DE202023103555U1 - Stapler with additional components - Google Patents

Abstract

Stapler (100; 200) for placing staple needles on pipes or the like, containing
- a setting device (110, 120; 210, 220) for pressing staple needles into a surface;
- an additional component in form
a) a magazine (130; 230) for feeding staple needles to the setting device (110, 120; 210, 220), and/or
b) a pressure weight (140) for exerting pressure on staple needles in a direction of movement, and/or
c) a base (150; 250) for supporting the stapler on a surface, characterized in that the additional component (130, 140, 150; 230, 240, 250) contains at least two components.

Description

The invention relates to a stapler for placing staple needles on pipes, for example underfloor heating systems.

A stapler of the type mentioned at the beginning is, for example, from DE 10 2019 001 312 A1 known. Such staplers have at their core a setting device for pressing in essentially U-shaped stapler needles (cf. DE 20 2021 103 329 U1 ) in a subsurface as well as additional components, in particular a magazine for feeding the stapler needles, a pressure weight for pushing the supplied stapler needles and / or a base for stably placing the stapler on the floor. In known staplers, such additional components are manufactured in one piece or in one piece, typically made of plastic in an injection molding process.

Against this background, the object of the present invention was to provide a stapler with improved properties in terms of manufacturability and usability.

This task is achieved by a stapler with the features according to claim 1. Advantageous refinements are contained in the subclaims.

• - Eine Setzeinrichtung zum Eindrücken von Tackernadeln in einen Untergrund, beispielsweise in eine Isolierplatte aus Schaumstoff. Die Setzeinrichtung ist in der Regel eine rein mechanische Vorrichtung, sie kann jedoch auch Hilfsenergien nutzen und dazu beispielsweise elektrische Bauteile enthalten.
• - Eine Zusatzkomponente, welche mit der Setzeinrichtung zusammenwirkt. Die Zusatzkomponente kann dabei in Form mindestens eines der folgenden Teile vorliegen:
  1. a) Eines Magazins zum Zuführen von Tackernadeln zur Setzeinrichtung.
  2. b) Eines Druckgewichtes zum Ausüben eines Druckes auf Tackernadeln in eine Bewegungsrichtung.
  3. c) Eines Standfußes zum Abstützen des Klammergerätes auf einem Untergrund.

The stapler according to the invention is used to place staple needles on pipes or the like and contains the following components:

• - A setting device for pressing staple needles into a surface, for example into an insulating board made of foam. The setting device is usually a purely mechanical device, but it can also use auxiliary energy and contain electrical components, for example.
• - An additional component that interacts with the setting device. The additional component can be in the form of at least one of the following parts:
  1. a) A magazine for feeding staple needles to the setting device.
  2. b) A pressure weight for exerting pressure on staple needles in one direction of movement.
  3. c) A base to support the stapler on a surface.

The stapler described is characterized in that the additional component contains at least two components.

The two components of the additional component are, by definition, independent units that each function independently of the other component. Typically, the components are originally separate, separate components that were connected to one another (reversibly or irreversibly) when the additional component was manufactured. The additional component is therefore generally not designed in one piece.

The direction of extension can usually be determined on the additional component of the stapler. For example, the magazine extends in the direction of a row of interconnected stapler needles when they are in the magazine (for feeding the stapler needles in the direction of the setting device). The printing weight contains as an excellent direction the direction of movement in which it moves during its use to advance the staple needles. The base typically extends from an attachment point parallel to the floor, so that this also defines an excellent direction of extension. In the general case, the direction of extension can be defined as the longest distance that runs entirely within the additional component.

With regard to the direction of extension of the additional component described above, it is preferably the case that the components of which the additional component consists also extend completely or at least to some extent (preferably at least 25%, particularly preferably at least 50%) in this direction of extension.

The stapler according to the invention has the advantage that the manufacturability of the additional component is simplified, since commercially available semi-finished products can be used for the components. This can avoid having to produce a separate tool, such as an injection mold, for the entire additional component. The modular manufacturability of the additional component also makes it possible to respond more flexibly to customer requests and to provide various embodiments relatively easily. Furthermore, repairing the additional component is made easier because simply replacing a damaged component is often sufficient and the entire additional component does not have to be replaced.

According to a preferred embodiment, at least two of the components of the additional component consist of different materials, for example different plastics. This makes it possible to choose the optimal material for the respective function of the component, and there does not have to be a single material as a compromise for the entire additional component.

If the additional component is a magazine, the part of the magazine used to guide staple needles can have a substantially T-shaped cross section or a substantially H-shaped cross section (also referred to as a “double T-shaped cross section”). The cross section is placed in a direction perpendicular to the direction of extension of the magazine. The shapes of the magazine described are, on the one hand, very simple and, on the other hand, sufficient for the secure guidance of U-shaped stapler needles. The individual straight components of the cross-sectional shape (“horizontal” and “vertical” bars of the cross-section) typically represent units that are realized by separate components. A relatively wide central strip can be provided in the magazine, which extends during operation between the legs of a U-shaped stapler needle and on one or both end faces of which crossbars are attached for further guidance of the stapler needles.

