JPS6340042A - Structural bar material - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structural bar having a synthetic resin layer as the outermost layer, and more specifically, the present invention relates to a structural bar having a synthetic resin layer as the outermost layer, and more specifically, the present invention relates to a structural bar having a synthetic resin layer as the outermost layer, and more specifically, the present invention relates to a structural bar having a synthetic resin layer as the outermost layer. The protrusion has a grooved structural bar.

[Conventional technology]

In recent years, the development of synthetic resins has been remarkable, and a wide variety of types, including hard, semi-hard, and soft ones, have been developed. And by taking advantage of the properties of synthetic resins, their uses are extremely diverse1.
It's heavy. It is also used in various structures that were conventionally made mostly of wood or metal materials, such as handrails or supports installed inside or outside buildings, and also as the outermost layer of structural parts of various outdoor facilities. Many rods with layered resin are used.

[Problem that the invention seeks to solve]

However, conventional rods of this type have a structure that is made of a solid resin or a hollow pipe, or a solid or hollow core made of metal or synthetic resin. In any case where the outermost layer is coated with another synthetic resin, the outer surface has no irregularities or has straight ridges formed along the longitudinal direction of the bar.

The former is easy to slip when held in the hand (and scratches caused by pressure such as collisions with foreign objects are very noticeable in appearance).

The straight protrusions on the latter were originally created out of a desire to change the appearance of the former because the surface was too monotonous, but as a result, they ended up being rounded when held in the hand. It has a certain effect as a circumferential anti-slip. However, there is no anti-slip effect in the longitudinal direction of the rod, and especially when it gets wet, water collects in the protrusions and the grooves, making it even more slippery.

By the way, in recent years, not only stairs have been installed at building entrances, but also gentle slopes and handrails have been installed to make it easier for people with weak legs or people in wheelchairs to enter and exit. Perform walking training using handrails. In such cases, the handrail is not just something to hold with your hands to support your body, but to help you move.

Therefore, the bars used for handrails are not only used in the circumferential direction (
It must also be non-slip in the longitudinal direction. None of the conventional bars having a synthetic resin layer as the outermost layer described above are satisfactory in this respect. The present invention solves the above-mentioned drawbacks and provides a bar material having a synthetic resin layer as the outermost layer, which is difficult to slip not only in the circumferential direction (also in the longitudinal direction), and scratches caused by collisions with foreign objects are less noticeable. be.

[Gamma method to solve problems]

To solve the above-mentioned problems 1. According to the present invention, in a bar whose at least the outer circumferential portion is made of synthetic resin, the outer circumferential surface of the bar has a direction inclined with respect to the longitudinal axis of the bar. It is a piece of wood with a ridge or groove formed in it.

〔Example〕

FIG. 1 is a partially detailed view showing an embodiment of the present invention. In this embodiment, the bar 1 is constructed by covering a core body 2 made of a metal pipe with a synthetic resin forming an outer circumference 6. On the outer circumferential surface of the outer circumferential portion 6, protrusions 4 are formed that continuously rotate in one direction at a relatively small pitch.

FIG. 2 is a perspective view showing one example of the use of the bar of the embodiment shown in FIG. 1 as a tree support 5. FIG. In this usage example, continuous rotating protrusions with a small pitch are formed on the outer circumferential surface of the crosspiece of the tree support 5, so that when the tree 7 is tied to the crosspiece with a string, the string gets caught on the protrusion. . In conventional tree supports, even if strings are tightly tied to the crossbars of the tree, if the tree develops mold in the longitudinal direction of the crossbars, the strings may slip on the crossbars and the tree may not function as a support. Also, the string itself may break or become loose during repeated stitching. In the case of the usage example shown in FIG. 2, since the string is caught on the ridge, the string will not slip even if the tree receives force in the longitudinal direction of the crossbar, and the tree can be supported reliably.

FIG. 6 shows an embodiment in which the protrusions shown in FIG. 1 are reversed in rotational direction at the center of the bar. When the bar of this example is used as a crosspiece for supporting a tree, if the tree is placed against the part where the rotation is reversed and tied with string 8, the direction of the string and the direction of the ridges will match on both sides of the tree, making it even more convenient. It is.

