DE102018112484B3 - Retaining shackle for holding a leaf spring - Google Patents

Abstract

The present disclosure relates to a support shackle (100) for holding a leaf spring end of a leaf spring of a wheel suspension in a vehicle having a body component, with a shackle support (101) for receiving the leaf spring end of the leaf spring, the shackle support (101) having a first side tab (105), a second side flap (107) and a base portion (109) connecting the first side flap (105) and the second side flap (107), the first side flap (105) and the second side flap (107) being angularly spaced from the base portion (107); 109), wherein in the first side flap (105) and the second side flap (107) each having a fastening opening (111) is formed, and wherein the fastening openings (111) aligned with each other and are enforceable by the fastening bolt, and a tubular sleeve body ( 103), which on the body component, in particular by means of a fastening bolt, BEFE is stigbar, wherein the tubular sleeve body (103) is integrally formed on the base portion (109); and wherein the support shackle (100) is integrally formed with the shackle support (101) and the tubular sleeve body (103).

Description

The present disclosure relates to a retainer shackle for holding a leaf spring, more particularly to a retainer shackle for holding a leaf spring end of a leaf spring of a suspension in a vehicle having a body member and a method of manufacturing a retainer shackle.

In conventional wheel suspensions of a vehicle leaf springs are used, which are designed to cushion forces acting on the suspension during the drive of the vehicle. In order to ensure an effective support of such a leaf spring with a body component of the vehicle, usually holding elements are used which connect the leaf spring to the body component. Corresponding holding elements must have sufficient stability in order to be able to absorb compressive stresses and / or tensile stresses acting on such holding elements.

In the EP 1 967 394 A1 is a spring-mounted suspension disclosed in which a leaf spring is hinged with a front spring eye fixed to a frame fixedly arranged bearing block.

In the EP 1 500 530 A1 discloses a sprung rigid axle suspension of a vehicle, wherein the axle body is attached to the bottom of a leaf spring.

In the publication DE 10 2015 117 349 A1 a fastening shackle for fastening a leaf spring to a vehicle body of a vehicle is disclosed.

In the publication US 2007/0 267 790 A1 a leaf spring assembly for a golf cart is disclosed.

In the publication US 3,030,101A a spring shackle for pivotally supporting one end of a spring of the vehicle housing is disclosed.

It is the object of the present disclosure to ensure an advantageous holding element for holding a leaf spring end of a leaf spring of a wheel suspension in a vehicle with a body component.

This object is solved by the features of the independent claims. Advantageous embodiments of the disclosure are the subject of the dependent claims, the description and the accompanying figures.

The present disclosure is based on the finding that the above object can be achieved by a mounting shackle, which can be adapted particularly advantageous with respect to the necessary width of the corresponding leaf spring, and which can also be produced with an effectively reduced weight. The bracket shackle is manufactured in large numbers from a one-piece extrusion profile, whereby the assembly costs and the assembly costs in the manufacture of the support shackle can be effectively reduced.

In a first aspect, the disclosure relates to a retainer shackle for holding a leaf spring end of a leaf spring of a suspension in a vehicle having a body member, with a shackle mount for receiving the leaf spring end of the leaf spring, the shackle retainer having a first side tab, a second side tab, and a base portion the first side flap and the second side flap connect with the first side flap and the second side flap angularly extending from the base portion, wherein a fastening aperture is formed in the first side flap and the second side flap, and wherein the fastening apertures are aligned and aligned by a fastening bolt are enforceable, and a tubular sleeve body, which is fastened to the body component, in particular by means of a fastening bolt, wherein the tubular sleeve body angef to the base portion is form, wherein the support shackle is formed integrally with the shackle holder and the tubular sleeve body, and wherein the shackle is made of a one-piece extrusion profile.

As a result, the technical advantage is achieved that acting on the bracket shackle tensile loads and / or pressure loads can be particularly effectively absorbed by the mounting shackle.

The tubular sleeve body of the support shackle thereby ensures an effective connection between the support shackle and the body component. In particular, a bearing such as e.g. an elastomeric bearing, are inserted into the tubular sleeve body to ensure an effectively mounted connection between the bracket shackle and the body component.

