EP2241447B1 - Self-colouring hand stamp - Google Patents

Description

The invention relates to a self-inking hand stamp with a frame made of metal, according to the preamble of claim 1. The frame here has two interconnected by an upper top wall side walls; Furthermore, when used relative to the frame against spring force downwardly movable actuating bracket made of metal is provided, which has two slidable along the side walls of the frame legs, with which a slidably and reversibly disposed within the frame type aggregate is coupled; In the upper part of the frame support projections for a retractable ink pad holder are provided, which protrude inwardly on the inner sides of the side walls of the frame.

Such so-called. (Full) metal self-inking handstamps have long been known, see. US 454 499 A , and appreciated for its robustness and long life. The frame, also called stamp housing, usually consists of a sheet steel part, which is bent according to the cutting or punching out, see. for example too AT 1 185 U1 . Fig. 5 , When you press the hand stamp, so when you create a stamp impression, the operating handle is moved along the attached frame on the frame down, the legs of the U-shaped operating handle along the outer sides of the side walls of the frame are moved. A guide and position assurance is made possible by a mounted on the top plate of the frame tube, which is telescopically inserted into a corresponding tube or the like. Recording in a handle on the operating handle, wherein in the tube usually a helical compression spring is included, see. for example too AT 380 836 B or AT 1 659 U1 , An additional guidance of the legs of the actuating bracket on the frame side walls is further obtained by coupling the bracket legs with a turning axle or axle stubs of the type unit, for example a simple stamp plate or an aggregate with belt types, the ends of this axle or these stub axles are guided in a slot guide in the side walls of the frame; see. also WO 2005/037565 A1 , However, neither this axle guide nor the telescopic tube is intended as the actual guide for the operating bracket on the frame, but are with these components a priori other functions Accordingly, malfunctioning or even jamming or self-locking of the actuating yoke on the housing of the handstamp can definitely occur.

For this reason, previously proposed on the frame hood-shaped guide parts made of plastic have been proposed in the past, see. the aforementioned AT 1 185 U1 or the AT 1 659 U1 to guide the operating bar on the metal frame by just this hood-shaped guide part. In this hood-shaped guide member above the metal frame and a slot for an ink pad holder has been provided. The upper top wall of the frame had to be provided accordingly with a correspondingly large opening for the passage of the stamp types, so that the latter can get into contact with the overlying ink pad in their upper Einfärbestellung.

However, these hood-shaped guide parts bring a significant effort in the manufacture and installation of the hand stamp with it. This is even more true for a steel / plastic composite design of frame and operating bracket, as for example in the AT 501 318 B1 or in the DE 295 21 420 U1 are proposed, where metal parts are accommodated in matching plastic parts. In addition, the large opening in the top wall of the frame affects its strength or stability.

In the aforementioned US 454 499 A already a possibility for a slide-guide an ink pad holder shown directly in the metal frame, wherein support projections are provided by either tabs punched out of the frame side wall and bent inwardly or angles are riveted on the side walls of the frame inside. However, such internally riveted angles may impose constraints on the sizing and mobility of the package during turning and down, except that the attachment of angles in the interior of the punch frame is relatively cumbersome. If the support projections are formed by punched and bent tabs, so an exact manufacturing is necessary, otherwise the ink pad holder either abuts against the bent tabs and can not be properly inserted into the frame, or the hold for the ink pad holder in the upper part of the frame is only loose, so that the ink pad holder can accidentally fall out of the hand stamp. Accordingly, relatively expensive readjustments in the bent tabs are required in practice over and over again.

It is an object of the invention to provide a self-inking handstamp as mentioned above, which allows a simple, nonetheless reliable attachment of an ink pad holder in the upper region of the metal frame of the hand stamp, moreover, the cost of manufacturing and assembly should be kept low ,

To solve this problem, the invention provides a self-inking hand stamp as defined in claim 1 before. Advantageous embodiments and further developments are specified in the dependent claims.

In the present self-inking hand stamp, it is thus provided that the bearing projections are attached to support bodies provided on the outer sides of the frame side walls and project through openings in the side walls.

