JPS6154913B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a muntin for shoji screens.
Conventionally, as shown in Fig. 7, with regard to shoji kumiko, a groove with an inward lip is formed on one side surface of a metal profile, and a joint joint made of rubber or the like is attached to this groove. A shoji muntin in which joints are attached is generally known.

However, such a shoji muntin has the following problems.

(1) The above-mentioned joints are made of a material such as rubber, but the rubber material becomes curly and twists, creating waves, so it is difficult to fit the joints into the grooves of the muntin body. It was difficult and required a lot of effort and time to make the joints.

(2) In order to firmly attach the joint to the muntin body, if the gap between the concave groove of the muntin body and the joint is small, it will be very difficult to thread the joint, and the rubber joint will be installed in a stretched state, so it will be difficult to pass the joint at a later date. This caused rubber joint shrinkage. On the other hand, if the gap between the concave groove of the muntin body and the joint is widened and the rubber joint is installed, the installation work is easier, but it can cause the joint to wobble and even cause the joint to fall out. .

(3) Unlike wooden joints, conventional rubber joints do not absorb moisture easily, so the spraying effect after papering is hardly expected.

(4) When formed as a glass shoji, the rubber joints have aesthetic disadvantages such as their appearance being poorer than the wooden joints when viewed from the back.

Thus, the present invention has been devised to solve the above-mentioned problems and drawbacks all at once, and the present invention will be explained below based on embodiments shown in the drawings.

In FIG. 2 of the drawings, reference numeral 1 indicates the muntin body.
The muntin main body 1 is provided with a groove 2 on one side surface thereof, which widens from the bottom toward the opening direction.

In addition, on the inner walls of both side pieces 3, 3 of the groove 2,
At each position on the bottom side of the groove and the opening side, the one on the opening side is higher than the one on the bottom side of the groove and protrudes parallel to each other, and each protruding end is used to widen the groove 2. A rail-shaped protrusion 4 is provided that can be placed in the same horizontal plane in any state.

The muntin main body 1 having such a shape is manufactured by extrusion molding.

In the drawings, reference numeral 5 indicates a wooden joint member.
The joint member 5 has a substantially rectangular cross section and is inserted into the groove 2 of the muntin main body 1. Then, as shown in FIG. 3, the side pieces 3 of the groove 2 are crimped in the groove inward direction using a crimping member such as a crimping roller 9, and each protrusion 4 of the side piece 3 is connected to a joint member. 5, the joint member 5 is fitted and fixed in the groove 2.

FIG. 6 shows an embodiment of the apparatus for manufacturing shoji muntins according to the present invention.

A muntin main body 1 having a groove 2 expanding in the opening direction
With the wooden joint 5 inserted into the groove 2,
This muntin main body 1 is conveyed to a crimping device 6.

By the way, the crimping device 6 includes a pair of entrance guide rollers 7, 7, a pair of exit guide rollers 8, 8, and a crimping roller 9, 9 located in between. The muntin main body 1 with the joint 5 inserted into the groove 2 is then carried between the entrance guide rollers 7, 7, and the side pieces 3, 3 are crimped by the crimping rollers 9, 9, and the exit guide roller 8, By sending out from between 8
A shoji muntin according to the present invention can be manufactured.

4 and 5 show a modification of the muntin main body 1 in which the groove 2 is widened in only one direction toward the opening side. In such a case, the expanded side piece 3
The only part will be crimped with a crimping roller.

Since the present invention is as described above, it has the following effects.

Since the joint member is fitted from the expansion direction of the expansion groove of the muntin body, it is very easy to fit the joint member, and there is no need to push or pull the joint member in the longitudinal direction. Therefore, the joints fit together accurately and will not shrink or come loose even after long use.

In order to caulk and fix the joint member fitted into the groove of the muntin main body, the locking protrusion provided on the side piece of the groove is placed at the bottom side of the groove and at the opening side position of the side piece. The protruding ends of the concave grooves are made higher than those of the bottom side of the groove and are protruded parallel to each other, and the protruding ends are formed so as to lie within the same horizontal plane when the groove is expanded.

Therefore, the locking force is increased by the plurality of protrusions, and crimping and fixing can be performed reliably.

In addition, the high protrusion on the side of the opening means that
The amount of protrusion of the protrusion on the side of the groove bottom can be reduced without weakening the locking force, and even if at least two protrusions are provided, the width of expansion of both sides of the groove when the joint member is not fully fitted can be reduced. be able to. This allows the work of crimping the both sides of the pieces inward into the groove to be reliably performed with a small amount of deformation, and is carried out smoothly by assembly work using a crimping device consisting of rollers, etc., as shown in Figure 6. be able to.

Note that this small amount of deformation prevents any influence on the membrane of the muntin body, such as the occurrence of cracks at the bases of the side pieces, during the caulking work of both side pieces.

Furthermore, by making the protrusions on the sides of the opening higher so that the protruding ends of each protrusion are in the same horizontal plane when both sides of the groove are expanded, positioning when fitting the joint material is easy. It happens.

In order to fit and fix the joint member into the recessed groove as described in and, the joint made of wood, etc., which is the most preferable material for pasting shoji paper, can be quickly and easily inserted into the recessed groove of the muntin body, yet accurately and firmly. Can be fixed to.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a shoji door using the shoji muntin according to the present invention, Fig. 2 is a sectional view of the shoji muntin before the joints are installed, and Fig. 3 is the state with the joints installed. 4th cross-sectional view showing the shoji muntin of
5 is a sectional view showing another embodiment of the present invention,
FIG. 6 is a perspective view showing a crimping device for a shoji muntin according to the present invention, and FIG. 7 is a sectional view showing a conventional example. 1...Muntin body, 2...Concave groove, 3...Side piece, 4
... protrusion, 5 ... joint member, 6 ... caulking device,
7... Entrance guide roller, 8... Outlet guide roller, 9... Crimping roller, 10... Muntin frame, 11
...roller, 12...gouge part, A...shoji paper.

Claims (1)

[Scope of Claims] 1. A muntin main body provided with a groove expanding from the bottom toward the opening on one side surface, a groove bottom side of the inner wall of the groove of the muntin main body, and At each position of the opening side part, the one on the opening side is higher than the one on the bottom side of the groove and protrudes parallel to each other, and each protruding end is in the same horizontal plane when the groove is expanded. It consists of a rail-shaped protrusion that can be tightened, and a joint member that fits and locks in the groove of the muntin main body, and the side pieces of the groove of the muntin main body are crimped in the groove direction. A shoji muntin, characterized in that each protrusion of the inner wall locks the joint member by the crimping. 2. A groove that widens from the bottom toward the opening on one side surface, and at each position on the groove bottom side and the opening side of the inner wall of the groove, the groove on the opening side is placed on the groove bottom side. They are set higher than other objects and protrude parallel to each other.
A muntin body is extruded and has a rail-shaped protrusion that allows each projecting end to lie within the same horizontal plane when the groove is expanded, and a joint member is inserted into the groove of the muntin body. Also, by tightening the side pieces of the groove inward, each protrusion provided on the inner wall of the groove is engaged with the joint member, and the joint member is fitted and fixed into the groove. A method for manufacturing shoji kumiko.