JP7245455B1 - Elevator governor and elevator - Google Patents

Abstract

A speed governor for an elevator capable of operating an operating part when a weight moves to a set position is provided. SOLUTION: An elevator governor includes a governor wheel that rotates as the car travels, and a governor wheel that revolves around a revolution axis as the governor wheel rotates and moves away from the revolution axis by centrifugal force. A weight that moves apart, an action part that exerts a force in a first direction so as to move in the first direction from the pre-action position to the post-action position, and prevents movement of the action part in the first direction. a stop portion for stopping the action portion at the pre-action position, the stop portion moving the weight away from the axis of revolution to release the stop of the action portion; , move in a second direction that intersects the first direction. [Selection drawing] Fig. 3

Description

The present application relates to elevator governors and elevators.

Conventionally, for example, an elevator speed governor includes a governor wheel that rotates as the car travels, and a governor wheel that revolves around the revolution axis as the governor wheel rotates and moves away from the revolution axis due to centrifugal force. and a weight that moves apart (for example, Patent Document 1).

In the elevator governor according to Patent Document 1, when the sensor or switch detects the weight that has moved to the set position, the car is stopped on the car rails by, for example, operating a predetermined operating part. . By the way, there is a demand to operate the operation part when the weight moves to the set position by a principle different from that of the elevator governor according to Patent Document 1.

Japanese Patent Publication No. 2012-533495

An object of the present invention is to provide an elevator governor and an elevator capable of operating an operating portion when the weight moves to a set position.

The elevator speed governor includes a governor wheel that rotates as the car travels, and a governor wheel that revolves around a revolution axis as the governor wheel rotates and separates from the revolution axis due to centrifugal force. an action part on which the force in the first direction acts so as to move in the first direction from the pre-action position to the post-action position; and the movement of the action part in the first direction. a stop portion for stopping the action portion at the pre-action position to prevent the weight from moving from the revolution axis to release the stop of the action portion; Moving away moves in a second direction that intersects the first direction.

Further, the elevator is provided with the elevator governor.

Front view of essential parts of an elevator according to one embodiment FIG. 4 is a front view of the main part of the elevator according to the same embodiment, showing the operation of the stopping device; FIG. 4 is a side view of the elevator governor according to the same embodiment, showing a state in which the operating portion is positioned at the pre-operating position; FIG. 2 is a plan view of the essential parts of the elevator governor according to the same embodiment; VV line sectional view of FIG. FIG. 2 is a side view of the elevator governor according to the same embodiment, showing a state in which the operating portion is positioned at the reference position; FIG. 4 is a side view of the elevator governor according to the same embodiment, showing a state in which the operating portion is positioned at the release position; FIG. 4 is a side view of the elevator governor according to the same embodiment, showing a state in which the operating portion is positioned at the post-operating position; Enlarged view of the action part and the stop part according to the same embodiment The figure which shows the force which acts between the operation|movement part which concerns on the same embodiment, and a stop part. Enlarged view of an action part and a stop part according to another embodiment The figure which shows the force which acts between the operation|movement part which concerns on the same embodiment, and a stop part. Enlarged view of an action part and a stop part according to still another embodiment The figure which shows the force which acts between the operation|movement part which concerns on the same embodiment, and a stop part.

An embodiment of an elevator and an elevator governor will be described below with reference to FIGS. 1 to 10. FIG. In addition, in each figure (as well as in FIGS. 11 to 14), the dimensional ratios of the drawings and the actual dimensional ratios do not necessarily match, and the dimensional ratios between the drawings do not necessarily match. do not have.

As shown in FIG. 1, the elevator 1 includes, for example, a car 2 in which people ride, and car rails 3, 3 that extend along the vertical direction Z and guide the car 2 in the vertical direction Z, as in the present embodiment. , and a stopping device 4 for stopping the car 2 on the car rails 3,3. Although not shown, the elevator 1 may include a car driving section for moving the car 2 in the vertical direction Z, for example.

Although not particularly limited, for example, the car drive unit may be a linear motor, the elevator 1 may be of a linear motor type drive system, and, for example, may be configured without a rope or the like connected to the car 2. . Further, the elevator 1 may be configured to be of a rope type drive system, for example, or may be configured to be of a hydraulic drive type, for example.

For example, the car 2 may include a car room 2a in which people ride and a car frame 2b arranged around the car room 2a and connected to the car room 2a, as in the present embodiment. The car frame 2b may be arranged, for example, not only below the car chamber 2a shown in the drawing, but also above and on the sides of the car chamber 2a.