The shackle holder of the support shackle serves to hold the leaf spring end, for example by means of a fastening bolt. The particular existing fastening bolt passes through the aligned alignment openings of the side flaps.

To ensure effective receipt of tensile loads and / or compressive loads acting on the support shackle, the support shackle is integrally formed with the shackle support and the tubular sleeve body. Here, the tubular sleeve body is formed on the base portion of the shackle holder to ensure a stable one-piece connection between the shackle holder and the tubular sleeve body.

In an advantageous embodiment, the first side flap and the second side flap face each other.

In an advantageous embodiment, the holding shackle is integrally extruded with the shackle holder and the tubular sleeve body.

As a result, the technical advantage is achieved that a particularly stable mounting shackle can be obtained by the formation of the support shackle as a one-piece extrusion component, which can be advantageously produced in the context of an extrusion process. The one-piece bracket shackle is also particularly easy to manufacture.

In an advantageous embodiment, the base portion has a first surface extending between the first side flap and the second side flap, and the base portion has a second surface facing away from the first surface, the tubular sleeve body extending from the second surface ,

As a result, advantageously no connection between a bearing and the tubular sleeve body is required.

In an advantageous embodiment, the attachment openings are aligned along an alignment axis with each other, wherein the tubular sleeve body has a longitudinal axis which is parallel to the alignment axis.

As a result, the technical advantage is achieved that can be ensured by the parallel alignment of the mounting holes to the tubular sleeve body a particularly advantageous adapted to the space situation in the vehicle connection between the leaf spring and body component.

In an advantageous embodiment, the tubular sleeve body extends from the first side flap to the second side flap.

As a result, the technical advantage is achieved that a particularly stable connection between the tubular sleeve body and the arranged between the first and second side flap base portion of the shackle bracket can be ensured.

According to the invention, the side flaps each have a side width which decreases toward the tubular sleeve body, and the side flaps each have a side length which increases towards the base section.

As a result, the technical advantage is achieved that a particularly effective absorption of mechanical loads is ensured by the bracket shackle by the correspondingly shaped side flaps.

In this case, the respective side width of the side flap decreases, in particular, from a side flap end facing away from the tubular sleeve body to the tubular sleeve body. In this case, a first side width facing the respective side strap end is in this case, in particular, larger than a second side width facing the tubular sleeve body.

In this case, alternatively or additionally, the respective side length of the side flap, in particular from a side of the respective side flap facing away from the base section, increases towards the base section. In this case, a first side length facing away from the base portion is in particular smaller than a second side length facing the base portion.

In particular, the side flaps each have a constant or varying side thickness.

In an advantageous embodiment, the side flaps each have a side flap end, which faces away from the tubular sleeve body and is rounded, wherein the fastening openings are formed in the side flap ends.

This achieves the technical advantage that the fastening openings formed in the side tab ends ensure an effective connection to the body component.

In an advantageous embodiment, the side tab ends flush with the base portion or protrude the side tab ends beyond the base portion.

As a result, the technical advantage is achieved that the formation of the side flap ends can be flexibly adapted to the particular space situation.

In an advantageous embodiment, the tubular sleeve body is laterally by a limited first circumferential sleeve edge and a second circumferential sleeve edge, wherein the first side flap extends to the first circumferential sleeve edge and wherein the second side flap extends to the second circumferential sleeve edge.

As a result, the technical advantage is achieved that the side flaps additionally increase the rigidity of the Halterschäkels.

In an advantageous embodiment, the side flaps are each bounded by a side flap edge, which extends from the respective sleeve edge of the tubular sleeve body to a respective side flap end facing away from the tubular sleeve body.

As a result, the technical advantage is achieved that the respective side flap edge advantageously limits the area of the respective side flap.

In an advantageous embodiment, the respective side flap edge runs curved, and the respective side flap edge extends in particular convexly and / or concavely at least in sections.

As a result, the technical advantage is achieved that the shape of the respective side tab edge bounded by the side tab edge can be effectively adapted to the forces acting on the side tab due to the at least partially convex and / or concave curvature of the respective side tab edge.

