JP2020193519A - Fitting structure for round case - Google Patents

Abstract

To prevent a case plate from falling by preventing a locked state on an upper side of the case plate from being released, even though a configuration is simple.SOLUTION: A fitting structure for a round case has an upper case locking material 5 to which an upper end portion of the case is fitted and a lower case locking material 6 to which a lower end portion of the case is fitted. The upper case locking material 5 comprises a side to be locked (upper side vertical side 53) on which a locking side (upper side bent side 73) of the upper end portion of the case is to be locked. In a state in which the locking side (upper side bent side 73) is locked with the side to be locked (upper side vertical side 53), a direction in which the upper end portion of the case moves downward is a direction for releasing the locked state. The upper case locking material comprises locked state release inhibition means (screw S1, nut 711, lower side 51) for inhibiting the upper end portion of the case from moving downward, in the direction in which the locked state is to be released.SELECTED DRAWING: Figure 5

Description

The present invention relates to a mounting structure of a round case, and more particularly, to a mounting structure of a round case that prevents the round case from falling by preventing the upper end portion of the round case from coming off.

A so-called round case is known as a shutter case for a heavy-duty shutter or the like. The round case is made of a case plate formed by bending a metal plate material in a cross-sectional view arc shape, and the upper end portion and the lower end portion of the curved case plate are placed on the upper case stopper provided on the skeleton, near the forage, etc. It is attached by locking each of the provided lower case stoppers. When locking the upper and lower ends of the round case, the case plate is elastically deformed in the direction of bringing the upper end and the lower end closer to each other and inserted into the upper case stopper and the lower case stopper, respectively, and the elastically deformed case plate is formed. By expanding by elastic force, it is locked to the upper case stopper and the lower case stopper, respectively, and the locked state is maintained by the elastic force acting in the expansion direction.

However, if vibrations that exceed the elastic force of the round case act due to the effects of an earthquake, etc., or for some reason (such as unintentional plastic deformation to improve workability when mounting the round case), the round case When the elastic force is weak (in this case, the locked state of the upper end is easily released), the locked state of either the upper end portion or the lower end portion of the round case may be released. If the round case is released from the locked state, the round case may fall without being held.

In Patent Document 1, the lower case stopper is a groove-shaped member with a lip, and when the upper end portion of the round case comes out of the upper case stopper and the round case is about to fall, the lower end portion of the round case is fixed to the lower case. The round case is prevented from falling by receiving it at the lip of the material.

However, in the locking structure of the lower end of the round case disclosed in Patent Document 1, the lower end portion of the round case and the lower case stopper are not completely fixed, so that the behavior or behavior (deformation or deformation) of the round case is not completely fixed. Depending on the rotation, etc.), the lower end of the round case may move in the direction of coming out of the lower case stopper, and if the lower end of the round case does not catch on the lip, the upper end of the round case may move. When the locked state of the portion is released and the round case rotates by its own weight, the round case may fall without maintaining the locked state of the lower end portion of the round case. It is considered extremely unlikely that such a round case will fall, but it is desirable to be prepared in case of emergency.

Patent Document 2 discloses a shutter curtain configured to prevent the upper side of the case plate from being disengaged and to prevent the case plate from falling off. In Patent Document 2, a retaining means composed of a separate member is used, and the number of parts increases and the structure becomes complicated. In addition, as a mounting means on the upper side of the case plate, it is possible to fasten the upper case stopper and the upper end of the case plate with a screwdriver, etc., but in addition to working at a high place, the round case makes you feel comfortable. It was necessary to embark or extend the arm and push it from above with an impact driver or the like to perform the fastening work, resulting in poor workability.
JP-A-2018-35548 JP 2016-156170

An object of the present invention is to prevent the upper side of the case plate from being disengaged and prevent the case plate from falling off, although the structure is simple.

The technical means adopted by the present invention is
In a round case mounting structure in which the upper end is attached to the upper case stopper and the lower end is attached to the lower case stopper.
The upper case stopper has a locked side to which the locking side of the upper end portion of the round case is locked.
In the locked state of the locked side and the locked side, the direction in which the upper end portion of the round case moves downward is the direction in which the locked state is released.
A locking state release regulating means for restricting the upper end portion of the round case from moving downward in the direction in which the locked state is released is provided.
It is a mounting structure of a round case.
In one aspect, the locked state of the locked side of the upper end portion of the round case and the locked side of the upper case stopper is held by the elastic force that the case plate attached by elastically deforming expands. ing.
In one embodiment, the locked state release regulating means includes a screw. The screw used as the locking state release regulating means functions not as a fastening means but as a contacting means or a locking means.

In one embodiment, the upper end portion of the round case comprises a tip portion of the round case and a locking side that rises upward from the tip of the tip portion.
The upper case stopper includes a locked side and a lower side extending below the locked side.
In a state where the locking side is close to or in contact with the inside of the locked side, the tip portion of the round case and the lower side of the upper case stopper are separated and opposed to each other with a predetermined interval.
The locked state release regulating means is a means for maintaining the interval.

In one embodiment, the locked state release regulating means includes a screw, the lower end of the shaft portion of the screw is in contact with the lower side, and the upper portion of the shaft portion is the tip portion (for example, a plate member). A female screw is formed as a wall thickness) or is screwed into a female screw provided adjacent to the tip portion.

In one embodiment, the upper end portion of the round case has a tip portion of the round case, a rising edge rising upward from the tip of the tip portion, and the engagement extending from the upper end of the rising side so as to face the tip portion. It consists of a stop and
The tip of the locking side is in contact with or close to the locked side of the upper case stopper from the inside, and the lower end of the locked side is in contact with or close to the tip portion.
The locked state release regulating means is a means for regulating the downward movement of the upper end portion by contacting the locked side from below.

In one embodiment, the locking state release regulating means is a screw provided on the locked side, and the shaft portion of the screw is in contact with or close to the locking side from below, and is engaged with the screw. The stop side can be locked to the shaft portion.
In one embodiment, the tip of the shaft is in contact with or close to the rising edge.
In one embodiment, the upper case stopper comprises an upper side, a locked side extending downward from the tip of the upper side, and a vertical side extending downward from the base end of the upper side of the round case. The rising side of the upper end portion is close to the vertical side of the upper case stopper.

Since the mounting structure of the round case according to the present invention includes an upper case stopper and a locking state releasing regulating means for restricting the unlocking of the locking side of the upper end portion of the round case, the lower end of the round case is provided. Even when the portion comes off from the lower case stopper, the upper case stopper and the upper end portion of the round case are maintained in a locked state, so that the round case can be prevented from falling.
In the present embodiment, although the locking state release regulating means is provided with a screw, the screw does not directly fasten the upper case stopper and the upper end portion of the round case, but is screwed on a preformed female screw. Since it is only screwed in, workability is improved compared to fastening using drill screws, even though it uses screws.

It is a vertical cross-sectional view of the part above the opening which shows the shutter case. It is a front view of a shutter case. The mounting structure of the round case according to the first embodiment is shown, the upper locking portion of the case plate is locked to the upper case stopper, and the lower locking portion of the case plate is locked to the lower case stopper. doing. It is a partially omitted top view of FIG. It is a figure which shows the process for obtaining the locking structure of the upper locking portion of the case plate with respect to the upper case stopper material. FIG. 3 is a diagram showing the behavior of the case plate when the lower locking portion of the case plate is disengaged from the lower case stopper material in the state of FIG. (A) is an enlarged view of the locking structure of the upper locking portion of the case plate with respect to the upper case stopper material according to FIG. 3, and (B) is the engagement of the upper locking portion of the case plate with respect to the upper case stopper material according to FIG. It is an enlarged view of the stop structure. The mounting structure of the round case according to the second embodiment is shown, the upper locking portion of the case plate is locked to the upper case stopper, and the lower locking portion of the case plate is locked to the lower case stopper. doing. It is a partially omitted front view of FIG. It is a figure which shows the process for obtaining the locking structure of the upper locking portion of the case plate with respect to the upper case stopper material. FIG. 8 is a diagram showing the behavior of the case plate when the lower locking portion of the case plate is disengaged from the lower case stopper material in the state of FIG. (A) is an enlarged view of the locking structure of the upper locking portion of the case plate with respect to the upper case stopper material according to FIG. 8, and (B) is the engagement of the upper locking portion of the case plate with respect to the upper case stopper material according to FIG. It is an enlarged view of the stop structure.

The first embodiment will be described with reference to FIGS. 1 to 7. FIG. 1 is a vertical sectional view of a portion above a building opening (including a shutter case according to the present embodiment), and FIG. 2 is a front view of the same. The wall body W is located above the ceiling C, and the left and right brackets 1 are provided so as to face each other in a carry-out shape at intervals in the opening width direction. A take-up shaft 2 is supported between the left and right brackets 1, and a shutter curtain 3 guided by a guide rail G into the shutter case above the opening of the building is wound around the take-up shaft 2.

The bracket 1 is formed of a square plate having an upper edge 10, a lower edge 11, a base end edge 12, and a tip end edge 13, and a base end piece 120 is formed on the base end edge 12, and the base end edge 12 is formed. By bringing the end piece 120 into contact with the wall body W and fixing it with the bolt B, the plate body extends vertically from the wall body W. In the present specification, when an element includes a portion close to the wall body W and a portion far from the wall body W, the side closer to the wall body W is the first side and the side far from the wall body W is the second side. That is.

A lower piece 110 is bent at the lower edge 11 of the bracket 1, and between the left and right brackets 1 and between the central portions of the lower piece 110 in the length direction, both end portions of the mounting member 4 in the length direction are formed. Each is fixed. The mounting member 4 is a square pipe having a square cross-sectional view from the upper surface 40, the lower surface 41, the first vertical surface 42 on the first side, and the second vertical surface 43 on the second side (see FIG. 3).

As shown in FIG. 1, the mounting member 4 is provided with a long support member 14 extending in the opening width direction, and the forages 15 and 16 are separated from each other in the vicinity of the ceiling C above the opening of the building. The shutter curtain 3 passes between them. The support member 14 is provided with a smoother 17 and an emergency switch 18 located above the forage 15.

Both ends of the upper case stopper 5 in the length direction are fixed between the corner portions (that is, the upper portion on the first side of the bracket 1) formed by the upper edge 10 and the base end edge 12 of the left and right bracket 1. Has been done. The lower case stopper 6 is fixed to the second vertical surface 43, which is the second side portion of the mounting member 4, over the length direction.

The shutter case consists of a plurality of curved case plates (so-called round cases) 7 connected in series in the opening width direction, and the upper end and the lower end of each case plate 7 are attached to the upper case stopper 5 and the lower case stopper 6, respectively. By attaching, a storage space for the shutter curtain 3 wound around the winding shaft 2 is formed between the inner surface of the case plate 7 and the wall body W.

The case plate 7 is elastically deformed in a direction in which the upper and lower ends are brought closer to each other, so that the upper end portion and the lower end portion are locked to the upper case stopper 5 and the lower case stopper 6, respectively, and the elastically deformed case plate expands. The locked state is maintained by the elastic force that opens (the direction in which the upper and lower ends are separated).

In the aspect shown in FIG. 2, the shutter case is formed of five case plates 7A, 7B, 7C, 7D, and 7E, but the number of case plates 7 constituting the shutter case is the opening width dimension and each case. It can vary depending on the width dimension of the plate and is not limited. In the illustrated embodiment, the case plates 7A, 7B, 7C, 7D, and 7E are attached so that their ends overlap, but the overlapping mode (which of the adjacent case plates is located on the outside or inside, etc.) The mode is not limited to the illustrated mode, and the edges of adjacent case plates may be brought into contact with each other so as not to overlap each other.

As shown in FIGS. 1 and 3, the case plate (round case) 7 is inclined upward from the arcuate portion 70 and the upper end of the arcuate portion 70 toward the first side (wall body W) in a cross-sectional view or a side view. The upper inclined portion 71 extending in a shape, the lower inclined portion 72 extending downward from the lower end of the arc-shaped portion 70 toward the first side (wall body W), and the lower inclined portion 72 extending upward toward the tip of the upper inclined portion 71. It is composed of the upper bent side 73 and. In the present embodiment, the upper locking portion is formed from the tip portion 710 of the upper inclined portion 71 and the upper bent side 73, and the lower locking portion 720 is formed from the tip portion of the lower inclined portion 72. There is. In the present embodiment, the upper inclined portion 71 and the lower inclined portion 72 are planes extending in a straight line in cross section. The case plate 7 according to the present embodiment is a case plate for a heavy shutter.

As shown in FIG. 2, the upper case stopper 5 is a long member extending in the opening width direction, and as shown in FIG. 5A, extends along the wall body W in a cross-sectional view or a side view. From the vertical side 50, the lower side 51 extending horizontally from the lower end of the vertical side 50 toward the second side, the upper side 52 extending horizontally from the upper end of the vertical side 50 toward the second side, and the tip of the upper side 52. It is formed from an upper vertical side 53 that hangs down. The protruding dimension of the lower side 51 (from the first side to the second side) has a dimension larger than the protruding dimension of the upper side 52. In the present embodiment, the protruding dimension of the lower side 51 is approximately twice the protruding dimension of the upper side 52. An opening for receiving the upper locking portion of the case plate 7 is formed between the lower end of the upper vertical side 53 and the upper surface of the lower side 51, and the upper vertical side 53 of the upper case stopper 5 is the upper side of the case plate 7. The locking portion is a locked portion to be locked.

