JPH0645092Y2 - Drive frame safety cover edge frame components - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a component for forming an edge frame of a safety cover provided on a driving portion of various industrial machinery.

[Prior Art] Generally, a safety cover as shown in Fig. 6, for example, is provided on the driving part of various industrial machinery to ensure safety, and it is used for industrial products made to order or in small quantities. The safety cover installed on the drive part of the mechanical device is designed according to the shape and size of the drive part each time, and the edge frame 1 formed by bending the iron plate is provided with a metal protective net or a perforated iron plate. It is manufactured by stretching the porous member 2.

The manufacturing process of such a safety cover is only a part of the manufacturing process of the entire machine because it is an accessory of the machine body, but it requires a great deal of work since it is completely handmade. For example, when the edge frame 1 is bent into a predetermined shape, it is very difficult to bend the edging 3 that holds the porous member 2 according to the shape, and a jig such as an angle bender is usually used. If there is no angle bender, it is necessary to cut the edging 3 separately for the corners and connect them by welding. Moreover, the dimension of the steel plate that is the constituent material of the edge frame 1 is generally a standard plate having long sides of 1.8, 2.4, and 3 m, which is cut into a predetermined size and the folded plate is folded. It is processed by bending, for example, when manufacturing a 1 m square edge frame 1, one cutting plate is not dimensionally sufficient, and two cutting plates are butted at two points and welded together. A border frame had to be formed. Therefore, the quality of the finish of such a safety cover often influences the safety and appearance of the mechanical device, and this is the most important reason for the skilled worker to manufacture the safety cover. .

Further, in order to finish the completed safety cover beautifully, it is necessary to apply a paint finish. At that time, the paint loss of the porous member 2 is very large, and most of the manufacturing process may be performed manually by an expert. Therefore, it was extremely difficult to reduce the production cost. Moreover, there is a preconception that such safety covers, which are manufactured in small numbers, are made by hand-working steel plates, and it is judged that the mechanization of processing is limited to a part, so labor saving has been delayed.

[Problems to be Solved by the Invention] An object of the present invention is to enable a safety cover with a beautiful finish to be manufactured easily and inexpensively by an unskilled person.

[Means for Solving the Problems] In order to solve the above problems, the edge frame component of the present invention is the above edge frame of a safety cover in which a porous member is attached inside the edge frame bent into a required tubular shape. Which is a member for constituting a long thin plate made of a thermoplastic synthetic resin, and is continuously provided to a main body portion reinforced with a metal strip plate and at least one end portion in the width direction of the main body portion, An outer support edge for supporting the porous member from the outside, a curved line formed between the main body and the outer support edge for bending the outer support edge, and a position closer to the main body than the curved line. Formed on the
And an inner supporting edge for supporting the porous member from the inner side. [Operation] In the case of manufacturing a safety cover with the above-mentioned edge frame constituent material, the edge frame constituent material is cut into a required length and sequentially bent while being heated by an appropriate heating means and bent into a frame shape, By joining both ends, the outer support edge forms a non-folded edge frame.

Next, a safety cover is obtained by fitting a porous member such as a wire mesh into the edge frame with the inner support edge abutting, and bending the outer support edge inward at the curved line position. You can

Therefore, the safety cover can be easily and quickly manufactured regardless of the skill level of the operator.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention, in which the edge frame component 10 is an elongated plate-like member made of a thermoplastic synthetic resin colored in an appropriate color, for example, a yellowish safety color. And has a main body portion 11 reinforced by a metal strip 12 such as a steel plate, and one end portion in the width direction of the main body portion 11 when assembled as a safety cover (see FIG. 4). Outer side supporting edge 13 for supporting the porous member 19 from the outside is integrally extended via the bending line 14 for bending, and the porous member 19 is provided at a position near the inside of the bending line 14 from the inside. An inner supporting edge 15 for supporting is integrally provided so as to stand upright from the main body 11. The other end of the main body 11 is rounded so as to wrap the metal strip 12, and a protective strip 16 is formed by this.

When manufacturing a quadrangular safety cover as shown in FIG. 4 using the edge frame component 10 having the above structure, the following steps are performed.

First, the edge frame component 10 is cut with scissors or the like so that it is about 10 to 20 mm longer than the total length of the four sides of the safety cover, and the planned bending portion of the cut edge frame component 10 is By repeating the work of bending while heating with an appropriate heating means such as a hair dryer and then cooling and solidifying, the product is sequentially bent according to the dimensions of the manufacturing drawing, as shown in FIG.
Here, when the edge frame component 10 is bent at a predetermined angle, when the synthetic resin is hot, it is strongly pressed against the corner of a steel mold or the like having a sharp corner while the synthetic resin is hot, and after cooling, it is cooled. And solidify. Also, when bending to a relatively gentle curved surface, it may be bent by applying it to a steel pipe or the like having an appropriate thickness. Further, the edge supporting member 15 can be easily bent by cutting off the inner supporting edge 15 in the bent portion 17 as appropriate.

