CN215479096U - Interlocking device of elevator door - Google Patents

Abstract

The present invention relates to an interlock device for an elevator door, which can prevent malfunction caused by contact of elevator components and can easily release an interlock. An interlock device for an elevator door is provided with: the interlocking device locks the side door of the elevator waiting hall of the elevator; and an engaging member provided in the car side door and engaged with the interlock to release the lock of the waiting hall side door, the interlock including: a swing lever supported around a shaft so as to be swingable between a lock position and a lock release position of a side door of a lobby; a clamped part arranged on the swing rod; and a cover that protects at least the engaged portion, the engaging member being provided with an interference prevention portion that prevents interference with the cover when the engaging member is engaged with the engaged portion.

Description

Interlocking device of elevator door

The application is based on Japanese patent application 2019-222888 (application date: 12/10/2019), and benefits of priority are enjoyed from the application. This application incorporates by reference the entirety of this application.

Technical Field

Embodiments of the present invention relate to an interlock device for an elevator door.

Background

There is known an interlock device including an interlock for locking a hall side door of an elevator, and an engaging member provided in a car side door and engaged with the interlock to release the locking of the hall side door.

SUMMERY OF THE UTILITY MODEL

In the interlock device for the elevator door, there is a possibility that the interlock is brought into contact with an elevator component such as a lead wire during the lifting of the car and malfunctions.

An object of the present embodiment is to provide an interlock device for an elevator door, which can prevent malfunction due to contact of elevator components and can easily release the interlock.

An interlock device for an elevator door according to an embodiment is characterized by comprising: the interlocking device locks the side door of the elevator waiting hall of the elevator; and an engaging member provided in the car side door and engaged with the interlock to release the lock of the waiting hall side door, the interlock including: a swing lever supported around a shaft so as to be swingable between a lock position and a lock release position of the hall side door; a clamped part arranged on the swinging rod; and a cover that protects at least the engaged portion, the engaging member being provided with an interference prevention portion that prevents interference with the cover when the engaging member is engaged with the engaged portion.

The interference preventing portion may be an insertion portion into which a part of the cover is inserted.

The insertion portion may be a hole, a recess, or a recessed step portion into which a part of the cover is inserted.

The engaged portion may be pressed by the engaging member to swing the swing lever to the unlock position, the engaging member may include a pressing portion that presses the engaged portion and a support portion that supports the pressing portion, and an area of a pressing surface of the pressing portion may be larger than a cross-sectional area of the support portion.

Effect of the utility model

According to the interlock device for an elevator door of the present invention, it is possible to easily release the interlock while preventing malfunction due to contact of elevator components.

Drawings

Fig. 1 is a front view of a door on a hall side as viewed from a hoistway side in an embodiment, and is a view in which an interlock is in a locked state and a cover is removed.

Fig. 2 is a front view of the interlock shown in fig. 1 in an unlocked state with a cover removed.

Fig. 3 is a front view showing a relationship between the interlock and the engaging member when the interlock is in a locked state.

Fig. 4 is a plan view showing a relationship among the engaged member, the engaging member, and the cover.

Fig. 5 is a front view of the cover.

Fig. 6a to 6C are views of the engaging member, fig. 6a is a perspective view, fig. 6B is a B-B sectional view shown in fig. 6a, and fig. 6C is a C-C sectional view shown in fig. 6 a.

Fig. 7 is a diagram showing the second embodiment, and is a front view showing a state corresponding to fig. 3.

Fig. 8 is a diagram showing the third embodiment, and is a front view showing a state corresponding to fig. 3.

Fig. 9a and 9b are diagrams showing modifications of the engaging member, fig. 9a is a plan view showing a first modification of the engaging member in relation to the engaged member and the cover, and fig. 9b is a plan view showing a second modification of the engaging member in relation to the engaged member and the cover.

Fig. 10a to 10c are diagrams showing other modifications, fig. 10a is a plan view showing a third modification of the engaging member in relation to the engaged member and the cover, fig. 10b is a plan view showing a fourth modification of the engaging member and a modification of the cover, and fig. 10c is a plan view showing a fifth modification of the engaging member and a modification of the cover.

Fig. 11 is a diagram of another modification, and is a plan view of a sixth modification in which the engaging member is shown in relation to the engaged member and the cover.

Detailed Description

[ first embodiment ]

Hereinafter, an interlock device for an elevator door according to a first embodiment will be described with reference to the drawings.