As shown in FIG. 2, the lower case stopper 6 is a long material extending in the opening width direction, and as shown in FIG. 3, the horizontal bottom 60 and the bottom 60 are viewed in cross section or side view. The first vertical side 61 that rises vertically from the first side end, the second vertical side 62 that rises vertically from the second side end of the bottom 60, and the upper end of the first vertical side 61 toward the second side. It is composed of a short first upper horizontal side 63 extending horizontally and a short second upper horizontal side 64 extending horizontally from the upper end of the second vertical side 62 toward the first side. An opening for receiving the lower locking portion 720 of the case plate 7 is formed between the first upper horizontal side 63 and the second upper horizontal side 64, and the case plate is formed in the internal space of the lower case stopper 6 from the opening. The lower locking portion 720 of 7 is accepted. The lower case stopper 6 is attached by fixing (for example, welding) the first vertical side 61 to the second vertical surface 43 of the attachment member 4.

With reference to FIGS. 1 and 3, the locking of the lower locking portion 720 of the case plate 7 and the lower case stopper 6 will be described. The tip portion of the lower inclined portion 72 is inserted through the opening between the first upper horizontal side 63 and the second upper horizontal side 64 of the lower case stopper 6, and the portion of the lower locking portion 720 is fixed to the lower case. Contact or lock the material 6. In the illustrated embodiment, the tip 721 of the lower inclined portion 72 (lower locking portion 720) is the first side end portion of the bottom 60 of the lower case stopper 6, that is, the angle between the bottom 60 and the first vertical side 61. Although it is abutted and locked to the portion, the locking position or locking posture of the lower locking portion 720 of the case plate 7 and the lower locking portion 720 of the case plate 7 with respect to the lower case stopper 6 is not limited.

With reference to FIG. 5, locking of the upper locking portion (upper bent side 73 + tip portion 710 of the upper inclined portion 71) of the case plate 7 with respect to the upper case stopper 5 will be described. A nut 711 is fixed (for example, welded) to the lower surface of the tip portion 710 of the upper inclined portion 71 of the case plate 7 at a position close to the upper bent side 73, and is inserted into the tip portion 710 corresponding to the nut 711. A hole (not shown) is formed. In the tip portion 710 of the upper inclined portion 71 of the case plate 7, the portion where the insertion hole is formed and the nut 711 is fixed has the upper bent side 73 on the first side (back side) of the upper vertical side 53. It is a portion located on the second side with respect to the upper vertical side 53 when brought close to each other (see FIGS. 5 (B) to 5 (D)).

As shown in FIG. 5A, the height of the opening between the lower end of the upper vertical side 53 and the lower side 51 is larger than the sum of the height of the upper bent side 73 and the height of the nut 711, and is inclined upward. The tip of the tip portion 710 of the portion 71 and the upper bent side 73 can be inserted into the upper case stopper 5 through the opening between the lower end and the lower side 51 of the upper vertical side 53 of the upper case stopper 5. There is.

When the tip of the tip portion 710 of the upper inclined portion 71 and the upper bent side 73 are inserted through the opening between the lower end of the upper vertical side 53 of the upper case stopper 5 and the lower side 51 to be free, the upper side of the case plate 7 is opened. The inclined portion 71 moves upward so as to expand by the elastic force of the case plate 7, and the lower end of the upper vertical side 53 of the upper case stopper 5 abuts on the tip of the tip portion 710 to be in a locked state. In the stopped state, the upper bent side 73 and the upper vertical side 53 are close to each other (FIG. 6 (B)).

In this locked state, the screw S1 is screwed into the nut 711 from above to below through the insertion hole of the tip portion 710 of the upper inclined portion 71 (FIG. 6 (C)). The screw S1 is screwed in until the lower end of the shaft portion of the screw S1 abuts on the lower side 51 of the upper case stopper 5 (FIG. 6 (D)). In the locked state, the tip portion 710 of the upper inclined portion 71 and the lower side 51 of the upper case stopper 5 are separated from each other at a constant interval, and the interval is maintained by the screw S1. As shown in FIG. 4, in the present embodiment, the screws S1 (insertion holes and nuts 711) are provided at both ends in the width direction of the tip portion 710 of the upper inclined portion 71 of the case plate 7.

