JP2016088740A - Shock absorber of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a shock absorber of an elevator which can be easily installed on a guide rail without requiring a tool for installation.SOLUTION: A shock absorber 7 of an elevator eases an impact to a car due to a collision with the car guided by car guide rails 4 with a T-shaped cross section which vertically extends in a hoist way and is composed of a leg portion 9 horizontally extending and a head portion 10 vertically extending to the leg portion 9. The shock absorber 7 is equipped with a shock absorber body 13 which is placed on a bottom surface of a PIT of the hoist way, and is made from an elastic member having a groove portion 11 extending inward from a peripheral edge portion; and a pair of locking portions 12 protrusively provided on an inner wall surface on an opening side of the groove portion 11, and press-contacted and locked to the guide rail 4. By inserting the groove portion 11 of the shock absorber 13 in the head portion 10, the shock absorber 7 is installed by respectively locking the locking portions 12 to the guide rails 4.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a shock absorber for an elevator that alleviates an impact on the lifting body caused by a collision with the lifting body guided by a guide rail.

  Conventionally, when installing the shock absorber on the bottom surface of the pit, the positioning is first performed and then fixed to the bottom surface of the pit with an anchor bolt or the like.

  As an example of solving this problem, there has been known one in which a shock absorber is fixed to a guide rail so that the anchor bolt does not need to be fixed to the floor (see Patent Document 1).

JP-A-2005-330103

  However, even in this case, the fixing member interposed between the shock absorber and the guide rail must be fixed to the shock absorber and the guide rail with a bolt and a nut using tools, respectively. There was a problem of requiring.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator shock absorber that can be easily installed on a guide rail without requiring a tool for installation.

The elevator shock absorber according to the present invention includes:
The ascending and descending due to a collision with a lifting body guided by a guide rail having a T-shaped cross section comprising a leg portion extending in the vertical direction in the hoistway and a head portion extending in a direction perpendicular to the leg portion. An elevator shock absorber that reduces shock to the body,
A shock absorber body mounted on the bottom surface of the pit of the hoistway and made of an elastic member having a groove extending inward from the peripheral edge; and
A pair of locking portions provided to protrude from the inner wall surface on the opening side of the groove portion and to press and lock the guide rail,
By inserting the groove portion of the shock absorber body into the head, the locking portions are locked and attached to the guide rails.

  According to the elevator shock absorber according to the present invention, by inserting the groove portion of the buffer body made of an elastic member into the head portion of the guide rail, the locking portions are respectively locked and attached to the guide rail. It is easy to install on the guide rail without the need for tools.

It is a partial block diagram of the elevator in which the shock absorber of the elevator of Embodiment 1 of this invention was installed. It is a principal part perspective view of FIG. It is a top view which shows the shock absorber of FIG. It is a perspective view which shows before the shock absorber of FIG. 1 is attached to a car guide rail. It is a perspective view which shows after the buffer of FIG. 1 was attached to the car guide rail. It is a perspective view which shows when the shock absorber which is a modification of the shock absorber of Embodiment 1 of this invention is attached to the cage guide rail. It is a top view which shows when the buffer of the elevator of Embodiment 2 of this invention is attached to the car guide rail. It is a top view which shows the insertion member of FIG. It is a front view which shows the buffer of the elevator of Embodiment 3 of this invention. FIG. 10 is a plan view of FIG. 9. 11A is a front view showing the relay member, FIG. 11B is a plan view, and FIG. 11C is a right side view. It is a top view which shows the buffer of the elevator of Embodiment 4 of this invention. It is a top view which shows when the buffer of FIG. 12 is attached to the car guide rail.

  Hereinafter, the elevator shock absorber of each embodiment of the present invention will be described. In the drawings, the same or corresponding members and parts are denoted by the same reference numerals.

Embodiment 1 FIG.
FIG. 1 is a partial configuration diagram of an elevator provided with an elevator shock absorber 7 according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view of a main part of FIG.
In this elevator, a machine room (not shown) is provided in the upper part of the hoistway 1, and a hoisting machine, a deflector, and an elevator control device (not shown) are installed in the machine room.
A rope 3 is wound around the drive sheave and the deflector wheel of the hoist. A cage 2 that is a lifting body is connected to one end of the rope 3, and a counterweight (not shown) is connected to the other end.

