DE202018101616U1 - Pawl closure for one access decking and access decking - Google Patents

Abstract

Pawl closure (10) for a access deck (44), comprising a mounting portion (12) for attaching the latch closure (10) to the access deck (10) and a pawl (14) with a bearing arm (16) and with a locking portion (18), wherein the pawl (14) with its bearing arm (16) via a pin (22) about a pivot axis (24) pivotally mounted on the mounting portion (12), wherein the locking portion (18) has a first and a second locking surface (26, 28) for engaging behind a respective component of the access flooring (10) and wherein the second locking surface (28) from the mounting portion (12) in the axial direction is further spaced and extends from the bearing arm (16) further away, as the first locking surface (26).

Description

The invention relates to a latch closure for a access deck, comprising a mounting portion for securing the latch closure on the access deck and a pawl, with a bearing arm and a locking portion, wherein the pawl is mounted with its bearing arm via a pin about a pivot axis pivotally mounted on the mounting portion. In addition, the invention relates to an access deck with several such latch locks.

Pawls of the type mentioned in scaffolding for a long time in scaffold planks with access function, d. H. used in so-called access flooring. Access flooring has an access opening, which can be closed reversibly by means of a flap hinged on the access floor. The access flooring is often provided with a ladder pivotally mounted on the access floor, so that a connecting path between a lower framework level and an overlying scaffolding level of a scaffold can be provided by the access flooring. The latch locks serve to secure the access door in its functional position closing the access opening and the rung ladder in their functional position folded onto the access floor. As a result, on the one hand a simplified transport and a simplified storage (stackability) of the access flooring can be achieved. On the other hand, the access flooring can thus be integrated into a scaffolding even with disabled access function.

In the case of the access flooring available on the market, different latch locks are usually installed to secure the rung ladder and the access door. The latch locks often differ in their size, their operation and also in their installation requirements. This leads to increased manufacturing, assembly and maintenance costs. Also, the handling of the access flooring is made difficult.

It is therefore an object of the present invention to provide a universally applicable and inexpensive to manufacture latch closure. Moreover, it is the object of the invention to provide an access flooring with generic latch closures, which is easier, faster and cheaper to manufacture and at the same time ensures a high level of occupational safety.

The pawl closure object is achieved by a latch with the features specified in protection claim 1. The access flooring according to the invention is specified in protection claim 10.

The latch closure according to the invention is characterized in that the locking portion of the pawl has a first and a second locking surface for engaging behind a respective component of the access flooring and wherein the second locking surface of the mounting portion in the axial direction is further spaced and further away from the bearing arm, as the first blocking area. As a result, the latch closure can be used in a simplified manner for different security tasks on an access floor. Due to the different axial spacing and projection of the locking surfaces of the latch lock both for locking d. H. for securing or locking the access door in its closure opening closing the closing position and the rung ladder can be used.

Particularly preferably, the two locking surfaces of the locking portion of the pawl are arranged to extend parallel to each other. As a result, the pawl can be easily pivoted into its respective blocking position and moved out of its blocking position. A snagging or tilting of the pawl can be reliably counteracted.

According to a preferred embodiment of the invention, at least one of the two locking surfaces of the pawl - at least partially - to the axial end of the locking portion relative to the pivot axis at an acute angle α with α ≤ 90, in particular at an angle α of about 80 °, arranged obliquely , In other words, the respective blocking surface is aligned non-orthogonally with respect to the pivot axis (possibly in the parallel projection). As a result, the component of the access flooring to be secured with the latch closure can be partially engaged behind and thus locked in its respective functional position in a particularly reliable manner. If, for example, the second blocking surface is formed in this manner, this offers a further gain in safety when transporting the access flooring or when using the access flooring with deactivated access function.

According to the invention, the first locking surface and the second locking surface of the pawl can cover each other in sections in the axial direction. This allows a particularly compact pawl without loss of functionality can be realized. At the same time thereby the material usage of the latch can be kept low.

Particularly preferably, the pawl is about its pivot axis against the force of a spring from her Locking position deflectable. As a result, a particularly high operational reliability of the pawl lock can be ensured.

According to the invention, a profile leg can be formed on the mounting portion, which extends away in the axial direction of the mounting portion and against which the pawl rests in its blocking position. The mounting portion thus serves the pawl as a (pivot) stop, through which the locking position of the pawl is defined. This is for the reliability and ease of installation of the latch closure advantage.

