A tool-free quick-install inclined tie rod assembly

Abstract

The present invention discloses a tool-free quick-install diagonal tie rod assembly, comprising a base, a long support piece, a middle support piece, a hanging support piece, a short support piece, a connecting piece and a diagonal tie rod body, wherein the diagonal tie rod body comprises a horizontal part and a vertical part which are vertically arranged in one piece, one end of the connecting piece is connected with a first quick-install connecting strip, the cross-sectional dimensions of the first quick-install connecting strip, the horizontal part and the vertical part are respectively smaller than the cross-sectional dimensions of the C-shaped groove on the door and window sash profile, the other end of the connecting piece is connected with a locking point mounting block via a corner connecting strip, a plurality of side locking points are riveted on the locking point mounting block, the corner connecting strip can move along the junction of the horizontal part and the vertical part, and the door and window hardware system is equipped with a first quick-install connecting piece, which is detachably buckled and connected with the first quick-install connecting piece. The present invention can realize the quick installation of the diagonal tie rod assembly on the door and window sash profile without the aid of other tools, and the operation is convenient. In addition, the vertical part is used as an extended corner to improve the sealing of the side of the door and window.

Description

Technical Field

[0001] The invention relates to the technical field of door and window hardware accessories, in particular to a tool-free quick-install inclined tie rod assembly. Background Art

[0002] As an important part of the hardware system of inside-out doors and windows, the inclined rod assembly is installed at the corner of the upper end of the doors and windows. The high position and narrow operating space make the installation operation extremely inconvenient. The inclined rod assembly is installed at the corner of the upper end of the door and window sash profile, and is connected to the aluminum strip and other connectors through rivets. The connector is horizontally installed on the top of the door and window sash profile and connected to the corner assembly through rivets. After the door and window hardware system is installed, it is also cumbersome, time-consuming and laborious to adjust the installation position of the inclined rod assembly and the relative position between the inclined rod assembly and other components. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a tool-free quick-install diagonal tie rod assembly in view of the deficiencies in the prior art.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a tool-free quick-install diagonal tie rod assembly, including a base, a long support piece, a middle support piece, a suspension support piece, a short support piece, a connecting piece and a diagonal tie rod body, the diagonal tie rod body including a horizontal part and a vertical part vertically arranged in an integral manner, the long support piece and the middle support piece are cross-riveted, one end of the long support piece is riveted to the base and the other end is slidably connected to the suspension support piece, one end of the middle support piece is slidably connected to the base and the other end is riveted to one end of the suspension support piece, the other end of the suspension support piece is slidably connected to the horizontal part, and the two ends of the short support piece are respectively connected to the suspension support piece and the The horizontal part is riveted, and the connecting piece can be horizontally slidably installed in the horizontal part. One end of the connecting piece is connected to a first quick-release connecting strip. The cross-sectional dimensions of the first quick-release connecting strip, the horizontal part and the vertical part are respectively smaller than the cross-sectional dimensions of the C-shaped groove on the door and window sash profile. The other end of the connecting piece is connected to a locking point mounting block via a corner connecting strip. A plurality of side locking points are riveted on the locking point mounting block. The corner connecting strip can move along the junction of the horizontal part and the vertical part. The door and window hardware system is equipped with a first quick-release connector, and the first quick-release connector is detachably buckled with the first quick-release connecting strip.

[0005] When installing the inclined tie rod assembly of the present invention, the inclined tie rod body is directly inserted into the C-shaped groove at the corner of the upper end of the door and window sash profile, and then the first quick-install connector is buckled and connected with the first quick-install connector strip, so that the inclined tie rod assembly can be quickly installed on the door and window sash profile, and the quick installation process does not require the aid of other tools, and the operation is convenient. In addition, the vertical part is used as an extended corner to improve the sealing of the side of the door and window.

[0006] Preferably, the locking point mounting block is connected to a second quick-release connection strip, the door and window hardware system is equipped with a second quick-release connection piece, and the second quick-release connection piece is detachably buckled and connected to the second quick-release connection strip. After designing the second quick-release connection strip and the second quick-release connection piece, the length of the extended corner can be further increased, so that in actual applications, different locking points can be added to the second quick-release connection piece as needed to meet different installation requirements for doors and windows in different occasions.

