JPH0729271U - Door closer - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Even if the sliding guide member violently collides with the receiving piece, the receiving piece does not jump out of the guide rail. [Structure] A door closer body 4 housed in either the door 1 or a recess formed in the door upper member.
The guide rail 10 accommodated in the other recess corresponding to the mounting position of the door closer body 4 and the guide rail 10 can be horizontally rotated in the gap between the upper end surface of the door 1 and the lower surface of the door upper member. An arm 7 having one end attached to the rotary shaft 6 of the door closer body 4 and a slide guide member guided to the guide rail 10 at the other end, and the door 1
Stopper member that is fixedly installed in the guide rail 10 so as to stop at a predetermined open position and that has a receiving piece 19 that collides with the sliding guide member, and the receiving piece 19 is a sliding guide member. A cover plate 20 for the receiving piece fixedly provided on the guide rail so as not to jump out of the guide rail 10 due to a collision force.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door closer that automatically tightens doors provided at doorways and opening / closing doors.

[0002]

[Prior art]

 Conventionally, there has been proposed a door closer in which a door closer body and a guide rail are installed in a storage recess formed in the door or an upper member of the door so as not to deteriorate the appearance of the door and its surroundings.

The basic structure of this type of door closer is, for example, as disclosed in Japanese Utility Model Laid-Open No. 3-34470, either a recess formed in the upper end surface of the door or the lower surface of the upper member of the door. The door closer body to be housed in one side, the channel-shaped guide rail to be housed in the other recess corresponding to the mounting position of the door closer body, and the gap between the upper end surface of the door and the lower surface of the door upper member. An arm having one end attached to the rotation shaft of the door closer body and a slide guide member guided to the guide groove of the guide rail described above at the other end so that the arm can be horizontally rotated. A stopper member with an elastic piece, which is fixedly mounted on the guide rail so as to stop the door at a predetermined open position and collides with the sliding guide member.

However, the door closer having the above structure has the following problems to be solved. When the door is opened vigorously, the slider sliding inside the guide rail directly collides with the stopper piece as it is, which causes the elastic piece provided on the stopper piece to deform or the elastic piece or the stopper piece itself from the guide rail. It may come off. Since the slider simply slides in the guide groove of the guide rail as it is, the guide rail does not slide smoothly. Since the means for stopping the door at a predetermined opening angle and the stopper piece are separate bodies, assembly is troublesome.

[0005]

[Problems to be solved by the device]

 In view of the above-described conventional drawbacks, the present invention prevents the sliding guide member moving in the guide rail from violently colliding with the receiving piece of the stocker piece without the receiving piece popping out of the guide rail. Further, the sliding guide member can smoothly slide in the guide rail, and further, the receiving piece is not deformed even if the impact is repeated, and in addition, the door closer is easily assembled.

[0006]

[Means for Solving the Problems]

 The door closer of the present invention includes a door closer body that is housed in one of the recesses formed in the upper end surface of the door or the lower surface of the door upper member. One end is attached to the rotation axis of the door closer body so that it can be horizontally rotated in the gap between the channel-shaped guide rail housed in the other recess and the upper end surface of the door and the lower surface of the door upper member. And an arm provided with a sliding guide member guided in the guide groove of the guide rail at the other end, and fixedly mounted on the guide rail so that the door can be stopped at a predetermined open position. A stopper member having a receiving piece that collides with the sliding guide member, and a guide rail for preventing the receiving piece from jumping out of the guide rail due to the collision force of the sliding guide member. Comprising a receiving piece lid plate provided on Joteki.

[0007]

[Action]

 When the door 1 is opened, the rotating piece of the sliding guide member slides in one direction while rotating in the guide groove of the guide rail.

