Glass door stopper

Abstract

To provide a glass door stopper capable of preventing the glass door from being broken.SOLUTION: A glass door stopper 1 restricts a glass door G, which opens / closes relative to a door frame F, to a maximum opening angle θ. The glass door stopper 1 includes a frame mounting fixture 2, a pivoting arm member 3, and a door mounting fixture 4. The frame mounting fixture 2 is attached to the door frame F. The pivoting arm member 3 pivots relative to the frame mounting fixture 2 in accordance with the opening / closing of the glass door G. The door mounting fixture 4 is attached to the glass door G. The pivoting arm member 3 extends in a longitudinal direction 31. The pivoting arm member 3 has a guide opening 30. The guide opening 30 guides the door mounting fixture 4 along the longitudinal direction 31 in accordance with the opening / closing of the glass door G. The glass door stopper 1 further comprises an impact absorbing member 5. The impact absorbing member 5 absorbs an impact between the door mounting fixture 4 and the guide opening 30 when the glass door G reaches the maximum opening angle θ.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a stopper for a glass door.

Background Art

[0002] A door stopper such as a stopper for a glass door regulates a door that opens and closes with respect to a door frame at a maximum opening degree. Patent Document 1 describes a door stopper (a stopper for an opening and closing door) having a link mechanism.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, the door stopper described in Patent Document 1 is assumed for the case where the door is thin, that is, the door is light. For this reason, the stopper described in Patent Document 1 does not sufficiently consider the impact caused by the weight of the door.

[0005] Therefore, when the door stopper described in Patent Document 1 is adopted for a heavy door such as a glass door, a large impact occurs on the door. In particular, a glass door may be damaged due to an excessive impact.

[0006] From the above, when the door stopper described in Patent Document 1 is adopted for a glass door, there is a risk of damaging the glass door.

[0007] The present invention has been made in view of the above problems, and an object thereof is to provide a stopper for a glass door that can prevent damage to the glass door.

Means for Solving the Problems

[0008] The glass door stopper according to one aspect of the present invention restricts the glass door that opens and closes with respect to the door frame to its maximum opening degree. The glass door stopper includes a frame fixture, a rotating arm member, and a door fixture. The frame fixture is attached to the door frame. The rotating arm member rotates with respect to the frame fixture in accordance with the opening and closing of the glass door. The door fixture is attached to the glass door. The rotating arm member has a longitudinal direction. The rotating arm member has a guide opening. The guide opening guides the door fixture in accordance with the opening and closing of the glass door along the longitudinal direction. The glass door stopper further includes a shock absorber. The shock absorber absorbs the shock between the door fixture and the guide opening when the glass door reaches its maximum opening degree.

Advantages of the Invention

[0009] According to the glass door stopper of the present invention, breakage of the glass door can be prevented.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and the description will not be repeated.

[0012] In the following description, terms indicating specific positions and directions, such as "upper," "lower," "vertical," and "horizontal," may be used. However, these terms are used for convenience to facilitate understanding of the contents of the embodiments, and do not relate to the directions in which the embodiments are actually implemented. <Embodiment>

[0013] The glass door stopper 1 according to this embodiment will be described with reference to Fig. 1. Fig. 1 is a top perspective view showing a state in which the glass door G on which the glass door stopper 1 is installed is opened to the maximum opening angle θ.

[0014] As shown in Figure 1, the glass door stopper 1 restricts the opening and closing of a glass door G relative to a door frame F at a maximum opening angle θ. The glass door stopper 1 includes a frame mounting fixture 2, a pivot arm member 3, and a door mounting fixture 4.

[0015] The frame fixture 2 is attached to the door frame F. The pivoting arm member 3 pivots relative to the frame fixture 2 in accordance with the opening and closing of the glass door G. The door fixture 4 is attached to the glass door G.

[0016] The pivoting arm member 3 has a longitudinal direction 31 and a lateral direction 32. The pivoting arm member 3 has a guide opening 30. The guide opening 30 guides the door mounting fixture 4 along the longitudinal direction 31 in accordance with the opening and closing of the glass door G.

[0017] The glass door stopper 1 further includes an impact absorbing material 5. The impact absorbing material 5 absorbs the impact between the door mounting fixture 4 and the guide opening 30 when the glass door G reaches the maximum opening angle θ.

[0018] The glass door stopper 1 can prevent breakage of the glass door G by absorbing the impact between the door mounting fixture 4 and the guide opening 30 with the impact absorbing material 5. Furthermore, the glass door stopper 1 can improve quietness by absorbing the impact between the door mounting fixture 4 and the guide opening 30 with the impact absorbing material 5.

[0019] The maximum opening angle θ is the angle formed by the surface surrounded by the door frame F and the front and back surfaces of the glass door G in the most open state. The maximum opening angle θ is set at an arbitrary angle. The maximum opening angle θ is, for example, about 90° (specifically 87.2°), 80°, or 70°, etc.

[0020] The door frame F has at least one upper frame U and two vertical frames L. The glass door G is attached to one of the vertical frames L so as to be openable and closable by a hinge H. The frame fixture 2 is attached to the lower surface of the upper frame U. The door fixture 4 is attached to the upper end of the glass door G. The door fixture 4 is attached to the butt side rather than exactly in the middle of the lateral width of the glass door G.

[0021] Hereinafter, with reference to FIGS. 2 and 3, the glass door stopper 1 will be described in detail. FIG. 2 is an enlarged upper perspective view of the glass door stopper 1. FIG. 3 is an exploded lower perspective view of the glass door stopper 1.

[0022] As shown in FIG. 2, the door fixture 4 of the glass door stopper 1 has a sandwiching member 40, a shaft member 41, and a guided member 43.

[0023] The sandwiching member 40 sandwiches the front and back surfaces of the glass door G. The shaft member 41 is provided on the sandwiching member 40. The shaft member 41 passes through the notch N from the upper end of the glass door G. The guided member 43 protrudes upward from the sandwiching member 40. The guided member 43 is guided in the guide opening 30.

[0024] The glass door stopper 1 can prevent displacement from the glass door G by the shaft member 41 passing through the notch N of the glass door G. Further, since the shaft member 41 passes through the notch N instead of the through hole of the glass door G in the glass door stopper 1, stress concentration on the glass door G is suppressed, and as a result, breakage of the glass door G can be further prevented.

[0025] The shock absorbing material 5 is arranged so as to surround the guided material 43. The shock absorbing material 5 arranged so as to surround the guided material 43 reduces the generation of noise caused by sliding between the guided material 43 and the guide opening 30, even when the guided material 43 is being guided into the guide opening 30. Therefore, the glass door stopper 1 can further improve noise reduction.

[0026] 2 and 3, the door mounting fixture 4 further has a plate-shaped buffer material 61 between the sandwiching material 40 and the front and back surfaces of the glass door G. The plate-shaped buffer material 61 absorbs the impact from the sandwiching material 40 that occurs on the glass door G when the glass door G is opened. Therefore, the glass door stopper 1 can further prevent the glass door G from being broken.

[0027] The door mounting device 4 further has a ring-shaped buffer material 68 between the shaft material 41 and the notch N from the top end of the glass door G. The ring-shaped buffer material 68 absorbs the impact from the shaft material 41 that occurs on the glass door G when the glass door G is opened. Therefore, the glass door stopper 1 can further prevent the glass door G from breaking.

[0028] The frame mounting fixture 2 has an upper plate member 21 and a lower plate member 22, a plurality of (four as an example in Figures 2 and 3) flat head screws 23, a pivot pin 24, and a pivot stopper 25. The upper plate member 21 and the lower plate member 22 have a plurality of (four as an example in Figures 2 and 3) vertical through holes 20. Each flat head screw 23 passes from bottom to top through each vertical through hole 20 and fixes the upper plate member 21 and the lower plate member 22 to the upper frame U. The pivot pin 24 passes from bottom to top through the pivot arm member 3 and the lower plate member 22, but does not protrude upward from the upper plate member 21. The pivot stopper 25 prevents the pivot pin 24 from coming out of the pivot arm member 3, the lower plate member 22, and the upper plate member 21. Although not shown, the rotation stopper 25 includes, for example, a washer made of resin (eg, POM) and an E-ring made of metal (eg, stainless steel).

[0029] The clamping member 40 has a bracket base 47, a bracket cover 46, and multiple clamping screws 49 (two as an example in Figures 2 and 3). The bracket base 47 has an inverted L-shape when viewed from the side. The bracket base 47 has a horizontal plate member 47h and a vertical plate member 47v that form the inverted L-shape. The horizontal plate member 47h has a guided member 43 on its upper surface. The vertical plate member 47v has a horizontal through-hole 48. The vertical plate member 47v faces one of the front and back surfaces of the glass door G. The bracket cover 46 faces the other of the front and back surfaces of the glass door G. The bracket cover 46 has multiple (two as an example in Figures 2 and 3) shaft members 41 that are provided along the horizontal direction of the glass door G. Each clamping screw 49 passes through the horizontal through-hole 48 and the notch N from the upper end of the glass door G, and is screwed into a threaded hole 41 b formed in the center of each shaft member 41 .