In an advantageous embodiment, the respective side flap edge has a first side flap edge section extending from the respective sleeve edge, which runs concavely curved, and the respective side flap edge has a second side flap edge section extending from the respective side flap end, which runs convexly curved, wherein the first and second Side tab edge portion in particular are interconnected.

As a result, the technical advantage is achieved that a particularly stable shape of the respective side flaps can be ensured. In particular, the respective side flap edge can only have a first concavely curved side flap edge section extending from the respective sleeve edge. In particular, the respective side flap edge may only have a second convexly curved side flap edge section extending from the respective side flap end.

However, the respective side flap edge can also in particular have a first concavely curved side flap edge section extending from the respective sleeve edge and can also have a second convexly curved side flap edge section extending from the respective side flap end. Here, the first and second side flap edge portion are in particular connected to each other, wherein the respective side flaps in particular have an ear shape.

In an advantageous embodiment, the holding shackle with the shackle holder and the tubular sleeve body is integrally formed from a metal or a metal alloy, wherein the metal or metal alloy comprises in particular steel or aluminum.

As a result, the technical advantage is achieved that an integrally made of metal, especially steel or aluminum, molded shackle is particularly stable, and also advantageous to produce. In particular, the Halterschäkels is formed of aluminum or an aluminum alloy.

In an advantageous embodiment, a recess for receiving the leaf spring end is formed between the first side flap and the second side flap in the base section. The recess is for example rounded, rectangular or trapezoidal. This ensures that the leaf spring end can be pushed efficiently between the two side flaps in the recess.

In an advantageous embodiment, the leaf spring end can be inserted into the recess on the face side.

In a second aspect, the disclosure relates to a method of making a retainer shackle comprising the steps of extruding a unitary extrusion profile having a plate and a tubular body formed on the plate, cutting a plurality of retainer shackle parts from the integral extrusion profile to include a retainer shackle member each providing a tubular sleeve body which is cut out of the tubular body, and two lateral ends between which a base portion is formed, and bending the lateral ends toward one another to obtain a first side flap and a second side flap extending angularly from the base portion extend. The tubular sleeve body formed by the cutting of the tubular body when cutting the plurality of Halterschäkelteilen.

Thereby, the technical advantage is achieved that the extruded one-piece extrusion profile the Manufacturing a plurality of support shackles allows, so that an efficient and cost-effective manufacturing process can be ensured. By cutting out the Halterschäkelteile from the one-piece extrusion profile, the plate is severed such that arise from the tubular body, the tubular sleeve body. By subsequently bending the side ends of the respective bracket shackle member, a bracket shackle may be obtained having a first side tab and a second side tab extending angularly from the base portion, the base portion being disposed between the first and second side tabs.

In an advantageous embodiment, the extrusion profile after extrusion has a plate with the tubular portion. From this extrusion profile, the support elements are then cut or punched. In particular, the extrusion profile does not consist of a plurality of tubular sleeves, but of a single continuous profile, which is brought into the holder form by the cutting or stamping.

In an advantageous embodiment, retaining shackle parts of the same or different width and / or length can be cut out in the step of cutting.

This achieves the technical advantage that the retaining shackles formed from the cut-out retaining shackle parts can be designed to have different lengths or different widths, depending on the dimensions of the leaf spring.

• 1 einen Halterungsschäkel zum Halten eines Blattfederendes einer Blattfeder einer Radaufhängung in einem Fahrzeug mit einem Karosseriebauteil;
• 2 ein einstückiges Extrusionsprofil;
• 3 eine Mehrzahl von aus einem einstückigen Extrusionsprofil ausgeschnittenen Halterungsschäkelteilen; und
• 4 eine schematische Darstellung eines Verfahrens zum Herstellen eines Halterungsschäkels.

Further embodiments will be explained with reference to the accompanying figures. Show it:

• 1 a bracket shackle for holding a leaf spring end of a leaf spring of a suspension in a vehicle with a body component;
• 2 a one-piece extrusion profile;
• 3 a plurality of support shackle members cut out of a one-piece extrusion profile; and
• 4 a schematic representation of a method for producing a Halterschäkels.

