JP4876139B2 - Push latch device - Google Patents

Description

  The present invention has a cylindrical case main body and a slide member that is movably mounted inside and has a protrusion that can protrude from the case main body, and relatively pushes the protrusion of the slide member into the case main body. Thus, the slide member is alternately arranged and held at the projecting position and the storage position with respect to the case body, and can be opened / closed only by lightly pushing the open / close door or the like from the outside. Is.

  Push latch devices (or magnet catchers) are widely used in parts that store video decks, furniture doors such as shoe boxes, ashtrays in cars, and lids for small items.

  For example, a magnet catcher in which a sliding body with a permanent magnet attached to the case body is fitted by urging and urgingly slidably moving in the axial direction by ridges, and the sliding body is moved in and out by pressing the tip of the sliding body. Is well known (see, for example, Patent Document 1).

  In the magnet catcher disclosed in Patent Document 1, it is difficult to adjust the front end position of the sliding body after being attached to the attachment, and if the adjustment is to be made, the entire magnet catcher is attached to the attachment. It is necessary to loosen or remove the mounting screws attached to the. In particular, such a magnet catcher is often attached to a narrow place, and it is difficult to loosen the attachment screw after being attached to the attachment object, so that the work efficiency is poor.

  In order to solve this, a push latch device that can adjust the front end position of a movable body (sliding body) has been proposed (see, for example, Patent Document 2).

  A push latch device disclosed in Patent Document 2 includes a rectangular tube-shaped case body made of an elastically deformable resin material, a movable body that is fitted and inserted into the case body 1 and is slidable relative to the case body. It has. The movable body to be slid is either one of a position projecting greatly from the front end portion of the case body (projecting position) and a position projecting only the front end portion of the movable body from the front end portion of the case body (storage position). Placed and held in position.

  Further, the front end of the movable body is provided with a female screw along its movable direction, and a screw member is screwed to the female screw, and by rotating the screw member, The front end position is moved by an amount corresponding to the screw pitch of the female screw.

Japanese Utility Model Publication No. 63-91675 JP 2008-121350 A

  However, the above-described push latch device disclosed in Patent Document 2 can only finely adjust the front end position of the movable body (that is, the allowance when retracted), avoids rubber for doors, and uses a slide hinge. There was a problem that it was not possible to cope with the uniformization of the clearance at the door end side.

  In addition, since the conventional push latch device (or magnet catcher) described above cannot adjust the moving distance when the movable body protrudes (ie, the allowance for release), adjustment of the space where the finger enters when the door is opened I can't. Therefore, there is a demand for a push latch device that can adjust a stock allowance at the time of release.

  Further, the above-described conventional push latch device (or magnet catcher) has a drawback that the distance between the magnet attached to the tip and the door cannot be adjusted.

  Furthermore, when used for the tip of the hinged door and the drawer, the conditions for separating the magnet and the door are different, so that the attractive force that automatically separates when the movable body protrudes changes. Therefore, there is a demand for a push latch device that can adjust the distance between the magnet attached to the tip and the door, that is, can adjust the attractive force of the magnet.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a push latch device that can adjust a take-out allowance at the time of pulling in, can adjust a take-out allowance at the time of release, and can adjust an attracting force by a magnet. .

  In order to solve the above problems, a push latch device according to the present invention has a cylindrical case body having an open end and a sealed end, and one end is swingable to the sealed end of the case body via a shaft. A guide pin that is supported and has a locking portion at the other end; a slide member that is mounted in the case body so as to be movable in the axial direction; and a tip member that can project from the open end of the case body; and the slide member. Biasing means for biasing the opening end of the case main body, and the slide member includes a slide portion main body formed with a guide groove for guiding the travel of the locking portion of the guide pin, and an elastically deformable connecting member. A cylindrical protrusion main body that is rotatably connected to the tip of the slide main body via a stopper, and a stopper member that is rotatably provided by screwing with a screw formed on the outer peripheral surface of the protrusion main body, Formed on the inner peripheral surface of the protruding body It is characterized in that a holding member for holding the connecting member rotatably provided screwed to a female screw that is.

