JPH0450294Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an improvement in the structure of an elevating body guide device such as an elevator or a dumbwaiter, particularly a counterweight.

[Conventional technology]

Conventionally, as shown in, for example, Japanese Utility Model Publication No. 55-28703 and Japanese Utility Model Publication No. 50-12856, a rectangular frame is formed from both side members and upper and lower connecting members, and inside this frame A plurality of unit weights are stacked up and down in the vertical direction, and both ends of each unit weight are engaged with the above-mentioned side members to form a counterweight, and guide shoes or 2. Description of the Related Art Elevating body guide devices are generally known in which a guide member such as a guide roller is engaged with two left and right guide rails to guide the lifting and lowering of a counterweight.

By the way, in this type of elevating body guide device,
If an earthquake or similar event occurs during lifting and lowering and horizontal vibration occurs in the counterweight, the earthquake load will be applied to the guide member in addition to the normal load during lifting and lowering, causing the guide rail to be significantly bent and deformed at the point of contact with the guide member. However, there is a risk that the guide member may come off the guide rail.

Therefore, in some cases, a guide part with a π-shaped cross section that the guide member engages with from both sides is used as a single guide rail to prevent the counterweight from coming off even if the guide rail is bent. A device has been proposed.

[Problem that the invention attempts to solve]

In the conventional elevating object guide device as described above, the frame of the counterweight may exceed 3 m in length in the vertical direction depending on the type, and in this case, the frame may be damaged by the earthquake load. There is a risk that the unit weight may be bent outward and fall off from the frame. In addition, a counterweight guided by a single guide rail will not come off the guide rail even if an earthquake load is applied, but the guide rail itself will be greatly curved and deformed.
There is a problem that the counterweight may interfere with other equipment in the hoistway, which is extremely dangerous.

Possible ways to solve this problem include increasing the rigidity of the guide rail or narrowing the installation interval of the rail brackets that secure the guide rail to the hoistway, but both of these methods increase cost and installation work. This is not practical.

This invention was made in order to solve such problems, and to provide an elevator guide device that can prevent unit weights from falling out of the frame and interference with other equipment in the hoistway with a simple structure. With the goal.

[Means for solving problems]

The elevating body guiding device according to this invention is provided with a cross member whose both end portions are connected to both side members at the vertical intermediate portion of the elevating body, and the cross member is engaged with the guide rail. It is designed to prevent it from coming off.

[Effect]

In this invention, since the vertical intermediate portions of both side members are connected to each other by the cross member, the earthquake load applied to the frame can be shared between the side members on both sides, thereby reducing the bending deformation thereof. This effectively prevents the unit weight from falling off the frame. Also,
Since the cross member is provided with a stopper that engages with the guide rail, the load applied to the guide rail is dispersed between the upper and lower guide members and the stopper, and the deflection of the guide rail is reduced. Therefore, interference of the elevating body with other equipment in the hoistway is prevented.

〔Example〕

Figures 1 to 4 show an embodiment of this invention, and in the figures, 1 is an elevator hoistway, 2 is a car that goes up and down in the hoistway 1, 3 is a car door, and 4 is a car door.
5 is a car guide rail that guides the elevator car 2 up and down, 6 is a bracket that fixes the car guide rail 5 in the hoistway 1, and 7 is a counterbalance for going up and down in the hoistway 1. The weight is placed inside a frame 8 formed into a rectangular frame shape by side members 9 on both sides and upper and lower connecting members 10 and 11, with both ends attached to each side member 9.
It is constructed by vertically stacking a plurality of unit weights 12 that are engaged with each other. Reference numeral 13 denotes a single counterweight guide rail having a π-shaped cross section and located at the center of the counterweight 7 in the width direction, and guides the counterweight 7 as it moves up and down. 14 is a bracket for fixing this counterweight guide rail 13 in the hoistway 1;
Guide members 5, such as guide rollers or guide shoes, are provided at the center of the upper and lower ends of the frame 8, and are engaged with the counterweight guide rail 13 so as to be hugged from both sides. 16 is the frame 8
A transverse member disposed in the vertically intermediate part of, more specifically, in the center of the part where the unit weights 12 are stacked, both ends of which are connected to each side member 9 via screws 17, A bracket 18 is fixed on the upper surface side to form a required vertical distance G between the bracket 18 and the unit weight 12 directly above the bracket 18. Reference numeral 19 denotes a pair of retainers which are screwed to the center of the upper surface of the cross member 16 and have a concave groove 19a that engages with the guide rail 13 for the counterweight. , can be attached to and detached from the cross member 16 via the above-mentioned vertical interval G, and the state of engagement with the guide rail 13 can be visually confirmed.