[0030] As shown in FIG. 2, the guided material 43 has a guided pin 44 and a guided removal stopper 45. The guided pin 44 passes from bottom to top through the horizontal plate member 47h and the guide opening 30. The guided removal stopper 45 prevents the guided pin 44 from coming out of the guide opening 30. The guided removal stopper 45 has, for example, a washer 45w made of resin (e.g., POM) and metal (e.g., stainless steel), and an E-ring 45e made of metal (e.g., stainless steel). The washer 45w has a diameter larger than the width of the guide opening 30 in the short direction 32.

[0031] The shock absorbing material 5 is a roller 5 arranged to surround the guided pin 44. The roller 5 is rotatable relative to the guided pin 44. Because the roller 5 is rotatable, it is smoothly guided into the guide opening 30. The roller 5 is made of resin (e.g., POM) or rubber (e.g., EPDM) to absorb impact with the guide opening 30. The roller 5 has a diameter smaller than the width of the guide opening 30 in the short direction 32.

[0032] As shown in FIG. 3, the door fixture 4 further has an upper-end buffer 67 in addition to the plate-shaped buffer 61 and the ring-shaped buffer 68. The upper-end buffer 67 is disposed between the horizontal plate member 47h and the upper end of the glass door G. The upper-end buffer 67 may be formed in an inverted L shape integrally with the plate-shaped buffer 61 on the side of the vertical plate member 47v.

[0033] Hereinafter, with reference to FIGS. 4 and 5, the adjustment of the maximum opening angle θ of the glass door G will be described. FIG. 4 is a plan view of the glass door G and the glass-door stopper 1 with the maximum opening angle θ of about 90°. FIG. 5 is a plan view of the glass door G and the glass-door stopper 1 with the maximum opening angle θ of 70°.

[0034] As shown in FIG. 4, the glass door G and the glass-door stopper 1 are set so that the maximum opening angle θ becomes about 90° (specifically, 87.2°). That is, a notch N is formed from the upper end of the glass door G at the position of the door fixture 4 where the maximum opening angle θ becomes about 90° (specifically, 87.2°). By attaching the door fixture 4 to the glass door G so that the shaft member 41 passes through the notch N from the upper end of the glass door G, the maximum opening angle θ is set to about 90° (specifically, 87.2°).

[0035] As shown in FIG. 5, the glass door G and the glass-door stopper 1 are set so that the maximum opening angle θ becomes 70°. That is, a notch N is formed from the upper end of the glass door G at the position of the door fixture 4 where the maximum opening angle θ becomes 70°. By attaching the door fixture 4 to the glass door G so that the shaft member 41 passes through the notch N from the upper end of the glass door G, the maximum opening angle θ is set to 70°.

[0036] Therefore, it is possible to change the maximum opening angle θ according to the position where the notch N is formed from the upper end of the glass door G. When setting the maximum opening angle θ to be large, the notch N is formed on the door-jamb side from the upper end of the glass door G. When setting the maximum opening angle θ to be small, the notch N is formed on the door-tip side from the upper end of the glass door G.

[0037] The embodiments of the present invention have been described above with reference to the drawings. However, the embodiments are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of claims rather than the foregoing description, and it is intended that all modifications within the meaning and scope equivalent to the scope of claims be included. Among the configurations described in the embodiments, those other than the configuration described as the invention of the first aspect in "Means for Solving the Problems" can be arbitrary configurations and can be deleted and changed as appropriate.

[0038] Incidentally, in the embodiment, the roller 5 made of resin or rubber has been described as the shock absorber 5, but other materials and shapes may be used as long as they can absorb shock.

Industrial Applicability

[0039] The present invention provides a stopper for a glass door and has industrial applicability.

Explanation of Reference Numerals

[0040] F Door frame G Glass door N Notch θ Maximum opening 1 Stopper for glass door 2 Frame fixture 3 Rotating arm member 4 Door fixture 5 Shock absorber 30 Guide opening 31 Longitudinal direction 40 Clamping material 41 Shaft member 43 Guided member 61 Plate-shaped buffer 68 Ring-shaped buffer

Claims

1. A glass door stopper for restricting the maximum opening degree of a glass door that opens and closes with respect to a door frame, comprising: a frame fixture attached to the door frame; a rotating arm member that rotates with respect to the frame fixture in accordance with the opening and closing of the glass door; a door fixture attached to the glass door; and the rotating arm member has a guiding opening that guides the door fixture in accordance with the opening and closing of the glass door along its longitudinal direction; the glass door stopper further comprises a shock absorber that absorbs the impact between the door fixture and the guiding opening when the glass door reaches its maximum opening degree.

2. The door fixture comprises: a clamping material that clamps the front and back surfaces of the glass door; a shaft member provided on the clamping material and passing through a notch from the upper end of the glass door; and a guided member that protrudes upward from the clamping material and is guided by the guiding opening. The glass door stopper according to claim 1.

3. The shock absorber is disposed so as to surround the guided member. The glass door stopper according to claim 2.

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