JP3326100B2 - Inner door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner door device having a large number of shelf supports in the vertical direction and capable of closing the inside of a box which can be opened and closed by an outer door. It is effectively used for boxes where the internal environment is maintained.

[0002]

2. Description of the Related Art In a case such as a thermostat, for example, a hinge is usually mounted directly on the inner wall of the case, and an inner door is mounted on the hinge. However, in such an inner door structure, a hole must be made in the wall of the case to attach the hinge to the case, and the construction work is troublesome. When the inner door was changed or the inner door became unnecessary, new drilling and sealing work of the original hole were required, and it was not easy to change the arrangement of the inner door.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the prior art, and to provide an inner door device which can be easily constructed, and which can be easily attached / detached, changed in arrangement and size. I do.

[0004]

According to the present invention, in order to solve the above-mentioned problems, the invention according to claim 1 is capable of closing the inside of a box which is provided with a large number of shelf receiving portions in a vertical direction and is opened and closed by an outer door. In the inner door device, the shelf receiving portion is a support having both side surfaces.
A contact surface that is formed and contacts the two side surfaces.
And an intermediate member including a supported portion that is separably supported by the shelf receiving portion and an extended portion that is extended from the supported portion,
A rotating member and a second side member rotatably engaged with the one side member and the one side member coupled to the extension portion, and an inner door which is coupled to the other side member, said On both sides
And a restricting means configured by the contact surface and capable of restricting the movement of the intermediate member.

According to a second aspect of the present invention, in addition to the above, an opposed shelf receiving portion is provided inside the interior so as to face the shelf receiving portion, and the first member and the second member which can be separated from each other are provided. A door catch mechanism which can maintain the inner door in a closed state,
An intermediate member for a catch mechanism having a supported portion detachably supported by the opposed shelf receiving portion and an extended portion extending from the supported portion, wherein the first member and the The two members are attached to a free end side of the inner door and the extending portion.

[0006]

[0007]

FIG. 1 shows an example of a box such as a thermostat to which the present invention can be applied. FIGS. 2 and 3 show a vertical sheet of an inner door device applied to this box. 2 shows the separated state and the assembled state of the minute. The inner door device is a device which has a plurality of receiving holes 1 as shelf receiving portions in the vertical direction and is capable of closing the inside 101 of the box 100 which is opened and closed by the outer door 2, and includes a mounting plate 3 as an intermediate member, and a rotating member. Hinge 4, an inner door 5, a screw 6 as a regulating means, and the like. Receiving hole 1
It is formed on a convex surface of a convex support 11 provided on the entrance side and the rear side of the wall surface on both sides of the inside 101. As shown in FIGS. 3B and 3C, a shelf receiver 103 is mounted in the receiving hole 1 through a claw 103a formed by punching a part of the shelf receiver 103 and bending. An appropriately shaped shelf 104 is placed thereon.

The mounting plate 3 includes a mounting portion 31 having two pawls 31a similar to the pawls 103a as supported portions separably supported in the receiving hole 1, and an extended portion 32 extended therefrom.
And It is sufficient if the claws 31a are provided at two places, but more claws may be provided. The receiving holes 1 are usually formed at an equal pitch, and the pawls 31a are formed at intervals of three pitches with two receiving holes 1 interposed therebetween in order to be supported by the receiving holes 1.

If the claws 31a are normally provided at such an interval, the stability when the inner door 5 is attached can be maintained.
The pitch may be smaller or larger. With such a structure, the mounting plate 3 is supported by the columns 11 by fitting the claws 31 a into the receiving holes 1. As will be described later, in order to sufficiently stabilize the support state, the mounting portion 31 is further provided with two screw holes 31b for setting the screw 6 at two upper and lower positions. In addition,
In this embodiment, the shelf receiving portion is a hole like the receiving hole 1. However, for example, the shelf receiving portion has another shape such as a nail having a nail like the nail 31a of the mounting plate 3 of the present embodiment. There may be. In this case, for example, the claw 31a has a hole-like shape like the receiving hole 1.

The extending portion 32 is bent at the bending surface 32a from the flat mounting portion 31 and extends in the direction of the opening of the box 100, and has an end portion for attaching the hinge 4 thereto. A screw hole 32b is drilled. The bent surface 32a comes into contact with the side surface 11a of the support when the mounting portion 31 is mounted on the support 11. Further, the end is a folded end 32c, which is
The extension portion 32 is further stabilized by contacting the inner wall surface to which is attached. In the example shown in the drawing, the extending portion 32 is long. However, since the extending portion 32 is for connecting hinge blades and the like, the receiving hole 1 and the support 11 are formed in the opening of the box 100. If it is nearby, it will be very short. Further, in this example, the extending portion 32 is formed by bending the mounting portion 31 by the bending surface 32a. However, when sufficient strength is provided in a case where there is a certain thickness, etc., the mounting portion including the extending portion 32 is attached. The plate 3 may be formed as a flat plate.

