JP2003025179A - Safety fence surrounding machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety fence surrounding a machine tool capable of facilitating its installation and attaching of a door for entrance. SOLUTION: An adjuster 5 is provided at a lower end side fringe of a panel and is erected at an adequate height, and a lower end part of the panel is fixed using a screw by a bracket 8 fixed to a floor surface 7. A claw 14 is attached to a side piece 15a on one side of the panel 1, and a slit groove is formed in a side piece 15b on the other side. The claw 14 is engaged with the slit groove of the adjacent side piece 15b of the panel to connect the panels 1, 1 mutually.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety fence standing upright to surround a machine tool.

[0002]

2. Description of the Related Art A safety fence stands around a machine tool such as a machining center and is effective in preventing various accidents that occur during machining. For example, since a machine tool of recent years is automatically operated with a computer, it is not necessary for an operator to always work face-to-face with the machine tool. When the tool is worn or damaged, it can be replaced, the material can be attached to the table surface, or the material can be removed from the table.
Limited to auxiliary work.

As described above, a completely controlled machine tool is capable of cutting a material into a predetermined shape by automatic operation, but with the processing, chips or chips are scattered around, Sometimes there is a risk that the tool will be damaged and some of it will scatter. If the worker is always working face-to-face with the machine tool, it may be possible to detect such a situation and solve it, but when a worker who does not know at all is near or when passing by. There are things like being injured.

Therefore, in a machine tool which is operated completely automatically, a safety fence stands up to cover the surroundings. By the way, in the conventional safety fence, a plurality of panels are erected and the panels are connected to each other, but the lower ends of the panels are screwed to an approximately L-shaped bracket fixed to the floor, and adjacent panels are screwed to each other. It is connected by a stop. Further, the panel is provided with an adjuster at the lower end in order to support the panel at a predetermined height from the floor surface.

The adjusters are provided on both sides of the lower end of the panel, but it is troublesome to adjust the panels so that they do not tilt and screw them to a bracket fixed to the floor, and to connect the panels to each other, and the number of installation steps is large. Become. On the other hand, it is necessary to completely cover the periphery of the machine tool with a safety fence, and to install a door for entering and exiting inside, but with a safety fence that only connects panels, it is inconvenient to install the door, and Opening and closing of the installed door will not be stable and durability will be impaired.

[0006]

As described above, the safety fence of the machine tool has the above-mentioned problems. The problems to be solved by the present invention are these problems, and provide a safety fence that is easy to install and easy to install a door serving as a doorway.

[0007]

The safety fence according to the present invention is constructed by arranging panels so as to cover the periphery of a machine tool. In the present invention, there are two types, one of which is a stud. This is a case of connecting the panels via the other, and the other one is a type of directly connecting the panels without using studs.

In the type using a stud, the stud is screwed to a bracket fixed to the floor and stands upright, and an adjuster for height adjustment is attached to the lower end of the stud. Then, a slit groove is formed on the side surface of the stud, and the slit groove is attached by engaging a tab provided at the panel side end.

A connection is placed on the upper end of the stat to connect adjacent studs to each other, and a reinforcing bar is placed on the connection to connect opposite connections. Then, the entrance door is mounted on a frame body fitted and connected between both studs. The frame body is also attached by engaging a claw with the slit groove of the stud.

On the other hand, in the type that does not use studs,
An adjuster is provided at the lower edge of the panel, a slit groove is formed at the side end on the adjuster side, and a claw is provided at the opposite end. The bracket that vertically erects the panel is directly attached to the panel surface, and the claw provided at the panel side end engages with the slit groove formed at the adjacent panel side end to connect.

A connection is placed on the upper end of the panel to connect adjacent panels to each other, and a reinforcing bar is placed on the connection to connect the opposing connection. Further, the entrance door connects the stud to the panel side end and is attached to a frame body fitted between both studs, and the frame body is also attached by engaging a claw with a slit groove of the stud. This is the same type as when connecting panels via studs. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0012]

EXAMPLE FIG. 1 shows a case where a safety fence surrounds a machining center. The safety fence is composed of a plurality of panels 1, 1, ...
Stands vertically so as to cover the periphery of the machining center. Also, there are two entrance doors 2 and 2 on the safety fence.
Is provided so that you can enter inside. However, the inside of the safety fence can be seen through the peepholes 3, 3 provided in each panel 1, 1 ... Without entering through the entrance door.