The stop device 4 includes, for example, a stop fixed portion 4a fixed to the car 2, a stop movable portion 4b movable with respect to the stop fixed portion 4a, and a stop elastic force applying an upward elastic restoring force to the stop movable portion 4b. and a transmission portion 4d connected to the stop movable portion 4b and transmitting the elastic restoring force of the stop elastic portion 4c to the stop movable portion 4b. Although the stopping device 4 is connected to the car frame 2b below the car chamber 2a in this embodiment, it may be connected to the car frame 2b above the car chamber 2a, for example.

The stop movable part 4b has, for example, a stop position (see FIG. 2(b)) at which the car 2 is stopped in cooperation with the stop fixed part 4a, and a standby position below the stop position (see FIGS. 1 and 2 ( a))) and may be movable with respect to the stop fixing 4a. Then, for example, the car 2 may be stopped on the car rails 3 by cooperation between the movable stop part 4b and the fixed stop part 4a when the movable stop part 4b is positioned at the stop position.

Although not particularly limited, for example, the stop movable portion 4b may be formed in a wedge shape. Then, for example, when the movable stop portion 4b is positioned at the standby position, the movable stop portion 4b is separated from the car rail 3, and when the movable stop portion 4b moves to the stop position, the movable stop portion 4b The car 2 may be stopped on the car rails 3 by coming into contact with the stop fixing parts 4a and pinching the car rails 3 in cooperation with the stop fixing parts 4a.

The number of car rails 3 is not particularly limited, and may be, for example, two as in the present embodiment, or four, for example. Also, the number of stop fixed parts 4a and stop movable parts 4b is not particularly limited, and may be two as in the present embodiment, or may be one, for example. Any number can be used as long as it can be stopped. Further, for example, the number of the fixed stop portions 4a and the movable stop portions 4b may be the same as the number of the car rails 3 as in the present embodiment.

For example, as in the present embodiment, the transmission portion 4d includes first and second rotating members 4e and 4f rotatably connected to the car frame 2b, and the first and second rotating members 4e and 4f having respective ends. and a long member 4g rotatably connected to each. Then, for example, the first movable stop portion 4b is rotatably connected to the first rotating member 4e, and the second movable stop portion 4b is rotatably connected to the second rotating member 4f. may be configured as follows.

Further, the transmission portion 4d is, for example, fixed to the car frame 2b and fixed to the first holding member 4h that holds the first end of the stop elastic portion 4c and the elongated member 4g, as in the present embodiment. and a second holding member 4i that holds the second end of the stop elastic portion 4c. Further, the stop elastic portion 4c may be configured to elastically deform in the longitudinal direction of the long member 4g, as in the present embodiment, for example.

As a result, the elastic restoring force of the stop elastic portion 4c is transmitted to the stop movable portion 4b as an upward force by the transmission portion 4d. Then, each stop movable portion 4b moves upward in conjunction with the elastic restoring force of the stop elastic portion 4c. Although not particularly limited, the stop elastic portion 4c may be, for example, a coiled spring as in the present embodiment.

Note that the stopping device 4 may include, for example, an elevator speed governor (hereinafter also simply referred to as "speed governor") 5 that detects the moving speed of the car 2 as in the present embodiment. For example, as in the present embodiment, the speed governor 5 includes an operating portion 6 that is integrated with the movable stop portion 4b and is movable with respect to the fixed stop portion 4a, and in order to prevent movement of the operating portion 6, A stop portion 7 for stopping the action portion 6 may be provided. Although not particularly limited, the operating section 6 may be fixed to the first stop movable section 4b by a fixing member 4j, as in the present embodiment, for example.

As a result, as shown in FIG. 1, the abutment portion 7 abuts and stops the action portion 6, and as shown in FIG. , the stop elastic portion 4c is elastically deformed. Therefore, the elastic restoring force of the stop elastic portion 4c is applied to the stop movable portion 4b and the action portion 6 via the transmission portion 4d.

Specifically, the stop elastic portion 4c applies an upward elastic restoring force in the first direction (see FIG. 3) to move the action portion 6 from the pre-action position to the post-action position. The stop elastic portion 4c applies an upward elastic restoring force to the stop movable portion 4b so as to move the stop movable portion 4b from the standby position to the stop position.

On the other hand, when the contact stop of the action portion 6 by the contact stop portion 7 is released, the action portion 6 and the stop movable portion 4b are subjected to the elastic restoring force of the stop elastic portion 4c, as shown in FIG. 2(b). to move as one. Specifically, the operating portion 6 moves upward in the first direction D1 (see FIG. 3) to the post-operation position, and the stop movable portion 4b moves upward to the stop position.

As a result, the car 2 is stopped on the car rails 3 by the cooperation of the stop movable part 4b and the stop fixed part 4a. In this way, the elastic restoring force of the stop elastic portion 4c is applied to the stop movable portion 4b and the operating portion 6, and when the stop of the operating portion 6 by the stop portion 7 is released, the operating portion 6 The car 2 can be stopped on the car rails 3 by moving to the post-operation position and moving the stop movable part 4b to the stop position.

