JP3064614U - Door stopper - Google Patents

Abstract

(57) [Problem] To provide a stopper capable of softly locking a door in a fully opened state, and to smoothly close the door without forcing the door. A short shaft 5 protruding from an upper end surface of a door 1 is slidably fitted in a guide groove 43 of an arm 4 pivotally supported by an upper frame 21 of a door mounting opening. A leaf spring 63 that soft-locks the short shaft 5 in the guide groove 43 is provided at a door stopper that restricts the opening angle of the door 1 by hitting the front end.

Description

[Detailed description of the invention]

[0001]

[Field to which the invention belongs]

 The present invention relates to a stopper for preventing a door from opening beyond a predetermined angle.

[0002]

2. Description of the Related Art and Problems to be Solved

 FIGS. 5 and 6 show a stopper that regulates the opening angle of the door (1). This is achieved by opening a guide groove (43) in the arm (4) pivotally supported in the horizontal plane on the upper frame of the door mounting opening, and forming a short shaft (4) protruding from the upper end surface of the door (1). 5) is slidably fitted in the guide groove (43), and is opened until the short shaft (5) hits the door pivot end of the guide groove (43).

The guide groove (43) of the stopper has a locking enlarged portion (48) at the tip, and the short shaft (5) is engaged with the locking enlarged portion (48) so that the door ( 1) can be locked in the fully open position.

[0004]

[Problems to be solved by the invention]

 When the door (1) connected to the stopper is closed, if the door (1) is not forced to swing once by applying a force in a direction to open the door (1), the short-axis (5) is extended by the locking enlarged portion (48). Do not escape. When a force is further applied to the fully opened door in the opening direction, there is a problem that the pivot portion of the arm (4) and the short shaft (5) are forcibly applied and are easily damaged. The present invention clarifies a stopper that can solve the above problem.

[0005]

[Means to solve the problem]

 In the door stopper of the present invention, the short shaft (5) protruding from the upper end surface of the door (1) is inserted into the guide groove (43) of the arm (4) pivotally supported by the upper frame (21) of the door mounting opening. The door (1) is slidably fitted, and the short axis (5) contacts the end of the guide groove (43) on the door pivot side to restrict the opening angle of the door (1). ) Is provided with a leaf spring (63) for soft locking.

Although a single leaf spring (63) may be used, it is desirable to dispose a pair of leaf springs (63) (63) facing each other with the slide transition path of the short axis (5) interposed therebetween.

As a mounting structure of the leaf spring (63), one of the upper and lower surfaces of the free end of the arm (4) is shaved to form a step (46), and the step (46) is put over the step (46). The member (6) is fixed, and the leaf springs (63) and (63) are formed integrally with the covering member (6) so that the covering member (6) and the leaf spring (63) do not protrude from the thickness of the arm (4). It is desirable that

[0008]

[Action and effect]

 When the door (1) is opened, the short axis (5) on the door (1) slides along the guide groove (43) of the arm (4), and a plate is formed at the end of the guide groove (43) on the door pivot side. While being softly locked by the spring (63), further opening is prevented at the end of the guide groove (43). The door (1) keeps the open state even when receiving a gentle wind.

When the door (1) is pushed in the closing direction or pulled in the closing direction, the short axis (5) escapes from the pressing of the leaf spring (63) while bending the leaf spring (63), and the door (1). ) Closes. It is not necessary to swing the door by applying a force in the direction of further opening the fully opened door (1) as in the prior art, so that the stopper is not overly pressed and the stopper can be prevented from being damaged.

If the short axis (5) is sandwiched between the two leaf springs (63), the short axis (5) can be stably soft-locked.

If the leaf springs (63) and (63) are formed integrally with the covering member (6) covering the step (46) of the arm (4), the leaf spring (63) can be stably held even in a narrow space. .

[0012]

[Embodiment of the invention]

 FIG. 1 shows a closed state of a door (1) attached to a vertical frame (2) of a door attachment opening by a hinge (3) and a fully opened state regulated by a stopper (7). The stopper (7) has an arm (4) pivotally supported on the upper frame (21) of the mounting opening of the door (1) in a horizontal plane, and protrudes from the upper end surface of the door (1) on the pivot side. The short shaft (5) slidably fitted in the guide groove (43) opened in the arm (4), and the short shaft (5) attached to the door pivot end of the guide groove (43) can press the short shaft (5). And a pair of leaf springs (63).

The arm 4 is formed in a strip shape having a thickness of about 3 mm so as to fit in a narrow space between the upper frame 21 of the mounting opening of the door 1 and the upper end of the door 1. I have. A pivot (41) for pivotally supporting the base end of the arm (4) projects from a plate (42) fixed to the upper frame (21).

The guide groove (43) is formed near the free end side of the arm (4) and penetrates the upper and lower surfaces along the longitudinal direction of the arm, and has enlarged portions (44) and (45) formed at both ends of the groove. ing. The expanded portion (44) on the door pivot side of the arm (4) is for mounting a leaf spring (63), and the expanded portion (45) on the base end side of the arm is mounted on the short axis (4) of the door (1). The enlarged portion (45) is located outside the effective section in which the short axis (5) slides when the door (1) is opened and closed. ing.

The free portion of the arm (4) has a stepped portion (46) formed by cutting the lower surface of the enlarged portion (44) from the substantially central portion to the distal end by 1 mm to form a stepped portion (46). The side steps (47) (47) are formed by shaving.

