JP6806501B2 - handrail - Google Patents

Description

The present invention relates to a handrail installed on stairs or the like.

Conventionally, as shown in Non-Patent Document 1, there has been a type of handrail installed in an indoor staircase portion in which a wire is stretched between columns.

"AMiS Catalog (STJ0798A)", Sankyo Tateyama Co., Ltd., February 2013, p. 13

However, in such a wire type handrail, the vibration caused by going up and down the stairs may be transmitted from the tread plate to the member supporting the wire via the support column, and a chattering noise may be generated.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a handrail in which a lattice material is provided between columns and which suppresses the generation of chattering noise.

The present invention includes a strut, a grid member, a connecting tool, and a grid support, the strut has a groove extending vertically, and the grid support is provided on the strut and is a panel covering the groove of the strut. The lattice material is arranged between the columns , has engaging portions at both ends , and faces the front and rear columns so as to support the lower side surface of the lattice material with the upper end surface. It is shorter than the distance between the bottom surfaces of the groove, the connector is mounted in the groove of the column, the engaging piece of the connector is engaged with the engaging part of the lattice material, and the connector is state, and are not connecting attracted to post side in a state of being pulled lattice material from front and rear, characterized in that it covers the connector in the lattice support handrail.

According to the present invention, both ends of the lattice material are attracted to the support column side by the connecting tool, and the lattice material is connected to the support column in a state where tension is applied, so that the generation of chattering noise due to vibration can be suppressed.

The first embodiment of the handrail is shown, (a) is a cross-sectional view, and (b) is a vertical cross-sectional view. It is a three-view view of the connector of the first embodiment, (a) is a side view, (b) is a rear view, and (c) is a bottom view. 1 is an assembly procedure diagram (1) of the first embodiment ((a) is before mounting the fixture, and (b) is after mounting the fixture). FIG. 2 is an assembly procedure diagram (2) of the first embodiment ((a) is before mounting the lower panel material, and (b) is after mounting the lower panel material). FIG. 3 is an assembly procedure diagram (3) of the first embodiment ((a) is an overall view and (b) is an enlarged view). It is an assembly procedure figure (4) of 1st Embodiment. FIG. 5 is an assembly procedure diagram (5) of the first embodiment. FIG. 6 is an assembly procedure diagram (6) of the first embodiment ((a) is a perspective view, and (b) is a vertical sectional view). FIG. 7 (7) is an assembly procedure diagram (7) of the first embodiment ((a) is a perspective view, and (b) is a vertical sectional view). FIG. 8 is an assembly procedure diagram (8) of the first embodiment ((a) is a perspective view, and (b) is a vertical sectional view). FIG. 9 (9) is an assembly procedure diagram (9) of the first embodiment ((a) is a perspective view, and (b) is a vertical sectional view). FIG. 10 is an assembly procedure diagram (10) of the first embodiment. FIG. 11 is an assembly procedure diagram (11) of the first embodiment. FIG. 12 is an assembly procedure diagram (12) of the first embodiment. FIG. 13 is an assembly procedure diagram (13) of the first embodiment. FIG. 14 is an assembly procedure diagram (14) of the first embodiment. FIG. 15 is an assembly procedure diagram (15) of the first embodiment. The second embodiment of the handrail is shown, (a) is a cross-sectional view, and (b) is a vertical cross-sectional view. It is a three-view view of the connector of the second embodiment, (a) is a side view, (b) is a rear view, and (c) is a bottom view. It is an assembly procedure figure (8') of the 2nd Embodiment. A third embodiment of the handrail is shown, where (a) is a cross-sectional view and (b) is a vertical cross-sectional view. It is an assembly procedure diagram (6 ″) of the third embodiment. It is an assembly procedure diagram (7 ″) of the third embodiment. It is an assembly procedure diagram (8 ″) of the third embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The first embodiment of this handrail is installed in an indoor staircase portion, and as shown in FIGS. 1 and 17, three support columns 1 and two upper and lower columns are provided between each support column 1. The grid material 2 (lower grid material 2a, upper grid material 2b), the connecting tool 3 connecting the support column 1 and the lattice material 2, and the lattice support tool 4 provided on the support column 1 (lower grid support tool 4a, upper grid). A support 4b) is provided. It is assumed that the down side of the stairs is the front side and the up side is the rear side, and the support column 1 is erected at the right rear end of the tread plate P extending to the left and right. Further, FIG. 1 shows the front and middle columns 1 of the three columns 1, and shows the lower lattice 2a of the two lattice members 2, but the upper lattice 2b and the intermediate and rear columns 1. The lattice material 2 between the columns 1 on the side has the same configuration.

