CZ304057B6 - Gutter element - Google Patents

Abstract

The present invention relates to a gutter element (1), comprising a gutter body (2) on whose sidewalls (3, 4), there are provided sealing means and a cover (8) which is lockably fixed on the gutter body (2). The aim of the invention is to provide an easy to mount locking device for a cover to be placed on a gutter element. The device should also prevent rattling noises from being produced when the cover is driven over. To this end, at least one locking slider (9) which is subject to a spring (10) is provided. Said locking slider (9) engages with at least one surface (14) on at least one guiding surface (20) on the cover (8) and on the sealing means on the sidewalls (3, 4) of the gutter body (2) and holds the cover (8) on the gutter body (2) in a clip-like manner wherein said locking slider (9) is provided with a projection (15) which bears on a stop (17) provided on the cover (8) when the locking slider (9) is in its open position.

Description

(57)

The gutter element (1) with a gutter body (2), on whose side walls (3, 4) are arranged closing means and a cover (8) which is fixed to the gutter body (2) with at least one spring (10) biased with a latch (9). The latch bolt (9) is provided with an expanded head (16) to abut the lateral guide surfaces (20) on the cover (8) and the locking means on the side walls (3, 4) of the trough body (2) and engage with the lead-in (14) and locks the clamp-like cover (8) on the trough body (2), the lateral guide surface (20) on the cover (8) and the insertion ramp (14) on the side wall (3, 4) on which it rests The latch (9) is inclined to each other and the latch (9) abutting the spring (10) self-latches the latch (9), the latch (9) having a projection (15) which with the latch (9) in the open position, it abuts against the stop (17j (O on the cover (8)).

CQ

in

Gutter element

Technical field

The invention relates to a gutter element with a gutter body, on whose side walls there are provided closing means and a cover which is fixedly mounted on the gutter body, with at least one spring biased by a latch bolt.

BACKGROUND OF THE INVENTION

A drainage trough is known from EP 0 345 222, in which the grate is foldable into a support frame and provided with securing means on the side opposite to the folding axis. These securing means consist of an external reinforcement which extends into the recesses on the support frame. Other securing means may also be used. Although the gutter element is easy to install, the grating and the supporting frame cannot be made exactly so that the grating is supported in the supporting frame without play. As a result, clattering noise and increased wear occur as vehicles pass through the grate.

DE 42 41 703 (C2) further discloses locking means for a drainage trough cover. The cover is spring-lockable in the open and closed position. The locking means are guided on the cover and extend into one side wall of the drainage trough. However, there is also inevitably a play in these locking means, so that the cover is movable on the drainage trough, which leads to a clattering noise when the cover is passed over the vehicles.

DE 36 04 164 (A1) discloses a device for providing cover on a sewage shaft which can be operated from above and consists of roller bodies and a plurality of wedge tracks arranged on the circumference of the cover. A spring acts on the roller bodies. The disadvantage of the described solution is its complexity and low resistance to unfavorable environment in the sewer shaft.

EP 0 758 038 (B1) discloses a drainage trough with a U-shaped gutter, the upper edges of which are reinforced by a frame in which a cover element is inserted which protrudes on the frame on one longitudinal side and is provided on the opposite other longitudinal side at least one latching member for engaging a corresponding recess which is actuated by the retaining cam. The disadvantage of the described solution is again its complexity and low resistance to unfavorable environment in the drainage trough.

DE 4340410 (A1) relates to a surface drainage device, in particular a drainage trough, with a cover with openings, which can be fastened to a soil-mounted body, in particular a trough body, by means of attachment devices. The fastening device consists of fasteners in the form of screws and counterpart with threaded holes. The disadvantage of the described solution is again its complexity and low resistance to unfavorable environment in the drainage device.

Document JPH 11229417 (A) relates to a manhole cover which is provided with a latch which extends into recesses in the manhole. The described arrangement does not solve the question of clearance between the latch and the recess and hence the problem of noise when passing over.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a structure of an easily mountable locking device for a cover of a trough member, in which no clattering noises are produced when the cover is passed over the vehicles.

