DE102008063529A1 - Shaft frame for use in shaft of lift system for receiving load lifting part, has drive shaft for connecting frame to drive motor, and drive wheel provided in two end regions and moved up or down by supporting part of load lifting unit - Google Patents

Abstract

The shaft frame (102) has a drive shaft connected to a drive motor. The drive shaft is horizontally mounted on the frame or in a lift well using a supporting part i.e. traction unit device. The drive shaft horizontally extends between two diagonally opposed corner regions of the frame. The corner regions are directly or indirectly connected to parts located on longitudinal sides of the frame or wall parts of the lift well. A drive wheel is provided in two end regions and moved up or down by a supporting part of a load lifting unit (200).

Description

Field of the invention

The The invention relates to an elevator system for the vertical Transport of persons and / or goods.

State of the art

Simplified Elevators or vertical platform lifts for Handicapped people are predominantly in private living areas used for the barrier-free transport of persons with disabilities and are also known in common usage under the term "home lifts".

In the absence of a harmonized European standard, simplified lift systems are currently only available in the form of the EN 81-41 as a draft for examination and public opinion, produced and installed, for example, in Germany in accordance with the requirements of Directive 98/37 / EC - also referred to as the Machinery Directive. This guideline allows z. B., by using a deadman (elevator can only be moved as long as a control button is pressed manually), with a maximum operating speed of 0.15 m / s and other measures to dispense with a cabin door. Furthermore, the Machinery Directive allows reduced over- (shaft heads) and underpasses (shaft pits) to be executed.

The required for the maintenance and inspection of the equipment Shelters are temporarily made. For Elevator systems of this kind is up to a head of 3 m i. d. R. no safety-related acceptance by a Notified body required, insofar as the manufacturer corresponding manufacturer certificates. The head is the track that the platform can cover at most.

Simplified Elevator systems of this kind can be installed in lift shafts, the i. d. R. bricked or concreted are mounted become. In most cases, these systems will work but delivered with a lift shaft frame. This can be used as load-bearing or self-supporting shaft scaffolding in the Can be mounted indoors or outdoors. The bearing Chimney construction consists of posts and bars in the form of steel profiles, usually hollow steel profiles. So one At least over the travel closed enclosure arises, Shaft scaffolding is often used with glass, facade panels or other material.

When Drive system are mainly used in the elevator market Spindle drives and hydraulic drive systems offered. in this connection be on a side wall or the back wall side the Drive spindle, or the hydraulic ram and the guide system assembled. The elevator platforms become one-sided as a "backpack system" cantilevered out. The drive motor or the hydraulic unit are located either on the drive side behind a veneer (Spindle drives) or outside the elevator shaft (hydraulic units).

at Both drive systems will have a side or rear wall by the required technology (drive spindle, hydraulic punch, Guide rails, etc.) installed. This wall side can, if architecturally desired, be disguised. At shear and crushing by the driving movement is such a wall covering absolutely necessary. With glass elevators, this will reduced transparency perceived as disturbing.

The disguised wall side can not continue for a possible Cabin access can be used and builds as a construction in addition to the necessary shaft width or shaft depth. Furthermore have "backpack systems" compared to central suspended systems worse driving characteristics, what For example, by stick-slip effect and from it resulting car vibrations during travel motion. This leads u. a. to higher noise emissions, those in homes to impaired living comfort to lead.

task

task The invention is an elevator system with as possible small installation dimensions with a maximum platform size which is the realization of a visually appealing Schachtgerüstkonstruktion allows and in the all four sides of the wall are accessible.

solution

These The object is achieved by the invention with the features of the independent Claim solved. Advantageous developments of the invention are characterized in the subclaims. The wording all claims are hereby incorporated by reference made to the content of this description. The invention also includes all sensible and especially all mentioned combinations independent and / or dependent claims.

It an elevator system with at least two stops is proposed. The lift system can be installed indoors or outside.

The Lift system has a drive motor and at least two carrying or Propellant.

additionally Belongs to the elevator system an elevator platform, which from held and / or moved the support means. The elevator platform can also be supplemented by walls. The elevator platform has the following minimum components: a driving frame and a floor (the platform) for carrying the persons and / or the Goods.

The Lift system is executed without counterweight. These Design favors a space-saving design of the entire elevator system. Furthermore, the inventive Elevator installation on a square elevator shaft. This one is in in most cases essentially rectangular; can do it z. B. small bulges or beveled corners occur. The elevator shaft can also have a substantially square floor plan to have. The required shape is determined by the shape the elevator platform or by a dedicated shaft framework or a combination of both.

