JP4659409B2 - Elevator governor - Google Patents

Description

  The present invention relates to an elevator governor, and more particularly to an elevator governor capable of keeping the overall shape small.

  FIG. 7 shows an example of a conventional catch-type elevator speed governor 1, and its mechanism is shown below.

  The elevator governor 1 has a sheave 2 and a ratchet 3 attached to the sheave 2, and a claw 4 is attached to the sheave 2.

  A rod 5 is attached to the ratchet 3, and a shoe base 7 having a shoe 10 is attached to the tip of the rod 5. A coiled spring 6 that presses the shoe base 7 is provided on the extended line of the rod 5, and this spring 6 is held by a stopper 6a.

  The sheave 2, ratchet 3, and shoe base 7 are all rotatably attached to the governor base 9.

  As described above, in the elevator governor shown in FIG. 7, the spring 6 is attached to the upper portion of the shoe base 7 on the extended line of the rod 5. Therefore, the shape of the elevator governor 1 is increased by the length of the spring 6.

  In such a case, it is required to suppress the shape of the elevator governor.

  The present invention has been made in view of the above, and an object of the present invention is to provide an elevator governor that can keep the overall shape small.

The present invention relates to a sheave that is pivotably attached to a governor base and has a claw, a ratchet that is coaxially disposed on the sheave and that rotates in synchronization with the sheave and is attached to the ratchet. A rod base and a shoe base that is pivotally attached to the governor base and has a shoe that presses the governor rope spanned over the sheave;
An eccentric roller that is rotatably attached to the tip of the rod via a single shaft and presses the shoe base, and an eccentric roller mounting base that is rotatably connected to the other shaft of the eccentric roller and has the other end attached to the governor base. And a spring for connecting the eccentric roller and the governor base, and the shoe base and the eccentric roller mounting base are arranged in parallel to each other and orthogonal to the rod. It is.

  The present invention is an elevator governor characterized in that a notch is formed in a portion of the eccentric roller opposite to the shoe base.

  The present invention is an elevator governor characterized in that a plurality of springs are provided between an eccentric roller and a governor base.

The present invention comprises a sheave that is pivotally attached to a governor base and has a claw;
A ratchet that is arranged coaxially with the sheave and that rotates in synchronism with the sheave claw, a rod attached to the ratchet, and a governor base that is pivotally attached to the sheave. And a shoe base having a shoe for pressing a governor rope, wherein the rod extends through the shoe base, and a leaf spring is provided at the tip of the rod to press the shoe base. .

  The present invention relates to a sheave that is pivotally attached to a governor base and has a claw, a ratchet that is coaxially disposed on the sheave and that is engaged with the claw of the sheave and rotates synchronously with the sheave, and is attached to the ratchet. And a shoe base having a shoe that is rotatably attached to the governor base and has a shoe that presses the governor rope spanned over the sheave. A lever that is rotatably attached to the governor base is attached to the tip of the rod. A speed governor for an elevator, wherein the lever and the shoe base are mounted concentrically on a stiff field base, and a spring is interposed between the lever and the shoe base.

  As described above, according to the present invention, it is possible to reduce the size of the elevator governor as a whole as compared with the case where the coil spring is provided on the extension line of the rod.

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

  1 to 6 are views showing an embodiment of a governor for an elevator according to the present invention.

  As shown in FIG. 1, an elevator governor 1 includes a governor base 9, a sheave 2 that is rotatably attached to the governor base 9 and has a claw 4, and is disposed coaxially with the sheave 2 and has a claw of the sheave 2. 4, and a ratchet 3 that rotates in synchronization with the sheave 2.

  A rod 5 is attached to the ratchet 3, and a shoe base 7 that is rotatably attached to a governor base 9 via a rotation shaft 7 a is disposed on the tip side of the rod 5. The shoe base 7 has a shoe 10 for pressing a governor rope 11 hung on the sheave 2.

  An eccentric roller 14 is attached to the tip of the rod 5 via one shaft 14a of the eccentric roller 14, and an eccentric roller mounting base 15 is rotatably attached to the other shaft 14b of the eccentric roller 14. The eccentric roller mounting base 15 is rotatably mounted on the governor base 9 via a rotating shaft 15a.

  Further, the eccentric roller 14 presses the shoe base 7, and the shoe base 7 presses the governor rope 11 hung around the sheave 2 by the shoe 10.

  A coiled spring 6 is attached between the eccentric roller 14 and the governor base 9 to rotate the eccentric roller 14 about the other shaft 14b and pull it away from the shoe base.

  The shoe base 7, the eccentric roller mounting base 15, and the spring 6 are arranged in parallel to each other and are orthogonal to the rod 5.

  Next, the operation of the present embodiment having such a configuration will be described with reference to FIGS.

  1 and 6, the claw 4 of the sheave 2 engages with the ratchet 3 during the governor operation, and the ratchet 3 rotates together with the sheave 2. The rod 5 is pulled by the rotation of the ratchet 3, and the rod 5 pulls the one shaft 14 a of the eccentric roller 14. At this time, the eccentric roller 14 rotates counterclockwise against the force of the spring 6 around the other shaft 14b. The eccentric roller 14 that rotates counterclockwise presses the shoe base 7, and the shoe 10 attached to the shoe base 7 presses the governor rope 11. The governor rope 11 operates the cage or C / W safety link 12 by the pressing force, and the cage or C / W 13 is safely stopped by the cage or / W safety link 12.

