EP1976669A1

EP1976669A1 - Trestle, in particular a sawhorse, and worktable frame

Info

Publication number: EP1976669A1
Application number: EP06828889A
Authority: EP
Inventors: Ralf Strauss; Manfred Geier
Original assignee: Irwin Industrial Tools GmbH
Current assignee: Irwin Industrial Tools GmbH
Priority date: 2006-01-23
Filing date: 2006-10-30
Publication date: 2008-10-08
Also published as: DE102006003171A1; WO2007082565A1

Abstract

In a trestle (1), in particular a sawhorse, with a pivot joint (13), with at least two support legs (3, 5) which extend from the pivot joint and which, by means of the pivot joint, can be pivoted relative to one another into a trestle position providing a stable standing position for the trestle on a support base, and with a fixing arrangement (21) by means of which at least one upward pivoting movement of the support legs from said trestle position is blocked, provision is made for at least one of the support legs to be able to pivot upwards with respect to the other support leg about the pivot joint and beyond the trestle position substantially into a horizontal orientation in which the pivoted-up support leg can be set down on, and particularly fastened to, a rest situated higher than the support base.

Description

Working stand, especially sawhorse, and workbench rack

The invention relates to a workhorse, in particular a sawhorse, with a pivot joint, at least two extending from the pivot joint support legs, which are pivotable by the pivot joint in a working jaw position for a stable standing position of the working frame on a Abstellunterlage, such as a floor. The stable standing position is achieved in that the support legs are inclined to each other and support each other in particular via the pivot joint. In the area of the swivel joint at the height of the workbench forms a free upper end, which provides an elongated, beam or rod-shaped work rest, on which the workpieces to be cut can be stored. The working frame is provided with a locking device, by which at least a pivoting of the support legs is blocked from the work jack position.

A sawhorse is known for example from DE 199 38 525 C2. Beyond a pivot joint, a support leg extends upwards. At the free end, it forms a horizontal, beam-shaped workpiece support part, which is height-adjustable with respect to the sawhorse. The maximum spreadability of the support legs is determined by a folding plate. The folding plate is permanently connected to the support legs via a joint.

DE 84 23 345 Ul discloses a collapsible work or workbench with mutually pivotable X-shaped support legs. At the upper spread support legs a worktop is attached. CA 2,245,278 discloses a collapsible trestle having a U or V frame with two support legs and a horizontal base. The U-legs are spread in the saw frame position, with a non-releasably hinged to the U-legs rod limits the Spreizweg.

To form a workbench with a large work surface between two saw blocks, it is known to place on the two saw blocks a correspondingly large worktop. In this workbench construction, it is disadvantageous that the worktop is usually not or only with great effort attachable to the saw blocks. In addition, at construction sites usually only few working blocks, often only one, available, so that the workbench is only with the help of another, compared to the Abstellunterlage increased support to form, which usually does not have the correct height and no mounting option for the worktop provides.

It is an object of the invention to overcome the disadvantages of the prior art, in particular a conventional Arbeitsbbock, in particular sawhorse, with rod-shaped support to improve such that their application is extended, in particular the possibility of forming a workbench is facilitated.

This object is solved by the features of claim 1. Thereafter, at least one of the two support legs on the working jack position is also in a horizontal position about the particular single pivot pivotable, in which the support leg occupies a parallel to Abstellunterlage position and the unaufgeschwenkte support leg inclined to the vertical of the storage pad remains. For this purpose, the locking device, which is intended to block a pivoting of the support legs from the sawhorse position, solved. In the horizontal position, the pivotable support leg can be placed on a support that is raised in relation to the storage support, in particular attachable thereto, in particular to form a workbench or a workbench. The invention teaches that a support leg of the trestle can be converted to a workbench top, or at least to a horizontal support holding a plate. The pivoted-up support leg does not have a floor-supporting function in the workbench condition of the workbench, which function is taken over by the other support leg, but provides a horizontal work surface. With the measure according to the invention, the rod-shaped support of the generic working trestle, in particular sawhorse, is extended horizontally, so that the work support can be converted from a rod-shaped structure in the working post position in a flat work table support when the support leg is in the horizontal position.

It is clear that the term "support leg" also a flat frame construction can be understood, which may have a certain length of support from the pivot to a foot portion and a certain width in order to provide the largest possible work surface area in the horizontal. In this case, the frame-like support leg may already be provided with a full-surface worktop, so that there is a finished work surface in the horizontal position of the support leg. The working trestle according to the invention can be two or have more support legs, wherein at least one of them should be brought into the horizontal position. The pivoted support leg can be stored on a particularly identical workhorse and / or be festfestigbar to form a stable work table.

