DE8715727U1 - One-hand sawhorse - Google Patents

Description

Description

The invention relates to a very practical
Sawhorse, which is particularly suitable for one-armed people as well as for anyone who is able to saw their own firewood or similar.

Due to its space-saving design (foldable)
It is easy to transport and therefore also ideal for craftsmen.

The sawhorse has always been known as the crosshorse.
It is used millions of times.

After research it was found that only the
Kreuzbock remained.

A disadvantage of the sawhorses used to date is that considerable physical strength must be used to saw with a hacksaw.
Larger hacksaws or two-handed blade saws required two people. Chain saws definitely require two hands and strength, as well as someone to hold the wood in place.

The invention is based on the object of eliminating the above-mentioned disadvantages when sawing the
mentioned type and to use a sawhorse
which is relatively easy to manufacture,
practical and safe in its operation, without much effort and can be operated with just one hand.

This goal is achieved by the sawhorse
for this purpose and aim, has a well thought-out construction, which under points 1 to 5 of the protection claims
is marked.

One-hand combi sawhorse blade

Description

In the drawing, the subject matter of the invention is shown as an embodiment in five forms.

1 Perspective view Assembled for use with hacksaws (A-B) and motor chain saws (A-C ).

1 side view, assembled, with functional illustration 1 front view

1 Grouped representation in three groups: A-T-C decomposed

1 Front and side view
Group ABC dimensioned

1 suggestion for necessary changes to: chains — swords and hacksaws.

The one-hand combination sawhorse consists of three separate components:

A - the main frame

B - the additional frame for hacksaws

C - the additional frame for motor chainsaws

/I-

One-hand combi sawhorse blade 4

The main frame A

is made of square metal tube,

Two front feet (1),

two rear feet (2),

a'' cross brace (3),

two cross braces with saw outlet slot (4)

two diagonal struts (6),

two support horns (7),

two cross braces for the rear feet (10),

two mounting plates (48).

( - For better understanding, I call the front of the frame the side where you stand to saw. - )

Assembling frame A

The front feet (1) are 870 mm long.

One end of both feet is sawn off at an angle - approx. 25°. This means that the feet (1) are tilted backwards by approx. 23°. A slot (12) approx. 120 mm long is milled out on the outside of each of the two bevelled ends for the purpose of adjustable additional feet (11).

At the upper end of the feet (1) on both outer sides, the side walls of the square tube (46) are milled to a length of approx. 140 mm, measured from the upper end of the foot (1).

A hole with a diameter of 9 mm is drilled into each of the inner walls of the square tube - for the purpose of assembling the frame A-B or A-C using the mounting plate (48). The front feet (1) are held together on the inside by means of two cross braces (3) and (4).

Bracing (3): 350 mm long. Both ends are bevelled at 7° and are mounted approx. 450 mm high, measured from the lower end, after which the feet (1) are spread at the bottom with an inclination of 7° per foot.

Bracing (4): 320 mm long. Both ends are bevelled at 7° and mounted approx. 600 mm high so that the slot (5) points upwards.

One-hand combi sawhorse blade

- Tt-xt for assembling the frame &Lgr; -

Now make sure that the distance between the inner top edges of the feet (1) is 250 mm, where the two edges are reference dimensions. From this point, the inclination of the feet (1) is 7° each (inclined outwards).

A support horn (7) is attached to the front of each of the feet (1) at a height of 600 mm.

Between the horns (7) a cross brace (4) is attached approximately in the middle of the length of the horn (7) with the slotted side facing upwards.

A diagonal brace (6) is attached under each of the horns (7). A 9 mm hole is drilled into the left diagonal brace, 100 mm from the top tip, for the safety claw holder (9).

The rear feet (2) are 760 mm long. The upper ends are bent outwards by 7°, measured approx. 150 mm from the top. The lower ends are sawn at an angle of approx. 24°, so that the feet (2) have a forward inclination of 36°.

A long hole (12) is milled out at each of the lower outside ends, approx. 120 mm long.

The upper ends of the feet are sawn off at an angle to form a contact surface (1).

A hinge is attached to the front of the feet (2) below the slope (14). The rear feet are held together by two cross braces (10). The lower brace (10) is 600 mm long, the upper brace 390 mm long. Both ends are bevelled by 17°. They should be arranged so that the inner dimension between the upper edges of the rear feet (2) is 320 mm, with the feet spread outwards and each having a lateral inclination of 17°. The two upper ends of the feet (2) are then attached to the front feet (1) - measured from below on the front feet (1) 630 mm.

The hinges (14) are attached, now frame A must have a total angle of 63° when spread.

I · I ·

One-handed Koip"- ■:>--"'^r ₁ "

Sheet 6

- Text for assembling frame A -

Four additional feet (11) are still manufactured.

Insert these into the lower openings of the feet (1) and (2), set up, secure with screws,

Make safety claws (8) and (9) and attach them to the left support horn (6).

One-hand combi sawhorse blade

Additional frame B (for hacksaws)

Frame B consists of 15 components:

two connecting pieces (16), two extensions (as a frame) (18), a flat brace (19),

a saw hanger holder (20), a saw hanger (21),

two levers (23),

three spacers (24),

a wave (25),

lower spacers (27),

and spacer block (44).

The connecting pieces (16) are approx. 210 mm long. Halfway through the connecting piece (16) is bent at approx. 19°.