  The car 2 and the counterweight are suspended in the hoistway 1 by the rope 3 and are moved up and down in the hoistway 1 by the driving force of the hoisting machine. The elevator control device controls the operation of the car 2 by controlling the hoisting machine.

In the hoistway 1, a pair of car guide rails 4 extending in the vertical direction and guiding the raising and lowering of the car 2 and a pair of counterweight guide rails (not shown) for guiding the raising and lowering of the counterweight are installed. ing.
The car guide rail 4 and the counterweight guide rail 4 have a T-shaped cross section and are composed of a leg portion 9 extending in the horizontal direction and a head portion 10 extending in a direction perpendicular to the leg portion 9. .
A shock absorber 7 is attached to the lowermost part of each car guide rail 4. The shock absorber 7 is placed on the bottom surface 8 of the pit 5 and is compressed in the direction of arrow A by the collision of the collision portion 6 of the car 2, so that the impact on the car 2 is reduced.

FIG. 3 is a plan view showing the shock absorber 7 of FIG.
The shock absorber 7 includes a shock absorber main body 13 made of urethane, which is an elastic member having a groove portion 11 extending from the peripheral edge toward the center, and a pair of latches provided so as to protrude from the inner wall surface of the entrance portion of the groove portion 11. Part 12. The locking portion 12 is also made of urethane and is integral with the cylindrical shock absorber body 13.

  As shown in FIG. 4, the shock absorber 7 having the above-described configuration has the elasticity of the shock absorber body 13 when the groove portion 11 is inserted into the head portion 10 of the car guide rail 4 in the direction of arrow C. The opposing locking portions 12 are expanded in the direction of the arrow B, and after being inserted as they are, they are pressed and locked to the thin portion 14 of the head 10 as shown in FIG.

According to the shock absorber 7 of the first embodiment, the shock absorber 7 can be attached to the car guide rail 4 by inserting the groove portion 11 in the head portion 10 of the car guide rail 4, and it is easy without using a tool. Can be attached to.
In addition, the shock absorber 7 is attached to the car guide rail 4 by inserting the groove portion 11 into the head portion 10 of the car guide rail 4 with the shock absorber 7 placed, and therefore the shock absorber 7 on the pit 5 in advance. No positioning work is required.
Further, the shock absorber 7 is attached to the car guide rail 4 in a state where the locking portion 12 is pressed against and locked to the thin portion 14, and does not easily come off.

FIG. 6 is a perspective view showing a modification of the shock absorber 7 of the first embodiment.
In this modification, a pair of opposed L-shaped locking portions 12 are provided at the end of the rectangular parallelepiped shock absorber body 13 on the guide rail 4 side, and the locking portions 12 are connected to the car guide rail. The four leg portions 9 are pressed and locked to both end portions.
Similarly to the shock absorber 7 of the first embodiment, this modified example also attaches the groove portion 11 to the head portion 10 so that the shock absorber 7 is attached to the car guide rail 4.
Moreover, there exists an effect similar to the buffer 7 of Embodiment 1. FIG.

Embodiment 2. FIG.
FIG. 7 is a plan view of the elevator shock absorber 7 according to the second embodiment of the present invention attached to the car guide rail 4, and FIG. 8 is a plan view showing the fitting member 20 of FIG.
The shock absorber 7 of the second embodiment includes a shock absorber main body 13 similar to that of the first embodiment, and a fitting member 20 that is fitted into the head 10 of the car guide rail 4 and has a resilient force in the horizontal direction. It is equipped with.
As shown in FIG. 8, the fitting member 20 has a pair of parallel surfaces parallel to the side surface of the head 10 and a bottom surface connecting the opposed parallel surfaces. The length A of the parallel surface and the length B of the bottom surface are defined by the dimensions of the guide rail 4 to which the shock absorber 7 is attached.
The corner portion 21, which is a connection portion between the flat surface portion and the bottom surface portion, bites into the corner of the bottom surface portion of the groove portion 11 of the shock absorber main body 13 that is an elastic member, and the fitting member 20 is temporarily fixed to the shock absorber main body 13. . A pressing portion 22 that bends and presses the side surface of the head 10 is formed in the flat portion of the fitting member 20. Further, an enlarged portion 23 that is enlarged in the entrance direction is formed in the opening of the flat portion of the fitting member 20.

