JPS606576A - Lifting gear for stair - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stair lifting device for raising and lowering a carrier by engaging it with a guide rail provided along a ramp, and particularly relates to sending and receiving signals with the carrier.

Where are the railway station buildings and how many stairs there are?

A stair lift is provided to assist wheelchair users. This stairway pulling device usually has an electric motor installed on the side of the carrier and is driven up and down, so it requires power supply. In addition to this, signals are also exchanged with the carrier.

In this way, it is necessary to send power and signals to the carrier.
One method is to use a moving cable and a winding device, as proposed in Japanese Patent Application No. 55-165To4. When a moving cable has a large number of built-in electric wires, its rigidity increases, and a large force is required to wind nine windings, resulting in a large winding device.

For this reason, it has been desired to reduce the number of electric wires connected to the carrier as much as possible.

This invention relates to the above point, and aims to transmit and receive signals to and from a carrier without increasing the number of electric wires.

1 to 6 show one embodiment of the present invention.

First, in Fig. 1, (1) is the staircase, (2) is the side wall 99 of this staircase (11), (31 is the upper rail fixed to this side wall (2), and (4) is this upper rail ( The lower rail (5) is fixed parallel to the upper rail (31) and the lower end of the lower rail (4), and the pillar (7) is fixed to the floor (6). ) is a carrier that engages with the upper rail (3) and the lower rail (41 to move up and down), and (7a) is an operation panel provided on this carrier (7).

Figures 2 and 3 show details of the carrier (7).

In the figure, the same numbers as in Figure 1 indicate the same parts, (71) is the main body, (72) is the hoist installed on the back side of this main body (72), and the electric motor (72) (72b) to reduce the speed and rotate the pinion (720).

(73) is a rack attached to the upper rail (3) and meshes with the pinion; (74) is a pair of main rollers that support the weight of the carrier (7) and roll on the plane of the lower rail;
74a) are side rollers that roll on the side surfaces of the upper rail (3) and lower rail (41) and guide the main body (74) to move up and down along the upper rail (3) and lower rail (4). , (75) is a moving cable that sends power and electrical signals to the carrier (7), (76) is a moving cable that sends the guide roller (77)
〉＼ Cable Lee state where 75% of the mobile case (75) is wound up. If this occurs, the carrier (7) will stop, and if it falls horizontally, the safety rod will allow the carrier (71) to move up and down.

(8) is a floor whose end is rotatably supported by the main body (71).

(81) is a floor drive device that allows this floor to stand upright, fold it up, or drop it horizontally by 1''.

Figure 3 shows the details of the floor drive device (81), where On is the floor drive electric motor whose upper part is rotatably supported by the main body (71), and (92) is the floor drive electric motor (to). The driven threaded rod (93) is a movable nut that is rotatably supported on the protrusion on the back side of the main body (7) of the floor (80) and is screwed into the threaded rod (92).

Figure 4 shows the state when the carrier (7) has descended to the bottom and is facing the pillar (5).
(103) is the push button provided on the pillar (5), and (103) is the push button provided on the pillar (5).
5), a first floodlight which is a communication means that emits light to the outside through an opening (103); 2 emitter, (105) is the first receiver with a communication hand installed on the carrier (7), and the opening (
It operates by receiving light from the first projector (105) via the projector (105a). (io6) is also the second receiver.

Fig. 5(a) and Fig. 5(1)) Fi control circuit diagram in Fig. 9, which operates by receiving light from the second floodlight (104) through the opening (106a).

RO* "0 + TO is a three-phase AC power supply, and R8T is a three-phase AC power supply sent to the carrier (7) via the moving cable (75).

The fin is powered by this three-phase AC power 8. A transformer connected to T and supplying power to the control circuit through a circuit breaker, etc., T1゜81
are the power lines connected to the circuit breaker (to), respectively, (c) is a rectifier circuit that is connected to the power lines 'rj and sl and converts alternating current into direct current, and outputs direct current to the power lines (a) and H, (To) is a floor movable electric rock that rotates reversibly and drives the floor (8o) as shown by arrows A and B in Figure 3. OI) is a movable rock that moves when the first light receiver (105) receives light. output relay
(31a) and (31b) are the normally open contacts. &J
is an output relay that is energized when the second light receiver (106) receives light, and (32a) and (32b) are its normally open contacts.