1 shows a mounting shackle for holding a leaf spring end of a leaf spring of a suspension in a vehicle with a body component. For mechanically connecting leaf springs of a suspension in a vehicle with a body component of the vehicle, a mounting shackle 100 according to the present disclosure. The bracket shackle 100 is formed on the mounting shackle 100 effectively absorb acting compressive loads and / or tensile loads.

The bracket shackle 100 is advantageously mountable in a vehicle, has a reduced weight, and can be easily and inexpensively manufactured. In addition, the bracket shackle 100 be made variable with respect to the necessary width of the leaf spring to be installed in the vehicle.

The bracket shackle 100 is formed of metal or a metal alloy, wherein the metal or metal alloy comprises in particular steel or aluminum.

The bracket shackle 100 is formed in particular from an extrusion component, which can be produced in the context of an extrusion process.

The in 1 shown holding shackles 100 has a tubular sleeve body 103 which can be fastened to the body component by means of a fastening bolt, and has a shackle holder 101 for holding a leaf spring end of a leaf spring. The bracket shackle 100 is here with the shackle holder 101 and the tubular sleeve body 103 molded in one piece, in particular extruded in one piece.

The shackle holder 101 has a first side flap 105 , a second side flap 107 and a base section 109 on which the first side flap 105 and the second side flap 107 combines. The first side flap 105 and the second side flap 107 extend at an angle from the base portion 109 and are particularly facing each other.

The tubular sleeve body 103 is here at the base section 109 the shackle holder 101 formed. The tubular sleeve body 103 extends from the first side flap 105 to the second side flap 107 ,

In the first and second side flap 105 . 107 each is a mounting hole 111 shaped. The mounting holes 111 are aligned in alignment with each other and are separated by an in 1 Not shown fastening bolts enforceable.

The mounting holes 111 are along an escape axis 113 aligned with each other, wherein the tubular sleeve body 103 a longitudinal axis 115 which is parallel to the axis of flight 113 runs.

The base section 109 the shackle holder 101 has a first surface 117 - 1 on which is between the first side flap 105 and the second side flap 107 extends. The base section 109 has a second surface 117 - 2 on which of the first surface 117 - 1 facing away, wherein the tubular sleeve body 103 from the second surface 117 - 2 extends. In the 1 is the second surface 117 - 2 shown for illustration technical reasons only schematically.

The side flaps 105 . 107 each have a side tab end 119 on which the tubular sleeve body 103 turned away and rounded, with the mounting holes 111 in the side flap ends 119 are formed.

This will close the side tab ends 119 especially with the base section 109 flush or protrude the side tab ends 119 in particular via the base section 109 out.

The side flaps 105 . 107 in particular each have a page width 121 on which to the tubular sleeve body 103 decreases. This takes the page width 121 the respective side flap 105 . 107 in particular from the respective side tab end 119 to the tubular sleeve body 103 down. Like in the 1 is shown, one is the side tab end 119 facing first page width 121 - 1 larger than the tubular sleeve body 103 facing second side width 121 -2.

The side flaps 105 . 107 in particular each have a side length 123 on which to the base section 109 increases. This takes in particular the side length 123 the respective side flap 105 . 107 from one of the base section 109 opposite side of the respective side flap 105 . 107 to the base section 109 towards. Like in the 1 is one, the base section 109 opposite first side length 123 - 1 less than one the base section 109 facing second side length 123 - 2 ,

The respective side flaps 105 . 107 in particular each have a side thickness 125 which is in particular constant or varies.

Between the two side flaps 105 . 107 is in the base section 109 a recess 126 shaped to receive the leaf spring end. The recess 126 is for example rounded, rectangular or trapezoidal. This ensures that the leaf spring end efficiently between the two side flaps 105 . 107 can be pushed into the recess.

The tubular sleeve body 103 is also laterally by a first circumferential sleeve edge 127 and a second circumferential sleeve edge 129 limited, with the first side flap 105 in particular up to the first circumferential sleeve edge 127 extends and wherein the second side flap 107 in particular up to the second circumferential sleeve edge 129 extends.

The side flaps 105 . 107 are each by a side tab edge 131 limited, which in particular of the respective sleeve edge 127 . 129 of the tubular sleeve body 103 to the respective side tab end 119 extends.