As shown in fig. 1, an interlock device 1 of an elevator door (hereinafter, simply referred to as "interlock device") is provided in a hall door 2 of an elevator, and the interlock device 1 is configured to release the lock of the hall door 2 in conjunction with the opening of a car side door when the car (not shown) is parked and the car side door is opened.

The interlock device 1 is composed of an interlock 3 and an engaging member 5, the interlock 3 is provided in a waiting hall side door 2, locks the waiting hall side door 2 and unlocks the locking, and the engaging member 5 is provided in a car side door, and engages with the interlock 3 to unlock the waiting hall side door 2 when the car is parked in the waiting hall.

As shown in fig. 1 and 2, the interlock 3 includes an interlock switch 7 that locks the hall side door 2 in a closed state, a swing lever 9 pivotally supported by the hall side door 2 so as to be swingable about a shaft 9a, an engaged member 13 that is provided on the swing lever 9 and swings the swing lever 9, and a cover (see fig. 3) 11. In fig. 1 and 2, the cover 11 is omitted for the explanation of the structure of the interlock device 3.

The interlock switch 7 has a terminal 7a protruding from a lower surface thereof, and when the terminal 7a is brought into contact with the energizing member 15 to be energized, the interlock switch 7 is turned ON (ON), and thus it is possible to detect that the hall side door 2 is locked. On the other hand, when the terminal 7a is separated from the conductive member 15 and the current is cut OFF, the interlock switch 7 is turned OFF (OFF), and thus it is possible to detect that the lock is released.

Around the interlock switch 7, a fixed-side lock device 17 for holding the contact between the terminal 7a and the energizing member 15 is provided on the upper side and the rocking lever 9 side.

The swing lever 9 has a master arm 9b and a slave arm 9c extending and protruding from the shaft 9a, and is configured such that the slave arm 9c swings in conjunction with each other when the master arm 9b swings about the shaft 9 a.

An engaged member 13 engageable with the engaging member 5 is fixed to the driving arm 9 b. The engaged member 13 is a roller (an interlock roller), and when the engaging member 5 is pressed by being brought into contact with a side surface of the roller, the driving arm 9b swings about the shaft 9 a.

The driven arm 9c is provided with a current-carrying member 15 at its distal end portion, and the current is passed to the terminal 7a of the interlock switch 7 by the contact of the current-carrying member 15 with the terminal 7 a. The energizing member 15 is, for example, a conductive metal plate.

As shown in fig. 3, the cover 11 covers the shaft 9a side of the swing lever 9, and covers at least the periphery of the active arm 9b and the engaged portion 13 of the swing lever 9. The cover 11 prevents elevator components such as a lead wire from coming into contact with the driving arm 9b and the engaged portion 13 during the elevator car lifting.

As shown in fig. 3 and 5, a substantially semicircular opening 11a is formed in the front surface of the cover 11 at a position corresponding to the engaged member 13, and a protruding portion 11b protruding toward the interlock switch 7 beyond the engaged member 13 is formed above and below the opening 11 a. Further, a shaft covering portion 11e is formed to cover the shaft 9a of the swing lever 9.

As shown in fig. 1, the housing portion 19 housing the current-carrying member 15 in the follower arm 9c has an outer surface engaged with the end portion 17a of the fixed-side locking device 17, and is locked at a position where the current-carrying member 15 contacts the terminal 7a of the interlock switch 7.

The engaging member 5 is provided on the car side door, and is disposed to face the swing lever 9 of the interlock 3 when the car is stopped in the elevator waiting hall as shown in fig. 1.

As shown in fig. 6a to 6c, the engaging member 5 is formed in a substantially L-shaped cross section by a pressing portion 5a and a supporting portion 5b which are integrally formed as long members.

As shown in fig. 4, the pressing portion 5a is brought into contact with the engaged member 13 with its tip as a pressing surface 25, and presses and moves the engaged member 13.

As shown in fig. 4 and fig. 6a to 6c, the support portion 5b is provided with an interference prevention portion 21 that prevents interference with the cover 11. In the present embodiment, the interference prevention portion 21 is a hole formed in the support portion 5 b. The interference prevention portion 21 is formed to be longer than at least the dimension between the two protruding portions 11b and 11b of the cover 11.

Next, the operation and action of the interlock device 1 will be described.

