JPH076482U - Wooden door - Google Patents

Abstract

(57) [Abstract] [Purpose] A frame a for a wooden door using a core material that does not warp due to temperature or humidity differences between adjacent rooms.
To form. [Structure] A plurality of straight members 2a to 2c having a predetermined thickness are stacked so that the fiber directions X thereof do not intersect, and a plywood 3 is interposed between adjacent straight members 2a, 2b, 2b, 2c. Then, the straight materials 2a to 2c and the plywoods 3 and 3 are bonded and integrated to produce laminated core materials 1a and 1b. The ends of the short core material 1a and the long core material 1b are joined together to produce a frame a. The front body b is attached to the front and back of the frame a to form the door body A.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wooden door, and more particularly, to an improvement of a core material forming a frame body provided in a peripheral portion of a door body.

[0002]

[Prior art]

 Generally, a rectangular frame-like frame is formed around the periphery of a wooden door by joining the ends of the core material cut along the upper edge, the lower edge, and the left and right side edges of the door body by an appropriate fixing means. The door body is constructed by disposing the body and fixing the outer material to the front and back of the frame. Since the conventional core material has a single-layer structure made of square timber of a predetermined size made from desired wood, artificial drying is performed to prevent deformation and stress is removed and humidity is adjusted.

[0003]

[Problems to be solved by the device]

 However, according to a conventional wooden door that uses a single-layer core material obtained by simply cutting a square bar into a predetermined length as described above, there is no difference in temperature or humidity between the core material and the adjacent room. Therefore, warpage is likely to occur, and there is a risk that the door body may be bent, and the door may not be tightened. The present invention has been made in view of such conventional circumstances, and the purpose thereof is to use a core material that is not likely to warp due to a temperature difference or a humidity difference from an adjacent room. To form a frame for a door.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the wooden door of the present invention is constructed by stacking a plurality of straight members having a predetermined thickness so that their fiber directions do not intersect with each other. It is characterized in that it is formed of a laminated core material in which plywood is interposed between the adjacent and adjacent straight materials and the straight material and the plywood are bonded and integrated. The above-mentioned straight material refers to a plate material made of desired wood and having an arbitrary thickness, and its fiber direction runs uniformly in the longitudinal direction of the plate material.

[0005]

[Action]

 According to the above configuration, since the core material is a laminated body in which a plurality of straight materials are stacked, the respective straight materials prevent mutual deformation, and at the same time, the plywood is interposed between the respective straight materials. Prevents deformation of each straight material, and effectively prevents warpage deformation of the core material due to the synergistic effect of these two effects.

[0006]

【Example】

 Hereinafter, an embodiment of a wooden door according to the present invention will be described with reference to the drawings. The door body A shown in FIG. 1 is configured by arranging a frame body a on the peripheral portion of the door body A, and fixing a surface material b to the front and back of the frame body a. The outer material b is composed of a vertically long rectangular plate-shaped plate material, a decorative plate, plywood, etc., which are usually used in this type of technical field, and are integrally joined to both the front and back surfaces of the frame body a by using an appropriate means.

The frame a is composed of a short-shaped core member 1a arranged along the upper and lower edges of the door body A, and a long-shaped core member arranged along the left and right side edges, respectively. The end portions of the core material 1b and the core material 1b are connected to each other by a desired means such as bonding, nailing, bolting, etc., and the respective core materials 1a, 1b are formed in a laminated shape as shown in FIGS. To be done.

That is, each of the core materials 1a and 1b is made up of a plurality of straight materials 2a, 2b and 2c having a predetermined thickness, and the straight materials 2a and 2b which are adjacent to each other so that their fiber directions X do not intersect. , 2b, 2c are laminated with the wood grain Y facing each other in opposite directions, and the plywoods 3, 3 are interposed between the adjacent straight woods 2a, 2b, 2b, 2c, and the straight woods 2a to 2c. And plywood 3 and 3 are bonded and integrated to form a laminate. In this embodiment, the three straight members 2a to 2c, which are appropriately thickened, are stacked as described above, and they are joined and integrated by the adhesive 4 or the like, and the outer two straight members 2a are joined together. , 2c are provided with vertical grooves 5 from the opposite side surfaces in close proximity to the joint surface with the intermediate straight material 2b, and plywood 3 is filled in each vertical groove 5 and bonded with an adhesive 4 or the like. The core materials 1a and 1b are formed integrally.

The straight materials 2a to 2c are plate materials of desired thickness, in the present embodiment, made of softwood such as red pine or other small diameter trees, and having an arbitrary thickness, and the fiber direction X thereof is uniform in the plate longitudinal direction. In order to prevent deformation, artificial drying is performed to reduce stress and humidity is adjusted.