FIG. 2 is a partial front view of a safety fence of the type having the studs 4. The studs 4, 4, ... Stand upright at appropriate heights by the adjusters 5, 5 ,.
A connecting member 6 is hung on the upper ends of the connection members 4 ... to connect the adjacent studs 4, 4. FIG. 3 shows the stud 4 standing on the floor surface 7 and the panel 1 attached to the stud 4. An adjuster 5 is attached to the lower end of the stat 4 to support it at an appropriate height, and it does not fall. The lower end of the stud is fixed to the L-shaped bracket 8 fixed to the floor surface 7 with screws.

The upper end of the stat 4 is covered with a joint 6 having a U-shaped cross section, and a reinforcing bar 9 is placed on the joint 6 and fixed by an L-shaped fastener 10. The joint 6 connects the adjacent studs 4, 4, ...
6 are suspended and connected, so that the studs 4, 4 ... And the panels 1, 1 ... Attached to the studs 4, 4 ... Are stable. By the way, slit grooves are formed on both side surfaces of the stud 4, and the tabs 14, 14 ... Provided at the panel side end are engaged and attached to the slit grooves. The viewing window 3 provided on the panel surface is formed by punching a panel plate.

As shown in FIG. 1, the safety fence is provided with a door 2, and FIG. 4 is a longitudinal sectional view and a front view showing the door 2 attached to the safety fence. A gate-shaped frame body 11 composed of both vertical bars 12, 12 and a horizontal bar 13 is fitted between the two studs 4, 4, and the tabs 14, 14 are attached to the vertical bars 12, 12.
... are fixed, and these claws 14, 14 ... engage with slit grooves formed on the side surface of the stud 4. The door 2 is attached to the vertical rail 12 of the frame 11 so as to be openable and closable via a hinge.

FIG. 5 shows a cross-sectional view of the safety fence, in which the panel 1 is mounted between the studs 4 and 4. Both ends of the panel 1 are bent vertically to form side pieces 15, 15
Are formed, the bases of the claws 14, 14 ... Having an L-shaped cross section are welded to the side pieces 15, 15, and the tips are fitted and engaged with the slit grooves formed in the stud. in this case,
The panel side pieces 15 and 15 can be stably attached to the side surface of the stud, and the front surface of the stud and the panel surface are flush with each other.

The same tab 14 as that fixed to the panel side piece 15 is also fixed to the vertical crosspiece 12 of the frame 11, and the tip of the tab 14 is fitted and engaged with the slit groove formed in the stud. The door 2 can be attached to the hinge 16 attached to the vertical rail 12 to open and close. Where the vertical bar 12
The cross-sectional shape of the cross rail 13 is not particularly limited, but as shown in FIGS. 4 and 5, the cross rail 13 may have a shape that makes a door stop when the door 2 is closed.

FIG. 6 shows another form of the connection 17 for mounting on the upper ends of the studs 4, 4, ... For connection. This connection 1
A reinforcing bar 9 is mounted on and fixed to the top of 7, and a fastening tool 10 for fixing the reinforcing bar 9 is screwed to a joint 17. A groove into which a screw head 18 is fitted is continuously formed in the joint 17, and the fastener 10 is moved to an appropriate position along the groove to fix the reinforcing bar 9 at an arbitrary position and screwed. You can do it.

The embodiment shown in FIG. 7 is another form of the connecting member 19 for mounting on the upper ends of the studs 4, 4, ... For connection, and the fastener 10 for screwing the reinforcing bar 9 is at an arbitrary position. It is the same as the embodiment shown in FIG. 6 in that it has a groove so that it can be moved to. However, the connection 19 is integrally formed with the surface member 20 for covering the end surface of the reinforcing bar 9.

