WO2007085881A1 - Fast assembly device for metal parts such as elevator landing door frame elements - Google Patents

Fast assembly device for metal parts such as elevator landing door frame elements Download PDF

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Publication number
WO2007085881A1
WO2007085881A1 PCT/IB2006/000157 IB2006000157W WO2007085881A1 WO 2007085881 A1 WO2007085881 A1 WO 2007085881A1 IB 2006000157 W IB2006000157 W IB 2006000157W WO 2007085881 A1 WO2007085881 A1 WO 2007085881A1
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WO
WIPO (PCT)
Prior art keywords
slot
clip
assembly device
per
clip element
Prior art date
Application number
PCT/IB2006/000157
Other languages
French (fr)
Inventor
David Pillin
Stéphane BRIEUC
Original Assignee
Otis Elevator Company
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Otis Elevator Company filed Critical Otis Elevator Company
Priority to PCT/IB2006/000157 priority Critical patent/WO2007085881A1/en
Publication of WO2007085881A1 publication Critical patent/WO2007085881A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/30—Constructional features of doors or gates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/30—Constructional features of doors or gates
    • B66B13/306—Details of door jambs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
    • F16B17/008—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation of sheets or plates mutually

Definitions

  • the invention relates to a device for fast assembly of metal parts such as elevator landing door frame elements.
  • Elevator landing door frame elements are currently assembled using nuts and bolts with washers, fitted and tightened by on-site operators using special wrenches. However, this relatively fastidious operation is costly in terms of labor and fittings .
  • the invention addresses these shortcomings with a device for assembling two metal sheet parts together at one or more fastening points, particular for elevator landing door frame elements, characterized in that a first part has a clip element at the fastening point and a second part has a matching slot complementary of the clip element within a fitting clearance, wherein the clip element is adapted to enter the slot at the fastening point in a first insertion displacement Tl followed by a translation travel T2 of one part with respect to the other for assembly, and in that the first part and the second part include at least one locking element to arrest the translation travel T2 of the clip element in the corresponding slot.
  • said device may include as many clip elements as fastening points are required for proper assembly of said metal parts.
  • clip elements are adapted to be engaged using the same insertion displacement Tl and translation travel T2 to assemble the parts.
  • the number of locking elements or tongue elements and of the associated second slots required to arrest translation may be reduced as required and sufficient to arrest the translation travel T2 of a greater number of clip elements.
  • said metal parts can be assembled without the need for rivets or for nuts and bolts, said metal sheet parts being manufactured to include the clip, tongue and slot features directly, in a fast and economical manner.
  • the assembly of said parts does not require a punctual fitting of screws, rivets, bolts, washers and nuts at each fastening point, but a simple operation involving insertion and translation of one part with respect to the other, to engage said clip elements into each of the respective slots, followed by bending of the tongues into each of said secondary slots to arrest their position, at fewer locations than there are actual fastening points.
  • This assembly process is faster than assembly involving screws or bolts as above.
  • the clip element includes a clamp section and a stop section, the clamp section being configured to contact the second part during the translation travel T2 and when the stop section is in contact with an edge of the slot.