Of the Drive motor drives a drive axle, wherein the drive axle is mounted diagonally in the elevator shaft. The drive axle is directly or indirectly connected to the drive motor.

At both ends of the drive axle a drive pulley is attached, which drives the suspension means.

For a guide of the elevator platform are also diagonal arranged on the elevator shaft guide rails present.

From particular advantage is that it is due to the arrangement of a space-saving Drive and guidance system in the framework corners it is possible to design the elevator platform in such a way that all four sides of the elevator platform are made accessible can. It is also favorable that the elevator shaft scaffolding designed with the maximum possible transparency and the space available be used optimally. The present invention also allows Delivery heights over 3 m.

Of the Drive motor can with the drive axle in a shaft head or be arranged in a pit.

Of the Construction of the elevator system allows these without doors shape.

It is possible in the described elevator system, the suspension means without fixing a clamping device. This embodiment favors a space-saving execution of the entire Lift system.

When Suspension means can be chains, steel cables (with and without plastic sheathing) or timing belt can be used. By using an electric motor in combination with low-noise suspension means, it is ensured that the system has high ride comfort at the same time low noise emissions and little Energy needed.

The Elevator platform can be equipped with a 1: 1, 2: 1 or a 3: 1 suspension be executed. For the preferred 2: 1 suspension Low power and a not too complex design be optimally combined.

Further Details and features will become apparent from the following description a preferred embodiment in conjunction with the Dependent claims. Here, the respective features alone or in combination with each other be realized. The possibilities to solve the task are not limited to the embodiment.

The Embodiment is shown schematically in the figures. The same reference numerals in the individual figures indicate same or functionally identical or with regard to their functions corresponding elements. In detail shows:

1 a vertical section of a lift shaft

2A a plan view (floor plan) of the elevator shaft and the elevator platform;

2 B a side view of the elevator shaft according to 2A (View B, schematic);

2C a side view of the elevator shaft according to 2A (View C; schematic);

3 a schematic representation of the course of the support means with respect to the rollers;

4 a schematic representation (perspective) of the elevator platform.

The in 1 illustrated vertical section of a lift shaft 100 shows a shaft framework 102 which is a lower section 104 and an upper section 106 having. The shaft framework 102 consists of a construction of posts 108 and bars 110 (so-called mullion and transom construction). The lower section 104 of the shaft framework 102 stands with her steep feet 112 in the pit 114 ,

The lower section 104 of the elevator shaft frame 102 supports, among other things, the floor ceiling 116 , In the floor ceiling 116 there is an opening 118 by which the elevator is moved vertically with the support means.

The upper section 106 of the elevator shaft frame 102 is on the floor ceiling 116 arranged. In this way, a well scaffold 102 from storey to storey or floor to floor. The entire shaft framework height 120 can span several floors and be correspondingly many meters. The delivery amount 122 can be more than three meters.

The topmost scaffolding segment 106 , so the shaft head 124 , In the embodiment shown, carries the drive motor 126 ,

Additions 128 to an elevator platform (not shown) may be from all sides of the well scaffold 102 output. Because the posts 108 mostly only in the corners of the shaft framework 102 are arranged and the elevator platform usually has no walls in simplified elevator systems, are accesses 128 to the elevator platform on all sides of the shaft possible.

In 2A is a plan view of the layout of an elevator shaft 100 with a shaft framework 102 , a platform 200 and a driving frame 202 shown. There is an access on each of the four sides of the lift platform 128 , The elevator drive 126 is for example directly with the drive axle 204 connected. As a variant of the drive arrangement is in 2A the arrangement of the drive 126 in the shaft head 124 selected. At the two ends of the drive axle 204 there is one drive pulley (traction sheave) 206 , The drive pulleys 206 may be, for example, groove-shaped traction sheaves, sprocket or timing belt pulleys.

On the 2 B and 2C each is a side view of the elevator shaft 100 shown.

The representation in 2 B shows a schematic side view of 2A from the viewing direction B. The suspension means 208 run over the at the ends of the drive axle 204 attached drive pulleys 206 to the on the driving frame 202 located pulleys 212 . 214 and on to the end suspensions 216 and 218 , The used suspension 208 For example, steel cables with and without plastic sheathing, toothed belts or steel chains can be used.

The pulleys 212 . 214 that are on the driving frame 202 are located when operating the elevator with the driving frame 202 with moves. If the elevator is not designed with the illustrated 2: 1 suspension, but with a direct 1: 1 suspension, then these pulleys are eliminated 212 . 214 , For a 3: 1 suspension pulleys are added in the pit head and in the pit, the end suspensions are in a 3: 1 suspension on the chassis.

