EP0329535B1 - Schwenkbare Schleusenschranke zur Sicherung der Plattform - Google Patents
Schwenkbare Schleusenschranke zur Sicherung der Plattform Download PDFInfo
- Publication number
- EP0329535B1 EP0329535B1 EP89400377A EP89400377A EP0329535B1 EP 0329535 B1 EP0329535 B1 EP 0329535B1 EP 89400377 A EP89400377 A EP 89400377A EP 89400377 A EP89400377 A EP 89400377A EP 0329535 B1 EP0329535 B1 EP 0329535B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gate
- lever
- levers
- pivoting
- articulated
- 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.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B11/00—Means for allowing passage through fences, barriers or the like, e.g. stiles
Definitions
- the present invention relates to a tilting safety barrier for a platform.
- Such protective barriers constituting an entrance to a platform, for example of which access is provided by a hoist or a handling machine such as a forklift. This barrier is closed towards the vacuum in which the freight elevator is mounted and it must be open when you want to access from the outside on the platform or from the inside on the freight elevator.
- a known lock barrier consists of a frame mounted at the edge of a platform, comprising two doors, namely an external door on the vacuum side and an internal door on the inside of the platform.
- Such a sluice barrier has the disadvantage that in the closed position of the passage leading to the void by the external gate, the latter can tilt, under the action of a horizontal force, towards the void and personnel risks fall into the void thus made accessible and suffer a serious accident.
- the object of the present invention is to overcome this drawback of the fact that it comprises means for locking the external gate in the closed position of the passage leading to the vacuum, opposing any tilting under the effect of a horizontal force exerted. on the external door in the direction of the vacuum and unlocked automatically by a pull exerted downwards on the internal door in the high and horizontal position.
- the lock barrier according to the invention can only give access to a vacuum when an internal door is exerted a pulling force down in order to close by this gate access to the barrier.
- the tilting safety safety barrier according to the invention is illustrated in the drawing figures in strong lines in the closed position and in broken and thin lines in the open position.
- the barrier is made up essentially of an armature 1 pivotally mounted around a horizontal axis and extending parallel to the edge 3 of a platform 4.
- This frame which is advantageously produced by means of tubes or bars assembled together by bolting or welding, comprises two doors, namely an external door 5 on the vacuum side where a freight elevator is installed, for example, not shown in the drawing. , and an internal door 6, on the side of the interior of the platform 4, also produced by tubes or bars.
- the lock barrier constitutes an entrance to the platform 4, defined by a free passage in the railing which generally borders the platform.
- the external gate 5 In the closed position of the barrier, shown in strong lines in FIG. 1 of the drawing, the external gate 5 is in a vertical position and resting on the ground of the platform 4, practically in line with the edge 3 of this plate. -form.
- the internal gate 6 is in a high position and horizontal, at a height sufficient to allow the free movement of operators carrying the load to be transferred to or from the freight elevator.
- the barrier is closed as a safety measure for the personnel working on platform 4.
- the lock barrier In order to free access to the freight elevator, the lock barrier must be brought back to the open position, which is done by doing rotate the internal gate 6 approximately 90 ° clockwise and bring it to the position illustrated in FIG. 1 in mixed and thin lines, that is to say vertically and resting on the floor of the platform 4.
- the external gate 5 must then be, also as shown in phantom and fine lines in FIG. 1, in a horizontal position and at the height sufficient to be able to place on the platform 4 a palletized load.
- This set of levers 7 comprises a first lever 8 which extends vertically upwards and which is integral with the external door 5, at its upper end, when this door is vertical. In this position the opposite lower part is supported on the floor of the platform 4, by means of an elastic stop E.
- the external gate 5 is also rigidly secured to a second lever 14, extending horizontally towards the inside of the platform, consolidated by a spacer 15 and fixed to the external gate 5 by one of its end parts.