Although not particularly limited, the first direction D1 in which the action unit 6 moves may be, for example, the upward direction D1 as in the present embodiment. That is, each of the stop movable portion 4b and the operating portion 6 may be configured to move in the upward direction D1, which is the first direction D1.

As shown in FIG. 3, the speed governor 5 includes, for example, a governor wheel 5a rotatably connected to the car frame 2b (see FIGS. 1 and 2) and a governor wheel 5a as in the present embodiment. The weights 5b and 5b that revolve around the revolution axis, the weight connection portion 5c that connects the governor wheel 5a and the weight 5b, and the elastic restoring force in the direction approaching the revolution axis are the weights. A first elastic portion 5d added to 5b may be provided. Although not particularly limited, the first elastic portion 5d can be, for example, a coiled spring as in the present embodiment.

For example, the governor wheel 5a may be arranged so as to contact the car rails 3 as in the present embodiment (see FIG. 1). As a result, the governor wheel 5a rotates as the car 2 moves. Therefore, the faster the moving speed of the car 2 is, the greater the centrifugal force acting on the weight 5b is, so that the position of the weight 5b is farther from the revolution axis. Then, when the car 2 moves at the set speed, the weight 5b is positioned at the set position.

For example, the governor wheel 5a may contact a rail other than the car rail 3, and the governor wheel 5a may rotate as the car 2 moves. Alternatively, for example, an endless ring-shaped governor rope connected to the car 2 may be wound around the outer circumference of the governor wheel 5a, and the governor wheel 5a may rotate as the governor rope runs as the car 2 moves.

As shown in FIGS. 3 to 5, the weight connecting portion 5c serves as a moving portion 8 that moves in the second direction D2 by moving the weight 5b away from the revolution axis as in the present embodiment. may be provided. The speed governor 5 may include, for example, a movement guide portion 5e that guides the moving portion 8 in the second direction D2.

Further, for example, as in the present embodiment, the stop portion 7 is connected to the moving portion 8, and the moving portion 8 includes a stop guide portion 8a that guides the stop portion 7 in the second direction D2. The configuration may be such that Thereby, the stop portion 7 is connected to the moving portion 8 so as to be movable in the second direction D2. The second direction D2 is a direction that intersects with the first direction D1, and is not particularly limited, but may be, for example, a horizontal direction as in the present embodiment.

Further, for example, as in this embodiment, the speed governor 5 includes a second elastic portion 9 that applies an elastic restoring force in a second opposite direction (direction opposite to the second direction D2) D2a to the stop portion 7. Alternatively, the stop portion 7 and the moving portion 8 may be provided with engaging portions 7a and 8b that engage with each other. The second elastic portion 9 may be arranged between the stop portion 7 and the moving portion 8 in the second direction D2, for example.

As a result, the position of the stop portion 7 with respect to the moving portion 8 is held by the movement engagement portion 8b engaging (stopping) the stop engagement portion 7a from the second direction D2. It should be noted that the stop portion 7 and the moving portion 8 are not provided with the engaging portions 7a and 8b that engage with each other, and the second elastic portion 9 is restored (not elastically deformed) to the moving portion 8. A configuration in which the position of the stop portion 7 is held may be employed. Also, although not particularly limited, the second elastic portion 9 can be, for example, a coiled spring as in the present embodiment.

Here, the operation of the operating section 6 will be described with reference to FIGS. 3 and 6 to 8. FIG. Note that the operation of the operation unit 6 is not limited to the following operations.

First, while the stopping elastic portion 4c applies a force in the first direction D1 to the operating portion 6 (see FIGS. 1 and 2), when the moving speed of the car 2 is less than the set speed, as shown in FIG. 3, the abutment portion 7 abuts and stops the action portion 6. As shown in FIG. As a result, movement of the operating portion 6 in the first direction D1 is blocked. At this time, the operating portion 6 is held at the pre-operating position, and the stop movable portion 4b is positioned at the standby position (see FIG. 2(a)).

On the other hand, for example, the moving speed of the car 2 increases and the governor wheel 5a rotates rapidly, so that the weight 5b moves away from the revolution axis against the elastic restoring force of the first elastic portion 5d. . At this time, the position of the stop portion 7 with respect to the moving portion 8 is held at the holding position by the second elastic portion 9 applying an elastic restoring force in the second opposite direction D2a to the stop portion 7 . Therefore, when the amount of elastic deformation of the second elastic portion 9 does not change, for example, when the stop portion 7 is held at the holding position, the stop portion 7 and the moving portion 8 move together in the second direction D2. Moving.