The support column 1 is made of a hollow aluminum member, has a substantially octagonal cross section as shown in FIG. 1, and has groove portions 11 extending vertically on the front side surface and the rear side surface. The groove portion 11 has a substantially U-shaped cross section and is open toward the front side and the rear side, respectively, and the entrance piece 12 extending in the front-rear direction and projecting toward the inside and outside of the groove portion 11 at the left and right entrance edges of the groove portion 11, respectively. Is provided.

The lattice material 2 (lower lattice material 2a and upper lattice material 2b) is made of a hollow aluminum profile material, has a substantially square cross section as shown in FIG. 1, and has a left-right width of the groove portion 11. It is substantially the same as the groove width (distance between the left and right inlet pieces 12). The lattice material 2 is provided so as to be inclined according to the inclination of the stairs, and both front and rear end surfaces are oriented vertically in an inclined state. A rectangular hole penetrating the hollow portion is provided on the upper side surface of both end portions of the lattice member 2, and this is used as the engaging portion 21.

The connecting tool 3 for connecting the support column 1 and the lattice material 2 is the same before and after the lattice material 2, and as shown in FIGS. 1 and 2, it is composed of substantially Z-shaped metal fittings and extends upward. It has a mounting piece 31 and an engaging piece 32 extending downward, and the mounting piece 31 is formed to be vertically longer than the engaging piece 32. Further, the mounting piece 31 is formed with elongated screw holes 33 that are long in the vertical direction, and the lower end portion of the engaging piece 32 is chamfered so as to taper downward. The engaging piece 32 is inserted into the engaging portion 21 of the lattice material 2, and the left and right width of the engaging portion 21 is substantially the same as the left and right width of the engaging piece 32, and is engaged. The front-rear width of the portion 21 is wider than the thickness of the engaging piece 32.

The grid support 4 (lower grid support 4a and upper grid support 4b) is made of an aluminum profile and is attached to the groove 11 of the support column 1 as shown in FIG. .. The cross section is substantially U-shaped, and the left-right width is substantially the same as the groove width of the groove portion 11 (distance between the left and right inlet pieces 12), and the direction of opening toward the bottom surface side of the groove portion 11 is the left side surface. A protrusion 41 is provided on the right side surface, and the left and right protrusions 41 are locked to the inner end of the groove of the inlet piece 12. Further, the exposed surface of the grid support 4 (the front side surface of the grid support 4 attached to the front groove 11 and the rear side of the grid support 4 attached to the rear groove 11) is outside the groove of the inlet piece 12. It is flush with the end face. Therefore, the grid support 4 functions as a grid plate that covers the groove portion 11. Further, the upper end surface of the lattice support 4 is an inclined surface so as to fall forward with respect to the horizontal plane in accordance with the inclination of the lattice member 2 (that is, the inclination of the stairs).

Then, with respect to the connecting portion between the support column 1 and the lattice material 2, as shown in FIG. 1, a lattice support 4 is attached to the groove portion 11 of the support column 1, and both ends of the lattice material 2 are attached to the front and rear columns from above. The lower side surface of the lattice member 2 is brought into contact with the upper end surface of the lattice support 4 so as to be inserted into the opposite groove portions 11 of 1, and the lattice member 2 is supported by the lattice support 4. Then, the engaging pieces 32 of the connecting tool 3 are inserted into the engaging parts 21 at the front and rear ends of the lattice material 2 from above, respectively, and the mounting piece 31 of the connecting tool 3 hits the bottom surface of the groove portion 11 of the support column 1. They are brought into contact with each other and attached to the screw holes 33 through screws. Here, the lattice material 2 is slightly shorter than the distance between the bottom surfaces of the opposing groove portions 11 of the front and rear columns 1, and by screwing the connector 3 to the column 1, the lattice material 2 is attached to the column 1. I'm attracted to. Therefore, the lattice member 2 is in a state of being pulled by the connecting tool 3 from the front and back, and is connected to the support column 1 in a state where tension is applied. The grid material 2 attached between the front support column 1 and the intermediate support column 1 and the lattice material 2 attached between the intermediate support column 1 and the rear support column 1 are located in a straight line. The height of the support 4 is set.

The above is the description of the configuration of the connecting portion between the support column 1 and the lattice member 2 in the first embodiment of the handrail of the present invention. Subsequently, the assembly procedure of the first embodiment is shown and other parts are shown. The configuration of is also described.

