CA2155298A1 - Elevator car platform with several integrated functions - Google Patents
Elevator car platform with several integrated functionsInfo
- Publication number
- CA2155298A1 CA2155298A1 CA 2155298 CA2155298A CA2155298A1 CA 2155298 A1 CA2155298 A1 CA 2155298A1 CA 2155298 CA2155298 CA 2155298 CA 2155298 A CA2155298 A CA 2155298A CA 2155298 A1 CA2155298 A1 CA 2155298A1
- Authority
- CA
- Canada
- Prior art keywords
- floor
- car
- base
- platform
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Door Apparatuses (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention concerns an elevator car platform.
The platform includes a base constituted by a layer made of a light rigid composite material which is coated on its sides by two rigid skins, a sensitive layer acting as a load scale secured to the upper skin, an insulating cushion made of an elastic material covering said sensitive layer and ensuring the acoustic and antivibratory insulations of the car, a floor made of a light rigid material and coated with two rigid skins, said floor covering the entire surface of the insulating cushion except for a zone having a constant width and extending along the entrance edge of the car, and a door-sill profile having the same dimensions as said zone and provided with an upper flat face on which grooves are formed for guiding the lower edges of the doors, said profile being fixed in said zone so that its upper face is substantially at the same level as the upper face of the floor.
Figure 3.
The platform includes a base constituted by a layer made of a light rigid composite material which is coated on its sides by two rigid skins, a sensitive layer acting as a load scale secured to the upper skin, an insulating cushion made of an elastic material covering said sensitive layer and ensuring the acoustic and antivibratory insulations of the car, a floor made of a light rigid material and coated with two rigid skins, said floor covering the entire surface of the insulating cushion except for a zone having a constant width and extending along the entrance edge of the car, and a door-sill profile having the same dimensions as said zone and provided with an upper flat face on which grooves are formed for guiding the lower edges of the doors, said profile being fixed in said zone so that its upper face is substantially at the same level as the upper face of the floor.
Figure 3.
Description
21~5298 ELEVATOR CAR PLATFORM WITH SEVERAL INTEGRATED FUNCTIONS
FIELD OF THE INVENTION
The invention concerns a platform of an elevator car having several integrated functions.
BACKGROUND OF THE INVENTION
In conventional platforms for elevator cars, the different functions, such as the load scale function, the guiding of the doors at their lower edge, the acoustic and antivibratory insulation functions and the support floor function are fulfilled by separate elements which need to be assembled together in situ. Said platform comprises a rectangular frame constituted by steel beams welded together. On said frame lies a floor made of a steel plate, with interposition of several antivibratory and acoustic insulating blocks, made of rubber. Between the frame and the floor is inserted a load scale which is generally constituted by a housing equipped with several switches which define load thresholds on the basis of deformations of the floor and of the blocks. The platform also includes at its entrance edge a door-sill profile for guiding the lower edge of the doors of the elevator car.
It is obvious that such a platform which uses massive steel elements is heavy and expensive. Moreover, the mounting of the platform is long and complicated since the operator needs to secure on the site the insulating blocks and the load scale to the frame and then to fix the floor and the door-sill profile. Furthermore, the antivibratory and acoustic insulation functions are ineffective due to the fact that the blocks are secured only at discreet points of the platform. Similarly, the load scale is sensitive only to loads located substantially above it.
Finally, due to the heavy weight of the elevator car, a powerful motor is required to actuate it.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a platform for an elevator car which integrates all the above-mentioned functions and which is lighter and less expensive than those of current platforms.
The invention concerns an elevator car platform which comprises:
- a base constituted by a layer of a light rigid material coated on its faces with two rigid skins, 5- a sensitive layer acting as a load scale and secured to the upper skin, - an insulating cushion made of an elastic material covering said sensitive layer and ensuring the acoustic and antivibratory insulations of the car, 10- a floor made of a light rigid material and coated with two rigid skins, said floor covering the entire surface of the insulating cushion, except for a zone having a constant width and extending along the entrance edge of the car, and 15a door-sill profile having the same ~;men~ions as said zone and provided with an upper flat face on which grooves are formed for guiding the lower edges of the doors, said profile being fixed in said zone so that its upper face is substantially at the same level as the upper 20face of the floor.
Advantageously, the base may be made of a composite material having a honeycombed structure whose alveoles are filled with an acoustic insulating foam. The base may also be made of any other laminated material, such as wood 25plates glued together.
The lower and upper skins of the base and of the floor may be constituted by steel sheets. Tapped inserts may be embedded in the edges of the base for screwing vertical girders or tie rods which normally connect the platform to 30an upper crossbeam of the car.
The sensitive layer may be constituted by punctual sensors or piezoelectric elements disposed at selected points of the base. Preferably, the sensitive layer comprises an optical fibre contorted in such a way as to 35form a flat network.
Thus, each of the components of the platform of the invention fulfils a specific function on the entire surface 215~29~
-of the platform. The integration of all the functions in the platform makes it possible to use a mlnlml]m of components and to simplify its construction. The weight of the platform is thus reduced, so as the time involved for constructing and for mounting the platform and consequently the cost of the platform are reduced.
Moreover, the integration of the antivibratory function over the entire surface of the honeycombed base results in a reduction of the level of vibrations and noise of the car compared with known types of platforms where the antivibratory insulation is ensured by rubber blocks localized only at local points of the surface of the platform.
The load scale function is significantly improved since the sensitive layer extends over the entire surface of the platform. The comfort of the passengers is thus improved at the starting of the car, owing to the suppression of jerks resulting from a better control of the motor. A better precision of stopping is obtained.
BRIEF DESCRIPTION OF THE DRAWINGS
There now follows a description of a non-restrictive embodiment of the invention given by way of example with reference to the accompanying drawings on which:
Figure 1 is a plane view from the top of the platform of the invention, Figure 2 is a section view along line II-II of figure 1, and Figure 3 is a section view along line III-III of figure 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to figures 1 to 3, the of the elevator car platform 10 comprises a base 12 constituted by a plate of constant thickness and having a honeycombed structure.
Said base may be made of aluminium or a composite material and its alveoles are filled with an acoustic foam which ensures the insulation of the platform against noise. The base may also be made of wooden plates glued together.
21~298 Metallic inserts (not shown) are embedded in the region of the peripheral edge of the base so as to allow the screwing of screws or bolts.
A lower skin 14 and an upper skin 16 both constituted by steel plates are glued or screwed to the horizontal faces of the base respectively. Two parallel edges of the lower skin are folded at a right angle so as to form vertical borders 18, 20 which cover the sections of the base. On these borders are secured the lower ends of four vertical tie rods 24 by means of bolts. The upper ends of the tie rods are connected to upper crossbeams (not shown).
A sensitive layer 26 acting as a load scale is secured to the upper skin 16. Said sensitive layer may be constituted by a single optical fibre contorted so as to form a flat network through which a luminous beam circulates. It is known that the amount of light transmitted by this fibre depends on the mechanical pressure exerted on it. The base 12 and its two skins 14, 16 slightly project with respect to the sensitive layer 26 on the region of the two parallel walls of the car (figure 2).
The sensitive layer 26 is covered with an elastic cushion 28 having the same surface area as the base and intended to carry out the antivibratory insulation of the car.
A floor 30 made of a light rigid material, such as a honeycombed composite material, is glued to the cushion.
The two faces of the floor are coated with skins 32, 34 made of steel. Tapped inserts 36 are embedded on the lateral edges of the floor for securing the vertical walls 38 of the car.
As shown on figures 1 and 3, the floor 30 and its skins 32, 34 extend over the entire surface of the cushion 28, except an entrance edge zone having a constant width and height. A door-sill profile 40 having the same height and width as said edge zone is secured in the latter, whereby its upper face is flush with the upper face of the skin 34.
The door-sill profile 40 has on its upper face several longitudinal grooves 42 (two in the case of figure 3) for guiding the lower edges of the doors.
The platform of the invention thus integrates all the conventional functions of the load scale, acoustic and antivibratory insulation and individual support floor. The platform is relatively light since it comprises few metallic elements. Its construction is very simple and does not require any welding of its elements. The platform is delivered on the mounting site fully assembled and ready to receive the walls 38 and the vertical tie rods 24.