In addition, the motion part 6 may be provided with the rolling body (for example, roller) 6a by which an outer peripheral part is contact-stopped by the stop part 7 like this embodiment, for example. As a result, when the stop portion 7 moves in the second direction D2, the frictional force generated between the stop portion 7 and the operating portion 6 can be reduced. It can be smoothly moved in the direction D2.

Then, when the car 2 moves downward at the set speed and the weight 5b moves to the set position as shown in FIG. located in position. Note that the reference position is when the weight 5b is positioned at the set position and the stop portion 7 is positioned at the holding position (that is, when the stop portion 7 moves integrally with the moving portion 8). , the position of the operating part 6 .

At this time, the force F1 in the first direction D1 applied to the action portion 6 by the stop elastic portion 4c is applied to the action portion 6 by the second elastic portion 9 via the stop portion 7 in the first opposite direction (second direction D2). and opposite direction) becomes larger than the force F1a of D1a. Therefore, as shown in FIG. 7, since the operating portion 6 moves further in the first direction D1, the stop portion 7 receives a force in the second direction D2 from the operating portion 6, thereby causing the second elastic portion 9 to It elastically deforms in the second direction D2. Then, when the operating portion 6 moves in the first direction D<b>1 to the release position, the stop portion 7 releases the stopping of the operating portion 6 .

At this time, since the second elastic portion 9 is elastically deformed, it is possible to suppress the action portion 6 from receiving the elastic restoring force of the first elastic portion 5 d via the stop portion 7 . As a result, it is possible to suppress the movement of the operating portion 6 from being affected by the movement of the weight 5b and the moving portion 8, so that, for example, the movement of the operating portion 6 in the first direction D1 can be made smooth. .

Moreover, although not particularly limited, the elastic modulus of the second elastic portion 9 is preferably smaller than the elastic modulus of the first elastic portion 5d, for example, as in the present embodiment. Accordingly, since the elastic modulus of the second elastic portion 9 is small, the elastic restoring force of the second elastic portion 9 that the action portion 6 receives via the stop portion 7 is reduced. Therefore, it is possible to suppress the movement of the operating part 6 from being affected by the elastic restoring force of the second elastic part 9, so that, for example, the movement of the operating part 6 in the first direction D1 can be further smoothed. can.

Then, as the stop portion 7 releases the stop against the action portion 6, the action portion 6 moves further in the first direction D1 to the post-action position, as shown in FIG. In this way, when the weight 5b moves to the set position, the action part 6 moves in the first direction D1 to the post-action position. Accordingly, the movable stop portion 4b moves upward to the stop position (see FIG. 2(b)). stop.

Therefore, when the car 2 moves at the set speed, the stopping device 4 can stop the car 2 on the car rails 3 without using an electric signal. Although not particularly limited, the set speed may be, for example, higher than the rated speed of car 2 (the maximum speed during normal operation), and may be, for example, 110% to 120% of the rated speed of car 2. .

Here, the configurations of the operating portion 6 and the stop portion 7 will be described with reference to FIGS. 9 and 10. FIG. In addition, the configurations of the operating portion 6 and the stop portion 7 are not limited to the following configurations.

As shown in FIG. 9, for example, the stop portion 7 may include a stop surface 7b extending along the second direction D2 to stop the action portion 6, as in the present embodiment. . Further, for example, as in the present embodiment, when the operating portion 6 moves from the pre-operation position (see FIG. 3) to the release position (see FIG. 7) in the first direction D1, the operating portion 6 and the stop portion 7 may comprise sliding surfaces 6b, 7c that contact each other.

The stop slide surface 7c may be connected to, for example, the end of the stop surface 7b on the second opposite direction D2a side. The sliding surfaces 6b and 7c are concepts that include only ranges S1 and S2 that contact each other when the operating portion 6 is positioned from the pre-operation position to the release position. In the case of rotating like the operation slide surface 6b (rolling element 6a), the contact range is defined assuming that it does not rotate.

Each of the stop slide surface 7c and the operation slide surface 6b may be formed, for example, as in this embodiment, so as to extend in the second opposite direction D2a as it proceeds in the first direction D1. As a result, the operating portion 6 moves in the first direction D1 while the operating slide surface 6b and the stop sliding surface 7c are in contact with each other, so that the operating portion 6 can push the stop portion 7 in the second direction D2. can.