[0007] Preferably, the width of the horizontal portion is smaller than the width of the entrance of the C-shaped groove, a first inserting strip is integrally provided on one side of the horizontal portion, and the first inserting strip is provided along the length direction of the horizontal portion; the first quick-release connecting strip and the second quick-release connecting strip have the same structure, and respectively include a connecting strip body, the width of the connecting strip body is smaller than the width of the entrance of the C-shaped groove, a boss is provided on the front side of the connecting strip body, the boss is provided along the length direction of the connecting strip body, and the edges on both sides of the boss in the length direction are uneven, a second inserting strip is provided on one side of the connecting strip body, and the height of the second inserting strip is smaller than the height of the C-shaped groove The depth of the second insertion strip and the first insertion strip are located on the same side of the inclined tie rod assembly; the first quick-release connector and the second quick-release connector have the same structure, respectively including a connector body, the width of the connector body is adapted to the width of the entrance of the C-shaped groove, the back of the connector body is provided with a groove adapted to the boss, the groove is arranged along the length direction of the connector body, and the edges of the two sides of the length direction of the groove are uneven; after the first quick-release connector and the second quick-release connector are respectively buckled and connected with the first quick-release connecting strip and the second quick-release connecting strip, their bosses are respectively embedded in the grooves. The first quick-release connecting strip and the first quick-release connecting strip, as well as the second quick-release connecting strip and the second quick-release connecting strip, can be quickly connected and assembled to realize the rapid connection of the inclined tie rod assembly with other parts of the door and window hardware system. During installation, slightly tilt the main body of the diagonal tie rod, insert the first and second insertion strips into the horizontal and vertical C-shaped grooves at the corners of the upper end of the door and window sash profile, so that the first quick-install connection strip and the horizontal part and the second quick-install connection strip and the vertical part are embedded in the horizontal and vertical C-shaped grooves, and then the first quick-install connector and the second quick-install connector are buckled with the first quick-install connection strip and the second quick-install connection strip respectively, thus completing the quick installation of the diagonal tie rod assembly on the door and window sash profile. During the installation process, the buckling positions of the first quick-install connection strip and the first quick-install connection strip and the second quick-install connection strip and the second quick-install connection strip can be flexibly determined according to needs, so as to conveniently adjust the relative position between the diagonal tie rod assembly and other parts. When the length of the first quick-install connection strip, the first quick-install connection strip, the second quick-install connection strip or the second quick-install connection strip is too long, it can be shortened before installation.

[0008] Preferably, the horizontal part and the vertical part are provided with narrow sections respectively, and the narrow sections are provided with buckles, the buckles include a buckle body, the buckle body is provided with a positioning groove with an opening facing upward, the width of the buckle body is adapted to the width of the entrance of the C-shaped groove, the tops of the two side walls of the buckle body are respectively connected with positioning strips and pressure strips, the height of the pressure strips is higher than the positioning strips, and the outer side surface of the side wall of the buckle body provided with the pressure strips is provided with a plurality of positioning blocks, after installation, the positioning strips are close to the profile on the entrance side of the C-shaped groove, and the plurality of positioning blocks are inserted in the C-shaped groove, and when the pressure strips are pressed and pulled upward in the direction of the positioning strips, the inclined rod body can be taken out of the C-shaped groove. The design of the buckle facilitates the overall disassembly of the inclined rod assembly without tools during the adjustment process, so as to adjust the inclined rod to the best position.

[0009] Preferably, a first protrusion and a second protrusion are respectively provided on both sides of the narrow section, a first card slot and a second card slot are respectively opened on both side walls of the buckle body, and the first protrusion and the second protrusion are respectively embedded in the first card slot and the second card slot.

[0010] Preferably, the hanging support piece is provided with a first adjusting piece, one end of the first adjusting piece is vertically provided with a positioning piece, the upper surface of the first adjusting piece is uneven, the first adjusting piece is provided with a first waist-shaped hole, the long axis of the first waist-shaped hole is arranged along the width direction of the hanging support piece, the first connecting screw passes through the first waist-shaped hole and is threadedly connected to the hanging support piece, when the door and window are closed, the positioning piece is close to the side of the door and window sash profile outside the C-shaped groove. The first adjusting piece has an anti-swaying effect on the door and window. By adjusting the position of the first adjusting piece, its anti-swaying effect is ensured.