  • Said clip element is advantageously shaped with a front entry 1 side on the front of its body part that is narrower than the matching slot on the other part and raised at a height greater than the thickness of the metal sheet of said other part bearing the slot to accommodate it, a body part having in its second, rear, part the same width, within the fitting translation clearance, as the slot that accommodates it, a clamp part provided inwards in said body part, preferably in the middle thereof with a height lower than the thickness of the metal sheet of said other part bearing the slot that accommodates it, so that the two metal sheets are clamped when the translation travel T2 of the clip element is performed, and a rear stop part provided with an edge that abuts against a complementary edge of the slot that accommodates it, wherein said edge also forms the entry edge of the clip, and the engagement of the clip element into its slot is facilitated by its entry side engaging the corresponding entry edge of the slot, wherein the translation travel for engagement T2 proceeds with very slight lateral clearance, with the clamp part being tightened on the metal sheet of said
  • the slot accommodating the clip element is advantageously rectangular, with a width equivalent to that of the clip element, within a fitting clearance, and a length greater than that of the clip element, in order to facilitate insertion of the clip into the slot for engagement and fastening.
  • Said tongue element advantageously is V-shaped or rounded, and the corresponding slot is rectangular, with the bend of said tongue element being located at a variable position along its length to be tightly applied against one of the longitudinal sides of the slot, independently from slight variations in translation of the engagement of the clip element in its slot. Bending can advantageously be performed manually by inserting a rod (such as a screwdriver shaft) into one of a number of holes formed in the tongue element for this purpose.
  • a rod such as a screwdriver shaft
  • Figure Ia is a side view before assembly of two metal sheet parts featuring an assembly device according to this invention, with two clip elements and one locking tongue element,
  • Figure Ib is a top view of the two parts from Figure Ia,
  • Figure 2a is a side view of the two parts after assembly
  • Figure 2b is a top view of the two parts from Figure 2a
  • Figure 3 is a perspective view of an assembly of the two parts, i.e. a closure plate for a frame column plate in an elevator landing door.
  • FIG. 1 shows a simple case of assembly of two metal sheets, which might be as shown by Figure 3 a closure plate 1 for a frame column plate 3 in an elevator landing door.
  • this assembly features clip elements 5, of which two are represented, and a locking element 7, e.g. in the middle of said two clip elements 5 ( Figure Ib) , to secure the fastening engagement of parts 1 and 3 by the clip elements.
  • the left-hand metal sheet 1 carries the clip elements 5 and the right-hand metal sheet 3 the locking element 7.
  • the locking element 7 ( Figure Ib) consists of a V-shaped tongue element 9 (which could alternatively be semi-circular or in any frustoconical shape) obtained by a surrounding cut ⁇ out 10 obtained e.g. by a metal sheet punching operation.
  • the tongue 9 has two holes 11 in its surface along its length, used for bending it out by means of a screwdriver shaft at various locations along its length or for unbending it with in order to unlock the clip element after it has been secured.
  • the clip element 5 has a generally S-shaped profile ( Figure Ia) .
  • the two slots 13, 15 that respectively accommodate the clip element 5 and the tongue element 9 are formed ( Figure Ib) out of the metal sheets 3 and 1 opposite these elements, meaning the right-hand metal sheet 3 for the slot 13 accommodating the clip element and the left-hand metal sheet 1 for the slot 15 accommodating the tongue element 9.
  • These slots 13,15 are rectangular, with a vertical longitudinal development for slot 13 for the clip element and a horizontal longitudinal development for the slot 15 for the tongue element.
  • the slot 13 for the clip element has an outlined cut adapted to accommodate the clip element 5 with a small clearance during the insertion displacement Tl and with a very small lateral clearance during the subsequent upward translation travel T2, as shown by the arrows in Figures Ia and Ib.
  • the slot 15 for the tongue element 9 is placed on metal sheet 1 to accommodate the tongue element 9 at the end of the translation travel T2 on a distance d ( Figure 2b), before it is bent downwards from the plane of Figure 2b in its slot 15, along its folding line 19, with its V-shaped edge 17 resting against the corresponding longitudinal edge 21 of the slot 15.