  As described above, according to the present embodiment, the shoe base 7, the eccentric roller mounting base 15, and the spring 6 are arranged in parallel to each other, and the shoe base 7, the eccentric roller mounting base 15, and the spring 6 are respectively connected to the rod 5. Since the spring 6 is arranged on the extension line of the rod 5, the shape of the elevator governor as a whole can be kept small.

  Next, a modified example of the elevator governor according to the present invention will be described with reference to FIG.

  The modification shown in FIG. 2 is substantially the same as the embodiment shown in FIG. 1 except that the shape of the eccentric roller 14 is different.

  In FIG. 2, the same parts as those of the embodiment shown in FIG.

  As shown in FIG. 2, the eccentric roller 14 is connected to the rod 5 through one shaft 14a and is connected to the eccentric roller mounting base 15 through the other shaft 14b.

  Further, a portion of the eccentric roller 14 opposite to the shoe base 7 is notched to form a notch portion 16. For this reason, the eccentric roller 14 has a cam shape that contacts the shoe base 7.

  In FIG. 2, since the notch 16 is formed in a portion of the eccentric roller 14 opposite to the shoe base 7, the elevator governor 1 can be further downsized.

  Next, a further modification of the governor for elevator according to the present invention will be described with reference to FIG.

  In the modification shown in FIG. 3, two springs 6 are provided in parallel between the eccentric roller 14 and the governor base 9, and the others are substantially the same as the embodiment shown in FIG.

  In FIG. 3, the same parts as those of the embodiment shown in FIG.

  Next, referring to FIG. 4, a further modification of the elevator governor according to the present invention will be described.

  In the modification shown in FIG. 4, the rod 5 extends through the shoe base 7, and a leaf spring 18 that presses the shoe base 7 toward the sheave 2 is provided at the tip of the rod 5.

  For this reason, the leaf spring 18 is held between the stopper 18 a and the shoe base 7.

  In FIG. 4, the same parts as those of the embodiment shown in FIG.

  In FIG. 4, the rod 5 is pulled during the governor operation, and a pressing force is applied from the leaf spring 18 to the shoe base 7 by the rod 5.

  When a pressing force is applied to the shoe base 7, the shoe 10 of the shoe base 7 presses the governor rope 11.

  As shown in FIG. 4, the leaf spring 18 is thinner than the coil spring, so that the overall shape of the elevator governor can be kept small.

  Next, referring to FIG. 5, a further modification of the elevator governor according to the present invention will be described.

  In the modification shown in FIG. 5, a lever 19 is rotatably attached to the tip of the rod 5, and the lever 19 is connected to the governor base 9 via a rotating shaft 19a.

  The lever 19 and the shoe base 7 are attached to the governor base 9 via rotating shafts 19a and 7a, and the rotating shafts 19a and 7a are arranged concentrically with each other.

  The rotating shafts 19 a and 7 a are provided with a coiled spring 17 between the lever 19 and the shoe base 7.

  In FIG. 5, the same parts as those of the embodiment shown in FIG.

  In FIG. 5, the rod 5 is pulled during the governor operation, and the lever 19 is rotated by the rod 5. When a rotational force is applied to the lever 19, a pressing force is applied to the shoe base 7 via the spring 17, and the shoe 10 of the shoe base 7 presses the governor rope 11.

  As shown in FIG. 5, since the spring 17 is attached to the rotating shafts 19a and 7a in the governor base 9, the overall shape of the elevator governor 1 can be reduced in size.

The figure which shows one Embodiment of the governor for elevators by this invention. The figure which shows the modification of the governor for elevators by this invention. The figure which shows the other modification of the governor for elevators by this invention. The figure which shows the other modification of the governor for elevators by this invention. The figure which shows the other modification of the governor for elevators by this invention. The figure which shows the effect | action at the time of the governor operation | movement of the governor for elevators. The figure which shows the conventional governor for elevators.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator governor 2 Sheave 3 Ratchet 4 Claw 5 Rod 6 Coil spring 7 Shoe base 9 Governor base 10 Shoe 11 Governor rope 14 Eccentric roller 14a One axis 14b of eccentric roller 15 Eccentric roller mounting base 16 Eccentric roller mounting base 16 Plate spring 17 Coiled spring 19 Lever

Claims (4)

A sheave that is pivotally attached to the governor base and has claws;
A ratchet that is coaxially disposed on the sheave and that engages with the sheave claw and rotates synchronously with the sheave;
A rod attached to the ratchet;
A shoe base that is pivotally attached to the governor base and has a shoe that presses the governor rope stretched over the sheave;
An eccentric roller that is rotatably attached to the tip of the rod via one axis and presses the shoe base;
An eccentric roller mounting base having one end rotatably connected to the other shaft of the eccentric roller and the other end mounted to the governor base;
A spring connecting the eccentric roller and the governor base,
The speed governor for an elevator, wherein the shoe base and the eccentric roller mounting base are arranged in parallel to each other and perpendicular to the rod.   The elevator governor according to claim 1, wherein a notch is formed in a portion of the eccentric roller opposite to the shoe base.   3. The elevator governor according to claim 1, wherein a plurality of springs are provided between the eccentric roller and the governor base. A sheave that is pivotally attached to the governor base and has claws;
A ratchet that is arranged coaxially with the sheave and that engages the claw of the sheave and rotates synchronously with the sheave;
A rod attached to the ratchet;
A shoe base that is pivotally attached to the governor base and has a shoe that presses the governor rope spanned across the sheave;
At the tip of the rod, a lever that is rotatably attached to the governor base is attached rotatably,
A speed governor for an elevator, wherein the lever and the shoe base are concentrically attached to the governor base, and a spring is interposed between the lever and the shoe base.

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