弼 is a normally closed contact that opens when the floor (8) rotates in the direction shown by arrow B in Figure 3 and is in the horizontal position,
0) is a normally closed contact that opens when it is rotated in the direction shown by arrow A in FIG. 3 and is in the upright position. (to) is the control panel (
7a) is a rising pushbutton that is opened by external operation; @ is also a descending pushbutton.

cI is also a stop push button. (to) is a safety switch that closes when the safety rod (78) is in the horizontal position.

OI is a top limit switch that opens and stops the carriage (7) when the carriage (7) reaches the upper end stop position;
(4G is a lower limit switch that opens when the carrier (71) reaches the lower end stop position and stops the carrier (7).

(411 is a relay for ascending operation that is energized when the ascending push button (c) is operated, and (41a) and (41b) are its normally open contacts. (4 is the descending push button (c) )
(42) is a descending operation relay that is activated when is operated.
a), (42b) are its normally open contacts. Reference numeral denotes a contactor for upward operation, (43a) to (43e) are its normally open contacts, and (43f) is its normally closed contact. 04 is a descending violation contactor.

(44a) to (4 each are their normally open contacts, and (44f) are their normally closed contacts': The upper end stop relay is always energized and is deenergized by opening the upper limit switch handle. (45a), (45b) are normally open contacts, and (46) is a lower end stop relay that is always energized and is deenergized when the lower end limit switch is opened.

(46a), (4Sb) i, t normally open contact, (4
50), (, Md) is its normally closed contact. @n is a safety rod control relay for controlling the safety rods (78) provided before and after the carrier (7), and (47a) is its normally open contact;
(471)) is its normally closed contact. (4e safety rod (
The safety bar limit switch (41) is opened when the safety bar (78) becomes horizontal, and the safety bar limit switch (41) is opened when the safety bar (78) becomes 11 erect.
78) is a safety bar lowering relay that is energized when lowering, (5oa) and (5ob) are its normally open contacts, (50C
) is a normally closed contact. (51) is a relay for raising the safety rod (51a) which is energized when raising the safety rod (78).
), (51b) Id its normally open contact.

(51C) is a normally closed contact. (52) is the main body (71)
This is a safety rod drive electric motor that rotates the safety rod (78) around the attachment part of the safety rod and tilts it horizontally or stands it upright. (53) is a running timer, normally open contact (43e) (
44e) is heated by N and its normally open contact (5
5a) is immediately closed and the normally open contact (43θ) (44e
) opens the normally open contact (53a) after a predetermined time delay.

Next, the operation of the stair lifting device having the above configuration will be described.

First, in order to use the folded carrier (7) when it reaches the floor (6), press the button (1) on the pillar (51).
01) to emit light from the first projector (103) 1
~ru. This light is received by the first light receiver (105).

Since the lower end limit switch CI of the carrier (7) is open, the lower end stop relay (46) is deenergized. Its normally open contacts (46a) and (46b) are open, and its normally closed contact (46c) is closed. In addition, the upper end limit switch C1l is closed, and the upper end stop relay (
C) is energized and its normally open contacts (45a), (45
b) is closed.

The normally closed contact (45c) is open. therefore.

When the first light receiver (105) receives light, T 1- (
105) = (to) - (46C) -C311-81 is output at the same level, relay 131+ is energized, and the normally open contact (3
1J("j')Gb' is closed. As a result...-(31
a) -(3Q-(31b)-←) circuit lζ operates the floor drive motor (to) to move the floor (to) in the direction of arrow B in FIG.
80) to make it horizontal. When the floor (80) becomes horizontal.

The normally closed contacts (to) open to deenergize the output relay oD and open the normally open contacts (31a) (31b). This release causes the floor drive motor to stop.

A wheelchair user gets on the carrier (71) and enters the operation panel (7a).
When the lift push button (to) is held down, the lift operation relay (40) is energized and its normally open contact (4ia) (,
alb) is closed. By this closing, the safety rod control relay +471 is energized, its normally open contact (47a) is closed, and its normally closed contact (47tl) is opened.

By closing the contact (47a), (T1)-(4M-(47
a) The circuit -(5dc)-+4-(81) is closed, the safety bar lowering relay is energized, and its normally open contact (5oa
), (50b) are closed, and the normally closed contact (50b) is open. By energizing the relay for lowering the safety bar, (g) - (50b) is closed.
a) The circuit of (52) - (50b) - (to) is closed and the safety rod drive motor (52) rotates so that the safety rod (78) is in the horizontal position. When the safety rod (78) is lowered, the push button ), n0!9 is released, the rising diversion relay 141 is activated.
1 is deenergized and its normally open contact (41b) opens, so the safety rod control relay G17) is deenergized and the safety frame lowering relay is deenergized. This results in (Tt)-(41-(4
7b) −(5oc) −(51) −(Sl) +7
．． ) The circuit is closed and the safety bar external relay (51) is energized and its normally open contacts (51a) and (51b) are closed, so fH - (51a) - (52) - (51b)
= (→ circuit reverses the safety rod drive motor (52) and makes the safety rod (78) stand upright. If you continue to press the rising push button (to), the safety rod (78) descends and comes to the horizontal position. , the safety bar limit switch 4 opens and the safety bar lowering relay eifl is deenergized.As a result, the normally open contact (50a
) * (50b) opens, so the safety rod drive motor (50b) opens.
2) stops. At the same time, the safety switch fence is also closed. When the safety switch (2) closes, (T1) = 0?1-(
l-(45a)-(41a)-(44f)-A3
- The circuit (81) is closed and the contactor for upward operation -
+3 is energized and its normally open contacts (43a) to (43e
) closes and the normally closed contacts (4!, f) open. As a result, the electric motor (72a) is connected to the power sources (R), (S), and (T), and the brake (72(1)) is also energized and the carrier (7) starts to rotate the tomb. .At the same time, the normally open contact (
43d), the contactor for upward operation is self-retained, so after the carriage (71) starts traveling, it will continue to run even if you release the lift push button (to) on the operation panel (71). The driving timer (53) is energized by the closing of the open contact (43e), and (T1) = (s3a) during driving.
)-14n-(Sl) circuit, the safety rod control relay (
4η continues to be energized. In the unlikely event that the safety rod (78) is driven upward for some reason, the safety frame limit switch closes and the safety rod lowering relay 61 is energized.

Immediately lower the safety bar (78).

When the carrier (7) rises and moves from the floor (6) at the bottom of the stairs.

Lower end limit switch closed (TI) - (41)
- (46) - (81) circuit is closed and the lower end stop relay (46) is energized, its normally open contact (46a),
(46b) closes. The result (TI) (451)
) - (46b) - (4?) - (E31) circuit is closed and the safety rod control relay (4'0 is energized to 1 when the carrier (7) is in the middle of the stairs (11). When the carrier (7) rises and reaches the top stop position of the stairs +1, the upper end limit switch (31) engages with the cam (not shown) attached to the XQ rail (3). It will be released.

As a result, the rising end stop relay of the carrier (71) is deenergized, and its normally open contacts (45a) and (45b) open.
By opening the normally open contact (45a), the upward operation contactor G13 is deenergized, and its normally open contacts (43a) to (4
56) is open.

The normally closed contact (45f) is closed. Also, normally open contact (45b)
When the safety rod control relay (471) is opened, the relay (471) is held only by the normally open contact (53a) of the running timer (56).

When the normally open contacts (5a) to (430) open, the power supply to the city 4 motor (72a) and the brake (72 (1) is cut off, and the carrier (71) stops.Also, the normally open contact (45e) opens. The running timer (53) with a falling time limit is deenergized by II.

Therefore, the carriage (7) starts running 1j after a certain period of time has passed after it stopped.
The timer (53) falls and its normally open contact (53a) is forced open (0). By opening the normally open contact (55a), the safety bar i control relay C71 is deenergized, and its normally open contact (47a) is opened. Open.

The normally closed contact (47tl) closes.

By closing the normally open contact (47'b) (T1) -
L<9-(47b)-(50C)-(5li-(Sl
) is closed, the safety rod lifting relay (5V is energized, and its normally open contacts (51a), (511)) are closed.
ji:: Normally closed contact (519 points open.

