JPH0641660Y2 - Paint adhesion prevention cover for H-shaped steel - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a paint adhesion prevention cover used for preventing paint from adhering to an end portion of an H-section steel when painting the H-section steel.

[Prior art]

Generally, H-section steel used as a building steel material is processed to a predetermined size in a factory, and after being subjected to processing such as drilling as necessary, it is painted for rust prevention using a compressor and a spray gun. Is performed. At the time of this coating, the end of the H-shaped steel is joined to another steel material, so it is necessary to secure a non-coated portion. Conventionally, in order to secure an unpainted portion at the end of the H-shaped steel, a piece of gum tape or the like is attached to the end of the H-shaped steel for coating, and after painting, the gum tape or the like is peeled off to form an unpainted portion, or A protective box for covering the H-shaped steel end portion with a galvanized sheet was formed by sheet metal working, and at the time of painting, the protective box was attached to the H-shaped steel end portion to form an unpainted portion.

[Problems to be solved by the device]

However, the formation of the non-painted portion by the conventional gum tape or the like requires precise sticking work in order to accurately form the boundary of the non-painted portion, and it is necessary to form the border by cutting the gum tape with a cutter. there were. Therefore, there was a risk of injury. Further, after coating, the gum tape and the like are peeled off, but this peeling must be done carefully so that the adhesive of the tape does not remain on the H-section steel. In this way, the formation of non-painted parts such as gum tape not only makes the work complicated and time-consuming for craftsmen, but it is impossible to reuse the peeled tape,
There was a drawback that the cost was high. Moreover, the formation of the unpainted part by the protective box of the galvanized iron plate can be used several times, but it is expensive because of the sheet metal processing, and if it is handled roughly, it will be deformed and unusable, and the metal Since it is manufactured, it has a drawback that it is heavy and not easy to use. Further, when the protective box is new, it is handled with care, but with the increase in the number of times of use, it has a drawback in that it is roughly treated with paint and easily damaged. Therefore, the present invention has been made in order to solve the above-mentioned drawbacks, and its purpose is to provide a coating adhesion prevention cover for H-section steel, which is inexpensive, easy to use and excellent in durability, and particularly H-section steel. To provide a paint adhesion prevention cover for H-section steel applied to the flange portion at the end of the.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the H-shaped steel paint adhesion prevention cover according to the present invention comprises an outer cover and an inner cover made of a synthetic resin material, and both covers are opened in three directions having a substantially U-shaped cross section. Is formed into a box shape and has a space into which the web at the end of the H-section steel can be inserted, and the spacing at the tip of the space is set to be smaller than the thickness of the web of the H-section steel. The inner cover is inserted into the outer cover so that a protruding length from the outer cover can be freely set, a slit is provided on the back plate of the inner cover, and the slit is inserted inside the back plate of the outer cover. And a bent edge for guiding and holding the leading end of the side plate of the inner cover inserted into the space of the outer cover, inside the leading end of the side plate of the outer cover.

[Action]

In the above structure, in the space portion of the outer cover and the inner cover,
A web of H-section steel can be inserted and its cover attached to the end of the H-section steel. Since the distance between the tip portions of the side plates of both covers is smaller than the thickness of the web, the paint sprayed from the spray gun is prevented from entering between the tip portion of the cover and the web. The inner cover is slidable in the longitudinal direction with respect to the outer cover and can be expanded and contracted, and the length of the cover can be adjusted according to the width of the H-section steel web. The slit of the back plate of the inner cover engages with the stopper of the back plate of the outer cover, and the tip of the side plate of the inner cover is guided and held by the bent edge of the side plate of the outer cover. The adjustment is smooth and the cover is solid over the entire length regardless of the adjustment amount.