As shown in fig. 1 and 3, before the car stops at the lobby and immediately after the car stops at the lobby, the housing portion 19 provided in the follower arm 9c of the swing arm 9 is positioned on the interlock switch 7 side, and the current-carrying member 15 is brought into contact with the terminal 7a, so that the terminal 7a is in a state of being electrically carried. In this state, the interlock switch 7 is in the on state, and it can be detected that the lobby side door 2 is locked in the off state.

As shown in fig. 3, when the car stops at the lobby side door 2, the engaging member 5 is inserted between the interlock switch 7 and the shaft 9a of the swing lever 9 and is disposed at a position facing the engaged portion 13.

Thereafter, the engaging member 5 moves toward the opening direction of the hall side door (indicated by arrow E in fig. 1), that is, toward the engaged portion 13, in accordance with the opening operation of the car side door.

Next, as shown in fig. 4, the pressing portion 5a of the engaging member 5 abuts (engages) with the engaged member 13 to press the engaged member 13, and when the engaging member 5 moves, the protruding portion 11b of the cover 11 enters the interference preventing portion 21 formed in the supporting portion 5b of the engaging member 5, and the pressing portion 5a presses the engaged portion 13 in the arrow E direction while avoiding interference with the cover 11. As shown in fig. 2, when the engaged portion 13 is pressed in the arrow E direction, the active arm 9b of the swing lever 9 is pressed, the swing lever 9 swings in the arrow F direction about the shaft 9a together with the passive arm 9c, and the storage portion 19 is disengaged from the end portion 17a of the fixed-side lock device 17, and the fixation is released. Further, the swing arm 9 swings in the arrow F direction, and the energizing member 15 is disengaged from the terminal 7a of the interlock switch 7.

In this way, the energization member 15 is disengaged from the terminal 7a of the interlock switch 7, and the interlock switch 7 is turned off, so that it is possible to detect that the lock of the closed state of the hall side door is released.

Thereafter, the waiting hall side door 2 is opened in conjunction with the opening of the car side door.

According to the first embodiment, since the interlock 3 is provided with the cover 11 that protects the engaged portion 13 to prevent the elevator component such as the lead wire from coming into contact with the interlock 3 during the elevator car is being raised and lowered, it is possible to prevent an erroneous operation caused by the contact of the elevator component concerned.

Since the interference preventing portion 21 for the cover 11 is provided in the engaging member 5 that engages with the engaged member 13 provided in the interlock 3, the engaging member 5 can engage with the engaged member 13 without interfering with the cover 11.

The interference prevention portion 21 provided in the engaging member 5 is an insertion hole, and therefore can be easily formed.

In the embodiments and modifications described below, the same reference numerals are given to portions that exert the same operational effects as the first embodiment described above, and detailed description of the portions is omitted, and differences from the first embodiment are mainly described in the following description.

[ second embodiment ]

A second embodiment is shown in fig. 7. In the second embodiment, the shape of the cover 11 is different from that of the first embodiment. That is, the cover 11 of the second embodiment does not have the protruding portion 11b provided on the edge of the opening 11a so as to protrude toward the interlock switch 7, and the edge 11c on the interlock switch 7 side is formed in a straight line shape in the upper and lower directions.

In the second embodiment, when the engaging member 5 is engaged with the engaged member 13 and pressed, the edges 11c and 11c of the cover 11 located above and below the engaged member 13 enter the interference prevention portion 21 formed in the engaging member 5, thereby preventing interference.

The second embodiment can also provide the same operational advantages as the first embodiment described above.

[ third embodiment ]

A third embodiment is shown in fig. 8. In the third embodiment, the cover 11 is formed with a front side covering portion 11d which covers the front side of the engaged portion 13 and is provided to protrude further toward the interlock switch 7 than the engaged portion 13.

In the third embodiment, when the engaging member 5 is engaged with the engaged member 13 and pressed, the front side covering portion 11d of the cover 11 enters the interference prevention portion 21 formed in the engaging member 5, thereby preventing interference.

The third embodiment can also provide the same operational advantages as the first embodiment described above.

[ modified examples ]

Next, a modification of the first embodiment will be described with reference to fig. 9a to 9b and fig. 10a to 10 c.

The modification shown below is mainly different from the shape of the engaging member 5 shown in the first embodiment.

In the first modification shown in fig. 9a, the engaging member 5 is formed in a substantially Z-shape in plan view by being bent from the supporting portion 5b, and the side surface on the pressing portion 5a side continuous with the side surface 23 of the supporting portion 5b is defined as a pressing surface 25. Further, by making the bent portion large, the pressing surface 25 is made larger than the cross-sectional area of the support portion 5 b.