- This lever 14 is articulated, at its end opposite to that which is fixed to the external gate 5, around a fixed point of articulation A. Due to this articulation A, the external gate 5 can only rotate around this point materializing a horizontal axis of rotation.
- the set of levers 7 also includes a control lever 9 secured to the internal door 6 and consolidated by a spacer 10.
- This control lever 9 which is inclined from bottom to top towards the inside of the platform in the closed position, is secured, near its end opposite the internal gate 6, of a rotation lever 11 extending downward, square with the control lever 9, therefore inclined up and down inward and consolidated by two spacers 12, on either side of the rotation lever.
- This rotation lever 11 is articulated, at its lower end at a point B located slightly lower and inward relative to the point of articulation A.
- the set of levers 7 then comprises a connecting rod 13, one end C of which is articulated on the upper end of the first lever 8 while the other end D of the connecting rod 13 is articulated on the end, opposite the gate internal 6, of the control lever 9.
- the set of levers 7 constitutes, owing to the connecting rod 13, the connecting means, doubly articulated in C and D, between the external door 5 and the internal door 6. Because the rotation lever 11 is articulated by its lower end part, on the fixed axis B, the internal gate 6 and the control lever 9 can only rotate around this axis B.
- control lever 9 is rigidly secured to a bent arm 16 close to the point of articulation D.
- This bent arm 16 extends above the control lever 9 and in the direction of the connecting rod 13 and it leads to its end a stop 17 preferably elastic. This stop 17 comes to bear on the connecting rod 13, when the internal door 6 is raised in its high position.
- the levers of the set of levers 7 are of a length such that, when the internal gate 6 is raised to its highest position and distant from the ground of the platform 4, the connecting rod 13 pushes the first lever 8 and with it the external gate 5 which tilts and comes to occupy its vertical position for closing the barrier-lock.
- the points of articulation B, C, D form a triangle whose apex D is above the line BC which joins the points of articulation B and C ( Figure 4).
- An upward force exerted on the internal door 6 causes the articulation point D to slightly lower as a result of the pressure of the bent arm 16 on the connecting rod 13 and the external door 5 is then rigidly fixed in place vertically, in the closed position by crushing the elastic stop E (FIGS. 1 and 2).
- the connecting means between the external door 5 and the internal door 6 are constituted by three pivoting levers 21, 22, 23 articulated around longitudinal axes located in the same vertical plane.
- Each of these levers is integral, in its middle, with a rotation lever 24, 25, 26, these rotation levers being longer and longer from the lowest lever 24 towards the highest lever 26.
- the rotation levers 24, 25, 26 are connected to the tilting levers 21, 22, 23 by one of their ends, they are perpendicular to the respective tilting levers, and their other ends are articulated around respective fixed axes 27, 28, 29, aligned vertically.
- each of the gates 5, 6 can be constituted by a flexible barrier connected to the ends of the tilting levers, this barrier being able to be formed, for example, of chains.
- the tilting of the highest lever 23 around the respective fixed axis 29 is limited upwards on one side by a stop 36 and on the other side by a second stop 37.
- the balancing of the tilting levers 21, 22, 23 around the fixed axes 27, 28, 29 is such that normally the sliding joints 30, 31, 32 on the external door 5 are placed lower and therefore this external door, carrying these sliding joints 30, 31, 32, is in the closed position, vertically.
- the tilting levers 21, 22, 23 are deployed as a fan, with the sliding joints 33, 34, 35 carried by the internal door 6, placed in the high position, aligned and close to each other horizontally. close on upper lever 23 bears against the stop 36.
- the lower lever 21 bears, by its lower end, on an elastic stop E disposed on the edge 3 of the platform 4.
- the internal door 6 is, of this done in the open position, as described for the previous embodiment.
- a third embodiment of the invention comprising the same means of connection between the external door 5 and the internal door 6, is provided, as shown in FIG. 7, with means for locking the external door 5 in the position of different from the previous embodiment.