For a simple and safe handling of the latch closure, the pawl on an actuating arm, which extends away from the pivot axis in a radial direction to the outside. The actuating arm and the bearing arm of the pawl preferably merge without steps into each other in order to minimize the risk of injury when operating the latch closure.

For the above reasons, as well as from a cost point of view, the pawl may in particular be a one-piece mold bending part.

With a view to the greatest possible load-carrying capacity of the latch closure and a long service life under harsh operating conditions, the latch closure is at least partially, preferably in total, made of metal. Aluminum and steel are particularly suitable here.

• • eine Durchstiegsöffnung, die mittels einer am Durchstiegsbelag angelenkten Durchstiegsklappe verschließbar ist;
• • eine Sprossenleiter, die am Durchstiegsbelag zwischen einer an den Durchstiegsbelag angeklappten Funktionsstellung, und einer vom Durchstiegsbelag abgeklappten Funktionsstellung verschwenkbar angeordnet ist;
• • einen ersten Klinkenverschluss zum Arretieren der Durchstiegsklappe in ihrer die Durchstiegsöffnung verschließenden Verschlussstellung; und
• • einen zweiten Klinkenverschluss zum Arretieren der Sprossenleiter in ihrer an den Durchstiegsbelag angeklappten Funktionsstellung.

The access flooring according to the invention serves for use in a scaffold and comprises

• • an access opening, which can be closed by means of an access door hinged to the access floor;
• A rung ladder, which is pivotably arranged on the access flooring between a functional position folded onto the access flooring and a functional position folded down from the access floor;
• A first latch closure for locking the access door in its closing position closing the access opening; and
• • a second latch for locking the rung ladder in its functional position folded onto the access deck.

The access deck has the advantages set forth above in connection with the latch closure in the same way. In addition, the access flooring is generally simpler and less expensive to manufacture and repair than the access flooring available on the market through the use of two identical latch locks.

According to a preferred embodiment of the invention, the locking portion of the first latch closure engages over a transverse profile of the support structure of the access flooring in his the access door in its closing the access opening functional position with its first blocking surface.

The pawl of the first latch closure can overlap the rung ladder in its folded position with its second blocking surface in sections in its blocking position.

For an adaptation of the mounting height of the two universal closures relative to the part of the rung ladder or the access door which can be overlapped by their locking section, they can be fastened with their mounting sections via spacer elements to their respective mounting position. In particular, rivets or screws can serve as fastening means.

Most preferably, the locking portions of the pawls each have a guide slope or inclined surface, so that the guide slope runs through a folding of the rung ladder to the access deck or by folding the access door along its slope on the rung ladder / a support profile or the covering of the access flooring and by the pressure of the above-described spring element is converted into its blocking position. In other words, the pawl is preferably designed as a rotary latch.

Further advantages of the invention will become apparent from the description and the drawings. Likewise, according to the invention, the above-mentioned features and those which are still further developed can each be used individually for themselves or for a plurality of combinations of any kind. The embodiments shown and described are not to be understood as exhaustive enumeration, but rather have exemplary character for the description of the invention.

• 1 einen Klinkenverschluss zum Arretieren von Bauteilen an einem Durchstiegsbelag, mit einem Montageabschnitt und einem am Montageabschnitt verschwenkbar gelagerten Sperrklinke, die zwei voneinander beabstandet angeordnete Sperrflächen zum Übergreifen der am Durchstiegsbelag zu arretierenden Bauteilen aufweist;
• 2 den Klinkenverschluss gemäß 1 in einer ersten Seitenansicht;
• 3 den Klinkenverschluss gemäß 3 in einer zweiten Seitenansicht;
• 4 den Klinkenverschluss gemäß 1 in einer dritten Seitenansicht;
• 5 einen Durchstiegsbelag mit einer Durchstiegsöffnung, die mittels einer am Durchstiegsbelag angelenkten Durchstiegsklappe verschließbar ist, und mit einer Sprossenleiter, die am Durchstiegsbelag zwischen einer an den Durchstiegsbelag angeklappten Funktionsstellung, und einer vom Durchstiegsbelag abgeklappten Funktionsstellung verschwenkbar angeordnet ist, wobei die Sprossenleiter und die Durchstiegsklappe mit jeweils einem Klinkenverschluss gemäß 1 am Durchstiegsbelag arretierbar sind;
• 6 den Durchstiegsbelag gemäß 5, in einer ausschnittsweisen perspektivischen Detaildarstellung des die Durchstiegsklappe sichernden Klinkenverschlusses;
• 7 den Durchstiegsbelag gemäß 5, in einer anderen perspektivischen Detaildarstellung des die Durchstiegsklappe sichernden Klinkenverschlusses;
• 8 den Durchstiegsbelag gemäß 5 in einer ausschnittsweisen Schnittdarstellung mit dem die Sprossenleiter sichernden Klinkenverschluss;
• 9 den Durchstiegsbelag gemäß 5, in einer ausschnittsweisen perspektivischen Detaildarstellung des die Sprossenleiter sichernden Klinkenverschlusses; und
• 10 einen Durchstiegsbelag, bei dem die Klinkenverschlüsse jeweils eine als Schrägfläche ausgeführte zweite Sperrfläche aufweisen.