Therefore, when the door is continuously opened, the rotating piece slides along the inner wall surface of the upper wall of the guide rail, and eventually the upper surface of the tip of the holding piece of the stopper member and the inner wall surface of the guide rail described above. In between, the fixed shafts are respectively inserted into the tip end portions of the holding pieces. Then, when the fixed shaft pushes the door further into the predetermined open position at the moment when the fixed shaft comes into contact with the holding part of the holding piece, the holding piece is expanded and displaced by the pressing force of the fixed shaft, whereby the fixed shaft is moved. It passes through the holding part and collides with the tip of the receiving piece.

When the fixed shaft hits the receiving piece, the impact force is dispersed and the receiving piece tries to jump out of the guide rail, but is blocked by the lid. Thus, as soon as the fixed shaft passes through the holding part and strikes against the receiving piece, the holding piece returns to its original state, whereby the door stops at the predetermined opening angle.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

In the embodiment shown in FIGS. 1 to 8, first, 1 is a door provided in an entrance or an opening / closing door, and 2 is an upper frame of a fitting, which is provided above the door 1, above a door such as a railing. It is a member. The door upper member 2 is formed integrally with the vertical frame 3 and forms an entrance and an exit window. The door 1 is rotatably attached to the door upper member 2 or the vertical frame 3 via a hinge, a pivot or the like.

Next, 4 is the upper end surface of the door 1 or the lower surface of the door upper member 2, in the present embodiment, the first fastener 5 in the recess formed in the appropriate position of the upper end surface of the door 1. It is a door closer body that is fixedly stored via. The door closer body 4 is provided with a required hydraulic mechanism inside, and a rotary shaft 6 connected to the hydraulic mechanism projects from the upper surface of the door closer body 4 as shown in FIG.

Reference numeral 7 denotes a relatively thin long plate-like arm (link) having one end attached to a rotary shaft 6 having a polygonal cross section. This arm 7 is horizontally positioned in the gap between the upper end surface of the door 1 and the lower surface of the door upper member 2, and a guide groove of a guide rail described later is provided on the upper surface of the other end of the arm 7 via a protruding fixed shaft 8. An annular rotating piece 9 that slides while rotating is provided. In this embodiment, the rotating piece 9 and the fixed shaft 8 constitute a sliding guide member, and the rotating piece 9 slides along the inner wall surface of the upper wall of the guide rail 10.

Reference numeral 10 denotes either the lower surface of the door upper member 2 or the upper end surface of the door 1, and this embodiment is formed at an appropriate position on the lower surface of the door upper member 2 corresponding to the mounting position of the door closer body 4. It is a channel-shaped guide rail having a guide groove 10a fixedly accommodated in the recess via the second fixing tool 5A. As shown in FIG. 6, a plurality of adjustment holes 11 are formed in the upper wall 10b of the guide rail 10 on one end side at predetermined intervals.

Reference numeral 12 is an end face L-shaped adjusting plate fixedly installed in a groove on one end side of the guide rail 10. The adjusting plate 12 is a through hole corresponding to at least one of the adjusting holes 11 described above. The horizontal portion 12a has a horizontal portion 12a, and the vertical portion 12b has a screw hole and is continuously provided in one end of the horizontal portion 12a in the intersecting direction. The adjusting plate 12 is fixed in the guide rail 10 via a first fixing member 14 inserted into an arbitrary adjusting hole 11 and a through hole 13 so that the position can be adjusted.

Reference numeral 15 denotes a stopper member which is internally provided in the groove of the guide rail 10 and fixedly connected to the vertical portion 12b of the adjusting plate 12 via the second fixing tool 16. The stopper member 15 is provided apart from the inner wall surface of the upper wall 10b of the guide rail 10 so as to be able to receive the moving rotating piece 9, and has an open leg shape capable of outward expansion displacement. The elastic holding piece 17 and the receiving piece 19 made of a hard synthetic resin fixedly provided in the crotch portion 18 of the holding piece 17, and the receiving piece 19 is formed in a stepped shape. .