In the shock absorber 7 according to the second embodiment, an insertion member 20 is used instead of the locking portion 12 according to the first embodiment. Like the shock absorber 7 according to the first embodiment, the groove portion 11 is formed in the head portion 10. Is inserted through the fitting member 20 so that the shock absorber 7 is attached to the car guide rail 4 and has the same effect as the shock absorber 7 of the first embodiment.
Further, in the shock absorber 7, since the fitting member 20 that matches the car guide rail 4 is selected and used, strict dimensional control is not required for the groove portion 11 formed in the shock absorber body 13, and the car guide. There is no need to individually arrange the shock absorber bodies 13 having the groove portions 11 adapted to the dimensions of the rails 4.

Embodiment 3 FIG.
9 is a front view showing an elevator shock absorber 7 according to Embodiment 3 of the present invention, FIG. 10 is a plan view of FIG. 9, FIG. 11 (a) is a front view showing a relay member 25, and FIG. ) Is a plan view, and FIG. 11C is a right side view.
The shock absorber 7 is a cylindrical shock absorber main body 13 made of urethane, which is an elastic member, and a fitting member 20 that is fitted into the head 10 of the car guide rail 4 and has a resilient force in the horizontal direction. And a relay member 25 having an insertion portion 24 which is provided integrally with the fitting member 20 so as to extend in the direction opposite to the car guide rail 4 and which is inserted into the shock absorber main body 13 at the distal end portion.
The insertion portion 24 has an upright triangular shape and is attached to the bottom surface portion of the shock absorber body 13.

The shock absorber 7 of the third embodiment is attached to the car guide rail 4 by inserting the fitting member 20 into the head 10, and has the same effect as the shock absorber 7 of the first embodiment. is there.
Further, in the shock absorber 7, unlike the shock absorbers 7 of the first and second embodiments, it is not necessary to form the groove 11 in the shock absorber main body 13.

Embodiment 4 FIG.
FIG. 12 is a plan view showing an elevator shock absorber 7 according to Embodiment 4 of the present invention, and FIG. 13 is a plan view showing when the shock absorber 7 of FIG. 12 is attached to the car guide rail 4.
The shock absorber 7 according to the fourth embodiment has a shock absorber body 13 made of an elastic member having a groove 11 extending from the peripheral edge toward the center, and a shock absorber main body 13 provided on the inner wall surface of the groove 11. And a low hardness member 26 having a low hardness.
The width of the groove of the low hardness member 26 is smaller than the width of the head 10.
The low hardness member 26 is made of urethane which is the same elastic member as the shock absorber main body 13.

In the shock absorber 7 of the fourth embodiment, when the groove 11 of the shock absorber main body 13 is inserted into the head 10 via the low hardness member 26 in the direction of the arrow 2, the low hardness member 26 Since the shock absorber 7 is attached to the car guide rail 4 in conformity with the shape, the same effect as the shock absorber 7 of the first embodiment can be obtained.
Instead of the low hardness member 26, a low repulsion member made of urethane which is the same elastic member as the shock absorber main body 13 may be used.
When this low repulsion member is used, when an impact is applied such as when an operator accidentally trips on the shock absorber 7 after installation, the car guide rail is not easily deformed because it is a low repulsion member. There is also an effect that it is difficult to come off.

In the above-described embodiment, the shock absorber 7 attached to the car guide rail 4 that guides the car 2 that is the lifting body has been described, but the same applies to the counterweight guide rail that guides the counterweight that is the lifting body. Can be used.
Moreover, although the shock absorber body 13 uses urethane which is an elastic member, of course, urethane is an example, and other elastic members may be used.