In the drawing show:

• 1 a pawl lock for locking components on a gangway, with a mounting portion and a pivotally mounted on the mounting portion pawl, which has two spaced-apart locking surfaces for engaging over the access panel to be locked components;
• 2 the latch lock according to 1 in a first side view;
• 3 the latch lock according to 3 in a second side view;
• 4 the latch lock according to 1 in a third side view;
• 5 an access deck with a access opening, which is closed by means of an access panel hinged access door, and with a rung ladder, which is pivotally mounted on the access deck between a hinged to the access deck functional position, and folded down by the access deck functional position, the ladder and the access door with each a latch closure according to 1 can be locked on the access floor;
• 6 the access deck according to 5 in a fragmentary perspective detail of the latch flap securing catching flap;
• 7 the access deck according to 5 in another perspective detail view of the latch flap securing catcher flap;
• 8th the access deck according to 5 in a sectional sectional view with the rung ladder locking latch lock;
• 9 the access deck according to 5 in a fragmentary perspective detail view of the rung lock securing latch lock; and
• 10 an access deck in which the latch locks each have a second blocking surface designed as an inclined surface.

1 shows a latch 10 for locking add-on parts of a walk-through covering used in scaffolding. The latch closure 10 has a plate-shaped mounting portion here 12 for attaching the latch closure 10 on the access deck and a pawl 14 on. The pawl 14 includes a bearing arm 16 , one on the bearing arm 16 arranged lock section 18 and an actuating arm 20 , The bearing arm 16 is over a cone 22 around a pivot axis 24 pivoted on the mounting section 12 stored. The lock section 18 extends from the bearing arm 16 away in an axial direction. At the lock section 18 are a first and a second blocking surface 26 . 28 for reaching over or behind a respective on the access flooring 10 to be locked or secured component of the access flooring 10 formed. The second blocking area 28 extends here to a free end 30 of the barrier section 18 , The actuating arm 20 and the bearing arm 16 the pawl 14 go steplessly into each other. The pawl 14 is here in one piece as a formed bending part, preferably made of metal, formed. One at the assembly section 12 molded profile leg 32 extends in the axial direction of the mounting portion 12 path. The mounting section 12 and the profile leg 32 are here by a one-piece angle profile 34 formed with an L-shaped cross-sectional shape. The pawl is in her in 1 shown locking position on the profile leg 32 and can relative to the mounting section 12 in the direction of the arrow 36 against the power of an in 2 shown spring element 38 be deflected rotationally from its locked position. The spring element 38 can be designed in particular as a torsion spring. The spring element 38 is with one of his free ends 40 on the actuating arm 20 the pawl 14 established. The pawl 14 is preferably designed in the sense of a catch and has a run-on slope or an inclined surface 41 on. When a component comes to rest against the inclined surface 41 can the pawl 14 moved by the component from its locked position and then snap back spring loaded in their locked position.

According to the in 3 shown side view of the latch closure 10 is the second blocking area 28 from the mounting section 12 in one to the pivot axis 24 Axial direction further spaced than the first locking surface 26 , In addition, the second blocking surface extends 28 relative to the bearing arm 16 farther away than the first barrier area 26 , The two restricted areas 26 . 28 are arranged here by way of example parallel to each other. It should be noted that the first lock area 26 and the second blocking area 28 Cover each other in sections in the axial direction. This is a particularly compact design of the pawl 14 reached.

