JPH0530381U - Stopper device for control panel door - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a door stopper device which can be arranged in a narrow space between the upper surface of the support portion of the lower hinge pin and the lower surface of the door, and in which the pivot opening angle of the door can be easily changed. [Structure] Between the upper surface of the support portion of the lower hinge pin 6 and the lower surface of the door 3, the lower hinge pin 6 is fitted and the rear is positioned on a vertical wall surface of the housing, and an arc portion and a recess are formed in the front. The housing-side stopper 20 is provided with a door-side stopper 22 whose one end is in contact with the housing-side stopper 20 and fixed by screws on the lower surface of the door. [Effect] Since the door stopper device is composed of the housing side stopper that is fitted and fixed to the lower hinge pin of the door and the door side stopper that is screwed into the groove hole on the lower surface of the door, the device can be made small and inexpensive, and when necessary. The opening angle can be swiftly increased.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a door stopper device for restricting the rotation of a door such as a control panel at a predetermined angle.

[0002]

[Prior Art]

 As a conventional example 1, there is one disclosed in Japanese Utility Model Publication No. 1-43899. In the above-mentioned conventional example 1, a stopper having a U-shaped cross section is welded and fixed to the periphery of the opening of the housing on the hinge side, while an inner bent portion is formed on the hinge side of the door, and the inner bent portion has a predetermined depth. The above-mentioned stopper is brought into contact with the notched portion to regulate the pivotal opening angle of the door.

As a conventional example 2, there is one disclosed in Japanese Utility Model Publication No. 3-31108. In the above-mentioned conventional example 2, an adjusting bolt capable of adjusting the screwing depth is attached to the lower surface of the door in parallel with the lower surface, while a positioning metal fitting is attached to the lower end of the front side of the housing on the hinge side, and the door is opened. In the opened state, the head of the adjusting bolt is brought into contact with the positioning metal fitting to regulate the pivotal opening angle of the door. In the conventional examples 1 and 2, the opening angle of the door is usually set to about 90 ° to 110 ° in order to reduce the required maintenance area after installation.

[0004]

[Problems to be solved by the device]

 In Conventional Example 1, the door opening angle cannot be changed because it is determined by the notch depth of the housing-side stopper and the in-door bent portion. However, in the middle of production and assembly of the control panel, there are many cases where it is desirable to open the door to approximately 180 ° in order to improve productivity by performing internal assembly on the housing side and internal assembly on the door side in parallel. .. Therefore, the conventional example 1 has a problem that the assembly productivity is impaired. Further, when a dustproof packing is provided on the door side, the packing is damaged by the housing side stopper. In Conventional Example 2, the pivoting opening angle of the door can be changed by changing the screwing depth of the adjusting bolt, but there is a drawback that a wide range of screwing depth adjustment is required to change from 90 ° to 180 °. .. Further, there is a problem that a relatively large space is required on the lower surface of the door for disposing the adjusting bolt and the positioning metal fitting.

The present invention has been made to solve the above problems, and can be arranged in a narrow space between the upper surface of the lower hinge pin support portion and the lower surface of the door, and the door can be easily opened and rotated. The purpose is to obtain a door stopper device that can be changed to.

[0006]

[Means for Solving the Problems]

 The door stopper device according to the present invention is fitted into the lower hinge pin between the upper surface of the lower hinge pin support portion and the lower surface of the door, and the rear portion is positioned on the vertical wall of the housing and the arc portion is formed at the front. The housing-side stopper is provided with a recess, and the door-side stopper is fixed to the lower surface of the door by screwing one end of the door-side stopper to the housing-side stopper.

[0007]

[Action]

 In this invention, one end of the door-side stopper moves along with the door rotation along the arcuate portion of the housing-side stopper, and comes into contact with the recess of the housing-side stopper at a predetermined opening angle to restrict the rotation. In addition, the opening angle of the door can be changed by changing the screw fixing position of the door stopper.

[0008]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to FIGS. In the figure, 1 is a control panel according to the present invention, 2 is its housing, and 3 is a door. Reference numeral 4 denotes a bottom plate that constitutes the housing 2. The front surface of the bottom plate 4 is projected to the same surface as the surface of the door 3, and the front projection 4A is formed in the lower portion of the door 3. Pin holes 4B (FIG. 3) are formed in the corners of the upper surface of the front protrusion 4A. Reference numeral 5 denotes a flange member arranged on the upper surface of the bottom plate 4. Inner bent portions 3B of the three sides facing the peripheral edge of the opening of the housing 2 are formed on the upper and lower sides of the door 3 and on the side opposite to the hinge, and an inner bent portion 3C close to the door surface is formed on the hinge side. A thin first packing 31 is attached to the inwardly bent portion 3B of the three sides, and a thick second packing 32 is attached to the inwardly bent portion 3C of the hinge side, so that the gap between the housing 2 and the door 3 is dust-proof. The target is hermetically sealed.