In the elevating body guide device configured as described above, the vertical intermediate portions of the side members 9 on both sides are connected to each other by the cross members 16, so that the earthquake load applied to the frame 8 is transferred to both sides. This will be shared by member 9. Therefore, the bending deformation of the side member 9 is reduced, and falling off of the unit weight 12 from the frame body 8 can be effectively prevented.

Also, this cross member 16 is provided with a stopper 19 that engages with the counterweight guide rail 13, so that the earthquake load applied to the guide rail 13 is distributed between the upper and lower guide members 15 and the stopper 19. I will do it. Therefore, the deflection of the guide rail 13 is reduced, and it is possible to prevent the counterweight 7 from interfering with other equipment in the hoistway 1.

In addition, since a vertical interval G is formed at the upper part of the retainer 19, the retainer 19 can be attached to and removed from the crosspiece 16 while the unit weight 12 is attached to the frame 8, which improves work efficiency during installation. Extremely good. Further, the state of engagement between the stopper 19 and the guide rail 13 can be confirmed through the vertical interval G.

In the above embodiment, the retainer 19 is attached to the cross member 1.
6 is shown as being attached to the upper surface side, but it may be attached to the lower surface side. In this case, the bracket 18 for forming the vertical interval G is
is not necessarily necessary. Moreover, it is applicable not only to elevators but also to dumbwaiters and the like.

[Effect of idea]

As explained above, this device is provided with a cross member whose both ends are connected to the side members on both sides in the vertical middle part of the elevating body, and a stopper that engages with the guide rail on this cross member. This reduces the bending deformation of the side members and prevents the unit weight from falling off the frame, and also reduces the deflection of the guide rail to prevent the lifting body from interfering with other equipment in the hoistway. It also has the effect of preventing things from happening.

[Brief explanation of the drawing]

Fig. 1 is a plan cross-sectional view of the hoistway showing an embodiment of this invention, Fig. 2 is a detailed view of the engagement portion between the guide member and the counterweight guide rail, and Fig. 3 is a detailed view of the counterweight. , FIG. 4 is an enlarged sectional view taken along the line -- in FIG. 3. 1... Hoistway, 7... Counterweight, 8... Frame, 9... Side member, 10, 11... Connection member, 1
2... Unit weight, 13... Guide rail for counterweight, 15... Guide member, 16... Cross member,
18... Bracket, 19... Removal stopper, 19a
... Concave groove, G ... Vertical interval. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] (1) A frame that is framed in a rectangular shape by side members on both sides and connecting members at the top and bottom, and a frame that is stacked vertically within this frame and whose ends on both sides are connected to each of the side members. A lifting body is constructed from a plurality of unit weights that fit together, guide members are provided at the upper and lower parts of the lifting body, and each of these guide members is engaged with a guide rail located at the widthwise center of the lifting body. In an elevating object guide device that guides the elevating object to move up and down along the guide rail, a transverse member is provided at the vertically intermediate portion of the elevating object, and the cross member whose both end portions are connected to the side members on both sides is provided. An elevating body guiding device characterized in that the threading material is provided with a stopper that engages with the guide rail. (2) The required space is formed around the retainer,
The elevating body guide device according to claim 1 of the registered utility model claim, wherein the retainer is capable of being attached to and detached from the cross member through the space when the unit weight is attached to the frame body. .