JP6076679B2 - Handrail Kasagi - Google Patents

Description

  The present invention relates to a handrail headwood.

  As described in Patent Document 1, for example, as described in Patent Document 1, a handrail shellwood having a cross-sectional shape in which a covering covering a headwood core material is opened to one side by an opening portion narrower than the headwood core material is a soft synthetic material. The covering material (covering body) made of resin is softened by warming with hot water, and then the opening portion (opening portion) is widened to cover the headboard core material so as to swallow the headboard core material.

JP 2004-11408 A (page 4)

  However, since the covering needs to be heated as described above, there is a drawback in that the work of assembling the covering onto the headboard core is extremely troublesome.

  That is, it takes time to heat the covering, and when using hot water as described above, a hot water pot must be prepared, and when using a heater as a heating means instead of hot water, a heater is prepared. Must. In particular, handrail headboards are often installed on the site over long distances. In this case, considering the flexibility of the connection between the headboard core and the bracket, the headboard after the bracket is attached to the headboard at the construction site. Since it is desirable to take the procedure of covering the covering, the construction period becomes longer due to the above-mentioned heating time, and many hot water tanks or the like must be brought to the construction site.

  Furthermore, as described above, when softened by heating, that is, when the covering is made of a thermoplastic resin, if it is heated too much, for example, it becomes too soft and it becomes difficult to reverse the mounting to the headboard. Depending on the above problem and the penetration time into hot water, the covering body may be discolored or deteriorated. Therefore, it is necessary to manage the temperature of the hot water and the time for immersing the covering body in hot water.

  In this regard, when the covering is formed of, for example, a sponge, it seems that it is not impossible to assemble the cover without any heating. However, in this case, since the strength is structurally low, it may be torn or cut, and the handrail may not function sufficiently to support the weight of the user in the first place.

  The present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide a handrail head board that can easily assemble a cover to a head board core material.

According to the present invention, the object is
A handrail headwood formed by covering the headboard core material 1 with a covering 3 having a cross-sectional shape opened to one side by an opening portion 2 narrower than the headboard core material 1,
Each of the headboard core material 1 and the covering body 2 is formed in a substantially C-shaped cross section that is open to one side, and the cover body 2 has an open end edge as an open end edge of the headboard core material 1. It is locked and attached to the headboard core material 1,
And the said covering 3 is locally formed in the open end edge part by the main-body part 4 formed by adjusting the addition amount of the plasticizer to the preform | base_material consisting of a synthetic resin, and a semi-rigid synthetic resin. And the surface treatment layer 5 covering the main body part 4 and the locking part 6 are formed in three layers , and the opening part 2 can be spread and spread over the headwood core material 1 with fingers at room temperature. This is achieved by providing a handrail cap that is formed flexibly.

  The handrail coping is formed by covering the coping core material 1 as a strength member with a covering 3, ensuring a predetermined strength by the coping core material 1, adjusting the appearance of the covering 3, and a material having good touch comfort. By forming the covering 3, the appearance and touch feeling can be easily improved. The covering body 3 has a cross-sectional shape opened to one side by an opening portion 2 narrower than the headboard core 1, and the opening portion 2 is widened and deformed so as to be swallowed from the opening portion 2. The core material 1 can be easily covered.

In addition, the covering 3 is deformed so as to push and spread the opening 2 with fingers at room temperature so that the covering 3 can be covered with the covering 3. Is not required. This flexibility can be enhanced by adjusting the amount of plasticizer added to the base material made of synthetic resin with respect to the main body portion 4 of the covering 3 , that is, the strength necessary for a handrail to be qualitatively flexible. There is no shortage of structure immediately. This flexibility also makes it possible to provide cushioning to the handrail headboard.

The main body 4 can be formed by adding a plasticizer in an amount corresponding to the flexibility described above to the synthetic resin. When polyvinyl chloride (PVC) is used as this synthetic resin, it can be manufactured at a relatively low cost due to its versatility, and has excellent functions such as flame retardancy, durability, and chemical resistance. It becomes possible to demonstrate. Furthermore, if the amount of the foaming agent added is adjusted to such an extent that the strength can be structurally ensured, it is possible to form the covering 3 with a foamed synthetic resin material. It is also possible to adjust.

The covering 3 described above is formed by covering the main body portion 4 with the surface treatment layer 5, and the surface treatment layer 5 can efficiently improve the appearance and feel of the handrail cap. In addition, this eliminates the need for the main body 4 to take into consideration the appearance and the touch, and it is sufficient to ensure only the flexibility, so that the degree of freedom in selecting the material and the productivity can be increased.