As shown in FIG. 3, the tip 17a of the holding piece 17 is widened outward, and the parts (holding portions) 17b corresponding to the knees are folded inwardly in a V shape. It's tuned. The tip of the receiving piece 19 is formed in a bay shape so as to match the curvature of the outer peripheral surface of the fixed shaft 8 with which it abuts. Further, the outer wall surfaces (lower surfaces when referring to FIG. 2) of the holding piece 17 and the receiving piece 19 are substantially flush with the lower surface 10c of the vertical wall of the guide rail 10.

Reference numeral 20 indicates that when the fixed shaft 8 enters from the tip portion 17a of the holding piece 17 and passes through the holding portion 17b and collides with the tip portion of the receiving piece 19, the receiving piece 19 moves outward from the guide rail 10. It is a cover plate that prevents it from popping out. In the present embodiment, the cover plate 20 is formed in a channel shape so as to be externally fitted to the guide rail 10 and directly covers at least the outer wall surface 19a of the receiving piece 19. The tip of the cover plate 20 is formed in a bay shape so as to make surface contact with the outer peripheral surface of the fixed shaft 8. The lid plate 20 is appropriately fixed to the guide rail 10 with a fastener 21. In this embodiment, the receiving piece 19 is directly fixed to the guide rail 10 via a fixing tool 22.

In the above structure, when the door 1 is opened as shown in FIG. 1, the rotating piece 9 of the sliding guide member slides in one direction while rotating in the guide groove 10a of the guide rail 10. As a result, the arm 7 rotates in the gap between the upper end surface of the door 1 and the lower surface of the door upper member 2, and the rotation shaft 6 also rotates due to the rotation of the arm 7, thereby gradually applying hydraulic pressure to the hydraulic mechanism inside the door closer body 4. To store.

Therefore, when the door 1 is continuously opened, the rotating piece 9 slides along the inner wall surface of the upper wall 10b of the guide rail 10 and then the stopper member 15 is held by the rotating piece 9 as shown in FIGS. 7 and 8. The fixed shaft 8 is inserted into the tip portion 17a of the holding piece 17 between the upper surface of the tip portion 17a of the piece 17 and the inner wall surface of the guide rail 10. Then, when the fixed shaft 8 comes into contact with the holding portion 17b of the holding piece 17 and pushes the door 1 further to the predetermined open position, the holding piece 17 resists the spring force due to the pressing force of the fixed shaft 8. Then, the fixed shaft 8 passes through the holding portion 17b and collides with the tip end portion of the receiving piece 19.

Then, when the fixed shaft 8 strikes against the receiving piece 19, the impact force is mechanically dispersed, and the receiving piece 19 tries to jump out of the guide rail 10, but the lid 20 (depending on the embodiment). Are blocked by the lid 20 and the fasteners 22). Thus, as soon as the fixed shaft 8 passes through the holding portion 17b and strikes against the receiving piece 19, the holding piece 17 returns to its original state, whereby the door 1 is stopped at a predetermined opening angle.

When the door 1 is closed, the door is first pushed in the direction to close the door, and the fixed shaft 8 is released from the holding portion 17b of the holding piece 17. Then, the hydraulic mechanism in the door closer body 4 rotates the rotating shaft 6. As a result, the arm 7 that cooperates with the rotating shaft 6 also rotates, and the door 1 automatically closes.

In the embodiment of the present invention, the movement of the receiving piece 19 of the stopper member is restricted by the lid 20, and the receiving piece 19 is directly inserted into the guide rail 10 via the fixing tool 22. However, if the receiving piece 19 is fixed to the guide rail using a fixing means such as a fixing tool 22 or an adhesive, the lid 20 is not always necessary.