According to a further development of the embodiment of the magazine described above, a cross bar of the cross section has a thickness of less than approximately 10 mm, preferably less than approximately 5 mm. If a series of stapler needles connected to one another, for example by welding, adhesive tape or the like (cf. FR 2961882 B1 ) is pushed onto the magazine, such a row usually tends to curve in the longitudinal direction (so-called “banana effect”). This can cause the row on a straight magazine to jam. However, the described small thickness of the crossbar provides maximum scope for the curvature of the row of staple needles, so that the magazine has a high level of functional reliability.

If the additional component is the printing weight, this can preferably be made up of at least two layered bodies. These bodies can be connected to one another by plug-in mechanisms, by gluing, by screwing or the like. Producing the printing weight in this way has the advantage that the size and strength of the weight can be easily adjusted individually by appropriately choosing the number or material of the bodies.

A pressure weight can also be shaped in such a way that it is captively connected to the magazine by positive locking. For example, if the magazine has a T-shaped or H-shaped cross section as described above, the printing weight can have a correspondingly shaped recess, which fits positively around the crossbar.

The base can preferably have at least one wing, which is movable relative to the rest of the stapler (in particular to the setting device). Typically, the base has two such wings, which are arranged mirror-symmetrically to one another on the setting device. The mobility of the wings can be achieved, for example, through an elastic construction. Optionally, the two wings can also be connected to one another in one piece, so that the additional component is in one piece overall, but conceptually and functionally consists of two components. The advantage of a movable wing is that it can move out if necessary when the stapler is used in tight spaces, such as near walls or corners.

The invention further relates to a stapler with a setting device and a magazine, the magazine being arranged in a casing. The stapler can optionally be designed in one of the ways described above. In particular, the casing can represent an additional component which contains at least two components.

• 1 eine perspektivische Ansicht des Klammergerätes gemäß einer ersten Ausführungsform;
• 2 eine Seitenansicht des Klammergerätes von 1;
• 3 eine Frontansicht des Klammergerätes von 1;
• 4 eine Aufsicht auf das Klammergerät von 1;
• 5 eine Seitenansicht, Frontansicht und Aufsicht auf ein Klammergerät gemäß einer zweiten Ausführungsform.

The invention is explained in more detail below with the help of the attached figures using exemplary embodiments (shown with some exemplary dimensions in millimeters). This shows:

• 1 a perspective view of the stapler according to a first embodiment;
• 2 a side view of the stapler from 1 ;
• 3 a front view of the stapler from 1 ;
• 4 a view of the stapler from 1 ;
• 5 a side view, front view and top view of a stapler according to a second embodiment.

• - Eine Setzeinrichtung bestehend aus einem Setzkopf 110 und einem Stempel 120, welcher einen Handgriff 121, eine Verbindungsstange 122 und eine Feder 123 enthält. Über den Stempel kann im Setzkopf 110 ein Druckstück (nicht dargestellt) nach unten bewegt werden, um eine Tackernadel in den Untergrund einzudrücken.
• - Ein Magazin 130, welches eine Reihe von leicht trennbar miteinander verbundenen U-förmigen Tackernadeln (nicht dargestellt) aufnehmen kann, um sie nacheinander dem Setzkopf 110 zuzuführen.
• - Ein Druckgewicht 140, welches am Ende einer (vertikal verlaufenden) Reihe von im Magazin befindlichen Tackernadeln aufgelegt wird, um durch sein Eigengewicht die Reihe in Richtung des Setzkopfes zu drücken.
• - Einen Standfuß 150, welcher einen stabilen aufrechten Stand des Klammergerätes 100 auf einem Untergrund ermöglicht, wenn dieses nicht im Einsatz ist.
• - Einen Verbindungsteg 160 zur stabilen Verbindung der Setzeinrichtung 110, 120 mit dem Magazin 130.

That in the 1 until 4 Stapler 100, shown as a first exemplary embodiment of the invention, essentially comprises the following components:

• - A setting device consisting of a setting head 110 and a stamp 120, which contains a handle 121, a connecting rod 122 and a spring 123. A pressure piece (not.) can be placed in the setting head 110 via the stamp shown) can be moved downwards in order to press a stapler needle into the surface.
• - A magazine 130, which can hold a series of U-shaped staple needles (not shown) that are easily separable from one another in order to feed them one after the other to the setting head 110.
• - A pressure weight 140, which is placed at the end of a (vertical) row of staple needles in the magazine in order to press the row towards the setting head using its own weight.
• - A stand 150, which enables the stapler 100 to stand in a stable, upright position on a surface when it is not in use.
• - A connecting web 160 for the stable connection of the setting device 110, 120 to the magazine 130.

The magazine 130, the printing weight 140 and the base 150 represent examples of additional components of the stapler 100, which are advantageously made from two or more components.