<Procedure (1)>
First, as shown in FIG. 3, a fixture 13 made of an L-shaped metal fitting is attached to the lower end of each column 1. In the fixture 13, the standing piece is inserted into the groove 11 on the rear side (up side of the stairs) (FIG. 3 (a)), and the lower end of the bottom surface of the groove 11 is notched, and the fixture 13 is formed from this notch. The horizontal piece of 13 projects into the groove 11 on the front side (downward side of the stairs), and the standing piece is fixed to the bottom surface of the groove 11 by screwing (FIG. 3 (b)). The lower side surface of the horizontal piece of the fixture 13 is flush with the lower end surface of the support column 1.

<Procedure (2)>
Next, as shown in FIG. 4, the lower panel member 5a is attached to each support column 1. The lower panel member 5a has the same cross-sectional shape as the lattice support 4, and has a height lower than the rise dimension (one step height) of the stairs by the thickness of the tread plate P. The lower panel member 5a is inserted into the groove 11 on the rear side (up side of the stairs) of each support column 1 from the upper end (FIG. 4 (a)) and slid to the lower end (FIG. 4 (b)).

<Procedure (3)>
Next, as shown in FIG. 5, the support column support 6 is attached to the stairs. Here, the columns 1 are attached to the first, third, and sixth steps from the bottom of the stairs, and the front ends of the treads P on the upper step, that is, the second step, the fourth step, and the seventh step, respectively. A strut support 6 is screwed and fixed to the right end of the surface (FIG. 5 (a)). The strut support 6 has a substantially rectangular parallelepiped insertion portion 61 located at the center in the left-right direction and contact portions 62 located on both the left and right sides of the insertion portion 61, and the contact portion 62 has a cross section of substantially eight. It has a contact surface that is inclined according to the outer shape of the square column 1 (FIG. 5 (b)).

<Procedure (4)>
Next, as shown in FIG. 6, the support column 1 is attached to the stairs. Each strut 1 is installed in the first, third, and sixth steps from the bottom of the stairs, and in the groove 11 on the rear side (up side of the stairs), the strut support 6 provided one step above. The insertion portion 61 is inserted, and the side surface of the support column 1 is brought into contact with the contact portion 62 of the support column support 6. At this time, the lower panel member 5a fits in the lower portion of the insertion portion 61. Then, the horizontal piece of the fixture 13 at the lower end of the column 1 is screwed to the tread plate P, and a screw is inserted from the groove 11 on the front side of the column 1 and screwed to the insertion portion 61 of the column support 6. As a result, the support column 1 is securely fixed to the stairs.

<Procedure (5)>
Next, as shown in FIG. 7, the end plate material 5c is attached to the front column 1 and the rear column 1. The end plate material 5c has the same cross-sectional shape as the lattice support 4 and has the same height as the support column 1, and is formed in the groove portion 11 on the front side of the support column 1 on the front side and the groove portion 11 on the rear side of the support column 1 on the rear side. It is inserted from the top.

<Procedure (6)>
Next, as shown in FIG. 8, the lower grid support 4a is attached to each support column 1. The lower grid support 4a is attached to the rear groove 11 of the front column 1, the front and rear groove 11 of the intermediate column 1, and the front groove 11 of the rear column 1, and is inserted from the upper end of each. It is done. The lower end surface of each of the lower grid supports 4a is a horizontally oriented surface, and the lower end of the lower grid support 4a attached to the front groove 11 is in contact with the tread plate P, and the rear groove 11 is attached. The lower end of the lower grid support 4a attached to the support 6 comes into contact with the insertion portion 61 of the support support 6. Therefore, the height of the lower grid support 4a attached to the groove 11 on the front side is higher.

<Procedure (7)>
Next, as shown in FIG. 9, the lower grid member 2a is attached between the columns 1. Since the distance between the front and middle columns 1 and the distance between the middle and rear columns 1 are different, the lower grid members 2a also have a corresponding length, and both of them face the front and rear columns 1. It is slightly shorter than the distance between the bottom surfaces of the groove portion 11. The front and rear ends of the lower grid member 2a are inserted from the upper ends of the groove 11 of the support column 1 and slid downward so that the lower side surface is in contact with the upper end surface of the lower grid support 4a. ..

<Procedure (8)>
Next, as shown in FIG. 10, the front end portion of the lower lattice member 2a is connected to the support column 1 by the connecting tool 3. First, the engaging piece 32 of the connecting tool 3 is inserted into the engaging portion 21 on the front side of the lower lattice member 2a, and the mounting piece 31 of the connecting tool 3 is brought into contact with the bottom surface of the groove portion 11 on the rear side of the support column 1. Contact (1 in FIG. 10 (b)). Then, a screw is passed through the screw hole 33 of the connector 3 and screwed to the support column 1 (2 in FIG. 10B). As a result, the lower lattice member 2a is attracted to the front support column 1, the front end surface is in contact with the front support column 1, and the rear end surface is slightly separated from the rear support column 1.