The hinge 4 is composed of a blade 41 as one member connected to the extending portion 32 and a blade 43 as another member rotatably engaged with a shaft 42 via a shaft 42. 43 can attach the inner door 5 through the screw hole 51 drilled in the inner door 5. Reference numeral 44 denotes a hinge mounting screw. When the mounting plate 3 and the inner door 5 are mounted by hinges in this manner, a plurality of inner doors having different dimensions can be combined with one mounting plate.

FIG. 3 (a) shows a state in which the mounting plate 3 is mounted on the column 11, the screws 6 are stopped, the mounting plate 3 and the inner door 5 are connected by the hinge 4, and the inner door 5 is usable. ing. Note that the rotating member only needs to have a function of rotating between the mounting plate 3 and the inner door 5, so that the rotating member is not removable like a hinge, and even if the two are inseparably integrated. Good. Instead of such a normal hinge, another suitable rotating mechanism, such as a method in which one side is a bearing and a pin on the other side is fitted therein, can be used.

FIG. 4 illustrates an example of the structure and operation of the regulating means for regulating the movement of the mounting plate 3 in the inner door device of FIGS. 1 to 3 to prevent rattling when the inner door 5 is operated or the like. FIG. As described above, since the inner door 5 is cantilevered at the two receiving holes 1 of the column 11 via the mounting plate 3, the fitting between the claw 31a and the receiving hole 1 alone results in the space therebetween. Because of the possibility of the gap, the inner door 5 may be tilted due to the weight of the inner door 5 or the pushing force of the door during operation, and the posture thereof may be deteriorated. Therefore, FIG. 2 and FIG.
As shown in the detailed position in FIG.
When the six screws 6 are screwed in, the screw holes 31b are located at positions where they come into contact with the corners of the receiving hole 1 respectively.
(Fig. 2).

Accordingly, the tip portions 6a of the upper and lower screws 6 are formed.
Contact the left side surface 1a and the right side surface 1b of the receiving hole 1. In this case, the tip portion 6a may be formed into a conical surface as shown in FIG. In order to reliably prevent the mounting plate 3 from coming out upward, it is desirable to form a screw hole so that the upper screw 6 also contacts the upper surface 1c of the receiving hole 1. By doing so, the screw 6 is inserted into the receiving hole 1
Can receive a reaction force as shown by the arrow.

When the claw 31a is pushed into the receiving hole 1 and the screw 6 is screwed in, the weight W of the inner door 5 and the mounting plate 3 is reduced by the two pawls 31a as shown in FIG. 1
Are supported by the respective lower surfaces 1d with a force of w = W / 2, and the left rotation moment WL generated in the inner door device by these couples is a receiving hole for the screw 6 generated in opposition thereto. It is balanced by the moment FD due to the lateral pressure F from 1. Actually, when the claws 31a are fitted into the receiving holes 1, the frictional force generated between them also acts considerably. As a result, rattling of the inner door 5 is prevented, and the correct posture is maintained. As a result, such a problem that the inner door does not close due to overlap with other inner doors is prevented.

When the inner door 5 is opened and closed, there is a possibility that a force P or P 'which pushes or pulls the inner door 5 may be applied. At this time, w, F and the like increase by that amount. 5 can be restricted. In addition, since the weight W of the inner door 5 is not so large, and P and P 'are not originally applied forces, and the moment due to the frictional force acts as described above, the distance D may not be so large. . On the other hand, since the hinge 4 is used and the inner door 5 is relatively light,
Since the torque at the time of opening and closing the inner door 5 is small, the resulting force is received by the claws 31a being fitted into the receiving holes 1.

FIG. 1D shows a state in which the claws 31a are fitted into the receiving holes 1. In this figure, the left and right sides 1 of the receiving hole
a, 1b and the left and right side surfaces 31a-1, 2 between the nails.
Is shown as there is. However, when the processing accuracy of the receiving hole and the nail is good, the interval δ can be set to +0 or a sufficiently small value. In this case, the force G shown in FIG. 3C and the moment GH due to the force G are generated without rattling therebetween, and the moment due to the weight of the inner door 5 can be supported. In such a case, the screw 6 as the regulating member can be omitted. In this case, since the upper and lower claws 31a can receive the supporting force from both the left and right directions to form a resistance moment in both directions, it is possible to prevent rattling even with a force that shakes the inner door 5. .

