JPH0611337Y2 - Rotation control mechanism for opening / closing door in equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a rotation restricting mechanism of an opening / closing door in various devices such as a dishwasher, a cooker, and a container.

[Conventional technology]

In each of the above-mentioned various devices, an opening / closing door that opens and closes one side opening of the box-shaped device body is rotatably attached to both lower sides of the opening on both lower sides of the opening via hinges. At the same time, the tension springs stretched between these hinges and the main body of the equipment constantly urge them in the closing direction, and when the door is opened, one end of each hinge and stoppers provided on both sides of the opening are provided. By abutting, rotation of the door more than a predetermined amount is restricted,
An example thereof is shown in Japanese Utility Model Publication No. 58-2291.

However, in this type of equipment, as shown in the above publication, the inward edge of the opening of the equipment body serves as a stopper directly or through a reinforcing body, and each hinge on the door side One end portion of the contact portion abuts on the inner side surface of the inward edge portion.

[Problems to be solved by the invention]

By the way, in this type of equipment, since the contact surfaces of the stoppers with respect to the hinges are in a vertical state and the pivots of the hinges are located largely off the extension line, the hinges are This causes the stoppers to locally come into contact with a large force, deforming the inward edge of the opening of the device body that is each stopper, and the hinges do not contact the stoppers at the same time and the door is distorted. It also causes Further, when the hinges are brought into contact with the stoppers and the rotation thereof is restricted, a force that is vertically displaced with respect to the contact surfaces of the stoppers is applied, so that the contact surfaces of these both are easily worn.

On the other hand, each tension spring that constantly urges the door in the closing direction is stretched between each hinge and the bottom side surface of the equipment body, and the dishwasher disclosed in the above publication and other various parts on the bottom side of the equipment body. As for equipment that houses equipment, it is troublesome to replace the tension spring and adjust the spring force.

Therefore, the object of the present invention is to solve the former problem by defining the relationship between the pivotal fulcrum of each hinge and the contact surface of each hinge and stopper, and to adjust the tensioned state of each tension spring as necessary. The provision is to solve the latter problem.

[Means for solving problems]

A contact surface of one end portion of each hinge with respect to each stopper is formed so that a rotation fulcrum of each hinge is located on or near an extension line of the contact surface, and each stopper is provided with each of the stoppers. The contact surface with respect to the hinge is formed in a shape corresponding to the contact surface of the hinge, and is provided on both sides of the opening of the device body so that the position of the contact can be adjusted in the front-rear direction with respect to the opening. It is a thing.

[Function and effect of device]

By adjusting the positions of the stoppers in the front-rear direction when the stoppers are provided, the rotation fulcrum of each hinge can be positioned on or near the extension line of the contact surfaces of both the hinge and the stopper. The contact surfaces contact each other in a substantially parallel state in the entire longitudinal direction and with a substantially uniform force, and no local force or a force in the direction of displacement acts between the contact surfaces. Therefore, no strong local force is exerted from each hinge on any part of the main body of the device, so that the hinge is not deformed at an early stage, and the abrasion due to the contact between each hinge and the stopper is small so that the door is not damaged. Less distortion.

On the other hand, in such a device, one end side locking part of each tension spring is provided at the rear part of the device body and the other end side locking part is provided at the other end part of each hinge, and each tension spring is always below the stopper. By tensioning it in the front-back direction along each side of the device body, you can easily replace each tension spring and adjust the spring force by the front-back work in the device body. it can.

〔Example〕

The first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 schematically shows a dishwasher adopting a rotation restricting mechanism according to the present invention. The main body of the washing machine is composed of a lower housing 11 and an upper housing 12. The lower housing 11 accommodates a pump, a drive mechanism, and various other parts (not shown).
As shown in FIGS. 1 and 2, a pair of cleaning nozzles 13 and rinsing nozzles 14 are provided above and below the inside of the nozzles, respectively. Also, the upper housing 12
A rectangular support frame 15 is disposed on the lower inner peripheral wall of the
The support frame 15 has a front opening 12 a of the upper housing 12.
Supports a tableware storage rack that can be moved in and out through. The front opening 12a of the upper housing 12 is the same housing 1
It is opened and closed by a door 16 rotatably attached to the lower front part of the table 2, and the inside thereof is a washing room R for dishes.

Then, the door 16 is, as shown in FIGS. 2 and 3,
It is assembled on both sides via the hinge 21 shown in FIGS. 4 and 5. The hinge 21 is provided with a support pin 21a at an intermediate base and is slightly separated from the locking pin 21.
b, the other end side is formed on the attachment portion 21c to the door 16, and the inclined contact surface 21d is formed on one end side thereof. The support pin 21a is provided on the extension of the contact surface 21d.
Is almost located. Each hinge 21 has its mounting portion 21c.
Is fastened to the inner right and left side surfaces of the door 16 by means of, and is rotatably supported in the front-rear direction by the boss portions 12b protruding to the lower side surfaces of the upper housing 12 via the support pins 21a. . In this state, one end of each hinge 21 extends into the gap between the outer plate 12c of the upper housing 12 and the indoor covers 12d fixed to the left and right side surfaces thereof. Further, a mounting plate 12e fixed to the inner surface of the outer plate 12c extends forward and backward along the inner surface of the outer plate 12c in this gap. One end of each tension spring 22 is locked to the rear part of each mounting plate 12e, and the other end is fixed to each hinge 21.
The hook 23 is locked to one end of the hook 23 locked to the locking pin 21b. Each tension spring 22 is stretched in the front-rear direction and urges the door 16 so as to always close the door 16. A stopper 24 is attached to the front portion of each mounting plate 12e above the tensioning height of each tension spring 22.