SUMMARY OF THE INVENTION

The problem is solved and the drawbacks of the known solutions of this kind are largely eliminated by a gutter element with a gutter body, on whose side walls there are closing means and a cover which is fixedly mounted on the gutter body according to the invention. at least one spring-biased latch which abuts at least one lateral guide surface on the cover and on the lead-in on the closing means on the side walls of the trough body and locks the cover in the manner of a clamp on the trough body.

By this locking, a positive and positive connection is achieved, so that the cover is integral with the trough body and to avoid disturbing clattering noise when the cover is passed over by vehicles.

In a preferred embodiment of the trough element according to the invention, the lateral guide surface on the cover and the lead-in slope on the side wall on which the snap bolt abuts are inclined towards each other. Alternatively, the latch surfaces which engage the cover and the side wall may also be inclined to one another. Due to this embodiment, the contact surfaces between the latch bolt, the side wall and the cover are wedge-shaped so that the cover is tightened to the trough body.

It is preferred that the latch in the open position protrudes at least partially above the cover of the chute body. In this way, it is easy to determine during assembly whether the locking means are already engaged with the trough body or whether a locking has yet to be carried out. It is advantageous if the locking means, i.e. the latch, must be pressed down during the locking process, so that the latching can also take place automatically, for example when the cover is driven over by the vehicle, in which the latch is thus pushed downwards.

In a further development of the invention, at least one spring-biased latch is used for force locking. This latch bolt forms a movable connecting member between the cover to be attached and the stationary trough body. Preferably, each of the latch bolts is snap-lockable to the closed position from the open projecting position by means of pressure from above, e.g. In this way, the latch can be brought into the closed position without the aid of a tool.

It is preferred that the spring biasing against the latch pushes the latch automatically into a wedge-shaped engagement. In this way, each latch bolt is pressed by a spring to the side wall of the chute body in the closed position, abuts against a tightening point on the cover and engages a retaining projection in the side wall. The cover is thus held on the side wall with great force, the latch bolt being clamped on one side on the side wall and on the other side abutting a clamping point on the cover.

In one embodiment, the latch bolt is provided with a retaining projection that abuts a leading edge on the side wall that extends obliquely to the horizontal plane. The bias of the spring towards the side wall is thus distributed into a plurality of force components, the insertion lead pushing the latch bolt downward so that the latch bolt also presses the cover against the trough body.

The lead-in is preferably formed on the side wall and extends from the inside of the chute body curved downwards, so that the travel of the latch bar from the open position to the closed position is reduced. In the case of a direct leading-in lead-in, the maximum travel distance of the latch to compensate for manufacturing tolerances would have to be longer than in a curved lead-in design.

It is also advantageous if a gap is formed between the cover and the support element and the latch bolt is unlockable by means of a tool insertable into the gap.

. 9.

In order to be able to exert a particularly good pressure on the cover, in the area of the tightening point between the latch bolt and the cover, the surface on the cover is formed substantially perpendicular to the insertion lead-in. As a result, the cover is pressed against the side wall in the horizontal direction and pressed against the side wall in the vertical direction.

For ease of mounting of the cover, it is advantageous if the cover can be snapped onto the side walls of the trough body. The gutter body can be mirrored symmetrically, so that the cover can then be mounted on both sides. To engage the cover, a protrusion is formed on the cover on the side opposite to the latch bolt, which is at least partially surrounded by a side wall connected by a support element.

The snap bolt is preferably retained permanently on the cover and spring.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention is further elucidated with reference to the accompanying drawings, in which:

1 shows a cross-section of a first exemplary embodiment of a gutter element according to the invention in a closed state; FIG.

FIG. 2 is a cross-sectional view of the trough element of FIG. 1 with the latch bolt open;

FIG. 3 is a cross-sectional view of the trough element of FIG. 1 with the cover slightly open;

FIG. 4 is a cross-sectional view of the trough element of FIG. 1 with the cover open and the latch in the closed position;

FIG. 5 is a plan view of the chute element of FIG. 1;

FIG. 6 shows a longitudinal section through the trough element of FIG. 1;

FIG. 7 is an enlarged perspective view of the latch; and

1 to 4a a modified embodiment, the details of FIGS. 1 to 4 in the region of the spring-loaded latch.