FIELD OF THE INVENTION
The invention concerns a platform of an elevator car having several integrated functions.
BACKGROUND OF THE INVENTION
In conventional platforms for elevator cars, the different functions, such as the load scale function, the guiding of the doors at their lower edge, the acoustic and antivibratory insulation functions and the support floor function are fulfilled by separate elements which need to be assembled together in situ. Said platform comprises a rectangular frame constituted by steel beams welded together. On said frame lies a floor made of a steel plate, with interposition of several antivibratory and acoustic insulating blocks, made of rubber. Between the frame and the floor is inserted a load scale which is generally constituted by a housing equipped with several switches which define load thresholds on the basis of deformations of the floor and of the blocks. The platform also includes at its entrance edge a door-sill profile for guiding the lower edge of the doors of the elevator car.
It is obvious that such a platform which uses massive steel elements is heavy and expensive. Moreover, the mounting of the platform is long and complicated since the operator needs to secure on the site the insulating blocks and the load scale to the frame and then to fix the floor and the door-sill profile. Furthermore, the antivibratory and acoustic insulation functions are ineffective due to the fact that the blocks are secured only at discreet points of the platform. Similarly, the load scale is sensitive only to loads located substantially above it.
Finally, due to the heavy weight of the elevator car, a powerful motor is required to actuate it.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a platform for an elevator car which integrates all the above-mentioned functions and which is lighter and less expensive than those of current platforms.
The invention concerns an elevator car platform which comprises:
- a base constituted by a layer of a light rigid material coated on its faces with two rigid skins, 5- a sensitive layer acting as a load scale and secured to the upper skin, - an insulating cushion made of an elastic material covering said sensitive layer and ensuring the acoustic and antivibratory insulations of the car, 10- a floor made of a light rigid material and coated with two rigid skins, said floor covering the entire surface of the insulating cushion, except for a zone having a constant width and extending along the entrance edge of the car, and 15a door-sill profile having the same ~;men~ions as said zone and provided with an upper flat face on which grooves are formed for guiding the lower edges of the doors, said profile being fixed in said zone so that its upper face is substantially at the same level as the upper 20face of the floor.
Advantageously, the base may be made of a composite material having a honeycombed structure whose alveoles are filled with an acoustic insulating foam. The base may also be made of any other laminated material, such as wood 25plates glued together.
The lower and upper skins of the base and of the floor may be constituted by steel sheets. Tapped inserts may be embedded in the edges of the base for screwing vertical girders or tie rods which normally connect the platform to 30an upper crossbeam of the car.
The sensitive layer may be constituted by punctual sensors or piezoelectric elements disposed at selected points of the base. Preferably, the sensitive layer comprises an optical fibre contorted in such a way as to 35form a flat network.
Thus, each of the components of the platform of the invention fulfils a specific function on the entire surface 215~29~
-of the platform. The integration of all the functions in the platform makes it possible to use a mlnlml]m of components and to simplify its construction. The weight of the platform is thus reduced, so as the time involved for constructing and for mounting the platform and consequently the cost of the platform are reduced.
Moreover, the integration of the antivibratory function over the entire surface of the honeycombed base results in a reduction of the level of vibrations and noise of the car compared with known types of platforms where the antivibratory insulation is ensured by rubber blocks localized only at local points of the surface of the platform.
The load scale function is significantly improved since the sensitive layer extends over the entire surface of the platform. The comfort of the passengers is thus improved at the starting of the car, owing to the suppression of jerks resulting from a better control of the motor. A better precision of stopping is obtained.
BRIEF DESCRIPTION OF THE DRAWINGS
There now follows a description of a non-restrictive embodiment of the invention given by way of example with reference to the accompanying drawings on which:
Figure 1 is a plane view from the top of the platform of the invention, Figure 2 is a section view along line II-II of figure 1, and Figure 3 is a section view along line III-III of figure 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to figures 1 to 3, the of the elevator car platform 10 comprises a base 12 constituted by a plate of constant thickness and having a honeycombed structure.
Said base may be made of aluminium or a composite material and its alveoles are filled with an acoustic foam which ensures the insulation of the platform against noise. The base may also be made of wooden plates glued together.