The working trestle according to the invention may comprise a horizontal working beam which may extend parallel to the pivot axis of the pivot joint and lies substantially at the level of the pivot joint and adjacent thereto. In particular, the aufschwenkbare support leg may have an over the pivot joint also upwardly projecting extension which lies in a plane to the swinging support leg. In this way, a wider work area is available.

The work beam or the work support of the working trestle is used to store heavy or unwieldy workpieces, such as logs to be sawed to an ergonomic height and edit. In addition, the work support can hold a pivoted support leg of another workbench according to the invention, so that a stable and horizontal working table configuration can be created from two workpieces.

Preferably, one of the support legs, in particular the unencumbered support leg, preferably both support legs, in its / its length changeable, in particular provided with a telescopic structure.

In a preferred embodiment of the invention, the support legs in the working block position form an acute angle, in particular in the range of 10 ° to 60 °, in particular 25 ° to 40 °. This acute angle is widened when swinging the support leg to an obtuse angle of more than 100 ° in addition.

According to the invention, a locking mechanism is provided which blocks at least one pivoting back of a pivoted support leg in the saw frame position. In a preferred embodiment of the invention, the locking mechanism is arranged in the region of the pivot joint. Alternatively or additionally, the locking mechanism may be arranged in the region of a foot section in order to ensure a coupling of the foot section to a separate support, such as another working frame. Preferably, the locking mechanism comprises a coupling device on the foot portion, with the pivoted support leg to a separate support, in particular a further working frame preferably of the same construction, for a substantially horizontal worktable position is detected.

In a preferred embodiment of the invention, the coupling device has a first coupling part on the foot portion, which coupling part can be connected to a second coupling part, which is arranged in particular in the region of a pivot joint of another working block, in particular a saw-bone, identical structure. In this preferred measure according to the invention, a modular workbench system is provided in which at least two working blocks, in particular saw blocks, simply a stable work table can be provided without having to use additional components - in addition to the two working blocks.

In the development of the invention, the second coupling part for connection to a first coupling part on the foot portion of another working block, in particular sawhorse, in the region of a pivot joint of the working frame is arranged. In this way, the complete modularity of the working trestle according to the invention is provided by being provided with both the first and the second coupling part.

Preferably, the first coupling part is formed as a quick release. In this case, the first coupling part may comprise an engagement part, in particular of the quick release, which is displaceably seated in a rail formed on the support leg.

In addition, the first coupling part may have a pin, in particular a quick release, which can be inserted and fixed in a recess forming the second coupling part.

In a preferred embodiment of the invention, the first coupling part comprises an engagement part, in particular of the quick release, which is displaceably seated in particular in a rail formed in a support leg.

In a preferred embodiment of the invention, the locking mechanism has at least one rigid connecting member, for example as a plate part with edge recesses for a flexible Engagement connection between the support legs. One of the edge adjustments may form the second coupling part. The connecting member is at least in the horizontal position of the pivoted support leg in such a way with the at least two support legs engageable that a pivotal adjustment of the at least two support legs is prevented from each other.

Preferably, the locking mechanism, which is intended to prevent further spreading of the support legs from the horizontal position or a merging of the support legs, and the locking device which is intended to block the pivoting of the support legs from the work jack position, with the aid of a common arrangement consisting of the connecting member, to the respective support legs can be fastened, and formed corresponding fastening means which realize a releasable attachment of the connecting member to the respective support leg.

In a preferred embodiment of the invention, the rigid connecting member has at least two fastening devices which are fastened, for example, to the connecting member or can be arranged as a separate fastening device for fastening the rigid connecting member. The fastening means are there to fix the connecting member rigidly to the support leg. Preferably, at least one, preferably both, fastening means are releasable so that the attachment point of the connecting member is displaceable along the support leg.

The closer the fastening points of the fastening devices on the respective support leg to the pivot joint, the greater is the angle spanned by the support legs.

Preferably, the connecting member is designed as a plate structure, in particular as a metal plate, which has a plurality of engagement recesses, in particular at its edge. The respective engagement recesses serve to detect the various operating positions of the working trestle, such as the work jack position, the horizontal position and the stowed position in which the support legs are parallel to each other.

In a preferred development of the invention, at least one, preferably both, of the at least two fastening devices is provided with an engagement part. The engagement part may be coupled to the associated support leg in such a way that, in particular in a released position of the attachment device, it can be displaced displaceably along the support leg. can be gert without losing a coupling engagement with the support leg. For example, the engagement part can be guided in a slide-like manner in a rail extending along the support leg. In this case, the rail may extend to a free end of the support leg, so that at the free end an engagement member is inserted. With this arrangement, the engagement part is stored captively along the support leg. With a stopper attachment on the free foot section, the sliding out of the engagement part from the rail can be prevented.