The bar shown in FIG. 1 is constructed by covering a core of a metal pipe with a synthetic resin that forms the outer periphery, but in the present invention, a pipe-shaped core made of synthetic resin is used. However, it is also possible to adopt various configurations such as those described below. Figure 4A shows a bar made entirely of synthetic resin up to the center, Figure 4B shows a hollow synthetic resin pipe, and Figure 4C shows a solid core made of metal or synthetic resin. Figure 4D shows a metal pipe core covered with synthetic resin, and another synthetic resin pipe formed on top of it to form the outer periphery. The outer periphery of a metal pipe core is made of synthetic resin, and only the protrusions are roughly formed on the outer periphery of another synthetic resin. FIG. 4F shows a metal core having a relatively small diameter, such as a metal core having a thickness that can be bent by hand, and coated with a synthetic resin. Although various other configurations are possible, in the present invention, it is sufficient that the outer peripheral part of the bar is made of synthetic resin (although the configuration of the central part does not matter. The protrusions may be integrally molded with the outer circumferential portion at the same time, or as shown in FIG. 4E (
Only the protrusions may be formed later on the outer circumferential surface of the outer circumferential portion. Note that any of soft materials, hard materials, and semi-hard materials can be used as the synthetic resin, and is appropriately selected depending on the use of the bar material. Furthermore, in the case of laminating synthetic resins, it is of course possible to use a suitable combination of these materials. If a core is used, it is also possible to use an adhesive between the core and the synthetic resin coated on top of the core.

FIG. 5 shows an embodiment with a rectangular cross section, in which a metal core 11 is coated with an outer peripheral part 12 made of synthetic resin, and a protrusion 1
6 is integrally molded with the outer peripheral portion 12 at the same time. The bar shown in this example can also be obtained by sizing a bar having a circular cross section as shown in FIG. 1, for example.

FIG. 6 shows another embodiment in which the width of the protrusions 21 is increased and grooves 22 are formed between the protrusions. The width of the protrusion, or in other words, the width of the groove, is determined as appropriate depending on the application.

In the present invention, the protrusions or grooves that are inclined with respect to the longitudinal axis of the bar and are missing in one direction do not need to be formed under the same conditions over the entire length of the bar, but may be formed according to each application. It may be formed in necessary parts to exhibit functions such as the above-mentioned anti-slip effect.

On the way, I reversed the direction of the slope and made T stiffness, changed the angle by 7 and made 1 stiffness,
Alternatively, it is possible to use a combination of linear protrusions or grooves parallel to the axis of the bar, or it is also possible to provide a smooth surface without providing protrusions in unnecessary areas.

Fig. 7A shows an example in which the slope is relatively gentle and continues in one direction, Fig. 7B shows an example in which the slope is steep and continues in one direction, and Fig. 7C shows a waveform in the necessary parts and a waveform in the other parts. As a straight line parallel to the axis of the bar, one wide comb and one narrow comb are arranged alternately depending on the width of the groove. Fig. 7D shows an example of a straight line combination with various inclinations, Fig. 7E The figure shows an example in which waveforms and straight lines parallel to the bar axis are alternately repeated.
Fig. 7F shows an embodiment in which a part has corrugated protrusions or grooves, and the other part has a smooth surface.

FIG. 8 is a side view showing one example of the bar material according to the embodiment shown in FIG. 7B, which is used as a handrail installed in a gently sloping passage. In this case, since the protrusions are highly inclined with respect to the axis of the bar, the handrail has sufficient anti-slip effect in both the circumferential direction and the longitudinal direction. You can expect it. Of course, handrails are installed on regular stairs.

It can also be used as a balcony handrail. Using handrails along the long corridors of the hospital will make it safer for patients with weak legs to walk alone or use wheelchairs.

Particularly when used for handrails installed outdoors, water accumulates in the grooves between the ridges on the upper hand of the bar, unlike conventional ridges that are parallel to the axis of the bar, even in rainy weather. There is no such thing as becoming more slippery.

FIG. 9 shows an embodiment of the bathroom handrail 62 shown in FIG. 7C.
This is an example of how it was used. Wave-shaped protrusions are provided on the crossbars 63 and vertical bars 64, which provide a non-slip effect in both the circumferential and longitudinal directions, making it safe for people with weak legs as well as regular people to use these handrails. You should be able to get in and out of the bathtub, or stand up in the bathtub, to prevent accidents such as falls.