In some cases, the safety fence of the present invention does not have the studs 4, 4 ... Between the panels 1, 1 .... In this case, the panels are directly connected to each other. Figure 8
Is a partial front view of a safety fence of a type that does not use studs 4. Panels 1 and 1 are erected at appropriate heights with adjusters 5 and 5, and claws protruding from the panel side edge are adjacent to the panel side. They are connected to each other by engaging with slit grooves formed at the ends. A connection 6 is mounted on the upper ends of the panels 1 and 1 to be connected thereto. FIG. 9 shows the connected form of the panels 1 and 1 standing upright on the floor surface 7. However, an adjuster 5 is attached to the lower end of the panel 1 to support it at an appropriate height, and to prevent it from falling over. The lower end of the panel is fixed to the L-shaped bracket 8 fixed to 7 by screws.

The upper end of the panel 1 is covered with a joint 6 having a U-shaped cross section, and a reinforcing bar 9 is mounted on the joint 6 and fixed by an L-shaped fastener 10. The joint 6 connects adjacent panels 1, 1 ..., The reinforcing bar 9 is connected to the opposing joints 6, 6 by hanging, and therefore the panels 1, 1 ... Can be erected stably. By the way, the claws 14, 14 are attached to one end of the panel 1 so as to project therefrom.
The tabs 14 are connected to each other by engaging the tabs 14, 14 ... In a slit groove formed at the end of the adjacent panel.

FIG. 10 shows a cross-sectional view of the safety fence. The panels 1, 1 ...
14 and a slit groove are connected to each other. Both ends of the panel 1 are bent vertically to form side pieces 15a and 15b, and one side piece 15a has an L-shaped cross section.
The bases of 4, 14, ... Are welded together, and slit grooves are formed in the other side piece 15b. Therefore, the claw 14 on one side,
14 can be connected to each other by engaging with the slit grooves on the other side of the panel side ends which are adjacent to each other. And not only when the panels 1 and 1 are connected in a straight line,
Since b is bent in an L shape, it is possible to vertically connect both panels 1, 1 as shown in the figure.

FIG. 11 shows a door 2 attached to a safety fence.
FIG. 3 is a vertical sectional view and a front view showing FIG. Between the two studs 21 and 21 that are connected to the side edges of the panels 1 and 1 and stand upright, both vertical bars 1
A gate-shaped frame body 11 composed of 2, 12 and horizontal rails 13 is fitted, and the tabs 14, 14 ... Are fixed to the vertical rails 12, 12, and these tabs 14, 14 ... Are formed on the side surfaces of the studs 21, 21. Engage in the slit groove. The door 2 is mounted on the vertical rail 12 of the frame 11 so as to be openable and closable via a hinge 16.

FIG. 12 shows a cross section of the installed door. The same tab 14 as that fixed to the panel side piece 15 is fixed to the vertical bar 12 of the frame body 11, and the tip of the tab 14 is a stud. It fits and engages in the slit groove formed in. The door 2 can be attached to the hinge 16 attached to the vertical rail 12 to open and close.

As described above, in the safety fence of the present invention, the vertically standing panels are provided with the claws, and the claws are connected by engaging the slit grooves formed in the adjacent panels or studs. Yes, the following effects can be obtained.

[0026]

The safety fence of the present invention is constructed by vertically standing panels and connecting the panels to each other or via studs. In the panel, the tabs provided at the side ends are fitted and engaged with the slit grooves formed in the adjacent panels or studs, so that the fence installation work is simple and the installation man-hour is small. Further, it is easy to install an entrance door between both studs, and a gate-shaped frame is fitted and attached between the studs, and the door is mounted on the frame.

At the side end of the panel, there is a side piece which is bent perpendicularly to the surface, and the tab engages with the side piece of the adjacent panel or the side surface of the stud in engagement with the side piece.
There is no gap between the panels or between the panel and the stud, and stable mounting is possible. Furthermore, the upper end of the panel is covered with a joint, and the opposing joint is connected by a reinforcing material, so that the upper end of the panel is stable and becomes a robust safety fence.

[Brief description of drawings]

Figure 1: A safety fence installed around the machining center.