  The surface treatment layer 5 can be formed by using an appropriate material in consideration of the appearance and touch feeling of the balustrade, but when the surface treatment layer 5 is formed of a material harder than the body portion 4, for example, Compared with the case where the portion 4 is exposed to the outside, it is possible to reduce the feeling of tack when gripping the handrail headwood. In addition, if the surface of the surface treatment layer 5 is roughened to give it a rough surface, it can give a high-class appearance to the handrail head and the hand gripping the handrail head may be sweating or included in the main body 4. Even if the plasticizer oozes out to the handrail head surface, that is, bleed occurs, it is possible to suppress contact with hands such as sweat, so that the touch is hardly deteriorated.

Further, if the surface treatment layer 5 is formed by adding an additive such as a rubber matting material to a base material made of a synthetic resin, or if the surface is coated, the above-described bleed or the surface of the covering 3 is formed. It is possible to prevent problems such as a change in tactile sensation and a tendency to get dirty. In addition, when it is desired to color-treat the surface of the core material 1, it is sufficient to add a colorant to form the surface treatment layer 5. In this case, the amount of the colorant is larger than that of the main body 4 having a larger volume. Can be suppressed. Since the above surface treatment layer 5 is formed simultaneously with the main body portion 4, the surface treatment layer 5 can be easily fixed to the main body portion 4 and the manufacturing efficiency of the covering 3 can be improved.

Flexibility of the cover 3 described above, depending on various conditions of the widening deformation amount such as to obtain the opening 2, in the case of PVC as described above, the main body portion 4 which is above mentioned in hardness JIS-A Type 40- If it is in the range of 60, it seems that it can be deformed to some extent manually. In this case, the polymerization degree of the resin is in the range of about 1000 to 3000. In addition, when expressed in terms of the amount of plasticizer added, it would be in the range of about 100-180 parts by weight. It should be noted that the plasticizer is not a phthalate ester-based one that is often added to PVC in order to suppress bleeding or migration, but a polymer-based low-volatile one such as so-called TOTM is used. Further, the above-described bleed and the like can be further suppressed by adjusting the degree of kneading at the time of molding the PVC.

Therefore, according to the present invention, since the headboard core material 1 can be manually covered with the covering 3 at normal temperature, the workability can be greatly improved. Moreover, by forming the main body part 4 so as to be covered with the surface treatment layer 5, it is possible to efficiently improve the appearance and feel of the covering 3, that is, the handrail headwood.

The fixing of the coping core 1 of the cover 3 described above, each of the bevel Kishinzai 1 and the cover member 3 is formed in substantially C-shaped cross section which is open on one side, the opening of the enclosure 3 an edge portion to engage with the open edge portion of the coping core 1 is made. Thereby , it becomes possible to latch the latching | locking part 6 by the elastic return after the widening deformation | transformation of the open part 2 mentioned above, and it becomes possible to simplify a fixing operation | work. Further, the engagement portion 6 by forming integrally molded semi-rigid synthetic resin, be flexible is enclosure 3 as described above, good fixing strength to coping core 1 of the enclosure 3 Manufacturing efficiency can also be made favorable, ensuring.

  Furthermore, if the latching | locking part 6 mentioned above is hooked, ie, if it latches in the inner-outer direction of a handrail headboard at the open edge part of the headboard core material 1, area | region other than the latching | locking part 6 will be the cover 3 by the softness | flexibility. In this case, the locked state is not easily released even if it is slightly deformed, so that the fixed state can be made more stable. When the outer shape of the covering 3 is circular or substantially circular, the direction substantially perpendicular to the tangent may be set as the locking direction.

On the other hand, when the cover 3 is fixed to the headboard core 1 using an adhesive, the headboard 1 is exposed to the outside through the opening 2 of the cover 3 and the boundary between the headboard core 1 and the cover 3. If the adhesive injection hole 7 communicated with is formed, the adhesive can be supplied after the covering 3 is put on the headboard core material 1, so that the operation is simplified. In this case, when the gap 8 that promotes the diffusion of the adhesive by capillary action is set at the boundary between the headboard core material 1 and the covering 2, the diffusion of the adhesive that is hidden by the covering 3 and cannot be visually confirmed is further reduced. It can be realized reliably . Fixed to coping core 1 of the covering body 3, a locking by the locking section 6 described above, when used in combination with adhesive bonding, it is possible to further improve the fixing strength.
According to the present invention,
A handrail headwood formed by covering the headboard core material 1 with a covering 3 having a cross-sectional shape opened to one side by an opening portion 2 narrower than the headboard core material 1,
The covering body 3 is formed flexibly so that the amount of plasticizer added to the base material made of synthetic resin is adjusted, and the open portion 2 can be spread and spread over the headwood core material 1 with fingers at room temperature. It is also possible to provide handrails.

