JPH0225899Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a case having a rotary door, and particularly to a case equipped with a door opening/closing stiffness adjustment mechanism.

[Technical background of the invention and its problems] FIG. 6 shows a conventional example of a case having a rotary door for housing the chassis of various instruments. A hinge 4 is provided at the lower part of the open end frame 2 of the case 1, and a shaft 5 is provided at both ends of a coil spring 6 disposed inside the hinge 4. thrust out,
It has a structure that allows the shaft 5 to be pushed into it. On the other hand, a pair of mounting brackets 7 are attached to one end edge of the door 3.
is provided, and the hinge 4 is attached to the case 1 by fitting the shaft 5 of the hinge 4 into the mounting hole 8 while pushing the shaft 5 into the mounting hole 8.

With this structure, it is not possible to adjust the opening/closing force of the door 3, so if you do not support the door 3 with your hand, it will open forcefully under its own weight, causing a shock to the instrument body housed inside through the case 1. There were drawbacks such as the door 3 or the opponent's equipment being damaged by colliding with other equipment placed nearby.

[Purpose of invention]

In view of the above circumstances, an object of the present invention is to provide a case with a door opening/closing hardness adjustment mechanism that allows adjustment of the opening/closing hardness of the door.

[Summary of the idea]

The present invention consists of a hinge having a round hole provided along one edge of the door and parallel to the edge of the door, and a square groove extending in the axial direction of the hole on the inner surface of the round hole; a round bar having a flange at one end, a female threaded hole concentrically drilled in the round bar, and a protrusion that fits into the square groove of the round hole of the hinge on the side of the flange connected to the round bar; a pair of shafts, which are fitted into the round holes from both ends of the hinge, and whose projections on the brim surface fit into the square grooves and are locked from rotation;
A pair of support fittings are provided at the opening end of the case in a positional relationship to pivot the hinge of the door at both ends thereof, and have a round pivot hole, and a male thread screwed into the female threaded hole of the shaft has a length. The direction is carved except for a predetermined length of the middle part and a predetermined length of the lower part of the neck, and the middle part is formed into a non-threaded part having a diameter smaller than the root diameter of the male screw, and is inserted into the pivot hole from the outside of the pair of support fittings. A door opening/closing hardness adjustment mechanism comprising a pair of pivot screws that are screwed into the female threaded holes of the shaft through synthetic resin washers inserted between the respective support fittings and the collar of the shaft. The case was realized and the intended purpose was achieved.

[Example of idea]

Embodiments of the present invention will be described below with reference to the drawings.

A case with a door opening/closing stiffness adjustment mechanism according to an embodiment of the present invention is shown in FIGS. 1 to 5. Figures 1 and 3
As shown in the figure, a hinge 15 provided along one end edge of the door 14 has a round hole 16 extending through its entire length and parallel to the edge of the door, and a hole is formed on the inner surface of the round hole 16. A square groove 17 extending in the axial direction is provided. Further, female threaded holes 18 for set screws are provided at predetermined distances from both ends of the hinge 15. In this embodiment, the hinge 15 is made of a drawn member having a cross-sectional shape as shown in FIG. 3, and the round hole 16 is partially open around the circumference.

The shaft 21, which is inserted into the round hole 16 from both ends of the hinge 15, is inserted into one end of a round bar with an outer diameter that fits smoothly into the round hole 16, as shown in FIGS. 2 and 4 a and b. It has a circular flange 22 with a female threaded hole 23 penetrating it concentrically with the round bar, and a protrusion that fits into the square groove 17 of the hinge 15 on the surface of the flange 22 on the side connected to the round bar. 24 are provided. As shown in FIG. 2, the shaft 21 is positioned so that the protrusion 24 fits into the square groove 17 from the end of the hinge 15, and the round bar portion is inserted into the round hole 16, and the flange is 22 is inserted until it abuts the end surface of the hinge 15. In this state, an elongated hole 25 having a long diameter in the axial direction is bored in the round bar portion of the shaft 21 that faces the female screw hole 18 for the set screw of the hinge 15.

On the other hand, at the open end of the case 11, as shown in FIG. is dawning. The diameter of this pivot hole 13 is determined so that the lower part of the neck of a pivot screw 31, which will be described later, fits smoothly therein.

As shown in FIG. 5, the pivot screw 31 has a male thread 32 that is threaded into the female threaded hole 23 of the shaft 21 except for a predetermined length at the lower part of the neck and a predetermined length at the middle part. There is. The length of the lower neck 33 is case 1
The position of the non-threaded portion 34 in the middle corresponds to the set screw 36 screwed into the hinge 15, and the non-threaded portion 3
The length of 4 is the outer diameter of the set screw 36 plus an allowance. Moreover, the outer diameter of the non-threaded portion 34 is
The dimension is smaller than the root diameter of the male thread 32. As shown in FIGS. 1 and 2, the pivot screw 31 is inserted into the shaft inserted into the hinge 15 of the door 14 through the pivot hole 13 from the outside of the support fitting 12 of the case 11. It is screwed into the female threaded hole 23 of the shaft 21 via a synthetic resin washer 35 inserted between the collar 22 of the shaft 21 and the support fitting 12.