The fixed pulley 219 is located in the pit 114 ,

A similar arrangement of elements is located at the diagonally opposite corner (in the 2 B not visible) of the driving frame 202 ,

In the variant of an arrangement of the drive 126 in the pit 114 are the drive discs 206 in the pit 114 and the fixed pulleys 219 in the shaft head 124 , ie the positions of the pulleys 219 and the drive pulleys 206 are exchanged.

The elevator platform is guided by the driving frame 202 on the guide rails 220 , which are mounted on the shaft frame. The driving frame 202 is with guided tours 222 fitted. For the realization of braking operations in case of breakage of the support means or the drive axle, the traveling frame 202 for this case of emergency an emergency braking device 224 on.

The suspension means 208 are with one end in the shaft head 124 at the upper end suspension 216 and with the other end in the chess pit 114 at the lower end suspension 218 attached. The end suspensions (also called zero points) are usually designed as rope bottles on suspension ropes and as clamping connectors in timing belts and with the suspensions of the drive pulley 206 or the deflection roller 219 connected. For chains, the end suspension may be similar to a clamp connector.

In 2C is a side view of the elevator shaft according to the invention 100 to see, with the representation of a 900 rotated schematic side view of 2 B from the viewing direction C (see FIG. 2A ) shows.

In 3 will schematically the detailed history of the suspension 208 over the traction sheaves 206 or roles 212 . 214 . 219 to the end suspensions 216 respectively. 218 shown.

The suspension means 208 run from one in the shaft head 124 located end suspension 216 about the role 212 to the drive pulley 206 , From there on over in the pit 114 located fixed pulley 219 , From there they continue on the at the driving frame 202 present role 214 to the end suspension 218 in the pit 114 ,

The individual pulleys and drive pulleys 212 . 206 . 214 . 219 here all have the same diameter, so that no different curvature loads of the support means occur. The suspension elements are bent only in the same direction (so-called constant bending). From the end suspension 216 in the direction of the end suspension 218 considered, learns the suspension in 3 only a left bend. So that the support means do not rub against each other, the pulleys 212 . 214 slightly opposite the drive pulley and the fixed pulley 219 staggered.

4 shows in perspective (schematically) the elevator platform. At the bottom of the chassis 202 is the platform 200 appropriate. Laterally on the chassis 202 are the pulleys 212 and 214 over which the suspension means 208 to run.

100

elevator shaft

102

shaft structure

104

lower section

106

upper section

108

post

110

bars

112

Leveling feet

114

pit

116

Floor ceiling

118

opening

120

Shaft structure height

122

head

124

wellhead

126

drive motor

128

Access

200

platform

202

trial frame

204

drive axle

206

sheave (Traction sheave)

208

support means

212

idler pulley

214

idler pulley

216

upper Endaufhängung

218

lower Endaufhängung

219

fixed idler pulley

220

guide rail at the shaft frame

222

guide at the driving frame

224

emergency braking

B

viewing direction

C

viewing direction

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited non-patent literature

• - EN 81-41 [0003]

Claims (6)

Elevator installation with at least two stops, comprising: a) a drive motor ( 126 ); b) at least two suspension elements ( 208 ); c) an elevator platform with a traveling frame ( 200 . 202 ) without counterweight, which are supported by the 208 ) is worn and / or moved; d) a substantially quadrangular elevator shaft ( 100 ); e) the drive motor ( 126 ) a drive axle ( 204 ) drives; e1) the drive axle ( 204 ) diagonally in the elevator shaft ( 100 ) is attached; f) at both ends of the drive axle ( 204 ) each have a traction sheave ( 206 ), which has at least two suspension elements ( 208 ) drives; and g) wherein for a guidance of the elevator platform ( 200 . 202 ) diagonally across the corner of the elevator shaft ( 100 ) Guide rails ( 212 ) available. Elevator installation according to the preceding claim, characterized in that the drive motor ( 126 ) with the drive axle ( 204 ) in a shaft head ( 124 ) or in a pit ( 114 ) is arranged. Elevator installation according to one of the preceding claims, characterized in that the elevator platform ( 200 . 202 ) has no doors. Elevator installation according to one of the preceding claims, characterized in that the suspension means ( 208 ) are fixed without a clamping device. Elevator installation according to one of the preceding claims, characterized in that as suspension means ( 208 ) Chains, steel cables or toothed belts are used. Lift installation according to one of the preceding claims, characterized in that the device has a 1: 1, 2: 1 or 3: 1 suspension of the elevator platform ( 200 . 202 ) having.