JP2001280312A - connector - Google Patents

Abstract

A connector (14) for at least two components (10, 12), in which the connector has an expandable fixing section (24) and a mounting section (22). The section has a hole 39 extending transversely to the contact surface 35, in which the expanding member 34 is fixed. [Effect] The connector can be easily assembled and can withstand a high mechanical load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a connector for at least two components, wherein the connector has an expandable fixed section and a mounting section, wherein the mounting section has a first at least one configuration. The part is adapted to be mounted and the fixing section is arranged in the assembly groove of the second component part.

[0002]

BACKGROUND OF THE INVENTION Utility Model Publication No. 890 of the Federal Republic of Germany
A connector of the above-mentioned type, known from 3813 U1, is used for coupling between two components. The connector has a mounting section for mounting the first at least one component to the mounting section. The connector further has an expandable claw-shaped securing section on either side of the mounting section, such that the securing section is located in the assembly groove of the second component.

At the time of assembly, a connector is inserted into the assembly groove and contacts the groove bottom of the assembly groove. In this case, the mounting section may not coincide with the central longitudinal plane of the assembly groove. Thus, the coupling between both components is incorrect. Particularly, in the case of an extruded aluminum molded rod, there is an error in the height of the assembly groove within a range of a few tenths of a millimeter. However, because the height of the connector is accurate, there can be undesired differences in both heights. For the fixing of the connector, the fixing section of the connector is expanded by means of a special wedge-shaped tool and engaged below the undercut of the assembly groove. If the special tool is not installed correctly, the connector will no longer be positioned correctly. Furthermore, after assembly, the fixing section may be subject to strong mechanical vibration loads and become loose. Furthermore, the connector requires a large space requirement due to the claw-shaped mounting section.

[0004]

Advantages of the connector according to the invention having the features of claim 1 are that the connector is mounted without special tools and is reliably retained even under strong mechanical vibration loads. Advantageously, a hole is provided which extends in a conical shape, in which a sphere as a spreading element is arranged and is well guided and securely fixed.

The connectors are precisely positioned on the components by the contact surfaces, so that the components are precisely aligned with one another.

[0006]

FIG. 1 shows a first component 10 and a second component 12, both of which are T
First connector (joint piece or piece)
14 are connected to each other. Components 10, 1
Numeral 2 denotes a forming rod formed by an aluminum extrusion molding method in the illustrated embodiment, and both forming rods are arranged at right angles to each other. The first component 10 has one external surface, in the embodiment shown the end surface 15
4 attached to the side surface 16 of the second component 12. The components 10, 12 have an assembly groove 18 along the side surface 16, which extends in the center of the side surface 16 and, in the embodiment shown, has an undercut (FIG. 3). Further, the components 10 and 12 correspond to the component 1
It has a central hole 20 extending in the longitudinal direction of 0,12. The assembly groove 18 of the first component 10 and the hole 20 of the second component 12 may be omitted.

The generally T-shaped connector 14 has an expandable securing section 24 and a mounting section 22. A mounting section 22 is mounted on the first component 10, and a fixing section 24 is arranged in the assembly groove 18 of the second component 12 which is located towards the first component 10.

The mounting section 22 is formed in the illustrated embodiment in the form of a sleeve and is provided with a through-hole 26 so that it can extend transversely to the assembly groove 18 of the second component 12 of the first component 10. In other words, it is arranged in a hole 20 extending in a direction crossing the assembly groove 18. Instead of a circular cross-section, the mounting section 22 may have another cross-sectional shape adapted to the cross-section of the bore 20 of the first component. An end region 28 of the mounting section 22 is provided with a slit 30 extending from an end face 32 of the mounting section 22, the slit dividing the end region 28 into two substantially symmetrical halves. The through-hole 26 of the mounting section 22 is advantageously formed in an end region 28 in a conical shape, the diameter of the hole decreasing towards the end face 32 of the mounting section 22. The through-hole 26 is formed on the surface 33 of the connector 14 opposite to the end surface 32.
It is spread stepwise on the side of.

