JPH0647554U - Door guard - Google Patents

Abstract

(57) [Summary] [Purpose] The cushioning property is increased by increasing the thickness of the inner wall of the warm insulation material at locations where doors and impacts occur frequently to prevent the door surface from being damaged. Door guard to do. [Structure] A hook 1 having a locking projection at the tip of a corner portion and fixed to an indoor opening / closing edge of a door D, a base 4 fixed to a door vertical frame W, and a pivotal attachment to the base 4. In the door guard which comprises the U-shaped arm 2 covered with the cushioning material 3, the locking projection of the hook 1 engages with the slit 2a of the U-shaped arm 2 to limit the opening angle of the door D. A concave portion 2b is formed at a portion of the U-shaped arm 2 which is sandwiched by the door D and has a pressed contact surface, and the concave portion 2b of the cushioning material 3 is formed so that the outer surface of the cushioning material 3 is flat. It is formed in a thick-walled form that is in close contact with 2b.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door guard, which is mainly used for crime prevention and limits an opening angle of a door so that the door opens only a small angle.

[0002]

[Prior art]

 Conventionally, there is Japanese Utility Model Laid-Open No. 3-898667 as a door guard in which an arm is covered with a warming material. Even if the arm is inadvertently operated to the door lock position and comes outside the door and is sandwiched by the door before the door is completely closed, the door guard will not be attached to the door because the arm is covered with the thermal shock absorbing material. It is not scratched.

[0003]

[Problems to be solved by the device]

 However, according to the above-mentioned conventional door guard, the armor is covered with the warm shock absorbing material so that the arm is prevented from being damaged when the arm is sandwiched between the door and the outside. Since the wall thickness of the warm impact material against the door was thin, the cushioning property to alleviate the impact force of the door was not sufficient.

It is an object of the present invention to provide a door guard having a high cushioning property that softens the impact force of the door without damaging the design appearance.

[0005]

[Means for Solving the Problems]

 As a means for solving the above problems, the invention of the present application is such that the base portion 1a is fixed to the indoor side opening / closing edge of the door D and extends to the inside of the door vertical frame W when the door is closed, and the door vertical frame W. And a U-shaped arm 2 pivotally attached to the U-shaped arm 2, and the U-shaped arm 2 is covered with a cushioning material 3. When the U-shaped arm 2 is covered with the hook 1 so as to receive the locking portion 1b and the door D is opened, the locking portion 1b at the tip of the hook 1 escapes from the slit 2a of the U-shaped arm 2. In a door guard that is in an impossible engagement state and slides to the depth side of the slit 2a to limit the door opening angle, the door D is opened with the U-shaped arm 2 tilted to the lock side when the door D is opened. When the door is closed, attach it to the open / close end of the door D and the door vertical frame. A concave portion 2b is formed at a portion of the U-shaped arm 2 which is sandwiched by the attached base 4 in the pressed contact surface, and the outer surface 3a of the cushioning material 3 corresponding to the concave portion 2b is made flat. Another object of the present invention is to provide a door guard characterized in that it is formed in a thick-walled shape in close contact with the recess 2b.

[0006]

[Action]

 Even if the arm 2 of the door guard is accidentally tilted to the lock position and the arm 2 comes outside the door D and is sandwiched by the door D, the arm 2 of the door guard is attached to the door D and the door vertical frame. Since the cushioning material 3 is formed thick in a portion sandwiched by the base 4 and the cushioning property is secured, the impact force of the door D can be softened sufficiently.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, in the door guard, the base portion 1a is fixed to the opening / closing edge of the door D on the indoor side, and the hook 1 extending inside the door vertical frame W and the door vertical frame U are pivotally attached. The U-shaped arm 2 is covered with a cushioning material 3. The door guard of this embodiment has a spherical locking portion 1b at the tip of the angular portion 1c, and a base portion fixed at the base end of the angular portion 1c to the indoor side opening / closing side edge of the door D with a tapping screw 5. A hook 1 having 1a, a base 4 fixed to a door vertical frame W with a tapping screw 6, and a pair of hinge portions 4a, 4a of the base 4 are formed at the base ends on both sides of the U-shaped arm 2. The pair of hinge portions 2c 1 and 2c 2 are arranged so as to be sandwiched, and the pins 7 and 7 are inserted into the hinge portions 4a and 2c, 4a and 2c facing each other on each side of the pair of hinge portions 4a and 4a 2c and 2c. Then, the snap rings are fitted to the pins 7 and 7, and the U-shaped arm 2 is covered with the cushioning material 3. Then, the door guard covers the hook 1 with the U-shaped arm 2 so as to receive the locking portion 1b of the hook 1 at the base of the slit 2a of the U-shaped arm 2 in the closed state. When the door D is opened, the engaging portion 1b of the hook 1 is in an engaged state that cannot be removed from the slit 2a of the U-shaped arm 2 and slides to the depth side of the slit 2a to limit the door opening angle. It is like this.

In particular, as shown in FIG. 2, the door guard of this embodiment has a structure in which the door D is closed when the door D is opened and the U-shaped arm 2 is tilted to the lock side. Of the cushioning material 3 and the U-shaped arm 2 sandwiched between the open / closed end and the base 4 attached to the door vertical frame W, the U-shaped arm 2 is recessed as compared with other portions. The cushioning material 3 is provided so that the cushioning material 3 has a thick portion corresponding to the concave portion 2b, and the cushioning material outer surface 3a is flat so that the cushioning property is increased.