The stopper 24 is formed by bending a plate by press molding as shown in FIG. 6 and FIG.
a, the contact surface 24b, and the hanging portion 24c, and the mounting plate portion 24a is provided with a mounting long hole 24d. The stopper 24 has two screws 25a and 25b screwed to the mounting plate 12e through the elongated hole 24d on the rotation locus of the contact surface 21d of the hinge 21 at the front of the mounting plate 12e.
Installed by. The width of the slot 24b is 25 for each screw.
It is formed slightly larger than the diameter of a and 25b, and by loosening each screw 25a and 25b, fine adjustment of the dimension corresponding to machining error, assembly error, etc. along the slot 24b in the front-rear direction or in the inclination direction. And its contact surface 24b
The support pin 21a of the hinge 21 is tightened and fixed at a position substantially located on the extension line of.

Further, the intersection angle between the extension line in the longitudinal direction of the slot 24d of the stopper 24 and the extension line in the longitudinal direction of the contact surface 24b is an acute angle.

In the dishwasher having such a structure, when the door 16 is rotated by about 90 ° against the tension spring 22 when the door 16 is opened, as shown in FIG.
1d contacts the contact surface 24b of the stopper 24, and the door 16
Further rotation is restricted, and is held substantially horizontally.
When the door 16 is closed, the door 16 is rotated by being assisted by the tension spring 22 to close the opening 12a of the upper housing 12.

By the way, in the washing machine, the rotation fulcrum (support pin 21a) of each hinge 21 is the hinge 21 and the stopper 2.
4 is substantially located on the extension line of the contact surfaces 21d and 24b. For this reason, the contact surfaces 21d and 24b of these both contact in a substantially parallel state in the entire longitudinal direction and contact with a substantially uniform force, and a force in a direction in which the local force is deviated to both contact surfaces 21d and 24b. It has no effect. Therefore, no large local force acts from each hinge 21 at any portion of the upper housing 12 to cause early deformation, and also wear due to contact between the contact surfaces 21d and 24b. There are few door distortions.

Since the positions of the stoppers 24 are adjustable, the contact surface 24b of the stoppers 24 can be adjusted by finely adjusting the stoppers 24.
It is easy to allow the support pin 21a to be substantially positioned on the extension line of.

Further, in the dishwasher, the one end side locking part of each tension spring 22 is provided at the rear part of each mounting plate 12e, and the other end side locking part is the other end of the hinge 21 opposite to the contact surface. And tension springs 22 are stretched in a substantially horizontal direction along the mounting plates 12a in the front-rear direction. Therefore, the tension springs 22 can be easily replaced and the spring force can be adjusted by changing the locking portions by the front and rear operations in the upper housing 12, and the tension springs 22 can prevent water droplets from forming various parts. It is not guided into the lower housing 11 to be stored.

In the above embodiment, the rotation restricting mechanism according to the present invention is applied to the door of the dishwasher, but the mechanism can also be applied to the opening / closing doors of the cooking device, the storage device, and other various devices. It is a thing.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a dishwasher having a rotation restricting mechanism according to the present invention, FIG. 2 is a vertical sectional side view of an upper housing of the same, and FIG. 3 shows the rotation restricting mechanism. A side view, FIG. 4 is a side view of a hinge constituting the same mechanism, FIG. 5 is a front view thereof, FIG. 6 is a side view of a stopper constituting the same mechanism, and FIG. 7 is a front view thereof. Explanation of reference numerals 12 ... upper housing, 12a ... opening, 16 ...
Door, 21 ... Hinge, 21a ... Support pin, 21d ...
Abutment surface, 22 ... tension spring, 24 ... stopper, 24b ... abutment surface, 24d ... elongated hole.

Claims (2)

[Scope of utility model registration request] 1. An opening / closing door for opening and closing one side opening of a box-shaped device body so as to be openable and closable is attached rotatably through hinges on both lower sides of the opening and closing sides. The tension springs stretched between the hinges and the device body constantly urge them in the closing direction, and when the door is opened, the end portions of the hinges come into contact with stoppers provided on both sides of the opening. In a device in which rotation of the door is regulated by a predetermined amount or more, the contact surface of one end of each hinge with respect to each stopper is rotated on or near an extension line of the contact surface. The fulcrum is positioned so that the stoppers have contact surfaces with respect to the hinges in a shape corresponding to the contact surfaces of the hinges, and the openings are formed on both sides of the opening of the device body. Front and back to the department Rotation restricting mechanism of the door in the apparatus, characterized in that provided adjustably to direction. 2. The one end side locking part of each tension spring is located at the rear part inside the device body, and the other end side locking part is located at the other end part of each hinge, and each tension spring is always The opening / closing door rotation restricting mechanism according to claim 1, which is stretched in the front-rear direction along each side of the apparatus body below each stopper.