A sphere 34 as an expanding member is disposed in the end region 28 in the through hole 26. The sphere 34 has the through hole 26
Of the end region 28, so that the mounting section 22 of the end region 28 is widened by the slit 30 and clamped in the bore 20. Since the sphere 34 remains in the through hole 26, the first
The retention of the mounting section 22 in the component 10 is very good. That is, the end region 28 divided into two halves by the slit 30 is securely locked by the sphere 34 even when a mechanical vibration load is applied. Sphere 34
Alternatively, other suitable expanding members may be used, for example, cylindrical or conical pins. If the hole 20 or the through-hole has a different cross-section than a circle, the pin or the expanding element may also be adapted to the cross-section of the hole or the through-hole. Further, it is conceivable to provide a conical female screw in the through hole 26, and a conical or cylindrical screw bolt is screwed into the female screw.

A shoulder surface is formed on the connector 14 around the sleeve-shaped portion of the mounting section 22 as a contact surface 35. The contact surface 35 is the end surface 1 of the first component 10.
Serving for contact of connector 14 to 5. Thereby, the connector 1 in the first component 10 is
4 is accurately positioned. Furthermore, in the contact surface 35 a recess 36 surrounding the sleeve-shaped mounting section 22
And the recess serves as a litter chamber (dirt or litter receptacle) when the mounting section 22 is inserted.
The recess 36 also prevents the effect of the burr of the hole 20 in the end face 15 of the first component 10.

A fixed section 24 of the connector 14 is formed symmetrically, extending transversely to the mounting section 22 and, in the embodiment shown, perpendicular to the mounting section 22 on both sides of the mounting section 22. I have. The connector 14 is arranged in the assembly groove 18 of the second component 12 with the fixing section 24. For this purpose, the predetermined width of the fixing section 24 as seen in FIG. 2 has a slight play at the groove neck 37 (FIG. 3) of the assembly groove 18 to facilitate the insertion of the fixing section 24.

Following the contact surface 35, the fixing section 24 is formed with a slightly inclined surface 38. From the surface 38, a consistent hole 39 extends through the fixed section 24. The holes 39 are arranged on both sides of the mounting section, extend transversely to the contact surface 35 and
Slightly tilted with respect to the vertical axis of FIG. in this case,
The slope of the hole is chosen such that the hole is accessible from the assembly groove 18 of the first component 10. Thereby, the holes 39 form an acute angle of approximately 30 ° with each other, so that the angle between the through hole 26 and each hole 39 is approximately 15 °.

In each of the two holes 39 a fixable expanding member in the form of a sphere 34 is provided. Fixed section 24
Hole 39 is formed at least partially in a conical shape so that the diameter of the hole increases with increasing distance from the contact surface 35 or toward the bottom of the assembly groove 18. is decreasing. Furthermore, an end region 40 of the fixed section 24 remote from the mounting section is provided with a slit 42, which is perpendicular to the contact surface 35 or in the longitudinal center plane of the assembly groove 18 of the second component 12. May be arranged in parallel to. The opening of the hole 39 in the surface 38 has a large opening angle to facilitate the insertion of the sphere 34. Instead of the sphere 34, another suitable expanding element can be used, for example a cylindrical or conical pin. If the hole has a different cross-section than circular, the pin or the expanding element may also be adapted to the cross-section of the hole. For example, the pin or the expanding member may be a pyramid or a prism. It is also conceivable to provide a conical female screw in the hole 39, and a conical or cylindrical screw bolt is screwed into the female screw.

The components 10, 1 are connected by using the connector 14.
In order to assemble the connector 2, the connector 14 is firstly moved from the end face 15 of the first component
The contact surface 35 of the connector 14 is brought into contact with the end surface 15 of the first component 10 by being pushed into the hole 20 of the component 10. This achieves accurate positioning between the first component 10 and the connector 14.
If the mounting section 22 has a slight play in the bore 20, the assembly is easy.

After aligning the connector 14 and the first component 10 with each other, a sphere 34 is inserted from the face 33 of the connector 14 and the end face 32 of the end face area 28 of the mounting section 22 is inserted using, for example, a pin and a hammer. It is driven towards. This ensures that the sphere 34 is guided into the through hole 26. The two halves, which are formed by the slits 30 in the end regions 28, are open to each other and are clamped in the holes 20. Therefore, connector 1
4 is securely held on the first component 10. Sphere 34
Are securely held in the through holes 26.

