JPH028066Y2 - - Google Patents

Description

[Detailed description of the invention] The invention features a screw main body that is fixed to the inner surface of a side panel of a cabinet, etc., and a socket that is embedded in a recess of the door and fixes the door, which can be opened and closed using multiple arms, etc. This relates to a screw that has the function of keeping the door closed, and is designed to prevent accidental external force from being applied to the engaging element, which is pivoted to hold the door closed by engaging the receiving member with a spring that is elastically biased by the door closing operation. The purpose of this is to prevent the rotational movement from being performed in an undesired position even if the door is exposed to force, and thereby to ensure the operation of holding the door closed.

The present invention will be described in detail below based on the illustrated embodiment. As shown in FIGS. The base end of the guide arm 3 is rotatably connected by a shaft pin 4 to two arm portions 2a, 2a which are formed in a rectangular shape and extend forward and are arranged side by side at an appropriate interval.

Further, the rear end of a slide arm 6 is rotatably connected to the rear end of the screw main body 2 with an auxiliary arm 5 interposed therebetween.
The guide arm 3 intersects at a substantially intermediate position and is rotatably pivoted by a shaft pin 8, and when the guide arm 3 is rotated about the shaft pin 4, the slide arm 6 is moved in the front-rear direction. It is designed to slide towards the top.

The front half of the slide arm 6 is formed into two arm parts 6a, 6a arranged in parallel at an appropriate interval, and the guide arm 3 is pivotally connected between the arm parts 6a, 6a. At the same time, the distal ends of the arm parts 6a, 6a are bent into an abbreviated shape on the side, and the front end of the socket 9 formed in the shape of a cup is pivotally connected to the distal ends by a shaft pin 10.

On the other hand, the guide arm 3 is formed into an abbreviated shape in cross section, and a support arm 11 is attached to the tip thereof.
is rotatably mounted with a shaft pin 12, and the other end of the support arm 11 is rotatably connected to the rear end of the socket 9 with a shaft pin 13, and in this way, the screw main body 2 and The socket 9 is connected so that it can be opened and closed.

Further, the socket 9 is located in the recess 1 provided in the door 14.
4a and is fixed with screws (not shown) to support the door 14.

The device for holding the closed door is formed as follows.

At the front end of the screw main body 2, an engaging element 16 (to be described later) is provided between both arm parts 2a, 2a.
an arcuate guide surface 15a for the arcuate guide surface 15;
A receiving member 15 having an engaging recess 15b facing rearward is fixed to the rear end of the guide arm 3, and an engaging protrusion 16a is protruding from one end of the guide arm 3 at its base end. The formed engager 16 is attached to its engagement protrusion 1
6a is rotatably pivoted by a shaft pin 17 in relation to the arcuate guide surface 15a of the receiving member 15, and a spring 19 is mounted on the shaft pin 18 on the distal end side of the guide arm 3. One end 19a of the spring 19 is hooked to an appropriate position on the guide arm 3, and the other end 19b is hooked to a protrusion 16b protruding from the other end of the engager 16. In the figure, the engaging protrusion 16a is elastically biased clockwise in the figure, and the engaging protrusion 16a is in elastic contact with the arcuate guide surface 15a of the receiving member 15.

Here, the arcuate guide surface 15a is connected to the receiving member 1.
A bulging portion 1 provided in a substantially door shape upward from the front end of 5.
5c, and has a length sufficient to guide the engaging protrusion 16a of the engaging element 16 in the door opening/closing area, and the engaging recess 15b is provided on the surface of the engaging protrusion 16a. It is provided with sufficient width and depth to fit.

Furthermore, the engaging element 16 has a short length from the shaft pin 17, which is the rotational fulcrum, to the engaging protrusion 16a, and a long length to the other end 16b, so that the engaging element 16 is in the closed state shown in FIG. The engaging element 16 rotating around the shaft pin 17 receives a force g from the spring 19, and this force is doubled and transmits a force p to the engaging recess 15b of the receiving member 15, thereby strongly closing the door. In addition, a stepped portion 16c is provided on one side and engages with the end surface 3a of the guide arm 3 when the door is in the open state as shown in FIG. Even if an accidental external force is applied to the engaging element 16 in the opening/closing area,
The engaging element 16 is prevented from passing over the dead center of the spring 19 and being reversed counterclockwise, and in the door opening/closing area, the engaging part 16a is always aligned with the arcuate guide surface 15a.
It looks like it's being bombarded by.

The engaging concave portion 15b of the receiving member 15 and the engaging protrusion 16a of the engaging member 16 may be provided in two locations on the left and right sides, or may be provided in one location each, but in either case. The tip of the engagement protrusion 16a and the upper opening edge 15d of the engagement recess 15b are each formed into an arcuate surface having an appropriate curvature, so that the engagement protrusion 1
5a is the sliding and engaging recess 1 with the arcuate guide surface 15a.
5b can be smoothly engaged and disengaged.

Further, the receiving member 15 is connected to the threaded body 2,
The guide arm 3 is fixed to the threaded body 2 without swinging by a shaft pin 4 that pivotally connects it and a fixing pin 20.

The screw main body 2 has a plurality of adjusting members 2 attached to a fixing member 21 fixed to the side plate 1 with screws.
2, 23, 24... are fixed to the side plate 1 so that the position can be adjusted in the front, rear, left, right, and up and down directions.