  • the clip elements 5 are identical, located the same way round, and at the same height on the corresponding metal sheet 1.
  • Each clip element has a body part 23 shaped symmetrically about a central longitudinal plane, in a bottom-to-top direction, with a front entry side 25, a clamp part 27 located about mid-way along the clip length, a full-width part 29 extending downwards from the clamp part 27, and a lower stop part 31.
  • the clip elements 5 are inserted plumb with their respective slots 13 ( Figure Ib) by bringing together parts 1 and 3 in the direction of insertion displacement Tl, prior to the translation travel T2 (on a distance d) , wherein the end 33 of the entry side 25 is located beneath the upper edge 35 of the slot 13, with the corresponding clearance facilitating the insertion of the clip element into the slot.
  • This entry side 25 is thus provided with a horizontal straight upper edge 33 rounded at its angles and developed symmetrically about a mid-longitudinal plane, with a frustoconical shape widening down to a level slightly lower than the clamp part 27.
  • the entry side 25 has a flat surface and is inclined outwards, wherein its upper edge 33 is higher than the metal sheet 3 to be accommodated, which may or may not be as thick as metal sheet 1.
  • the clamp part 27 is formed by a horizontal folding line 37 across the clip body 23, which has a rounded surface at its bottom and is spaced from the plane of the metal sheet 1 by a distance smaller than the thickness of metal sheet 3. This clamp part 27 is designed to be raised to the thickness of metal sheet 3 to clamp it during the translation travel T2 of the clip element 5 into its slot 13.
  • the wider entry side 29 widens gradually up to the width of the corresponding slot, less fitting ' clearance, with two vertical (parallel) lateral sides 39 allowing to guide the translation travel for engagement T2 of the clip into its slot 13 as shown by the arrows on Figures Ia and Ib.
  • This part 29 is flat and inclined outwards from the clamp part 27 to a lower stop part 31 with which it is joined by a rounded surface or cylinder portion 41.
  • the rounded cylinder portion joint 41 provides an elastic return of the clamp part 27 to a tight contact against the metal sheet 3 when the clip element 5 is engaged.
  • the clamp part 27 may also be located closer to the stop part 31 than to the end 33, which provides a higher clamping strength on metal sheet 1.
  • the stop part 31 has a straight edge 43, which is horizontal on Figure Ib and is designed to abut against the corresponding (complementary) edge of the slot 13.
  • the operation of the device shall then be described.
  • the purpose is to assemble metal sheet 1 bearing the clip elements 5 onto metal sheet 3 bearing the corresponding slots 13 and the tongue elements 9 to secure the engagement of clip elements 5.
  • the clip elements 5 on metal sheet 1 are aligned with their respective slots 13 on metal sheet 3 then inserted therein ( Figures Ia, Ib) by a first translation travel for engagement Tl, upon which metal sheets 1 and 3 come into contact with each other.
  • the part 1 with clip elements 5 is then slid according to arrows T2 on the stationary part 3 facing the latter.
  • the clip elements 5 are then displaced in a second translation T2 into their slot 13, first opening up with their entry side 25 on the entry edge 35 of the slot 13 then clamping the metal sheet 3 during translation.
  • Translation T2 is guided on the lateral sides 39 of the clip elements 5 sliding along longitudinal edges of the slots 13 to the end of the translation travel, upon which the stop part 31 abuts against the corresponding edge 35 of the slot 13.
  • the tongue element 9 on the stationary part 3 is slightly desaligned with the corresponding slot 15 that rose into place simultaneously with the clip elements 5, and the tongue element 9 can simply be bent outward, e.g.
  • FIG. 3 shows such an assembly of the parts relating respectively to a closure plate 1 and a frame column 3 in an elevator landing door.
  • the assembly parts 1, 3 may include any number of clip elements 5, each adapted to enter and be translated completely together into their respective slots 13, as well as a sufficient number of locking elements
  • clip elements 5 and locking elements 7 may vary in shape, size and material, whether metallic or other, as long as the tongue element 9 can be bent to lock the clip element 5.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

