JPH0647555U - Door guard - Google Patents

Abstract

(57) [Summary] [Purpose] A door guard that does not displace the cushioning material from the arm or move backwards due to the impact of the door even if it is used repeatedly. [Structure] Door D having locking protrusion 1b at the tip of angular portion 1
Of the hook 1, which is fixed to the opening-and-closing side edge of the inside of the room, and a U-shaped arm 2 which is pivotally attached to a base 4 which is fixed to the vertical frame of the door and which is covered with a cushioning material 3. Stop protrusion 1
In the door guard in which b is engaged with the slit 2a of the U-shaped arm 2 to limit the opening angle of the door, the arm 2 is provided with a pair of U-shaped concave streak portions 2b, 2b and concave holes 2c, 2c, and a cross section C The inner ends 3a, 3a of the cushioning material 3 formed in a shape are fitted in the pair of U-shaped recessed portions 2b, 2b, and the inner protrusions 3b, 3b are fitted in the recessed holes 2c, 2c.

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, as a door guard in which an arm is covered with a cushioning material, there is Japanese Utility Model Laid-Open No. 3-898667. Even if the arm is inadvertently operated to the door lock position before the door is completely closed and comes outside the door and is sandwiched by the door, the arm is covered with cushioning material and the door is damaged. Sticking does not occur.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional door guard simply attached with the cushioning material, since the warm shock absorbing material and the arm are adhered to each other, the covering fitting force of the cushioning material on the arm is extremely small, and therefore, the cushioning material is repeatedly used. If the adhesion between the arm and the arm is peeled off, there is a problem that the shock absorbing material when the door is closed causes the shock absorbing material to come off from the arm or shift backwards, and also to prevent the child from removing the shock absorbing material from the arm. become.

The present invention has been devised in view of the above-mentioned points, and since the shock absorbing material has a strong covering fitting force with respect to the arm, the shock absorbing material causes the shock absorbing material to be disengaged from the arm or displaced backward. The purpose is to provide a door guard that does not.

[0005]

[Means for Solving the Problems]

 According to the present invention, as means for solving the above problems, the base portion 1a is fixed to the indoor side opening / closing side edge of the door D, and the hook 1 extending to the door vertical frame W is pivotally attached to the door vertical frame W. The U-shaped arm 2 has a U-shaped arm 2 and a cushioning material 3 is coated on the U-shaped arm 2, and the locking portion 1b of the hook 1 is attached to the base of the slit 2a of the U-shaped arm 2 in a closed state. When the door D is opened by covering the hook 1 with the U-shaped arm 2 so that the hook 1 is received, the engaging portion 1b at the tip of the hook 1 cannot be removed from the slit 2a of the U-shaped arm 2. In the door guard which is in a state and slides to the depth side of the slit 2a to limit the opening angle of the door, the U-shaped arm 2 has a U-shaped arm 2 having a central portion having an arm width on the surface that looks like a U-shape. A pair of U's, each of which has a groove formed in the center of the rear arm width. -Shaped concave streak portions 2b, 2b are engraved, and concave holes 2c, 2c into which the cushioning material 3 can be fitted are provided on the outer sides of the required hinges on both sides, and the cushioning material 3 has a cross section C Inner ends 3a, 3a having a C-shaped cross section are fitted into the pair of U-shaped recessed ridges 2b, 2b, and an inner protrusion 3b is provided at a position corresponding to the recessed hole 2c. The present invention provides a door guard that is fitted in the recessed hole 2c.