  As is clear from the above description, according to the present invention, the assembling work of the handrail headboard can be extremely simplified.

It is a figure which shows the handrail using the handrail headwood which concerns on this invention, (a) is a principal part longitudinal cross-sectional view, (b) is an enlarged view of the handrail headboard part in (a). FIG. 3 is a cross-sectional view of a main part showing a covering 3. It is a principal part longitudinal cross-sectional view explaining the mounting | wearing operation | work to the headboard core material of a cover, and is a figure which shows the state which deform | transformed the cover body so that an open part may become wider than a headwood core material. It is a principal part longitudinal cross-sectional view explaining the mounting | wearing operation | work to the headboard core material of a coating | covering body, (a) shows the state which locked one side of the latching | locking part of the coating | covering body which has opened the open part to the headboard core material. (B) is a figure which shows the state which has deform | transformed the covering body, in order to lock the other of a latching | locking part to a coping core material. It is a figure which shows a modification, and is a principal part longitudinal cross-sectional view of handrail Kasagi. It is a figure which shows a reference example, and is a principal part longitudinal cross-sectional view of handrail Kasagi. It is a figure which shows other embodiment , (a) is a principal part longitudinal cross-sectional view of a handrail body, (b) is a principal part expansion longitudinal cross-section of the boundary part of a coping core material and a covering body for demonstrating spreading | diffusion of an adhesive agent. FIG.

  FIG. 1 shows a handrail using the handrail cap A of the present invention. In this embodiment, the handrail is configured as a wall handrail disposed along the wall surface 11, and is formed by fixing the handrail headboard A to a bracket 12 fixed to the wall surface 11 at a predetermined interval.

  For example, the bracket 12 is manufactured by cutting an extruded mold of a metal material having a predetermined cross-sectional shape with a predetermined width. As shown in FIG. 1A, the bracket 12 has a wall surface fixing piece 12a at one end portion and a cap fixing piece 12b at the other end portion, and is fixed to the wall surface 11 by the wall surface fixing piece 12a. In this embodiment, the wall surface fixing piece 12 a is fixed using a nut 14 that is fastened to an anchor 13 that is previously installed on the wall surface 11.

  The handrail coping A is formed by covering the coping core 1 with a covering 3. The headboard core material 1 is formed of a hard material such as metal, and in this embodiment, it is formed of an aluminum extrusion mold material in consideration of the easiness of bending when a bent handrail is constructed. As shown in FIG. 1 (b), the headboard core material 1 has a substantially C-shaped cross-sectional shape opened to one side, and is fixed to the bracket 12 through an open portion. This is performed by fixing the cap fixing piece 12b with screws 15. A fitting concave groove 1a is formed on the innermost wall surface of the hollow portion of the headboard core 1 in order to position the inserted headboard fixing piece 12b.

  This headboard core 1 has a shape in which three concave grooves 1b, 1b, 1b are formed on the outer peripheral wall, and the concave groove 1b and the above-described open portion are spaced by 90 degrees around the center of the outer peripheral wall. The wall surface in which the concave groove 1b and the open portion are not formed is used as the support protrusion 1c. Each bearing protrusion 1c has a flat outer peripheral surface as shown in FIG. Further, horizontal support surfaces 1d are formed on the two rows of support protrusions 1c located on the opposite side of the open portion. Furthermore, fitting projections 16, 16 that are locked by a locking portion 6, which will be described later, project from the two rows of support protrusions 1 c facing the open portion so as to face the open portion.

  On the other hand, the covering 3 is formed of PVC and has a substantially C-shaped cross-sectional shape opened to one side by the opening 2. This covering 3 is formed by disposing a skin layer (surface treatment layer 5) on the surface of the main body 4. The skin layer 5 is formed by integrally molding a semi-rigid resin into a film shape, and is adjusted so that the hardness is about 90 in the JIS-A type.

  Further, in this embodiment, the main body 4 is made of JIS by adding PVC having a polymerization degree of 2000 or more as a base material and a polyester-based low-volatile plasticizer in the range of 150 to 155 parts by weight. -Hardness of type A is set to about 50. The main body portion 4 is formed in a substantially arc shape whose inner wall substantially passes through both ends of the support protrusion 1c and one end of the support surface 1d, and at a position facing the support surface 1d, a bulge 3a whose tip is in contact with the support surface 1d, 3a is projected.

