JPS63106292A - Step for escalator, etc. - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to improvements in the steps of escalators, motorized roads, etc. (hereinafter referred to as escalators, etc.) which are particularly suitable for use by disabled persons using wheelchairs, etc. be.

[Prior art]

The depth dimension of a typical escalator step is approximately 400 mm.
The size is around m11, but with this size, if a person with a physical disability uses a wheelchair, the wheelchair is too large to use the escalator, so the applicant recently filed Japanese Patent Application No. 120493/1983.

Patent Application No. 1980-198057, Patent Application No. 13434-1982
No. 0, in Japanese Patent Application No. 60-6332, the tread of any step or the auxiliary tread provided below the tread is configured to be able to be pulled out in the depth direction (back and forth direction), and adjacent to the step that can be pulled out freely. We have proposed an escalator in which the upper step is tiltable so that the tread is substantially widened only when used by a handicapped person, as shown in FIG.

The outline will be explained below using the drawings.

FIG. 3 is a side view of the entire escalator, where 1 is the escalator body, 2 is a handrail, and 3 is a step for general passengers, and the depth dimension is approximately 400111111 as described above.

Reference numeral 4' denotes a step for the handicapped person in which a part 1 of the footboard 6', for example, an auxiliary footboard 5 built into the lower part of the footboard 6' can be pulled out in the front and back direction, and 4 denotes an upper step adjacent to the step for the handicapped person 4'. This is a tiltable step with a tread that can be tilted freely and a riser that can be folded in. S.I.
is a stop switch for people with disabilities.If a person with a disability wants to use the escalator, if he or she presses this switch SI, the step 4' for the person with a disability will automatically stop at the boarding entrance, and then
The auxiliary footboard 5 of the step 4' for disabled persons is pulled out rearward, and the footboard of the tiltable step 4 is tilted. S2 is a start switch exclusively for the disabled that starts the escalator after the disabled person gets on the escalator, and S3 is a recovery switch for restoring the switch 4' for the disabled and the tiltable step 4 to their original state.

FIG. 4 is an enlarged perspective view of the tiltable step 4 adjacent to the upper side of the step 4' for disabled persons. FIG. The steps are about 400mm, the same as the steps for general passengers. or,
FIG. 4(b) shows a state in which the footboard 6 is tilted so that the foot rest of the wheelchair does not get in the way as shown in FIG. 5 when used by a person with a physical disability. , 7 is a front wheel, 8 is a rear wheel, 9 is a roller rotatably attached to a lever 10 by a pin 9a, and the lever 10 is rotatably mounted inside the tiltable step 4 via a bearing (not shown). It is fixed to one end of the supported shaft 11,
Normally, it is pulled toward the side by a spring 40 provided between the lever 10 and the inner side (fixed part) of the tiltable step 4 and comes into contact with a stopper 41 .

FIG. 6 is an enlarged perspective view showing the inside of the tiltable step 4. FIG. 6(a) is a normal case, and FIG.
is in a tilted state, and the riser 42 is folded onto the lower surface of the step 4. In the figure, the same reference numerals as in FIGS.
A bevel gear is fixed to the other end, that is, the end opposite to where the lever 10 is provided, and 44 is a bevel fixed to one end of a shaft 45 rotatably supported on one side of the freely tiltable step 4. It is a gear and meshes with the bevel gear 43. 46 is a lever fixed to the other end of the shaft 45; 47 is a link whose one end is rotatably connected to the lever 46 by a pin 47a, and the other end is rotatably connected to the lever 48 by a pin 47b; The other end of 4B is fixed to one end of a rotatably supported shaft 49. A lever 50 has one end fixed to the other end of the shaft 49, and a bar 52 with a rotatable roller 51 is fixed to the other end, and the left and right levers 50 (
Sea, to which the left lever 50 (not shown due to left-right symmetry) is connected, is a double-shaped member fixed to the back surface of the footboard 6, and is always engaged with the roller 51. 53 is the tread 6
The shaft 53 is fixed to the lower front end of the fixed part of the treadle 6, and the shaft 53 and the rotating part of the footboard 6 are connected by a hinge 54. Reference numeral 55 denotes a link rotatably attached via a pin 55a to a link attachment plate 56 whose one end is fixed approximately at the center of the shaft 53;
The other end is rotatably connected via a pin 55b to a link mounting plate 57 fixed to one end of a shaft 58 rotatably supported on the bottom surface of the footboard 6. 59 is a gear fixed to the other end of the shaft 58, and 60 is connected to the footboard 6 via a bearing (not shown).
A shaft is rotatably attached to the rear surface of the riser 42 via a bracket 61, and a gear 62 is fixed approximately at the center of the shaft 60.
It meshes with 9. 70 is a drive lever that is driven in the horizontal direction by a drive device 71 and engages with the row 29 to operate the lever 10; 72 is a guide rail that guides the rear wheels 8 and rollers 9 when operating the escalator with a handicapped person on board; be.

Next, the operation of this conventional device will be explained using the drawings. First, when a disabled person in a wheelchair comes to the lower entrance shown in Figure 3 and presses the disabled stop switch SI,
For example, a well-known detection mechanism that uses a limit switch to detect a protrusion provided only on the handicapped step 4' detects when the handicapped step 4' rotates toward the entrance of the lower level and stops the escalator. 1st Stop When the handicapped step 4' stops at the entrance, the drive lever 70 is completely moved horizontally by the drive device 71, and this action causes the lever 10 to move along the plane of the paper around the axis 11 in Fig. 6(a). Rotate towards the back.