DETAILED DESCRIPTION OF THE INVENTION

The gutter element I consists of a gutter body 2 made of concrete, having a U-shaped inner cross section and a rectangular outer cross-section. The gutter body 2 is integrally formed with the side walls 3,

4. On the side wall 3 there is arranged a metal support element 5, which is fixedly connected to this side wall 3. On the side wall 4 there is arranged a support element 6 which is structurally identical to the support element 5. The cross-section of the trough body 2 in FIG. 1 runs in the plane XX shown in FIG. 5.

The chute body 2 is closed on its upper side by a cover 8, which is provided with at least one projection 7, which is partially surrounded by a support element 5.

K. two cover bolts 9 are distributed along the length of the cover 8 on the trough body 2, which are pushed towards the side wall 4, i.e. to the left in FIG. 1, by means of a spring 10.

The latch 9, with its extended head 16 in the closed position, rests on the side guide surfaces 20 in the slots 12 on the cover 8. The latch 9 is further provided with a retaining projection 13 at its lower part, which engages the recess 18 in the support member 6. In the recess 18, an introductory lead-in 14 is provided which is slightly arched downwards. The retaining projection 13 rests on the lead-in lead 14 with its apex. The latch thus presses the cover 8 against the support element 6.

-3 CZ 304057 B6

The latch bolt 9 is further provided with a projection 15 which abuts against the stop 17 on the cover 8 when the latch bolt 9 is in the open position. The latch bolt 9 has a rounded surface at the top of the widened head 16 which extends above the cover 8 in the open position.

The spring 10 rests by its curvature 11 on the latch bolt 9, which is provided with a projection 22 in its lower part, so that the spring 10 is permanently placed between the cover 8 and the latch bolt 9.

As can be seen from FIGS. 5 and 6, the side walls 3 and 4 are mirror-symmetrical so that the cover 8 can be mounted on the chute body 2 from both sides.

Next, the assembly of the cover 8 and the opening of the cover 8 will be described.

In FIG. 1, the gutter element 1 with the cover 8 and the latch bolt 9 is shown in a closed state. The spring 10 presses the latch bolt 9 to the retraction point 12 and, in the region of the retaining projection 13, to the lead-in drive 14, so that the cover 8 is held against the trough body by pressing

2. The latch bolt 9 is pushed obliquely downward by the inclined lead-in slope 14, so that, apart from the horizontal force component, the force component also acts vertically downwards. The cover 8 is thus firmly tightened to the trough body 2.

When opening the cover 8, the tool is inserted into the gap 23 between the cover 8 and the latch bolt 9 and the latch bolt 9 is angled upwardly according to the knuckle 26 in Fig. 1. The projection 15 on the latch bolt 9 thus abuts the stop V7 on the latch 8. so that the latch 9 is fixed by the spring 10 in the open position. The protrusion 24 on the retaining protrusion 13 bears on the section of the cover 8 so that the latch bolt 9 cannot be folded out.

The cover 8 can be removed from the trough body 2 in this position by tilting the cover 8 upwards according to FIG. The tilting axis is determined by the support element 5 and the projection 7.

For closing the cover 8, for example, the latch bolt 9 can be in the open position of FIG. 2 and the lid 8 can be tilted to the chute body 2. Consequently, only the latch bolt 9 needs to be pushed down until the protrusion 24 on the retaining protrusion 13 comes out of engagement. By means of the spring 10, the spring 10 is swiveled into the recess 18. Once the retaining projection 13 rests on the insertion lead 14, the spring 10 produces a force which holds the cover 8 on the molded body 2.

Should it be forgotten to fix the cover 8, the expanded head 16 of the latch bolt 9 is pushed downwards when the car is driven over the vehicle 8 so that the latch bolt 9 is forced downwards and locks into the closed position.