In a state where the lower end of the shaft portion of the screw S1 is in contact with the lower side 51 of the upper case stopper 5, the shaft portion is screwed into the female screw of the nut 711 fixed to the lower surface of the tip portion 710 of the upper inclined portion 71. As a result, the movement in the axial direction is formed, the height position of the tip portion 710 of the upper inclined portion 71 is fixed, and the tip of the upper inclined portion 71 of the case plate 7 and the upper case stopper 5 are locked. Is maintained, and the tip of the upper inclined portion 71 does not come out from the upper case stopper 5.

FIG. 6 shows the behavior of the case plate 7 when the locked state on the lower side of the case plate 7 is released. At this time, due to the weight of the case plate 7, a force in the direction of coming out of the upper case stopper 5 acts on the upper locking portion at the tip of the upper inclined portion 71, but the shaft portion of the screw S1 (fixed to the tip portion 710). When the lower end of the nut 711 (screwed into the nut 711) abuts on the lower side 51 of the upper case stopper 5, the height position of the tip portion 710 of the tip of the upper inclined portion 71 of the case plate 7 with respect to the upper case stopper 5. Is held, and the upper bent side 73 of the tip of the case plate 7 abuts and locks on the upper vertical side 53 of the upper case stopper 5, so that the tip of the upper inclined portion 71 comes from the upper case stopper 5. Never get out. Therefore, even when the lower locking portion 720 of the case plate 7 is disengaged from the lower case stopper 6, the case plate 7 can be prevented from falling off.

The second embodiment will be described with reference to FIGS. 8 to 12. The first embodiment and the second embodiment are different in the locking structure between the tip of the upper inclined portion 71 of the case plate 7 and the upper case stopper 5, and the other configurations are the first embodiment. The above-mentioned description relating to the form can be incorporated.

As shown in FIG. 8, the case plate (round case) 7 extends upward from the arcuate portion 70 and the upper end of the arcuate portion 70 toward the first side (wall body W) in a cross-sectional view or a side view. The upper inclined portion 71, the lower inclined portion 72 extending downward from the lower end of the arc-shaped portion 70 toward the first side (wall body W), and the upper side folded upward toward the tip of the upper inclined portion 71. It is composed of a bent side 73 and an upper horizontal side 74 formed by folding the upper bent side 73 further horizontally. In the present embodiment, an upper locking portion is formed from the tip portion 710 of the upper inclined portion 71, the upper bent side 73, and the upper horizontal side 74, and the lower locking portion is formed from the tip portion of the lower inclined portion 72. 720 is formed. As for the locking structure between the lower locking portion 720 of the case plate 7 and the lower case stopper 6, the above description can be incorporated.

With reference to FIG. 10, the locking of the upper locking portion of the case plate 7 with respect to the upper case stopper 5 will be described. The upper locking portion according to the second embodiment has a U-shaped side view or cross-sectional view from the tip portion 710 of the upper horizontal side 74, the upper bent side 73, and the upper inclined portion 71.

As shown in FIG. 10A, the height of the opening between the lower end of the upper vertical side 53 and the lower side 51 is larger than the height of the upper locking portion, and the tip portion 710 of the upper inclined portion 71 and the upper folding portion From the curved side 73 and the upper horizontal side 74, the upper locking portion having a U-shape in a side view or a cross-sectional view is opened from the opening between the lower end of the upper vertical side 53 of the upper case stopper 5 and the lower side 51 to the upper case stopper 5. It is possible to insert it inside. Further, the dimension between the vertical side 50 and the upper vertical side 53 of the upper case stopper 5 is slightly larger than the protruding dimension of the upper horizontal side 74 of the case plate 7.

When the upper locking portion having a U-shaped side view or cross-sectional view is inserted through the opening between the lower end of the upper vertical side 53 of the upper case stopper 5 and the lower side 51 to be free, the state shown in FIG. 10B is shown. Therefore, the upper inclined portion 71 of the case plate 7 expands due to the elastic force of the case plate 7, and the state shown in FIG. 10C is obtained. That is, the lower end of the upper vertical side 53 of the upper case stopper 5 abuts on the tip of the tip portion 710 to be in a locked state, and in this locked state, the tip of the upper horizontal side 74 is in contact with the upper vertical side 53. It is in contact (Fig. 10 (C)).