By the way, the elastic restoring force F2a of the second elastic portion 9 in the second opposite direction D2a is applied to the action portion 6 as a force F1a in the first opposite direction D1a via the stop portion 7 . Specifically, as shown in FIG. 10 (the same applies to FIG. 6), when the angle between the reference direction D3 and the second opposite direction D2a is defined as a component force angle θ1, the following equation gives the following: The force F1a in the first opposite direction D1a is the product of the force F2a in the second opposite direction D2a and the tangent (tan θ) of the component force angle θ1. The reference direction D3 is the normal direction at the contact position of each slide surface 6b, 7c.
F1a=F2a×tan θ1

Therefore, each of the abutment slide surface 7c and the operation slide surface 6b may be formed, for example, only by a convex surface that goes in the second opposite direction D2a as it goes in the first direction D1, as in the present embodiment. . As a result, as shown in FIGS. 10(a) to 10(b), as the operation portion 6 moves from the pre-operation position to the release position, that is, in the first direction D1, The component force angle θ1 becomes smaller.

Therefore, as the operating portion 6 moves from the pre-operating position to the released position, that is, as the operating portion 6 moves in the first direction D1, the elastic restoring force F2a in the second opposite direction D2a increases in the first opposite direction D1a. The ratio tan θ1 of the force F1a becomes smaller. In addition, although the magnitude of the elastic restoring force F2a in the second opposite direction D2a may change, in FIGS. The magnitude of the elastic restoring force F2a in the opposite direction D2a is shown as the same magnitude.

Then, for example, as shown in FIG. 6, when the operating portion 6 is positioned between the reference position and the release position (see FIG. 7), the stopping elastic portion 4c (see FIGS. 1 and 2) is greater than the force F1a in the first opposite direction D1a that the second elastic portion 9 applies to the action portion 6 via the stop portion 7. Thereby, the operation part 6 continuously moves in the first direction D1 from the reference position to the release position without stopping.

When the action part 6 moves to the release position, the contact stop part 7 releases the contact stop of the action part 6, so that the action part 6 continuously moves to the post-action position. Therefore, since the operating part 6 continuously moves from the reference position to the post-action position without stopping, the movement of the operating part 6 can be made smooth.

Although not particularly limited, the relationship between the forces F1, F1a, and F2a can be freely set by, for example, the configuration of the stop elastic portion 4c, the second elastic portion 9, and the slide surfaces 6b and 7c. . For example, the natural length (length when restored), spring coefficient, and elastic deformation of the elastic portions 4c and 9 when the stop movable portion 4b is positioned at the stop position (the action portion 6 is positioned at the pre-action position) By adjusting the amount, etc., the relationship between the forces F1, F1a, F2a can be set.

As described above, the elevator 1 includes the elevator governor 5 as in the present embodiment.

As in the present embodiment, the elevator governor 5 includes a governor wheel 5a that rotates as the car 2 travels, and a governor wheel 5a that rotates about the revolution axis as the governor wheel 5a rotates. and the weight 5b that moves away from the revolution axis by centrifugal force, and the force F1 in the first direction D1 acts so as to move in the first direction D1 from the pre-operation position to the post-operation position. and a stop portion 7 that abuts and stops the operating portion 6 at the pre-operation position in order to prevent movement of the operating portion 6 in the first direction D1. It is said that the portion 7 moves in a second direction D2 intersecting the first direction D1 by moving the weight 5b away from the revolution axis in order to release the stop of the action portion 6. configuration is preferred.

According to such a configuration, the movement of the operating portion 6 in the first direction D1 is prevented by the abutment portion 7 stopping the operating portion 6 at the pre-operation position. It is held in the pre-operating position. As the weight 5b moves away from the revolution axis, the stop portion 7 moves in the second direction D2.

As a result, when the weight 5b moves to the set position, the stop portion 7 releases the stop of the action portion 6, so that the action portion 6 moves in the first direction D1 toward the post-action position. Therefore, when the weight 5b is moved to the set position, the operating portion 6 can be operated.

Further, as in the present embodiment, the elevator governor 5 is connected to the first elastic portion 5d that applies an elastic restoring force in the direction toward the revolution axis to the weight 5b, and to the stop portion 7, In order to hold the position of the moving portion 8 moving in the second direction D2 by moving the weight 5b away from the revolution axis and the stop portion 7 with respect to the moving portion 8, the second a second elastic portion 9 that applies an elastic restoring force F2a in a second opposite direction D2a opposite to the direction D2 to the stop portion 7; It is preferable that the moving part 8 moves in the second direction D2 by being elastically deformed in the second direction D2.

According to such a configuration, the first elastic portion 5d applies an elastic restoring force to the weight 5b in a direction approaching the revolution axis. As a result, the governor wheel 5a rotates, and the weight 5b moves away from the revolution axis against the elastic restoring force of the first elastic portion 5d.