As shown in FIG. 4, the cover 8 can also be locked in the closed position by a latch bolt 9. The retaining projection 13 then slides after the insertion chamfer 19 of the support element 6 and engages the recess 18 in the manner of a snap joint. it locks into the closed position.

As shown in FIG. 5, the support member 5 is provided with three fingers 25 spaced along the length of the chute body 2 which hold the cover 8 on the side wall 3 on the side opposite to the latch bolt 9. In FIGS. and the support element 5 shows a gap, but the cast iron grate formed by the cover 8 is mostly slightly arched, so that the cover 8 in the middle part abuts the thumb 25, while in the lateral region the cover 8 rests on the bottom element 5. 5 and the cover 8 have been formed substantially fit together, or use other means for fixing.

-4GB 304057 B6

In the illustrated embodiment, the cover 8 on one side is merely inserted into the support element 5 and subsequently folded in. It is also possible to provide a latch bolt 9 on both sides of the cover 8.

The cover 8 is preferably a cast iron grate. However, it is also possible for the cover 8 to be formed by a pressed metal grate or other shape. In the example shown, the latch bolt 9 is of metal and the spring 10 is of stainless steel. However, it is also possible to use other materials and replace the spring 10 with a disc or coil spring.

Figures 1a to 4a show the same situations as those in figures 1 to 4, but with the trough body 2 / in the cut-out.

The difference from FIGS. 1 to 4 lies essentially in the embodiment of the spring 10a which is clamped here by its smooth arm 27 at the rear of the latch bolt 9 between the expanded head 16 and the rear lower projection 22 while its bent arm 28 abuts the cast bridge 29 of the housing 8a. .

This embodiment has the advantage that any contaminants falling from above do not block the gap 30 between the spring 10a and the bridge 29 of the cover 8a and do not affect the operation of the spring 10a, but over time due to the downward movement of the spring 10a.

Claims (7)

PATENT CLAIMS A gutter element (1) with a gutter body (2), in which side walls (3, 4) are provided with closing means and a cover (8) which is fixedly mounted on the gutter body (2) with at least one spring (10) A pre-tensioned snap bolt (9), characterized in that the snap bolt (9) is provided with an expanded head (16) to abut the side guide surfaces (20) on the cover (8) and on the closing means on the side walls (3, 4). of the chute body (2) and engage with the lead-in lead (14) and lock the cover (8) in the manner of a clamp on the chute body (2), the lateral guide surface (20) on the cover (8) and lead-in lead (14) the side wall (3, 4) on which the latch (9) abuts, are inclined to each other, and the latch (9) abutting the spring (10) automatically latches the latch (9) into a wedge-shaped engagement, the latch ( 9) is provided in a projection (15) which, with the latch bolt (9) in the open position, abuts against the stop (17) on the cover (8). A gutter element according to claim 1, characterized in that the surfaces of the latch (9) which abut the cover (8) and the side wall (3, 4) are inclined towards each other. A gutter element according to claim 1 or 2, characterized in that the latch bolt (9) in the open position protrudes at least partially above the cover (8) of the gutter body (2), wherein the latch bolt (9) is snap-lockable from the open projecting to the closed position. A gutter element according to any one of the preceding claims, characterized in that the insertion ramp (14) is formed on a side wall (4) which extends curved downwards from the inner side of the gutter body (2). A gutter element according to any one of the preceding claims, characterized in that a gap (23) is formed between the cover (8) and the support element (6) and the latch bolt (9) can be unlocked by means of a tool insertable into the gap (23). . A gutter element according to any one of the preceding claims, characterized in that the latch bolt (9) is retained permanently on the cover (8) and the spring (10). -5GB 304057 B6 A gutter element according to any one of the preceding claims, characterized in that the female of the cover (8) has a projection (7) on the side opposite to the latch bolt (9), which is at least partially surrounded with a side wall (3) connected by the support element (8). 5), wherein the cover (8) is hinged to the side walls (3, 4) of the trough body (2).