FIG. 3 shows a U-shaped arm 2. The U-shaped arm 2 has hinge portions 2c and 2c at both base ends. The hinge portions 2c, 2c are provided with index locking concave portions 2d, 2d, 2d at three positions different by 90 degrees, and the index locking concave portion 2d is provided with an inner spring 8 of the base 4 shown in FIG. When the urged ball 9 is fitted so as to be able to escape, the U-shaped arm 2 is tilted parallel to the inside of the door D in the closed state, the posture in which the U-shaped arm 2 is tilted 90 degrees from the posture, and the door further. It is designed to be index-locked when it is tilted 90 degrees to the opposite side of D. As shown in FIGS. 3 (b) and 3 (d), the vertical cross section of the arm straight portion 2e (excluding the portion near the arm base end) and the horizontal cross section of the U-shaped curved portion 2f are semi-ellipses whose major axis is the large dimension a. Shaped outer half 2f 'and a semi-elliptical inner half 2f "having a major axis of a small dimension b are combined into a stacked dumpling shape, and the step bases on both sides of the outer half 2f' and the inner half 2f" are further formed. It has a groove 2g for constricting the cross section. The groove 2g is a continuous groove portion. The cushioning material 3 is made of urethane rubber, for example, and has a C-shaped cross section, is covered on the outer side of the U-shaped arm 2 and is adhered with an adhesive. It is fitted in the groove portions (grooves) 2g, 2g. As shown in FIGS. 3 (c) and 3 (e), the semi-elliptical outer halves 2f ′ having the major axis a of the linear arm portions 2e, 2e on both sides of the U-shaped arm 2 are located closer to the arm base end. A concave portion 2b is formed by cutting out both ends in the major axis direction so that the portion has a dimension b. The recess 2b is a base 4 attached to the open / close end of the door D and the door frame when the door D is closed while the U-shaped arm 2 is tilted to the lock side when the door D is opened. Corresponding to the contact surface of the U-shaped arm 2 that is sandwiched by and, and the concave portion 2b is provided, the portion of the cushioning material 3 corresponding to the concave portion 2b has a size t. It is formed in the thick-walled shape shown, and has high cushioning properties. The cushioning material 3 covers the concave portion 2b and is adhered with an adhesive, and the inner edge portions 3b, 3b at both ends of the C-shaped cross section are left on both sides even if the concave portion 2b is provided. It is fitted in the (groove) 2g.

After opening the door D and passing through the entrance for entering or leaving the room, the arm 2 of the door guard is inadvertently tilted to the lock position before the door D is completely closed by the urging force. Even if the arm 2 comes to the outside of the door D and is sandwiched by the door D, the U-shaped arm 2 has a pressed contact surface which is sandwiched by the open / close end of the door D and the base 4 attached to the vertical frame of the door D. Since the cushioning material 3 has a large thickness and has a high cushioning property, the opening / closing end of the door D closed by the urging force is not damaged, and the impact force of the door D is sufficiently softened. You can

[0011]

[Effect of device]

 As described above, according to the door guard of the present invention, the U-shaped arm is provided with a recessed portion at the pinched contact surface between the open / closed end of the door and the base attached to the door vertical frame. The part of the material that corresponds to the recess is thickened to that extent, and because it is configured to have a high cushioning property, it will scratch the door when it comes outside the door and is sandwiched by the door. Not only does it not cause sticking, but it also eliminates the conventional problem that the impact force of the door was large due to the thin wall thickness of the warm impact material against the door, and the impact noise and vibration of the door can be solved. It is possible to effectively suppress the occurrence of the above, and since the outer surface of the cushioning material is prevented from becoming a locally raised shape, the design appearance is not impaired.

[Brief description of drawings]

FIG. 1 (a) shows a door guard according to an embodiment of the present invention,
A plan view showing a state in which the U-shaped arm falls inside the door so that the door guard is locked when the door is opened,
(B) is a front view.

FIG. 2 is a plan view showing a state where the U-shaped arm of the door guard shown in FIG. 1 is sandwiched between the door and the base of the door guard.

3 (a) is a front view of the U-shaped arm of the door guard of FIG. 1, (b) is a IIIb-IIIb view in (a), and (c) is a partial cross-sectional view of the main part of FIG. , (D) is a IIId-IIId sectional view in (a), and (e) is a IIIe-IIIe sectional view in (a).

[Explanation of symbols]

 D ... Door, 1 ... Hook, 1a ... Base part, 1b ... Locking part, 2 ... U-shaped arm, 2a ... Slit, 2b ... Recessed part, 3. ..Cushioning material, 3a ... External surface of cushioning material, 4 ... Base,

Claims (1)

[Scope of utility model registration request] 1. A hook having a base portion fixed to an opening / closing edge of a door on the indoor side of the door and extending inside the door vertical frame when the door is closed, and a U-shaped arm pivotally attached to the door vertical frame. The U-shaped arm is covered with a cushioning material, and the U-shaped arm is covered with the hook so that the base of the slit of the U-shaped arm receives the engaging portion of the hook when the door is closed. When opened, the engaging portion at the tip of the hook becomes an engaging state that cannot be removed from the slit of the U-shaped arm, and slides to the depth side of the slit to open the door in the door guard that limits the door opening angle. When the door is closed while the U-shaped arm is tilted to the lock side when the door is closed, the U-shaped arm is pressed and abutted by the open / close end of the door and the base attached to the door vertical frame. A concave portion is formed in the surface portion, and the concave portion is formed in the concave portion of the cushioning material. A door guard characterized in that a corresponding portion is formed in a thick-walled shape in close contact with the recess so that the outer surface of the cushioning material becomes flat.