<Procedure (9)>
Next, as shown in FIG. 11, the rear end portion of the lower lattice member 2a is connected to the support column 1 by the connecting tool 3. First, the engaging piece 32 of the connecting tool 3 is inserted into the engaging portion 21 on the rear side of the lower lattice member 2a, and the mounting piece 31 of the connecting tool 3 is brought into contact with the bottom surface of the groove portion 11 on the front side of the support column 1. Contact (1 in FIG. 11 (b)). Then, a screw is passed through the screw hole 33 of the connector 3 and screwed to the support column 1 (2 in FIG. 11B). Since the rear end surface of the lower grid member 2a is slightly separated from the support column 1, the lower lattice member 2a is attracted to the rear support column 1 side by screwing the connector 3 to the support column 1. As a result, the lower lattice member 2a is pulled from the front and back by the connecting tool 3 and is connected to the support column 1 in a state where tension is applied.

<Procedure (10)>
Next, as shown in FIG. 12, the upper grid support 4b is attached to each support column 1. The upper grid support 4b is attached to the rear groove 11 of the front column 1, the front and rear groove 11 of the intermediate column 1, and the front groove 11 of the rear column 1, all of which have the same height. And each is inserted from the upper end. At this time, as shown in FIG. 1, the left-right width of the connecting tool 3 is a width that fits inside the U-shaped upper grid support 4b, and the connecting tool 3 and the upper grid support 4b do not interfere with each other. Absent. Further, in the upper grid support 4b attached to the rear side (upward side of the stairs) of the support column 1, the lower end surface is a horizontal surface, and the lower end of the exposed surface (rear side surface) is the lower grid member 2a. It is in contact with the upper side surface. On the other hand, when the lower end surface of the upper grid support 4b attached to the front side of the support column 1 (downward side of the stairs) is a horizontal surface, the lower end of the rear end portion of the upper grid support 4b is the lower grid member 2a. Since a gap is created between the lower end of the exposed surface (front side surface) and the upper side surface of the lower lattice material 2a due to contact with the upper side surface, the lower end surface is the inclination of the lattice material 2 (that is, the inclination of the stairs). The surface is inclined so as to fall forward with respect to the horizontal plane.

<Procedure (11)>
Next, as shown in FIG. 13, the upper lattice member 2b is attached between the columns 1, and the front end and the rear end are connected to the columns 1 by the connecting tools 3, respectively. The connecting structure is the same as that of the lower lattice member 2a, and the upper lattice member 2b is also in a state of being pulled by the connecting tool 3 from the front and back, and is connected to the support column 1 in a state where tension is applied.

<Procedure (12)>
Next, as shown in FIG. 14, the upper panel member 5b is attached to each support column 1. The upper panel member 5b is attached to the rear groove portion 11 of the front column 1, the front and rear groove 11 of the intermediate column 1, and the front groove 11 of the rear column 1, and is the same as the lattice support 4. The cross-sectional shape is the height from the upper lattice member 2b to the upper end of the support column 1. The upper panel member 5b is inserted into the groove 11 from the upper end, and the lower end is brought into contact with the upper side surface of the upper lattice member 2b. Similar to the upper grid support 4b, the upper panel member 5b attached to the rear side of the column 1 (upward side of the stairs) has a lower end surface facing horizontally, and the lower end surface is a horizontal surface, and the front side of the column 1 (of the stairs). The upper paneling material 5b attached to the (downward side) is an inclined surface so that the lower end surface is downwardly downward with respect to the horizontal plane. Further, for the same reason, the upper paneling material 5b attached to the rear side of the support column 1 (upward side of the stairs) has an inclined surface so that the upper end surface is lowered forward with respect to the horizontal plane. The lower end surface of the upper paneling material 5b attached to the front side (downward side of the stairs) is a horizontal surface.

<Procedure (13)>
Next, as shown in FIG. 15, the handrail receiver 71 is attached to the upper end of the support column 1. The handrail receiver 71 is composed of a shape member extending back and forth with standing pieces formed at the left and right ends and an intermediate portion of the flat plate, and is horizontally laid across three columns 1, and a tapping hole of the column 1 is provided from above. Screw it to.

<Procedure (14)>
Next, as shown in FIG. 16, the handrail material 7 is attached to the handrail receiver 71. The handrail material 7 is made of wood and has a recess having a substantially U-shaped cross section on the lower side surface. The handrail receiver 71 is fitted into the recess and fixed by screwing from the lower side of the handrail receiver 71. To do. Further, a resin end cap 72 that covers the end face is attached to the front and rear ends of the handrail receiver 71, and is fixed by screwing from the lower side of the handrail receiver 71. As shown in FIG. 17, the first embodiment of the handrail is completed.