In a preferred embodiment of the invention, at least one, preferably both, of the at least two fastening devices are / is designed as a quick release. In this case, the quick release can have an actuating lever which is arranged on the outside of the connecting member.

The operating lever of the quick release can be coupled in a rotationally transmitting manner with a screw or eccentric structure, which in turn is connected to the slide-like engagement part. The engagement member is seated in the rail formed in the support leg. Upon actuation of the rotary lever, the engagement member is either crazy for bracing with the support leg, whereby a tension between the quick release and the support leg is accompanied.

In a development of the invention, the rigid connecting member may be the coupling device, in particular the second coupling part, for example in the form of an engagement recess. About the engagement recess, a foot portion of another working block in particular identical structure can be coupled to the connecting member. For this purpose, the further working block at its pivoted support portion having a fastening device in the form of, for example, the quick release, which can come into latching engagement into the engagement recess.

In addition, the coupling device may comprise an engagement part which is, for example, a part of the quick release and in particular slidably seated in a rail inserted in a support leg of a further work block.

The at least two support legs may be pivotable toward each other substantially into a parallel position. Furthermore, the invention relates to a workbench frame with at least one work frame according to the invention and a support to which the pivotable support leg of the working frame can be coupled.

The workbench frame may have a further working frame according to the invention, which may be designed as a support for coupling the swinging support leg.

Further advantages, features and characteristics of the invention will become apparent from the following description of a preferred embodiment with reference to the accompanying drawings, in which:

Figure 1 is a perspective view of a workbench frame with two working blocks according to the invention, one of which is shown with a horizontally pivoted support leg to form the workbench.

FIG. 2 shows a perspective detail view of the swivel joint area of the two working blocks of the work table frame according to FIG. 1; FIG.

3 shows a perspective view of a working trestle according to the invention in the work jack position, in which the supporting legs assume an acute angle of approximately 30 °;

4 shows a perspective view of a working trestle according to the invention in the work jack position, wherein the plate structure connecting the support legs is fixed in a coupling position in which a swiveled support leg of another trestle can be coupled to the plate structure;

FIG. 5 shows the working frame according to the invention according to FIG. 3 in a folded-in rest position; FIG. and

Fig. 6 is a perspective view of the erfϊndungsgemäßen working frame according to FIG. 4 in a folded-in rest position.

In FIGS. 3, 4, 5 and 6, a sawhorse according to the invention is designated by the reference numeral 1. The sawhorse 1 has an inverted V in side view in the sawhorse position. Form and has as main components a left support leg 3 and a right support leg 5. The support legs 3 and 5 are executed in the illustrated embodiment as a ladder frame-like frame with two longitudinal struts 7 and 9, in the foot section with a cross bar 11 and at the top with a single pivot joint structure 13 are coupled.

The support legs 3, 5 form at their end facing the floor foot sections 15 and 17 with two Abstellenden.

The swivel joint structure 13 is designed to pivot the support legs 3, 5 relative to one another from a parallel rest or stowed position shown in FIGS. 5 and 6 into the saw-shaft position shown in FIGS. 3 and 4 and according to the invention further into a horizontal position the support legs 3 and 5 form an obtuse angle of about 105 ° to each other. 1 and 2, two working blocks 1 shown form a workbench in which, in a working frame 1, the support leg (5) is pivoted into the horizontal position.

The working frame 1 comprises a locking device or a Spreizbegrenzer 21, which has one or two rigid connection plates 23, which expands on the outside of the support legs 3, 5 area / s and at the edge of three freely accessible engagement recesses 25, 27, 29 has / s so that the connecting plate 23 can assume different functional positions. In addition, the connecting plate 23 comprises a through hole (at 31), through which a bearing pin 31 of a quick release 35 is inserted. To the bearing pin 31, which is attachable to the support leg 3 or 5, the connecting plate 23 is rotatable in the various functional positions and is always with a support leg 3 or 5 captive engaged.