Thus, the magazine 130 can contain as a component a flat middle part 131 which is S-shaped in plan view, along the longitudinal end faces of which a guide bar 132 and an end bar 133 are arranged as cross bars. The connection between these crossbars 132, 133 and the middle part 131 can be done, for example, by screws. Furthermore, the middle part 131, guide bar 132 and/or end bar 133 can each be made from semi-finished products by simple processing steps such as cutting, bending and the like. In this way, it is possible to produce the magazine cost-effectively and, on the other hand, to be able to flexibly change the design at any time, for example according to customer requirements. Furthermore, different materials that are optimal for the respective purpose can be used for the components of the magazine.

In general, all suitable materials can be used for the components of the stapler 100, in particular plastics (e.g. PC, PMMA, POM, PA, or PVC), metals (e.g. aluminum), or composite materials/composites.

The described structure of the magazine results in it having an H-shaped cross section relative to its longitudinal extent. The thickness of the guide bar 132 is relatively small, for example in the range of approximately 2 mm to 4 mm. This allows a row of staple needles to have a relatively strong curvature (“banana effect”) without this leading to jamming on the straight magazine 130. The latter thereby achieves a high level of functional reliability.

The printing weight 140 represents a further additional component, which advantageously consists of several components. In particular, the pressure weight 140, as shown, can consist of a plurality of plate-shaped bodies stacked one above the other, which are connected to one another by one or more screws. The plates can be made of different materials, in particular plastic and/or metal. The weight can be easily adjusted individually thanks to the number and type of plates.

The stand 150 represents a further additional component, which advantageously consists of two (or more) functionally independent components. In the case of the base 150, the components can in particular be two wings 151, 152 projecting from the setting device, which, due to their design as separate components, can move independently of one another and relative to the rest of the stapler 100. Such mobility is achieved, for example, by the elasticity of wings 151, 152 made of plastic. Optionally, it is conceivable that the two wings on the stapler are also connected to one another (for example in one piece), although they nevertheless act and are viewed as separate components.

As in particular in the supervision of 4 can be seen, the wings initially extend within the floor plan (vertical projection) of the stapler 100 from the setting head 110 in the direction of the magazine 130, in order to then spread vertically outwards below the magazine. The wings 151, 152 therefore only protrude beyond the base area of the stapler in the area below the magazine, so that they generally do not interfere with the working area of the setting head 110. However, if the stapler needs to be brought close to a wall or corner of the room, the wings 151, 152 can be easily bent to the side due to their elasticity and independent design so as not to hinder the use of the stapler.

In 5 a second embodiment of a stapler 200 is shown, with a front view on the left (analogous to 3 ), on the right a side view (analogous to 2 ), and below a supervision (analogous to 4 ) are shown. Identical or similar components as in the first embodiment are each given reference numbers increased by “100”.

The stapler 200 differs from the first embodiment essentially in that the magazine 230 is completely covered by a casing 234, 235, which only leaves the inlet for staples on the top of the magazine free. In particular, the vertical branch of the magazine 230 is arranged in a casing channel 234.

Furthermore, the lower curved section of the magazine 230 including the setting device 210 is preferably arranged in a casing 235. The connecting web 260 can also have a closed casing.

The casings mentioned ensure that the stapler looks attractive and the internal components are protected from contamination.

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102019001312 A1 [0002]
• DE 202021103329 U1 [0002]
• FR 2961882 B1 [0013]

Claims (8)

Stapler (100; 200) for setting stapler needles on pipes or the like, containing - a setting device (110, 120; 210, 220) for pressing stapler needles into a surface; - an additional component in the form of a) a magazine (130; 230) for feeding staple needles to the setting device (110, 120; 210, 220), and/or b) a pressure weight (140) for exerting pressure on staple needles in a direction of movement, and/or c) a stand (150; 250) for supporting the stapler on a surface, characterized in that the additional component (130, 140, 150; 230, 240, 250) contains at least two components. stapler (100; 200). Claim 1 , characterized in that at least two components of the additional component (130, 140, 150; 230, 240, 250) consist of different materials. Stapler (100; 200) according to at least one of the preceding claims, characterized in that the part of the magazine (130; 230) used to guide staple needles has a substantially T-shaped or H-shaped cross section. stapler (100; 200). Claim 3 , characterized in that a crossbar of the cross section has a thickness of less than approximately 10 mm, preferably less than approximately 5 mm. Stapler (100; 200) according to at least one of the preceding claims, characterized in that the pressure weight (140) is constructed from at least two layer-shaped bodies. Stapler (100; 200) according to at least one of the preceding claims, characterized in that the pressure weight (140) is captively connected to the magazine (130) by positive locking. Stapler (100; 200) according to at least one of the preceding claims, characterized in that the base (150; 250) has at least one wing (51, 52) that is movable relative to the rest of the stapler. Stapler (200) according to at least one of the preceding claims, characterized in that the magazine (230) is arranged in a casing (234, 235).

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