[0011] Preferably, the horizontal part is slidably connected with a diagonal tie rod locking point, the suspension piece is provided with a second waist-shaped hole adapted to the diagonal tie rod locking point, and the long axis of the second waist-shaped hole is arranged along the length direction of the suspension piece. When the door and window sash is closed, the diagonal tie rod locking point enters the second waist-shaped hole to ensure safety.

[0012] Preferably, the locking point of the diagonal tie rod is an eccentric rivet, which can adjust the position of the diagonal tie rod body, so that the diagonal tie rod body can be installed on the door and window sash profile more firmly and reliably.

[0013] Preferably, a second adjustment piece is provided in the middle of the horizontal part, one end of the second adjustment piece, the short support piece and the horizontal part are riveted together by a first rivet, the other end of the second adjustment piece is riveted with an adjustment rivet, the adjustment rivet is an eccentric rivet, a third waist-shaped hole is provided on the suspension support piece, a fourth waist-shaped hole is provided on the short support piece, and when the diagonal tie rod assembly is closed, the third waist-shaped hole overlaps with the fourth waist-shaped hole and faces the adjustment rivet. During installation, after the first quick-release connecting strip is buckled and connected with the first quick-release connecting piece, when the diagonal tie rod assembly is closed, the position of the diagonal tie rod body can be fine-tuned left and right by adjusting the rivet. During use after the door and window sashes are installed, when the doors and windows are in a closed or open state, the position of the diagonal tie rod body can also be fine-tuned left and right by adjusting the rivet.

[0014] Preferably, the corner connecting strip is composed of multiple stacked metal sheets to ensure the strength and transmission effect of the corner connecting strip.

[0015] Compared with the prior art, the present invention has the following advantages: when installing the inclined tie rod assembly of the present invention, the inclined tie rod body is directly inserted into the C-shaped groove at the upper corner of the door and window sash profile, and then the first quick-install connector is buckled and connected with the first quick-install connector strip, so that the inclined tie rod assembly can be quickly installed on the door and window sash profile, and the quick installation process does not require the aid of other tools, and the operation is convenient. In addition, the vertical part is used as an extended corner to improve the sealing of the side of the door and window. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an appearance diagram of the inclined tie rod assembly in the embodiment in an open state;

[0017] Figure 2 It is a structural exploded view of the inclined tie rod assembly in the embodiment;

[0018] Figure 3 for Figure 1 The appearance of the middle diagonal tie rod assembly after flipping 180 degrees;

[0019] Figure 4 This is an appearance diagram of the buckle in the embodiment;

[0020] Figure 5 is an appearance diagram of the second quick-install connecting strip in the embodiment;

[0021] Figure 6 This is a partial appearance diagram of the first quick-release connector in the embodiment;

[0022] Figure 7 It is a top view of the effect after the inclined tie rod assembly is installed in the embodiment. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings.

[0024] The tool-free quick-install diagonal tie rod assembly of embodiment 1 is as follows: Figure 1 to Figure 6 As shown, it includes a base 1, a long support piece 2, a middle support piece 3, a suspension support piece 4, a short support piece 5, a connecting piece 6 and an inclined rod body 7. The inclined rod body 7 includes a horizontal portion 71 and a vertical portion 72 that are integrally arranged vertically. The long support piece 2 and the middle support piece 3 are cross-riveted. One end of the long support piece 2 is riveted to the base 1 and the other end is slidably connected to the suspension support piece 4. One end of the middle support piece 3 is slidably connected to the base 1 and the other end is riveted to one end of the suspension support piece 4. The other end of the suspension support piece 4 is slidably connected to the horizontal portion 71. Both ends of the short support piece 5 are riveted to the suspension support piece 4 and the horizontal portion 71 respectively. The connecting piece 6 can be horizontally slidably installed in the horizontal portion 71. One end of the connecting piece 6 is integrally connected with a first quick-install connecting strip 81. The first quick-install connecting strip 81, the horizontal portion 71 and the vertical portion 72 are integrally connected. The cross-sectional dimensions of the portion 72 are respectively smaller than the cross-sectional dimensions of the C-shaped groove 91 on the door and window sash profile 9. The other end of the connecting piece 6 is connected to the locking point mounting block 62 via the corner connecting strip 61. The lower end of the locking point mounting block 62 is integrally connected to the second quick-release connecting strip 82. The locking point mounting block 62 is riveted with a side locking point 63. The corner connecting strip 61 is composed of three stacked metal sheets. The corner connecting strip 61 can move along the junction of the horizontal portion 71 and the vertical portion 72. The door and window hardware system is equipped with a first quick-release connector 83 and a second quick-release connector (not shown in the figure) made of plastic. The first quick-release connector 83 is detachably buckled and connected to the first quick-release connecting strip 81, and the second quick-release connector is detachably buckled and connected to the second quick-release connecting strip 82.