  For example, it has a first locking means for making the stopper member non-rotatable when the slide member is in the protruding position.

  Further, for example, the first locking means is formed on the inner surface of the opening end in a concave-convex shape and on the end surface on the opening end side of the stopper member. The stopper member is prevented from rotating when the stopper member is engaged with the locking surface.

  Further, for example, it has a second locking means for making the holding member non-rotatable in a state where the lock by the first locking means is released.

  Further, for example, the second locking means includes an uneven fitting portion formed at the tip of the slide portion main body and an uneven end surface formed at the rear end of the holding member and fitable with the fitting portion. It consists of.

  Further, for example, a magnet mounting portion is provided at the tip of the projecting portion main body, a screw is engraved on the outer peripheral surface of the magnet mounting portion, and an outer layer tube material that is screwed to the screw on the outer peripheral surface is provided.

  According to the present invention, in the push latch device, the slide member includes a slide part body formed with a guide groove having a shape along the outer edge of the heart-shaped guide protrusion, and the slide part via the elastically deformable connecting member. A cylindrical protrusion main body connected to the tip of the main body, a stopper member rotatably provided by screwing on a screw formed on the outer peripheral surface of the protrusion main body, and an inner peripheral surface of the protrusion main body By having a holding member that is rotatably provided by screwing into the formed female screw and holding the connecting member, it is possible to adjust the withdrawal allowance at the time of pull-in and to adjust the allowance at the time of release Can do. For this reason, it is possible to avoid the door-to-door rubber or to make the door-side gap uniform when using a slide hinge. Moreover, a space for a finger to enter when the door is opened can be formed, and usability can be greatly improved.

  In addition, since the first locking means for making the stopper member non-rotatable in the state where the slide member is in the protruding position, the allowance for release can be easily adjusted.

  In addition, since the second locking means for making the holding member non-rotatable in a state where the lock by the first locking means is released, the allowance for pull-in can be easily adjusted.

  Furthermore, the magnet attached to the tip has a magnet mounting part at the tip of the projecting part main body, engraves a screw on the outer peripheral surface of the magnet mounting part, and provides an outer layer tube material screwed into the screw on the outer peripheral surface. The distance between the door and the door can be adjusted, that is, the attractive force by the magnet can be easily adjusted.

It is an exploded view showing the composition of push latch device 100 of an embodiment. 2 is a cross-sectional view taken along the lines XX and YY showing the configuration of the push latch device 100. FIG. It is sectional drawing which shows the front and back which adjusts the allowance at the time of drawing-in. It is a figure which shows the application example which adjusts the allowance at the time of drawing-in. It is sectional drawing which shows before and after adjusting the allowance at the time of release. It is a figure which shows the application example which adjusts the allowance at the time of release. It is a figure which shows the state which adjusted the distance between the magnet of the push latch apparatus 100, and a door. It is sectional drawing which shows the state of load absorption by a load absorption spring.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for implementing a push latch device according to the present invention will be described with reference to the drawings.

  FIG. 1 is an exploded view showing a configuration of a push latch device 100 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the lines XX and YY showing the configuration of the push latch device 100. 2A shows an XX sectional view parallel to the swing plane of the guide pin, and FIG. 2B shows a YY sectional view perpendicular to the XX sectional view.

  As shown in FIGS. 1 and 2, the push latch device 100 includes a case body 10, a fixing member 20, a slide member 30, a spring 40 as a first biasing means, a guide pin 50, a second And a spring 54 as a biasing means.

  The case body 10 is formed in a cylindrical shape having an open end and a sealing end, and the sealing end is sealed by a fixing member 20. An opening end of the case body 10 has a flange 11 whose opening is smaller than the inner diameter of the case body 10, and an engaging surface 11 a formed in an uneven shape on the inner surface of the flange 11.

  The fixing member 20 includes an end portion 21 that seals the end portion of the case body 10 and holding portions 22 and 23 that hold the slide member 30. The end portion 21 is provided with a shaft hole for inserting the shaft 53 and a hole for mounting the spring 54 in a direction perpendicular to the shaft hole. A guide pin 50 is supported on the fixed member 20 by a shaft 53 so as to be swingable. A spring 54 is attached so as to be urged against the guide pin 50.

