JP2006206285A - Inclined passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inclined passenger conveyor capable of allowing a recess formed at an intersection between an inclined portion and a lower horizontal portion of an oil pan to be easily cleaned. <P>SOLUTION: A means 16 to reduce the depth of a recess 14D formed by the intersection between an inclined portion 14B and a lower horizontal portion 14C of an oil pan 14 is provided in the recess. By reducing the depth of the recess 14D between the inclined portion 14B and the lower horizontal portion 14C, a brush 15 attached to a front axle 8 of a tread can reach a bottom of the recess 14D, and as a result, deposited lubricating oil and earth and sand can be sufficiently scraped out. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an escalator in which a step is formed in an adjacent tread in an inclined section and an inclined passenger conveyor such as an electric road in which a step is not generated between adjacent treads in an inclined section. The present invention relates to an inclined passenger conveyor equipped with a pan.

  An inclined passenger conveyor that is provided with an oil pan over the entire length under the main frame to prevent dripping of the lubricating oil of the drive mechanism or dropping of earth and sand to the outside of the main frame, for example, as shown in Patent Document 1 Has already been proposed.

Japanese Patent Laid-Open No. 10-1279 (FIG. 4)

  According to the above technique, since the main frame is formed by the upper horizontal frame, the inclined frame, and the lower horizontal frame, the oil pan is also formed by the upper horizontal portion, the inclined portion, and the lower horizontal portion. As a result, a concave portion is formed at the intersection between the inclined portion of the oil pan and the lower horizontal portion.

  The inclined passenger conveyor provided with the oil pan having the above structure periodically cleans the oil pan. The oil pan is cleaned by attaching a brush to the circulating wheel plate or the front wheel shaft of the foot plate, moving the lubricating oil and soil on the oil pan to the lower horizontal part, and then discarding it outside the main frame. To do.

  However, as described above, since the concave portion is formed at the intersection between the inclined portion of the oil pan and the lower horizontal portion, the tip of the brush does not reach the bottom of the concave portion, and even if it reaches, the scraping force is small. Therefore, there is a problem that the lubricating oil and earth and sand cannot be scraped out sufficiently and remain.

  An object of the present invention is to provide an inclined passenger conveyor that facilitates cleaning of a recess formed at an intersection between an inclined portion of an oil pan and a lower horizontal portion.

  In order to achieve the above object, according to the present invention, means for reducing the depth of the concave portion is provided in the concave portion formed by intersecting the inclined portion and the lower horizontal portion of the oil pan.

  Thus, by reducing the depth of the recess formed by intersecting the inclined portion of the oil pan and the lower horizontal portion, the brush attached to the front wheel shaft of the tread reaches the bottom of the recess, Adhesive lubricating oil and earth and sand can be scraped out sufficiently.

  As described above, according to the present invention, it is possible to obtain an inclined passenger conveyor that facilitates cleaning of a recess formed at an intersection between an inclined portion of an oil pan and a lower horizontal portion.

  An inclined passenger conveyor according to the present invention will be described below based on the escalator shown in FIGS.

  The escalator 1 has a main frame 4 installed across the upper floor 2 and the lower floor 3, and a horizontal tread that is circulated in the main frame 4 by being guided by a guide rail (not shown). A plurality of steps 5, a balustrade member 6 erected on both sides in the moving direction of the steps 5, and a moving handrail 7 that moves while being guided by the periphery of the balustrade member 6.

  The main frame 4 includes an upper horizontal frame 4A extending horizontally from the upper floor 2, an inclined frame 4B extending obliquely from the upper horizontal frame 4A to the lower floor 3 side, and the inclined frame 4B. The lower horizontal frame 4 </ b> C extends horizontally to the lower floor 3.

  Each of the plurality of steps 5 is connected to an endless step chain 9 with the front wheel shaft 8 being circulated, and the step chain 9 is driven to circulate. The step chain 9 is wound between a drive sprocket 10 pivotally supported in the upper horizontal frame 4A and a driven sprocket 11 pivotally supported in the lower horizontal frame 4C, and the drive sprocket 10 is installed in the vicinity. The step chain 9 is driven by being rotated by the driving device 12. The driving device 12 is controlled by the control device 13.

  By the way, an oil pan 14 is attached to the lower part of the main frame 4 over its entire length. For example, the outer side of the main frame 4 of the lubricating oil supplied to the driving mechanism such as the driving sprocket 10, the driven sprocket 11, the step chain 9, etc. It prevents dripping onto the main frame 4 and dropping of dust such as earth and sand and cotton dust. The oil pan 14 is also formed with an upper horizontal portion 14A, an inclined portion 14B, and a lower horizontal portion 14C in accordance with the shape of the main frame 4.