Device for assembling two metal sheet parts (1, 3) together at one or more fastening points, particularly for elevator landing door frame elements, characterized in that said two parts (1, 3) are designed so that a first one (1) of the parts bears a clip element (5) at said fastening point and the other or second part (3) has a matching slot (13) complementary of the clip element (5) within a fitting clearance, wherein the clip element (5) is adapted to enter said slot (13) at said fastening point in a first insertion displacement (T1) followed by a translation travel (T2) of one part (1) with respect to the other (3) for assembly, and in that said parts (1, 3) are designed to include also at least one locking element (7) to arrest the translation travel (T2) of the clip element (5) in the corresponding slot (13).

Description

FAST ASSEMBLY DEVICE FOR METAL PARTS SUCH AS ELEVATOR LANDING
DOOR FRAME ELEMENTS
The invention relates to a device for fast assembly of metal parts such as elevator landing door frame elements.
Elevator landing door frame elements are currently assembled using nuts and bolts with washers, fitted and tightened by on-site operators using special wrenches. However, this relatively fastidious operation is costly in terms of labor and fittings .
The invention addresses these shortcomings with a device for assembling two metal sheet parts together at one or more fastening points, particular for elevator landing door frame elements, characterized in that a first part has a clip element at the fastening point and a second part has a matching slot complementary of the clip element within a fitting clearance, wherein the clip element is adapted to enter the slot at the fastening point in a first insertion displacement Tl followed by a translation travel T2 of one part with respect to the other for assembly, and in that the first part and the second part include at least one locking element to arrest the translation travel T2 of the clip element in the corresponding slot. Of course, said device may include as many clip elements as fastening points are required for proper assembly of said metal parts. These clip elements are adapted to be engaged using the same insertion displacement Tl and translation travel T2 to assemble the parts. The number of locking elements or tongue elements and of the associated second slots required to arrest translation may be reduced as required and sufficient to arrest the translation travel T2 of a greater number of clip elements.
With this arrangement, said metal parts can be assembled without the need for rivets or for nuts and bolts, said metal sheet parts being manufactured to include the clip, tongue and slot features directly, in a fast and economical manner. In addition, the assembly of said parts does not require a punctual fitting of screws, rivets, bolts, washers and nuts at each fastening point, but a simple operation involving insertion and translation of one part with respect to the other, to engage said clip elements into each of the respective slots, followed by bending of the tongues into each of said secondary slots to arrest their position, at fewer locations than there are actual fastening points. This assembly process is faster than assembly involving screws or bolts as above.
The clip element includes a clamp section and a stop section, the clamp section being configured to contact the second part during the translation travel T2 and when the stop section is in contact with an edge of the slot.
Said clip element is advantageously shaped with a front entry 1side on the front of its body part that is narrower than the matching slot on the other part and raised at a height greater than the thickness of the metal sheet of said other part bearing the slot to accommodate it, a body part having in its second, rear, part the same width, within the fitting translation clearance, as the slot that accommodates it, a clamp part provided inwards in said body part, preferably in the middle thereof with a height lower than the thickness of the metal sheet of said other part bearing the slot that accommodates it, so that the two metal sheets are clamped when the translation travel T2 of the clip element is performed, and a rear stop part provided with an edge that abuts against a complementary edge of the slot that accommodates it, wherein said edge also forms the entry edge of the clip, and the engagement of the clip element into its slot is facilitated by its entry side engaging the corresponding entry edge of the slot, wherein the translation travel for engagement T2 proceeds with very slight lateral clearance, with the clamp part being tightened on the metal sheet of said other part until it abuts with its stop part against said complementary entry edge of the slot, and the arresting tab or tong element is then bent to be tightly applied against the edge of the corresponding slot, thus arresting the clip element in position in the slot and securing the corresponding part assembly point.