  DESCRIPTION OF SYMBOLS 1 Hoistway, 2 cages (elevating body), 3 ropes, 4 cage guide rails, 5 pits, 6 collision part, 7 shock absorber, 8 bottom face, 9 leg part, 10 head part, 11 groove part, 12 latching part, 13 Shock absorber body, 14 thin part, 20 insertion member, 21 corner part, 22 pressing part, 23 enlargement part, 24 insertion part, 25 relay member, 26 low hardness member.

Claims (9)

The ascending and descending due to a collision with a lifting body guided by a guide rail having a T-shaped cross section comprising a leg portion extending in the vertical direction in the hoistway and a head portion extending in a direction perpendicular to the leg portion. An elevator shock absorber that reduces shock to the body,
A shock absorber body mounted on the bottom surface of the pit of the hoistway and made of an elastic member having a groove extending inward from the peripheral edge; and
A pair of locking portions provided to protrude from the inner wall surface on the opening side of the groove portion and to press and lock the guide rail,
An elevator shock absorber in which the locking portion is locked and attached to the guide rail by inserting the groove portion of the shock absorber body into the head.   The elevator shock absorber according to claim 1, wherein the locking portion is locked to a thin portion formed on the leg side of the head.   The elevator shock absorber according to claim 1, wherein the locking portion is locked to a horizontal end portion of the leg portion.   The elevator shock absorber according to any one of claims 1 to 3, wherein the shock absorber main body and the locking portion are integrated with the same material. The ascending and descending due to a collision with a lifting body guided by a guide rail having a T-shaped cross section comprising a leg portion extending in the vertical direction in the hoistway and a head portion extending in a direction perpendicular to the leg portion. An elevator shock absorber that reduces shock to the body,
A shock absorber body mounted on the bottom surface of the pit of the hoistway and made of an elastic member having a groove extending inward from the peripheral edge; and
An insertion member that is inserted into the head and has a resilient force in the horizontal direction,
A shock absorber for an elevator that is attached to the guide rail by inserting the groove portion of the shock absorber main body into the head via the fitting member. The ascending and descending due to a collision with a lifting body guided by a guide rail having a T-shaped cross section comprising a leg portion extending in the vertical direction in the hoistway and a head portion extending in a direction perpendicular to the leg portion. An elevator shock absorber that reduces shock to the body,
A shock absorber body made of an elastic member placed on the bottom surface of the pit of the hoistway;
An insertion member that is inserted into the head and has elasticity in the horizontal direction;
A relay member that extends in the direction opposite to the guide rail on the fitting member and has an insertion portion that is provided integrally with the shock absorber main body at a distal end portion; and
An elevator shock absorber attached to the guide rail by inserting the fitting member into the head. The ascending and descending due to a collision with a lifting body guided by a guide rail having a T-shaped cross section comprising a leg portion extending in the vertical direction in the hoistway and a head portion extending in a direction perpendicular to the leg portion. An elevator shock absorber that reduces shock to the body,
A shock absorber body made of an elastic member having a groove portion extending inward from a peripheral edge portion placed on the bottom surface of the pit of the hoistway;
A low hardness member provided on the inner wall surface of the groove portion and having a low hardness compared to the shock absorber body,
An elevator shock absorber attached to the guide rail by inserting the groove portion of the shock absorber body through the low hardness member into the head. The ascending and descending due to a collision with a lifting body guided by a guide rail having a T-shaped cross section comprising a leg portion extending in the vertical direction in the hoistway and a head portion extending in a direction perpendicular to the leg portion. An elevator shock absorber that reduces shock to the body,
A shock absorber body made of an elastic member having a groove portion extending inward from a peripheral edge portion placed on the bottom surface of the pit of the hoistway;
A low repulsion member that is provided on the inner wall surface of the groove and has a low repulsion compared to the shock absorber body,
An elevator shock absorber attached to the guide rail by inserting the groove portion of the shock absorber body into the head portion via the low-repulsion member.   The elevator shock absorber according to any one of claims 1 to 8, wherein the shock absorber body is made of urethane.

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