The step members (46), (47), and (47) of the arm (4) are covered and fixed with a covering member (6) integrally formed with leaf springs (63, 63). The covering member (6) is formed by stamping and bending a 1 mm-thick plate having spring properties such as SUS304, and the covering member (61) covering the step portion (46) of the arm (4). A pair of leaf springs (63) and (63) provided between the sandwiching plates (62) and (62). The rising height of the sandwiching plate (62) and the leaf springs (63), (63) from the upper surface of the cover plate (61) is 2 mm.

The base ends of the leaf springs (63) and (63) are bent at right angles to the cover plate (61) in the same direction as the holding plate (62) to be parallel to the holding plate (62). The distal ends of the springs (63) and (63) are bent symmetrically to each other and open at the distal ends. The opening width between the tips of the leaf springs (63) and (63) is substantially the same as the width of the guide groove (43), and the opening width of the narrowest part is the sliding ring (50) on the short axis (5) described later. ) Is smaller than the outside diameter.

The covering member (6) covers the covering plate (61) on the step portion (46) of the arm (4), and covers the sandwiching plates (62) and (62) on the side step portions (47) and (47). The leaf springs (63) and (63) are accommodated in the enlarged portion (44) and fixed to the arm (4) by spot welding or the like. Between the leaf springs (63) and (63), the end of the transition path of the short axis (5) is formed continuously with the guide groove (43) of the arm (4).

The plate thickness of the covering member (6) and the sandwiching plate (62) corresponds to the cutting depth of the steps (46) and (47) of the arm (4), and the plate spring (63) Since neither (63) nor the sandwiching plates (62) and (62) protrude from the upper and lower surfaces of the arm (4), when the arm (4) enters the gap between the upper frame (21) and the upper end of the door (1), The cover member (6) does not interfere.

The short axis (5) on the door (1) protrudes from a plate (52) fixed to the upper end surface of the door (1), and the length of the axis is longer than the thickness of the arm (4). A resin sliding ring (50), which is slightly larger and whose outer diameter is slightly smaller than the width of the guide groove (43) of the arm (4), is fitted and has a thin retaining flange (51) at the tip. . The retaining flange (51) is smaller than the enlarged portion (45) of the arm (4).

The stopper (7) is attached to the vertical frame (2) with the hinge (3) by attaching the door (1) to which the short axis (5) is attached, and then expanding the arm (4). ), The retaining flange (51) of the short shaft (5) is fitted and the short shaft (5) is engaged with the guide groove (43). Finally, the pivot-side plate (42) of the arm (4) is fixed to the upper frame (21).

However, when the door (1) is opened, the short axis (5) on the door (1) slides along the guide groove (43) of the arm (4) to move the leaf springs (63) and (63). By bending, the guide groove (43) reaches the door pivot end, and further opening of the door (1) is prevented. Even when the door (1) is to be closed, the resistance to bend the leaf springs (63) acts, so that the door (1) keeps the open state even under a gentle wind.

When the door (1) is pushed in the closing direction or pulled in the closing direction, the short axis (5) escapes from between the leaf springs (63) while bending the leaf spring (63), and the door (1). Closes. Unlike the conventional case, there is no need to apply a force in the direction of further opening the fully opened door (1), so that the stopper is not overloaded and the stopper can be prevented from being damaged.

Since the short axis (5) is held by the two leaf springs (63) so as to sandwich the short axis (5), the short axis (5) can be stably soft-locked. Since the leaf springs (63) and (63) are integrally formed with the covering member (6) covering the step portion (46) of the arm (4), the leaf spring (63) can be stably held even in a narrow space.

In implementing the present invention, the number of leaf springs (63) is not limited to two, and even one can press the short shaft (5) to perform soft locking.

In the embodiment, the step (46) of the arm (4) is provided and the lower cover member (6) is covered. However, the step is formed by cutting the upper surface of the arm (4). The covering member (6) can be covered from above.

The means for attaching the leaf spring (63) is not limited to providing the leaf spring (63) integrally with the covering member (6) as described above. It doesn't matter.

[Brief description of the drawings]

FIG. 1 is a plan view showing a closed state and a fully opened state of a door (1).

FIG. 2 is a perspective view of a state where a stopper is attached.

FIG. 3 is a cross-sectional view of a state where a stopper is attached.

FIG. 4 is a sectional view taken along the line AA of FIG. 2;

FIG. 5 is a plan view of a main part in a closed state of a door to which a conventional stopper is attached.

FIG. 6 is a plan view of the above fully opened state.

Claims (3)

[Utility model registration claims] A short shaft (5) projecting from an upper end surface of a door (1) is slidable in a guide groove (43) of an arm (4) pivotally supported by an upper frame (21) of a door mounting opening. Fit, short axis (5) is guide groove
A leaf spring (63) for soft-locking the short axis (5) in the guide groove (43) is provided at a door stopper for restricting the opening angle of the door (1) by hitting the door pivot end of the door (43). Door stoppers. 2. The door stopper according to claim 1, wherein the pair of leaf springs (63) are arranged opposite to each other with the slide transition path of the short axis (5) interposed therebetween. 3. A step (46) is formed at the free end of the arm (4) by cutting either one of the upper and lower surfaces, and the cover member (6) fixed over the step (46). The door stopper according to claim 1 or 2, wherein the leaf spring (63) and the leaf spring (63) are integrally formed, and the covering member (6) and the leaf spring (63) do not protrude from the thickness of the arm (4). .