The extensions (18) are 510 mm long. The two extensions (18) are assembled using a flat strut (19). The inner distance between the upper ends of the extension (18) is 200 mm. This means that when spread outwards, the part (18) has an inclination of 7° on each side.

At the upper ends of the extension (18), parallel to the flat strut (19), a hole (26) is drilled on the outside of the extension (18) for the shaft (25). The two connecting pieces (16) are inserted into the lower openings of the extension (18) up to the bend. They are welded in place.

A hole must be drilled on the outside of each of the protruding halves of the connection (16), approximately 50 mm from the lower edge of the extension (18) (for assembly with A).

Two levers (23) must be made from flat steel.

The dimensional distance between the lower and upper holes is 710 mm.

The upper holes are 12.5 mm diameter for the shaft (25).

The lower holes are 10.5 mm diameter for saw holder shaft (29).

Three more spacers (24) have to be made, drilled to fit the shaft (25).

One-hand combination sawhorse

Sheet 8

- Text for additional frame B -

A spacer block (44) is fitted to the upper ends of the levers (23), approx. 100 mm from the upper hole, between the two levers.

The appropriate spacers (27) are to be fitted to the lower ends of the levers (18) in alignment with the hole. Fit the appropriate spacer (24) between the levers (18) at the upper hole.

Attach both remaining spacers (22) to the outside of the levers (18) (between the upper holes (26) ), hold behind the flat strut (19), insert the shaft (25), secure the shaft end, attach the saw suspension holder (20) and the hanger (21) to the front side of the strut (19).

19 ■ · · ·

· · ■ ·

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One-hand combi sawhorse blade 9

Additional frame C (for motor chainsaws)

Frame C consists of 14 components:

two connecting pieces (32),

two shaft holder blocks (33),

a flat brace (35),

a hanging holder (36),

a hanger (37),

Plastic sleeve (38), three spacers (39), shaft (40),

two levers (41).

The connecting pieces (32) are approx. 100 mm long (square) and fit into the inside of the square tube of the foot [I] of frame A.

A shaft holding block (33) is welded to each of the upper ends of the connection (32), so that when both shaft holding blocks (33) are in a horizontal position, the connecting pieces (32) have an outwardly spread inclination of 7° per connection (32). A flat strut (35) is attached to the front side of the holder (32), after which the inside dimension between the blocks (33) is 24 mm. Now the connections (32) must fit into the recess (46) in frame A. A saw suspension holder (36) and hanger (37) are attached to the front of the flat strut (35).

A hole is drilled through each of the shaft holder blocks (33), aligned with the flat strut (35) for the shaft (40) - diameter 12.5 mm.

A hole 50 mm deep (9 mm diameter) is drilled on the outside of the connection (32) below the blocks (33) (reference dimension) for the purpose of assembly with frame A.

Two levers (41) are to be made from flat steel. The distance between the upper and lower holes is 210 mm. The upper holes have a diameter of 12.5 mm, the lower holes have a diameter of 10.5 mm.

One-hand combination sawhorse blade 10

- Text for additional frame C -

Three spacers (39): one of them is 30 mm long, the one that is installed between the levers (41) during assembly. The other two are attached to the sides of both levers (41). These are 95 mm long. Line up with the shaft hole, hold it flush between the shaft holder blocks, insert the shaft (40), secure it with the help of the spacers. A spacer with a 10.5 mm hole (drilled through) is attached to the inside of each of the lower holes in the lever (41).

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Single-band combi sawhorse blade

Instructions for use

Unfold the collapsible main frame A , place it on a solid surface using adjustable feet, adjust to the desired height and screw it tight.

Mount additional frame B or C as desired onto the main frame as follows:

Additional frame B for hacksaws

Insert the lower connecting pieces (16) into the upper openings (46) of the main frame A, screw using the mounting plate (48) and tighten the nut. Attach the end of the hacksaw between the bracket (23) and the spacers (27) using the screw shaft (29), secure with a wing nut and hang the hacksaw on the hanger (21).

Additional frame C for motor chainsaws

Insert the connecting pieces (32) into the upper openings (46) of the main frame A, screw using the mounting plate (48) and secure with the nut.

Hang the motor chain saw on the hanger (37) (on the bar. Insert the end of the bar between the levers, ensure that the hole on the bar is aligned with the lower holes on the lever, secure using a screw shaft, screw on the wing nut.

Before the wood to be sawn is placed on the support horns (7), you must ensure that the safety claw (8) hangs freely downwards.

I t I

One-hand combination sawhorse

Sheet 12

- Continuation of the instructions for use -

After the wood has been placed, the safety claw (8) is placed on the wood in such a way that the teeth are drilled into the wood with a strong blow using a tool.

This prevents the wood from twisting during the sawing process.

while

Claims (1)

Sawhorse Sheet 1 Protection claims 1. Sawhorse for sawing wood or similar in a particularly practical way. Characterized in that the sawhorse has a force-supporting pendulum lever arm as well as an adjustable safety claw which secures the wood on the support horns against twisting, and that the sawhorse can be made of wood or metal. 2. Sawhorse according to claim 1 Characterized in that the sawhorse on the main frame] A has two horns (7) as support surfaces. Sawhorse according to claims 1 and 2 Characterized in that the sawhorse has an adjustable claw (8) (9) which secures the wood against twisting. 4. Sawhorse according to claims 1, 2 and 3 Characterized by the fact that the sawhorse is foldable. 5. Sawhorse according to claims 1, 2, 3 and 4 Characterized by the fact that the sawhorse has feet that can be adjusted in height. Ate