Note that the curved portion 65 connecting the horizontal bar 66 and the vertical bar 64 has a straight protrusion.

FIG. 10 shows an example in which the embodiment shown in FIG. 7C is used as a handrail 36 for a Western-style toilet.

FIG. 11 shows the embodiment shown in FIG. 7E as a washbasin handrail 6.
Please give an example of how it was used in 7. In this case, the linear protrusion portion prevents slippage in the circumferential direction, and the waveform protrusion portion with a large rise prevents slippage in the longitudinal direction. (1) Even if a person using a wheelchair rests their upper body on the crossbar 68 when washing their face, it may fall off)
There is no need to worry about it slipping, and you can move your body safely by holding the vertical bar 18'Y with your hand without slipping.

FIG. 12 is a perspective view showing one example in which the embodiment shown in FIG. 7D is used as a car stopper installed at a parking lot or park entrance. In this case, the anti-slip function is not particularly required, but the grooves provide an aesthetic appearance as a pattern on the surface of the support, and also make it difficult to see scratches on the surface caused by collisions with foreign objects.

FIG. 16 shows an example of the embodiment shown in FIG. 7F, which is slightly modified and used as a drying rack. (Cover rope) The crossbar 41 is provided with a continuous single wave-shaped protrusion, and the vertical bar 42 is a smooth surface without protrusions. FIG. 14 further shows an example in which the bar biman hole of the present invention is used for a ramp. Furthermore, the 16th
In Figures 14 and 14, the specific shape of the protrusions is omitted.

The relationship between the above-described embodiments and usage examples is not limited to the above-mentioned relationship, and a bar having a protrusion Z in an appropriate manner can be used depending on the purpose of use. For example, if we apply the idea of alternately providing wide and narrow ridges as shown in Figure 7C to the vertical tree support of the tree in Figure 2 or the rods used for ramps, etc. in Figure 14, The anchoring effect of the part embedded in soil or concrete is improved, and the design is also excellent.

〔Effect of the invention〕

As explained above (in the present invention, at least the outer peripheral portion of the bar is made of synthetic resin), and on the outer circumferential surface of the bar, there are protrusions or grooves that are inclined in relation to the axis of the bar.
Because of this, it has a non-slip effect not only in the circumferential direction of the bar but also in the longitudinal direction, and can be used in a wide range of applications such as various types of handrails or ramps that require safety, and even clothes drying racks. The bar material can be provided.The ridges or grooves on the bar form a pattern on the surface of the bar material, which improves its aesthetic appearance and also makes scratches caused by collisions with foreign objects less noticeable.Therefore, it can be used in parks, etc. This makes it easy to use as a support for outdoor facilities or a car stop.

[Brief explanation of drawings]

FIG. 1 is a partial detailed view showing an embodiment of the present invention, FIG. 2 is a perspective view showing an example of its use, FIG. 6 is a partial front view showing another embodiment of the invention, and FIG. Figures 4F to 4F are cross-sectional views showing various types of the present invention, Figure 5 is a cross-sectional view of an embodiment with a rectangular cross-sectional shape, and Figure 6 is a cross-sectional view of an embodiment in which the ridges are widened and grooves are formed between them. Cross-sectional views of the embodiment, Figures 7A to 7F
The figure is a partial front view showing another embodiment of the present invention, and Figs. 8 to 14 are perspective views showing various usage examples of the bar according to the present invention. 1... Bar material 3... Outer periphery 4...
... Protrusion 22 ... Mizohata 3 concave
, 77 He 4A diagram S1LBU! J +4C concave strand 4D concave 4E concave stem 4F diagram base 5 diagram 7A with rotary opening tail 7B roho 11 diagram L72 diagram

Claims (1)

[Claims] In a structural bar whose at least an outer peripheral portion is made of synthetic resin, a protrusion or groove extending in a direction oblique to the longitudinal axis of the bar is provided on the outer circumferential surface of at least a portion of the longitudinal direction of the bar. A structural bar material characterized by being formed.