The mounting section 12 can according to 4 fixing recesses 42 respectively. This can be the latch 10 simplified attached to the access flooring, in particular with this riveted or screwed, be. The latch closure 10 preferably consists entirely of metal, in particular aluminum or stainless steel.

In 5 is a in scaffolding as access flooring 44 designated scaffolding with Durchstiegsfunktion shown in a bottom view. The access decking 44 has a coating 46 with a access opening 48 on. The surface 46 may consist of steel, wood, a wood material, plastic, a fiber composite material or other suitable material. Also, the flooring can 46 be executed in Holprofilbauweise. To support the lining is a support structure 50 , The support structure 50 here by way of example comprises two longitudinal profiles or longitudinal bars 52 that have multiple cross sections 54 connected to each other. The access decking 46 has both hooks 56 on, via the access flooring on scaffolding posts or their nodes, is releasably fastened.

For reversible closing of the access opening 48 serves an access door 58 sitting at the walkway 44 , for example, on the surface 46 or at one of the cross sections 54 , is hinged. The access door 58 can in the assembled state of the access flooring 44 (Based on the Lotrichtung) swung up or unfolded. An axis of rotation of the access door 58 is in 5 denoted by 60.

At the walkway 44 is in a conventional manner a rung ladder 62 arranged, the one end swiveling on the access floor 44 is attached. The rung ladder allows through the access opening 48 pass through from a lower framework level to the overlying arranged scaffold plane, and vice versa.

For the transport and, in particular stacked, storage of the access decking 44 becomes the rung ladder 62 folded onto the access flooring. To secure the access door 58 in her the access opening 48 Closing closure position serves a first latch 10 , A second latch 10 serves to lock the rung ladder 62 in her to the boarding deck 44 folded functional position. The two latch locks 10 of the access floor 44 are identical, ie identical, executed.

In the 6 and 7 is the first latch 10 in his the access door 58 locking position shown in a detailed view. The first latch 10 is with its plate-like mounting section 12 at the bottom of the access door 58 attached. For this serve fasteners 64 such as rivets or screws, which are characterized by the in 4 shown mounting recesses 42 of the mounting section 12 therethrough. Between the bottom of the access door 58 and the mounting section 12 can be a spacer 66 be arranged. The spacer 66 serves a height compensation of the barrier section 18 relative to the bottom of the pawl 14 in locking position to cross-profile 54 the support structure 50 of the access floor 44 , The spacer 66 can be made of metal, plastic or a composite material. Alternatively, the spacer 66 also on the access door 58 be formed.

In the blocking position, the locking section overlaps 18 the pawl 14 the first latch 10 one of the cross sections 54 the support structure 50 of the access floor 10 , The lock section 18 lies with its first restricted area 26 on the cross profile 54 on the bottom. The pawl 14 lies in blocking position on the through the profile leg 32 formed stop biased on. To open the access door 58 must be the pawl 14 against the force of the spring element 38 ( 2 ) from the blocking position as far as in the direction of the arrow 36 be pivoted until an axial overlap of the cross profile 54 and the pawl 14 is canceled. The profile leg 32 can be on the cross profile 54 immediately abut and so as alignment aid in the installation of the first latch closure 10 at the access floor 44 serve. For an operation of the latch closure of above the access flooring is the access door 58 with a Durchgriffsausnehmung 67 provided, which is preferably carried out circular reasons of safety at work.

In the 8th and 9 is the second latch 10 shown in its locked position, in which a fuse the rung ladder 62 in her to the boarding deck 10 or the support structure 50 folded position is effected.

The rung ladder 62 can on one of her sprouts 68 with a holding profile 70 be provided. The holding profile 70 can according to 9 a hook-shaped, here bent, free edge portion 72 that is on the first blocking surface 26 of the barrier section 18 the pawl 14 seated. This is the rung ladder 62 in its folded functional position on the remaining access flooring 10 kept arranged. An undesirable slipping of the holding profile 70 from the first locking surface of the pawl is due to the length of the access flooring 10 backlash-free or substantially play-free hinged attachment of the rung ladder 62 as well as the second latch 10 at the access floor 10 prevented. It is understood that the retaining profile 70 also on one of the spars 74 the rung ladder 62 can be attached. The second latch 10 is here with its mounting section at the bottom of the decking 46 attached. For any necessary height compensation can between the mounting section 12 and the underside of the pad 46 a spacer 66 be arranged. The pad can be another Durchgriffsausnehmung 67 have in order to operational use of the access flooring 44 an operation of in 9 shown latch closure 10 from above the access floor 10 to enable.