  The slide member 30 includes a slide body 31, a cylindrical projecting body 60 connected to the tip of the slide body 31 via a load absorbing spring 80 that is an elastically deformable connecting member, and the projecting body 60. A stopper member 65 that is screwed into a threaded portion 61 formed on the outer peripheral surface of the projection member 60 and a female screw formed on an inner peripheral surface of the projecting portion main body 60 is provided to be rotatable. And a spring holder (holding member) 70.

  The slide member 30 is mounted in the case body 10 so as to be movable in the axial direction, and is urged toward the opening end of the case body 10 by a spring 40 as a first urging means. Further, the tip of the projecting portion main body 60 is slightly exposed from the opening end of the case main body 10. This exposure length d is a stroke at the time of release.

  The slide member 30 is formed with guide grooves (31a, 31b) for the locking portion 51 of the guide pin 50 to travel. The guide grooves (31 a, 31 b) are formed so that the forward path 31 a corresponding to the process in which the protrusion main body 60 of the slide member 30 is pushed into the case main body 10 by the guide protrusion 32 and the protrusion main body 60 of the slide member 30 from the case main body 10. It is divided into a return path 31b corresponding to the protruding process. A step member 33 is provided at the outlet of the return path 31b to prevent the locking portion 51 of the guide pin 50 from entering. The step member 33 has a short side 33a at the same low position as the bottom surface of the return path 31b, and a long side 33b at a position higher than the short side 33a, that is, a position higher than the bottom surface of the forward path 31a. Thereby, a step is formed at the outlet of the return path 31b to prevent the locking portion 51 of the guide pin 50 from entering. Further, a convex portion 31c is provided between the end portions of the forward path 31a and the return path 31b. This convex part 31c should just have the height which can prevent that the latching | locking part 51 of the guide pin 50 passes directly. In the guide protrusion 32, hook portions 32a and 32b and a flat surface 32c are formed on the surface facing the convex portion 31c. The heights of the hook portions 32a and 32b are set to the minimum height at which the locking portion 51 can be received so that the locking portion 51 of the guide pin 50 can be locked by the flat surface 32c.

  Further, the projecting portion main body 60 of the slide member 30 has an end flange 34 on the connection side, and an uneven fitting portion 35 is formed on the end face of the end flange 34. The concave and convex fitting portion 35 is fitted with a corresponding concave and convex end surface 72 formed on the rear end surface of the spring holder 70 provided on the projecting portion main body 60, so that the spring holder 70 is used as a second locking means. Can be made non-rotatable.

  The spring 40 is a coiled spring for urging the slide member 30 to the open end of the case body 10 as first urging means, and is disposed inside the case body 10. One end of the spring 40 is in contact with the end 21 of the fixing member 20, and the other end is regulated by the end flange 34 of the slide body 31.

  One end of the guide pin 50 has a shaft hole 52 and is supported by the sealing end of the case body 10 via the shaft 53 so as to be swingable. The other end of the guide pin 50 runs in the guide groove (31a, 31b). Have The locking part 51 is formed in a short cylindrical shape.

  The spring 54 is a coiled spring for urging the engaging portion 51 of the guide pin 50 from the end position of the forward path 31a of the guide groove (31a, 31b) to the start end side of the return path 31b as second urging means. The fixing member 20 provided at the sealing end of the case body 10 is mounted in a direction perpendicular to the shaft 53. The spring 54 urges the engaging portion 51 of the guide pin 50 from the end position of the forward path 31a of the guide groove (31a, 31b) toward the start end side of the return path 31b with the shaft 53 as a fulcrum.

  The protrusion main body 60 has a hollow cylindrical shape and is attached to one end of the slide member 30 via a load absorbing spring 80 as a connecting member attached inside. A spring holder 70 is provided outside the load absorbing spring 80. Further, on the outer peripheral surface of the projecting portion main body 60, a screw portion 61 for screwing with the stopper member 65 and a screw portion 62 for screwing with a sleeve 63 as an outer layer tube material are formed.

