FIELD OF THE INVENTION The present invention relates to an armrest structure for a railing in which each of a plurality of upright post is rotated to a desired angle relative to a handrail by way of each of multiple first connectors.
BACKGROUND OF THE INVENTION Referring to FIG. 1, a conventional armrest structure 10 for a railing contains a plurality of upright posts 11 erected on step faces of stairs respectively, and each upright post 11 has an insertion 111 formed on a top thereof. The conventional armrest structure also contains a handrail 12 which has multiple slots 121 defined on a bottom of the handrail 12 so that each slot 121 accommodates the insertion 111 of said each upright post 11, such that the plurality of upright posts 11 and the handrail 12 are arranged beside the stairs. However, the conventional armrest structure 10 has defects as follows:
1. When said each upright post 11 is not erected on each step face of the stairs exactly, the insertion 111 of said each upright post 11 cannot be accommodated in said each slot 121.
2. The multiple slots 121 are formed on the bottom of the handrail 12 at high accuracy so as to accommodate the plurality of upright posts 12 exactly, thus causing troublesome manufacture process.
3. When one of the plurality of upright posts 11 is broken, the plurality of upright posts 11 are removed from the handrail 12 so as to replace the one upright post 11, thus having inconvenient replacement.
With reference to FIGS. 2 and 3, another conventional armrest structure 20 for a railing contains a plurality of upright posts 21, a handrail, and a horizontal rod, wherein each upright post 21 has a first shaft 211 arranged on a top thereof and has a second shaft 212 formed on a bottom thereof, the handrail has a first stem 22, multiple first notches 221 defined proximate to a bottom of the first stem 22 so that each first notch 221 rotatably connects with the first shaft 211 of said each upright post 21. The first stem 23 fits with a first cover 23 with two first side plates 231, and the two first side plates 231 of the first cover 23 cover two sides of the first stem 22, such that the first shaft 211 of said each upright post 21 is limited in said each first notch 221 of the first stem 22. The horizontal rod has a second stem 24 with multiple second notches 241 so that each second notch 241 rotatably connects with the second shaft 212 of said each upright post 21, and the second stem 24 fits with a second cover 25 having two second side plates 251, and the two second side plates 251 of the second cover 25 cover two sides of the second stem 24, such that the second shaft 212 of said each upright post 21 is limited in said each second notch 241 of the second stem 24. In assembly, the first shaft 211 of said each upright post 21 is rotatably connected with said each first notch 221 of the first stem 22, and the second shaft 212 of said each upright post 21 is rotatably connected with said each second notch 241 of the second stem 24, hence the plurality of upright post 21, the handrail, and the horizontal rod are assembled together. Nevertheless, the armrest structure 20 still has disadvantages as follows:
1. Said each upright post 21, the first stem 22 of the handrail, and the second stem 24 of the horizontal rod are worked firstly to form the first shaft 211, the second shaft 212, the multiple first notches 221 of the first stem 22, and the multiple second notches 241 of the second stem 24, thereafter the first cover 23 and the second cover 25 are manufactured, thus having complicated manufacture process.
2. The first shaft 211 of said each upright post 21 is limited in said each first notch 221 of the first stem 21 by using two first side plates 231 of the first cover 23, and the second shaft 212 of said each upright post 21 is limited in said each second notch 241 of the second stem 24 by way the tow second side plates 251 of the second cover 25, hence when said each upright post 21 is broken, the first cover 23 and the second cover 25 are removed so as to replace said each upright post 21, thereby causing troublesome replacement.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
SUMMARY OF THE INVENTION The primary objective of the present invention is to provide an armrest structure for a railing in which each of a plurality of upright post is rotated to a desired angle relative to a handrail by way of each of multiple first connectors.
Another objective of the present invention is to provide an armrest structure for a railing which when said each upright post is broken, it is replaced easily by using said each first connectors and each of multiple second connectors.
To obtain above objectives, an armrest structure for a railing provided by the present invention contains: at least one upright post, a handrail mounted on the at least one upright post, and multiple first connectors.
Each first connector is defined between each of the at least one upright post and the handrail, said each first connector includes a first connection part and a second connection part, a first end of the first connection part couples with said each upright post, and the first connection part has a first connecting portion extending outwardly from a second end of the first connection part, the second connection part is locked on a bottom of the handrail and has two second connecting portions configured to rotatably connect with the first connecting portion of the first connection part.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross sectional view of a conventional armrest structure for a railing.
FIG. 2 is a perspective view showing the exploded components of another conventional armrest structure for a railing.
FIG. 3 is a cross sectional view showing the assembly of said another conventional armrest structure for the railing.