21~298 Metallic inserts (not shown) are embedded in the region of the peripheral edge of the base so as to allow the screwing of screws or bolts.
A lower skin 14 and an upper skin 16 both constituted by steel plates are glued or screwed to the horizontal faces of the base respectively. Two parallel edges of the lower skin are folded at a right angle so as to form vertical borders 18, 20 which cover the sections of the base. On these borders are secured the lower ends of four vertical tie rods 24 by means of bolts. The upper ends of the tie rods are connected to upper crossbeams (not shown).
A sensitive layer 26 acting as a load scale is secured to the upper skin 16. Said sensitive layer may be constituted by a single optical fibre contorted so as to form a flat network through which a luminous beam circulates. It is known that the amount of light transmitted by this fibre depends on the mechanical pressure exerted on it. The base 12 and its two skins 14, 16 slightly project with respect to the sensitive layer 26 on the region of the two parallel walls of the car (figure 2).
The sensitive layer 26 is covered with an elastic cushion 28 having the same surface area as the base and intended to carry out the antivibratory insulation of the car.
A floor 30 made of a light rigid material, such as a honeycombed composite material, is glued to the cushion.
The two faces of the floor are coated with skins 32, 34 made of steel. Tapped inserts 36 are embedded on the lateral edges of the floor for securing the vertical walls 38 of the car.
As shown on figures 1 and 3, the floor 30 and its skins 32, 34 extend over the entire surface of the cushion 28, except an entrance edge zone having a constant width and height. A door-sill profile 40 having the same height and width as said edge zone is secured in the latter, whereby its upper face is flush with the upper face of the skin 34.
The door-sill profile 40 has on its upper face several longitudinal grooves 42 (two in the case of figure 3) for guiding the lower edges of the doors.
The platform of the invention thus integrates all the conventional functions of the load scale, acoustic and antivibratory insulation and individual support floor. The platform is relatively light since it comprises few metallic elements. Its construction is very simple and does not require any welding of its elements. The platform is delivered on the mounting site fully assembled and ready to receive the walls 38 and the vertical tie rods 24.
Claims (7)
1. Elevator car platform, comprising:
- a base constituted by a layer of a light rigid material coated on its faces with two rigid skins, - a sensitive layer acting as a load scale and secured to the upper skin, - an insulation cushion made of an elastic material covering said sensitive layer and ensuring the acoustic and antivibratory insulations of the car, - a floor made of a light rigid material and coated with two rigid skins, said floor covering the entire surface of the insulating cushion, except for a zone having a constant width and extending along the entrance edge of the car, and - a door-sill profile having the same dimensions as said zone and provided with an upper flat face on which grooves are formed for guiding the lower edges of the doors, said profile being fixed in said zone so that its upper face is substantially at the same level as the upper face of the floor.
- a base constituted by a layer of a light rigid material coated on its faces with two rigid skins, - a sensitive layer acting as a load scale and secured to the upper skin, - an insulation cushion made of an elastic material covering said sensitive layer and ensuring the acoustic and antivibratory insulations of the car, - a floor made of a light rigid material and coated with two rigid skins, said floor covering the entire surface of the insulating cushion, except for a zone having a constant width and extending along the entrance edge of the car, and - a door-sill profile having the same dimensions as said zone and provided with an upper flat face on which grooves are formed for guiding the lower edges of the doors, said profile being fixed in said zone so that its upper face is substantially at the same level as the upper face of the floor.
2. Platform according to claim 1, wherein the base is made of a light metal or composite material having a honeycombed structure, the alveoles of which are filled with an acoustic insulating foam.
3. Platform according to claim 1, wherein the base is made of wooden plates glued together.
4. Platform according to claim 1, wherein the lower skin of the base is provided on two parallel edges thereof with vertical borders which cover the edges of the base and on which are secured by means of bolts the lower ends of vertical tie rods.
5. Platform according to claim 1, wherein the sensitive layer is constituted by an optical fibre contorted to form a flat network.