According to the in 10 shown embodiment, at least one of the two locking surfaces 26 . 28 , here the second blocking area 28 , the latch 10 also to the axial end 76 of the barrier section 18 be arranged obliquely extending and in the parallel projection together with the pivot axis 24 the pawl an acute angle α with α≤ 90 °, here about 80 °, include. This allows the lock section 18 the rung ladder 62 or its holding profile 70 in the in 10 shown blocking position partially engage behind and particularly reliable in their on the access flooring 44 Secure folded functional position. This allows a particularly safe handling of the access flooring 44 and even high demands on occupational safety are taken into account.

Through the use of two identical universal closures 10 can the ladder deck 44 made easier and cheaper as well as repaired. At the same time, the operating safety of the access flooring 10 due to the identical operation of the two latch locks 10 further improved.

Claims (14)

Pawl closure (10) for a access deck (44), comprising a mounting portion (12) for attaching the latch closure (10) to the access deck (10) and a pawl (14) with a bearing arm (16) and with a locking portion (18), wherein the pawl (14) with its bearing arm (16) via a pin (22) about a pivot axis (24) pivotally mounted on the mounting portion (12), wherein the locking portion (18) has a first and a second locking surface (26, 28) for engaging behind a respective component of the access flooring (10) and wherein the second locking surface (28) from the mounting portion (12) in the axial direction is further spaced and extends from the bearing arm (16) further away, as the first locking surface (26). Latch lock after Claim 1 , characterized in that the two locking surfaces (26, 28) are arranged to extend parallel to each other. Latch lock after Claim 1 , characterized in that at least one of the two blocking surfaces (26, 28), in particular the second blocking surface (28) with respect to the pivot axis (24) of the pawl (14) is arranged non-orthogonally extending. Pawl closure according to one of the preceding claims, characterized in that the first blocking surface (26) and the second blocking surface (28) overlap each other in the axial direction in sections. Pawl closure according to one of the preceding claims, characterized in that the pawl (14) against the force of a spring element (38) is deflected from its locked position. Pawl closure according to one of the preceding claims, characterized in that on the mounting portion (12) a profile limb (32) is formed which extends away in the axial direction of the mounting portion (12) and against which the pawl (14) in its blocking position. A latch closure according to any one of the preceding claims, characterized in that the pawl (14) has an actuating arm (20) extending outwardly from the pivot axis (24) in a radial direction, the actuating arm (20) and the support arm (16 ) of the pawl (14) preferably steplessly merge into one another. Pawl closure according to one of the preceding claims, characterized in that the pawl (14) is an integrally executed molded bending part. Pawl closure according to one of the preceding claims, characterized in that the latch closure (10) is made entirely of metal. Passage covering (44) for a scaffold, with a passage opening (48) which can be closed by means of a pass-through flap (58) which is hinged on the access floor (10), and with a rung ladder (62) located on the access floor (10) between one of the access floor (10) tilted functional position, and one of the access deck (10) folded down functional position is pivotally mounted, the access deck a first latch lock for locking the access door in its the access opening (48) closing the closure position and a second latch (10) for locking the rung ladder ( 62) in its hinged on the access deck (10) folded functional position, wherein the two latch locks (10) are designed according to one of the preceding claims. Passage deck to Claim 10 , characterized in that the two latch locks (10) are designed identical. Passage deck to Claim 10 or 11 , characterized in that the pawl (14) of the first latch (10) is attached to the access door (58) and to secure the access door (58) in its the access opening (48) closing functional position with the first locking surface a cross-section (54) or a covering (46) of the access flooring (10) overlaps. Floor covering after one of the Claims 10 to 12 , characterized in that the pawl (14) of the second latch (10), the rung ladder (62) for securing the rung ladder (62) engages in sections in its folded functional position with its second blocking surface (28). Floor covering after one of the Claims 10 to 13 , characterized in that the pawls (14) of the two latch locks (10) are each formed as a rotary latch.

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