As a result, f@ −(51a) −(52) −(511
))-←) is closed and the safety rod drive motor (52
) rotates in a direction that raises the front and rear safety rods (78). When the safety rod (78) reaches its full height, limit switch 4 for stopping the safety rod is opened, the travel timer (56) is deenergized, and the safety rod drive motor (52) is stopped. Safety rod (78
), the wheelchair user gets off the carrier (7).

Carriage T71 #'i is waiting for the next use in that state.

If a user wishes to descend during the above-mentioned standby state, the user, after getting on the reed carrier (7), continues to press the descending push button (a) on the operation panel (7a), contrary to the above.

When the lowering push button (to) is pressed, the lowering operation relay 02 is energized, and its normally open contacts (42a) and (42b) are activated.
) closes. When the normally open contact (42b) is closed (TI)
-(42b) -@η-(Sl) circuit is closed and the safety rod control relay song is energized, and in the same manner as above, the safety rod (78) is lowered and the safety rod (9a) ) closes. Close the safety switch (to) (T1
) -On -Qlj -(46a) -(42a)
-(45f) -J41- The circuit of (81) is closed and the descending operation mount taffeta @4 is energized 11. The normally open contacts (44a) to (44e) are closed and the normally closed contact (44f) is open.

, the normally open contacts (44a) to (44) are closed, energizing the electric motor (72a) and the brake (72d), and the switch (7) starts descending operation.

At the same time, the normally open contact (44d) connects the contact for descending operation,
The lid (441) is self-retaining, so the carrier (7
) will continue to run even if you release your hand from the upper button (to) of the lowering push button on the operation panel (7).

Furthermore, the running timer (5) is activated by closing the normally open contact (44θ).
6) is energized, so the safety rod (78
) from rising.

The carrier (7) descends and moves from the top of the stairs +11 -1-1
1, ki upper limit switch (to) is closed (T1)
-ell-Is-(Sl) circuit is closed, the upper end stop relay (4) is energized, and its normally open contact (45a)
, (45b) closes. Thereafter, in the same manner as described above, the safety rod control relay @η is always in the energized state when it is in the middle of the carrier (71 force S stairs (1)).

When the carrier (7) comes to the stopping position at the lower end of the lower slope (1).

The lower end limit switch OQ engages with a cam (not shown) attached to the upper rail (3) and opens.

As a result, the lower end stop relay (46) of the carrier (7) is deenergized, and its normally open contacts (46, (46b)) are opened.

When the normally open contact (46) is opened, the descending operation container lid is deenergized 2, its normally open contacts (44a) to (44e) open, and its normally closed contact (44f) closes.

Also, by opening the normally open contact (46b), only the normally open contact (53a) of the travel timer (53) is held in the safety rod control relay tan.

By opening the normally open contacts (44a) to (44c), power supply to the electric motor (72a) and brake (72d) is cut off, and the carrier (7) stops.

Also, by opening the normally open contact (44), the running timer (
53) is deenergized and its normally open contact (55a) opens after a certain period of time has elapsed after the carrier (7) stopped.

Thereafter, in the same manner as described above, the safety rod control relay θ falls and the safety rod lifting relay (53) is energized, and the safety rod driving motor (s2) and the safety rod (78) around Is rise to reach the user. is lowered and becomes the I state.

Once the user gets off the carrier (7), it continues to wait in that state.

When there are no more users and it becomes necessary to fold up the carrier (7), when the push button (102) on the pillar (5) is pressed, light is emitted from the second projector (102).

This light is the cutout (104a) of the pillar (5), the carrier (7)
The light passes through the notch (106a) and reaches the second light receiver (106) on the carrier 5 (7) side. The second photoreceiver (106) emits an output upon receiving the optical signal (T1) -12υ-C3
The circuit 41-(4(Sd)-1-(Sl) is closed and the output relay 03 is energized. The normally open contacts (32a), (321)) are closed by the energization of C, so (T1) −
〇1l-(ro2a) -CI-(32b)-4'l
-(Sl) is closed and the floor drive motor (to) is energized in the opposite direction to the above, moving the floor (80) to arrow B in FIG.
Rotate in the direction.

When the floor (80) becomes vertical and the folding is completed, the position detection limit switch Oa opens, the output relay (13) falls, and the floor drive motor (to) stops.