In Figure 3, the connecting plate 23 has only one spreading of the support leg 3, 5 limiting function without sections of the connecting plate 23 project beyond the facing away from the respective support leg 5 and 3 front and / or back of the support leg 3 and 5 respectively ,

Figure 4 shows the captive attachment of the connecting plate 23 via the through hole (at 31) on the right support leg 5. The connecting plate 23 is rotated and found with the quick release 33 on the support leg 5, that the engagement recess 29 open at the top for receiving a matching coupling part (in Fig. 4 not shown) is aligned. In order to realize the spread-limiting function, the connecting plate 23 is fixedly connected to the support leg 3 via the engagement recess 27. In order to displace the protruding portion 32 of the connecting plate 23 into the spread angle range of the support legs 3, 5 (corresponding to FIG. 3), the attachment of the connecting plate 23 can be released via the engaging recess 27 and, after the connecting plate 23 is turned down, the Engagement recess 29 are used for fastening.

The Spreizbegrenzer 21 also has two quick release 33, 35, each comprising an eccentric part not shown in detail and in each case an actuating lever 37, 39, through which the quick release 33, 35 can be actuated. At the eccentric part is a carriage (not shown) coupled force transmitting.

With the quick releases 33, 35 attachments of the connecting plate 23 can be quickly created and repealed, whereby different spreading angle between the support legs 3, 5 can be taken and determined easily and continuously.

An engaging member or carriage is slidably inserted in a rail 41 having an undercut cavity (not shown). The rail 41 extends along the outside of the longitudinal struts 7, 9 of the pivot joint structure 13 to the Abstellenden of the foot sections 15, 17. The rail 41 is formed by a longitudinal strut 7, 9 at least partially forming hollow section with a longitudinal groove 43rd is made, through which a part of the quick release 33, 35 protrudes and connects the eccentric with the carriage. Each support leg 3, 5 has on the outside in each case a longitudinal groove 43. When dissolved quick release 33, 35, the carriage can be moved in the longitudinal groove 43. In this way, different angles of spread between the support legs 3, 5 can be generated without having to accept uncontrolled spreading.

A quick release 33 (FIG. 4), 35 (FIG. 3) is always inserted in the through hole 31 and connected to the rigid connection plate 23.

In Fig. 4, the engagement recess 29 is quick release, wherein the engagement recess 27 is occupied by a quick release. In this configuration, the engagement recess 29 for receiving a cylindrical portion of another quick release 45 is provided in the region of the foot section 15, 17 of a further working block 1 is arranged displaceably, which is shown in Fig. 2 on the right working block.

To pivot the support leg 5 into a horizontal position, the quick release 33 (FIG. 4), 35 (FIG. 3) which is seated in the engagement recess can be released. When pivoting the support leg 5 in the horizontal position slides the carriage of the quick release 33 (Fig. 4), 35 (Fig. 3) within the rail 41, as shown in Fig. 1 and 3 is indicated.

When comparing Fig. 3 and Fig. 1 and 2 it can be seen that the carriage of the quick release 33 comes closer during pivoting of the support leg 5 to the hinge structure 13. In order to avoid swinging back in the horizontal position, the quick release 33 can be tightened again. The quick release 45 on the foot portion 15 serves to be able to engage in the engagement recess 29 of the further shown in Figs. 4 and 1 and 2 sawhorse 1 can. Then, the quick release 45 can be determined to form a stable work table frame by two working blocks 1.

5 and 6, the rest positions and stowage positions of the working frame 1 are shown, in which the support legs 3 and 5 are parallel to each other. As can be seen, the flat connecting plate 23 ensures a space-saving accommodation of the saw blocks, in which the quick release 35 in the recess 27, preferably 29, sits.

The features disclosed in the foregoing description, the figures and the claims may be of importance both individually and in any combination for the realization of the invention in the various embodiments.

LIST OF REFERENCE NUMBERS

Workbench left support leg right support leg, 9 longitudinal struts 1 cross strut 3 pivot joint structure 5, 17 foot sections 1 expansion limiter 3 connecting plate 9 engagement recesses 2 protruding section 3, 35 quick release 7, 39 operating lever 1 rail 3 longitudinal groove 5 quick release

Claims

claims

1. working stand, in particular sawhorse, with a pivot joint, at least two of the pivot joint extending support legs (3, 5), which are pivoted to each other by the pivot joint in a working jaw position for a stable standing position of the working trestle on a parking support, and a locking device by which at least one pivoting of the support legs (3, 5) is blocked from the work jack position, characterized in that at least one of the support legs (5) about the work jack position about the pivot joint relative to the other support leg (3) is pivotable substantially in a horizontal position, in which the pivoted-up support leg (5) can be deposited, in particular fastened thereto, on a support which is raised in relation to the storage support.

2. Trestle according to claim 1, characterized in that the support legs (3, 5) are guided directly to each other via a single pivot joint, so that they form an interface in an angular position substantially coincides with the pivot axis of the pivot joint, wherein the area of the pivot joint forms a free end of the working trestle which provides an elongated, rod-shaped work support.

