JPWO2020188786A1 - Elevator buffer cap mounting device - Google Patents

Abstract

A dustproof cover that covers the buffer of the shock absorber in the buffer cap fixing device of the elevator that detachably fixes the buffer cap that supports the car or weight of the elevator so that it does not descend from the position of the upper end of the shock absorber. One of them is fixed near the upper end of the shock absorber, and it is usually placed together with the dustproof cover, and when in use, it is placed in a state of extending upward from the upper end of the shock absorber, and the buffer cap. The upper end portion of the buffer cap is provided with a notch portion to which the elastic body can engage, and the elastic body engages with the notch portion during use to urge the upper end portion of the buffer cap in the downward direction from above. It is characterized by that.

Description

The present invention relates to a buffer cap that limits the descent of an elevator car or weight so that it does not come into contact with the shock absorber.

Since the elevator cannot be operated when the buffer cap is attached to the car side shock absorber or the weight side shock absorber, the lower surface of the car or the lower surface of the weight does not collide with the buffer, and damage to the car etc. can be prevented. There is an elevator (Patent Document 1). In addition, an elevator oil buffer (Patent Document 2) that suppresses damage due to expansion and contraction of a dust-proof plunger that prevents foreign matter from adhering to and invading the gap between the outer peripheral portion of the plunger and a portion adjacent thereto. be.

JP-A-2007-254103 JP-A-2004-10277

However, when the buffer cap is used in a shock absorber having such a dustproof structure (cover), in order to attach the buffer cap, it is necessary to remove the dustproof cover once and replace the removed cover after use. Therefore, there is a problem that it takes time and effort to use the buffer cap. Further, there is a problem that it takes time and effort to secure a place and an instrument for temporarily storing the dustproof cover removed from the shock absorber before using the buffer cap.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an elevator in which a buffer cap can be attached to and detached from the shock absorber without removing the dustproof cover attached to the shock absorber from the shock absorber. It is to provide a buffer cap mounting device.

The present invention covers the buffer of the shock absorber in an elevator buffer cap mounting device that detachably attaches a buffer cap that restricts descent so that the elevator car or weight does not come into contact with the shock absorber at the upper end of the shock absorber. An elastic body with a dustproof cover and one fixed near the top of the shock absorber, normally placed with the dustproof cover and the other in use with the other extended above the top of the shock absorber. And a notch provided at the upper end of the buffer cap to which the elastic body can engage, the elastic body is integrally formed with the dustproof cover and can be expanded and contracted together with the dustproof cover. It is characterized in that it engages with the notch during use and urges the upper end of the buffer cap from above in the downward direction.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to realize an elevator buffer cap attachment device in which a buffer cap can be attached to the shock absorber without removing the dustproof cover attached to the shock absorber from the shock absorber.

It is a front view which shows the whole buffer cap attachment apparatus (normal time) according to Embodiment 1 of this invention. It is a front view which shows the buffer cap attachment device (at the time of assembly) of FIG. 1 according to Embodiment 1 of this invention. It is a front view which shows the buffer cap attachment device (at the time of use) of FIG. 1 according to Embodiment 1 of this invention. It is a front view (enlarged view) which shows the main part of the buffer cap attachment device (normal time) of FIG. 1 according to Embodiment 1 of this invention. It is a front view (enlarged view) which shows the main part of the buffer cap attachment device (at the time of assembly) of FIG. 1 according to Embodiment 1 of this invention. It is a front view (enlarged view) which shows the main part of the buffer cap attachment device (at the time of use) of FIG. 1 according to Embodiment 1 of this invention. It is a front view (enlarged view) which shows the elastic body of the buffer cap attachment device (at the time of use) of FIG. 6 according to Embodiment 1 of this invention. It is a front view (enlarged view) which shows the buffer and the buffer cap of the buffer cap attachment device (at the time of assembly) of FIG. 5 according to Embodiment 1 of this invention. It is a front view (enlarged view) which shows the main part of the buffer cap attachment device (normal time) of FIG. 1 according to Embodiment 2 of this invention. It is a front view (enlarged view) which shows the main part of the buffer cap attachment device (at the time of assembly) of FIG. 1 according to Embodiment 2 of this invention. It is a front view (enlarged view) which shows the main part of the buffer cap attachment device (at the time of use) of FIG. 1 according to Embodiment 2 of this invention.