[0025] In Embodiment 1, the width of the horizontal portion 71 is smaller than the width of the entrance of the C-shaped groove 91, and a first inserting strip 73 is integrally provided on one side of the horizontal portion 71, and the first inserting strip 73 is provided along the length direction of the horizontal portion 71; the first quick-release connecting strip 81 and the second quick-release connecting strip 82 have the same structure, and each includes a connecting strip body 84, and the width of the connecting strip body 84 is smaller than the width of the entrance of the C-shaped groove 91, and a boss 85 is provided on the front of the connecting strip body 84, and the boss 85 is provided along the length direction of the connecting strip body 84, and the edges of both sides of the boss 85 in the length direction are uneven, and a second inserting strip 86 is provided on one side of the connecting strip body 84, and the height of the second inserting strip 86 is smaller than the depth of the C-shaped groove 91, and the second inserting strip 86 and The first insertion strip 73 is located on the same side of the inclined tie rod assembly; the first quick-release connector 83 and the second quick-release connector have the same structure, and respectively include a connector body 87, the width of the connector body 87 is adapted to the width of the entrance of the C-shaped groove 91, and the back of the connector body 87 is provided with a groove 88 adapted to the boss 85, the groove 88 is arranged along the length direction of the connector body 87, and the edges of both sides of the groove 88 in the length direction are uneven. In this embodiment, the edges of both sides of the groove 88 and the boss 85 are serrated; after the first quick-release connector 83 and the second quick-release connector are respectively buckled and connected with the first quick-release connecting strip 81 and the second quick-release connecting strip 82, their bosses 85 are respectively embedded in the groove 88.

[0026] In Example 1, narrow sections 74 are respectively provided on the horizontal portion 71 and the vertical portion 72, and a buckle 75 is clamped on the narrow section 74. The buckle 75 includes a buckle body 76, and the buckle body 76 is provided with a positioning groove 77 with an opening facing upward. The width of the buckle body 76 is adapted to the width of the entrance of the C-shaped groove 91. The top ends of the two side walls of the buckle body 76 are respectively integrally connected with a positioning strip 78 and a pressure strip 79. The height of the pressure strip 79 is higher than the positioning strip 78. Two positioning blocks 70 are provided on the outer side surface of one side wall of the buckle body 76 where the pressure strip 79 is provided; first protrusions 741 and second protrusions 742 are respectively provided on both sides of the narrow section 74, and first clamping grooves 743 and second clamping grooves 744 are respectively opened on the two side walls of the buckle body 76. The first protrusions 741 and the second protrusions 742 are respectively embedded in the first clamping grooves 743 and the second clamping grooves 744.

[0027] In Example 1, a diagonal rod locking point 711 is slidably connected to the horizontal portion 71, and the diagonal rod locking point 711 is an eccentric rivet. A second waist-shaped hole 41 adapted to the diagonal rod locking point 711 is opened on the suspension plate 4, and the long axis of the second waist-shaped hole 41 is arranged along the length direction of the suspension plate 4.