As shown in FIGS. 2 and 3, if the receiving hole 1 is formed on the convex surface of the column 11, the side surface 11a of the column 11 and the bent surface 32a of the extended portion 32 are formed in a dimensional relationship. Alternatively, the lower one of the two screws 6 may be removed. That is, the lower part of the bent surface 32a receives a lateral pressure from the side surface 11a of the column as shown by F in FIG. 4C, and a moment such as its own weight can be received by this and the upper screw 6.

As described above, in the above examples, the screw 6, the left and right side portions 1a and 1b of the receiving hole 1, and the left and right side surfaces 31a-
1, 2, the side surface 11a of the support, the bent surface 32a of the extension portion
And the like can selectively configure the restricting means as needed.

According to the inner door device as described above, the inner door 1 and its mounting plate 3 can be connected to each other by the hinge 4 to form a unit. Then, the unit can be set at a desired height position by using an arbitrary receiving hole 1 formed in the column 11. Further, the position can be freely changed. In this case, it is not necessary to make a hole in the wall surface of the housing for mounting the inner door, so that the construction is facilitated. Further, since the work of attaching the hinge can be performed in an arbitrary large place such as a factory, the work becomes very easy as compared with the conventional work in a narrow box.

Further, by preparing various inner doors of different sizes for the mounting plate, the size and the number of inner doors can be adjusted according to the interval between the shelves that need to be changed from time to time depending on the use condition. Can be freely combined, which is extremely convenient for use. Further, when the inner door is unnecessary, it can be easily removed and stored. At this time, even if the inner door is removed, no hole is formed in the wall of the casing, so that the sealing work is not required, and the optional requirements of the inner door can be satisfied.

FIG. 5 shows another example of the inner door device. In this example, when the support 11 has left and right side surfaces 11a and 11b, and the receiving hole 1 is formed in such a rectangular support, the mounting plate 3 is in contact with the contact surfaces. In addition to the bent surface 32a, a stop plate 33 formed by bending the back end of the mounting portion 31 is provided, and these surfaces constitute the restricting means.

In this manner, the bent surface 32a, the mounting portion 31, and the stopper plate 33 are connected to both sides 11a, 1
By contacting the inner door device 1b and the convex surface to cover them, the rattling of the inner door device can be more completely suppressed. In this example, the screw 6 of the previous example can be omitted.
In that case, attachment / detachment of the inner door device is further simplified. However, a screw 6 may be provided so that the inner door 5 can be reliably prevented from coming out upward.

FIG. 6 shows still another example of the inner door device. In the device of the present embodiment, the shape of the receiving hole 1 and the corresponding supported portion are different from those of the device of FIG. That is, the support 1
1 has a notch 1e extending up and down in the vertical direction, and corresponds to the claw 103a of the shelf receiver 103 shown in FIG. Is provided with a shelf receiving and locking portion 103b which is formed by bending over the entire length of the mounting plate, and the supported portion uses this structure to mount the mounting portion 31a of the mounting plate 3 and the receiving hole 1 formed in the mounting portion 31a. In the same manner as in the first embodiment, a groove 34 having a notch 34a extending to a corner portion, a screw 8 and a plate nut 9 are provided. Therefore, in this example, the mounting plate 3 and thus the inner door 5 can be separated from the support 11 by the fitting and disengagement of the screw 8.

The groove 34 is cut in such a width that the screw portion of the screw 8 can just pass. In the case where the mounting plate 3 has the bent surface 32a and the stopper plate 33 as in FIG. 5 as in this example, the groove 34 may be provided at one place, but the movement of the mounting plate 3 is more reliably prevented by also serving as the regulating means. For this purpose, two points are usually provided at positions separated by one or several pitches. The other grooves shown at the same pitch and adjacent to each other are for adjustment.

Assuming that the pitch of the receiving hole 1 is P ₀ , the vertical width thereof is B, and the vertical width of the groove is b, the interval Y when two grooves are provided is Y = nP−B + b −−−− or , Y = nP + Bb−b −−−−−. Here, n is the number of pitches at which an interval is provided up and down. FIGS. 6C and 6D show the case. With such an interval, the screw 8 is in a state where the upper and lower screws sandwich or expand the edges of the receiving holes 1 at different levels, and can receive a vertical load applied to the mounting plate 3. it can.

In this structure, the plate nut 9 as shown in (f) is inserted and attached from the notches 1e and 34a at the corners of the support 11 and the mounting plate 3. (D)
When the plate nut 9 is put on the column 11 in a cantilever manner as shown in FIG.
The idling is prevented and the screw is securely tightened. However, if the plate nut 9 is lengthened so that the end thereof comes into contact with the left side surface 11a of the column 11 during rotation, the screw can be tightened without considering the friction coefficient between related members when screwing. it can. In this case, it is desirable that both sides of the plate nut 9 in the width direction be supported by the pillar surfaces as indicated by the two-dot chain line in FIG.

In the inner door device having this structure, the screws 8 and the plate nuts 9 which are the supported portions can also serve as a part or all of the regulating means. That is, these are vertically aligned as shown in the example of FIG.
If it is provided at a location, the upward movement of the inner door can be restricted while supporting the weight of the inner door. In addition, when the screw 8 has a sufficient tightening force, the rotation of the inner door can be restricted by this. In that case, it is not always necessary to adopt a structure in which the mounting plate 3 covers the support 11.

FIG. 7 shows still another example of the structure of the inner door device.
2A, the mounting plate 3 formed integrally with one inner door 5 as shown in FIG. 2 is replaced with an upper mounting plate 3-1 and a lower mounting plate 3.
-2, and are connected and integrated with each other by a groove-shaped connecting member 35 having a strong strength so as to have integral strength. In the present example, the extending portion 32 and the connecting member 3
The hinge blades 5 and the hinge blades 41 are integrally fastened and connected via respective screw holes. The inner door 5 is attached to the blade 43 as in the other examples. According to this structure, the shelf receiver 103 can be mounted between the upper and lower mounting plates 3-1, 2.

(B) to (f) show other examples of the regulating means. In (b) and (c), the claw 31a is shaped as shown in the figure, and a contact force is generated between the claw and the support 11 by the spring force at the time of mounting. As a result, the movement of the mounting plate 3 with respect to the column 11 and thus the inner door 5 can be restricted by this force and the frictional force generated thereby. In this example, the screw 6 can be omitted, and the inner door 5
This eliminates the need for an operation for fixing the inner door, and makes it easier to attach and detach the inner door.

In (d) to (f), the screw hole 31b for the screw 6 is opened at a position below the claw 31a instead of the position shown in FIG. In this case, as shown in (f), when the screw 6 is tightened, the screw 6 presses the plate of the convex portion of the column 11 to press the claw 31a into pressure. As a result, the backlash of the inner door 5 can be regulated by the press-contact force therebetween and the frictional force associated therewith.

FIG. 8 shows an example in which the inner door device of the previous example is provided, and in addition to this, a door catch mechanism 7 and a mounting member thereof are provided. The door catch mechanism includes a receiving side 71 provided with magnets and the like as first and second members and a contacting side 72 made of a magnetic material or the like. Door catch mechanism 7
Although not shown in FIG. 1, the receiving member 1 shown in FIG.
Receiving hole 1 ′ and opposing column 11 ′ as opposing shelf receiving portions provided on the opposite wall surface so as to oppose column 11.
And a mounting plate 3 as an intermediate member for a catch mechanism which is separably supported by them. The receiving side 71 and the contact side 72 of the door catch mechanism 7 are attached to the free end side of the inner door 5 and the extending portion 32 of the mounting plate 3, respectively. According to such a structure, the completely closed state of the inner door is easily ensured, and the internal environmental sustainability can be improved.

[0033]

As described above, according to the present invention, according to the first aspect of the present invention, the intermediate member is provided with the supported portion which is separably supported by the shelf receiving portions provided in the vertical direction. The position of the inner door which can be connected to the intermediate member can be freely changed. Therefore, it becomes convenient in use. Since the intermediate member has an extended portion extending from the supported portion, the intermediate member is provided with a rotating member at a position avoiding the shelf receiving portion where the supported portion is supported, the shelf receiver, and the shelf placed thereon. The inner door can be rotatably supported.

Further, since the regulating means for regulating the movement of the intermediate member is provided, the position of the intermediate member is maintained and the inner door is kept in position even if the inner door is subjected to its own weight or some external force is applied to the inner door when the inner door is opened and closed. Posture can be kept in the correct state. As a result, the closed position of the inner door is improved, and there is no interference between the inner doors. In addition, as such a restricting means, columns having various structures can be adopted by using a column forming the shelf receiving portion and the normal shelf receiving portion.

