JPH085032Y2 - Workbench - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workbench made of metal such as aluminum alloy.

[0002]

2. Description of the Related Art Conventionally, as a workbench of this type, as shown in FIG. 7, a pair of left and right groove-shaped aluminum alloy gate frames 21 and 21 are horizontally mounted between upper ends of both frames 21 and 21. One or more plates made of aluminum alloy tread 2
It is known that it is composed of 2 and one cloth frame 23 connecting the legs of the frames 21 and 21.

Each of the frames 21 and 21 is formed by bending one channel member at two locations in the same direction to form a gate shape. The inner flange 24 of the bent portion and the web 25 following it are made into a V shape.
A notch in the shape of a letter, bent so that the notch is on the inside, and the butted webs are screwed together via a connecting plate 26.
It is fixedly connected by 7. In addition, the stepping rod 22 is an extruded mold member, the longitudinal ends of which are inserted into the grooves of the frames 21 and 21.
It is fixed to 21.

[0004]

By the way, in the above-mentioned conventional technique, as shown in FIG.
When a load is applied to A, there is a problem that the tread end 22A bends downward (shown by a two-dot chain line in FIG. 8) and is deformed. Therefore, in FIG. 8, a method of increasing the wall thickness of the tread end 22A to reduce the flexure, or a method of fixing the cauldron receiving member 28 shown by the two-dot chain line in FIG. 8 to reduce the flexure, As shown in FIG. 9, a method has been attempted in which the support frame 2 is divided into a lateral member 28 and a leg member 29, which are combined and connected in a hook shape and a cover 30 is attached to the connecting portion.

However, each of the above methods for reducing the bending of the tread end portion 22A has a problem that the weight is increased and the cost is increased. The present invention has been made in view of the above-mentioned actual circumstances, and the purpose thereof is to have a simple structure that can reliably prevent the deformation of the treads and increase the strength thereof. The purpose of the present invention is to provide a workbench capable of reducing the cost by reducing the thickness of the workbench.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is, the present invention is a metal workbench composed of a pair of left and right gate-shaped support frames and a tread crossed over at least the upper end portions of the left and right frames, each frame having one channel member. Is bent in the same direction at two places to form a gate shape, and a notch portion having a substantially U shape when viewed from the inside facing is provided from one inner flange to the web, and becomes a lateral member of the notch portion. The notch outer flange is bent at a right angle so that the inner flange end is orthogonal to the inner flange end that serves as a leg member and extends toward the outer flange, and the inner flange end that serves as a lateral member causes The bottom surface of the width direction end is supported, and the webs or inner flanges on both sides of the notch of the frame are connected by a connecting plate.

[0007]

According to the present invention, since the widthwise end of the tread is supported by the inner flange end which is a lateral member of the column frame, even if a load acts on the tread end, the tread end is The flexure of the portion is extremely small, and therefore the end of the tread is not deformed or damaged, and the durability is greatly improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show an embodiment of the present invention, in which a workbench 1 is
A pair of left and right gate-shaped strut frames 2, 2 and a tread 3 laterally bridged between the upper end lateral members 2A, 2A of the left and right frames 2, 2.
From one cloth frame 4 fixed between the leg members 2B and 2B of the two frames 2 and 2, a connecting plate 5 and a cloth frame connecting plate 6 that connect the lateral member 2A and the leg member 2B. Made of

The workbench 1 is made of aluminum alloy, and the column frame 2 is a channel-shaped member which is bent in the same direction at two positions in its longitudinal direction to form a gate shape, as shown in FIG. As described above, from the one flange 7 that is the inner side of the gate to the web 8, cutouts 9 and 9 that are substantially U-shaped when viewed from the inside (groove side) facing each other are provided, and become the lateral member 2A of the cutout 9. The notch 9 outer flange 10 is bent at a right angle so that the inner flange end portion 7A is orthogonal to the end portion 7B of the inner flange 7 that is the leg member 2B and extends toward the outer flange 10.

Then, a narrow angle θ1 between the lateral end 2A side web end 8A of the cutout portion 9 of the frame 2 and the flange end portion 7A.
Is an obtuse angle, a narrow angle θ2 with the leg member 2B side web slope 8C following the web end 8A is a right angle, and a narrow angle θ2 between the leg member 2B side web end 8B and the flange end 7B is a right angle. Furthermore, the leg end 2B side web end 8B and the web slope 8C
The narrow angle .theta.1 with .vertline. Is obtuse and is the same as the narrow angle .theta.1 between the web end 8A and the flange end 7A, and the web end 8A surface length and the web slope 8C length are the same.

Therefore, the outer flange 10 is provided with the notch 9
By bending to the side, as shown in FIG. 4, the web end 8A and the sloped surface 8C of the web contact, and the lateral member 2A side flange end portion 7A contacts and is supported on the leg member 2B side web end 8B. Also, it is extended so as to be close to the outer flange 10, and the lateral end 2A side flange end 7A can support the width direction end lower surface 3A of the tread 3 (see FIG. 1). .

A screw hole 11 and a bolt 12 are provided in the column frame 2, and the L-shaped plate-like connecting plate 5 is fixed by a screw 13 screwed into the screw hole 11.
Further, a slip prevention cap 14 is fitted to the lower end of the leg member 2B of the column frame 2. The foot 3 is shown in FIG.
As shown in FIG. 3, the width direction end portion is made of an aluminum alloy extruded shape, and the width direction end portion has a U-shape, and the width direction end portion lower surface 3A comes into contact with and is supported on the flange end portion 7A of the frame 2. A mounting portion 3B having a C-shaped cross section is provided so as to project downward near both ends in the width direction.

Then, the longitudinal ends of the treads 3 are fitted into the grooves of the lateral members 2A of the left and right column frames 2, and the lateral member 2A side web 8 is provided with the bolt holes 12 and the mounting portions 3C. It is fixedly connected by a bolt 14 and a nut (not shown), and can be assembled and disassembled. The cloth frame 4 is a plate shape made of an aluminum alloy, and is fixedly connected by screws 15 and bolts 16 and nuts (not shown) via the connecting plate 6 having a substantially L-shape so as to be assembled and disassembled. .

According to the above-described embodiment, the bent portion of the column frame 2 is provided by the connecting plate 5 in addition to the contact between the web end 8A surface and the web slope 8C, the contact between the web end surface 8B and the lower surface of the flange end 7A. Due to the fixed connection, the strength is significantly improved, and further, the flange end portion 7A extending into the groove supports the width direction end lower surface 3A of the tread 3, and thus the width direction upper surface of the tread 3 When a load is applied to, the deformation is minimized to prevent the deformation, and the durability is improved.

The present invention is not limited to the above embodiment, but can be modified in design as appropriate.

[0016]

As described above, the present invention provides a metal workbench including a pair of left and right gate-shaped strut frames and a tread crossed between at least upper ends of the left and right frames. The frame is formed by bending one channel in two directions in the same direction to form a gate shape. From the inner one flange to the web, a substantially U-shaped cutout is provided when viewed from the inside opposite. The notch outer flange is bent at a right angle so that the inner flange end of the notch which is a lateral member is orthogonal to the inner flange end of the leg member and extends toward the outer flange, thereby forming a lateral member. The inner flange end portion supports the lower surface of the widthwise end portion of the tread, and the webs or inner flanges on both sides of the cutout portion of the frame are connected by a connecting plate. Strength is It is easy to assemble and disassemble because it has a simple structure and no extra parts are required, and the bending of the tread is prevented, increasing the overall strength and reducing the wall thickness of the tread, resulting in cost reduction. Is possible.

[Brief description of drawings]

1 is an enlarged cross-sectional view taken along the line AA of FIG. 2 showing an embodiment of the present invention.

FIG. 2 is a front view of the embodiment.

FIG. 3 is a right side view of FIG.

FIG. 4 is an enlarged view of the inner surface of the support frame of the embodiment.

FIG. 5 is a view showing a cutout shape before bending of the column frame.

FIG. 6 is an enlarged view of a longitudinal end face of the tread according to the embodiment.

FIG. 7 is a perspective view showing a conventional example.

FIG. 8 is a cross-sectional view (corresponding to a cross section taken along line AA of FIG. 2) of a main part of the conventional example.

FIG. 9 shows a main part of another conventional example, and FIG. 9 (a) is a cross-sectional view (corresponding to a cross-section taken along line AA of FIG. 2) of a support frame connecting portion,
(B) is a BB line sectional view of the same figure (a).

[Explanation of symbols]

 1 Workbench 2 Strut Frame 2A Horizontal Member 2B Leg Member 3 Stepper 3A Stepper Width End End Lower Surface 5 Connecting Plate 7 Inner Flange 7A Inner Flange End 7B Inner Flange End 8 Web 9 Cutout 10 Outer Flange

Claims (1)

[Scope of utility model registration request] 1. A metal workbench comprising a pair of left and right gate-shaped strut frames and a tread crossed between at least upper end portions of the left and right frames, each frame being provided with one channel member. It is a gate shape that bends in the same direction at two places.
A substantially U-shaped cutout is provided from the opposite inner side to the web from the one inner flange, and the inner flange end serving as the lateral member of the cutout is orthogonal to the inner flange end serving as the leg member. The notch outer flange is bent at a right angle so as to extend toward the outer flange, and the widthwise end lower surface of the tread is supported by the inner flange end serving as a lateral member. A workbench characterized in that the webs or inner flanges are connected by a connecting plate.