【Example】

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the H-shaped steel paint adhesion prevention cover (hereinafter, simply referred to as a cover) a according to the present invention includes an outer cover 1
And an inner cover 2. Both covers 1 and 2 are made of synthetic resin material,
It can be deformed by applying force and can be restored by removing force. The outer cover 1 integrally has a strip-shaped back plate 1a and rectangular side plates 1b extending in the same direction from both ends of the back plate,
It is formed into a substantially U-shaped cross section, and has a space portion 1c which is open in three directions. As shown in FIG. 7, the space portion 1c is provided for inserting the end portion of the web 10a of the H-shaped steel 10 so that the outer cover 1 can be mounted and held on the end portion of the H-shaped steel web. It is a thing. The distance between the tip portions of the side plates 1b of the outer cover is set to be smaller than the thickness of the web 10b so that the web is retained without dropping after the insertion. The depth of the space 1c matches the width of the unpainted part. The inner cover 2 has a shape and structure substantially similar to the outer cover 1. The members corresponding to the respective parts of the outer cover 2 of the inner cover 1 are indicated by the symbols having the same alphabetical character 2 attached thereto. The depth dimension of the space 2c of the cover 2 also matches the width dimension of the unpainted portion. Then, the inner cover 2 is inserted inside the space 1c of the outer cover 1 with both back plates 1a, 2a and side plates 1b, 2b adjacent to each other, and slides in a direction parallel to the surfaces of those plates. Then, the amount of protrusion of the inner cover 2 from the outer cover 1 is adjusted to allow expansion and contraction of the entire length of both covers. The reason why the total length of both covers 1 and 2 can be expanded and contracted to an arbitrary length in this way is that H-shaped steels of different sizes may be used depending on the construction work, so depending on the width of the H-shaped steel web. This is so that the length of the cover a can be adjusted. Since the inner cover 2 is slidably held in the outer cover 1,
A slit 4 is provided at the center of the back plate 2a of the inner cover 2 in the longitudinal direction, and a stopper 3 formed inside the back plate 1a of the outer cover 1 is loosely inserted in the slit. In order to ensure the stability of the inner cover 2 when sliding, an inward bent edge 5 is provided at the tip of the side plate 1b of the outer cover 1, and the back plate 2a is supported by the stoppers 3. The tip of the side plate 2b of the cover 2 is guided to the bent edge 5. After inserting the web 10a of the H-shaped steel 10 into the spaces 1c and 2c of the inner and outer covers 1 and 2 and attaching the cover, the inner cover 2 is moved to adjust the length of the cover a according to the width of the web. In order to facilitate the above, ear pieces 6 and 7 that can be held by hand are provided on the outside of the back plates 1a and 2a of the inner and outer covers 1 and 2, respectively. If these ear pieces are provided with holes 6a, 7a, pass a finger through the holes,
It can be easily moved with great force. FIG. 7 shows a state in which the cover a having the above structure is attached to the H-shaped steel 10. That is, the cover a is attached to the end of the H-shaped steel web 10a to form a non-painted portion. Therefore, the cover a is applied prior to coating the H-section steel. In FIG. 7, b is the flange 10b of the H-shaped steel end.
It is a cover separately proposed by the present inventor to form an unpainted portion on the cover. The cover b is made of synthetic resin and integrally molded in a box shape. Inside the cover b, a space is provided in which one end of the flange 10b of the H-shaped steel 10 can be stored. Therefore, the width of the space is substantially the same as the width of the flange 10b, the height is substantially the same as the thickness of the flange, and the depth is equal to the length of the unpainted portion of the flange. One end surface of the cover b is open so that the flange 10b can be inserted, and the top surface of the cover b is opened so that the web 10a can be inserted. Reference numeral 8 is an ear piece similar to the ear pieces 6 and 7, and has a hole 8a. After the covers a and b are attached to the unpainted portion of the H-shaped steel 10, painting is performed. At this time, the covers a and b are formed with unpainted portions in order to prevent the paint sprayed from the spray gun from adhering to the H-shaped steel 10. Moreover,
In the outer cover 1, since the bent edge 5 is in close contact with the web 10a, the paint is effectively prevented from entering the space portion 2, and in the inner cover 2, the tip of the side plate 2b is Since it is in close contact with the web 10a, it effectively prevents the paint from entering the space 2c, so that the unpainted state is completely maintained. When the painting is completed, the covers a and b are pulled out by using the ear pieces 6, 7, 8 as a clue. The pulled out covers a and b are stored with the through holes 6a, 7a and 8a provided in the ear pieces 6, 7 and 8 locked by hooks or the like. Since the cover a according to the present embodiment is configured to be mounted on the unpainted portion of the H-section steel 10 with plastic, the boundary of the unpainted surface can be accurately formed only by mounting the cover a. , The space between the tips of the inner and outer covers is H
Since it is smaller than the thickness of the shape steel web, it can be held in that position just by mounting it or even after adjusting the length of the cover, effectively preventing the paint from entering the unpainted part. . In addition, since it can be easily removed, it can be made extremely easy to use. Further, since the cover a is not deformed and has excellent durability, it can be repeatedly used, so that the cost can be reduced. Furthermore, since the earpieces 6 and 7 are provided on the back plate of the inner and outer covers, the total length of the cover can be changed to H by moving using the earpieces.
It can be easily adjusted according to the width of the section steel web. Further, the ear piece can be easily removed by using it as a clue, and moreover, it can be stored by being locked to a hook or the like by utilizing the holes provided in the ear pieces 6 and 7. The boundary of the unpainted portion can be appropriately selected by changing the insertion ratio of the cover a with respect to the H-shaped steel 10. Since the cover is made of synthetic resin, it is possible to easily provide chemical resistance and stain resistance by selecting a resin contained in the paint, a resin that is not exposed to acetone or the like, or a resin that does not easily adhere to the paint.