The second component 12 is then mounted such that the fixed section 24 of the connector 14 is located in an assembly groove 18 of the component directed toward the first component 10. In this case, the side surface 16 of the second component 12 comes into contact with the end face 15 of the first component 10 with a light pressure. This ensures that the two components 10, 12 are exactly aligned with one another. The sphere 34 is then inserted into the hole 39 of the fixed section 24 and driven into the surface 33 of the connector 14 using, for example, a pin and a hammer, and is guided well into the hole 39. The two halves, which are formed by the slits 42 of the fixing section 24, are open to each other and are fastened to the undercut of the assembly groove 18. This ensures that the connector 14 is held by the second component 12 and thus that the first component 10 is securely held by the second component 12. Advantageously, the dimensions of the bore 39 and of the sphere 34 are defined with respect to each other so as to ensure that the fixing section 24 engages below the groove neck 37 of the assembly groove 18 after assembly. The holding state of the connector in the assembly groove 18 having the undercut portion is better (reliable) than the holding state of the connector in the assembly groove having no undercut portion.

Since the ball 34 is fixedly held in the through hole 26 or the hole 29, the connection is reliably ensured against strong mechanical vibration. Contact surface 35 of connector 14
This allows precise alignment of the connector 14 with the first component 10 and the second component 12.

A second connector 50 is shown in FIGS. The connector 50 is used for coupling between two components, in which case only the second component 52 is shown. The illustrated second component 52 is, in the illustrated embodiment, a formed rod formed by an aluminum extrusion process. The component 52 is provided on the side surface 16 with the assembly groove 18.
The assembly groove extends in the center of the side surface 16,
It has an undercut. Further component 52
Has a central hole 20 extending in the longitudinal direction of the component 52. However, the holes 20 in the component 52 may be omitted.

The connector 50 has a mounting section 54 and a fixing section 56, the mounting section and the fixing section being separated from each other and arranged in the assembly groove 18 of the component 52. The mounting section 54 and the fixed section 56 are connected to one another by a preferably plate-shaped section 58.

A contact surface 60 is formed in the plate-like section 58 of the connector 50 and serves to contact the side surface 16 along the assembly groove 18 of the component 52. That is, the connector 50 has a support surface 60 for contacting the outer surface of one of the components to be joined, thereby improving the positioning between the components.

The width of the mounting section 54 is slightly smaller than the width of the groove neck 37 of the assembly groove 18. The mounting section 54 has a screw hole 62, which extends beside the fixing section 56. The first component is mounted in the screw hole 62 using a member in the form of a screw (not shown) and is crimped to the section 58, for example.

The fixing section 56 is provided with the assembly groove 18 of the component 52.
It is designed to be placed inside. The connector 50, like the connector 14, has at least one hole 39 and a slit 42 extending transversely to the contact surface 60. A sphere 34 as an expanding member can be fixed in the hole 39. In order to widen the fixing section 56, the hole 39 is formed at least partially in a conical shape, the diameter of the hole increasing with increasing distance from the contact surface 60 or at the bottom of the assembly groove 18. It is decreasing toward. Furthermore, the fixing section 56 is provided with a slit 42, which is substantially perpendicular to the contact surface 60 and in the assembly groove 1 of the component 52.
8 are arranged in parallel to the vertical center plane. Sphere 3
The opening of the hole 39 has a large opening angle to facilitate insertion of the hole 4. Instead of the sphere 34, another suitable expansion element may be used, for example a cylindrical or conical pin. If the bore has a different cross-section than a circle, the pin or the expanding element may also be adapted to the cross-section of the bore. It is also conceivable to provide a conical female screw in the hole 39, and a conical or cylindrical screw bolt is screwed into the female screw.

For assembly, the mounting section 54 and the fixing section 56 of the connector 50 are inserted into the assembly groove 18 of the component 52 and the contact surface 60 abuts against the side face 16. This achieves accurate positioning of the connector 50 in the component 52. Next, the sphere 34
Is inserted into the hole 39 of the fixed section 56 and is driven in with a pin-like tool until the fixed section 56 is sufficiently expanded by the sphere 34. The dimensions of the bore 39 and of the sphere 34 are advantageously such that the locking section 56 engages behind or below the groove neck 37 of the assembly groove 18.
By engaging the fixing section 56 behind or below the groove neck 37 of the assembly groove 18, the connector 50 is securely held. The sphere 34 is firmly fixed in the hole 39, so that the connection between the connector and the component is sufficiently ensured against mechanical vibrations. Then another component is screwed into the screw hole 62.

The present invention is not limited to the illustrated connectors 14,50. The connector may be formed, for example, as an angle piece. The angle piece has two contact surfaces which are brought into contact with the component to be joined.
The contact surface is provided with one or two expandable fixing sections, the fixing sections being arranged in one or both component assembly grooves. The fixing section likewise has a bore extending transversely to the contact surface, in which the lockable expansion element is arranged.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of two components joined by a first connector.

FIG. 2 is a plan view of the connector of FIG.

FIG. 3 is an end view of a component provided with a second connector.

FIG. 4 is a bottom view of the connector of FIG. 4;

FIG. 5 is a sectional view of the connector of FIG. 4;

[Explanation of symbols]

10,12 components, 14 connectors, 1
5 end face, 16 side face, 18 assembly groove, 20
Holes, 22 mounting sections, 24 fixed sections,
26 through-hole, 28 end area, 30 slit, 32 end face, 33 face, 34 sphere,
35 contact surface, 36 recess, 37 groove neck,
38 faces, 39 holes, 40 end areas, 4
2 slits, 50 connectors, 54 mounting sections, 56 fixed sections, 58 plate-shaped sections, 60 contact surfaces

Continued on the front page (72) Inventor Olaf Klemt Germany Mark Groningen Ludwig-Heid-Strasse 36

Claims (10)

[Claims] 1. At least two components (10, 1)
2,52) for the connector (14,50);
The connector has an expandable securing section (24, 56) and a mounting section (22, 54), wherein the first at least one component (10) is mounted on the mounting section; In the type in which the fixing section is arranged in the assembly groove (18) of the second component (12, 52), the fixing section (24, 5)
6) has at least one hole (39), wherein at least one expanding member (34) which can be fixed in the at least one hole (39) is arranged. 2. The at least one hole (39) is at least partially formed in a conical shape, the diameter of the hole preferably being the contact surface (35, 6) of the connector (14, 50).
2. The connector according to claim 1, wherein the at least one expanding member (34) decreases with increasing distance from 0), and is preferably a sphere. 3. The assembly groove (18) has an undercut and the dimensions of the hole (39) and the expanding member (34) define the fixed section (24, 56) with the groove neck of the assembly groove (18). Department (3
7. The method according to claim 1, wherein the lower side is engaged with the lower side.
Or the connector according to 2. 4. The connector comprises one component (10,5).
0) for contacting the outer surface (15, 16).
4. The connector according to claim 1, wherein the connector has a hole, and the hole extends laterally with respect to the contact surface. 5. The contact surface (60) having a second component (5).
2) is designed to contact the side surface (16) along the assembly groove (18), in which case a plate-like section (58) is advantageously provided with a mounting section (54) and a fixing section (5).
The connector according to any one of claims 1 to 4, wherein the connector is connected to (6). 6. The mounting section (54) has a screw hole (62).
4. The connector according to claim 1, wherein the screw holes extend laterally of the fixing section (56). 7. The first component (1) having a contact surface (35).
5. The connector according to claim 1, wherein the connector is configured to contact an outer surface of the first component. 8. The mounting section (22) is formed in the shape of a sleeve and has a through hole (26) so as to be arranged in the hole (20) of the first component (10). The hole in the first component extends laterally with respect to the assembly groove (18) in the second component (12) and a slit (28) in the end region (28) of the mounting section (22). 30) are provided, and the through holes (2) of the mounting section (22) are provided.
6) is preferably conically shaped in the end region (28), the bore diameter decreasing towards the end surface (32), with a shoulder provided around the mounting section (22). 8. A connector according to claim 7, wherein the shoulder forms a contact surface (35). 9. The fixed section (24) includes a mounting section (2).
9. Connector according to claim 8, comprising two holes (39) arranged on both sides of 2). 10. The expandable fixing section (24, 56) has at least one slit (42) which is substantially perpendicular to the contact surface (35, 60) and a second one. 10. The connector according to claim 1, wherein the connector is arranged parallel to a longitudinal center plane of the assembly groove of the component.