Fixing device for fasteners having a polygonal head

Abstract

A fixing device for fasteners having a polygonal head for the detachable connection of flanges which can be connected to one another and clamped against one another by a screw connection includes a chain which encompasses at least some regions of the lateral surface of the polygonal heads in a form-fitting manner and inhibits the rotation of said fasteners. The chain comprises a plurality of spaced members, each having at least one receptacle, the inner profile of which corresponds to the lateral surface of the polygonal heads. The chain comprises at least one releasable tensioner for detachably joining two ends of the chain. A flexible securing means is provided, which extends circumferentially along the chain, wherein at least two ends of the securing means can be releasably connected to one another.

Claims

1. A fixing device (1) for securing a plurality of fasteners (2), each having a polygonal head, that detachably connect two flanges (3) to one another, the fixing device (1) comprising: a chain (10) having members (100) which are configured to encompass some regions of lateral surfaces of the polygonal heads (20) in a form-fitting manner and thereby inhibit rotation of the plurality of fasteners (2) and a tensioner (102) for detachably joining two ends (103a, 103b) of the chain (10); and a flexible securing means (12) for fixing components of the fixing device (1), the flexible securing means extending circumferentially along the fixing device (1) and having two ends (120a, 120b) which can be detachably connected to one another.

2. The fixing device (1) according to claim 1, wherein the flexible securing means (12) rests against the members (100) of the chain (10).

3. The fixing device (1) according to claim 1, wherein spacing members (101) are provided between the members (100), a length of which spacing members essentially corresponds to a distance between the fasteners (2), and wherein the flexible securing means (12) rests against the spacing members (101).

4. The fixing device (1) according to claim 3, wherein the members (100) are each formed from at least one side member (1001, 1002) and at least one connecting bolt (1003) connecting the side members (1001, 1002) of the members (100) to one another, and wherein the spacing members (101) are formed from at least two side members (1011, 1012) arranged essentially parallel to one another and at least one connecting bolt (1003) connecting the side members (1011, 1012) to one another, and wherein the flexible securing means (12) rests against the connecting bolts (1003).

5. The fixing device (1) according to claim 4, further comprising pin-shaped fixing means (1005) for fixing the flexible securing means (12) on the side members (1001, 1002).

6. The fixing device (1) according to claim 4, wherein the tensioner (102) is formed from two connector parts (1021, 1022) which can be detachably connected to one another.

7. The fixing device (1) according to claim 6, wherein the two ends (120a, 120b) of the flexible securing means (12) are releasably connected to one another between two polygonal heads (20).

8. The fixing device (1) according to claim 7, wherein the two ends (120a, 120b) are connected to one another by a lock (1200).

9. The fixing device (1) according to claim 6, wherein the connector parts (1021, 1022) are connected to one another by a quick release fastener (1023).

10. The fixing device (1) according to claim 9, wherein the quick release fastener (1023) comprises a clamping screw (1023) which connects the two connector parts (1021, 1022) to one another by screws.

11. The fixing device (1) according to claim 10, wherein a connecting device (1024) is provided which holds the two spaced connecting parts (1021, 1022) at a defined maximum distance, which prevents the clamping screw (1023) from the connecting parts (1021, 1022) or correspondingly provided threads on the connecting parts (1021, 1022) from being turned when the quick release fastener (1023) is untwisted.

12. The fixing device (1) according to claim 11, wherein the connecting bolt (1024) is slidably guided on receptacles (1024″) of the connecting parts (1021, 1022), and wherein stoppers (1024″) are provided on end sides of the connector (1024′), which stoppers effectively prevent the connector (1024′) from sliding out of the receptacles (1024″).

13. The fixing device (1) according to claim 9, wherein a locking pin (1025) fixing the connecting part (1022) is provided on the quick release fastener (1023), a step being formed on a tip (1025′) of the locking, onto which tip step a sheet (1025″) having a projection is placed or glued.

14. The fixing device (1) according to claim 4, further comprising neodymium magnets integrated into the connecting bolts (1003) on one side.

15. The fixing device (1) according claim 4, wherein the connecting bolts (1003) are provided with a cap (1003′).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further objectives, features, advantages and possible uses of the fixing device arise from the following description of an embodiment with reference to the drawings.

(2) FIG. 1 shows a fixing device in a perspective sectional view on a flange connection.

(3) FIG. 2 shows the fixing means in sectional view.

(4) FIG. 3 shows the fixing means in plan view with front side members.

(5) FIG. 4 shows the fixing device on a flange in a further embodiment in a perspective view.

(6) FIG. 5 shows a rear perspective detail view of the fixing device as illustrated in FIG. 4.

(7) FIG. 6 illustrates a plan view from above of the fixing device on a flange connection.

DETAILED DESCRIPTION

(8) As shown in FIG. 1, the fixing means 10 is preferably a chain 10, wherein the inner profile of individual members 100 of the chain 10 is designed for encompassing some regions of the lateral surface of the polygonal heads 20 in a form-fitting manner. Spacing members 101 are particularly advantageously provided between the members 100, the length of which spacing members essentially corresponds to the distance of the fasteners 2. In order to achieve an exact positioning and an ideal hold of the fixing means 10, the side members 1001 are preferably designed such that they essentially rest flat against the flange 3.