  In the escalator 1 configured as described above, when cleaning oil stains and accumulated dust on the oil pan 14 during periodic inspection, one or a plurality of steps 5 are removed from the front wheel shaft 8 of the step chain 9 and the front wheel shaft 8 is attached to the escalator 1. By attaching the brush 15, which is a cleaning tool, and operating the escalator 1 ascending at the maintenance operation speed, dust covered with oil can be collected in the lower horizontal portion 14 </ b> C of the oil pan 14. The cleaning of the oil pan 14 is completed when the worker enters the lower horizontal frame 4C and removes the dust collected in the lower horizontal portion 14C.

  Here, the brush 15 has a dimension slightly longer than the dimension H1 between the movement locus of the front wheel shaft 8 of the step 5 (or the movement locus of the step chain 9) and the oil pan 14, and the elasticity of the brush 15 is increased. The dust on the oil pan 14 is scraped out.

  However, the oil pan 14 has a recess 14D formed at a position where the inclined portion 14B and the lower horizontal portion 14C intersect. The dimension H2 between the recess 14D and the movement locus of the front wheel shaft 8 of the step 5 (or the movement locus of the step chain 9) is larger than the dimension H1, and the tip of the brush 15 does not reach the lower part of the depression 14D. The accumulated dust cannot be scraped off.

  Therefore, in the present embodiment, as a means for reducing the depth of the recess 14D, a flat bottom-up plate 16 that evenly spans the inclined portion 14B and the lower horizontal portion 14C of the oil pan 14 is attached by welding W1 and W2. The dimension H3 of the step 5 with respect to the movement locus of the front wheel shaft 8 (or the movement locus of the step chain 9) is made smaller than the dimension H2 and close to the dimension H1.

  By providing the bottom raising plate 16 in this manner, the brush 15 can slide on the oil pan 14 over almost the entire length, so that most of the dust accumulated on the oil pan 14 can be scraped to the lower horizontal portion 14C. The inconvenience due to the dust remaining in the recess 14D can be eliminated.

  FIG. 3 shows a second embodiment according to the present invention. As means for reducing the depth of the recess 14D, a triangular filling 17 that evenly spans the inclined portion 14B and the lower horizontal portion 14C of the oil pan 14 is shown. This filling 17 was fixed by a known means such as an adhesive, and the bottom of the recess 14D was raised.

  With this configuration, the bottom of the recess 14D is raised, and as a result, the dimension of the step 5 with respect to the movement locus of the front wheel shaft 8 (or the movement locus of the step chain 9) is the same as that of the first embodiment. Similarly, it can be made smaller than the dimension H2 and close to the dimension H1.

  By the way, in the above description, since the bottom of the concave portion 14D can be raised by simply adding another member such as the bottom raising plate 16 and the filling 17 without changing the shape of the oil pan 14, particularly for the existing escalator 1. It is an effective method. However, it can be applied to the newly established escalator 1.

  Next, third to fifth embodiments according to the present invention will be described with reference to FIGS. In the embodiment shown in FIG. 4 to FIG. 6, the movement trajectory (or the front wheel shaft 8 of the step 5 (or alternatively) is connected between the inclined portion 14 </ b> B and the lower horizontal portion 14 </ b> C of the oil pan 14 via connecting members. The dimension of the step chain 9 is substantially constant over the entire length of the oil pan 14. The embodiment shown in FIGS. 4 to 6 will be specifically described below.

  In the third embodiment shown in FIG. 4, the inclined portion 14 </ b> B and the lower horizontal portion 14 </ b> C of the oil pan 14 are not directly connected but connected via an intermediate inclined portion 18 that is a connecting member. The intermediate inclined portion 18 has a lower inclination than the inclined portion 14B, and is connected to the inclined portion 14B and the lower horizontal portion 14C by known connecting means such as welds W1, W2, and the like. The same effect can be achieved.

  In the fourth embodiment shown in FIG. 5, the inclined portion 14B and the lower horizontal portion 14C of the oil pan 14 are connected by welding W1, W2, etc. via an intermediate polygon inclined portion 19 that is a connecting member. A first inclined portion 19A having a gentler inclination than the portion 14B, a second inclined portion 19B having a gentler inclination than the first inclined portion 19A, and a third inclined portion having a gentler inclination than the second inclined portion 19B. And an inclined portion 19C. As a result, the bottom of the intermediate polygonal inclined portion 19 is substantially similar to the movement locus of the front wheel shaft 8 of the step 5 (or the movement locus of the step chain 9), and the movement locus of the front wheel shaft 8 of the step 5 (or the step chain 9). ) Can be made closer to the dimension H1.

