JPH0611740Y2 - Flexible protective frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a flexible protective frame for protecting a moving part and a fixed part of a machine tool or the like, or a hose, a cable or the like connecting the moving parts.

<Prior Art> A conventional flexible protective frame will be described with reference to FIG.

A conventional flexible protective frame of this type is configured by connecting a plurality of units 60 in a chain shape. The unit 60 has a pair of side plates 61 facing each other and a connecting plate 62 that connects the pair of side plates 61. Connecting pin 611 on the side plate 61
And a connecting hole 612 is opened.
Connect the connecting pin 611 of the side plate 61 of the adjacent unit 60 to the connecting hole 612.
The units 60 are connected to each other by being fitted to. Incidentally, reference numeral 63 in the drawing denotes a lid which is stretched between the opposite side plates 61, and is openable and closable around a fulcrum 64.

<Problems to be Solved by the Invention> The conventional flexible protective frame described above has the following problems.

That is, since each unit is connected by fitting the connecting pin and the connecting hole, if the flexible protective frame is used for a long period of time, the connecting pin and the connecting hole will gradually wear due to repeated bending, and the connected state will be impaired. There is.

The present invention was created in view of the above circumstances, and an object thereof is to provide a flexible protective frame that can withstand long-term use.

<Means for Solving the Problems> A flexible protective frame according to the present invention is a flexible protective frame formed by connecting a plurality of units with a wire,
The unit has a pair of facing side plates and a connecting plate that connects the pair of side plates at a lower end portion of the side plate, a main body formed in a substantially concave shape in a front view, and one side plate of the pair of side plates. A lid hinged to the main body at the upper end of the main body, a through hole is formed in the substantially central portion of the side plate from the front to the back of the main body, and the wire is provided in the through hole. It has been inserted.

<Operation> A hose or the like is stored in each unit, that is, in the flexible protection frame. One end of the flexible protective frame is fixed to a fixed part such as a machine tool, and the other end is fixed to a moving part such as a machine tool with a mounting bracket. The flexible protective frame changes its bent state as the moving part moves. That is, the contact state with the side plate of the adjacent unit changes around the corner of the side plate. When the flexible protective frame is in the extended state, the vertical sides of the side plates of the adjacent units are in contact with each other. If the flexible protective frame is bent,
The hypotenuses of the side plates of adjacent units are in contact with each other.

<Embodiment> An embodiment according to the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a unit constituting a flexible protective frame according to a first embodiment of the present invention. FIG. 1 (a) is a front view with a lid closed, and FIG. 1 (b) is a lid. FIG. 2 is a front view of the main body forming the unit, FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a left side view. FIG. 3 (d) is a right side view, FIG. 3 is a drawing of a lid constituting the unit, FIG. 3 (a) is a front view, FIG. 3 (b) is a plan view, and FIG. The bottom view, the same figure (d) is a left side view, the same figure (e) is a right side view, FIG. 4 is a sectional view taken along the line AA of FIG. 2, and FIG. 5 uses this flexible protective frame. FIG. 6 is an explanatory view showing a state in which the flexible protective frame is extended and bent, and FIG. 7 is a schematic side view of the flexible protective frame according to the second embodiment of the present invention.

The flexible protective frame according to the present invention comprises a plurality of units.
It is configured by connecting 10 with wires 20. The unit
Reference numeral 10 is composed of a main body 11 and a lid 12 hinged to the main body 11.

The main body 11 is made of synthetic resin or the like having an insulating property and is formed in a substantially concave shape in a front view. That is, the pair of opposing side plates 111
And the connecting plate 112 that connects the opposite side plates 111 at the lower part are integrally formed. The side plate 111 is formed in a substantially wedge shape. That is, the side plate 111 has a vertical side 111a,
It has a slanted side 111b inclined with respect to the vertical side 111a, and in the vicinity of an intersection where the vertical side 111a and the slanted side 111b intersect, that is, at a substantially central portion, a through hole 111c for inserting the wire 20 is provided in the main body.
11 are opened from the front to the back. Also, on the other hand, that is, on the upper end of the left side plate 111, a screw hole 111e is formed.
A recessed portion 111d is formed therethrough. Furthermore, on the other hand,
That is, between the vertical sides 111a of the right side plate 111, there is formed an opening 111f in which a locking portion 111g facing inward is formed. A screw hole 112a is formed in the center of the connecting plate 112 (see FIGS. 2 (a) to 2 (d) and FIG. 4).

The lid 12 hingedly coupled to the main body 11 is formed in a substantially rectangular shape in a plan view, and one end in the longitudinal direction has a projection 121 through which a screw hole 121a penetrates, and the other end has a claw 122 directed outward. Are molded respectively. Further, a ridge 123 is formed in the center of the back surface of the lid 12 across the width direction (Fig. 3 (a)-
(See (e)). The convex portion 121 fits into the concave portion 111d of the main body 11 and is stopped by the screw 30 inserted into the screw holes 111e and 121a. The claw 122 is formed at a position corresponding to the opening 111f in a state where the lid 12 hinged to the main body 11 is closed, and a locking portion 122a corresponding to the locking portion 111g is formed outward. Has been done.

A partition plate 13 is provided between the connecting plate 112 and the lid 12 in FIG. This partition plate 13 is screwed to the connecting plate 112 with a screw hole 112a, and a groove (not shown) corresponding to the projecting vein 123 of the lid 12 when the lid 12 is closed is formed at the tip thereof. However, this partition plate 13 is not always necessary, but when it is used for two bare wire feeders or the like that are wired from the output transformer to the heating coil in a high-frequency heating device, avoid contact between bare wires. It is convenient because you can do it.