Thus, when the edge frame constituent material 10 is sequentially bent at a predetermined position, both end portions 10a, 10a thereof are overlapped with each other, so that the metal strip 12 in this overlapped portion is peeled from the synthetic resin and cut with scissors or the like. Then, the both ends made of only synthetic resin are joined by an adhesive or by heat welding. As a result, the edge frame 18 in which the outer support edge 13 is not bent is formed as shown in FIG. Both ends of the edge frame component 10
When bonding 10a and 10a, the inner support edge 15 and the outer support edge 1
If the 3s get in the way, cut them out as needed.

Next, the porous member 19 such as a wire mesh is cut according to the inside dimension of the edge frame 18, and the inside of the edge frame 18 is brought into contact with the inside support edge 15 as shown in the upper half of FIG. Then, as shown in the lower half of FIG. 3, the outer supporting edge 13 is bent inward at the position of the curved line 14. At this time, as shown by the chain line in FIG. By appropriately cutting off the outer supporting edge 13 at the corner portion of 18, the outer supporting edge 13
Can be easily bent. Also, the outer support edge 13
If the width is too wide, cut it to a suitable width. The bent portion of the outer supporting edge 13 thus bent is once heated by a heating means such as a hair dryer and then cooled and solidified to complete the safety cover as shown in FIG.

The time required to manufacture a safety cover using the edge frame component 10 is about 1/5 of that required when manufacturing a conventional steel plate.
Is.

When forming a safety cover other than a quadrangle, it can be formed by exactly the same process.

FIG. 5 shows a second embodiment of the edge frame constituting material. The edge frame constituting material 20 is formed by bending curved strips at both ends in the width direction of the main body portion 21 reinforced by the metal strip 22. The outer support edge 23 is integrally extended via the 24, and the inner support edge 25 is integrally protruded at a position near the inner side of the curved line 24 in a state of standing up from the main body portion 21.

Therefore, when the edge frame component 20 of this second embodiment is used,
While the edge frame component 10 of the first embodiment forms a safety cover having a porous member 19 on one side, a safety cover having a porous member on both sides can be constructed.

In addition, the edge frame components 10, 20 as in each of the above examples,
A T-die is used for the die of the extruder, and a thermoplastic synthetic resin is extruded onto the metal strips 12 and 22 to form the coating while coating the metal strips 12 and 22 so that continuous molding can be easily performed. .

[Advantage of the Invention] As described above, according to the edge frame component of the present invention, it is cut into a required size and bent into a tubular shape while being heated by a hair dryer or the like, and the outer supporting edge is edged at the curved line position. By bending toward the inner side of the frame, not only can the entire body be easily bent into a desired tubular shape, but also the perforated plate can be securely sandwiched between the inner supporting edge and the outer supporting edge. Therefore, regardless of the skill level of the worker, the safety cover can be easily and quickly manufactured, and since painting is unnecessary, a safety cover with a beautiful finish can be easily obtained, which reduces the processing cost. It is also possible to achieve a significant reduction. Moreover, since the main body portion is reinforced by the metal strip plate, the strength and shape retention are good.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of an edge frame constituent material according to the present invention, FIG. 2 is a perspective view of an edge frame which is bent, and FIG. 3 is a process of fitting a porous member. FIG. 4 is a sectional view, FIG. 4 is a perspective view of a safety cover, FIG. 5 is a perspective view showing a second embodiment of an edge frame component, and FIG. 6 is a perspective view of a conventional safety cover. 10,20 ... Edge frame component, 11,21 ... Main part, 12,22 ... Metal strip, 13,23 ... Outer support edge, 14,24 ... Curved edge, 15,25 ... Inner support edge, 18 ... Edge Frame, 19 ... Porous member.

Claims (1)

[Scope of utility model registration request] 1. A member for constituting the above-mentioned edge frame of a safety cover in which a porous member is attached inside an edge frame bent into a required cylindrical shape, which is formed of a thermoplastic synthetic resin in an elongated plate shape. And a main part reinforced with a metal strip, and an outer supporting edge for supporting the porous member from the outside, which is connected to at least one end of the main part in the width direction, and the main part and the outer side. A curved line for bending the outer supporting edge formed between the supporting edge and an inner supporting edge for supporting the porous member from the inside formed at a position closer to the main body than the curved line. An edge frame constituent material for a safety cover for a drive unit, which comprises: