Patent Application
20120079682
1. Field of the Invention
The present invention relates to an adjustable hinge assembly for a glass door, and more particularly to an adjustable hinge assembly for a glass door to steadily adjust a position of a glass door relative to a doorframe.
2. Description of Related Art
A conventional hinge assembly for a glass door is used to connect a glass door to a doorframe and has a frame bracket, an adjustable device and two plates. The frame bracket can be secured on the doorframe. The adjustable device is connected with the frame bracket and the plates to allow the plates to pivot relative to the frame bracket. The plates are connected securely to each other via bolts and clamp the glass door. Accordingly, the glass door can be pivoted relative to the doorframe via the conventional hinge assembly.
However, the glass door may be misaligned with and cannot completely close the doorframe due to an assembling inaccuracy of the conventional hinge assembly. The conventional hinge assembly always has a capability of adjusting a position of the glass door relative to the doorframe and achieved by a single adjusting screw. However, the conventional hinge assembly is not stable because the single screw cannot provide a sufficient force to the frame bracket. Therefore, the glass door should be repositioned by the conventional hinge assembly frequently, and this is inconvenient.
To overcome the shortcomings, the present invention tends to provide an adjustable hinge assembly for a glass door to mitigate the aforementioned problems.
The main objective of the invention is to provide an adjustable hinge assembly for a glass door to steadily adjust a position of a glass door relative to a doorframe.
An adjustable hinge assembly for a glass door has a frame fastening device, a door clamping device and an adjustable device. The frame fastening device is mounted securely to a doorframe and has two pivot sections protruding from the frame fastening device. The door clamping device clamps a glass door. The adjustable device has two pins mounted between and respectively pressing against the pivot sections. Because two pins respectively press against the pivot sections, pressing forces provided by the pins are sufficient and the structure of the adjustable hinge assembly for a glass door is enhanced. Accordingly, to frequently adjust the position of the glass door relative to the doorframe is unnecessary.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
The frame fastening device 1 has a first bracket 10 and a second bracket 11. The first bracket 10 has multiple bracket holes which are formed through the first bracket 10 and through which bolts are respectively mounted, and the frame fastening device 1 can be secured on a doorframe 4 with the first bracket 10 and the bolts as shown in
The second bracket 11 is mounted on the first bracket 10 and has two pivot sections 111, a chunk space 112 and two section holes 113. The pivot sections 111 are separated from and parallel to each other. One of the pivot sections 111 is located above the other. The chunk space 112 is formed between the pivot sections 111. The section holes 113 are respectively formed through the pivot sections 111 and align with each other.
Preferably, the first bracket 10 and the second bracket 11 are two separate parts combined securely with each other via bolts 12. Alternatively, the first bracket 10 and the second bracket 11 may be formed as a single part. The present invention does not limit the implementation of the frame fastening device 1.
With reference to
The positioning section 201 protrudes from the side surface of the first plate 20. The first notch 202 is formed in the positioning section 201, holds the pivot sections 111 and has a bottom. The spring recesses 203 are respectively formed in the bottom of the first notch 202. The spring recesses 203 are separated from and parallel to each other. One of the spring recesses 203 is located above the other. The threaded holes 204 are formed in the first plate 20. The pivot hole 205 is formed through the positioning section 201 and communicates with the first notch 202.
The second plate 21 is connected securely with the first plate 20 to clamp a glass door 5 as shown in
With reference to
The chunk 30 is mounted in the chunk space 112 and has an outer surface, a chunk hole 301, an aperture 302, an adjusting hole 303 and three concave sections 304.
The outer surface of the chunk 30 may be arcuated. The chunk hole 301 is longitudinally formed through the chunk 30. The aperture 302 is longitudinally formed through the chunk 30 at a position beside the chunk hole 301. The adjusting hole 303 is threaded, is radially formed in the chunk 30 and communicates with the aperture 302. The concave sections 304 are at intervals formed longitudinally in the outer surface of the chunk 30.
The pivot 31 is longitudinally mounted in the pivot hole 205 and is mounted through the section holes 113 and the chunk hole 301. The bushings 311 are respectively mounted in the section holes 113, are inserted into the chunk hole 301 and are mounted around the pivot 31.
With further reference to
The adjusting screw 33 is screwed into the adjusting hole 303 and has a tool end 331 and a conical pressing end 332. The tool end 331 has a tool recess formed in the tool end 331, and a tool 6 can be inserted into the tool recess to rotate the adjusting screw 33 as shown in
The conical pressing end 332 is opposite to the tool end 331 and presses against the conical ends 322 of the pins 32. With the conical pressing end 332 and the conical ends 322, the pressing end 332 can push the conical ends 322 of the pins 32 to make the abutting ends 321 respectively abutting tightly with the pivot sections 111. With the tight abutment between the abutting ends 321 and the second bracket 11, the chunk 30 is kept from rotating relative to the pivot 31.
The positioning unit 34 abuts the outer surface of the chunk 30. Preferably, the positioning unit 34 has a rod 341 and a wheel 342. The rod 341 has two ends and a central segment. The central segment of the rod 341 is formed between the ends of the rod 341. The wheel 342 is rotatably mounted around the central segment of the rod 341 and abuts the outer surface of the chunk 30. The wheel 342 can selectively abut one of the concave sections 304. The springs 35 are mounted in the first notch 202. Each spring 35 has a first end and a second end. The first ends of the springs 35 are respectively mounted in the spring recesses 203 and abut the first plate 20. The second ends are respectively opposite to the first ends of the springs 35 and respectively abut the ends of the positioning rod 341. The springs 35 provide pressing forces to push the positioning unit 34 to abut the chunk 30.
With reference to
With reference to
After the adjusting screw 33 is screwed into the adjusting hole 303 with the tool 6, the pressing end 332 of the adjusting screw 33 presses against the conical ends 322 of the pins 32 again. Consequently, the abutting ends 321 respectively tightly press against the pivot sections 111 and two shallow recesses are respectively formed in the pivot sections 111. With the corners 324 biting the inner surfaces of the shallow recesses of the pivot sections 111, the chunk 30 can be secured in the chunk space 112. An adjustment of the glass door 5 relative to the doorframe 4 is achieved.
Additionally, when glass door 5 is opened or closed relative to the doorframe 4, the glass door 5 is pivoted relative to the doorframe 4 with a center at the pivot 31. During the pivotal rotation of the glass door 5, the wheel 342 will be moved along the outer surface of the chunk 30. With the engagement between the wheel 342 with one of the concave sections 304 in the chunk 30, the glass door 5 can be positioned at different positions relative to the doorframe 4.
From the above description, it is noted that the present invention has the following advantage:
1. Enhanced structure:
Because two pins 32 are mounted on the chuck 30 for holding the chunk 30 at a position relative to the pivot sections 111 of the second bracket 11, the pressing forces provided by the pins 32 are sufficient and the structure of the adjustable hinge assembly for a glass door is enhanced and stable. Accordingly, to frequently adjust the position of the glass door 5 relative to the doorframe 4 is unnecessary. Moreover, the cross grooves 323 and the corners 324 defined in the pins 32 can provide biting forces and sufficient friction to make the pins 32 pressing tightly with the pivot sections 111.
2. Smooth relative rotation between the glass door 5 and the doorframe 4:
With the wheel 342 being rotatably mounted around the central segment of the rod 341 and abutting the chunk 30, the rotation between the glass door 5 and the doorframe 4 is smooth. Moreover, the concave sections 304 can provide a positioning effect to the glass door 5 relative to the doorframe 4.