[0006]

[Action]

 Inner ends 3a, 3a having a C-shaped cross section of the cushioning material 3 are a pair of U-shaped concave streak portions 2b formed in the arm width center of the front surface and the arm width center of the rear surface of the arm 2 which looks like a U shape. , 2b, and the inner projections 3b, 3b of the cushioning material 3 are fitted in the recessed holes 2c, 2c formed on the outer sides of the arms 2 near the required hinges, so that the door D can be opened and closed. Even if it receives a shock, it will not come off or shift from the arm 2.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the door guard includes a hook 1 having a base portion 1a fixed to an opening / closing side edge of the door D on the indoor side and extending to a door vertical frame W, and a U-shaped member pivotally attached to the door vertical frame W. The arm 2 is provided, and the U-shaped arm 2 is covered with the 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 fixed at the base end of the angular portion 1c on the indoor side opening / closing side edge of the door D with a tapping screw 5. A hook 1 having a portion 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 formed at the base ends on both sides of a U-shaped arm 2. The pair of hinge portions 2d, 2d are fitted so as to be sandwiched, and the pins 7, 7 pass through the hinge portions 4a, 2d, 4a, 2d facing each other on each side of the two pairs of hinge portions 4a, 4a, 2d, 2d. Then, the snap ring 8 is 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 U-shaped arm 2 on the hook 1 so that the base of the slit 2a of the U-shaped arm 2 receives the locking portion 1b of the hook 1 in the closed state. When D is opened, the engaging portion 1b of the hook 1 is in an engaging state in which it 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 opening angle of the door D. It is supposed to do.

In particular, the door guard of this embodiment has a pair of U-shaped arms formed by forming grooves in the central part of the arm width on the front surface and the central part of the arm width on the rear surface of the U-shaped arm 2. The recessed portions 2b, 2b are engraved, and the recessed holes 2c, 2c into which the cushioning material 3 can be fitted are provided on the outer side portions on both sides near the required hinges. The cushioning material 3 has a C-shaped cross section. The formed inner ends 3a, 3a are fitted into the pair of U-shaped recessed portions 2b, 2b, and the inner protrusions 3b, 3b are provided at the positions corresponding to the recessed holes 2c, 2c. The cushioning material 3 is fitted into the recessed holes 2c, 2c to prevent the cushioning material 3 from slipping off and falling off in the rearward direction of the arm 2.

FIG. 2 shows a U-shaped arm 2. The U-shaped arm 2 has hinge portions 2d and 2d at both base ends, and recessed holes 2c and 2c are provided at outer portions of both sides near the required hinges. The hinge portions 2d, 2d are provided with index locking recesses 2e 1, 2e, 2e at three positions different by 90 degrees, and are attached to the index locking recesses 2e by an inner spring 9 of the base 4 shown in FIG. When the urged ball 10 is fitted so as to be able to escape, the U-shaped arm 2 is tilted in parallel to the inside of the door D in the closed state, the position in which the U-shaped arm 2 is tilted 90 degrees from the position, and the position of the door D. It is designed to be index-locked when it is tilted 90 degrees to the opposite side. As shown in FIG. 2 (b), the horizontal cross section of the U-shaped curved portion 2 f has a semi-elliptical outer half 2 f ′ with a major axis of large dimension a and a semi-elliptical inner half of a major axis with small dimension b. 2f ″ is combined with each other, and the U-shaped concave streak portions (grooves) 2b are provided at the step bases on both sides of the outer half portion 2f ′ and the inner half portion 2f ″. The vertical section of the arm straight portion 2g (excluding the portion near the base end of the arm and the recessed hole portion) has the same shape. The cushioning material 3 is made of urethane rubber, for example, has a C-shaped cross section, is covered on the outside of the U-shaped arm 2 and is adhered with an adhesive, and the inner edge portions 3a, 3a of the C-shaped cross section have both sides. Are fitted in the groove portions (grooves) 2b, 2b. As shown in FIG. 2 (c), the vertical cross section of the portion of the linear arm portion 2g having the recessed hole 2c has the cushioning member 3 formed in the above-mentioned C shape and the protrusion 3b provided inside the C shape. It has a shape, and the projection 3b is fitted and closely fitted in the recessed hole 2c.

FIG. 3 shows that when the door D is closed with the U-shaped arm 2 tilted to the lock side while the door D is open, the door D is attached to the open / close end and the door vertical frame W. The U-shaped arm 2 and the cushioning material 3 are sandwiched between the base 4 and the recessed portion 2h. 3 is formed thicker in a portion corresponding to the concave portion 2h and has a high cushioning property. 3 (b) and 3 (c) show the cross section thereof. As shown in FIG. 3 (c), the semi-elliptical outer half of which the major axis of the vertical cross section of the arm linear portion 2g is the large dimension a 1. The portion 2f 'is formed into a recess 2h by cutting off each dimension t at both ends in the major axis direction so that the portion near the base end of the arm has the dimension b. The cushioning material 3 covers the recessed portion 2h 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 recessed portion 2h is provided. It is fitted in the (groove) 2b.

The door guard is officially used after the door D is closed and the arm 2 is engaged with the hook 1. However, if the arm 2 is tilted before the door D is closed, the arm 2 is closed. Since the door D may come into contact with the surface of the inner door D and damage the door D, a cushioning material 3 is provided outside the arm 2 so that even if the cushioning material 3 receives a shock due to opening and closing of the door D, the arm 2 The arm 2 is provided with a pair of U-shaped concave streak portions 2b, 2b and concave holes 2c, 2c so as not to come off or shift from the inner end 3a, 3a of the cushioning material 3 formed in a C-shaped cross section. Is fitted in the pair of U-shaped recessed portions 2b, 2b, and the inward projections 3b, 3b are fitted in the recessed holes 2c, 2c.

[0012]

[Effect of device]

 As described above, according to the door guard device of the present invention, the inner end of the cushioning material having a C-shaped cross section is engraved in the central portion of the arm width on the front surface and the central portion of the arm width on the back surface that look like a U-shape of the arm. The cushioning material is fitted into a pair of U-shaped recessed portions, and the inner projections of the cushioning material are fitted into the recessed holes formed on the outer sides of the arms near the required hinges. It has a strong covering force on the arm, so it will not come off or slip off from the arm even if it is impacted by opening and closing the door, and it will prevent children from easily removing the cushioning material from the arm. it can.

[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.

2 (a) is a front view of the U-shaped arm of the door guard of FIG. 1, (b) is a IIb-IIb diagram in (a), and (c) is a IIc-IIc diagram in (b).

3 is a plan view showing a state in which the U-shaped arm of the door guard of FIG. 1 is sandwiched between the door and the base of the door guard, (b) is a IIIb-IIIb view in (a), and (c) is (b). IIIc-IIIc figure in FIG.

[Explanation of symbols]

 D ... Door, W ... Door vertical frame, 1 ... Hook, 1a ... Base part, 1b ... Locking part, 2 ... U-shaped arm, 2a ... Slit, 2b ... Recessed portion, 2c ... Recessed hole, 3 ... Buffer material, 3a ... Inner end, 3b ... Inward projection,

Claims (1)

[Scope of utility model registration request] 1. A U-shaped arm in which a base portion is fixed to an opening / closing side edge of a door on the indoor side and extends to a door vertical frame, and a U-shaped arm pivotally mounted to the door vertical frame. Cushioning material is coated on the U-shaped arm so that the hook engaging portion is received at the base of the slit of the U-shaped arm in the closed state.
When the door is opened by covering the hook with the V-shaped arm, the engaging portion at the tip of the hook is in an engaging state in which it cannot be removed from the slit of the U-shaped arm and slides toward the depth side of the slit. In a door guard that limits an opening angle, the U-shaped arm has a pair of U-shaped arms each having a groove formed in a central portion of an arm width on a front surface and a central portion of an arm width on a rear surface of the U-shaped arm. The character-shaped recessed portion is engraved, and the recessed holes into which the cushioning material can be fitted are provided at the outer side portions on both sides near the required hinges. The cushioning material is formed in a C-shaped section and a C-shaped section. The inner end of the is fitted into the pair of U-shaped recessed portions, and the inner end of the is fitted into the recessed hole by having an inward projection at a location corresponding to the recessed hole. Door guard.