Said edge of the arresting part is advantageously straight . The slot accommodating the clip element is advantageously rectangular, with a width equivalent to that of the clip element, within a fitting clearance, and a length greater than that of the clip element, in order to facilitate insertion of the clip into the slot for engagement and fastening.
Said tongue element advantageously is V-shaped or rounded, and the corresponding slot is rectangular, with the bend of said tongue element being located at a variable position along its length to be tightly applied against one of the longitudinal sides of the slot, independently from slight variations in translation of the engagement of the clip element in its slot. Bending can advantageously be performed manually by inserting a rod (such as a screwdriver shaft) into one of a number of holes formed in the tongue element for this purpose.
The invention is illustrated hereafter by an exemplary embodiment, with reference to the appended drawings in which:
Figure Ia is a side view before assembly of two metal sheet parts featuring an assembly device according to this invention, with two clip elements and one locking tongue element,
Figure Ib is a top view of the two parts from Figure Ia,
Figure 2a is a side view of the two parts after assembly,
Figure 2b is a top view of the two parts from Figure 2a, and Figure 3 is a perspective view of an assembly of the two parts, i.e. a closure plate for a frame column plate in an elevator landing door.
The drawings show a simple case of assembly of two metal sheets, which might be as shown by Figure 3 a closure plate 1 for a frame column plate 3 in an elevator landing door. Instead of the usual screw fastenings, this assembly features clip elements 5, of which two are represented, and a locking element 7, e.g. in the middle of said two clip elements 5 (Figure Ib) , to secure the fastening engagement of parts 1 and 3 by the clip elements.
Reference is made to the plane of the figures for part orientation, wherein a left-hand part is on the left part of the figure and the upward direction refers to the upward direction of the figure.
As can be seen in Figure Ia, the left-hand metal sheet 1 carries the clip elements 5 and the right-hand metal sheet 3 the locking element 7.
The locking element 7 (Figure Ib) consists of a V-shaped tongue element 9 (which could alternatively be semi-circular or in any frustoconical shape) obtained by a surrounding cut¬ out 10 obtained e.g. by a metal sheet punching operation. The tongue 9 has two holes 11 in its surface along its length, used for bending it out by means of a screwdriver shaft at various locations along its length or for unbending it with in order to unlock the clip element after it has been secured.
The clip element 5 has a generally S-shaped profile (Figure Ia) . The two slots 13, 15 that respectively accommodate the clip element 5 and the tongue element 9 are formed (Figure Ib) out of the metal sheets 3 and 1 opposite these elements, meaning the right-hand metal sheet 3 for the slot 13 accommodating the clip element and the left-hand metal sheet 1 for the slot 15 accommodating the tongue element 9. These slots 13,15 are rectangular, with a vertical longitudinal development for slot 13 for the clip element and a horizontal longitudinal development for the slot 15 for the tongue element. The slot 13 for the clip element has an outlined cut adapted to accommodate the clip element 5 with a small clearance during the insertion displacement Tl and with a very small lateral clearance during the subsequent upward translation travel T2, as shown by the arrows in Figures Ia and Ib.
The slot 15 for the tongue element 9 is placed on metal sheet 1 to accommodate the tongue element 9 at the end of the translation travel T2 on a distance d (Figure 2b), before it is bent downwards from the plane of Figure 2b in its slot 15, along its folding line 19, with its V-shaped edge 17 resting against the corresponding longitudinal edge 21 of the slot 15.
With specific reference to Figures Ia and Ib, the clip elements 5 are identical, located the same way round, and at the same height on the corresponding metal sheet 1.
Each clip element has a body part 23 shaped symmetrically about a central longitudinal plane, in a bottom-to-top direction, with a front entry side 25, a clamp part 27 located about mid-way along the clip length, a full-width part 29 extending downwards from the clamp part 27, and a lower stop part 31.