Embodiment 1.
1 to 8 show the elevator buffer cap mounting device according to the first embodiment of the present invention, FIG. 1 is a front view showing the entire buffer cap mounting device (normal time), and FIG. 2 is a buffer cap mounting device. (At the time of assembly) is a front view, and FIG. 3 is a front view showing a buffer cap mounting device (at the time of use). FIG. 4 is a front view (enlarged view) showing a main part of the buffer cap mounting device (normal time), FIG. 5 is a front view (enlarged view) showing a main part of the buffer cap mounting device (at the time of assembly), and FIG. 6 is a buffer. A front view (enlarged view) showing a main part of the cap mounting device (when used), FIG. 7 is a front view (enlarged view) showing an elastic body of the buffer cap mounting device (when used), and FIG. 8 is a buffer cap mounting device (enlarged view). It is a front view (enlarged view) which shows the shock absorber and the buffer cap (at the time of assembly). It should be noted that the elevator landing, equipment installed in the hoistway, etc. are not shown.

In the figure, the shock absorber 1 is an oil buffer and is provided in the hoistway 2 (pit 3) of the elevator. The shock absorber 1 is a device that absorbs an impact generated when a car 4 or a weight 5 falls from above and collides with the weight. Since the shock absorber 1 is permanently installed in the pit 3, dust and dirt easily adhere to the hydraulic mechanism of the shock absorber 4. If dust or dust adhering to the buffer portion 6 enters the inside of the shock absorber 1, the buffer 1 may not be able to perform a predetermined function. Therefore, a dustproof cover 7 is attached to the shock absorber 6 to prevent dust and dirt from adhering to the cushioning portion 6. The dustproof cover 7 has a cover portion 8 made of a soft cloth (vinyl or cloth), and is attached so as to cover the entire cushioning portion 6.

A spring 9 is integrally formed in the cover portion 8 in a mesh pattern, and the fabric of the cover portion 8 is arranged so as to expand and contract as the spring 9 expands and contracts. One of the springs 9 is fixed near the upper end of the shock absorber 1, and is normally arranged together with the dustproof cover 7, and the other is arranged in a state of extending upward from the upper end of the shock absorber 1 during use. There is. Further, the size of the dustproof cover 7 is formed to be smaller than the size of the cushioning portion 6 before being attached to the cushioning portion 6 (in a state where the spring 9 is contracted). Therefore, when the dustproof cover 7 is attached to the cushioning portion 6, the cover portion 8 is attached so as to cover the entire cushioning portion 6 while extending the spring 9, so that the elastic force of the spring 9 acts on the cover portion 8 to cover the cushioning portion 6. It is installed so that it contracts according to the shape of.

Since the buffer cap 10 is not normally used, it is stored alone (not shown) in the hoistway 2 or the like when it is not used. When the buffer cap 10 is used, that is, when the car 4 or the weight 5 which has been lowered to a predetermined position is temporarily supported so as not to be lowered from the predetermined position, the buffer cap 10 is attached to the upper end portion of the shock absorber 1. .. The upper end of the buffer cap 10 is provided with two notches 11 to which the spring 9 can be engaged. The cutout portion 11 is arranged diagonally when the buffer cap 10 is viewed from above. The lower end of the buffer cap 10 is provided with downwardly projecting protrusions 12 at four locations, and the upper end of the shock absorber 1 is provided with grooves 13 capable of engaging with the protrusions 12 at four locations. ing. The grooves 13 are arranged diagonally when the shock absorber 1 is viewed from above.