According to the first embodiment of the handrail of the present invention configured in this way, both ends of the lattice material 2 are attracted to the support column 1 side by the connecting tool 3, and the support column is in a state where tension is applied to the lattice material 2. Since it is connected to 1, the generation of chattering noise due to vibration can be suppressed. Further, since the engaging portion 21 of the lattice material 2 is a hole wider in the front-rear direction than the thickness of the engaging piece 32 of the connector 3, the inclination angle of the lattice material 2 can be freely adjusted according to the slope of the stairs. Can be changed. Further, in the connector 3, the engaging piece 32 that engages with the lattice material 2 and the screw hole 33 through which the screw for screwing to the support column 1 is passed are vertically separated from each other and are located at positions away from the lattice material 2. Since the connecting tool 3 can be screwed to the support column 1, the lattice material 2 does not easily interfere with the work at the time of connecting. Further, on the front side of the lattice material 2 (downward side of the stairs), the upper side surfaces of the support column 1 and the lattice material 2 have an acute angle, and especially when the inclination angle of the lattice material 2 with respect to the horizontal plane is large, the support column 1 and the lattice material 2 approach each other. Therefore, it becomes difficult to screw the connector 3 from the rear side with a normal screwdriver. In that case, on the front side of the lattice material 2, the connector 3 is screwed with a ratchet or the like that can be worked from the direction perpendicular to the axis of the screw, and after the lattice material 2 in which the upper side surfaces of the support column 1 and the lattice material 2 are blunt. On the side, the connector 3 may be screwed from the front side with a normal screwdriver, the lattice material 2 may be pulled toward the support column 1, and tension may be applied. Further, since the same connecting tool 3 is used before and after the lattice material 2, the number of parts is small and the cost can be suppressed. Further, in each support column 1, the lower lattice support 4a, the lower lattice member 2a, the upper lattice support 4b, and the upper lattice member 2b are sequentially laminated, and the lattice support 4 is located on the upper side. Since the material 2 is supported, the upper grid support 4b restricts the upward movement of the lower grid 2a, and the grid support 4 also serves as a grid plate that covers the groove 11 and hides the connector 3. , The number of parts can be reduced and the cost can be reduced without the need for separate parts. Since the lattice support 4 regulates the vertical movement of the lattice material 2, the connector 3 does not need to have a function of restricting the vertical movement of the lattice material 2, and the lattice material 2 is attracted to the support column 1 side. Since it is only necessary to use only one, the parts can be simplified to increase the degree of freedom in design and the cost can be reduced.

Next, a second embodiment of the handrail of the present invention will be described. In the second embodiment, the shape of the connecting tool 3a used for connecting the front side (downward side of the stairs) of the lattice material 2 and the support column 1 is different from that in the first embodiment, and the other configurations are the same. is there. Hereinafter, only the parts different from the first embodiment will be described.

As shown in FIGS. 18 and 19, the connector 3a of the second embodiment is made of a single metal flat plate, and like the connector 3 of the first embodiment, the attachment extending upward. It has a piece 31 and an engaging piece 32 extending downward, and the mounting piece 31 is formed to be vertically longer than the engaging piece 32. Further, the mounting piece 31 is formed with a notch extending vertically in the center in the left-right direction from the lower end to the right edge portion, and the right side portion of the notch is bent forward to form the insertion piece 34 ( Since FIG. 19B is a rear view, the right side corresponds to the left side in the drawing). The insertion piece 34 is bent from the upper end to the front side, and has an upper portion 34a extending downward on the front side, an intermediate portion 34b extending downward on the rear side from the lower end of the upper portion 34a, and a lower portion extending downward on the front side from the lower end of the intermediate portion 34b. It consists of a side portion 34c. Further, a tapping piece 35 extending toward the rear side is formed at the upper end of the mounting piece 31.