[Effect of device]

The cover according to the present invention is mounted on the unpainted portion of the H-shaped steel web made of a synthetic resin material so as to be sandwiched from both sides by utilizing the elasticity of the synthetic resin material. Can be fixed to the web. Also,
Since the space on the tip side of the space part of the cover is smaller than the thickness of the H-shaped steel, and the space on the back plate side of the space part of the cover is set to be at least equal to the thickness of the web of the H-shaped steel,
When the protrusion length of the outer cover is set with respect to the inner cover, a guide property is obtained, and furthermore, the tip of the cover is in close contact with the web, and it is possible to prevent the paint from entering the unpainted portion of the web. Further, a slit is provided on the back plate of the inner cover, and a stopper portion that is inserted into the slit is provided on the inside of the back plate of the outer cover, and inside the tip of the side plate of the outer cover, the side plate of the inserted inner cover is provided. Since there is a bent edge that guides and holds the tip,
There is an advantage that the length of the cover can be adjusted stably and smoothly,
It is solid over the entire length regardless of the length of the cover.

[Brief description of drawings]

FIG. 1 is a perspective view of a cover according to the present invention, FIG. 2 is a perspective view showing a state in which the inner cover is stretched and the length of the cover is changed, and FIG. 3 is a perspective view of the same thing seen from the opposite side. 4, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 2, FIG. 5 is a sectional view taken along the line VV of FIG. 2, FIG. 6 is a sectional view taken along the line VI-VI of FIG. 2, and FIG.
It is a perspective view showing the state where it was attached to model steel. a ... cover, 1 ... outer cover, 1a ... back plate, 1b ... side plate, 1c ... space part, 2 ... inner cover, 2a ... back plate, 2b ... side plate, 2c ... space part, 3 ... stop part, 4 ... slit , 5 ... bent edge, 6, 7 ... ear piece, 6a, 7a ... hole, 10 ... H-shaped steel, 10a ... web, 10b ... flange.

Claims (1)

[Scope of utility model registration request] 1. An outer cover and an inner cover made of a synthetic resin material. Both covers integrally form a strip-shaped back plate and rectangular side plates extending in the same direction from both ends of the back plate. And a space portion into which an end web of H-shaped steel having a substantially U-shaped cross section can be inserted, and the space at the tip of the space portion is smaller than the thickness of the H-shaped steel web. The space in the back plate portion of the space is set to be at least equal to the thickness of the H-section steel web,
In the inner cover, a pair of side plates and a back plate of the inner cover are overlapped with the pair of side plates and a back plate of the outer cover, respectively, so that the protruding length from the outer cover can be freely set. It is inserted so that it can be set, and a slit is provided in the back plate of the inner cover, and a stopper part that is inserted into the slit is provided inside the back plate of the outer cover, and the outer cover is provided inside the tip of the side plate of the outer cover. A paint adhesion prevention cover for H-section steel, which is provided with a bent edge for guiding and holding a tip end portion of a side plate of an inner cover inserted into the space.