DE102007010138A1 - Suspension hook for hanging diverse objects has rotation axis essentially above accommodation opening with hook suspended and locking element formed to transfer to closing position under its own weight with hook suspended - Google Patents

Abstract

The suspension hook (10) has a base body (20) and a locking element (30). The base body has an opening that can be closed by the locking element, which is rotatable about an axis of rotation (40). The base body and the hook opening enclose an accommodation opening (50). The rotation axis is essentially above the accommodation opening with the hook suspended and the locking element is formed so that it transfers to the closing position under its own weight when the hook is suspended.

Description

The The invention relates to a suspension hook according to the Preamble of claim 1.

Known are hooks that are used to various objects hang. A very simply trained such Hanging hook is, for example, on a hanger arranged. Such suspension hooks can either be arranged directly on a device or have a fastener on, on which various devices or other aufhängende Items can be arranged. such Suspension hooks usually have a hook body in which a hook opening is arranged, over which the hook base body on a fastening device, For example, an eye, a rod, a rope or the like can be hooked. The hook body and the hook opening enclose a receiving opening, which is penetrated by the fastening device after hooking.

In many applications require it for security reasons that the hook opening via a blocking element in a closing position is closable, which accidental unhooking during loading reliable prevented.

A known embodiment of such a blocking element is on a Snap hook arranged at which the hook opening can be closed by a blocking element, which is a Rotary axis pivotally mounted on the hook body is. The locking element is spring loaded to without external Application to hold the locking element in the closed position. To attach the suspension hook to the fastening device or to be able to unhook, the locking element against the spring force be moved from the closed position to the fastening device enter or exit through the hook opening can.

Instead of a spring-loaded locking element, the blocking element also be stored by means of a film hinge. This movie hinge should simultaneously act as a return spring, but where This film hinge often after a few operations wear and tear has and the hook opening no longer reliable closes.

spring loaded Locking elements are complex to produce and generally contain always the risk that the spring element wears out or even breaks, so no reliable closure the hook opening is ensured.

While hanging hooks are arranged in the hanging position above the object to be suspended and attack on a fastening device, hooks are still known which hang vertically down and on which, for example, by means of suspension hooks or other suspension loads can be hung. In particular, load hooks are used in crane trusses. Such a load hook shows, for example, the AT 356 979 in which the hook opening is closed by a rigidly fixed closing piece such that the closing piece forms an insertion gap with a hook end. Although this is so narrow that chain links to be hooked can only be inserted when they are aligned at a certain angle to the insertion gap, so that an accidental pushing out through the insertion gap is prevented. However, in this case, the insertion gap is specially adapted to the chain links to be hooked and therefore the load hook can not be used flexibly.

The DE 1 896 668 discloses a U-shaped load hook with a locking element in the form of a duckbill, which automatically closes the hook opening with suspended load in the U-shaped hook by its weight force. However, such a load hook is not to be used as a suspension hook.

The The object of the invention is therefore a suspension hook to provide, which is easy to manufacture and use is and a reliable closure of the hook opening guaranteed.

The The object of the invention is achieved by a suspension hook with the features of claim 1.

advantageous Embodiments and developments of the invention are specified in the subclaims.

While in conventional snap hooks, the axis of rotation of the locking element is arranged on the hook body substantially adjacent to the hook opening and thus hanging hook in the lower region of the receiving opening, the invention is based on the idea of arranging the axis of rotation in hanging suspension hook substantially above the receiving opening and the Locking element form and arrange in such a way that it can be transferred by hanging its own weight force in the closed position in hanging suspension hook. Due to the own weight of the blocking element, the blocking element is pivoted at hanging suspension hook about the axis of rotation such that the center of gravity of the blocking element lies below the Drehach se and has a shape such that the Hakenö Opening the hook body is closed. As a result, an automatically closing hook for suspending or attaching objects is provided, which manages without a spring element and is therefore not subject to wear. The risk of functional impairment is thus excluded. In addition, the suspension hook can be easily operated, since when hanging the hook, the blocking element automatically closes without further action by the user. The blocking element is in particular designed such that the center of gravity of the blocking element is laterally offset from a vertical axis through the axis of rotation. This arrangement of the center of gravity constantly causes a torque in the closing direction of the locking element, so that the locking element ensures reliable closure of the suspension hook even in dynamic disturbances of the suspension hook in the vertical or oblique direction.