According to the inner door device having the above-described operation, it is not necessary to perform a work such as drilling another screw for mounting on the wall surface of the box or the like. As a result, the facility work is facilitated, and when the use of the inner door is stopped, no extra work such as a hole sealing work is generated. In addition, by combining the intermediate member, the rotating member, and the inner door into units of various sizes in advance, the necessary size and number of inner doors can be freely adjusted in accordance with the interval of the shelf plate that is sometimes changed. In combination, an appropriate inner door can be selectively or partially mounted, which is extremely convenient for use.

Further , the shelf receiving portion is formed by a column having both side surfaces, and the intermediate member is provided with a contact surface that comes into contact with the both side surfaces to constitute the regulating means. Can be regulated. As a result, it is possible to omit special regulating means . That
In this case, the attachment / detachment of the inner door device is facilitated. However, another rule
Control means may be used in combination.

According to the second aspect of the present invention, the intermediate member for the catch mechanism is provided, and the door catch mechanism is provided on the intermediate member and on the free end side of the inner door. Can be favorably maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a box to which the inner door device of the present invention can be applied.

FIG. 2 is a perspective view showing a state where a part of the inner door device of the present invention is separated.

FIG. 3A is a perspective view showing a mounted state of a part of the inner door device, and FIGS. 3B and 3C are perspective views showing a separated state and a combined state of a shelf board and a shelf receiver.

FIG. 4A is a plan view showing a relationship between a screw and a hole;
(B) is a sectional view of a screw portion, (c) is an explanatory view of an external force applied to an inner door and a supporting state thereof, and (d) is an explanatory view showing a relationship between a receiving hole and a claw.

5A and 5B show another example of the inner door device of the present invention, in which FIG. 5A is a perspective view of a mounting plate, and FIG. 5B is a perspective view showing a state where the inner door is connected and the mounting plate is mounted in a receiving hole. is there.

FIG. 6 is a perspective view and a sectional view showing still another example of a part of the inner door device of the present invention, wherein (a) is a support, (b) is a mounting plate,
(C) shows the assembled state, (d) shows the sectional state, (e) shows the shelf receiver, and (f) shows the screws and plate nuts.

7A and 7B show another example of the structure of the inner door device, wherein FIG. 7A is a perspective view in an exploded state, FIGS.
(D) is a plan view of a mounting portion of the mounting plate, and (e) and (f) are cross-sectional views of a claw and a screw portion thereof.

FIG. 8 is a perspective view showing a state where a catch mechanism is provided on the inner door.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Receiving hole (shelf receiving part) 1 'Receiving hole (opposite shelf receiving part) 1a, 1b Left and right side surfaces of a receiving hole (restriction means) 2 Outer door 3 Mounting plate (intermediate member, intermediate member for catch mechanism) 4 Hinge (rotation) 5) Inner door 6 Screw (restriction means) 7 Door catch mechanism 8 Screw (supported part) 9 Plate nut (supported part) 11 Support 11a, 11b Left and right side surfaces (both side surfaces, control means) 31 Mounting part ( Supported part) 31a Claw (supported part) 31a-1, 2 Left and right side surfaces of claw (restriction means) 32 Extended part 32a Bend surface (contact surface, restriction means) 33 Stopper plate (contact surface, restriction means) 34 Groove (Contacted portion) 41 Blade (one side member) 43 Blade (other side member) 71 Receiving side (first member) 72 Contact side (second member) 100 Box 101 inside

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-23978 (JP, A) Japanese Utility Model Application Sho 54-146467 (JP, U) Japanese Utility Model Application Utility Model Sho 57-157894 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) F25D 23/02 303

Claims (2)

(57) [Claims] 1. An inner door device having a plurality of shelf receivers in a vertical direction and capable of closing the inside of a box opened and closed by an outer door, wherein the shelf receivers are formed by pillars having both side surfaces.
An intermediate member including a contact surface that contacts the both side surfaces, a supported portion that is separably supported by the shelf receiving portion, and an extended portion that extends from the supported portion; A rotating member including a one-side member coupled to the portion and the other-side member rotatably engaged between the one-side member; an inner door coupled to the other-side member ; Composed with the contact surface
Inner door apparatus characterized by having a regulating means for regulating movement of the intermediate member have been. 2. An interior shelf receiving portion is provided inside the interior so as to face the shelf receiving portion, and is made up of a first member and a second member which can be separated from each other and keeps the inner door in a closed state. A door catch mechanism, a catch mechanism intermediate member having a supported portion separably supported by the opposed shelf receiving portion and an extended portion extending from the supported portion, The inner door device according to claim 1, wherein the first member and the second member are attached to a free end side of the inner door and the extending portion.