The clip elements 5 are inserted plumb with their respective slots 13 (Figure Ib) by bringing together parts 1 and 3 in the direction of insertion displacement Tl, prior to the translation travel T2 (on a distance d) , wherein the end 33 of the entry side 25 is located beneath the upper edge 35 of the slot 13, with the corresponding clearance facilitating the insertion of the clip element into the slot. This entry side 25 is thus provided with a horizontal straight upper edge 33 rounded at its angles and developed symmetrically about a mid-longitudinal plane, with a frustoconical shape widening down to a level slightly lower than the clamp part 27. The entry side 25 has a flat surface and is inclined outwards, wherein its upper edge 33 is higher than the metal sheet 3 to be accommodated, which may or may not be as thick as metal sheet 1.
The clamp part 27 is formed by a horizontal folding line 37 across the clip body 23, which has a rounded surface at its bottom and is spaced from the plane of the metal sheet 1 by a distance smaller than the thickness of metal sheet 3. This clamp part 27 is designed to be raised to the thickness of metal sheet 3 to clamp it during the translation travel T2 of the clip element 5 into its slot 13.
The wider entry side 29 widens gradually up to the width of the corresponding slot, less fitting' clearance, with two vertical (parallel) lateral sides 39 allowing to guide the translation travel for engagement T2 of the clip into its slot 13 as shown by the arrows on Figures Ia and Ib. This part 29 is flat and inclined outwards from the clamp part 27 to a lower stop part 31 with which it is joined by a rounded surface or cylinder portion 41. The rounded cylinder portion joint 41 provides an elastic return of the clamp part 27 to a tight contact against the metal sheet 3 when the clip element 5 is engaged. The clamp part 27 may also be located closer to the stop part 31 than to the end 33, which provides a higher clamping strength on metal sheet 1.
The stop part 31 has a straight edge 43, which is horizontal on Figure Ib and is designed to abut against the corresponding (complementary) edge of the slot 13. The operation of the device shall then be described. The purpose is to assemble metal sheet 1 bearing the clip elements 5 onto metal sheet 3 bearing the corresponding slots 13 and the tongue elements 9 to secure the engagement of clip elements 5. The clip elements 5 on metal sheet 1 are aligned with their respective slots 13 on metal sheet 3 then inserted therein (Figures Ia, Ib) by a first translation travel for engagement Tl, upon which metal sheets 1 and 3 come into contact with each other. The part 1 with clip elements 5 is then slid according to arrows T2 on the stationary part 3 facing the latter. The clip elements 5 are then displaced in a second translation T2 into their slot 13, first opening up with their entry side 25 on the entry edge 35 of the slot 13 then clamping the metal sheet 3 during translation. Translation T2 is guided on the lateral sides 39 of the clip elements 5 sliding along longitudinal edges of the slots 13 to the end of the translation travel, upon which the stop part 31 abuts against the corresponding edge 35 of the slot 13. In this position, the tongue element 9 on the stationary part 3 is slightly desaligned with the corresponding slot 15 that rose into place simultaneously with the clip elements 5, and the tongue element 9 can simply be bent outward, e.g. with a screwdriver shaft, to bring its edge 17 closest to the clip elements against the upper longitudinal edge 21 of the slot 15, said bend being produced along a folding line 19 leaning against said edge 21 of the slot 15. The clip elements 5 are then locked in position and the fastening points thus obtained are secure. The locked assembly is reversible Figure 3 shows such an assembly of the parts relating respectively to a closure plate 1 and a frame column 3 in an elevator landing door.
Such an assembly of the parts is faster than the conventional one with nuts and bolts and further there is a cost reduction because there is no tooling that needs to be completed during installation.
Obviously, while the drawings show two clip elements 5 and one locking element 7, the assembly parts 1, 3 may include any number of clip elements 5, each adapted to enter and be translated completely together into their respective slots 13, as well as a sufficient number of locking elements
7 to secure the assembly of parts 1 and 3.
Similarly, the clip elements 5 and locking elements 7 may vary in shape, size and material, whether metallic or other, as long as the tongue element 9 can be bent to lock the clip element 5.
While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, any modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of appended claims .