There are thus provided the support projections for the ink pad holder on separate, externally mounted on the frame elements, wherein the support projections of these elements, ie the support members, project and protrude through openings in the side walls in the interior of the frame. The openings in the side walls can be provided, for example, at the same time when cutting the sheet steel blank for the frame, and the support body can be formed plate-shaped and tight fitting against the outer sides of the side walls. Here, the platelet-shaped support body may be provided in the region of the system of the legs of the actuating bracket on the side walls of the frame and thus form a sliding bearing for the legs on the frame. In the case of the formation of the support body made of plastic, eg POM, ABS or PE, then a smooth running of the legs on the frame is possible, wherein a contact metal on metal is avoided. However, it is also conceivable to fix separate support bodies, for example each with a single support projection, in corresponding openings of the side walls of the frame by latching. The outer supporting or holding body can then be present at a distance from the legs of the actuating bracket.

Either way, it is advantageous for the attachment of the support body in any case if they have latching projections, with which they are simply fixed by snapping in associated locking openings of the frame side walls. For a good positioning and high position stability, it is further favorable if the support projections are provided over the locking projections. Characterized in that then two projections are provided one above the other, which protrude through separate openings (or through a common slot-shaped, elongated opening), a twisting of the respective support body is effectively countered. In a simple embodiment, however, it is also conceivable that the latching projections at the same time form the support projections. Conveniently, the projections have a non-round, e.g. rectangular cross section, so as to counteract a rotation in the latching opening.

As already mentioned above, the support body can be used externally in addition to the storage of the respective bracket leg, and in this context, it is particularly favorable for a guide of the bracket legs on the frame when facing away from the support projections outside of the support body Guide webs are formed for the legs of the actuating bracket. The support body forms in this case at the same time a guide body for the respective bow-leg.

For a particularly good positioning and fixing the position of the support or guide body, it is further advantageous if each support body has an upper flange-like roof projection, which rests against an upper transition region of the side wall to the upper top wall of the frame.

In order to additionally support an ink pad holder in the inserted state and possibly slightly in the inserted Hold position by traction, it is also advantageous if the frame has on a broad side adjacent to the upper top wall web, on the inside of which at least one further support projection for the ink pad holder is provided in its inserted position. It is further favorable, if the further support projection is formed by a cut out of the web or punched out, bent tab. The tab forming the abutment projection on the transverse wall can have an oblique position, ie be directed obliquely upward from its starting point on the transverse wall, so as to ensure a resilient abutment on the edge of the stamp pad holder to the desired extent.

With regard to the desired fixation by latching and optionally the advantageous sliding of the stirrup legs, it is as mentioned of particular advantage if the support body made of plastic, e.g. POM, ABS or PE. The support projections can then, if necessary or desired, during insertion of an ink pad holder slightly down - under elastic deformation - be deflected so as to allow easy insertion of the ink pad holder and holding the ink pad holder by elastic, frictional engagement with the latter.

• die Fig. 1 und 2 einen Selbstfärbe-Handstempel gemäß der Erfindung in Schrägansichten von vorne oben (Fig. 1) bzw. von vorne unten (Fig. 2);
• Fig. 3 eine Schrägansicht dieses Handstempels gemäß Fig. 1 von hinten, mit entferntem Typenaggregat, um den Innenraum des Rahmens des Handstempels zu verdeutlichen;
• die Fig. 4 und 5 Vorderansichten des Handstempels gemäß Fig. 1 bis 3 in der Ruhestellung (Fig. 4) bzw. in der Stempel- oder Abdruckstellung (Fig. 5), wobei Eckbereiche des Stempel-Rahmens aufgebrochen sind, um Details hinsichtlich der Kupplung einer Wendeachse mit dem Betätigungsbügel, der Anlenkung einer das Wenden des Typenaggregats des Handstempels steuernden, schwenkbaren Kulisse, sowie insbesondere des Verrastens eines plättchenförmigen Führungskörpers zu veranschaulichen;
• Fig. 6 eine teilweise aufgebrochene Seitenansicht des Handstempels gemäß Fig. 1 bis 5, zur Veranschaulichung eines Auflager-Vorsprungs im Vorderseitenbereich des Rahmens, zur Abstützung eines Stempelkissenhalters;
• Fig. 7 in den Teilfiguren A bis F einen plättchenförmigen Führungskörper, wie er beim vorliegenden Handstempel zur Führung eines Schenkels des Betätigungsbügels am Stempel-Gehäuse oder -Rahmen vorgesehen ist, in einer Vorderansicht (A), einer Draufsicht (B), einer Unteransicht (C), einer Seitenansicht (D), einer Schrägansicht der Innenseite (E) und einer Schrägansicht der Außenseite (F); und