At this time, the position of the stop portion 7 with respect to the moving portion 8 is held by the second elastic portion 9 applying the elastic restoring force F2a in the second opposite direction D2a to the stop portion 7 . Therefore, when the amount of elastic deformation of the second elastic portion 9 does not change, the stop portion 7 moves together with the moving portion 8 in the second direction D2.

On the other hand, since the second elastic portion 9 is elastically deformed in the second direction D<b>2 , the stop portion 7 moves in the second direction D<b>2 with respect to the moving portion 8 . As a result, since it is possible to suppress the action portion 6 from receiving the elastic restoring force of the first elastic portion 5 d via the stop portion 7 , the movement of the action portion 6 is caused by the movement of the weight 5 b and the movement portion 8 . You can limit being affected.

Further, as in the present embodiment, in the elevator governor 5, it is preferable that the elastic modulus of the second elastic portion 9 is smaller than the elastic modulus of the first elastic portion 5d.

According to such a configuration, since the elastic modulus of the second elastic portion 9 is smaller than the elastic modulus of the first elastic portion 5 d , the movement portion 6 receives the force of the second elastic portion 9 via the stop portion 7 . The elastic restoring force becomes smaller. Thereby, it is possible to suppress the movement of the action portion 6 from being affected by the elastic restoring force of the second elastic portion 9 .

Further, as in the present embodiment, the elevator governor 5 includes an elastic portion (this embodiment In the embodiment, a second elastic portion 9 is further provided, and the stop portion 7 is adapted to the operating portion 6 when the operating portion 6 is positioned at a release position between the pre-operation position and the post-operation position. 6 is released, and the stop portion 7 is formed by a stop surface 7b extending along the second direction D2 and a stop surface 7b extending along the second direction D2 and the second 2 a contact sliding surface 7c connected to the end on the opposite direction D2a side and in contact with the operating portion 6 when the operating portion 6 moves in the first direction from the pre-operation position to the release position; The operation portion 6 includes an operation slide surface 6b that contacts the stop slide surface 7c when moving in the first direction D1 from the pre-operation position to the release position. It is preferable that each of the operation slide surfaces 6b is formed so as to extend in the second opposite direction D2a as it extends in the first direction D1.

According to such a configuration, the elastic restoring force F2a of the elastic portion 9 in the second opposite direction D2a is applied to the action portion 6 as the force F1a in the first opposite direction D1a via the stop portion 7 . By moving the operating portion 6 in the first direction D1 while the operating slide surface 6b and the stop sliding surface 7c are in contact with each other, the operating portion 6 can push the stop portion 7 in the second direction D2. .

Further, as in the present embodiment, in the elevator governor 5, when the operation portion 6 is positioned between the reference position between the pre-operation position and the release position and the release position. Further, the force F1 acting on the operating portion 6 in the first direction D1 is applied to the operating portion 6 by the elastic portion (second elastic portion in this embodiment) 9 via the stop portion 7. Preferably, the force F1a is greater than the force F1a in the first opposite direction D1a opposite to the first direction D1.

According to such a configuration, when the operating portion 6 is positioned between the reference position and the release position, the force F1 acting on the operating portion 6 in the first direction D1 is applied to the elastic portion 9 via the stop portion 7. is larger than the force F1a in the first opposite direction D1a applied to the operating portion 6, the operating portion 6 continuously moves from the reference position to the release position. As a result, the operating portion 6 can be continuously moved from the reference position to the post-operation position without stopping.

Further, as in the present embodiment, in the elevator governor 5, one of the contact slide surface 7c and the operating slide surface 6b (in this embodiment, both slide surfaces) 6b and 7c , is formed only by a convex surface that goes in the second opposite direction D2a as it goes in the first direction D1. It is preferable to form at least one of a convex surface and a flat surface (in this embodiment, only a convex surface) so as to go in the second opposite direction D2a as it goes to D1.

According to such a configuration, the elastic restoring force F2a of the elastic portion 9 in the second opposite direction D2a is applied to the action portion 6 as the force F1a in the first opposite direction D1a via the stop portion 7 . As the operating portion 6 moves in the first direction D1, the ratio tan θ1 of the force F1a in the first opposite direction D1a to the elastic restoring force F2a in the second opposite direction D2a becomes smaller.

The elevator 1 and the elevator governor 5 are not limited to the configurations of the above-described embodiments, nor are they limited to the above-described effects. Further, the elevator 1 and the elevator speed governor 5 can of course be modified in various ways without departing from the gist of the present invention. For example, it is of course possible to arbitrarily select one or a plurality of configurations, methods, etc., according to various modified examples described below and employ them in the configurations, methods, etc., according to the above-described embodiment.

