JP5328480B2 - Push latch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a push latch mountable to a narrow place without a tool and adjustable in the attracting position. <P>SOLUTION: The push latch includes: a first case member 10 formed with a first storage hole 11 opened at one end at least, formed with an internal thread part 12 on the inner peripheral surface of the first storage hole 11, and formed with an engaging part 13 engaged with an object 100 in a relatively unmovable manner when fittingly mounted to a mounting hole 103 formed in the object 100; a second case member 20 formed with an external thread part 25 on the outer peripheral surface, held in a first storage hole 11 when the external thread part 25 is screwed with the internal thread part 12 of the first case member 10, and formed with a second storage hole 21 opened to the one end side of the first case member 10; a sliding member 30 held in the second storage hole 21 and supported in a longitudinally slidable manner to the second case member 20; and a spring 90 held in the second storage hole 21 and energizing the sliding member 30 forward. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a push latch technique for alternately switching between a door closed state and a door open state with respect to a door such as a cabinet.

Conventionally, a mechanism for holding a door such as a cabinet is known. Examples of such a mechanism include a magnet catch and a push latch.
The magnet catch holds the door closed by attracting the door with magnetic force. In the case of a magnetic catch, the user opens the door by manually peeling the door from the magnetic catch (applying an external force greater than the magnetic force).
The push latch holds the door in a closed state by attracting the door with a magnetic force and opens the door with an urging force such as a spring.

The magnet catch disclosed in Patent Document 1 includes a holding means including a case main body, an operation member, a holding member, and the like.
The case body has a cylindrical shape. The case body opens at one end in the cylinder axis direction.
The operating member has a cylindrical shape. The operation member opens at both ends in the cylinder axis direction. A screw portion is formed on the inner peripheral surface of the operation member. The operation member is accommodated in the case body.
The holding means includes a holding member, a magnet, and a yoke. A screw portion that can be screwed with the operation member is formed on the outer peripheral surface of the holding member. The holding member is accommodated in the operation member by screwing the screw portion and the screw portion of the operation member. In addition, a magnet and a yoke are respectively fixed inside the holding member. At this time, the yoke is fixed so as to protrude outward from the magnet.
The magnet catch disclosed in Patent Document 1 configured as described above is attached to a cabinet or the like via a mounting plate and a mounting bracket such as a screw.

  According to the magnet catch disclosed in Patent Document 1, when the door is closed, the door and the yoke of the magnet catch come into contact with each other. Thereby, it can hold | maintain in the state which closed the door. The magnet catch can move the operation member along the cylinder axis direction of the case body by rotating the operation member with respect to the case body. In other words, the magnet catch can adjust the suction position between the door and the yoke.

  However, the magnet catch disclosed in Patent Document 1 requires a mounting plate such as a mounting plate and screws for mounting on a cabinet or the like. For this reason, it is disadvantageous in that the number of parts increases and the installation space increases. Further, when the magnet catch is attached, it is necessary to adjust the attachment position of the magnet catch at the same time, and there is a problem that the work becomes complicated.

On the other hand, the magnet catch disclosed in Patent Document 2 has a configuration in which a mounting hole is formed in a cabinet or the like, and the magnet catch is inserted into the mounting hole and fixed.
According to this, a magnet catch can be attached, without using components separately. That is, the number of parts can be reduced.

  However, in the magnet catches disclosed in Patent Document 1 and Patent Document 2, when the door is opened and closed, it is necessary to separately attach an operation member (for example, a handle for a user to hook) to the door. For this reason, it is disadvantageous in that the design of the cabinet or the like may be restricted, in other words, the aesthetics of the cabinet or the like may be impaired. There is also a problem that the number of parts increases.

The push latch disclosed in Patent Document 3 includes an outer cylinder, an inner cylinder, a slider, a spring, and a rotary.
One end of the outer cylinder is opened. Further, the other end of the outer cylinder is closed.
The inner cylinder is formed with a guide passage that is cut out along the axial direction and the circumferential direction of the inner cylinder. The inner cylinder is accommodated in the outer cylinder.
A magnet and a yoke as described in Patent Document 1 are attached to the slider on the opening side end of the outer cylinder. The slider is accommodated in the inner cylinder.
The spring is housed in the slider and biases the slider toward the other end of the outer cylinder.
The rotary is formed with a protrusion that can slide on the guide passage on the outer peripheral surface. The rotary is accommodated in the outer cylinder and connected to the end of the slider. At this time, the rotary is locked to the guide passage of the inner cylinder.

  According to the push latch disclosed in Patent Document 3, the rotary projection slides on the guide passage by operating the door in contact with the push latch (performing pressing). Thereby, the position of the slider accommodated in the casing can be switched. In other words, it is possible to perform both door opening and closing operations by pressing the door, and there is no need for a handle for the user to catch the hand, so there is a restriction on the design of the cabinet etc. Absent. Therefore, it contributes to improving the aesthetics of the cabinet and the like (the degree of freedom in design increases).