A screw hole (not shown) is formed at a predetermined position on the upper vertical side 53 of the upper case stopper 5. In this locked state, the screw S2 is screwed into the upper vertical side 53 from the horizontal direction to form a screw. The shaft portion of S2 extends horizontally inside the upper locking portion having a U-shaped side view or cross-sectional view, the shaft portion of the screw S2 is close to the lower surface of the upper horizontal side 74, and the shaft portion of the screw S2. The tip of the screw is close to the inner surface of the upper bent side 73 (FIG. 10 (D)). In the locked state, the tip portion 710 of the upper inclined portion 71 and the lower side 51 of the upper case stopper 5 are separated from each other at a constant interval, and the interval is maintained by the screw S2. As shown in FIG. 9, in the present embodiment, the screws S2 are provided at both ends of the upper locking portion at the tip of the upper inclined portion 71 of the case plate 7.

In the locked state of the upper locking portion, the tip portion 710 of the upper inclined portion 71 and the lower side 51 of the upper case stopper 5 are separated from each other at regular intervals, and in the locked state, the shaft portion of the screw S2 is on the upper side. When a force that is close to the lower surface of the horizontal side 74 and moves downward is applied to the upper inclined portion 71 of the case plate 7, the upper horizontal side 74 comes into contact with the shaft portion of the screw S2. The case plate 7 is restricted from moving downward. In this state, even if a force that moves the upper inclined portion 71 of the case plate 7 to the second side acts, the tip of the upper horizontal side 74 comes into contact with the upper vertical side 53, so that the tip of the upper inclined portion 71 The upper locking portion does not come out of the upper case stopper 5.

FIG. 11 shows the behavior of the case plate 7 when the locked state on the lower side of the case plate 7 is released. At this time, due to the weight of the case plate 7, a force in the direction of coming out of the upper case stopper 5 acts on the tip of the upper inclined portion 71, but the upper horizontal side 74 comes into contact with the shaft portion of the screw S2, so that the case plate 7 is restricted from moving downward, and the tip of the upper horizontal side 74 abuts on the upper vertical side 53, so that the upper locking portion at the tip of the upper inclined portion 71 does not come out of the upper case stopper 5. .. Therefore, even when the lower locking portion 720 of the case plate 7 is disengaged from the lower case stopper 6, the case plate 7 can be prevented from falling off.

5 Upper case stopper 51 Lower side 53 Upper vertical side (locked side)
6 Lower case stopper 7 Case plate (round case)
70 Arc-shaped part 71 Upper inclined part 710 Tip part of upper inclined part 711 Nut 72 Lower inclined part 720 Lower locking part 73 Upper bent side (locking side)
74 Upper horizontal side (locking side)
S1 screw S2 screw

Claims (5)

In a round case mounting structure in which the upper end is attached to the upper case stopper and the lower end is attached to the lower case stopper.
The upper case stopper has a locked side to which the locking side of the upper end portion of the round case is locked.
In the locked state of the locked side and the locked side, the direction in which the upper end portion of the round case moves downward is the direction in which the locked state is released.
A locking state release regulating means for restricting the upper end portion of the round case from moving downward in the direction in which the locked state is released is provided.
Round case mounting structure. The upper end portion of the round case is composed of a tip portion of the round case and the locking side rising upward from the tip of the tip portion.
The upper case stopper includes a locked side and a lower side extending below the locked side.
In a state where the locking side is close to or in contact with the inside of the locked side, the tip portion of the round case and the lower side of the upper case stopper are separated and opposed to each other with a predetermined interval.
The locked state release regulating means is a means for maintaining the interval.
The mounting structure of the round case according to claim 1. The locking state release regulating means includes a screw, the lower end of the shaft portion of the screw is in contact with the lower side, and the upper portion of the shaft portion is the tip portion or a female provided adjacent to the tip portion. The mounting structure for a round case according to claim 2, which is screwed into a screw. The upper end portion of the round case is composed of the tip portion of the round case, the rising side rising upward from the tip of the tip portion, and the locking side extending from the upper end of the rising side so as to face the tip portion. Naru,
The tip of the locking side is in contact with or close to the locked side of the upper case stopper from the inside, and the lower end of the locked side is in contact with or close to the tip portion.
The locking state release regulating means is a means for regulating the downward movement of the upper end portion by contacting the locking side from below.
The mounting structure of the round case according to claim 1. The locking state release regulating means is a screw provided on the locked side, the shaft portion of the screw is in contact with or close to the locking side from below, and the locking side is the shaft. The mounting structure for a round case according to claim 4, which can be locked to a portion.

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