Of the Hook body preferably has the shape of a C, between the ends of which the hook opening is arranged, wherein at one end of the C, a mounting arm is arranged, which at hanging hanging hook pointing down. At this Mounting arm can either be hung Items to be attached directly or via a Fastening device replaceable on the suspension hook to be ordered.

at a particularly preferred embodiment of the invention the blocking element has approximately the shape of a C between which Ends a blocking element opening is arranged, wherein the blocking element in the closed position so to the hook body is arranged, that a portion of the blocking element, the hook opening and a portion of the hook base body the blocking element opening closes. As a result, form the blocking element and the hook body a closed eyelet, both the hook body as well as the blocking element, the receiving opening in each case partially enclose. Preferably, on the hook base body and / or on the Blocking element arranged at least one latching lug, which in the Closed position of the locking element in a corresponding recess at the other part of the suspension hook, d. H. the Locking element or the hook body, engages. about the locking lug and the recess is thus a lock in the closed position between the hook body and reaches the blocking element, which is an accidental opening the locking element relative to the hook body further complicated. In particular, while the locking lug and the corresponding recess be formed such that the engagement of the locking lug in the Locking recess already due to the weight of the locking element without further action of the user is ensured.

Preferably the blocking element has two parallel partial elements on, whose distance is dimensioned such that the hook body at least partially in the space between the sub-elements can intervene. As a result, a guide of the blocking element by allows the hook body, since the two Partial elements partially on the top and bottom of the hook body abut and thus the blocking element on both sides of the hook body running.

The Both sub-elements are preferably by at least one web connected to ensure the stability of the blocking element.

Preferably the web forms a stop for the movement of the locking element from the closed position, so that prevents the locking element opened too wide. In particular, for example, the stop prevent the locking element from being opened so far the center of gravity of the blocking element lies above the axis of rotation.

at an advantageous embodiment of the invention, the hook base body and the blocking element each have a through opening, which in the closed position of the locking element are aligned. As a result, the suspension hook is in the closed position lockable by, for example, through the through holes a padlock can be performed.

One Embodiment of the invention will be described with reference to the following Figures explained in detail. It shows

1 a top view of a suspension hook with a hook body and a blocking element with the blocking element in the closed position,

2 a perspective view of the suspension hook according to 1 with locking element pivoted out of the closed position,

3 a perspective view of the suspension hook according to 1 with blocking element pivoted out of the closed position up to a stop,

4a a representation of the suspension hook according to 1 during assembly of the blocking element to the hook base body,

4b a further illustration of the mounting of the suspension hook according to 1 and

4c a further illustration of the mounting of the suspension hook according to 1 ,

The 1 to 3 show different views of a suspension hook 10 with a hook body 20 and a blocking element 30 , wherein the blocking element 30 located in different positions. The 4a . 4b and 4c illustrate the assembly of the blocking element 30 on the hook body 20 of the suspension hook 10 according to the 1 to 3 , Like elements are designated in all figures with the same reference numerals. For a better overview, not all reference numbers are listed in all figures.

The hook body 20 is substantially C-shaped, wherein between the two free ends of the C-shaped hook body 20 a hook opening 25 is formed. The hook opening 25 and the hook body 20 enclose with it a receiving opening 50 , Becomes the hook basic body 20 is suspended by the hook opening 25 a fastening device in the receiving opening 50 of the hook base body 20 introduced. This fastening device may be, for example, an approximately horizontally hanging rod, a loop, an eyelet or any other fastening device, which after hooking the receiving opening 50 interspersed. The hook opening 25 has an opening angle α, which is approximately 90 °. As a result, the C-shaped hook body sweeps over 20 approximately an angle of 270 ° and essentially forms a three-quarter ring element. As in the 1 to 3 shown, the opening angle α of the hook opening 25 be significantly less than 90 ° and be, for example, about 65 °. Depending on the application to opening angle α of more than 90 ° may be possible. In general, the opening angle α is about 60 ° to 150 °.

The hook body 20 settles into a first section 21 , a second section 22 and a third section 23 divided, which cover in each case approximately a circumferential angle of 90 ° to 100 °. At the third section 23 which the hook opening 25 bounded on one side, is a mounting arm 28 arranged in the suspended state of the suspension hook 10 pointing substantially vertically downwards. At this attachment arm 28 The objects to be suspended can be arranged either directly or by means of a releasable fastening arrangement. Will the suspension hook 10 hung on a fixture, overlap the first section 21 and the second section 22 the corresponding fastening device, during the third section 23 with the attachment arm 28 hang substantially below the fastening device.

So that the suspension hook 10 can not be accidentally released after hanging on a fastening device, the locking element closes 30 in a closed position, which in 1 is shown, the hook opening 25 , The blocking element 10 is substantially C-shaped, wherein between the two free ends of the C a blocking element opening 35 is formed. The blocking element opening 35 covers an opening angle β, which may also be between about 60 ° and about 120 °. Also the blocking element 30 Thus, essentially sweeps over a circumferential angle of a three-quarter circle and forms approximately a three-quarter ring segment. The blocking element 30 can in a first section 31 , a second section 32 and a third section 33 be articulated, which are each formed approximately as a quarter ring segment.

The blocking element 30 is about a rotation axis 40 on the hook body 20 pivoted. The rotation axis 40 runs approximately through the free end of the first section 31 of the blocking element 30 and the transition area between the first section 21 and the second section 22 of the hook base body 20 , In the in 1 shown closing position thus closes the third section 33 of the blocking element 30 the hook opening 25 while the blocking element opening 35 through the first section 21 of the hook base body 20 is closed. The hook body 20 and the blocking element 30 thus form a closed eyelet, which ensures that in the hanging state of the suspension hook 10 no accidental release of the fastening device is possible. This is ensured by the fact that the blocking element 30 with hanging hook basic body 20 by its own weight around the axis of rotation 40 is rotated in the closed position. Because the rotation axis 40 in the transition area between the first section 21 and the second section 22 of the hook base body 20 is arranged, is the axis of rotation 40 with hanging hook 10 above the receiving opening 50 , so on the blocking element 30 at least in the deflected state, which, for example, in the 2 and 3 is shown, a torque acts, which the blocking element 30 in the in 1 shown closed position moves. But also in the 1 shown closed position is the center of gravity S of the blocking element 30 not perpendicular to the axis of rotation 40 , so that even in the closed position, a torque continues to act, which is also at low deflections of the suspension hook 10 from the vertical hanging position continue reliably the blocking element 30 holds in the closed position.

The blocking element 30 has two parallel partial elements 34a . 34b on which in the closed position respectively on the top 20a and the underside of the hook base body 20 at least partially come to lie. The distance between the two subelements 34a . 34b essentially corresponds to the height of the hook body 20 , The hook body 20 forms thus a guide for the blocking element 30 ,

To the blocking element 30 on the hook body 20 to be able to fasten, are on the hook body 20 in the transition area of the first section 21 and the second section 22 two cylindrical protrusions 26 arranged whose axes are the axis of rotation 40 form. In the subelements 34a . 34b is at the at the blocking element opening 35 adjacent free end of the first section 31 one mounting hole each 36 arranged in which the projections 26 of the hook base body 20 intervention.

An additional fuse in the hanging position of the suspension hook 10 is by a catch of the hook body 20 and the blocking element 30 reached in the closed position. This is on the hook body 20 especially in the transition area between the third section 23 and the attachment arm 28 a catch 27 arranged, which in a correspondingly shaped recess 37 in the transition area between the second section 32 and the third section 33 of the blocking element 30 on the inside of the subelement 34a . 34b is arranged, can intervene. In particular, the locking lug 27 and the recess 37 designed so that already due to the weight of the locking element 30 that the transfer of the blocking element 30 caused from an open position to the closed position, the locking is guaranteed. As in 3 recognizable, are in the insides of the sub-elements 34a . 34b opposite two recesses 37 arranged in which corresponding two on the outside of the hook body opposite locking lugs 27 intervention.

To the suspension hook 10 To make lockable, the hook basic body 20 a passage opening 29 and the blocking element 30 a passage opening 39 on, which are aligned in the closed position. This makes it possible, for example, a padlock through the two through holes 29 . 39 to lead and thus a rotation of the blocking element 30 to prevent from the closed position. The passage openings 29 . 39 can in the hook body 20 or the blocking element 30 be arranged by yourself. In the present embodiments is on the hook body 20 an eyelet 29b and on the blocking element 30 an eyelet 39b arranged, which lie in the closed position over each other, so that their through holes 29 . 39 aligned with each other.

The subelements 34a . 34b of the blocking element 30 are designed to increase stability over a bridge 38a connected with each other. The jetty 38a is in the range of the first section 31 on the outside, which is the receiving opening 50 facing away from, arranged. This forms the bridge 38a at the same time a stop, the rotation of the blocking element 30 in a clockwise direction over the in 1 Prevents closed position shown. In the third section 33 in the area of the free end of the third section 33 , which at the blocking element opening 35 adjacent, is another jetty 38b arranged as a stop when opening the blocking element 30 from the closed position is used. As in 3 shown, prevents the bridge 38b another rotation of the blocking element 30 counterclockwise out of the closed position, as the bridge 38b to the hook body 20 strikes.