FIG. 2 is a partial front view of a safety fence.

FIG. 3 is a vertical sectional view and a front view of a stud portion of a safety fence.

FIG. 4 is a sectional view and a partial front view of a door attached to a part of a fence.

FIG. 5 is a cross-sectional view of the safety fence.

FIG. 6 is another form of connection for connecting the upper ends of the studs.

FIG. 7 shows another form of connection for connecting the upper ends of studs.

FIG. 8 is a partial front view of the safety fence.

FIG. 9 is a vertical sectional view and a partial front view of the safety fence.

FIG. 10 is a cross-sectional view of the safety fence.

FIG. 11 is a cross-sectional view and a partial front view of a door attached to a part of the fence.

FIG. 12 is a cross-sectional view of the entrance door of the safety fence.

[Explanation of symbols]

1 panel Two doors 3 Viewing window 4 studs 5 adjusters 6 tie 7 floor 8 brackets 9 Reinforcing bar 10 Fastener 11 frame 12 vertical bars 13 Side rail 14 claws 15 side piece 16 hinges 17 Connect 18 screw head 19 ties 20 Surface material 21 studs

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Michio Watanabe             106 Kita-Koriyama-cho, Yamato-Koriyama-shi, Nara Stock             Mori Seiki Co., Ltd. (72) Inventor Satoshi Komatsu             106 Kita-Koriyama-cho, Yamato-Koriyama-shi, Nara Stock             Mori Seiki Co., Ltd. F-term (reference) 3C011 AA15

Claims (4)

[Claims] 1. A safety fence for surrounding a machine tool, wherein a plurality of studs each having an adjuster at the lower end stand upright at an appropriate height, and a lower end portion of the stud is screwed by a bracket fixed to a floor surface. The panel is fixed by attaching a claw to the side piece at the panel side end arranged between the studs, engaging the claw with a slit groove formed on the side surface of the stud, and abutting the side piece on the stud. A safety fence that surrounds a machine tool, characterized in that a tie is mounted on each stud, and a tie is placed on the upper end of each stud to connect the studs. 2. A safety fence for enclosing a periphery of a machine tool, which has an adjuster at a lower edge of a panel to stand up at an appropriate height, and a lower end of the panel is screwed by a bracket fixed to a floor surface. Stop and attach a claw to one side piece of each panel and form a slit groove in the other side piece, and engage the claw with the slit groove of the adjacent panel side piece to bring the side pieces into contact with each other. A safety fence that encloses a machine tool, characterized in that panels are connected together, a connection is placed on the upper end of each panel, and a reinforcing bar is hung between the opposite connections. 3. A safety fence for surrounding a machine tool with a part of an entrance door, wherein a plurality of studs each having an adjuster at a lower end thereof are erected at an appropriate height and fixed to a floor surface. The lower end of the stud is screwed with the bracket and the tab is attached to the side piece of the panel side end located between the studs, and the tab is engaged with the slit groove formed on the side surface of the stud and the side piece. The panel is attached by abutting on the stud, and the gate formwork is fitted between the predetermined studs, and the tabs attached to the vertical bars are engaged with the slit grooves of the studs, and the vertical bars are hinged. A safety fence that encloses a machine tool, in which a door is mounted so that it can be opened and closed via a stud, and a tie is placed on the upper end of each stud to connect them, and a reinforcing bar is hung between the opposite ties. 4. A safety fence for surrounding a machine tool, which has an entrance door at a part thereof, has an adjuster at a lower end side edge of a panel, stands up at an appropriate height, and is fixed to a floor surface. The lower end of the panel is screwed with a bracket, a tab is attached to one side piece of each panel and a slit groove is formed on the other side piece, and the tab is engaged with the slit groove of the adjacent panel side piece. Panels are joined together by abutting the side pieces together, and studs are attached to the prescribed panel side ends, and a gate frame is fitted between both studs, and the tabs attached to the vertical rails are used as studs. It is engaged with the slit groove of the vertical rail, and the door is attached to the vertical rail so that the door can be opened and closed via a hinge. A safety fence that surrounds a machine tool characterized by being hung.