  Further, a magnet mounting portion is provided at the tip of the protruding portion main body 60, and a columnar magnet 64 is attached to the magnet mounting portion. The magnet 64 holds the door or the like in a closed state by attracting a metal piece S provided on the panel P such as a door. Further, by turning the sleeve 63, it is possible to adjust the distance between the magnet attached to the tip and the door.

  The stopper member 65 is a ring-shaped member having an inner surface formed with a female screw for screwing with the screw portion 61. The end surface of the stopper member 65 located at the opening end of the case body 10 is an uneven end surface 65a having unevenness. The concave and convex end surface 65a is fitted to the corresponding concave and convex portions of the locking surface 11a formed on the inner surface of the flange 11 at the opening end of the case body 10, thereby making the stopper member 65 non-rotatable as a first locking means. can do.

  The spring holder 70 is mounted by being screwed into the protruding portion main body 60. The rear end surface of the spring holder 70 is an uneven end surface 72 having unevenness. This uneven end surface 72 is for fitting with the uneven fitting portion 35 on the end face of the end flange 34 of the slide body 31.

  Next, a method of adjusting the allowance when the push latch device 100 is retracted will be described with reference to FIG.

  FIG. 3 is a cross-sectional view showing before and after adjusting the allowance during pull-in. FIG. 3A shows a state before adjusting the withdrawal allowance at the time of pull-in. FIG. 3B shows a state after adjusting the withdrawal allowance at the time of pull-in.

  As shown in FIG. 3A, the spring holder 70 is screwed into the projecting portion main body 60, that is, the rear end of the spring holder 70, before adjusting the allowance when retracting. The rear end of the projecting portion main body 60 is substantially the same position. In this state, the withdrawal allowance at the time of pull-in is minimal.

  The adjustment of the withdrawal allowance at the time of pull-in is performed by pressing the tip of the protruding portion main body 60 a little while the tip of the protruding portion main body 60 protrudes from the case main body 10, and fitting between the stopper member 65 and the opening end of the case main body 10. When the protrusion main body 60 is turned to the position where it is out of alignment, the protrusion main body 60 is moved in the distal direction by an amount corresponding to the screw pitch. In this case, since the concavo-convex end face 72 formed on the rear end face of the spring holder 70 is fitted with the concavo-convex fitting part 35 on the end face of the end flange 34 of the slide part main body 31, the spring holder 70 cannot rotate. On the other hand, the protrusion main body 60 is rotatable. For this reason, the protrusion allowance can be adjusted by turning the protrusion main body 60.

  As shown in FIG. 3 (b), the spring holder 70 is in a state where it protrudes from the protruding portion main body 60 by a predetermined length L1 after adjusting the allowance at the time of retracting. In this state, the take-out allowance at the time of drawing is L1, and the length at which the tip of the projecting body 60 is exposed from the opening end of the case body 10 is D1 (D1 = d + L1). Here, d is a stroke at the time of release.

  FIG. 4 is a diagram showing an application example for adjusting the allowance for pulling. As shown in FIG. 4, a door panel P is provided on the housing N via a hinge M. A push latch device 100 is attached to the opening side of the housing N. Moreover, since the door stop rubber B is provided between the panel P and the housing | casing N, the clearance gap D1 is formed. In this way, when avoiding the door-to-door rubber B or using a slide hinge, it is possible to deal with the uniformity of the door-end side clearance by adjusting the allowance when the push latch device 100 is retracted.

  Next, a method for adjusting the allowance when the push latch device 100 is released will be described with reference to FIG.

  FIG. 5 is a cross-sectional view showing before and after adjusting the allowance at the time of release. FIG. 5A shows a state before adjusting the stock allowance at the time of release. FIG. 5B shows a state after adjusting the stock allowance at the time of release.

  As shown in FIG. 5 (a), before the release allowance at the time of release is adjusted, the stopper member 65 is screwed into the rear end of the protrusion main body 60, that is, after the stopper member 65. The end and the rear end of the projecting portion main body 60 are at substantially the same position. In this state, the allowance at the time of release is the maximum.