(1) In the elevator governor 5 according to the above-described embodiment, the elastic restoring force of the stop elastic portion 4c is applied to the operating portion 6, so that the force F1 acts on the operating portion 6 in the first direction D1. This is the configuration. However, the elevator governor 5 is not limited to such a configuration. For example, a configuration may be adopted in which a force F1 in the first direction D1 (for example, downward) acts on the operating section 6 due to the weight of the operating section 6 (own gravity).

(2) In the elevator governor 5 according to the above-described embodiment, the operating portion 6 moves from the pre-operating position to the post-operating position in the first direction D1 integrally with the stop movable portion 4b. It is a configuration that However, the elevator governor 5 is not limited to such a configuration. For example, a governor rope is wound around the outer periphery of the governor wheel 5a, and the operating part 6 grips the governor rope by moving in the first direction D1 from the pre-operation position to the post-operation position, thereby allowing the governor rope to run. It may be configured to stop.

(3) Further, in the elevator governor 5 according to the above-described embodiment, the stop portion 7 is connected to the moving portion 8 so as to be movable in the second direction D2. However, the elevator governor 5 is not limited to such a configuration.

For example, the stop portion 7 may be configured to be immovably fixed to the moving portion 8 . In such a configuration, the first elastic portion 5d may be configured to apply the elastic restoring force F2a in the second opposite direction D2a to the stop portion 7 .

(4) In addition, in the elevator governor 5 according to the above-described embodiment, the stop portion 7 receives a force against the elastic restoring force of the second elastic portion 9 , thereby causing the moving portion 8 to move toward the second elastic portion 8 . It is configured to move in the direction D2. However, the elevator governor 5 is not limited to such a configuration. For example, the second direction D2 may be the upward direction, and the stop portion 7 may move in the second direction D2 with respect to the moving portion 8 by receiving a force against the gravity of the stop portion 7. good.

(5) Further, in the elevator governor 5 according to the above embodiment, the elastic modulus of the second elastic portion 9 is smaller than the elastic modulus of the first elastic portion 5d. However, the elevator governor 5 is not limited to such a configuration. For example, the elastic modulus of the second elastic portion 9 may be the same as the elastic modulus of the first elastic portion 5d. Further, for example, the elastic modulus of the second elastic portion 9 may be larger than the elastic modulus of the first elastic portion 5d.

(6) In the elevator governor 5 according to the above embodiment, the force F1 in the first direction D1 acting on the operating portion 6 when the operating portion 6 is positioned between the reference position and the release position is greater than the force F1a in the first opposite direction D1a that the second elastic portion 9 applies to the action portion 6 via the stop portion 7. However, the elevator governor 5 is not limited to such a configuration.

For example, the force F1 in the first direction D1 is the same as the force F1a in the first opposite direction D1a when the operating portion 6 is located at any position between the reference position and the release position. may be configured. Further, for example, when the operating portion 6 is located at any position between the reference position and the release position, the force F1 in the first direction D1 is smaller than the force F1a in the first opposite direction D1a. It may be configured to be

(7) In addition, in the elevator governor 5 according to the above-described embodiment, both the contact sliding surface 7c and the operating sliding surface 6b are convex surfaces that go in the second opposite direction D2a as they go in the first direction D1. It is a configuration that is formed only by However, the elevator governor 5 is not limited to such a configuration.

(7-1) For example, as shown in FIG. 11, the action slide surface 6b is formed only by a convex surface that goes in the second opposite direction D2a as it goes in the first direction D1, and the stop slide surface 7c is formed in the first direction D1. It may be configured such that it is formed only by a plane that goes in the second opposite direction D2a as it goes in one direction D1. 11, for example, the stop slide surface 7c may be formed with a convex surface and a flat surface that go in the second opposite direction D2a as it goes in the first direction D1.

According to such a configuration, as shown in FIGS. 12(a) to 12(b), the action portion 6 moves from the pre-action position to the release position, that is, the action portion 6 moves in the first direction D1. As a result, the component force angle θ1 becomes smaller. Accordingly, the ratio tan θ1 of the force F1a in the first opposite direction D1a to the elastic restoring force F2a in the second opposite direction D2a becomes smaller.

(7-2) Further, for example, as shown in FIG. 13, the stop sliding surface 7c is formed only by a convex surface that goes in the second opposite direction D2a as it goes in the first direction D1, and the operating sliding surface 6b is , may be formed only by planes that go in the second opposite direction D2a as they go in the first direction D1. 13, for example, the operation slide surface 6b may be formed with a convex surface and a flat surface that go in the second opposite direction D2a as it goes in the first direction D1.

According to such a configuration, as shown in FIGS. 14(a) to 14(b), the operation portion 6 moves from the pre-operation position to the release position, that is, the operation portion 6 moves in the first direction D1. As a result, the component force angle θ1 becomes smaller. Accordingly, the ratio tan θ1 of the force F1a in the first opposite direction D1a to the elastic restoring force F2a in the second opposite direction D2a becomes smaller.