  Further, a locking portion 6 is formed at the open end of the covering 3. The locking portion 6 is formed by folding back the tip of a ridge 6b projecting inward from the tip of the peripheral wall 6a extending in an arc shape from the main body 4 along the peripheral wall 6a. It is formed in a substantially U-shaped bowl shape. Similar to the skin layer 5 described above, the locking portion 6 is adjusted so that the hardness is about 90 in the JIS-A form. The surface of the locking portion 6 is covered with the skin layer 5 described above, and the appearance and feel of the covering 3 are uniformly adjusted by the skin layer 5.

  The above covering body 3 is a three-layer molded product of a very soft resin constituting the main body portion 4 and a semi-hard resin constituting the skin layer 5 and the locking portion 6, and is formed by extrusion molding. The part 4, the skin layer 5, and the locking part 6 are integrated.

  In this embodiment, the handrail headwood A described above is formed by attaching the covering 3 to the headboard core 1 fixed to the wall surface 11 via the bracket 12 at the handrail construction site. As shown in FIG. 2, the opening 3 of the cover 3 is narrower than the width of the headboard core 1 in a steady state as shown in FIG. As shown in the figure, the cover 3 is deformed in the direction in which the opening 2 is widened (in the direction of the arrow in the figure) using the thumbs 17, 17 and the index fingers 18, 18 of both hands, and then the capwood core material from the widened opening 2. Let's swallow 1

  In this state, the locking portions 6, 6 are positioned so that the folded piece 6 c covers the outside of the fitting protrusion 16, so that the covering body 3 is then rotated around the headwood core 1 and one locking portion 6 is rotated. The folding piece 6c and the protrusion 6b are inserted into the headboard core member 1 from the open portion, and one locking portion 6 is first fitted into the fitting protrusion 16 as shown in FIG. As described above, since the inner peripheral wall of the main body 4, that is, the inner periphery of the covering 3 is sized to contact both ends of the support protrusion 1 c and the like, the folded piece 6 c of the other locking portion 6 is the same as described above. , It will be located outside the fitting projection 16.

  Therefore, after this, as shown in FIG. 4B, when the other locking portion 6 is pulled in a direction beyond the fitting protrusion 16, the flexible main body portion 4 is bent, and the covering 3 is formed into the groove 1b, At the position facing the surface of the support protrusion 1c, the tip of the folded piece 6c located outside the fitting protrusion 16 is fitted to the fitting protrusion 16 because it is elastically deformed from an arc shape to a straight line pressure-contacting these surfaces. It is possible to move to a position beyond the tip. After that, when the folded piece 6 c located beyond the fitting projection 16 is pushed into the center side, the other locking portion 6 is locked to the fitting projection 16. In addition, when the covering body 3 is gripped inward when the other locking portion 6 is pulled, the inner periphery of the covering body 3 is elastically deformed so as to come into pressure contact with the support protrusion 1c and the like. It will be easy.

  As described above, the cover 3 attached to the core member 1 is fitted with the fitting protrusion 16 with the hard engaging portion 6 having a substantially U-shaped cross section, and the boundary between the folded piece 6c and the protrusion 6b. Since it is not easily deformed at the boundary between the ridge 6b and the peripheral wall portion 6a, the locked state is stabilized and fixed to the coping core 1 with a strong fixing strength. Further, the folded piece 6c, the protrusion 6b, and the peripheral wall portion 6a come into contact with the fitting protrusion 16, and the movement of the cover 3 in the front-back direction and the circumferential direction of the handrail headboard A with respect to the headboard core material 1 is restricted, and the locking portion The covering 3 is not bent at the joint boundary between the body 6 and the main body 4. Furthermore, cushioning properties are imparted by the flexibility of the main body 4.

  In the above, the outer periphery of the covering 3 is circular, but it is also possible to make it polygonal as shown in FIG. 5, and in this case, a certain amount of resistance when gripped by the apex 3b. Since a feeling can be given, it becomes possible to make the anti-slip good and give a firm tactile feeling. Further, when the hollow portion 6d is provided in the locking portion 6 as shown in FIG. 5, the fitting strength can be further improved.