  The adjustment of the allowance at the time of release is performed in a state where the tip of the protruding portion main body 60 protrudes from the case main body 10, that is, the relationship between the concave and convex end surface 65 a formed in the concave and convex shape of the stopper member 65 and the opening end of the case main body 10. When the projecting portion main body 60 is turned to the position where the stop surface 11a is fitted, the projecting portion main body 60 is moved toward the rear end by an amount corresponding to the screw pitch. In this case, since the concavo-convex end surface 65a and the locking surface 11a are fitted, the stopper member 65 cannot rotate, and the protrusion main body 60 is rotatable. Therefore, the protrusion allowance at the time of release can be adjusted by turning the protrusion main body 60.

  As shown in FIG. 5 (b), after adjusting the allowance at the time of release, the protrusion main body 60 is in the case main body 10 by a predetermined length L2 with respect to the stopper member 65. is there. In this state, the release allowance at the time of release is shortened by L2, and the length that the tip of the protrusion main body 60 is exposed from the opening end of the case main body 10 is D2-L2.

  FIG. 6 is a diagram showing an application example for adjusting the stock allowance at the time of release. As shown in FIG. 6, a door panel P is provided on the housing N via a hinge M. A push latch device 100 is embedded in the opening side of the housing N. A gap D2 is necessary to form a space for a finger to enter when the door is opened. In such a case, a space for a finger to enter when the door is opened can be formed by adjusting the allowance at the time of release, and the usability can be greatly improved.

  FIG. 7 is a diagram illustrating a state in which the distance between the magnet of the push latch device 100 and the door is adjusted.

  As shown in FIG. 5A described above, in the open state, the movement of the slide member 30 is stopped by the stopper member 65 being caught inside the flange 11 at the opening end of the case body 10. At this time, the door and the magnet 64 may be separated by the inertial force of the protrusion main body 60 to further open the door, while the door may be held in that state to prevent danger. In order to cope with this, a function for adjusting the distance between the magnet 64 and the door is required.

  As shown in FIG. 7, when the sleeve 63 is rotated while holding the protrusion main body 60 when the protrusion main body 60 is in a position protruding from the case main body 10, the sleeve 63 protrudes from the tip surface of the magnet 64. It becomes like this. Accordingly, the distance between the magnet 64 and the panel P such as a door can be adjusted, that is, the attractive force by the magnet can be easily adjusted.

  Thus, by making the contact distance between the magnet 64 and the door adjustable, it can be used for various attachment targets. For example, when used for the tip of a hinged door and a drawer, the conditions for separating the magnet and the door are different, so that the attractive force that automatically separates when the projecting portion main body 60 projects changes. In this case, this can be dealt with by adjusting the distance between the magnet 64 and the door, etc., and adjusting the attractive force of the magnet. It can also be adapted to the conditions of joinery.

  FIG. 8 is a cross-sectional view showing a state of load absorption by the load absorption spring. As shown in FIG. 8, for example, if the door is forced to open without being pushed once in the closed state, the magnet 64 has a strong force to hold the door, so that the load on the guide pin 50 becomes large before leaving the door. As a result, the guide pin 50 may be damaged. For this purpose, a load absorbing spring 80 for absorbing the load is incorporated. When trying to force open, the guide pin 50 can be prevented from being damaged by absorbing an excessive load by deformation of the load absorbing spring 80.

  As described above, in the present embodiment, the push latch device 100 includes the case main body 10, the fixing member 20, the slide member 30, the spring 40 as the first urging means, the guide pin 50, and the second pin. And a spring 54 as urging means. The slide member 30 is formed on the slide body 31, a cylindrical projecting body 60 that is rotatably connected to the tip of the slide body 31 via a load absorbing spring 80, and an outer peripheral surface of the projecting body 60. A stopper member 65 that is rotatably provided by being screwed to the threaded portion 61, and a load absorbing spring 80 that is rotatably provided by being screwed to a female screw formed on the inner peripheral surface of the protrusion main body 60. And a spring holder 70 for holding.