The invention will be explained below with reference to preferred embodiments, to which it should not be limited, and with reference to the drawings. Show it:

• the Fig. 1 and 2 a self-inking hand stamp according to the invention in oblique views from the top front ( Fig. 1 ) or from the front below ( Fig. 2 );
• Fig. 3 an oblique view of this hand stamp according to Fig. 1 from the rear, with remote type aggregate to illustrate the interior of the frame of the hand stamp;
• the Fig. 4 and 5 Front views of the hand stamp according to Fig. 1 to 3 at rest ( Fig. 4 ) or in the stamp or impression position ( Fig. 5 ), where corner areas of the stamp frame are broken to illustrate details regarding the coupling of a turning axis with the operating handle, the articulation of a turning of the type set of the hand stamp controlling, pivoting link, and in particular the latching of a plate-shaped guide body;
• Fig. 6 a partially broken side view of the hand stamp according to Fig. 1 to 5 to illustrate a Auflager-projection in the front region of the frame, for supporting an ink pad holder;
• Fig. 7 in the subfigures A to F a plate-shaped guide body, as provided in the present hand stamp for guiding a leg of the actuating bracket on the punch housing or frame, in a front view (A), a plan view (B), a bottom view (C), a side view (D), an oblique view of the inside (E) and an oblique view of the outside (F); and

Fig. 8 similar in an oblique view Fig. 1 an alternative embodiment of a hand punch, with modified guide webs for the operating handle legs.

In the Fig. 1 to 6 is a hand stamp 1 with Selbstfärbemechanismus, briefly called self-inking hand stamp 1, illustrated, which has a frame or a housing 2 made of metal and a view in U-shaped actuating bracket 3, also made of metal. The operating bracket 3 has two legs 4, 5, which are guided vertically movable up and down on the outer sides of side walls 6, 7 of the metal frame 2 in the operating position, s. also the arrow 8 in Fig. 1 , At the top of the actuating bar 3, a conventional handle 9 is fixed, which is at least partially hollow inside, inside the handle 9, a pipe socket 10 can be accommodated, which is fixedly attached to the frame 2 on the upper side and for receiving a compression coil spring (not shown), which is supported on the one hand on the upper side of the frame 2 and on the other hand in the interior of the handle 9, so as to the operating handle 3 as shown in FIG Fig. 1 to push up, in the illustrated rest position or non-use position. opposite This spring force, the operating bracket 3 when attaching a stamp imprint on a pad (paper, etc.) by means of a mounted inside the frame 2 type unit 11 (see, for example Fig. 2 and 4 or 5) downwards. The type unit 11 is adjusted during this downward movement of the actuating bracket 3 down and in addition, as is known, turned around its axis by 180 ° to the types of pressure in the rest position on an ink pad 12 in the upper region of the frame. 2 abut on the attached pad holder 13 to swing around 180 ° and move down so that the in Fig. 5 shown impression position is achieved. For this adjustment, the legs 4, 5 of the actuating bracket 3 with the ends of a particular from Fig. 5 apparent turning axis 14 of the type unit 11 (or with the unit assembly laterally projecting stub axles) via known per se Achssicherungselemente 15 coupled. Moreover, a likewise conventional per se, known turning mechanism 16 for pivoting about the type unit 11 is provided, for example, with two pivotally hinged on the inner sides of the side walls 6, 7 of the frame 2 Steuerkulissen elements 17. To guide the ends of the turning axis 14 are in the Frame side walls 6, 7 vertical longitudinal slots 18 are provided.

The turning mechanism 16 can, of course, in another known form, such as in US 454 499 A be shown, realized.

The metal frame 2 is formed from a stamped or cut and bent steel sheet portion, wherein the two side walls 6, 7 are integrally connected by an upper top wall 19 together. At this top wall 19, the pipe socket 10 for the helical compression spring is fixedly attached in the middle in a known manner, for example by riveting. Furthermore, extends at the front of the hand stamp 1, as shown Fig. 1 and 2 can be seen, one of the top wall 19 downwardly standing, strip or web-shaped transverse wall 20, see. also the sectional view in the corner area in Fig. 6 , Wherein this transverse wall 20 extends from one side wall 6 to the other side wall 7 and in the embodiment shown with a transparent plastic bag attached 21 is provided as a viewing window for receiving a stamp form sheet. At their lower sides, in the corner regions, the frame side walls 6, 7 are connected to each other in a conventional manner by rods 22 and thus stabilized in position.