The rotational movement of the lever 10 is shown in FIGS. 6(a) and 6(b) using the shaft 11. Bevel gear 43. The shaft 45 is rotated clockwise via the bevel gear 44, and the lever 46. Pin 47a, link 4
7. Lever 5 via pin 47b, lever 48, and shaft 49
0 in the counterclockwise direction around the shaft 49, and the roller 51
In order to reliably move the support position of the tread plate 6 downward by the engagement of the member 6a, the tread plate 6 is tilted downward about the shaft 53 by the hinge 54.According to this tilting movement, the pin 55a of the link 55 is Since the absolute position and the absolute length of the link 55 do not change, the link mounting plate 57 is fixed by the link 55.
receives the force and rotates counterclockwise together with the shaft 58, causing the gear 59. Gear 62. a60, the riser 42 is folded into the lower part of the step 4 via the bracket 61 as shown in Fig. 6(b).
The state shown in is reached. Therefore, the pulling out operation of the handicapped step 4', which will not be described in detail, the tilting operation of the adjacent step 4, and the folding operation of the riser 42 are performed in parallel, creating a space sufficient for a wheelchair as shown in FIG. .

[Problem that the invention seeks to solve]

By the way, the rotation mechanism of the riser 42 in the tiltable step 4 of such a conventional escalator converts the displacement of the link 55 due to the inclination of the tread 6 into a rotational movement of the riser 42 through the rotation of the gears 59 and 62. Yes, but
Since gears are involved in the transmission mechanism, play occurs due to backlash, which causes play in the riser. If there is any play in the riser, it may interfere with the lower step that is read behind, or create an unnecessarily large gap between the riser and the lower step, which may cause an accident, and the mechanism itself may be complicated. there were.

The present invention has been made in view of the above points, and an object of the present invention is to provide a step such as an escalator having a riser that is safe, highly reliable, and has a simple rotation mechanism.

[Means for solving problems]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of the tiltable step 4 showing an embodiment of the present invention, and 80 in the figure is a link whose one end is rotatably provided to the fixed part of the tiltable step 4 via a pin 80a;
Reference numeral 81 is a link which is rotatably provided at one end to the bracket 6b attached to the back surface of the tread plate 6 of the freely tiltable step 4 via a pin 81a, and at the other end is connected to the pin 8 at the other end of the link 80.
They are rotatably connected via 1b. 82 is a bearing 83 fixed to the bottom riser 42 of the tread plate 6 of the freely tiltable step 4. A riser 42 and a link 84 are fixed to this shaft 82 via a bracket 42a. The tip of the link 84 and the intermediate portion of the link 81 are rotatably connected by a link 85 via pins 85a and 85b, respectively.

Because of this configuration, for example, if the support position of the tread plate 6 by the roller 51 in FIG. 6 is sequentially moved downward and the tread plate 6 is tilted about the hinge (not shown in FIG. Pin 80a and pin 81a of link 81
The distance between the pin 81°b, which is the connecting point of the links 80 and 81, is reduced to the pin 80a of the fixed part of the tiltable step 4.
Rotate clockwise around , and move to the lower step 4' side (backward). At this time, the pin 85a on the link 81 also moves backward, pushing the link 85 backward, and the link 84 rotates clockwise together with the shaft 82 and riser 42, as shown in FIG. Like riser 4
2 is folded and stored inside the tiltable step 4.

Contrary to the above, when the footboard 6 moves from the inclined state to the horizontal state, the completely opposite operation to that described above occurs, and the step returns to the normal step state shown in FIG. 1.

In the above explanation, the tilting mechanism of the tread plate 6 was explained in the case of a conventional tread rotation support structure using a hinge.
This is not to say that the present invention is limited to the embodiments, as the present invention can be carried out even in the case of a support mechanism such as a link mechanism that does not have a fixed rotation center (hinge) of the footboard.

〔Effect of the invention〕

As described above, according to the present invention, no matter how the structure of the treadle is a freely tilting mechanism, the power transmission mechanism does not have gears, so there are no problems with the reliability and safety of the device due to backlash. There is no fear that this will occur, and a step in which the riser is reliably folded into the step in accordance with the tilting movement of the treadle can be obtained using a simple link mechanism.

[Brief explanation of the drawing]

FIG. 1 is a side view of a tiltable step showing an embodiment of the present invention, FIG. 2 is an overall perspective view of the steps of a conventional escalator for the handicapped at the boarding and alighting position, and FIG. 3 is an overall side view of the escalator for the handicapped. FIG. 4 is an enlarged perspective view of the tiltable step, FIG. 5 is a schematic side view showing a situation in which a handicapped person is using a conventional escalator, FIG. 6 is an enlarged see-through perspective view of the tiltable step, and FIG. 7 is a perspective view of the tiltable step. FIG. 2 is a state diagram of FIG. 1 when the footboard 6 is tilted. 429. Tiltable step 661. Treadboard 6b, Bracket 42, Riser 80, First link si, Second link 84, Third link 85, Fourth link Patent applicant Fujichik Co., Ltd. 7 figure man 5 figure ('o) δ G mouth

Claims (1)

[Scope of Claims] At least one step of a plurality of steps constituting an escalator or the like is configured such that the tread is freely tiltable, and the riser of the step is configured to be foldable, comprising: a fixed portion of the step; The back surface of the treadle is rotatably connected by first and second links, a third link is fixed to the back surface of the riser, and the second link and the third link are connected to a fourth link. Steps of escalators, etc. that are rotatably connected by links.