FIG. 6 shows a reference example of the present invention. In this reference example and other embodiments described later, the same elements as those in the above-described embodiments are denoted by the same reference numerals in the drawings, and the description thereof is omitted. In this reference example , the handrail headboard A is formed by fixing the covering 3 to the headboard core 1 with an adhesive 19. Fixing with the adhesive 19 can be performed by adjusting the timing at which the adhesive effect is exerted by adjusting the timing at which the release paper such as double-sided adhesive tape or hot melt adhesive is peeled off or heated, for example. Since it is not always necessary to continuously apply the covering 3 to the headboard 1 and the covering 3 to the headboard 1, workability can be improved.

  Further, by using the adhesive 19 for fixing the covering 3 to the headboard core material 1 in this way, the covering 3 has the material end treatment piece 20 at the open end instead of the locking portion 6 described above. The material end treatment piece 20 is inserted between the headwood core material 1 and the bracket 12 to prevent the material end from sagging at the open end.

FIG. 7 shows another embodiment of the present invention . In this embodiment , as shown in FIG. 7A, an adhesive injection hole 7 that communicates the boundary between the hollow portion and the cover 3 is drilled in the headboard core material 1. The adhesive injection hole 7 is arranged on the bottom surface of the fitting groove 1a, and is discharged from the tip of the nozzle by inserting a nozzle of a storage container (not shown) of the adhesive 19 straight from the opening 2 of the covering material 3. The adhesive 19 is guided to the boundary portion between the headboard core material 1 and the covering 3.

Further, in this embodiment, there is a minute dimension between the inner peripheral surface of the covering 3 and the outer peripheral surface where the concave groove 1b and the open portion of the headwood core material 1 are not formed, as shown in FIG. The void 8 is set. Therefore, as indicated by an arrow in the figure, when the adhesive 19 injected from the adhesive injection hole 7 enters the concave groove 1b of the capwood core material 1, it is guided into the gap 8 by capillarity, and the capwood core material. 1 is diffused at the boundary portion between the cover 3 and the core material 1 and the cover 3 can be firmly fixed.

In this embodiment , the cover 3 is firmly fixed to the headboard 1 by both adhesion by the adhesive 19 and locking by the locking portion 6.

  7A shows the case where the diffusion and filling of the adhesive 19 are limited to the upper side of the handrail headboard facing the open portion of the headboard core material 1, but the headboard core material 1 and the covering body are shown. The adhesive strength can be further increased if it is almost the entire area of the boundary portion 3. In this case, if the adhesive injection holes 7 are arranged at three positions around the center of the headboard core material 1 at intervals of 90 degrees excluding the open portion, diffusion to the entire region is facilitated.

  In the embodiment described above, the main body 4, the skin layer 5, and the locking portion 6 are all made of PVC, that is, a synthetic resin having the same composition. As long as they are compatible with each other, such as being hardly peeled off, it is possible to maintain good production efficiency even if they are not necessarily formed of a synthetic resin having the same composition. Further, the flexibility of the main body 4 is such that the opening 2 opens more than the shortest diameter dimension in the cross-sectional direction, such as the width and thickness of the headboard core 1, that is, the width and thickness of the narrowest part. It is sufficient to allow the covering 3 to allow the elastic deformation.

DESCRIPTION OF SYMBOLS 1 Headwood core material 2 Opening part 3 Covering body 4 Main body part 5 Surface treatment layer 6 Locking part 7 Adhesive injection hole 8 Space

Claims (5)

A handrail headwood formed by covering the headboard core material with a covering body having a cross-sectional shape opened to one side by an opening portion narrower than the headwood core material,
Each of the headboard core material and the covering body is formed in a substantially C-shaped cross section that is open to one side, and the covering body engages the open end edge portion with the open end edge portion of the headboard core material. It is attached to the headwood core material,
In addition, the covering body is locally formed on the open end edge portion of the main body portion which is formed flexibly by adjusting the amount of the plasticizer added to the base material made of the synthetic resin and the semi-rigid synthetic resin. Three-layer molding is formed by a stopper and a surface treatment layer covering the main body and the locking part, and the handrail is formed so as to be flexible enough to spread the open part with fingers and put it on the core of the head. . The handrail headwood according to claim 1, wherein the base material is made of polyvinyl chloride, and the plasticizer is made of a polymer having low volatility . The handrail headwood according to claim 2, wherein the polymerization degree of the base material is 2000 or more . The handrail according to any one of claims 1 to 3 , wherein an adhesive injection hole that is exposed to the outside from the open portion of the cover and communicates with a boundary between the cover and the cover is perforated in the capwood core. Kasagi. The handrail headboard according to claim 4 , wherein a gap that promotes diffusion of the adhesive by capillary action is set at the boundary.

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