In the case with the door opening/closing hardness adjustment mechanism according to the embodiment of the present invention configured as described above, the hinge 1
The shaft 21 inserted into the round hole 16 of 5 is
Rotation with respect to the hinge 15 is prevented by the engagement between the protrusion 24 of the collar 22 and the square groove 17 of the round hole 16, so when the pivot screw 31 is screwed in, the head of the pivot screw 31 is Once the support metal fitting 12 is in contact with the support metal fitting 12, when the pivot screw 31 is subsequently screwed in, the shaft 21 moves in the direction of coming out of the round hole 16 of the hinge 15, and the space between the support metal fitting 12 and the collar 22 of the shaft 21 is removed. The synthetic resin washer 35 placed in the door 14 is compressed, increasing friction and making it harder to open and close the door 14. In other words, the degree of opening and closing of the door can be freely adjusted by adjusting the tightness of the pivot screw 31.

Then, when the desired opening/closing stiffness is obtained, door 1
4, screw the set screw 36 into the set screw female threaded hole 18 provided in the hinge 15 of No. The rotation of the pivot screw 31 relative to the female threaded hole 23 of the shaft 21 is locked by pressing the portion 34.

The hinge 15 and the pivot screw 31 of the door 14 whose opening/closing stiffness is adjusted in this way and the pivot screw 31 is locked are integrated, and the round bar of the lower neck portion 33 of the pivot screw 31 during opening/closing operation. The side is case 11
It rotates with respect to the pivot hole 13 of the support fitting 12. The resistance to the rotation, that is, the difficulty in opening and closing the door, is provided by the friction between the synthetic resin washer 35, the support fitting 12, and the collar 22 of the shaft 21.

Although not mentioned in the above-mentioned embodiment, it goes without saying that an appropriate bearing metal may be used for the pivoting round hole 13 of the support fitting 12 of the case 11.

[Effect of idea]

As detailed above, according to the present invention, a shaft having a female threaded hole penetrating through the round hole of the door hinge is inserted into the shaft, and the protrusion of the collar at the outer end of the shaft is inserted into the round hole of the door hinge. The hinge is engaged with the provided square groove to lock the shaft from rotating relative to the hinge, and the hinge of the door is positioned between a pair of support metal fittings provided at the open end of the case, and the pivot of the support metal fittings is locked. Insert the pivot screw through the round support hole, interpose the synthetic resin washer between the support fitting and the flange of the shaft of the hinge, and screw the pivot screw into the female threaded hole of the shaft and tighten to provide pivot support. By screwing in the pivot screw, the shaft of the hinge moves toward the outside of the hinge, and its collar compresses the synthetic resin washer inserted between it and the support fitting of the case. Therefore, depending on the tightness of the pivot screw, the friction between the synthetic resin and the supporting metal fittings and the shaft flange can be increased or decreased, making it possible to arbitrarily adjust the opening/closing speed of the door. Become.
The set screw screwed into the hinge holds down the non-threaded portion of the pivot screw in the middle to lock the pivot screw from rotating relative to the hinge, making it possible to maintain the set opening/closing stiffness. can.

In this way, in the case with the door opening/closing stiffness adjustment mechanism according to the present invention, the opening/closing stiffness of the door can be adjusted to an appropriate stiffness, so even in cases where the hinge is on the bottom of the case, the door can be opened with force under its own weight. Conventional cases do not open, and the impact of the door opening forcefully can have a negative impact on stored instruments, or the door can hit nearby items, damaging the door or the other person's items. Defects can be eliminated.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention,
Figure 1 is a perspective view showing the overall structure of the case with a door opening/closing stiffness adjustment mechanism with the door removed from the case, and Figure 2 is a state in which the hinge of the door is assembled to the support metal fitting at the right end of the case in Figure 1. Figure 3 is a side view of the door hinge, Figures 4a and b are external views of the shaft that fits into the round hole of the door hinge, and Figure 5 shows the pivot point. FIG. 6, an external view of the support screw, shows a conventional example of a case having a rotary door, and is a perspective view showing a state in which the door is removed from the case. 11... Case, 12... Support metal fittings, 13...
Pivot round hole, 14...Door, 15...Hinge, 16
... Round hole, 17 ... Square groove, 18 ... Female screw hole for set screw, 21 ... Shaft, 22 ... Tsuba, 23 ...
...Female threaded hole, 24...Protrusion, 25...Elongated hole, 31
... Pivot screw, 32 ... Male thread, 33 ... Lower part of neck, 34 ... Non-threaded part, 35 ... Synthetic resin washer, 36 ... Set screw.

Claims (1)

[Scope of utility model registration request] A hinge having a round hole parallel to the edge of the door provided along one edge of the door, a square groove extending in the axial direction of the hole on the inner surface of the hole, and a round rod that fits into the round hole of the hinge. It has a shape with a flange at one end, and a female screw hole is concentrically drilled in the round bar, and a protrusion that fits into the square groove of the round hole of the hinge is provided on the side of the flange connected to the round bar. A pair of shafts are inserted into the round holes from both ends of the hinge, and the protrusions on the flange surface are fitted into the square grooves to lock rotation, and the hinge of the door is pivoted at both ends at the opening end of the case. A pair of supporting metal fittings provided in a supporting positional relationship and having a round hole for pivoting, and a male thread screwed into the female threaded hole of the shaft, except for a predetermined length in the middle part in the longitudinal direction and a predetermined length in the lower part of the neck. The intermediate portion is formed into a non-threaded portion having a diameter smaller than the root diameter of the male screw, and is inserted into the pivot hole from the outside of the pair of support metal fittings, and is inserted between the support metal fitting and the collar of the shaft. A case with a door opening/closing hardness adjustment mechanism comprising a pair of pivot screws screwed into the female threaded hole of the shaft via an inserted synthetic resin washer.