The flexible protective frame according to the present invention is composed of a plurality of units 10 as described above. That is,
By inserting the wire 20 into the through hole 111c of the main body 11, the units 10 are connected to each other to form a flexible protective frame. A piano wire is suitable as the wire 20 for connecting the units 10, but other wire may be used as long as it is a wire material that is strong against tensile force and is flexible.

A mounting bracket 15 for mounting the flexible protection frame to the moving section 42 and the fixed section 41 of a machine tool or the like is attached to an end portion of the flexible protection frame.

Next, the operation of the flexible protective frame according to the present invention will be described.

The lid 12 of each unit 10 is opened and a hose or the like is stored in the flexible protection frame. The lid 12 includes the engaging portion 111g of the main body 11 and the claw 122.
The locking portion 122a of the above is locked by snap action. One end of the flexible protective frame is fixed to a fixed portion 41 of a machine tool or the like, and the other end is fixed to a moving portion 42 of the machine tool or the like with a mounting member 15. With the movement of the moving portion 42 (in the direction of the white arrow shown in FIG. 5), the flexible protective frame changes its bent state. That is, the contact state with the side plate 111 of the adjacent unit 10 changes around the intersection of the side plates 111. When the flexible protective frame is in the linear state (range indicated by arrow A in FIG. 5), the vertical sides 111a of the side plates 111 of the adjacent units 10 are in contact with each other (see FIG. 6 (a)). When the flexible protective frame is in the bent state (the range of arrow B shown in FIG. 5), the oblique side 1 of the side plate 111 of the adjacent unit 10
11b are in contact with each other (see FIG. 6 (b)).

This flexible protective frame can be bent only on the hypotenuse 111b side as shown in FIG. 6 (a). On the other hand, there is an advantage in that there is no slack in the range of arrow A shown in FIG.

Next, the embodiment of FIG. 2 according to the present invention will be described with reference to FIG.

The second embodiment is different from the flexible protection frame of the first embodiment described above only in the shape of the side plate 111 of the unit 10, and the other parts are the same, so the same reference numerals as those in the first embodiment are used. The description of the same parts is omitted.

The side plate 111 of the unit 10 according to the second embodiment is formed in what is called a hexagonal mold as shown in FIG. Wire
The through hole 114 through which the 20 is inserted is provided in a substantially central portion of the side plate 111, that is, a short vertical side 115c between the oblique side 115a and the oblique side 115b. The flexible protective frame in which the side plate 111 is formed in a hexagonal shape bends downward when the oblique sides 115b contact each other and bends upward when the oblique sides 115a contact each other, as shown in FIG. 7 (b). That is, the flexible protective frame according to the second embodiment can be bent in two directions.

<Effect of the Invention> The flexible protective frame according to the present invention is a flexible protective frame formed by connecting a plurality of units with wires,
The unit has a pair of facing side plates and a connecting plate that connects the pair of side plates at a lower end portion of the side plate, a main body formed in a substantially concave shape in a front view, and one side plate of the pair of side plates. A lid hinged to the main body at the upper end of the main body, a through hole is formed in the substantially central portion of the side plate from the front to the back of the main body, and the wire is provided in the through hole. It has been inserted. Therefore, unlike the conventional flexible protective frame that connects a plurality of units by fitting the connecting pin and the connecting hole, the connecting portion does not wear due to long-term use. That is, the connected state of the flexible protective frame is not damaged.

In the flexible protection frame that is bent only in one direction as in the first embodiment, the flexible protection frame does not unnecessarily loosen, so that the flexible protection frame is not caught in the machine tool or the like. It's safe.

Further, if the side plate is formed in a substantially hexagonal shape as in the second embodiment, the side plate can be bent in both directions, so that the degree of freedom regarding the installation of the flexible protective frame and the like becomes higher.

[Brief description of drawings]

FIG. 1 is a front view of a unit constituting a flexible protective frame according to a first embodiment of the present invention. FIG. 1 (a) is a front view with a lid closed, and FIG. 1 (b) is a lid. FIG. 2 is a front view of the main body forming the unit, FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a left side view. FIG. 3 (d) is a right side view, FIG. 3 is a drawing of a lid constituting the unit, FIG. 3 (a) is a front view, FIG. 3 (b) is a plan view, and FIG. The bottom view, the same figure (d) is a left side view, the same figure (e) is a right side view, FIG. 4 is a sectional view taken along the line AA of FIG. 2, and FIG. 5 uses this flexible protective frame. FIG. 6 is an explanatory view showing the flexible protective frame in a stretched and bent state, FIG. 7 is a schematic side view of the flexible protective frame according to the second embodiment of the present invention, and FIG. Is subordinate It is a perspective view of a flexible protective frame. 10 …… Unit, 111 …… Side plate, 111a …… Vertical side, 111b
…… Slope, 111c …… Through hole, 112 …… Coupling plate, 20 …… Wire.

Claims (3)

[Scope of utility model registration request] 1. A flexible protective frame in which a plurality of units are connected by wires, wherein the unit has a pair of facing side plates and a connecting plate that connects the pair of side plates at a lower end portion of the side plates. It has a main body formed in a substantially concave shape as viewed, and a lid hinged to the main body at the upper end of one of the pair of side plates. A through hole is opened from the rear side to the back surface, and the wire is inserted through the through hole. 2. The flexible protective frame according to claim 1, wherein the side plate is formed in a substantially wedge shape when the main body is viewed from the side. 3. The flexible protective frame according to claim 1, wherein the side plate is formed in a substantially hexagonal shape when the body is viewed from the side.