The two legs 4, 5 of the actuating bracket 3 are also made in one piece from sheet steel and thereby connected by a web 23 together, the further one in particular Fig. 1 and 3 apparent slide 24 stores; by engaging in one of a plurality of recesses 25 on the pipe socket 10, the operating bracket 3 can be fixed in a predetermined position relative to the frame 2, as in the case of a type unit 11 with date-type bands or the like., As shown, the type bands can adjust , or in particular, to be able to soak the ink pad 12 with stamp ink.

As far as described so far, the present hand stamp 1 of known type, and it may be unnecessary even more detailed description of the structure and function of the hand stamp 1.

On each frame side wall 6, 7 is now in the present hand stamp 1 outside a one-piece plastic support or -Führungskörper 26 with guide webs 27, 28 fixed to the respective leg 4 and 5 of the actuating bracket 3 and thereby fixed by latching. This support or guide body 26 is, as best of Fig. 7A , E and F emerges, generally platelet-shaped and in particular made of plastic, such as POM, ABS or even PE, molded or injected. On one side, the outside, of this platelet-shaped support or guide body 26, said guide webs 27, 28 are provided for the respective leg 4 or 5 of the actuating bracket 3. On the other side, the inside, on the one hand latching projections 29 are provided for attachment to the respective side wall 6 and 7 and on the other hand support projections 30 for the ink pad holder 13. The locking projections 29 are, as in particular from Fig. 7E emerges hook-shaped, and with these hook-shaped locking projections 29 of the support or guide body 26 in corresponding (latching) openings 31 (s. Fig. 3 and 5 ) of the side walls 6, 7 of the frame 2 fixed by latching. Out Fig. 3 Furthermore, an empty stamp pad holder 13 can be seen, which with its lower edge in this operating position of its two broad-side walls on the support projections 30 of the respective support or guide body 26 (see also Fig. 5 ) rests and it can be similar to a loading or pushed out. For this he can with one out Fig. 3 be apparent grip region 32 may be provided.

Out Fig. 3 as well as out Fig. 6 Furthermore, it can be seen that the front transverse wall 20 extending between the side walls 6, 7 of the frame 2 is partially cut out or punched out, so that bent tabs are formed as further support projections 33 for the one longitudinal side of the stamp pad holder 13. These tabs or projections 33 preferably extend as shown Fig. 3 and 6 seen, obliquely upward from the transverse wall 20, whereby the force with which the tabs 33 press against the ink pad holder 13, can be dimensioned in a simple manner in the appropriate range.

Out Fig. 7 , in the sub-figures B and C to F, it is further seen that the platelet-shaped support or guide body 26 at its top, on the side facing away from the guide webs 27, 28 for the stirrup legs 4, 5, a roof projection 34, with the it rests in the mounted position at the transition from the respective side wall, for example 7, to the upper cover wall 19, cf. also for example Fig. 4 , By this roof projection 34 an additional positive stabilization of the guide body 26 is achieved in its mounted on the frame 2 position.

In a modification of the embodiment according to Fig. 1 to 7 the locking projections 29 and the support projections 30 may also be formed by one and the same projections 29-30, ie the support projections 30 may, for example, on their outside or bottom with corresponding hooks for locking in a corresponding opening in the side wall 6 and Be provided 7 of the frame 2. As a result, the production is facilitated insofar as in the respective side wall only a total of two openings, for two combined projections 29-30, instead of a total four openings, for two locking projections 29 and two support projections 30 are provided. On the other hand, the illustrated embodiment has the advantage of a particularly stable positional fixation of the respective guide body 26 on the frame 2.

Finally is off Fig. 7 , From the sub-figures A, E and F, nor can be seen that the platelet-shaped support or guide body 26 is provided with a downwardly open recess 35. As a result, in the installed state of the support or guide body 26 on the frame 2, space is created for the ends of the turn axis 14 in the upper position of the type unit 11, cf. for example, the representation in Fig. 4 Left. It is off Fig. 4 it can be seen that the control cam member 17 in its upper region, where it is pivotally mounted with a bearing projection 36 in the respective side wall, for example 6, can be flattened or stepped inside, as illustrated at 37, the better place for the ink pad holder 13th to accomplish.