Then, with respect to the connecting portion between the support column 1 and the lattice material 2, as shown in FIG. 18, a lattice support 4 is attached to the groove portion 11 of the support column 1, and both ends of the lattice material 2 are attached to the front and rear columns from above. The lower side surface of the lattice member 2 is brought into contact with the upper end surface of the lattice support 4 so as to be inserted into the opposite groove portions 11 of 1, and the lattice member 2 is supported by the lattice support 4. Then, the engaging piece 32 of the connecting tool 3a is inserted into the engaging portion 21 of the front end portion of the lattice member 2 from above, and the mounting piece 31 of the connecting tool 3a is brought into contact with the bottom surface of the groove portion 11 of the support column 1. And the insertion piece 34 is inserted into the insertion hole 14 formed in the bottom surface of the groove portion 11. Here, since the distance between the lower end of the intermediate portion 34b between the mounting piece 31 and the insertion piece 34 is narrower than the wall thickness of the bottom surface of the groove portion 11, the bottom surface of the groove portion 11 is sandwiched between the mounting piece 31 and the insertion piece 34. As a result, the elastic force acts to fix the connector 3a. On the other hand, the same connecting tool 3 as in the first embodiment is attached to the rear side of the lattice material 2, and the lattice material 2 is attracted to the support column 1 by screwing the connecting tool 3 to the support column 1. Therefore, the lattice member 2 is in a state of being pulled by the connecting tools 3a and 3 from the front and back, and is connected to the support column 1 in a state where tension is applied.

Subsequently, the assembly procedure of the second embodiment will be described, but also in the procedure, only the attachment portion of the connecting tool 3a on the front side of the lattice member 2 is different from the first embodiment. That is, the assembly procedure of the second embodiment is the same as the procedure (1) to the procedure (7) of the first embodiment, and instead of the procedure (8) of the first embodiment, the following procedure ( 8').

<Procedure (8')>
Next, as shown in FIG. 20, the front end portion of the lower lattice member 2a is connected to the support column 1 by the connecting tool 3a. First, the engaging piece 32 of the connecting tool 3a is inserted into the engaging portion 21 on the front side of the lower lattice member 2a, and the mounting piece 31 of the connecting tool 3 hits the bottom surface of the groove portion 11 on the rear side of the support column 1. The insertion piece 34 is brought into contact with the insertion piece 34 and inserted into the insertion hole 14 on the bottom surface of the groove portion 11 (1 in FIG. 20). At this time, since the lower portion 34c of the insertion piece 34 extends downward on the front side, it is easy to insert the insertion piece 34 into the insertion hole 14. Then, the tapping piece 35 of the connector 3 is tapped from above with a hammer or the like, the connector 3a is pushed down, the bottom surface of the groove 11 is inserted between the mounting piece 31 and the insertion piece 34, and the connector 3a is inserted into the support column 1. It is fixed to (2 in FIG. 20). As a result, the lower lattice member 2a is attracted to the front column 1 side by the elastic force of the insertion piece 34, the front end surface abuts on the front column 1, and the rear end surface is slightly separated from the rear column 1. It becomes a state.

Then, the subsequent assembly procedure is the same as the procedure (9) to (14) of the first embodiment, and the second embodiment of the handrail is completed.

According to the second embodiment of the handrail of the present invention configured as described above, both ends of the lattice material 2 are attracted to the support column 1 side by the connecting tools 3a and 3, and tension is applied to the lattice material 2. Since it is connected to the support column 1, it is possible to suppress the generation of chattering noise due to vibration. Further, since the engaging portion 21 of the lattice material 2 has a hole wider in the front-rear direction than the thickness of the engaging piece 32 of the connecting tools 3a and 3, the inclination angle of the lattice material 2 also increases according to the slope of the stairs. It can be changed freely. Further, in the connecting tool 3 on the rear side of the lattice material 2, the engaging piece 32 that engages with the lattice material 2 and the screw hole 33 through which the screw for screwing to the support column 1 is passed are separated vertically. Since the connecting tool 3 can be screwed to the support column 1 at a position away from the lattice material 2, the lattice material 2 does not easily interfere with the work during connection. Further, on the front side of the lattice material 2 (downward side of the stairs), the upper side surfaces of the support column 1 and the lattice material 2 have an acute angle, and especially when the inclination angle of the lattice material 2 with respect to the horizontal plane is large, the support column 1 and the lattice material 2 approach each other. However, since the connecting tool 3a on the front side of the lattice material 2 can be easily fixed to the support column 1 by simply hitting it from above with a hammer or the like, there is no problem in the work, and the upper side surfaces of the support column 1 and the lattice material 2 have an acute angle. On the rear side of the material 2, the connecting tool 3 may be screwed from the front side with a normal driver, the lattice material 2 may be pulled toward the support column 1, and tension may be applied. Further, in each support column 1, the lower lattice support 4a, the lower lattice member 2a, the upper lattice support 4b, and the upper lattice member 2b are sequentially laminated, and the lattice support 4 is located on the upper side. The material 2 is supported, the upper grid support 4b restricts the upward movement of the lower grid 2a, and the grid support 4 is also used as a grid plate that covers the groove 11 and hides the connecting tools 3a and 3. Therefore, no separate parts are required, and the number of parts can be reduced to reduce costs. Since the lattice support 4 regulates the vertical movement of the lattice material 2, the connecting members 3a and 3 need not have a function of restricting the vertical movement of the lattice material 2, and the lattice material 2 is placed on the support column 1 side. As long as it is only attracted to the grid, the parts can be simplified to increase the degree of freedom in design and reduce the cost.