- These locking means are constituted by a first articulated rod 41, at its two ends, on the one hand on the external end of the lower rocker lever 21, at 41a, and on the other hand on the upper rocker lever 23, at 41b , at the end of this lever, on the side of these rocking levers linked to the external door 5.
- These locking means then comprise a second connecting rod 42 articulated, at its two ends, on the one hand on the internal end of the rocking lever upper 23, at 42a, and on the other hand on the intermediate rocking lever, at 42b, as well as a third connecting rod 43, articulated, at its two ends, on the one hand on the internal end of the intermediate rocking lever 22, at 43a, and on the other hand on the lower tilting lever 21, at 43b.
- the set of second and third connecting rods 42, 43 is placed on the side of the rocking levers close to the internal door 6.
- the bottom rocking lever 21 is made in two parts 21a and 21b in extension of one another, joined at their ends joined by an elastic link 44 forming a shock absorber, which is arranged below the upper part 21b, between the latter and a support 45 secured to the lower part 21a.
- the upper part 21b pivoting downwards in a clockwise direction, in turn drives in this same direction the intermediate lever 22 to which the third connecting rod 33 is connected to its upper end constituting the articulation 44a.
- the line of action X of the second connecting rod 42 passes below the axis of rotation 28 of the intermediate lever 22 and from this moment the upper tilting lever 23 is rotated in the clockwise around its axis 29.
- the external gate 5 is then unlocked and it can pass into the open position.
- a device according to the invention is preferably placed on each lateral side of the barrier-lock.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Gates (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Emergency Lowering Means (AREA)
- Ladders (AREA)
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89400377T ATE63363T1 (de) | 1988-02-11 | 1989-02-09 | Schwenkbare schleusenschranke zur sicherung der plattform. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8801640 | 1988-02-11 | ||
FR8801640A FR2627214B1 (fr) | 1988-02-11 | 1988-02-11 | Barriere-ecluse basculante de securite pour plate-forme |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0329535A1 EP0329535A1 (de) | 1989-08-23 |
EP0329535B1 true EP0329535B1 (de) | 1991-05-08 |
Family
ID=9363190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89400377A Expired - Lifetime EP0329535B1 (de) | 1988-02-11 | 1989-02-09 | Schwenkbare Schleusenschranke zur Sicherung der Plattform |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0329535B1 (de) |
AT (1) | ATE63363T1 (de) |
DE (1) | DE68900076D1 (de) |
ES (1) | ES2023029B3 (de) |
FR (1) | FR2627214B1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114150979B (zh) * | 2021-10-23 | 2023-06-27 | 台州中穗科技有限公司 | 一种仓储用门结构 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1293623A (en) * | 1970-06-15 | 1972-10-18 | John Lewis And Company Ltd | Safety enclosure |
FR2520788A1 (fr) * | 1982-02-01 | 1983-08-05 | Roux Michel | Barriere-ecluse de securite pour plate-forme |
FR2601659A1 (fr) * | 1986-07-21 | 1988-01-22 | Simon Andre | Dispositif de securite pour plate-forme de palettisation |
-
1988
- 1988-02-11 FR FR8801640A patent/FR2627214B1/fr not_active Expired - Lifetime
-
1989
- 1989-02-09 ES ES89400377T patent/ES2023029B3/es not_active Expired - Lifetime
- 1989-02-09 AT AT89400377T patent/ATE63363T1/de not_active IP Right Cessation
- 1989-02-09 DE DE8989400377T patent/DE68900076D1/de not_active Expired - Lifetime
- 1989-02-09 EP EP89400377A patent/EP0329535B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2627214B1 (fr) | 1990-06-29 |
ATE63363T1 (de) | 1991-05-15 |
DE68900076D1 (de) | 1991-06-13 |
FR2627214A1 (fr) | 1989-08-18 |
ES2023029B3 (es) | 1991-12-16 |
EP0329535A1 (de) | 1989-08-23 |
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