In the embodiment according to Fig. 1 to 7 the respective actuating bow legs 4 and 5 slide flat on the plate-shaped guide body 26, s. in particular the sectional views in Fig. 4 and 5 , Left side, wherein the actual platelet part of the support or guide body 26 also acts as a spacer element between the respective side wall 6 and 7 and the associated legs 4 and 5 respectively. As a result, sliding metal on metal is avoided, and the guide body 26 provide an advantageous, smooth slide for the stirrup legs 4, 5 before.

In Fig. 8 is one opposite Fig. 1 to 7 simplified guidance of the bar arms 4, 5 in the form of a mere side guide with the help of separate support bodies or guide webs 27 ', 28', each of which is made of plastic (.p. POM, ABS or PE) and with latching projections as described above (see the latching projections 29) on the associated side wall, for example 7, of the frame 2 are fixed. Again, the guide webs 27 ', 28' at the same time supporting body for inside bearing projections according to the support projections 30 according to Fig. 7 so as to hold a holder and insertion guide for the ink pad holder 13 (in FIG Fig. 8 not apparent, cf. but Fig. 3 ) to obtain.

The hand stamp 1 according to Fig. 8 Incidentally, in terms of the formation of the frame 2 and the bracket 3, preferably that according to Fig. 1 to 7 , so that a new description can be unnecessary.

Although the invention has been explained in detail above with reference to preferred embodiments, modifications and modifications are possible within the scope of the invention. For example, other types of aggregates than the typeset 11 shown can be used, such as a simple impression plate with fixed text instead of a type aggregate with adjustable type bands, optionally in combination with a fixed text adjacent to the adjustable types. The bent-out from the front transverse wall 20 support projection 33 can also be wider than in Fig. 3 be shown, for example, an extension over half the length of the web 20 would be quite conceivable.

Claims (9)

1. A self-inking hand stamp (1) comprising a frame (2) made of metal and having two side walls (6, 7) which are interconnected by an upper cover wall (19), and further comprising an actuating bow (3) made of metal which, when used, is downwardly movable relative to the frame (2) against a spring force, the actuating bow having two legs (4, 5) which are displaceable along the side walls (6, 7) of the frame (2), said legs being coupled with a type unit (11) that is arranged displaceable and turnable within the frame (2), resting projections (30) being provided in the upper region of the frame (2) for an insertable ink pad holder (13), said resting projections protruding inwards on the inner sides of the side walls (6, 7) of the frame (2), characterised in that the resting projections (30) are mounted on carrying members (26) provided on the outer sides of the frame side walls (6, 7) and extend through openings in the side walls (6, 7).
2. A hand stamp according to claim 1, characterised in that the carrying members (26) have latching projections (29) by means of which they are fixed in associated latching openings (31) of the frame side walls (6, 7) by snapping engagement.
3. A hand stamp according to claim 2, characterised in that the resting projections (30) are provided above the latching projections (29).
4. A hand stamp according to claim 2, characterised in that the latching projections (29) at the same time constitute the resting projections (30).
5. A hand stamp according to any one of claims 1 to 4, characterised in that on the outer side of the carrying members (26) which faces away from the resting projections (30), guiding webs (27, 28) are formed for the legs (4, 5) of the actuating bow (3).
6. A hand stamp according to any one of claims 1 to 5, characterised in that each carrying member (26) has an upper, flange-like roof projection (34) which abuts on an upper transition region from the side wall (6, 7) to the upper cover wall (19) of the frame (2).
7. A hand stamp according to any one of claims 2 to 6, characterised in that the carrying members (26) are made of plastics, such as POM, ABS or PE, e.g.
8. A hand stamp according to any one of claims 1 to 7, characterised in that on a broadside, the frame (2) has a transverse wall (20) arranged to follow the upper cover wall (19), at least one further resting projection (33) being provided on the inner side of said transverse wall for the ink pad holder (13) in the inserted position thereof.
9. A hand stamp according to claim 8, characterised in that the further resting projection (33) is formed by a lug cut out, or punched out, respectively, and bent out of the transverse wall (20).

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