Next, a third embodiment of the handrail of the present invention will be described. In the third embodiment, as compared with the first embodiment, the direction in which the connecting tool 3 used for connecting the front side (downward side of the stairs) of the lattice material 2 and the support column 1 is attached and the lattice material with which the connecting tool 3 is engaged are found. The positions of the engaging portions 21 of 2 are different, and the other configurations are the same. Hereinafter, only the parts different from the first embodiment will be described.

As shown in FIG. 21, the connector 3 of the third embodiment is the same as that of the first embodiment (FIG. 2). Further, at the front end portion of the lattice member 2, an engaging portion 21 formed of a rectangular hole penetrating the hollow portion is provided on the lower side surface. On the other hand, at the rear end portion, the engaging portion 21 is provided on the upper side surface as in the first embodiment.

Then, with respect to the connecting portion between the support column 1 and the lattice material 2, as shown in FIG. 21, the lattice support 4 is attached to the groove portion 11 of the support column 1, and from above, both ends of the lattice material 2 are attached to the front and rear columns. The lower side surface of the lattice member 2 is brought into contact with the upper end surface of the lattice support 4 so as to be inserted into the opposite groove portions 11 of 1, and the lattice member 2 is supported by the lattice support 4. Then, on the front side of the lattice member 2, the connector 3 is attached so as to be upside down from the first embodiment, that is, the attachment piece 31 is downward and the engagement piece 32 is upward. The mounting piece 31 is brought into contact with the bottom surface of the groove 11 of the support column 1 and is mounted through the screw hole 33 through a screw, and the upward engaging piece 32 is attached to the engaging portion 21 on the lower side surface of the front end portion of the lattice material 2. It is inserted from the bottom. On the other hand, on the rear side of the lattice material 2, the connecting tool 3 is attached from the upper side as in the first embodiment, and by screwing the connecting tool 3 to the support column 1, the lattice material 2 is attached to the support column 1. I'm attracting. Therefore, the lattice member 2 is in a state of being pulled by the connecting tool 3 from the front and back, and is connected to the support column 1 in a state where tension is applied.

Subsequently, the assembly procedure of the third embodiment will be described, but the procedure is also different from that of the first embodiment only in the portion where the front end portion of the lattice member 2 is connected to the support column 1. That is, the assembly procedure of the third embodiment is the same as the procedures (1) to (5) of the first embodiment, and is replaced with the procedures (6) to (8) of the first embodiment. , The following procedure (6 ″) to procedure (8 ″).

<Procedure (6'')>
Next, as shown in FIG. 22, the connector 3 is attached to the support column 1 in front of the lower lattice member 2a. In the connecting tool 3, the mounting piece 31 is oriented downward and the engaging piece 32 is oriented upward, the mounting piece 31 is brought into contact with the bottom surface of the groove 11 on the rear side of the column 1, and the screw is passed through the screw hole 33. Screw it to 1.

<Procedure (7'')>
Next, as shown in FIG. 23, the lower grid support 4a is attached to each support column 1. The lower grid support 4a is attached to the rear groove 11 of the front column 1, the front and rear groove 11 of the intermediate column 1, and the front groove 11 of the rear column 1, and is inserted from the upper end of each. It is done. The left-right width of the connecting tool 3 is a width that fits inside the U-shaped lower grid support 4a, and the connecting tool 3 and the lower grid support 4a do not interfere with each other. The lower end surface of each of the lower grid supports 4a is a horizontally oriented surface, and the lower end of the lower grid support 4a attached to the front groove 11 is in contact with the tread plate P, and the rear groove 11 is attached. The lower end of the lower grid support 4a attached to the support 6 comes into contact with the insertion portion 61 of the support support 6. Therefore, the height of the lower grid support 4a attached to the groove 11 on the front side is higher.