(7-3) Further, for example, each of the stop slide surface 7c and the operation slide surface 6b may be formed only by a flat surface that goes in the second opposite direction D2a as it goes in the first direction D1. good. Further, for example, at least one of the stop slide surface 7c and the operation slide surface 6b may be configured to have a concave surface that goes in the second opposite direction D2a as it goes in the first direction D1.

(8) Further, in the elevator governor 5 according to the above-described embodiment, the first direction D1 in which the operating portion 6 moves is the same as the moving direction of the stop movable portion 4b and is upward. Configuration. However, the elevator governor 5 is not limited to such a configuration. For example, the first direction D1 may be a direction different from the movement direction of the stop movable portion 4b. Also, the first direction D1 may be, for example, the downward direction, or may be, for example, the horizontal direction.

(9) Further, in the elevator governor 5 according to the above embodiment, the first direction D1 in which the operating portion 6 moves and the second direction D2 in which the stop portion 7 moves are linear directions. This is the configuration. However, the elevator governor 5 is not limited to such a configuration. For example, at least one of the first direction D1 and the second direction D2 may be a curved direction (for example, a direction in which the trajectory of movement is a predetermined circular arc).

DESCRIPTION OF SYMBOLS 1... Elevator 2... Car 2a... Car room 2b... Car frame 3... Car rail 4... Stop device 4a... Stop fixing part 4b... Stop movable part 4c... Stop elastic part 4d... Transmission part , 4e... First rotating member 4f... Second rotating member 4g... Long member 4h... First holding member 4i... Second holding member 4j... Fixed member 5... Elevator speed governor 5a... Governor wheel 5b Weight 5c Weight connection portion 5d First elastic portion 5e Movement guide portion 6 Action portion 6a Rolling element 6b Action slide surface 7 Stopping portion 7a Stopping engagement portion 7b Stopping surface 7c Stopping slide surface 8 Moving portion 8a Stopping guide portion 8b Moving engagement portion 9 Second elastic portion D1 First direction , D1a...first opposite direction, D2...second direction, D2a...second opposite direction, D3...reference direction, Z...vertical direction

Claims (7)

a governor wheel that rotates as the car travels;
a weight that revolves around the revolution axis as the governor wheel rotates and moves away from the revolution axis due to centrifugal force;
an action part on which a force in the first direction acts so as to move in the first direction from the pre-action position to the post-action position;
a stop portion for stopping the action portion at the pre-action position in order to prevent movement of the action portion in the first direction;
The stop portion moves in a second direction intersecting the first direction by moving the weight away from the axis of revolution in order to release the stop of the motion portion. speed machine. a first elastic portion that applies an elastic restoring force in a direction approaching the revolution axis to the weight;
a moving part that moves in the second direction by moving the weight away from the revolution axis;
a second elastic portion that applies an elastic restoring force in a second opposite direction opposite to the second direction to the stop portion in order to hold the position of the stop portion with respect to the moving portion;
2. The elevator governor according to claim 1, wherein said stop portion moves in said second direction with respect to said moving portion when said second elastic portion elastically deforms in said second direction. 3. The elevator governor according to claim 2, wherein the elastic modulus of said second elastic portion is smaller than the elastic modulus of said first elastic portion. further comprising an elastic portion that applies an elastic restoring force in a second opposite direction opposite to the second direction to the stop portion;
The stop portion releases the stop of the action portion when the action portion is positioned at a release position between the pre-action position and the post-action position, and
The stop portion is connected to a stop surface extending along the second direction and an end portion of the stop surface on the side opposite to the second direction in order to stop the action portion. a stop slide surface that contacts the operating portion when the portion moves in the first direction from the pre-operating position to the released position;
the operating portion includes an operating slide surface that contacts the stop slide surface when moving in the first direction from the pre-operation position to the release position;
4. The elevator adjustment according to any one of claims 1 to 3, wherein each of said stop slide surface and said action slide surface is formed to go in said second opposite direction as it goes in said first direction. speed machine. The force acting on the operating portion in the first direction when the operating portion is positioned between a reference position between the pre-operating position and the released position and the released position is equal to the elastic portion is greater than a force in a first opposite direction opposite to said first direction applied to said action portion via said abutment portion. one of the contact slide surface and the operation slide surface is formed only by a convex surface that goes in the second opposite direction as it goes in the first direction;
6. The invention according to claim 4, wherein the other of said stop sliding surface and said operating sliding surface is formed at least one of a convex surface and a flat surface that goes in said second opposite direction as it goes in said first direction. elevator speed governor. An elevator comprising the elevator governor according to any one of claims 1 to 6.

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