Folding is complete.

By pressing the push button (1o1):'-(lj'@2) provided on the fixed part, light is generated from the projector (105) (10), and this light is transmitted to the carrier. Since the light receiver (105x106) installed in (7) receives the signal and changes it into a signal, there is no need to store the electric wires that send the signals of the push buttons (1o1) (1o2) in the moving cable (75). Even if the carriage (71) is removed from the fixed part,
You can send the number.

Therefore, the number of electric wires in the moving cable (75) can be reduced, and the cable reel (76) can be made smaller. This reduces the weight of the entire carrier (7) including the cable reel (76). Therefore, the output of the L-motor (72) can be reduced by 1%, resulting in an inexpensive stair climbing device.

Note that in the above embodiments, signals are sent and received using light as a medium, but the intended purpose can also be achieved using sound waves.

Moreover, it is not limited to light or sound waves, and electromagnetic force may also be used. That is, as shown in Figure 6.

A transmitter (200) is provided on the pillar (5), and a push button (10
1) is pressed, the electromagnetic coil (20) is energized and electromagnetic force is generated (11).This electromagnetic force line is connected to the opening (103a).
(105a)) induces an electrical signal in the electromagnetic coil (211) provided on the main body (71), and this electrical signal is received by the receiver (210) also provided on the main body (71). Even with this device, it is possible to achieve the intended purpose, and it also has a pair of electromagnetic coils (2
Even if the atmosphere is filled with smoke between 01 and 211, signals can be reliably exchanged.

Yet again. In the above embodiment, a case was described in which a signal to activate the floor (80) of the carrier (7) is sent from the fixed part. When the call button is pressed, a signal can be sent from the fixed side at the upper end to the carrier (7).Even in this way, the call signal can be sent to the carrier (7) without using the m-line. It is something that can be sent.

Even more talented. Even when sending signals from the carrier side to the fixed part ill, air propagation signals such as light and sound waves can be used.

Able to achieve desired objectives.

Yet again. In the above embodiment, the light emitter and light receiver are engaged when the carrier reaches the lower end, but signals may be transmitted and received regardless of the position of the carrier.

As explained above in this invention, the carrier that engages with the rail and moves up and down is provided with a communication means for sending and receiving signals propagating in the air, and signals are sent and received via this communication means, so that the electric wire This has the effect that signals can be sent and received without using a wire, the number of wires connected to the carrier can be reduced, and the winding device for winding the wire can be made smaller.

[Brief explanation of the drawing]

1 to 5(b) show an embodiment of the present invention. @Figure 1 is a perspective view showing the entire stair lifting device, and Figure 2 is a
A left side view of the carrier seen from the direction of arrow A in Fig. 1, Fig. 3 is a partially detailed view, Fig. 4 is a sectional view showing details of the main part, Figs. 5(a) and 5(b). ) is a control circuit connection diagram, and FIG. 6 is a detailed diagram of main parts showing another embodiment. In the figure, (1) is the staircase, and (2) is the side wall (fixed part). (3) is the upper rail, ・j wholesale is the lower rail, and (7) is the carrier. (103) and (104)' are projectors (first communication means). (105) and (106) are light receivers (second communication means). Note that the same reference numerals in Figure 9 indicate the same or equivalent parts. Agent Masuo Oiwa, t4 Figure 2 Figure 5 (Submission) Figure 6 Commissioner of the Japan Patent Office 1. 'II display'7:)'IPJIIIJ
I58-113762 No. 3, drawing 6 of the representative of the person making the amendment, Hitoshi Katayama, and drawing 5 of the self-answered drawings for the amendment (,)'r are corrected as shown in the attached appendix. that's all

Claims (2)

[Claims] (1) In a vehicle that engages with a rail attached to a fixed part having a step to raise and lower the carrier, and transmit and receive signals between the carrier and the fixed part, aerial transmission to the fixed part A stair lifting device characterized in that a first communication means for transmitting and receiving signals is provided, and the carrier is equipped with a second communication means for transmitting and receiving the air propagation signal. (2) The stair lifting device according to claim 1, wherein the first communication means and the second communication means are photoelectric devices comprising a light projector and a light receiver.