JPH0676581U - Hidden hinge for folding door - Google Patents

Abstract

(57) [Summary] [Purpose] It is designed to reduce the gap between the left and right casing closing surfaces as much as possible.
Therefore, it is possible to provide a concealed hinge for a folding door, which is capable of improving the airtightness in the inside and outside spaces partitioned by doors and doors and improving the appearance. A gap concealing member is provided on at least one of the left and right casings 20A, 20A so as to close a gap formed between the close faces 19 of the opposing casing. Become.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concealed hinge that is foldably connected to each other or a mounting portion thereof and is embedded and fixed so as not to project from an end surface of the folding door.

[0002]

[Prior art]

 As shown in FIG. 12, the hidden hinge a for folding doors is provided with digging holes f and g on the end faces d and e of the folding doors b and c which are adjacent to each other, and the casings h and i are provided in the digging holes f and g. Since it is embedded and fixed, the existence of the hinge a can be hidden from both inside and outside so that it cannot be seen. Specifically, each of the casings h and i embedded and fixed to the end surface of the folding door has a substantially jagged link j pivotally supported at one end and the other end to the other casing. Arranged in such a manner that they intersect with each other, the intersecting portion is pivotally supported, and the other end is connected to the other end of a link whose one end is pivotally supported in the other casing (special feature). (Kaihei 2-240384, etc.) is known.

[0003]

[Problems to be solved by the device]

 By the way, when the above-mentioned hidden hinge a is attached to the folding doors b and c and the door is closed, it is unavoidable that a gap k is generated between the adjacent doors by the folding margin of the door. Since the light on the other side leaks out from the gap k between the doors or a draft is blown, a packing material 1 is attached to the end surface of one door. However, since the packing material 1 is cut off at the part where the hinge is embedded and fixed, the cut gaps m and o still remain at the parts other than the part that is closed by the link j on the opposing closing surfaces of the casings h and i. However, I was not able to cover enough gaps.

In view of the above point, the present invention can reduce the gap between the closing surfaces of the left and right casings as much as possible, thereby improving the sealing property between the folding doors. Intended to provide a hidden hinge for a folding door that can be made to look good.

[0005]

[Means for Solving the Problems]

 A hidden hinge for a folding door according to the present invention for achieving the above-mentioned object includes a link mechanism that is rotatably connected and forms a pair on the left and right, and is pivotally supported on the end surface of the folding door via the link mechanism. A pair of left and right casings that are embedded and fixed and that have a closing surface that is substantially flush with the end surface of the folding door; and a closing surface of the other casing that faces at least one of the left and right casings. It is characterized in that a gap concealing member that closes the gap between and is provided.

In the concealed hinge of the present invention, the gap concealing member is a rib protruding from above and below the one closing surface, and the rib is fitted over the other closing surface in the vertical direction. It is mentioned as a sun in which it is preferable to provide a concave groove.

[0007]

[Action]

 In the concealed hinge according to the present invention configured as described above, there is a gap formed between the mating surface of at least one of the left and right casings and the mating surface of the opposing casing. Since the gap concealing member is provided so as to close the gap, even if there is a gap in the excised portion of the gap concealing between the folding doors, the excision gap is shielded by the gap concealing member in the closed state of the folding door. As a result, the airtightness of the interior and exterior spaces partitioned by folding doors is enhanced, and the interior and exterior look better.

In addition, when a rib is provided on the closed surface, if the recess is formed on the opposing closed surface, the rib is fitted into the recess, which may cause a mounting error or manufacturing tolerance. The gap concealing leak is prevented.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 11 show two types of hidden hinges for folding doors and their components according to the embodiment. Here, FIGS. 1 to 5 show the case in which the gap concealing member is provided in the concealed hinges A and A for folding doors without the vertical position adjusting means, and FIGS. The case where a gap concealing member is provided at the numbers B and B (FIG. 6 shows only one side) is shown.

The hidden hinges A, A, B, B for each folding door are examples of application of each folding door as a partition member, for example, and common parts and corresponding parts are designated by common reference numerals. And redundant description will be omitted.

The hidden hinges A and A for folding doors are provided in the link mechanism 10 used as a common unit and in the digging holes 8b and 9b formed in the closing surfaces (end faces) 8a and 9a of the folding doors 8 and 9, respectively. It is provided with casings 20A and 20A which are embedded and fixed and which form a pair on the left and right, and a catch mechanism 40 which is used as a common unit incorporated in the casing 20A. Here, among the casings 20A and 20A having the same configuration shown in FIG. 1, the left one is treated as a normal posture and the right one is treated as an inverted posture.