<Procedure (8'')>
Next, as shown in FIG. 24, the lower grid member 2a is attached between the columns 1. Since the distance between the front and middle columns 1 and the distance between the middle and rear columns 1 are different, the lower grid members 2a also have a corresponding length, and both of them face the front and rear columns 1. It is slightly shorter than the distance between the bottom surfaces of the groove portion 11. The front and rear ends of the lower lattice member 2a are inserted from the upper ends of the groove 11 of the support column 1 and slid downward so that the lower side surface is brought into contact with the upper end surface of the lower lattice support 4a. At the front end portion of the lower lattice member 2a, the engaging piece 32 of the connector 3 is inserted into the engaging portion 21 on the lower side surface. As a result, the front end surface of the lower lattice member 2a is in contact with the front support column 1, and the rear end surface is slightly separated from the rear support column 1. By tapering the front side surface of the engaging piece 32 of the connector 3, the engaging piece 32 can be easily inserted into the engaging portion 21 of the lattice material 2, and the lattice material 2 can be reliably inserted into the front support column 1. You may try to pull it to the side. Further, when a cut-up portion is formed on the engaging piece 32 of the connector 3 and the engaging piece 32 is inserted into the engaging portion 21 of the lattice member 2, the cut-up portion is engaged with the edge portion of the engaging portion 21. By combining them, it may be possible to prevent the lattice material 2 from coming off upward.

Then, the subsequent assembly procedure is the same as the procedure (9) to (14) of the first embodiment, and the third embodiment of the handrail is completed.

According to the third embodiment of the handrail of the present invention configured in this way, both ends of the lattice material 2 are attracted to the support column 1 side by the connecting tool 3, and the support column is in a state where tension is applied to the lattice material 2. Since it is connected to 1, the generation of chattering noise due to vibration can be suppressed. Further, since the engaging portion 21 of the lattice material 2 is a hole wider in the front-rear direction than the thickness of the engaging piece 32 of the connector 3, the inclination angle of the lattice material 2 can be freely adjusted according to the slope of the stairs. Can be changed. Further, in the connector 3, the engaging piece 32 that engages with the lattice material 2 and the screw hole 33 through which the screw for screwing to the support column 1 is passed are vertically separated from each other and are located at positions away from the lattice material 2. Since the connecting tool 3 can be screwed to the support column 1, the lattice material 2 does not easily interfere with the work at the time of connecting. In particular, on the front side of the lattice material 2, since the connector 3 is attached before the lattice member 2 is attached, the lattice material 2 does not interfere with the work, and the engaging piece 32 of the connector 3 attached earlier is attached. On the rear side of the lattice material 2, which can be easily inserted into the engaging portion 21 on the lower side surface of the lattice material 2 and the upper side surface of the support column 1 and the lattice material 2 has an blunt angle, the connector 3 is usually attached from the front side. It may be screwed with a screwdriver, the lattice material 2 may be pulled toward the support column 1, and tension may be applied. Further, since the same connecting tool 3 is used before and after the lattice material 2, the number of parts is small and the cost can be suppressed. Further, in each support column 1, the lower lattice support 4a, the lower lattice member 2a, the upper lattice support 4b, and the upper lattice member 2b are sequentially laminated, and the lattice support 4 is located on the upper side. Since the material 2 is supported, the upper grid support 4b restricts the upward movement of the lower grid 2a, and the grid support 4 also serves as a grid plate that covers the groove 11 and hides the connector 3. , The number of parts can be reduced and the cost can be reduced without the need for separate parts. Since the lattice support 4 regulates the vertical movement of the lattice material 2, the connector 3 does not need to have a function of restricting the vertical movement of the lattice material 2, and the lattice material 2 is attracted to the support column 1 side. Since it is only necessary to use only one, the parts can be simplified to increase the degree of freedom in design and the cost can be reduced.

The present invention is not limited to the above embodiments. For example, the number of columns and the number of lattice members and lattice supports can be set according to various conditions such as the length of stairs and the viewpoint of design. Further, the columns are not limited to those arranged in a straight line, and may be arranged so as to bend in the middle. In that case, a groove may be formed on the corresponding side surface according to the direction in which the columns are lined up. Further, the cross-sectional shape of the support column, the lattice material, and the lattice support is not limited to the above, and can be freely set. For example, the grid support may be a flat plate, in which case only the upper end of the flat plate abuts on the lower side surface of the grid, so that the grid and the grid support may be at different angles of the grid. There is no gap between the two, and processing according to the angle becomes unnecessary.

1 Strut 2 Lattice material 3, 3a Connector 4 Lattice support 21 Engagement part

Claims (1)

Equipped with columns, grid materials, connectors, and grid supports,
The strut has a groove extending vertically and
The lattice support is provided on the support column, functions as a grid covering the groove of the support column, and supports the lower side surface of the lattice material with the upper end surface.
The lattice material is arranged between the columns , has engaging portions at both ends , and is shorter than the distance between the bottom surfaces of the opposing grooves of the front and rear columns.
The connecting tool is installed in the groove of the support column, and the engaging piece of the connecting tool is engaged with the engaging part of the lattice material.
Connector is state, and are not connecting attracted to post side in a state in which the lattice material is pulled from the front and rear,
A handrail characterized in that the connector is covered with a grid support.

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