In the above structure, when the door 14 is attached to a cabinet or the like as shown in the figure and opened and closed using this, the engaging element 16 is normally resiliently biased in the clockwise direction by the spring 19 as shown in FIG. Forced,
In this position, the step 16c is connected to the end surface 3 of the guide arm 3.
Since the door 1 is engaged with the spring 19, it will not be rotated counterclockwise beyond the dead center of the spring 19 even if an external force is applied, and will remain in the state shown in the figure.
When the door 14 is opened or closed within the opening/closing range 4, that is, from the fully open position in FIG. 1 to the position immediately before closing in FIG. It is rotationally displaced while being elastically guided by the guide surface 15a.

When the door 14 is closed until just before closing, the engager 1
The engagement protrusion 16a of No. 6 comes off the arcuate guide surface 15a and becomes the state shown in FIG. Since it is resiliently biased in the rotational direction, the engaging element 16 rotates clockwise due to the spring force, and the engaging protrusion 16a is resiliently engaged with the engaging recess 15b as shown in FIG. The door is closed, and the spring force acts as a closing force, so that the door is kept closed.

Next, when the door 14 is opened in the closed state, the guide arm 3 is rotated counterclockwise around the pivot point with the slide arm 6 via the support arm 11 along with the engager 16. At this time, the engagement protrusion 16a is pressed by the upper opening edge 15d of the engagement recess 15b in the receiving member 15, the engagement element 16 rotates counterclockwise against the spring force, and the engagement is completed. At the same time as it is removed, the engaging protrusion 16a rides on the arcuate guide surface 15a, and thereafter slides elastically on the arcuate guide surface 15a, and each member operates in the opposite direction to that when the door is closed, so that the door can be opened.

As explained above, in the present invention, the base end of the guide arm 3 is pivotally attached to the front end of the screw main body 2 attached to the base frame, and the auxiliary arm 5 is attached to the rear end of the screw main body 2. A slide arm 6 is pivotally connected via the guide arm 3 and the slide arm 6, and the guide arm 3 and the slide arm 6 intersect with each other at the intermediate portion in the longitudinal direction, and the guide arm 3,
The slide arms 6 are pivotally connected to each other, and the door 14
The tip of a slide arm 6 is pivotally attached to the front end of a socket 9 attached to the socket 9, and the tip of a guide arm 3 is pivotally attached to the rear end of the socket 9 via a support arm 11. In the screw thread, a receiving member 15 is fixed to the front end of the screw main body 2, and is formed with an upper arcuate guide surface 15a on the front side and an engagement recess 15b on the lower rear side adjacent to each other. Engagement element 16 having mating protrusion 16a
is pivotally attached to the base end of the guide arm 3, and the engaging protrusion 16a of the engaging member 16 extends from the arcuate guide surface 15a of the receiving member 15 to the engaging recess 15b.
The spring 19 extends between the opposite end of the engagement protrusion 16a of the engagement element 16 and the guide arm 3, and presses the engagement protrusion 16a toward the receiving member 15. It is characterized by being installed.

Therefore, in the case of the screw plate according to the present invention, the door 14
In the opening/closing region, the engaging element 16 elastically guided by the arcuate guide surface 15a rotates due to the spring force and engages with the engaging recess 15b just before closing the door.
At this time, the engaging element 16 is not brought into contact with another member, but rotates by itself due to the spring force when the engaging protrusion 16a comes off the arcuate guide surface 15a, so there is no possibility of collision when the door is closed. No unpleasant sounds such as noise are generated, and the spring force is equal to the closing force of the door 14.
After the door is closed, it acts as a holding force, so the door can be closed statically and easily, and a large closing force can be obtained. Since it is in elastic contact and also in contact with the guide arm 3,
The engaging element 16 does not rotate even if an unexpected external force is applied in any direction, and therefore, it is possible to prevent the engaging element 16 from rotating due to an external force, and to ensure opening/closing of the door and keeping the door open. In addition, according to the present invention, since the spring force acts on the arcuate guide surface 15a via the engaging element 16 in the opening/closing area of the door 14, the door 1
4 can also be stopped at any open position.

[Brief explanation of the drawing]

Figures 1 and 2 show examples of the use of the screw according to the present invention. Figure 1 is a vertical side view of the door in its open state, Figure 2 is a vertical side view of the door in its closed state, and Figure 2 is a vertical side view of the door in its closed state. 3
The figure is an explanatory view showing the state of the engager relative to the receiving member in the same screw thread just before the door is closed. 1... Side plate (base frame), 2... Spiral body, 3...
Guide arm, 5... Auxiliary arm, 6... Slide arm, 9... Socket, 11... Support arm, 15... Receiving member, 15a... Arc-shaped guide surface,
15a...Engagement recess, 16...Engager, 16a...
...Engaging protrusion, 19...spring.

Claims (1)

[Scope of utility model registration request] A base end of a guide arm is pivotally attached to the front end of a screw body that is attached to the base frame, and a slide arm is pivotally attached to the rear end of the screw body via an auxiliary arm, The guide arm and the slide arm intersect with each other at the middle part in the longitudinal direction, and the guide arm and the slide arm are pivotally connected to each other at the intersection point. The tip of the guide arm is pivotally attached to the rear end of the socket, and the tip of the guide arm is pivotally attached to the rear end of the socket via the support arm. A receiving member having mating recesses formed adjacent to each other is fixed to the front end of the threaded main body, and an engaging element having an engaging protrusion at one end is pivotally attached to the base end of the guide arm. The engaging protrusion of the engaging element is in contact with the receiving member within a range from the arcuate guide surface to the engaging recess, and the engaging protrusion of the engaging element is in contact with the opposite end of the engaging protruding part of the engaging element and the guide arm. , a screw number equipped with a spring for pressing the engaging protrusion toward the receiving member.