For hanging the suspension hook 10 to a fastening device, the blocking element 30 counterclockwise from the in 1 shown closed position depending on the dimension of the fastening device only slightly, as in 2 , or continue, as in 3 shown, be turned out. The blocking element 30 gives the hook opening 25 free, so the hook body 20 can be hooked to the fastening device. Subsequently, the blocking element rotates 30 automatically back to the closed position, as by the weight of a torque about the axis of rotation 40 is produced. In particular, the center of gravity S of the blocking element is also in the closed position 30 not vertically below the axis of rotation 40 , so that a permanent torque is present, which also during movement of the suspension hook 10 from the vertically hanging position out the reliable closure of the hook opening 25 guaranteed.

In the 4a . 4b and 4c are different steps of mounting the blocking element 30 on the hook body 20 shown. As in 4a is shown, the first hook body 20 in the space between the subelement 34a and the subelement 34b of the blocking element 30 inserted and the blocking element 30 Turned further clockwise until the mounting holes 36 of the subelements 34a . 34b as in 4b shown in the vicinity of the projections 26 of the hook base body 20 reach. By slightly deforming and pushing apart of the sub-elements 34a . 34b it is possible the projections 26 in the mounting holes 36 introduce, as in 4c shown.

10

Hooks

20

Hook body

20a

top

21

first section

22

second section

23

third section

25

hook opening

26

head Start

27

locking lug

28

Mounting Arm

29

Through opening

29b

eyelet

30

blocking element

31

first section

32

second section

33

third section

34a

subelement

34b

subelement

35

Locking element opening

36

fastening opening

37

recess

38a

web

38b

web

39

Through opening

39b

eyelet

40

axis of rotation

50

receiving opening

S

main emphasis

α

opening angle

β

opening angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• AT 356979 [0007]
• - DE 1896668 [0008]

Claims (8)

Suspension hook ( 10 ) with a hook basic body ( 20 ) and a blocking element ( 30 ), the hook basic body ( 20 ) a hook opening ( 25 ), which by the blocking element ( 30 ) is closable in a closed position, including the blocking element ( 30 ) about a rotation axis ( 40 ) pivotally mounted on the hook body ( 20 ), and wherein the hook base body ( 20 ) and the hook opening ( 25 ) a receiving opening ( 50 ), characterized in that the axis of rotation ( 40 ) with hanging suspension hook ( 10 ) substantially above the receiving opening ( 50 ) is arranged and the blocking element ( 30 ) is designed and arranged such that, when the suspension hook is suspended ( 10 ) can be transferred by the own weight in the closed position. Suspension hook according to claim 1, characterized in that the hook base body ( 20 ) has approximately the shape of a C, between whose ends the hook opening ( 25 ) is arranged, wherein at one end of the C, a mounting arm ( 28 ) is arranged, which in hanging suspension hook ( 10 ) points downwards. Suspension hook according to claim 1 or 2, characterized in that the blocking element ( 30 ) has approximately the shape of a C, between whose ends a blocking element opening ( 35 ), wherein the blocking element ( 30 ) in the closed position in such a way to the hook main body ( 20 ) is arranged that a section ( 33 ) of the blocking element ( 30 ) the hook opening ( 25 ) and a section ( 21 ) of the hook base body ( 20 ) the blocking element opening ( 35 ) closes. Suspension hook according to one of the preceding claims, characterized in that on the hook body ( 20 ) and / or on the blocking element ( 30 ) at least one latch ( 27 ) is arranged, which in the closed position of the blocking element ( 30 ) in a corresponding recess ( 37 ) on the other element ( 20 . 30 ) intervenes. Suspension hook according to one of the preceding claims, characterized in that the blocking element ( 30 ) two mutually parallel partial elements ( 34a . 34b ) whose spacing is dimensioned such that the hook body ( 20 ) at least partially into the space between the subelements ( 34a . 34b ) can intervene. Suspension hook according to claim 5, characterized in that the two sub-elements ( 34a . 34b ) by at least one web ( 38a . 38b ) are connected. Suspension hook according to claim 6, characterized in that the web ( 38b ) a stop for the movement of the locking element ( 30 ) forms from the closed position. Suspension hook according to one of the preceding claims, characterized in that the hook base body ( 20 ) and the blocking element ( 30 ) in each case a through opening ( 29 . 39 ), which in the closed position of the blocking element ( 30 ) are aligned with each other.