  In the fifth embodiment shown in FIG. 6, an inclined portion 14B and a lower horizontal portion 14C of an oil pan 14 are connected by welding W1, W2, etc. via an intermediate concave curved surface member 20 as a connecting member. 5 is formed on a concave curved surface having a curvature similar to the movement locus of the front wheel shaft 8 (or the movement locus of the step chain 9) or a similar concave curved surface. As a result, the bottom of the intermediate concave curved member 20 has a shape that is the same as or approximate to the movement locus of the front wheel shaft 8 of the step 5 (or the movement locus of the step chain 9), and the movement locus of the front wheel shaft 8 of the step 5 (or the step). The dimension between the chain 9 and the movement trajectory of the chain 9 can be the same as or approximate to the dimension H1.

  As described above, according to each embodiment of the present invention, the recess formed at the intersection of the inclined portion 14B of the oil pan 14 and the lower horizontal portion 14C is made shallower and the front wheel shaft 8 of the step 5 is made shallower. Since the movement locus (or the movement locus of the step chain 9) is approached, the brush 15 can be slid over almost the entire length of the oil pan 14, and as a result, dust and the like on the oil pan 14 are effectively scraped. be able to.

  In the above embodiment, the escalator has been described as an example of the inclined passenger conveyor. However, it is needless to say that the present invention can also be applied to an inclined electric road.

The principal part vertical side view which shows the oil pan of 1st Embodiment of the inclination type passenger conveyor by this invention. The schematic side view which shows the escalator provided with the oil pan of FIG. The equivalent figure of FIG. 1 which shows the oil pan of 2nd Embodiment of the inclination type passenger conveyor by this invention. The equivalent FIG. 1 figure which shows the oil pan of 3rd Embodiment of the inclination type passenger conveyor by this invention. The equivalent figure of FIG. 1 which shows the oil pan of 4th Embodiment of the inclination type passenger conveyor by this invention. The equivalent FIG. 1 figure which shows the oil pan of 5th Embodiment of the inclination type passenger conveyor by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Escalator, 4 ... Main frame, 4A ... Upper horizontal frame, 4B ... Inclined frame, 4C ... Lower horizontal frame, 5 ... Step, 9 ... Step chain, 14 ... Oil pan, 14A ... Upper horizontal part, 14B ... Inclined part 14C ... Lower horizontal part, 14D ... Recess, 15 ... Brush, 16 ... Bottom raising plate, 17 ... Filling, 18 ... Intermediate inclined part, 19 ... Intermediate polygon inclined part, 20 ... Intermediate concave curved surface member.

Claims (6)

  A plurality of treads that are connected endlessly and circulate, a main frame that supports these treads and is composed of an upper horizontal frame, an inclined frame, and a lower horizontal frame, and an upper horizontal frame, an inclined frame, and a lower part of the main frame In an inclined passenger conveyor having an oil pan formed by an upper horizontal portion, an inclined portion, and a lower horizontal portion that closes the bottom portion of the horizontal frame, the oil pan is formed at a position where the inclined portion and the lower horizontal portion intersect. An inclined passenger conveyor characterized in that means for reducing the depth of the recess is provided in the recess.   The inclined passenger conveyor according to claim 1, wherein the means for decreasing the depth of the recess is a member that forms the recess at a plurality of angles.   2. The inclined passenger conveyor according to claim 1, wherein the means for reducing the depth of the recess is a connecting member connected between an inclined portion of the oil pan and a lower horizontal portion.   4. The inclined passenger conveyor according to claim 3, wherein the connecting member is a curved member having a concave curved surface.     4. The inclined passenger conveyor according to claim 3, wherein the connecting member is a polygonal member that forms recesses at a plurality of angles.   A plurality of treads that are connected endlessly and circulate, a main frame that supports these treads and is composed of an upper horizontal frame, an inclined frame, and a lower horizontal frame, and an upper horizontal frame, an inclined frame, and a lower part of the main frame In an inclined passenger conveyor having an oil pan formed by an upper horizontal portion, an inclined portion, and a lower horizontal portion that closes the bottom portion of the horizontal frame, the oil pan is formed at a position where the inclined portion and the lower horizontal portion intersect. The inclined passenger conveyor is characterized in that the portion to be formed is formed in a shape that approximates or resembles the movement trajectory of the front axle of the step.

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