However, the push latch disclosed in Patent Document 3 is disadvantageous in that the suction position between the yoke and the door cannot be adjusted.
In addition, when the suction position is adjusted by forming the screw portion on the outer cylinder and the inner cylinder, the yoke gradually rotates relative to the casing while repeatedly pressing the door, There was a case where the position of the yoke was shifted unintentionally.

Japanese Patent No. 3763955 Registered Utility Model No. 3010748 JP-A-8-303092

  The present invention has been made in view of the above-described circumstances, and provides a push latch that can be attached to a narrow place without a tool and that can adjust a suction position.

In Claim 1, the 1st accommodation hole which an at least one end part opens is formed, and while the internal thread part is formed in the internal peripheral surface of said 1st accommodation hole, the attachment formed in a predetermined target object A first case member formed with an engaging portion that engages with the object so as not to move relative to the object when fitted in a hole;
A male screw part is formed on the outer peripheral surface, and the male screw part is housed in the first housing hole by screwing the male screw part with the female screw part of the first case member, and one end side of the first case member A second case member in which a second accommodation hole is formed, and
By being housed in the second housing hole, a sliding member supported by the second case member so as to be slidable in the longitudinal direction of the second housing hole;
A spring housed in the second housing hole and biasing the sliding member in a direction protruding from the opening of the second housing hole;
Comprising
The sliding member is
A main body that is slidably housed in the longitudinal direction of the second housing hole, is urged by the spring and is formed with a heart cam groove, and an end portion of the main body that protrudes from the second housing hole. An adsorbing portion for adsorbing the adsorbed portion of the predetermined object to the main body by a magnetic force, one end portion being locked to the second case member, and the other end portion engaging the heart cam groove. An engagement pin, and when the torque of a predetermined magnitude or more is applied to the second case member, the second case member is allowed to rotate, and the torque of the predetermined magnitude is applied to the second case member. A rotation restricting mechanism for restricting the rotation of the second case member when a smaller torque is applied, and the rotation restricting mechanism is formed on the inner peripheral surface of the first accommodating hole. 90 ° in a convex shape extending in the longitudinal direction Two engaging projections formed by shifting the phases, and four recesses formed on the outer peripheral surface of the second case member so as to extend in the longitudinal direction of the second case member by shifting the phase by 90 °. has an engaging recess, and the an end portion of a side of the second accommodation hole is opened in the second case member protrudes to the outside of the first case member, the body in which the engagement recess is formed It is formed in a substantially annular shape having a larger diameter than the portion, and includes a head portion having a knurled groove formed on the outer peripheral surface thereof .

According to a second aspect of the present invention, the sliding member includes an attachment member that covers the suction portion to prevent the suction portion from coming into contact with outside air.

According to a third aspect of the present invention, the sliding member slides relative to the second case member so as not to rotate relative to the second case member.

In Claim 4 , the part accommodated in said 2nd accommodation hole in the main body of said sliding member is made into square shape, and the 2nd accommodation hole formed in said 2nd case member is in the main body of said sliding member. The rectangular shape corresponding to the portion accommodated in the second accommodation hole is used.

As effects of the present invention, the following effects can be obtained.
That is, according to the present invention, it can be attached to a narrow place without a tool, and the suction position can be adjusted.

The perspective view which shows the push latch which concerns on this embodiment. The plane sectional view showing the state where the door was closed. FIG. 3 is a partial cross-sectional view taken along line AA in FIG. 2. (A) Sectional drawing which shows a 1st case member. (B) Sectional drawing which shows a 2nd case member. The perspective view which shows the main body of a sliding member. The plane sectional view showing the state where the operation which presses a door was performed. The plane sectional view showing the state where the door was opened. The top sectional view showing the state where the adsorption position of the push latch was adjusted. Explanatory drawing which shows the engagement pin which slides a heart cam groove. (A) The figure which shows the state engaged with the lock point. (B) The figure which shows the state engaged with the 1st switching point. (C) The figure which shows the state engaged with the open point. (D) The figure which shows the state engaged with the 2nd switching point. The plane sectional view showing the state where the attachment member was attached.

  Hereinafter, a push latch 1 which is an embodiment of a push latch according to the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the push latch 1 is attached to a predetermined object 100 including a door 101.
As shown in FIG. 6, the push latch 1 alternately switches between a closed state (see FIGS. 1 and 2) and an open state (see FIG. 6) by pressing the door 101 against the object 100. Is. Examples of the object 100 to which the push latch 1 is attached include, for example, a cabinet installed on a wash basin (a face washing tool, a toothpaste tool, a shelf for storing cosmetics, etc., and a furnishing product including a mirror).

As shown in FIGS. 1 and 2, the push latch 1 includes a first case member 10, a second case member 20, a sliding member 30, and a spring 90.
The push latch 1 is assembled by a series of operations of housing the sliding member 30 and the spring 90 in the second case member 20 and housing the second case member 20 in the first case member 10.