In the link mechanism 10, the left and right pair of link members 12 and 12 of the same configuration, which form a pair of left and right and have a pair of left and right, are crossed with each other by vertically shifting the positions. It has a hinge-type structure in which the pins 11 are inserted into the pin insertion holes 16 so as to be rotatable relative to each other. The link members 12, 12 each include a column portion 13 and two link pieces 14, 14 that extend horizontally from the column portion 13. The link members 12, 12 have insertion holes 17 at one end of the left and right link members 12, 12. The shaft pin 21 is inserted into the insertion hole 22 that is vertically drilled in the casing 20A so as to pass through the insertion hole 17 so that the left and right casings 20A and 20A are linked. The mechanism 10 is connected so as to be relatively rotatable.

Further, an engaging recess 14b, which is a component of a catch mechanism 40 described later, is formed on the side surface of the base end of each of the link pieces 14 and maintains an appropriate folding angle when the folding door is running. An engaging recess 14a is formed for this purpose. In addition, washers are appropriately arranged at each contact portion at the intersection of the link pieces 14 in order to suppress rotational wear and friction noise.

The casing 20A has insertion holes 24, 24 with counterbore portions into which upper and lower ends of the casing 20A, into which fixing screws 50 common to the respective hinges are inserted, are formed. One of the insertion holes 24, 24 (regular Adjacent to the lower one (in the posture), a female screw portion 29 with a counterbore portion into which a meandering adjusting screw 39 common to each hinge is inserted is formed. In addition, a slide chamber 25 having guide grooves 26, 26 for slidingly guiding the short columnar convex portions 15, 15 projecting above and below the column portion 13 of the link member 12 is provided at the central portion of the casing 20A. A mounting hole 27 is provided on the side of the slide chamber 25 for mounting the catch mechanism 40.

Then, the closed position (front end face) 19 of the casing 20A is offset to one side (toward the left in the normal position) of the closing face 19 so as to fill the gap generated when the hidden hinges A and A are closed. In addition, a concave strip 31 having a semicircular cross section as a gap concealing member is provided above the slide chamber 25, and a semicircular cross section as a gap concealing member that fits into the concave strip 31 below the slide chamber 25. A rib 32 extending in the up and down direction is projected. In the inverted posture, the concave line 31 and the rib 32 are in opposite positions.

The catch mechanism 40 includes a slider 41 having an “I” shape in a side view and a tip end portion 41 a having a pointed V-shaped cross section, and spring chambers 43, 43 provided in the slider 41. The distal end portion is inserted and a coil spring 45 for constantly biasing the slider 41 forward is provided. Although detailed description of the operation and the like of the catch mechanism 40 will be omitted, if necessary, a similar structure is disclosed in the specification of Japanese Patent Application No. 4-62991 by the applicant of the present application.

The hidden hinges B and B for folding doors are the link mechanism 10 as shown in FIGS. 6 to 11, and the digging holes formed in the closing surfaces (end surfaces) 8a and 9a of the folding doors 8 and 9. It is provided with casings 20B and 20B of the same configuration which are embedded in and fixed to 8b and 9b, and which form a pair on the left and right, and a catch mechanism 40 used as a common unit incorporated in the casing 20B. Here, of the casings 20B and 20B having the same configuration shown in FIG. 6, the left one is treated as a normal posture, and the right one is treated as an inverted posture.

The casing 20B has a divided structure including a casing body 20a and a vertical position adjusting member 30 attached to the casing body 20a. The casing body 20a has an ashtray-shaped mounting portion 34 with a flange in cross-section in which the vertical position adjusting member 30 is mounted in the vertical direction with some margin in the vertical direction. A female screw portion 38 to which an adjusting screw 35 for adjusting the vertical position described later is screwed is provided on the rear side surface portion of the mounting recesses 34a, 34a located above and below the front portion of the mounting portion 34, and thereafter. The surface of the side surface portion is formed as a non-slip portion 37 having fine irregularities.

Insertion holes 24, 24 with counterbore portions into which the fixing screws 50 are inserted are formed above and below the mounting recess 34a in the casing body 20a, and the insertion holes are formed. A female screw portion 29 with a counterbore portion into which a screw 39 for meandering adjustment common to each hinge is inserted is formed adjacent to one of 24, 24 (the lower one in the normal position), and further, the above-mentioned casing. A recess 31 and a rib 32 having the same shape are provided at the same position as 20A.

On the other hand, the vertical position adjusting member 30 is provided with an insertion hole 22, a slide chamber 25, a guide groove 26, and a mounting hole 27, which have the same configuration as the above-mentioned respective parts provided in the casing 20A, and are vertically arranged. Elongated holes 36, 36 with counterbore parts are formed in the protruding collar-shaped parts 33, 33 into which an adjusting screw 35 for vertical position adjustment is inserted.

The vertical position adjusting member 30 is entirely pushed into the mounting portion 34 so that the collar-shaped portions 33, 33 are fitted into the mounting concave portions 34a, 34a of the casing body 20b, and the elongated holes 36, 36 are removed. The adjusting screws 35, 35 are screwed into the female screw portion 38 via the screw and tightened to be assembled to the casing body 20a. Then, the adjusting screws 35, 35 are loosened, and the casing body 20a fixed to the doors 8, 9 is moved up and down with respect to the vertical position adjusting member 30 within the range of the longitudinal length of the slot 36. Therefore, the vertical positions of the doors 8 and 9 are adjusted.