In the first modification, a concave step portion formed by bending the pressing portion 5a from the supporting portion 5b is used as the interference prevention portion 21.

The cover 11 is formed such that the protruding dimension H1 of the protruding portion 11b is smaller than that of the first embodiment, and the protruding portion 11b is received in the interference preventing portion 21 of the recessed step portion (insertion portion).

In the second modification shown in fig. 9b, the supporting portion 5b is bent into a substantially L-shape in plan view, and the pressing portion 5a is formed to have a larger width than the supporting portion 5b, so that the area of the pressing surface 25 of the pressing portion 5a is larger than the cross-sectional area of the supporting portion 5 b.

In this second modification as well, the cover 11 is formed such that the projecting dimension H1 of the projecting portion 11b is smaller than that of the first embodiment, and the projecting portion 11b is inserted into and housed in the interference prevention portion 21 formed as a recessed step portion (insertion portion), as in the first modification.

In a third modification shown in fig. 10a, a pressing portion 5a is provided by attaching another member to a supporting portion 5b of an engaging member 5, and the area of a pressing surface 25 is made larger than the cross-sectional area of the supporting portion 5 b.

The other structure is the same as the second modification.

In a fourth modification shown in fig. 10b, the pressing portion 5a of the engaging member 5 is formed in an コ -shaped shape in plan view, a side surface continuous with the supporting portion 5b is defined as the pressing surface 25, and the length of the pressing portion 5a is set to be long, so that the area of the pressing surface 25 is larger than the cross-sectional area of the supporting portion 5 b.

In the fourth modification, the interference preventing portion 21 is a space (insertion portion) in which the pressing portion 5a is formed into a コ -shaped concave shape in a plan view, and the space is used as the interference preventing portion 21.

In the fourth modification, the cover 11 is bent toward the engaged portion 13 side with the projecting portion 11b thereof, and the insertion side of the pressing portion 5a is also protected by the engaged portion 13.

In the fourth modification, the protruding portion 11b of the cover 11 is inserted into and housed in the interference prevention portion 21 formed in a recessed space.

In a fifth modification shown in fig. 10c, the thickness of the cover 11 is increased as compared with the first embodiment, and the area of the pressing surface 25 is made larger than the cross-sectional area of the support portion 5 b.

In the sixth modification shown in fig. 11, the interference prevention portion 21 is a spot facing (insertion portion) formed on a surface facing the projection portion 11b of the cover 11, and the projection portion 11b of the cover 11 is inserted into the spot facing to prevent interference with the projection portion 11 b.

The above embodiments are provided as examples, and are not intended to limit the scope of the present invention. These new embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the present invention. The embodiments and modifications thereof are included in the scope and gist of the utility model, and are included in the scope of the utility model described in the claims and equivalents thereof.

For example, in the first modification shown in fig. 9a and the second modification shown in fig. 9b, the supporting portion 5b may be further provided with holes shown in fig. 6a to 6c, or may be spot-faced holes shown in fig. 11.

In the fourth modification shown in fig. 10b, the projecting portion 11b of the cover 11 may be linearly projected toward the engaging member 5 without being bent toward the engaged portion 13.

Claims (4)

1. An interlock device for an elevator door, comprising:

the interlocking device locks the side door of the elevator waiting hall of the elevator; and an engaging member provided on the car side door and engaged with the interlock to release the locking of the waiting hall side door,

the interlock has: a swing lever supported around a shaft so as to be swingable between a lock position and a lock release position of the hall side door; a clamped part arranged on the swinging rod; and a cover for protecting at least the engaged portion,

the engaging member is provided with an interference prevention portion that prevents interference with the cover when the engaging member is engaged with the engaged portion.

2. The interlock for an elevator door of claim 1,

the interference preventing portion is an insertion portion into which a portion of the cover is inserted.

3. The interlock for an elevator door of claim 2,

the insertion portion is a hole, a recess, or a recessed step portion into which a part of the cover is inserted.

4. The interlock device for elevator doors according to any one of claims 1 to 3,

the engaged portion is pressed by the engaging member to swing the swing lever to the unlock position, the engaging member includes a pressing portion that presses the engaged portion and a support portion that supports the pressing portion, and an area of a pressing surface of the pressing portion is larger than a cross-sectional area of the support portion.

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