6. Platform according to claim 1, wherein the floor is made of a honeycombed composite material.
7. Platform according to claim 1, wherein tapped inserts are embedded on the lateral edge of the honeycombed floor for securing the vertical walls of the car.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9409635A FR2723362B1 (en) | 1994-08-03 | 1994-08-03 | ELEVATOR CAB PLATFORM WITH MULTIPLE INTEGRATED FUNCTIONS. |
| FR94-09635 | 1994-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2155298A1 true CA2155298A1 (en) | 1996-02-04 |
Family
ID=9466038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2155298 Abandoned CA2155298A1 (en) | 1994-08-03 | 1995-08-02 | Elevator car platform with several integrated functions |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0700860B1 (en) |
| JP (1) | JPH0859142A (en) |
| CN (1) | CN1127215A (en) |
| CA (1) | CA2155298A1 (en) |
| DE (1) | DE69507097T2 (en) |
| FR (1) | FR2723362B1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY121825A (en) * | 1998-11-24 | 2006-02-28 | Inventio Ag | Highly rigid elevator car floor |
| AU2001279837A1 (en) * | 2000-07-14 | 2002-01-30 | Kone Corporation | Supporting framework for an elevator car |
| WO2004078628A2 (en) * | 2003-03-06 | 2004-09-16 | Inventio Ag | Lift with a 2:1 tooth belt guide |
| JP4657612B2 (en) * | 2003-03-06 | 2011-03-23 | インベンテイオ・アクテイエンゲゼルシヤフト | elevator |
| DE102007025545A1 (en) * | 2007-05-31 | 2008-12-04 | TÜV Rheinland Industrie Service GmbH | compensator |
| WO2012084518A1 (en) * | 2010-12-22 | 2012-06-28 | Inventio Ag | Elevator car floor comprising a filling compound |
| CN103381987B (en) * | 2013-07-11 | 2015-06-17 | 哈尔滨工程大学 | Anti-impact falling energy absorption unit board |
| DE202013010253U1 (en) * | 2013-09-20 | 2013-12-16 | HÜBNER GmbH & Co. KG | Floor of a person lifting device |
| DE202013008360U1 (en) * | 2013-09-20 | 2013-11-08 | HÜBNER GmbH & Co. KG | Carrying vehicle part |
| CN105947842A (en) * | 2016-06-29 | 2016-09-21 | 爱默生电梯有限公司 | Elevator car with buffer pad |
| CN109809278B (en) * | 2019-03-15 | 2023-09-12 | 杭州奥立达电梯有限公司 | Frame type light composite sedan bottom |
| CN110615338B (en) * | 2019-09-17 | 2020-11-20 | 浙江尼邦电梯有限公司 | Three prevent type and tow car for elevator |
| JP7369303B2 (en) * | 2020-09-07 | 2023-10-25 | 株式会社日立製作所 | Car and elevator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2690147B1 (en) * | 1992-04-16 | 1998-04-30 | Otis Elevator Co | PLATFORM, ESPECIALLY FOR ELEVATOR CAB AND LIFT, IN COMPOSITE MATERIAL. |
| JPH06115859A (en) * | 1992-10-06 | 1994-04-26 | Toshiba Corp | Elevator car |
-
1994
- 1994-08-03 FR FR9409635A patent/FR2723362B1/en not_active Expired - Fee Related
-
1995
- 1995-07-25 EP EP19950305189 patent/EP0700860B1/en not_active Expired - Lifetime
- 1995-07-25 DE DE1995607097 patent/DE69507097T2/en not_active Expired - Fee Related
- 1995-08-02 CA CA 2155298 patent/CA2155298A1/en not_active Abandoned
- 1995-08-02 CN CN 95115326 patent/CN1127215A/en active Pending
- 1995-08-03 JP JP19826195A patent/JPH0859142A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE69507097T2 (en) | 1999-08-05 |
| DE69507097D1 (en) | 1999-02-18 |
| JPH0859142A (en) | 1996-03-05 |
| CN1127215A (en) | 1996-07-24 |
| FR2723362B1 (en) | 1996-09-27 |
| FR2723362A1 (en) | 1996-02-09 |
| EP0700860B1 (en) | 1999-01-07 |
| EP0700860A1 (en) | 1996-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |