JP2011132758A - Finger pinch accident preventive device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispose the entire part of a finger pinch accident prevention device on a door frame side without installing the device on a door. <P>SOLUTION: This finger pinch accident prevention device includes a substrate 10 fixedly attachable to a door frame 4, a rotating arm 15 which is pivotally supported on a slit-like guide groove 11 formed in one side surface of the substrate 10 so that the rear end thereof is positioned therein and which comprises, at the distal end, a contact 18 brought into contact with the inner wall surface 1a of a door 1 in a crossing state, a damper spring 21 for pushing back the rotating arm 15 in the distal end direction, and a return spring 27 for pressing the rotating arm 15 to the initial position where the rotating arm is pressed against the door 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a finger-filling accident prevention device, and more particularly to a finger-filling accident prevention device provided on a door frame for a door of a building such as a high-rise apartment where wind pressure is easily applied.

  Patent Document 1 discloses a “door impact protector or device thereof”. The door impact protection device described in Patent Document 1 is a “finger-filling accident prevention device” as in the present invention. Basically, the side-end opening is fixed to the inner wall surface of the free end portion of the door. 22, an annular contact piece 3 rotatably mounted in the case storage chamber 21, and a stopper 4 fixed to the inner surface of the edge of the vertical frame of the door frame. In the case of closing at the speed state, the annular contact piece 3 does not protrude from the side end opening 22 while sliding on the rail-like bottom inclined body provided in the housing chamber 21 of the case, but against the door Is closed in a state faster than the normal speed, the annular contact piece 3 protrudes from the side end opening 22 while sliding the bottom inclined body vigorously by centrifugal force, and the door frame thick stopper 4 (The reference numerals are those cited in the publication).

  In the invention described in Patent Document 1, for example, when a strong wind continuously hits a door of a high-rise apartment, when the door is closed at a speed higher than a normal speed, Since it protrudes from the side end opening vigorously by force and collides with the stopper, it is possible to expect an effect that a “finger-filling accident” can be prevented by a gap corresponding to at least the thickness of the stopper.

  However, the problems of Patent Document 1 are as follows. (A) As long as all the conditions such as closing the door at a speed higher than the normal speed, the ring-contacting piece jumping out to a sufficient position, and colliding with the stopper before the ring-contacting piece does not return are satisfied. Cannot prevent stuffing accidents. (B) The door impact protector excluding the stopper, for example, is attached to the outer wall surface of the free end of the door using a plurality of fixing tools. Doing it makes the general consumer feel uncomfortable. Moreover, since the act of attaching an object to the wall surface of the door is not generally performed, it is not preferred for reasons of appearance. (C) Regardless of whether the strong wind is continuously applied to the door, the door cannot be closed faster than the normal speed with sufficient care. Therefore, you must always be careful when closing the door.

JP-A-7-286473

  The intended object of the present invention is that it is not necessary to construct the door, and the entire apparatus can be deployed on the door frame side. The second purpose is to temporarily stop the door when a pressure higher than a predetermined pressure is applied to the device through the door when the door is closed, thereby alerting the person who closes the door. . The third object is to reduce the number of components to be configured and to easily combine the components. In addition, it is to incorporate the spring member in a rational place.

  The finger jamming accident prevention apparatus of the present invention is pivotally supported so that a rear end portion thereof is positioned in a board that can be fixedly attached to the door frame side and a notch-shaped guide groove formed on one side surface of the board. In addition, a rotating arm having a contact that contacts the inner wall surface of the door in a crossed state at the tip, a damper spring that pushes the rotating arm back toward the tip, and a rod state that pushes the rotating arm against the door And a return spring that biases to an initial position, and when the pressure of the damper spring is lower than a predetermined pressure at which the door closes in a normal state, the door closes while the rotary arm hits the inner wall surface of the door When the damper spring is higher than a predetermined pressure at which the door closes vigorously, the damper spring is actuated to temporarily lock the rotating arm on the wall surface of the notch-shaped guide groove of the substrate. Characterized in that it is supported by the state.

  In the above configuration, the rotating arm is pivotally supported on a support shaft whose base end is located in the notch-shaped guide groove, and a short rod-shaped support arm that supports the inner end of the damper spring, and the support arm. And a locking contact formed at the back of the notch-shaped guide groove at the rear end and removable engagement protrusion. And a long arm-like sliding arm.

  As in Patent Document 1, it is not necessary to attach the device to the free end of the door. That is, since the support shaft, the rotary arm, and the spring member are attached to the substrate that can be fixedly attached to the door frame side, all of the devices are arranged at appropriate locations on the door frame side. Therefore, it is not necessary to apply the work to the door, and the device cannot be seen from the outside like a door closer.

  Further, since the rotating door is temporarily stopped based on the wind pressure applied to the outer wall surface of the door, in other words, the predetermined pressure applied to the damper spring of the apparatus, it is not always necessary to close the door carefully. In addition, when a pressure higher than a predetermined pressure is applied to the device through the door when the door is closed, the door is temporarily stopped by this device, which alerts the person who closes the door, The effect of preventing "accident" can be expected.

  Furthermore, it is possible to reduce the number of components to be configured and to easily combine the components. In addition, the spring member can be incorporated at a reasonable location.

1 to 10 are schematic explanatory views showing an embodiment of the present invention.
Schematic explanatory drawing showing the implementation environment (as viewed from the inner wall surface of the door). The schematic explanatory drawing of the principal part seen from the inner wall face of the door. BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows an example of the implementation environment from planar view (a door moves to the close direction). The schematic explanatory drawing of the principal part (state which combined each member). Schematic explanatory drawing of the principal part (disassembled perspective view of each member). The schematic explanatory drawing of the principal part (a rotation arm, a spring). Schematic explanatory drawing of the principal part (board | substrate). Schematic explanatory drawing in the case of normal door closing. Schematic explanatory drawing when a high pressure is applied to the device when the door is closed. FIG. 10 is a schematic explanatory diagram when pressure is attenuated in FIG. 9.

  An embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 is an explanatory view of the environment when an opening door (hereinafter referred to as “door”) 1 is viewed from inside a room. Therefore, 1a is an inner wall surface of the door 1, 2 is a thumb turn rotatably attached to the free end portion of the inner wall surface 1a via the inner mounting seat 3, 4 may constitute a door frame, and 4a may constitute a door frame. 4b is a vertical frame on the free end side of the door 1 constituting the door frame.

  As apparent from FIGS. 1 and 2, the finger-filling accident prevention apparatus X of the present invention is directly or directly attached to the vertical frame 4b on the free end side of the door 1 through fixing means such as a fixing tool, an adhesive layer, and a bracket. Deployed indirectly. In the present embodiment, the finger filling accident prevention device X is indirectly fixed to the vertical frame 4b via, for example, an L-shaped bracket 5, a plurality of fasteners 6, and a double-sided adhesive tape 7, respectively.

  Now, reference numeral 10 denotes a substrate that can be fixedly attached to the horizontal frame 4a or the vertical frame 4b on the door frame 4. The substrate 10 is formed with a notch-shaped guide groove 11 on the upper surface of one side, for example, with reference to FIG. have. This notch-shaped guide groove 11 is formed in a required amount from the intersection part a of the vertical side surface 10a facing the inner wall surface 1a of the door 1 and the vertical side surface 10b on the far side intersecting the vertical side surface toward the intersection point b on the diagonal line. The wide concave guide groove 11a and the lock groove 11b formed in a fingertip shape toward the vertical side surface 10c opposite to the vertical side surface 10a so that the notch end communicates with the wide concave guide groove 11a. It consists of.

  A slightly arcuate or inclined wall surface of the wide concave guide groove 11a perpendicular to the unnumbered wide bottom surface (slide surface) forming the wide concave guide groove 11a, or one of the wall surfaces forming the lock groove 11b. The side surface has a stopper function for stopping the rotating arm at a predetermined angular position. In the present embodiment, as shown in FIG. 3, the rotating arm 15 is configured so that the engaging projection 19 positioned at the back of the support shaft 12 hits one side surface 11 c of the lock groove 11 b, so that the rotating door 1 is in standby mode. Inclined slightly to the right with respect to the inner wall surface 1a.

  Reference numeral 12 denotes a support shaft provided in a vertical state at a substantially central portion of the wide bottom surface of the wide concave guide groove 11a. The support shaft 12 is a male screw having a flange at the upper end, for example, and is a female screw formed on the wide bottom surface. Screwed into.

  Next, 15 is pivotally supported via the support shaft 12 so that the rear end portion thereof is positioned in the notch-shaped guide groove 11 of the substrate 10, and the front end portion of the substrate 10 intersects the inner wall surface 1 a of the door 1. In the present embodiment, the base end portion 16a is pivotally supported by the support shaft 12 positioned in the notch-shaped guide groove 11 and the inner end portion 21a of the damper spring 21 is provided with a single or a plurality of rotary arms having contact contacts. A short saddle-shaped support arm 16 to be supported and a contact 18 which is fitted to the support arm 16 so as to cooperate with the support arm 16 and which can be rotated at the front end portion, and a notch-shaped guide groove at the rear end portion 17a. 11 is formed of a lock groove 11b formed in the inner part of 11 and an elongate sliding arm 17 having an engaging projection 19 that can be engaged and disengaged.

  By the way, the shaft hole 22 through which the above-described support shaft 12 passes is formed in the base end portion 16a of the short rod-shaped support arm 16 of the present embodiment, while the base end from the tip end surface is formed on the free end side. A hole having a predetermined length is formed toward the portion 16 a, and the hole having the predetermined length serves as a spring support portion 23 that houses and supports the inner end portion 21 a of the damper spring 21. The contact 18 is a roller that is rotatably provided via an unnumbered shaft. Further, the engagement protrusion 19 is an engagement pin fixed in a suspended state to a rear end small protrusion-like portion of the upper wall of the long-sliding sliding arm 17 formed in a downward groove shape. Further, in the present embodiment, a long hole 24 having a predetermined length is formed in the longitudinal direction on the rear end side of the upper wall of the elongate sliding arm 17, and A spring end support portion 25 that receives the outer end portion 21 b of the damper spring 21 is provided inside the distal end portion.

  Next, the finger filling accident prevention apparatus X includes a plurality of spring members. One of them is a damper spring 21 that pushes back the long elongate sliding arm 17 constituting the rotary arm 15 in the direction of the distal end, and the outer end 21b of this damper spring is the same as that of the long elongate sliding arm 17 as described above. The inner end portion 21 a is accommodated in the spring support portion 23 of the short hook-shaped support arm 16 in a state where it abuts on the spring end support portion 25.

  The other is a return spring 27 that urges the rotary arm 15 to the initial position where the rotary arm 15 protrudes from the inner wall surface 1a of the door 1 and is in a bar state. In the state of being wound around 12, the elongate sliding arm 17 is urged. In other words, one end portion 27 a of the return spring 27 is in contact with the inclined surface of the substrate 10, and the other end portion 27 b is in contact with the inner wall surface of the elongated sliding arm 17 as appropriate.

  In the above configuration, when the damper spring 21 is higher than a predetermined pressure at which the door 1 closes vigorously, the elongated sliding arm 17 constituting the rotary arm 15 moves backward against the spring force of the damper spring 21. Then, the engagement protrusion 19 provided at the rear end portion enters the lock groove 11b of the notch-shaped guide groove 11, and is temporarily locked in the locked state by the wall surface of the lock groove 11b. Therefore, the rotating arm 15 does not immediately rotate in the direction in which the door 1 is closed.

  FIG. 8 is a schematic explanatory diagram when the door is normally closed. The normal door closing case will be described with reference to FIGS. 3 and 8. When the pressure is below a certain level, the damper spring 21 does not operate, and the long saddle-like sliding arm 17 of the rotating arm 15 is the short saddle-like supporting arm 16. Rotate in the direction indicated by the arrow. In addition, when the pressure of the damper spring 21 is lower than a predetermined pressure at which the door 1 is closed in a normal state, the rotary arm 15 is displaced to a position where the door is closed while hitting the inner wall surface 1a of the door 1.

  As shown in FIG. 3, when the inner wall surface of the door 1 hits the contact 18, the return spring 18 and the notch-shaped guide groove 11 are arranged so that the contact 18 slides inwardly (inside the room) along the inner wall 1 a. The stopper surface and the like are appropriately provided. Further, as described above, FIG. 3 shows that when the rotary arm 15 is in the standby state, it is slightly inclined inward (inside the room) rather than at a right angle to the inner wall surface 1a of the door 1.

  On the other hand, FIG. 9 is a schematic explanatory diagram when a pressure higher than a predetermined pressure is applied to the apparatus when the door is closed. If a natural wind pressure (strong wind) is applied on the outer wall surface of the door 1 of a high-rise apartment building that is constantly applied to the device, of course, if the door is closed, it will naturally cause a finger jam. The prevention device X is also added via the inner wall surface 1 a of the door 1. Therefore, when the door is closed, when strong wind pressurizes the door 1, in other words, when the damper spring 21 is higher than a predetermined pressure at which the door 1 closes vigorously, the damper spring 21 is operated and the rotating arm 15 is temporarily supported by the wall surface of the notch-shaped guide groove 11 of the substrate 10 (in this embodiment, the wall surface of the lock groove 11b) in a locked state. When the pressure is attenuated, the locked state is released, and the contact is displaced by the inner wall surface of the door as shown in FIG.

  In the present embodiment, the rotary arm 15 is supported by a support shaft 12 whose base end portion 16 a is positioned in the notch-shaped guide groove 11, and a short hook-shaped support arm that supports the inner end portion 21 a of the damper spring 21. 16 and a contact groove 18 which is fitted so as to cooperate with this support arm and which has a rotatable contactor 18 at the front end portion, and is formed in the rear portion of the notch-shaped guide groove 11 at the rear end portion. 11b and an elongate sliding arm 17 having an engaging projection 19 that can be engaged and disengaged.

  However, the design of the structure of the elongate sliding arm is appropriately changed, and the damper spring 21 is formed in, for example, a spring end storage chamber formed at the rear end of the elongate sliding arm and the notched guide groove 11 of the substrate 10. The rotating arm 15 can also be made into one member by disposing it between the arcuate stopper surface.

  Further, in this embodiment, the support shaft 12 is provided with an anti-separation preventing function so that, for example, the flange-like sliding arm 17 is prevented from coming off from the short rod-like support arm 16 with its flange. By forming the engaging portion and the engaged portion on 16 and 17, it is possible to configure so that the long rod-shaped sliding arm 17 does not come off from the short rod-shaped support arm 16.

  Further, the return spring 27 urges the rotating arm to the initial position where the rotating arm is in a support rod state. The spring force, the position at which the support rod hits the inner wall surface 1 a of the door 1, etc. It is set as appropriate in consideration.

  Used in lock and joinery industries.

X ... Finger jamming prevention device, 1 ... Door, 1a ... Inner wall surface of door 1, 4 ... Door frame, 4b ... Vertical frame on free end side, 5 ... Bracket, 10 ... Substrate, 11 ... Notch-shaped guide groove, 11a: Wide concave guide groove, 11b: Lock groove, 12: Support shaft, 15: Rotating arm, 16 ... Short rod-shaped support arm, 16a ... Base end portion, 17 ... Long rod-shaped sliding arm, 18 ... Contact Child, 19 ... engaging protrusion, 21 ... damper spring, 21a ... inner end, 22 ... shaft hole, 23 ... spring support, 25 ... spring end support, 27 ... return spring.

Claims (4)

A board that can be fixedly attached to the door frame side, and a notch-shaped guide groove formed on one side of the board so that its rear end portion is pivotally supported, and at the front end portion on the inner wall surface of the door A rotating arm having a contact that contacts the crossing state, a damper spring that pushes the rotating arm back toward the tip, and a return spring that biases the rotating arm against the door to an initial position that is in a bar state; When the pressure of the damper spring is lower than a predetermined pressure at which the door closes in a normal state, the rotary arm is displaced to a position where the door closes while hitting the inner wall surface of the door, while the damper spring However, when the pressure is higher than a predetermined pressure at which the door closes vigorously, the damper spring is actuated so that the rotating arm is temporarily supported on the wall surface of the notch-shaped guide groove of the substrate. That finger-justified accident prevention device. In Claim 1, when the damper spring is higher than a predetermined pressure at which the door closes vigorously, the elongate sliding arm constituting the rotary arm moves backward against the spring force of the damper spring, and the rear end A finger jamming prevention device characterized in that an engaging projection provided on the portion temporarily engages with the wall surface of the lock groove of the notch guide groove in a locked state. The rotary arm according to claim 1, wherein a base end portion of the rotary arm is pivotally supported by a support shaft positioned in the notch-shaped guide groove, and a short rod-shaped support arm that supports the inner end portion of the damper spring, and the support arm. Fitting so as to co-operate with the arm, and has a contactor that can rotate at the front end portion, while the rear end portion can be engaged with and disengaged from a lock groove formed at the back of the notched guide groove. A finger jamming accident prevention device comprising an elongate sliding arm having a protrusion. The damper spring according to claim 1, wherein an inner end portion of the damper spring is supported by a spring accommodating portion formed at a free end portion of the support arm, and an outer end portion protruding from the spring accommodating portion has an elongated shape. The return arm is supported by the spring end support portion of the sliding arm, and the return spring biases the long arm-shaped sliding arm with its central portion wound around the support shaft. Finger-tight accident prevention device.

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