Since the buffer cap 10 is formed in a simple cylindrical shape, the buffer cap 10 is arranged at the upper end of the shock absorber 1, and when the car 4 or the weight 5 abuts from the upper portion and a load is applied, the buffer cap 10 is applied. The lower end of the 10 may slide at the upper end of the buffer 1, and the buffer cap 10 may deviate or tilt from a preset position. Therefore, the protrusion 12 and the groove 13 are engaged with each other, and the buffer cap 10 is arranged at the upper end of the shock absorber 1. Further, when the buffer cap 10 is used, the dustproof cover 7 is removed from the buffer portion 4 and is pulled up and arranged toward the upper end portion side of the shock absorber 1. Further, when the dustproof cover 7 is pulled up to the upper end side of the shock absorber 1, the front and back sides of the dustproof cover 7 in a state of being attached to the shock absorber 4 are turned upside down, and the lower part is pulled up to the upper part, so that the upper and lower parts are raised and lowered. They are arranged in a swapped state. Here, the spring 9 arranged on the upper portion of the dustproof cover 7 arranged on the upper end side of the shock absorber 1 is further stretched upward and is hooked on the cutout portion 11 of the buffer cap 10. As a result, the elastic force of the spring 9 acts on the notch portion 11, and the buffer cap 10 is urged to the upper end portion of the shock absorber 1.

Next, the operation of the first embodiment configured as described above will be described. When using the buffer cap 10, first, the protrusion 12 of the buffer cap 10 is engaged with the groove 13 of the buffer 1, and the buffer cap 10 is arranged at the upper end of the buffer 1. Next, while grasping the lower part of the dustproof cover 7 attached to the buffer portion 6 of the shock absorber 1 and pulling it upward, the end portion of the spring 9 is extended upward and hooked on the cutout portion 11 of the buffer cap 10. As a result, an elastic force in the direction in which the spring 9 contracts acts on the notch 11 of the buffer cap 10 in the downward direction (upper end side of the shock absorber 1), and the buffer cap 10 is placed on the upper portion of the shock absorber 1. Since it is urged, it is supported so as to stand upright on the upper part of the shock absorber 1 without being displaced or tilted from a predetermined position.

When the use of the buffer cap 10 is finished, the end portion of the spring 9 is removed from the notch portion 11 of the buffer cap 10, and the buffer cap 10 is removed from the upper end portion of the buffer cap 1. At this time, since the dustproof cover 7 is arranged on the upper end side of the shock absorber 1, the dustproof cover 7 is arranged so as to cover the entire shock absorber 6 while extending the spring 9 downward. That is, the dustproof cover 7 is returned to the original state by attaching the dustproof cover 7 removed from the buffer portion 6 to the buffer portion 6 in the reverse procedure of using the buffer cap 10.

As described above, according to the first embodiment, the buffer cap 10 that restricts the lowering of the elevator car 4 or the weight 5 so as not to come into contact with the shock absorber 1 is detachably attached to the upper end portion of the shock absorber 1. In the buffer cap mounting device, a dustproof cover 7 that covers the buffer portion 6 of the shock absorber 1 and one is fixed near the upper end portion of the shock absorber 1, and the other is normally arranged together with the dustproof cover 7 during use. The other includes a spring 9 arranged so as to extend upward from the upper end portion of the shock absorber 1, and a notch portion 11 provided at the upper end portion of the buffer cap 10 to which the spring 9 can engage, and the spring. Reference numeral 9 denotes integrally formed with the dustproof cover 7, which can be expanded and contracted together with the dustproof cover 7 and engages with the notch portion 11 during use to urge the upper end portion of the buffer cap 10 in the downward direction from above. By doing so, the buffer cap 10 exerts a holding force necessary for standing upright on the upper end portion of the buffer 1. That is, since the dustproof cover 7 exerts this holding force on the buffer cap 10, an elevator buffer cap mounting device capable of mounting the buffer cap 10 on the buffer cap 1 without removing the dustproof cover 7 from the buffer cap 1 is provided. be able to. Further, since the dustproof cover 7 is not removed from the shock absorber 1 when the buffer cap 10 is used, there is no need to store the dustproof cover 7. Further, since the buffer cap 10 can have a simple cylindrical shape, a holding means such as a screw and a non-slip device are not required, which can contribute to space saving and cost reduction of the storage place.