Although not shown, the concealed hinges for folding doors A and B assemble a casing 20A having a link mechanism 10 and a catch mechanism 40 and no vertical position adjusting means, and a casing 20B having both vertical position adjusting means. It is a thing.

In the concealed hinges for folding doors A, A, B, B, and A and B of each of the above-described embodiments, when the hinges are closed, the mating surfaces 19 and 19 of the casings 20A and 20B are mutually closed. Since the ribs 32 close the gaps generated between the doors, light leakage between the doors 8 and 9 is prevented, and in a folding door or the like used as a partition, the airtightness is improved and the appearance is improved. Further, since the concave portions 31 into which the ribs 32 are fitted are provided in the opposing blade units, concave and convex fitting can be performed.

Further, since the concave streak 31 and the rib 32 are symmetrically provided on the upper and lower sides of the link mechanism 10, the casings 20A and 20B are not replaced, and the assembly is easy. Becomes

The structure of the hidden hinge for the folding door and the structure of the ribs 32 and the recesses 31 are not limited to those described above, and it goes without saying that various modifications can be made. For example, when the rib 32 is not provided with the meandering adjusting screw 39, the rib 32 can be extended to the other end, and can be provided above and below the closing surface 19 near the other end. Further, in addition to the ribs 32 and the recessed ridges 31, a member that can hide the gap can be provided on the closing surface 19 for implementation.

[0026]

[Effect of device]

 As described above, the concealed hinge for the folding door according to the present invention has a gap formed between at least one closing surface of the left and right casings and the closing surface of the opposing blade unit. Since the gap concealing member is provided so as to close it, the excision gap of the gap concealing can be blocked, preventing the leakage of light in the conventional way and preventing the light from leaking. Can be improved. In addition, when a rib is provided on the closing surface of the casing and a concave portion into which the rib is fitted is formed on the facing surface of the opposing casing, the rib is fitted into the concave portion, so that the complete gap concealment can be hidden. Can be done.

[Brief description of drawings]

FIG. 1 is a perspective view showing an open state of hidden hinges A and A for folding doors according to an embodiment.

FIG. 2 is a cross-sectional view showing the closed state of the folding hinges A and A of the embodiment, taken along line XX of FIG.

FIG. 3 is a front view showing a closed state of the folding door using the hidden hinges A and A for folding doors of the embodiment.

FIG. 4 is an exploded perspective view of hidden hinges A and A for folding doors according to the embodiment.

FIG. 5 is a cross-sectional view showing the open / closed state of the folding door hidden hinges A and A according to the embodiment, taken along line YY of FIG.

FIG. 6 is a perspective view showing an opened state of hidden hinges B and B for folding doors of the embodiment.

FIG. 7 is a cross-sectional view showing a closed state of folding hinges for folding doors B and B according to the embodiment, taken along line XX of FIG.

FIG. 8 is a front view showing a closed state of the folding door using the hidden hinges B and B for folding doors of the embodiment.

FIG. 9 is an exploded perspective view of one casing of the hidden hinges B and B for folding doors according to the embodiment.

FIG. 10 is a cross-sectional view showing the opened / closed state of the folding hinge hidden hinges B and B according to the embodiment, taken along line YY of FIG. 6;

FIG. 11 is a partial cutaway view of the hidden hinges B and B for folding doors of the embodiment.

FIG. 12 is a front view showing a closed state of a conventional folding door.

[Explanation of symbols]

10 Link Mechanism 12 Link Member 19 Closing Faces 20A, 20B Casing 30 Vertical Position Adjusting Member 31 Recessed Strip 32 Rib 40 Catch Mechanism A / A Concealed Hinge for Folding Door without Vertical Position Adjusting Means B / B Both Side Vertical Adjusting Means Hidden hinge for folding door

Claims (3)

[Scope of utility model registration request] 1. A link mechanism that is rotatably connected and forms a pair on the left and right, and is pivotally supported by the link mechanism so as to be openable and closable, embedded in and fixed to the end surface of the folding door, and substantially flush with the end surface of the folding door. In a folding door concealed hinge including a pair of left and right casings having a closing surface, a gap concealing member for closing a gap between at least one closing surface of the pair of left and right casings and a closing surface of the other opposing casing. A hidden hinge for folding doors, which is characterized by being provided with. 2. The concealed hinge for a folding door according to claim 1, wherein the gap concealing member is a rib protruding in the vertical direction of one of the closing surfaces. 3. The concealed hinge for a folding door according to claim 2, wherein a recessed line into which a rib is fitted is provided in the vertical direction of the other closing surface.