[0024]

[Effect of device]

 As is clear from the above description, the present invention has the following effects. (1) Since the cover plate for the receiving piece that blocks the movement of the receiving piece as the stopper member is fixedly provided on the guide rail, or because the receiving piece is fixed in the guide rail through the fixing means, the sliding guide Even if the member collides with the receiving piece vigorously, the receiving piece does not jump out of the guide rail. (2) In the case of an embodiment in which the sliding guide member is composed of a fixed shaft projectingly provided on one side surface of the other end of the arm and a rotating piece rotatably provided on the fixed shaft, The rotating piece slides smoothly while rotating. (3) The stopper member is fixedly attached to the adjusting plate, and is composed of an open leg-shaped elastically holding piece that can be expanded and displaced, and a receiving piece that is fixedly provided in the crotch portion of the holding piece. In the case of the embodiment, since the sliding guide member is brought into sliding contact with the holding portion of the holding piece once before the predetermined opening position, the opening force of the door can be slightly weakened. Moreover, the position of the stocher member can be adjusted and the assembly is easy. (4) In the case of the embodiment in which the receiving piece is made of a hard synthetic resin material, the receiving piece is not deformed and therefore has excellent durability.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing an example of a usage state of the present invention.

FIG. 2 is a schematic explanatory view from the front side of the present invention.

FIG. 3 is an explanatory view from the bottom showing the main part of the present invention.

FIG. 4 is a schematic explanatory view of a main part of the present invention.

FIG. 5 is an explanatory view of a main part of the present invention viewed from the front.

FIG. 6 is an exploded perspective view of a main part of the present invention.

FIG. 7 is a schematic cross-sectional explanatory view of the operating state of the main part of the present invention viewed from the bottom side.

FIG. 8 is a schematic cross-sectional explanatory view of the operating state of the main part of the present invention viewed from the front side.

[Explanation of symbols]

 1 ... Door, 2 ... Door upper member, 4 ... Door closer, 6 ... Rotating shaft, 7 ... Arm, 8 ... Rotating shaft, 9 ... Rotating piece, 10 ... Guide rail, 12 ... Adjusting plate.

Claims (5)

[Scope of utility model registration request] 1. A door closer body that is housed in one of the recesses formed in the upper end surface of the door or the lower surface of the door upper member, and one of the other recesses corresponding to the mounting position of the door closer body. A channel-shaped guide rail housed in a place, and one end of which is attached to the rotating shaft of the door closer body so that it can be horizontally rotated in the gap between the upper end surface of the door and the lower surface of the door upper member. An arm provided with a sliding guide member guided in the guide groove of the guide rail, and fixedly mounted on the guide rail so that the door can be stopped at a predetermined open position, and the sliding A stopper member having a receiving piece that collides with the guide member, and a fixed member fixed to the guide rail so that the receiving piece does not jump out of the guide rail due to the collision force of the sliding guide member. A door closer consisting of a cover plate for the receiving piece. 2. The sliding guide member according to claim 1,
A door closer comprising: a fixed shaft projecting from one side surface of the other end of the arm; and a rotating piece rotatably provided on the fixed shaft and sliding in a guide rail. 3. A door closer body that is housed in one of the recesses formed in the upper end surface of the door or the lower surface of the door upper member, and one of the other recesses corresponding to the mounting position of the door closer body. A channel-shaped guide rail housed in a place, and one end of which is attached to the rotating shaft of the door closer body so that it can be horizontally rotated in the gap between the upper end surface of the door and the lower surface of the door upper member. An arm provided with a sliding guide member guided in the guide groove of the guide rail, and fixedly mounted on the guide rail so that the door can be stopped at a predetermined open position, and the sliding A stopper member having a receiving piece that collides with the guide member, and the receiving piece is fixed in the guide rail so that the receiving piece does not jump out of the guide rail due to the collision force of the sliding guide member. Door closer consisting of fixing means. 4. A stopper member fixedly mounted on an adjusting plate provided in the guide rail so as to be positionally adjustable, and an open leg-shaped resilient holding piece capable of outward expansion displacement. A door closer, comprising a receiving piece fixedly provided in the crotch portion of the holding piece, the receiving piece being directly covered by the cover plate. 5. The door closer according to claim 3, wherein the receiving piece is made of a hard synthetic resin material.