Further, since the springs 9 are arranged in a mesh shape on the dust-proof cover 7, when the dust-proof cover 7 is attached to the buffer portion 6, an elastic force for contracting the spring 9 acts on the dust-proof cover 7. By minimizing the gap between the buffer portion 6 and the dustproof cover 7, the adhesion of dust and dirt is reduced, so that the dustproof effect of the dustproof cover 7 can be enhanced.

Further, the lower end portion of the buffer cap 10 is provided with a protrusion 12 projecting downward, and the upper end portion of the buffer cap 1 is provided with a groove 13 capable of engaging with the protrusion 12. When the load of the car 4 or the weight acts on the upper end of the buffer cap 10, the protrusion 12 and the groove 13 engage with each other, so that the lower end of the buffer cap 10 is held by the upper end of the shock absorber 1. It is supported upright on the upper part of the shock absorber 1 without being displaced or tilted from a predetermined position.

Embodiment 2.
9 to 11 show the buffer cap mounting device of the elevator according to the second embodiment of the present invention, and FIG. 9 is a front view (enlarged view) and a view showing a main part of the buffer cap mounting device (normal time). 10 is a front view (enlarged view) showing the main part of the buffer cap mounting device (at the time of assembly), and FIG. 11 is a front view (enlarged view) showing the main part of the buffer cap mounting device (at the time of use). The elevator buffer cap attachment device according to the second embodiment of the present invention is different in that one of the elastic bodies is fixed to the main part near the lower end of the buffer part, and the same symbol is added to the other similar parts. The explanation is omitted.

In the figure, one of the springs 14 is fixed near the lower end of the cushioning portion 6, and the other is normally arranged above the dustproof cover 15. In the dustproof cover 15, the upper part of the portion covering the shock absorber 6 is extended upward as it is, and the extended portion of the dustproof cover 15 is arranged in a contracted state near the upper end portion of the shock absorber 1. ..

Next, the operation of the second embodiment configured as described above will be described. When using the buffer cap 10, first, the protrusion 12 of the buffer cap 10 is engaged with the groove 13 of the buffer 1, and the buffer cap 10 is arranged at the upper end of the buffer 1. Next, while grasping the end portion of the spring 14 arranged near the upper end portion of the shock absorber 1 and pulling it upward, the end portion of the spring 14 is extended upward and hooked on the cutout portion 11 of the buffer cap 10. As a result, an elastic force in the direction in which the spring 14 contracts acts on the notch 11 of the buffer cap 10 in the downward direction (upper end side of the shock absorber 1), and the buffer cap 10 is placed on the upper portion of the shock absorber 1. Since it is urged, it is supported so as to stand upright on the upper part of the shock absorber 1 without being displaced or tilted from a predetermined position. At this time, since the spring 14 is pulled upward of the shock absorber 1, an elastic force in the contracting direction acts on the dustproof cover 15 covering the shock absorber 6. Further, when the buffer cap 10 is used, the dustproof cover 15 in a state of covering the buffer portion 6 is arranged as it is and is not attached or detached.

When the use of the buffer cap 10 is finished, the end portion of the spring 14 is removed from the notch portion 11 of the buffer cap 10, and the buffer cap 10 is removed from the upper end portion of the buffer cap 1.

As described above, according to the second embodiment, one of the springs 14 is fixed in the vicinity of the lower end of the buffer portion 6, and the other is normally arranged in the upper part of the dustproof cover 15 to form a buffer. The holding force required for the cap 10 to stand upright on the upper end of the shock absorber 1 is applied. That is, since the dustproof cover 15 exerts this holding force on the buffer cap 10, an elevator buffer cap attachment device capable of attaching the buffer cap 10 to the buffer cap 1 without removing the dustproof cover 15 from the buffer 1 is provided. be able to. Further, since the dustproof cover 15 is not removed from the buffer portion 6 when the buffer cap 10 is used, it is possible to prevent dust and dirt from always adhering to the buffer cap 10.

In the first embodiment, the spring 9 is integrally attached to the cover portion 8 of the dustproof cover 7 in a mesh pattern, but it is not always necessary to arrange the spring 9 as a whole. That is, the spring 9 may be partially arranged on the cover portion 8 of the dustproof cover 7 instead of in a mesh pattern so that a predetermined elastic force acts on the buffer cap 10.