FIG. 4 is a perspective view showing the exploded components of an armrest structure for a railing according to a first embodiment of the present invention.
FIG. 5 is a perspective view showing the exploded components of a part of the armrest structure for the railing according to the first embodiment of the present invention.
FIG. 6 is a cross sectional view showing the application of the armrest structure for the railing according to the first embodiment of the present invention.
FIG. 7 is a cross sectional view showing the application of an armrest structure for a railing according to a second embodiment of the present invention.
FIG. 8 is a perspective view showing the exploded components of an armrest structure for a railing according to a third embodiment of the present invention.
FIG. 9 is a perspective view showing the exploded components of a part of the armrest structure for the railing according to the third embodiment of the present invention.
FIG. 10 is a cross sectional view showing the application of the armrest structure for the railing according to the third embodiment of the present invention.
FIG. 11 is a cross sectional view showing the application of an armrest structure for a railing according to a fourth embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to FIGS. 4 and 5, an armrest structure 30 for a railing according to a first embodiment of the present invention comprises: a plurality of upright posts 31, a handrail 32 mounted on the plurality of upright posts 31, and multiple first connectors 40, wherein each first connector 40 is defined between each upright post 31 and the handrail 32 so that said each upright post 31 is rotated to a desired angle relative to the handrail 32, and said each first connector 40 includes a first connection part 41 and a second connection part 42, the first connection part 41 is a L-shaped tube or a T-shaped tube, a first end of the first connection part 41 couples with an upper end of said each upright post 31, and the first connection part 41 has a first connecting portion 411 extending outwardly from and perpendicular to a second end of the first connection part 41. In this embodiment, the first connection part 41 has an extension 412 extending on the first end thereof, and the extension 412 is a threaded section so as to screw with the upper end of said each upright post 31 or is a bolt section so as to connect with the upper end of said each upright post 31. The second connection part 42 is locked on a bottom of the handrail 32 by way of two first screw bolts 43 and has two second connecting portions 421 configured to rotatably connect with the first connecting portion 411 of the first connection part 41. In this embodiment, the second connection part 42 is an integrally formed sheet and has an accommodation portion 422 defined on a central position thereof, and the accommodation portion 422 has the two second connecting portions 421 which are concavely arcuate and are integrally arranged on two peripheral sides of the accommodation portion 422 respectively, the first connection part 41 inserts into the accommodation portion 422 of the second connection part 42 and its first connecting portion 411 rotatably connects with the two second connecting portions 421 of the second connection part 42. The second connection part 42 also has a limiting piece 423 extending outwardly from one of the two peripheral sides of the accommodation portion 422 thereof, wherein after the first connection part 41 rotatably fits with the second connection part 42, the limiting piece 423 is bent and abuts against the first connecting portion 411 of the first connection part 41. The second connection part 42 further has two stop pieces 424 integrally extending outward adjacent to the two second connecting portions 421 respectively so as to limit the first connecting portion 411 of the first connection part 41 and to stop a removal of the first connection part 41 from the second connection part 42, and the first connecting portion 411 of the first connection part 41 rotatably connects with the two second connecting portions 421 of the second connection part 42, hence the plurality of upright posts 31 are rotated to the desired angle relative to the handrail 32 by way of the multiple first connectors 40.
Referring to FIG. 6, the handrail 32 is obliquely arranged above stairs and its bottom edge is joined with a reinforcement post 33, and the plurality of the upright posts 31 are adjustably rotated relative to the handrail 32 by way of the multiple first connectors 40, wherein a lower end of said each upright post 31 is secured on each of step faces of the stairs. In this embodiment, a first fitting sleeve 311 is fitted with the lower end of said upright post 31, and multiple second connectors 40 are mounted on the step faces of the stairs (structure of each second connector is identical to said each first connector, so further remarks are omitted) individually, wherein an extension 412 of a first connection part 41 of said each second connector 40 is screwed or connected with the lower end of said each upright post 31, a second connection part 42 of said each second connector 40 is locked on said each step face of the stairs by using two second screw bolts 43, and the first fitting sleeve 311 covers said each second connector 40, thus fixing the armrest structure 30 above the stairs easily. Preferably, the lower end of said each upright post 31 is adjustably rotated to the desired angle relative to the step face of the stairs by using the second connection part 42 of said each second connector 40. In addition, when said each upright post 31 is broken, it is replaced easily by using said each first and second connectors 40.