Reference numeral 6 denotes a stepped lower hinge pin, the fixing portion 6A is welded to the inner corner of the door 3, and the pin portion 6B penetrates the pin hole 3A on the lower surface of the door and is fitted into the pin hole 4B of the bottom plate 4. ing. In the gap between the upper surface of the bottom plate front surface protruding portion 4A that serves as a support portion for the lower hinge pin 6 and the lower surface of the door 3, a housing-side stopper 20 and a spacer 21 are provided, which are fitted into the pin portion 6B. Reference numeral 7 is an upper hinge pin assembly screwed to the top plate of the housing 2 and has the same structure as that of the first embodiment. As shown in FIG. 5, the housing-side stopper 20 is formed with a circular hole 20A through which the pin portion 6B passes, a circular arc portion 20B concentric with the circular hole 20A on the front side, and a concave portion 20C continuous with the circular arc portion 20B. A right-angled notch 20D is formed on the rear side. The housing-side stopper 20 whose movement is blocked by the lower hinge pin 6 is arranged so that the right end thereof projects slightly from the right side surface of the housing 2, and the right-angled cutout portion 20D at the rear end is exactly aligned with the corner of the vertical wall surface of the housing 2. It is abutted against and is prevented from rotating.

Reference numeral 22 denotes a door-side stopper disposed on the lower surface of the door 3, which has a screw hole 22A, an extrusion protrusion 22B, and an inclined portion 22C. Grooves 3D and round holes 3E are formed in the lower surface of the door 3 corresponding to the screw holes 22A and the push-out projections 22B. The door-side stopper 22 has a push-out projection 22B fitted in the round hole 3E to prevent rotation, and is fixed by being tightened by a screw member 23 which passes through the groove hole 3D and is screwed into the screw hole 22A.

As shown in FIG. 5, in the use state, the door-side stopper 22 is laid flat on the surface of the door 3, and the right end of the door-side stopper 22 is in contact with the circular arc portion 20B of the housing-side stopper 20 and is fixed by tightening. The slot 3D is closed. When the door 3 is opened, the right end of the door stopper 22 moves along the circular arc portion 20B of the housing-side stopper 20 as the door 3 rotates and comes into contact with the concave portion 20C so that the door 3 has a predetermined angle of about 90 ° to 120 °. It is regulated by the opening angle. In order to open the door 3 by about 180 ° during assembly of the control panel, the screw member 23 may be loosened and the door stopper 22 may be rotated to the position shown by the chain double-dashed line, as shown in FIG.

According to the above configuration, the housing side stopper 20 can be fixed only by fitting it to the lower hinge pin 6 of the door 3, and the door side stopper 22 can be screwed and fixed by one screw member 23. It can be manufactured at low cost with less assembly time. Further, since it can be arranged in a narrow space between the upper surface of the supporting portion of the lower hinge pin and the lower surface of the door, it is not necessary to enlarge the control panel for this door stopper device. Further, since the opening angle of the door 3 can be changed only by loosening the screw member 23 and rotating the door-side stopper 22, it is possible to contribute to the reduction of the assembly work of the control panel.

In the above embodiment, the separate spacer 21 is used, but the separate spacer 21 may be unnecessary by forming an annular protrusion on the housing-side stopper 20. Further, although the bottom plate protruding portion 4A is used as the support portion of the lower hinge pin, the lower hinge support plate may be provided on the front surface of the bottom plate portion as in the case of the conventional example 1, and the drain plate is provided at the periphery of the opening. It can also be used in the housing.

[0014]

[Effect of the device]

 As described above, according to the present invention, since the door stopper device is configured by the housing side stopper that is fitted and fixed to the lower hinge pin of the door and the door side stopper that is screwed into the groove hole on the lower surface of the door, the device is compact. -There is an effect that it is possible to obtain one that can be made inexpensive and that can be swiftly increased in opening angle when necessary.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part showing a stopper device for a control panel door according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a control panel according to an embodiment of the present invention.

3 is a front view of a portion of a door stopper device of the control panel of FIG.

FIG. 4 is a plan view of FIG.

FIG. 5 is a plan view showing a housing side stopper according to an embodiment of the present invention.

[Explanation of symbols]

 2 Case 3 Door 4 Bottom plate 6 Lower hinge pin 20 Case side stopper 20A Round hole 20B Arc part 20C Recess 20D Right angle cutout 22 Door side stopper 22A Screw hole 22B Extrusion protrusion 23 Screw member

Claims (1)

[Scope of utility model registration request] 1. A control panel provided with a door which is rotatably supported by hinge pins at the top and bottom, and is inserted into the lower hinge pin and disposed between the upper surface of the support portion of the lower hinge pin and the lower surface of the door. It is provided with a housing side stopper and a door side stopper whose one end is fixed to the lower surface of the door by screwing it in contact with the housing side stopper.The rear side of the housing side stopper is positioned by abutting against the vertical wall surface of the control panel housing. , An arc portion for allowing the end portion of the door-side stopper to rotate, and a recessed portion that is continuous with the arc portion and that abuts the end portion of the door-side stopper to stop rotation of the door Stopper device for control panel doors that is characterized by being