(9) As shown in FIGS. 1-3, the members 100 are formed from at least one side member 1001, and preferably have two side members 1001, 1002 arranged parallel, (FIG. 3) and at least one connecting bolt 1003 connecting the side members 1001, 1002 of the members 100 to one another. As shown in FIG. 5, neodymium magnets are integrated into the connecting bolts 1003 on one side (blind hole). The chain 10 will thus constantly rest against the flange 3. This also allows the chain 10 to be attached overhead (vertically) and thus also simplifies the screwing of vertical flange connections.

(10) As shown in FIG. 5, the connecting bolts 1003 are advantageously provided with a cap 1003′ in order to protect the integrated magnet against soiling, among other things. The main purpose of said cap 1003′ is to prevent corrosion on different metals. That is, when an unpainted flange 3 consists of a less noble alloy than the connecting bolt 1003, the material there will start to corrode (rust). Severe material damage can occur when a chain 10 is used for securing the screw in the long term.

(11) Furthermore, it is advantageous to form the spacing members 101 from at least two side members 1011, 1012 arranged essentially parallel to one another and at least one connecting bolt 1003 connecting the side members 1011, 1012 to one another. Hollow cylindrical spacing means 1004 are preferably arranged between the side members 1001, 1011, 1012, through which spacing means the connecting bolts 1003 are guided, wherein the flexible securing means 12 preferably rests against the connecting bolts 1003.

(12) In a further embodiment, the fixing means 10 comprises at least one tensioner 102 for detachably joining two ends 103a, 103b of the fixing means 10. Said tensioner 102 is preferably designed as a clamping means and very particularly preferably adjustable in length. The tensioner 102 is, for example, a screw connection. In this case, the at least one tensioner 102 is advantageously formed for the detachable joining together of two ends 103a, 103b of the fixing means 10 from at least two connector parts 1021, 1022, which can be releasably connected to one another, wherein the connector parts 1021, 1022 can preferably be connected to one another by means of a quick release fastener 1023. The quick release fastener 1023 advantageously comprises at least one clamping screw 1023 which connects the two connector parts 1021, 1022 so that they can be screwed together.

(13) Due to the protruding contour (compared to the contour sheet), it is possible to connect the securing means 12 below the tensioner 102 and thus enabling an easy tightening/loosening of the tensioner 102 or the locking of the fixing device 1, for example, by means of the quick release sheets.

(14) The at least two ends 120a, 120b of the securing means 12—seen in the circumferential direction—are furthermore preferably releasably connected to one another below the at least one releasable tensioner 102 between two polygonal heads 20.

(15) Moreover, as shown in FIGS. 1 and 2, the at least two ends 120a, 120b are preferably connected to one another by means of a lock 1200.

(16) In an advantageous embodiment, pin-like fixing means with transverse bore 1005 for fixing the securing means 12 is provided on the side members 1001 for guiding the securing means 12, which prevents the securing means 12 from jumping out of the fixing device 1 (threaded).

(17) FIGS. 4 and 5 show the fixing device 1 on a flange 3 in a further advantageous embodiment, in each case in perspective rear views.

(18) As shown in FIG. 5, a connecting device 1024, which holds the two spaced connecting parts 1021, 1022 at a defined maximum distance, is preferably provided, which prevents the advantageously provided clamping screw 1023 from the connecting parts 1021, 1022 or the correspondingly provided threads on the connecting parts 1021, 1022 from being turned when the quick release fastener is untwisted.

(19) The connecting bolt 1024 is advantageously formed from a bolt, style or rod-like connector part 1024′, which is slidably guided on receptacles 1024″ of the connecting parts 1021, 1022, wherein stoppers 1024′″ are provided on the end sides of the connector 1024′, which effectively prevent the connector 1024′ from sliding out of the receptacles 1024″.

(20) This effectively prevents the clamping screw 1023 from coming off when the connection is detached and thereby damaging the connection or even completely losing the clamping screw 1023.

(21) As further shown in FIGS. 1 to 5, a locking pin 1025 fixing the connecting part 1022 is provided on the quick release fastener 1023, a step being formed onto the same at the locking pin's tip 1025′ according to FIGS. 4 and 5, onto which step a sheet 1025″ having a projection is placed or glued. The locking pin 1025 can be guided through a corresponding recess in the clamping sheet or on the clamping block. Falling out is no longer possible when the locking pin 1025 is turned. The zero position for pulling out can be seen on the front side.

(22) The fixing device 1 is not limited in its design to the preferred embodiments specified above. Rather, a multitude of design variations are conceivable, which make use of the solution illustrated even when the execution is fundamentally different.

LIST OF REFERENCE NUMBERS

(23) 1 fixing device 2 fasteners, nuts on the flange 3 flange 10 fixing means, chain 12 flexible securing means 20 polygonal heads 100 member 101 spacing member 102 tensioner on the fixing means 103a, 103b ends of the fixing means 120a, 120b ends of the securing means 1000 receptacle 1001,1002 side members 1003 connecting bolt 1003′ cap on the connecting bolts 1004 spacing means 1005 pin-like fixing means 1011,1012 side members of the spacing members 1021,1022 connector parts 1023 quick release fastener 1024 connecting device 1024′ bolt, style or rod-like connector part 1024″ receptacles 1024′″ stopper 1025 locking pin 1025′ tip on the locking pin 1025″ sheet having projection 1200 lock for the ends of the securing means