Further, in the first embodiment, the cutout portion 11 is arranged diagonally when the buffer cap 10 is viewed from above, but it is not always necessary to arrange the buffer cap 10 diagonally. For example, when the buffer cap 10 is viewed from above, the notch portions 11 are arranged so that the shape formed by the straight lines when the positions of the notch portions 10 are connected to each other forms an equilateral triangle or a regular polygon. Is also good.

Further, in the first embodiment, the protrusion 12 is provided at the lower end of the buffer cap 10, and the groove 13 is provided at the upper end of the buffer 1, but it is not always necessary to provide the groove 13. For example, a non-slip or the like may be provided between the lower end of the buffer cap 10 and the upper end of the shock absorber 1 instead of the protrusion 12 and the groove 13. As a result, when the buffer cap 10 is used, the action / effect equivalent to the action / effect of the protrusion 12 and the groove 13 can be obtained.

Further, in the second embodiment, in the dustproof cover 15, the upper portion of the portion covering the cushioning portion 6 is extended upward as it is, but the cover portion 8 does not necessarily have to be arranged. That is, the cover portion 8 may not be provided on the upper portion of the portion of the dustproof cover 15 that covers the cushioning portion 6 (the upper end portion side of the shock absorber 1), and only the spring 14 may be arranged.

Further, in the first and second embodiments, the end portion of the spring 9 or the spring 14 is hooked on the notch portion 11 of the buffer cap 10, but it is not always necessary to hook the end portion of the spring 9 or the spring 14 on the notch portion 11. There is no. For example, when the length of the buffer cap 10 is short, when the spring 9 or the spring 14 is pulled upward, the intermediate portion of the mesh rather than the end portion of the spring 9 or the spring 14 can be hooked on the notch portion 11. As a result, regardless of the length of the buffer cap 10, the dust-proof cover 7 or the dust-proof cover 15 of the same size can be used as it is, and a predetermined elastic force can be applied to the buffer cap 10.

Further, in the first and second embodiments, the spring 9 or the spring 14 is used as the elastic body, but the same action / effect can be obtained even if rubber or the like is used as another elastic body instead of the spring 9 or the spring 14. Needless to say.

Further, in the first and second embodiments, vinyl or cloth is used as the cover portion 8, but it is possible to cover the cushioning portion 6 instead of the vinyl or cloth, and the spring 9 or the spring 14 is integrated. Needless to say, even if a material having a dustproof function that can be formed is used, the same action and effect can be obtained.

1 shock absorber, 2 hoistway, 3 pits, 4 baskets, 5 weights, 6 shock absorbers, 7,15 dustproof covers, 8 covers, 9,14 springs, 10 buffer caps, 11 notches, 12 protrusions, 13 Groove

The present invention relates to a buffer cap that limits the descent of an elevator car or weight so that it does not come into contact with the shock absorber.

Claims (4)

In an elevator buffer cap mounting device that detachably attaches a buffer cap that restricts descent so that the elevator car or weight does not come into contact with the shock absorber at the upper end of the shock absorber.
A dustproof cover that covers the buffer portion of the shock absorber, one of which is fixed near the upper end of the shock absorber, is normally arranged together with the dustproof cover, and the other is above the upper end of the shock absorber during use. An elastic body that is placed in an extended state and
A notch provided at the upper end of the buffer cap and to which the elastic body can engage is provided.
The elastic body is integrally formed with the dust-proof cover, is expandable and contractable together with the dust-proof cover, engages with the notch during use, and lowers the upper end of the buffer cap from above. Elevator buffer cap mounting device characterized by urging.
The elevator buffer cap attachment device according to claim 1, wherein the elastic body is arranged in a mesh shape on the dustproof cover.
The lower end of the buffer cap is provided with a downwardly projecting protrusion, and the upper end of the buffer is provided with a groove capable of engaging with the protrusion. The elevator buffer cap mounting device according to any one of 1 and 2.
7. Elevator buffer cap mounting device.

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