  Thereby, it is possible to adjust the allowance at the time of pulling in and adjust the allowance at the time of release. For this reason, it is possible to avoid the door-to-door rubber or to make the door-side gap uniform when using a slide hinge. Moreover, a space for a finger to enter when the door is opened can be formed, and usability can be greatly improved.

  In addition, since the first locking means for making the stopper member non-rotatable in the state where the slide member 30 is in the projecting position, it is possible to easily adjust the allowance for release. In addition, since the second lock means that makes the spring holder 70 non-rotatable in a state in which the lock by the first lock means is released, it is possible to easily adjust the withdrawal allowance at the time of retraction.

  Furthermore, it is possible to adjust the distance between the magnet 64 attached to the tip of the projecting portion main body 60 and the door, that is, the attractive force by the magnet 64 can be easily adjusted.

  In the push latch device 100 described above, the engaging portion 51 of the guide pin 50 is urged from the end position of the forward path 31a of the guide groove (31a, 31b) to the start end side of the return path 31b as the second urging means. Although the thing provided with the spring 54 for this was demonstrated, it is not limited to this.

  Further, in the above-described push latch device 100, the first locking means and the second locking means are configured to be fitted on the concavo-convex surface, but the present invention is not limited to this. Other locking mechanisms may be used.

  The present invention relates to a push latch device in which a movable member is relatively pushed into a hollow fixed member so that the movable member is alternately arranged and held at a protruding position and a retracted position with respect to the fixed member. It can be used for the purpose of making it possible to adjust the allowance as well as to adjust the allowance at the time of release.

DESCRIPTION OF SYMBOLS 10 Case main body 11 Flange 11a Locking surface 20 Fixing member 21 End part 22, 23 Holding part 30 Slide member 31 Slide part main body 31a Outward path (guide groove)
31b Return path (guide groove)
31c Convex part 32 Guide protrusion part 32a, 32b Hook part 32c Plane 33 Step member 33a Short side 33b Long side 34 End flange 35 Fitting part 40 Spring 50 Guide pin 51 Locking part 52 Shaft hole 53 Shaft 54 Spring 60 Projection part Body 61, 62 Threaded portion 63 Sleeve 64 Magnet 65 Stopper member 65a Uneven end surface 70 Spring holder 72 Uneven end surface 80 Load absorbing spring 100 Push latch device S Metal piece P Panel

Claims (6)

A cylindrical case body having an open end and a sealed end;
A guide pin having one end pivotably supported by the sealing end of the case body via a shaft and the other end having a locking portion;
A slide member that is mounted in the case main body so as to be movable in the axial direction, and whose tip can protrude from the open end of the case main body,
Urging means for urging the slide member toward the open end of the case body,
The slide member has a cylindrical shape that is rotatably connected to a slide portion main body formed with a guide groove for guiding the travel of the locking portion of the guide pin and a distal end of the slide portion main body via a resiliently deformable connecting member. A projecting portion main body, a stopper member rotatably provided by screwing with a screw formed on the outer peripheral surface of the projecting portion main body, and a female screw formed on the inner peripheral surface of the projecting portion main body. And a holding member that holds the coupling member.   2. The push latch device according to claim 1, further comprising a first lock unit that makes the stopper member non-rotatable in a state where the slide member is in a protruding position. 3. The first locking means is formed on an engaging surface formed in an uneven shape inside the opening end and an end surface on the opening end side of the stopper member, and can be engaged with the unevenness on the engaging surface. Consists of an uneven end surface,
The push latch device according to claim 2, wherein the stopper member is prevented from rotating when the stopper member is fitted to the locking surface.   4. The push latch device according to claim 1, further comprising a second lock unit that makes the holding member non-rotatable in a state in which the lock by the first lock unit is released. 5.   The second locking means includes a concave and convex fitting portion formed at the tip of the slide portion main body, and a concave and convex end surface formed at the rear end of the holding member and fitable with the fitting portion. The push latch device according to claim 4, wherein:   2. The magnet mounting portion is provided at a tip of the projecting portion main body, a screw is engraved on an outer peripheral surface of the magnet mounting portion, and an outer layer pipe member that is screwed to the screw on the outer peripheral surface is provided. 6. The push latch device according to any one of 5 to 5.

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