[0028] The tool-free quick-install inclined tie rod assembly of embodiment 2 is different from embodiment 1 in that, in embodiment 2, a first adjusting piece 42 is provided on the suspension piece 4, a positioning piece 43 is integrally and vertically provided at one end of the first adjusting piece 42, the upper surface of the first adjusting piece 42 is uneven and serrated, a first waist-shaped hole 44 is provided on the first adjusting piece 42, the long axis of the first waist-shaped hole 44 is arranged along the width direction of the suspension piece 4, a first connecting screw 45 passes through the first waist-shaped hole 44 and is threadedly connected to the suspension piece 4, and when the door and window are closed, the positioning piece 43 is close to the suspension piece 4. The side of the door and window sash profile 9 is tightly attached to the outer side of the C-shaped groove 91; a second adjusting piece 712 is arranged in the middle of the horizontal portion 71, one end of the second adjusting piece 712, the short support piece 5 and the horizontal portion 71 are riveted together by a first rivet, and the other end of the second adjusting piece 712 is riveted with an adjusting rivet 713, and the adjusting rivet 713 is an eccentric rivet, a third waist-shaped hole 46 is provided on the hanging support piece 4, and a fourth waist-shaped hole 51 is provided on the short support piece 5. When the inclined rod assembly is closed, the third waist-shaped hole 46 overlaps with the fourth waist-shaped hole 51 and is directly opposite to the adjusting rivet 713.

[0029] When installing the above-mentioned inclined tie rod assembly, slightly tilt the inclined tie rod body 7, insert the first insertion strip 73 and the second insertion strip 86 into the horizontal and vertical C-shaped grooves 91 at the upper corners of the door and window sash profile 9, so that the first quick-install connecting strip 81 and the horizontal part 71 and the second quick-install connecting strip 82 and the vertical part 72 are embedded in the horizontal and vertical C-shaped grooves 91, and then the first quick-install connecting piece 83 and the second quick-install connecting piece are respectively buckled with the first quick-install connecting strip 81 and the second quick-install connecting strip 82, so that the quick installation of the inclined tie rod assembly on the door and window sash profile 9 is completed. The top view of the effect after installation is shown in FIG. Figure 7 . During the installation process, the buckling positions of the first quick-install connecting strip 81 and the first quick-install connecting piece 83 and the second quick-install connecting strip 82 and the second quick-install connecting piece can be flexibly determined as needed, so as to conveniently adjust the relative positions between the diagonal tie rod assembly and other parts. When the length of the first quick-install connecting strip 81, the first quick-install connecting piece 83, the second quick-install connecting strip 82 or the second quick-install connecting piece is too long, it can be shortened before installation. After installation, the positioning strip 78 is close to the profile on the entrance side of the C-shaped groove 91, and the two positioning blocks 70 are inserted in the C-shaped groove 91. When the pressure strip 79 is pressed and pulled up in the direction of the positioning strip 78, the diagonal tie rod body 7 can be removed from the C-shaped groove 91, and the tool-free overall disassembly of the diagonal tie rod assembly can be realized, so that the diagonal tie rod can be adjusted to the optimal position. The installation and disassembly processes of the above-mentioned diagonal tie rod assembly do not require the use of other tools, and the operation is convenient.