As shown in FIG. 7, in a second embodiment of the present invention, a second fitting sleeve 312 is fitted with a lower end of each of a plurality of upright posts 31 of an armrest structure 30, and each of multiple second connectors 40 is coupled with a horizontal rod 34, wherein an extension 412 of a first connection part 41 of said each second connector 40 is locked on a lower end of said each upright post 31, and a second connection part 42 of said each second connector 40 is locked on a top of the horizontal rod 34 by using two second screw bolts 43, thereafter the second fitting sleeve 312 covers said each second connector 40, upper ends of the plurality of upright posts 31 are in connection with a handrail 32 by way of multiple first connectors 40 respectively, and lower ends of the plurality of upright posts 31 are coupled with the horizontal rod 34 by using the multiple second connectors 40 individually. Preferably, the plurality of upright posts 31 are replaceable conveniently by means of the multiple first and second connectors 40.
As illustrated in FIGS. 8 and 9, an armrest structure 50 for a railing according to a third embodiment of the present invention comprises: a plurality of upright posts 51, a handrail 52 mounted on the plurality of upright posts 51, and multiple first connectors 60, wherein each multiple first connector 60 is defined between each upright post 51 and the handrail 52 so that said each upright post 51 is rotated to a desired angle relative to the handrail 52, and said each first connector 60 includes a first connection part 61 and a second connection part 62, the first connection part 61 is a L-shaped tube or a T-shaped tube, a first end of the first connection part 61 couples with an upper end of said each upright post 51, and the first connection part 61 has a first connecting portion 611 extending outwardly from and perpendicular to a second end of the first connection part 61. In this embodiment, the first connection part 61 has an extension 612 extending on the first end thereof, and the extension 612 is a threaded section so as to screw with the upper end of said each upright post 61 or is a bolt section so as to connect with the upper end of said each upright post 61. The second connection part 62 is locked on a bottom of the handrail 62 by way of two first screw bolts 63 and has two second connecting portions 621 configured to rotatably connect with the first connecting portion 611 of the first connection part 61. In this embodiment, the second connection part 62 has an accommodation portion 622 defined on a central position thereof and has the two second connecting portions 621 which are concavely arcuate and are integrally arranged on two peripheral sides of the accommodation portion 622 respectively, the first connection part 61 inserts into the accommodation portion 622 of the second connection part 62 and its first connecting portion 611 rotatably connects with the two second connecting portions 621 of the second connection part 62. The second connection part 62 also has a limiting piece 623 welded on a top thereof and has two stop pieces 624 integrally extending outward adjacent to the two second connecting portions 621 respectively so as to limit the first connecting portion 611 of the first connection part 61 and to stop a removal of the first connection part 61 from the second connection part 62, and the first connecting portion 611 of the first connection part 61 rotatably connects with the two second connecting portions 621 of the second connection part 62, hence the plurality of upright posts 51 are rotated to the desired angle relative to the handrail 52 by way of the multiple first connectors 60.
Referring to FIG. 10, the handrail 52 is obliquely arranged above stairs and its bottom edge is joined with a reinforcement post 53, and the plurality of the upright posts 51 are adjustably rotated relative to the handrail 52 by way of the multiple first connectors 60, wherein a lower end of said each upright post 51 is secured on each of step faces of the stairs. In this embodiment, a first fitting sleeve 511 is fitted with the lower end of said upright post 51, and multiple second connectors 60 are mounted on the step faces of the stairs (structure of each second connector is identical to said each first connector, so further remarks are omitted) individually, wherein an extension 612 of a first connection part 61 of said each second connector 60 is screwed or connected with the lower end of said each upright post 51, a second connection part 62 of said each second connector 60 is locked on said each step face of the stairs by using two second screw bolts 63, and the first fitting sleeve 511 fits with said each second connector 60, thus fixing the armrest structure 50 above the stairs easily. Preferably, the lower end of said each upright post 51 is adjustably rotated to the desired angle relative to the step face of the stairs by using the second connection part 62 of said each second connector 60. In addition, when said each upright post 61 is broken, it is replaced easily by using said each first connector 60 and said each second connector 60.
As shown in FIG. 11, in a fourth embodiment of the present invention, a second fitting sleeve 512 is fitted with a lower end of each of a plurality of upright posts 51 of an armrest structure 50, and each of multiple second connectors 60 is coupled with a horizontal rod 54, wherein upper ends of the plurality of upright posts 51 are in connection with a handrail 52 by way of multiple first connectors 60 respectively, and lower ends of the plurality of upright posts 51 are coupled with the horizontal rod 54 by using the multiple second connectors 60 individually. Preferably, the plurality of upright posts 51 are replaceable conveniently by means of the multiple first and second connectors 60.
While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.