The respective side flap edge 131 is curved, for example, at least partially convex and / or concave curved.

Here, the respective side tab edge 131 in particular one of the respective sleeve edge 127 . 129 extending first side tab edge portion 133 - 1 on, which runs concavely curved, and has the respective side flap edge 131 in particular one from the respective side tab end 119 extending second side tab edge portion 133 - 2 which is convexly curved, the first and second side tab edge portions 133 - 1 . 133 - 2 in particular connected to each other.

2 shows a one-piece extrusion profile. From the one-piece extrusion profile 135 are the according to the 1 described shackle bracket 100 manufactured. The one-piece extrusion profile 135 is formed of metal or a metal alloy, wherein the metal or metal alloy comprises in particular steel or aluminum.

The one-piece extrusion profile 135 is especially as an extrusion profile 135 formed, which is produced in an extrusion process.

The one-piece extrusion profile 135 has a plate 137 and a tubular body 136 on, with the tubular body 136 at the plate 137 is shaped.

3 shows a plurality of retaining shackle parts cut from a one-piece extrusion profile. In the in 3 represented supervision on the plate 137 the one-piece extrusion profile 135 is the one to the plate 137 molded tubular tubular body 136 shown only schematically.

Like in the 3 is shown, a plurality of Halterschäkelteilen 139 from the one-piece extrusion profile 135 cut. Each bracket shackle part 139 has a tubular sleeve body 103 , a first footer 141 , a second footer 143 and a base section 109 on, with the base section 109 between the footers 141 . 143 is shaped. In the base section 109 is in particular a respective recess 126 shaped to receive the leaf spring end.

By a in 3 unillustrated bending of the footers 141 . 143 the cut support shackle parts 139 towards each other, can a plurality of attitude shackles 100 according to the in the 1 shown embodiment can be obtained. Here, the obtained shackles have 100 in particular side flaps facing each other 105 . 107 on which the in 3 shown page ends 141 . 143 the cut support shackle parts 139 correspond.

4 shows a schematic representation of a method for producing a Halterschäkels.

The procedure 200 for making a support shackle 100 includes the following process steps:

extrude 201 a one-piece extrusion profile 135 with a plate 137 and a tubular body 136 , which at the plate 137 is shaped.

cutting out 203 a plurality of Halterschäkelteilen 139 from the one-piece extrusion profile 135 to a bracket shackle part 139 each with a tubular sleeve body 103 which is from the tubular body 136 is cut out, and two footers 141 . 143 , between each of which a base section 109 is shaped to provide.

bend 205 the footer 141 . 143 towards each other, to a first side flap 105 and a second side flap 107 to obtain which is angular from the base section 109 extend.

LIST OF REFERENCE NUMBERS

100

holder shackle

101

shackle bracket

103

Tubular sleeve body

105

First side flap

107

Second side flap

109

base section

111

mounting holes

113

aligned axis

115

longitudinal axis

117-1

First surface of the base section

117-2

Second surface of the base section

119

Page tab end

121

page width

121-1

First page width

121-2

Second page width

123

page length

123-1

First page length

123-2

Second side length

125

side thickness

126

recess

127

First sleeve edge

129

Second sleeve edge

131

Side flap edge

133-1

First side flap edge section

133-2

Second side tab edge portion

135

One-piece extrusion profile

136

pipe body

137

plate

139

Holder shackle part

141

First page end

143

Second end of page

200

Method for producing a support shackle

201

Process step: Extruding a one-piece extrusion profile

203

Process step: cutting of retaining shackle parts

205

Process step: Bending of side ends towards each other

Claims (15)