3. trestle according to claim 1, characterized in that the pivoted support leg (5) forms a substantially horizontal support in particular for a work table, the work support extends horizontally in particular of the elongated, rod-shaped work support.

4. working frame according to one of claims 1 to 3, characterized in that one of the support legs, in particular the Unaufge pivoted support leg, preferably both support legs, in whose / their length is / are variable, in particular a telescopic structure has / have.

5. Trestle according to one of claims 1 to 4, characterized in that the support legs (3, 5) in the working jaw position an acute angle, in particular in a range of 10 ° to 60 °, in particular 25 ° to 40 °, form when pivoting the support leg (5) to an obtuse angle, in particular over 100 ° out extended.

6. working frame according to one of claims 1 to 5, characterized in that a locking mechanism blocks pivoting back of the pivoted support leg (3, 5) in the working post position.

7. working frame according to claim 6, characterized in that the locking mechanism in the region of the pivot joint and / or in the region of a foot portion (15, 17) of the support leg (3, 5) is arranged.

8. trestle according to claim 6 or 7, characterized in that the locking mechanism comprises a coupling device, in particular on the foot portion (15, 17), with which the pivoted support leg (5) to the increased support, in particular to a further workhorse (1) preferably same Structure, is ascertainable.

9. trestle according to claim 8, characterized in that the coupling device has a first coupling part on the foot portion (15, 17) which is connectable to a second coupling part, in particular in the region of a pivot joint of another working block (1), in particular sawhorse arranged is.

10. working frame according to claim 9, characterized in that the second coupling part for connection to a first coupling part on the foot portion (15, 17) of a further working block, in particular sawhorse, in the region of a pivot joint of the working block (1) is arranged.

11. trestle according to claim 9 or 10, characterized in that the first coupling part has a pin in particular a quick release, which is detectable in a recess forming the second coupling part.

12. trestle according to one of claims 9 to 11, characterized in that the first coupling part forms a quick release (45).

13. Trestle according to one of claims 9 to 12, characterized in that the first coupling part comprises an engagement part, in particular a quick release, in particular in a in a support leg (3, 5) formed rail (41) slidably seated.

14. Trestle according to one of claims 6 to 13, characterized in that the locking mechanism comprises at least one rigid connecting member between the support legs (3, 5), at least in the horizontal position of the pivoted support leg (5) with the at least two support legs ( 3, 5) in particular releasably engageable, that a pivoting movement of the at least two support legs (3, 5) is prevented from each other.

15. Trestle according to claim 14, characterized in that the at least one rigid connecting member has at least two fastening means by which the at least one connecting member on the respective support leg (3, 5) is festfestigbar.

16. Trestle according to claim 14 or 15, characterized in that at least one, preferably both, the at least two fastening means is / is releasable.

17. Trestle according to one of claims 14 to 16, characterized in that at least one, preferably both, the at least two fastening means comprises / comprise an engagement part which is so coupled to the support leg (3, 5) that the engagement part in particular in a dissolved position of the fastening device along the support leg (3, 5) can be slidably displaced without losing a coupling engagement with the support leg (3, 5).

18. Trestle according to claim 17, characterized geke nnzei chnet, that the engagement part as a in a longitudinally of the support leg (3, 5) extending rail (41) guided carriage is formed, wherein preferably the carriage in particular continuously along the support leg (3, 5) in the rail (41) can be detected.

19. trestle according to claim 18 or 19, characterized in that the rail (41) extends to a free end of the support leg (3, 5), so that at the free end of the engagement member is insertable.

20. Trestle according to one of claims 14 to 19, characterized in that at least one, preferably both, the at least two fastening means as a quick release (33, 35) is / are carried out, wherein in particular the actuating lever (37, 39) on an outer side of the Link is arranged.

21. Trestle according to claim 20, characterized in that the quick release (33, 35) an actuating rotary lever which is coupled with a rotating or rotary transmission force transmitting, which is connected to an engaging part, in particular the carriage, in particular in a in the Support leg trained rail (41) slidably sits.

22. Trestle according to one of claims 1 to 21, characterized in that the at least two support legs (3, 5) are mutually pivotable towards each other substantially in a parallel position.

23 worktable frame with at least one trained according to one of claims 1 to 22 working frame (1) and a support to which the swing-pivot support leg (5) can be coupled.

24. worktable frame according to claim 23, wherein a further working frame (1) forms the support, which is designed according to one of claims 1 to 19.