Further, in the present embodiment, as shown in the drawing, end materials Z1 and Z2 of various lengths are joined and integrated by an adhesive or the like, and the end joining surface Z10 has a sawtooth shape as shown in the figure. The so-called finger joint means is adopted to form the respective straight members 2a to 2c. Adopting such a joining means provides greater joining strength than, for example, a normal joint means in which the end joining surface has a vertical surface shape or a scarf joint means in which the joining surface has an inclined surface shape. To be At the same time, it becomes possible to offset the stress of each end material Z1 and Z2, which tends to deform in different directions depending on the growth conditions, and suppress the deformation, further improving the effect of suppressing warpage deformation described later. Can be expected.

The plywood 3 is a laminated structure composed of well-known veneered plywood, but in this embodiment, a plywood laminated with three veneers 3a, 3b, 3c is used, and two outer plywoods are used. Arranged so that the fiber direction of the veneers 3a and 3c is orthogonal to the fiber direction X of the straight materials 2a and 2c, and the fiber direction of the intermediate veneer 3b is parallel to the fiber direction X of the straight materials 2a and 2c. I'm sorry. That is, in the case of the plywood 3 in FIG. 3, the fiber direction X of the straight material 2a or 2c extends in the front-back direction in the same figure, whereas the fiber direction of the two outer veneers 3a, 3c in the plywood 3 is the same in the figure. It is arranged so that it extends vertically and the fiber direction of the intermediate veneer 3b extends longitudinally in the figure.

[0012] Accordingly, according to the above configuration, the plurality of the straight members 2a to 2c superposed on each other prevent mutual deformation, and at the same time, are interposed between the respective straight members 2a to 2c. The plywoods 3 and 3 prevent the straight members 2a to 2c from being deformed, and the synergistic effect of both functions effectively prevent the warp deformation of the core members 1a and 1b. Therefore, it is possible to form the frame body a which is not likely to warp due to the temperature difference and the humidity difference between the adjacent rooms, and the door body A is bent, and the door is not tightened as a result. We were able to provide a wooden door with no major defects.

FIG. 4 shows a modification of the core materials 1a and 1b in the above embodiment. In this modified example, a plurality of (three) straight members 2a to 2c having a predetermined thickness are arranged next to each other so that their fiber directions X do not intersect, and the grain Y of the straight members 2a, 2b, 2b, 2c are adjacent to each other. And the plywood 3 is interposed between the adjacent straight materials 2a, 2b, 2b, 2c so that the straight materials 2a to 2c and the plywoods 3 and 3 are bonded and integrated. Is the same as the core materials 1a and 1b described above, but the interposing means of the plywood 3 is different.

That is, in the core material 1c, the straight members 2a to 2c and the plywoods 3 and 3 are bonded and integrated by directly interposing the plywood 3 between the joint surfaces of the adjacent straight members 2a, 2b, 2b and 2c. Therefore, there is an advantage that the core materials 1a and 1b described above can be easily manufactured. Needless to say, the same deformation suppressing effect as described above can be obtained also when the frame a formed by using the core material 1c is used.

[0015]

[Effect of device]

 As described above, the present invention uses the laminated core material in which a plurality of straight materials are stacked, so that the respective straight materials prevent mutual deformation and at the same time, between the respective straight materials. The intervening plywood can effectively prevent warp deformation of the core material due to the synergistic effect of both functions of preventing deformation of each straight material.

Therefore, since the door body is configured by using the frame body made of such a core material, there is no risk of warpage due to temperature difference or humidity difference between the adjacent rooms, and the door body is less likely to warp than conventional products. It can be opened and closed extremely reliably and smoothly.

Further, compared with a means of interposing a metal plate in place of the plywood in order to obtain the above-described deformation suppressing effect, it is possible to reduce the deformation suppressing effect due to a defective joint between the metal plate and the direct material. It is possible to improve the workability at the time of manufacturing the door body and at the time of installation at the site by preventing the weight of the frame a from being increased, and it is possible to open and close smoothly during use. There are many effects such as providing a door.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of a wooden door according to the present invention.

FIG. 2 is a perspective view showing a corner portion (joint portion) of a frame body a in FIG.

FIG. 3 is an enlarged cross-sectional view taken along the line (3)-(3) of FIG.

FIG. 4 is a perspective view showing another example of the core material.

[Explanation of symbols]

A: Door body a: Frame body b: Outer fabric 1a, 1
b: Core materials 2a to 2c: Direct material 3: Plywood 4: Adhesive material X:
Fiber direction Y: grain

Claims (1)

[Scope of utility model registration request] 1. A frame body disposed at a peripheral portion of a door body is laminated with a plurality of straight members having a predetermined thickness so that the fiber directions thereof do not intersect, and between the adjacent straight members. A wooden door characterized by being formed of a laminated core material in which a plywood is interposed and the direct material and the plywood are bonded and integrated.