as in the first embodiment, and a description thereof will be omitted.

According to the second embodiment, the shutter 2
By opening and closing 8, the coarse dust 4 is collected in a state where it is attached to the blade 281, and is not sucked, so that the extension pipe 14 is not clogged. In addition, since the intake air is limited to the opening 252 of the casing 251 and has no detour, the intake power from the cleaner body 11 can be effectively used at the opening 252.

Embodiment 3 In Embodiments 1 and 2,
Although the opening 152 or 252 is opened and closed by the shutter 18 or 28, in the third embodiment, a filter provided with a nozzle is provided in the opening instead of the shutter. FIG. 11 shows the third embodiment.
1 to 8 denote the same parts.

Reference numeral 35 denotes a suction body for sucking dust on the pit floor 3, reference numeral 351 denotes a casing that covers a cleaning surface to be in an airtight state, reference numeral 38 denotes a filter stretched over an opening 352 of the casing 25, and reference numeral 381 denotes a filter provided in the filter 38. The opening is smaller than the inner diameter of the extension pipe 14. Nozzle 3
At 81, the dust 5 that does not block the extension pipe 14 passes, but the coarse dust 4 is adsorbed by the filter 38. By pulling up the suction body 35 through the extension pipe 14, the coarse dust 4 can be collected.

Also in the third embodiment, the coarse dust 4 is collected in a state of being attached to the filter 38 and is not sucked, so that the extension pipe 14 is not clogged. Further, since the shutter 18 or 28 is not employed, the cleaning tool can be simplified.

[0030]

Since the present invention is configured as described above, it has the following effects. According to the pit cleaning tool of the elevator hoistway according to claim 1, the extension pipe leading to the main body of the cleaning tool has a length that reaches from the hand to the pit floor, and is connected to the other end of the extension pipe to suck dust from the opening. A nozzle is provided in a casing forming the upper surface of the suction body, and a shutter for opening and closing the opening is provided. Therefore, when the opening is closed by the shutter, the coarse dust is collected in a state attached to the casing 151 and is not sucked into the extension pipe, so that the extension pipe is not clogged by the coarse dust.

According to a second aspect of the present invention, there is provided a pit cleaning method using the pit cleaning tool according to the first aspect, wherein dust on the pit floor is sucked from an opening of the suction body to thereby clean the inside of the main body of the cleaning tool. When the dust is collected on the casing and the dust is sucked into the casing by the suction from the nozzle provided in the casing, the shutter is closed and the opening is covered to maintain the suction from the nozzle, and the suction is performed while the dust is sucked on the casing. The dust is collected by lifting the body. Therefore, similarly to the first aspect, there is an effect that the extension pipe is not clogged by coarse dust.

According to a third aspect of the present invention, there is provided an elevator hoistway pit cleaning tool according to the first aspect.
The shutter is constituted by a plurality of reversibly rotatable blades, and the opening is opened and closed. The nozzle is drilled in the blade instead of drilling in the casing. After collecting and collecting the dust, the shutter is opened to suck small dust and collect the dust.
Even in this case, by opening and closing the shutter,
Since the coarse dust is collected in a state of being attached to the blade plate and is not sucked, there is an effect that the extension pipe is not clogged. In addition, since the intake air is limited to the opening of the casing and there is no detour, there is also an effect that the intake power from the main body can be effectively used at the opening.

A pit cleaning tool for an elevator shaft according to a fourth aspect of the present invention is the pit cleaning tool according to the first aspect,
Instead of the shutter, a filter provided with a nozzle is stretched over the opening, so that dust sucked into the suction body and dust adhered to the suction body are selected. For this reason,
Since the coarse dust is collected in a state of being attached to the filter and is not sucked, there is an effect that the extension pipe is not clogged. In addition, since the shutter is not used, there is an effect that the cleaning tool can be simplified.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of a pit cleaning tool of an elevator shaft according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view of the extension pipe 14 and the suction body 15 in the same manner.

FIG. 3 is a plan view of a part of the extension pipe 14 and a suction body 15;

FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 3;

FIG. 5 is a view similar to FIG. 4 when the shutter 18 is opened.
FIG. 5 is a cross-sectional view taken along a line V in FIG.

FIG. 6 is a view similar to FIG. 4 when the shutter 18 is closed;
FIG. 5 is a cross-sectional view taken along a line V in FIG.

FIG. 7 is a bottom view when a part of the extension pipe 14 and a shutter 18 of the suction body 15 are opened.

8 is a bottom view when a part of the extension pipe 14 and the shutter 18 of the suction body 15 are closed. FIG.

FIG. 9 is a plan view of a part of an extension pipe 14 and a suction body 25 according to a second embodiment of the present invention.

FIG. 10 also shows a part of the extension pipe 14 and the suction body 25.
FIG. 6 is a bottom view when the shutter 18 is closed.

FIG. 11 is a bottom view of a part of the extension pipe 14 and a suction body 35 according to Embodiment 3 of the present invention.

FIG. 12 is a side view showing a state of use of a conventional pit cleaning tool for an elevator hoistway.

[Explanation of symbols]

1 hoistway, 2 pits, 3 pit floor, 4 paper waste, 5 dust, 6 bottom floor, 7 entrance, 8
Door, 10 workers, 11 cleaner body, 12
Flexible hose, 13 hand pipe, 14 extension pipe, 141 fixture, 15 suction body, 151 casing, 152 opening, 153 nozzle, 16 joint pipe, 161 flange, 162 outer guide, 163 inner guide, 164 slit, 17
Bumper, 18 shutters, 181 slats, 1
82 support shaft, 183 notch, 184 pin, 19
Actuator, 20 Actuator, 21
Rod, 22 connector, 25 suction body, 251
Casing, 252 opening, 28 shutter, 2
81 blades, 282 spindles, 284 nozzles,
35 suction body, 351 casing, 352 opening, 38 filter, 381 nozzle.

Claims (4)

[Claims] 1. A main body for sucking dust from an air intake hole to collect dust, a flexible hose connected to the air intake hole, and a lower end landing with a hand side connected to the other end of the flexible hose. An extension pipe having a length at which the tip reaches at least the pit floor of the elevator shaft when lowered, connected to the other end of the extension pipe, and covering the cleaning surface with a casing having an opening formed on the cleaning surface side. A pit cleaning tool for an elevator hoistway having a suction body that sucks dust on the cleaning surface by suction by the main body, wherein a nozzle is bored in the casing, and a shutter that opens and closes the opening is provided. Pit cleaning tool for elevator hoistway. 2. A process of attaching a suction body to an extension pipe and lowering it from the lowest floor to a pit floor of an elevator hoistway, activating a main body to generate intake air, opening a shutter, and opening the intake air through the opening of the suction body. Sucking the dust on the pit floor to collect the dust in the main body and adsorbing the dust to the casing by the suction from the nozzle to clean the pit floor, and closing the shutter to close the shutter. 2. The cleaning method using the pit cleaning tool according to claim 1, comprising a step of lifting up the suction body and collecting the dust while keeping the suction from the nozzle and adsorbing the dust to the casing. 3. The pit cleaning tool for an elevator shaft according to claim 1, wherein the shutter is constituted by a plurality of reversibly rotatable blades, and the nozzle is provided on the blades instead of being provided in a casing. A pit cleaning tool for elevator hoistways, characterized by being drilled. 4. The pit cleaning tool for an elevator shaft according to claim 1, wherein a filter provided with a nozzle is stretched in an opening in place of the shutter in place of the shutter.