Claims

1. Device for assembling two metal sheet parts (1, 3) together at one or more fastening points, particularly for elevator landing door frame elements, characterized in that a first parts (1) has a clip element (5) at the fastening point and a second part (3) has a matching slot (13) complementary of the clip element (5) within a fitting clearance, wherein the clip element (5) is adapted to enter the slot (13) at the fastening point in a first insertion displacement (Tl) followed by a translation travel (T2) of one part (1) with respect to the other (3) for assembly, and in that the first part (1) and the second part (3) include at least one locking element (7) to arrest the translation travel (T2) of the clip element (5) in the corresponding slot (13) .
2. Assembly device as per claim 1, characterized in that it includes a plurality of clip elements (5) for assembly of said metal parts (1, 3), wherein the same insertion displacement (Tl) and translation travel (T2) are provided to assemble the parts (1, 3) .
3. Assembly device as per any one of the preceding claims, characterized in that the clip element (5) includes a clamp section (27) and a stop section (31), the clamp section is configured to contact the second part (3) during the translation (T2) and when the stop section (31) is in contact with an edge of the slot (13) .
4. Assembly device as per any one of the preceding claims, characterized in that the slot (13) accommodating the clip element (5) is rectangular, with a width equivalent to that of the clip element (5), within a fitting clearance, and a length greater than that of the clip element.
5. Assembly device as per any one of the preceding claims, characterized in that the clip element (5) has a generally S- shaped profile.
6. Assembly device as per claims 1 to 5, characterized in that said locking element (7) includes one of the first part (1) and the second part (3) having a tongue element (9) that can be bent transversally with respect to said translation travel (T2) and the other of the first part (1) and the second part (3) has a second slot (15) that can accommodate said tongue element (9) to arrest said translation travel (T2) of the clip element (5) into its slot (13) to hold said two metal parts (1, 3) together at the fastening point.
7. Assembly device as per claim 6, characterized in that said tongue element (9) has a frustoconical shape, e.g. a V- shape, and the corresponding slot (15) is rectangular, wherein the bending of said tongue element (9) is variable to adapt tightly with one edge (17) to the longitudinal edges (21) of the slot (15) .
8. Assembly device as per any one of claims 6 or 7, characterized in that said tongue element (9) includes at least one hole (11) that allows bending it manually by means of a rod (e.g. a screwdriver shaft) inserted into the hole (11) .
9. Assembly device as per any one of claims 6 to 8, characterized in that the slot (15) for the tongue element (9) is placed on the metal sheet (1) to accommodate the tongue element (9) into the corresponding slot (15) at the end of the translation travel (T2) of the clip element (5) in its slot (13) .
10. Assembly device as per claim 9, characterized in that said tongue element (9) is bent so that its edge (17) is applied on the corresponding longitudinal side (21) of the slot (15), using a folding line (19).
11. Assembly device as per any one of the preceding claims, characterized in that the number of locking elements (7) or tongue elements (9) and associated slots (15) may be reduced as required and sufficient to arrest the translation travel (T2) of a greater number of clip elements (5) .
PCT/IB2006/000157 2006-01-27 2006-01-27 Fast assembly device for metal parts such as elevator landing door frame elements WO2007085881A1 (en)

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Cited By (2)

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DE102008060037A1 (en) * 2008-12-02 2010-07-08 Daimler Ag Fastening arrangement for fastening adapter element to lever part of passenger car seat, has lever part including retaining opening, and connection element whose retaining part holds edge area of retaining opening in end position
EP2985475A1 (en) 2014-08-14 2016-02-17 Thales Non-detachable closure system

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US4875552A (en) * 1986-07-29 1989-10-24 Montgomery Elevator Company Modular elevator cab construction
JP2002187681A (en) * 2000-12-21 2002-07-02 Toshiba Corp Elevator cage and its assembling method
EP1657205A1 (en) * 2004-11-11 2006-05-17 Inventio Ag Elevator car

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JP2002187681A (en) * 2000-12-21 2002-07-02 Toshiba Corp Elevator cage and its assembling method
EP1657205A1 (en) * 2004-11-11 2006-05-17 Inventio Ag Elevator car

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* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 11 6 November 2002 (2002-11-06) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008060037A1 (en) * 2008-12-02 2010-07-08 Daimler Ag Fastening arrangement for fastening adapter element to lever part of passenger car seat, has lever part including retaining opening, and connection element whose retaining part holds edge area of retaining opening in end position
EP2985475A1 (en) 2014-08-14 2016-02-17 Thales Non-detachable closure system

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