A mounting shackle (100) for holding a leaf spring end of a leaf spring of a suspension in a vehicle having a body member, comprising: a shackle bracket (101) for receiving the leaf spring end of the leaf spring, the shackle bracket (101) having a first side flap (105), a second side flap (101); 107) and a base portion (109) connecting the first side flap (105) and the second side flap (107), the first side flap (105) and the second side flap (107) extending angularly from the base portion (109). wherein in the first side flap (105) and the second side flap (107) each one Attachment (111) is formed, and wherein the attachment openings (111) aligned with each other and are enforceable by a fastening bolt; and a tubular sleeve body (103) attachable to the body panel, the tubular sleeve body (103) being integrally formed with the base portion (109); wherein the support shackle (100) is integrally formed with the shackle support (101) and the tubular sheath body (103), the side flaps (105, 107) each having a side width (121, 121-1, 121-2) which is tubular Sleeve body (103) decreases, and wherein the side flaps (105, 107) each have a side length (123, 123-1, 123-2) which increases towards the base portion (109), and wherein the support shackle (100) consists of a one-piece extrusion profile is made. Retaining shackle (100) after Claim 1 wherein the support shackle (100) is integrally extruded with the shackle support (101) and the tubular sheath body (103). Retaining shackle (100) after Claim 1 or 2 wherein the base portion (109) has a first surface (117-1) extending between the first side flap (105) and the second side flap (107), and wherein the base portion (109) has a second surface (117-2). which faces away from the first surface (117-1), the tubular sleeve body (103) extending from the second surface (117-2). Retaining shackle (100) according to one of the preceding claims, wherein the fastening openings (111) along an alignment axis (113) are aligned with each other, wherein the tubular sleeve body (103) has a longitudinal axis (115) which is parallel to the alignment axis (113). A retainer shackle (100) according to any one of the preceding claims, wherein the tubular sleeve body (103) extends from the first side flap (105) to the second side flap (107). A mounting shackle (100) according to any one of the preceding claims, wherein the side flaps (105, 107) each have a side flap end (119) facing away from the tubular sleeve body (103) and rounded, and wherein the attachment openings (111) in the side flap ends (119 ) are formed. Retaining shackle (100) after Claim 6 wherein the side flap ends (119) are flush with the base section (109) or wherein the side flap ends (119) protrude beyond the base section (109). A retainer shackle (100) according to any one of the preceding claims, wherein the tubular sleeve body (103) is bounded laterally by a first circumferential sleeve edge (127) and a second circumferential sleeve edge (129), the first side flap (105) extending all the way to the first Sleeve edge (127) extends and wherein the second side flap (107) extends to the second circumferential sleeve edge (129). Retaining shackle (100) after Claim 8 wherein the side flaps (105, 107) are each bounded by a side flap edge (131) which extends from the respective sleeve edge (127, 129) of the tubular sleeve body (103) to a respective side tab end (119) facing away from the tubular sleeve body (103). extends. Retaining shackle (100) after Claim 9 , wherein the respective side flap edge (131) is curved. Retaining shackle (100) after Claim 10 in that the respective side flap edge (131) has a first side flap edge section (133-1) extending from the respective sleeve edge (127, 129), which runs concavely curved, and wherein the respective side flap edge (131) extends from the respective side flap end (119 ) extending second side tab edge portion (133-2) which extends convexly curved. A mounting shackle (100) according to any one of the preceding claims which is integrally formed with the shackle support (101) and the tubular sheath body (103) from a metal or metal alloy. A retainer shackle (100) according to any one of the preceding claims, wherein a recess (126) for receiving the leaf spring end is formed between the first side flap (105) and the second side flap (107) in the base portion (109). A method (200) of manufacturing a support shackle (100) comprising the steps of: extruding (201) a one-piece extrusion profile (135) having a plate (137) and a tubular body (136) formed on the plate (137); Cutting (203) a plurality of support shackle parts (139) from the one-piece extrusion profile (135) to form a support shackle part (139) each having a tubular sleeve body (103) cut out of the tubular body (136) and two side ends (141, 141); 143) between each of which a base portion (109) is formed; and Bending (205) the side ends (141, 143) towards one another to obtain a first side flap (105) and a second side flap (107) which extend at an angle from the base portion (109), the side flaps (105, 107) each having a side width (121, 121-1, 121-2) which decreases toward the tubular sleeve body (103), and wherein the side flaps (105, 107) each have a side length (123, 123-1, 123-2) which increases towards the base portion (109). Method (200) according to Claim 14 wherein in the step of cutting (203) support shackle parts (139) of the same or different width and / or length can be cut out.

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