Claims

1. A tool-free quick-install diagonal tie rod assembly, comprising a base, a long support piece, a middle support piece, a suspension support piece, a short support piece, a connecting piece and a diagonal tie rod body, wherein the diagonal tie rod body comprises a horizontal portion and a vertical portion which are vertically arranged in an integral manner, wherein the long support piece and the middle support piece are cross-riveted, wherein one end of the long support piece is riveted to the base and the other end is slidably connected to the suspension support piece, wherein one end of the middle support piece is slidably connected to the base and the other end is riveted to one end of the suspension support piece, wherein the other end of the suspension support piece is slidably connected to the horizontal portion, wherein both ends of the short support piece are riveted to the suspension support piece and the horizontal portion respectively, and wherein the connecting piece can be horizontally slidably installed in the horizontal portion, wherein the connecting piece can be horizontally slidably installed in the horizontal portion, and ... One end of the connecting piece is connected to a first quick-install connecting strip, and the cross-sectional dimensions of the first quick-install connecting strip, the horizontal portion and the vertical portion are respectively smaller than the cross-sectional dimensions of the C-shaped groove on the door and window sash profile. The other end of the connecting piece is connected to a locking point mounting block via a corner connecting strip, and a plurality of side locking points are riveted on the locking point mounting block. The corner connecting strip can move along the junction of the horizontal portion and the vertical portion. The door and window hardware system is equipped with a first quick-install connecting piece, and the first quick-install connecting piece is detachably buckled and connected to the first quick-install connecting strip. The locking point mounting block is connected to a second quick-install connecting strip. The door and window hardware system is equipped with a second quick-install connecting piece, and the second quick-install connecting piece is detachably buckled and connected to the second quick-install connecting strip. The width of the horizontal portion is smaller than the width of the entrance of the C-shaped groove. A first insert is integrally provided on one side of the horizontal portion, and the first insert is provided along the length direction of the horizontal portion. The first quick-install connecting strip and the second quick-install connecting strip have the same structure and respectively include The invention comprises a connecting strip body, wherein the width of the connecting strip body is smaller than the width of the entrance of the C-shaped groove, a boss is provided on the front of the connecting strip body, the boss is arranged along the length direction of the connecting strip body, and the edges of the boss on both sides in the length direction are uneven, a second plug is provided on one side of the connecting strip body, the height of the second plug is smaller than the depth of the C-shaped groove, and the second plug and the first plug are located on the same side of the inclined tie rod assembly; the first quick-release connector and the second quick-release connector have the same structure and respectively include a connecting strip body, the width of the connecting strip body is adapted to the width of the entrance of the C-shaped groove, a groove adapted to the boss is provided on the back of the connecting strip body, the groove is arranged along the length direction of the connecting strip body, and the edges of the groove on both sides in the length direction are uneven; after the first quick-release connector and the second quick-release connector are respectively buckled and connected with the first quick-release connecting strip and the second quick-release connecting strip, their bosses are respectively embedded in the grooves; The hanging support piece is provided with a first adjusting piece, one end of the first adjusting piece is vertically provided with a positioning piece, the upper surface of the first adjusting piece is uneven, the first adjusting piece is provided with a first waist-shaped hole, the major axis of the first waist-shaped hole is arranged along the width direction of the hanging support piece, the first connecting screw passes through the first waist-shaped hole and is threadedly connected with the hanging support piece, when the door and window are closed, the positioning piece is close to the side of the door and window sash profile outside the C-shaped groove; the middle part of the horizontal part is provided with a second adjusting piece, one end of the second adjusting piece, the short support piece and the horizontal part are riveted by a first rivet, and the other end of the second adjusting piece is riveted with an adjusting rivet, and the adjusting rivet is an eccentric rivet, the hanging support piece is provided with a third waist-shaped hole, and the short support piece is provided with a fourth waist-shaped hole, when the inclined rod assembly is closed, the third waist-shaped hole overlaps with the fourth waist-shaped hole and faces the adjusting rivet.

2. The tool-free quick-install diagonal tie rod assembly according to claim 1, characterized in that: The horizontal portion and the vertical portion are respectively provided with narrow sections, and a buckle is clamped on the narrow section. The buckle includes a buckle body, and the buckle body is provided with a positioning groove with an opening facing upward. The width of the buckle body is adapted to the width of the entrance of the C-shaped groove. The tops of the two side walls of the buckle body are respectively integrally connected with positioning strips and pressure strips. The height of the pressure strip is higher than the positioning strip. The outer side surface of one side wall of the buckle body provided with the pressure strip is provided with a plurality of positioning blocks. After installation, the positioning strip is close to the profile on the entrance side of the C-shaped groove, and the plurality of positioning blocks are inserted in the C-shaped groove. When the pressure strip is pressed and pulled upward in the direction of the positioning strip, the inclined rod body can be taken out of the C-shaped groove.

3. The tool-free quick-install diagonal tie rod assembly according to claim 2, characterized in that: The two sides of the narrow section are respectively provided with a first protrusion and a second protrusion, and the two side walls of the buckle body are respectively provided with a first card slot and a second card slot, and the first protrusion and the second protrusion are respectively embedded in the first card slot and the second card slot.

4. The tool-free quick-install diagonal tie rod assembly according to claim 1, characterized in that: The horizontal part is slidably connected with a locking point of an inclined rod, and the suspension piece is provided with a second waist-shaped hole adapted to the locking point of the inclined rod, and the long axis of the second waist-shaped hole is arranged along the length direction of the suspension piece.

5. The tool-free quick-install diagonal tie rod assembly according to claim 4, characterized in that: The locking point of the inclined tie rod is an eccentric rivet.

6. The tool-free quick-install diagonal tie rod assembly according to claim 1, characterized in that: The corner connecting strip is composed of a plurality of stacked metal sheets.

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