  In the following, for the sake of convenience, “the left side of the push latch 1” and “the right side of the push latch 1” are defined based on the vertical direction of the paper surface in FIG. Further, “rear side of the push latch 1” and “front side of the push latch 1” are defined on the basis of the horizontal direction of the paper surface in FIG. Then, “upward of the push latch 1” and “downward of the push latch 1” are defined on the basis of the direction toward the near side in the direction perpendicular to the paper surface in FIG.

Below, the 1st case member 10 is demonstrated.
As shown in FIGS. 1 and 2, the first case member 10 is directly fixed to the object 100 among the members constituting the push latch 1. The first case member 10 is a substantially cylindrical member having a pair of end surfaces and an outer peripheral surface.
As shown in FIGS. 2 and 3A, the first case member 10 is formed with a first accommodation hole 11 that penetrates a pair of end surfaces of the first case member 10.

  In the first case member 10, a female screw portion 12 is formed at the rear portion of the inner peripheral surface of the first accommodation hole 11. Two engaging convex parts 12a and 12a are formed in the female screw part 12.

  The two engaging convex portions 12a and 12a are formed so as to protrude from the female screw portion 12 toward the inner side in the radial direction of the first case member 10, respectively. The two engaging projections 12a and 12a of the present embodiment are both protrusions (projections) having a shape extending in the longitudinal direction of the first accommodation hole 11 (the front-rear direction in the present embodiment). It is formed on the inner peripheral surface of the hole 11 at a predetermined interval in the circumferential direction.

As shown in FIGS. 1 and 2, the engaging portion 13 includes a flange portion 13a and two projecting portions 13b and 13b.
The flange portion 13 a is formed in a substantially annular shape having an outer diameter larger than the outer diameter of the first case member 10. The flange portion 13 a is formed at the front end portion of the first case member 10.
The two protrusions 13b and 13b are protrusions formed on the left side and the right side of the outer peripheral surface of the first case member 10, respectively, both of which are in the longitudinal direction of the first case member 10 with respect to the flange part 13a (this embodiment). Then, it arrange | positions in the position (position where 90 degree phase shifted | deviated mutually seeing from the longitudinal direction (front-back direction) of the 1st case member 10) in predetermined intervals in the front-back direction. The shape of the two protrusions 13b and 13b is a substantially right triangle shape in which the front end portion protrudes radially outward of the first case member 10 in plan view, and in side view (in left side view or right side view). It is substantially U-shaped.

Below, the 2nd case member 20 is demonstrated.
The second case member 20 accommodates the sliding member 30 and the spring 90 which will be described in detail later. The second case member 20 has a substantially cylindrical shape.
A second accommodation hole 21 is formed in the second case member 20. The front end portion of the second housing hole 21 opens greatly along the longitudinal direction of the second case member 20 (the front-rear direction in the present embodiment) at the axial center position of the two case members 20. In addition, the rear end portion of the second accommodation hole 21 opens small in a substantially arc shape at a position shifted from the axial center position of the second case member 20 (see FIG. 3B).
The second case member 20 includes a head portion 22 and a body portion 24.

  The head portion 22 is a front end portion of the second case member 20 (that is, an end portion on the side where the second accommodation hole 21 is opened in the second case member 20), and the second case member 20 is the first case member. 10 is a portion that protrudes to the outside of the first case member 10 when being accommodated in the first accommodating hole 11. The shape of the head portion 22 in the present embodiment is a substantially annular shape, and the outer diameter of the head portion 22 is larger than the outer diameter of the body portion 24 and the inner diameter of the first accommodation hole 11 described later.

A knurled groove 23 is formed on the outer peripheral surface of the head 22.
The knurled grooves 23 are a plurality of grooves formed side by side along the front-rear direction. The knurled groove 23 has a shape that is cut out at substantially equal intervals with the axis of the second case member 20 as a reference.

  The body part 24 is a part constituting the main structure of the second case member 20 and is accommodated in the first accommodation hole 11. The body portion 24 includes a male screw portion 25, a protruding portion 26, a pin locking hole 27, and a spring locking portion 28.

The male screw portion 25 is formed on the outer peripheral surface of the body portion 24 (and thus the second case member 20). When the male screw portion 25 is screwed with the female screw portion 12 of the first case member 10, the body portion 24 (and thus the second case member 20) is accommodated in the first accommodation hole 11. Supported.
As shown in FIG. 3B, the male screw portion 25 is formed with four engagement recesses 12b, 12b, 12b, and 12b.

The four engaging recesses 12b, 12b, 12b, and 12b are depressions (grooves) formed on the outer peripheral surface of the second case member 20 so as to cross the thread of the male screw portion 25. The four engaging recesses 12b, 12b, 12b, and 12b have shapes extending in the longitudinal direction of the second case member 20 (in the present embodiment, the front-rear direction). The four engaging recesses 12b, 12b, 12b, and 12b are arranged at equal intervals (at positions shifted in phase by 90 ° when viewed from the longitudinal direction (front-rear direction) of the second case member 20).
As shown in FIGS. 2 and 3, when the male screw portion 25 of the second case member 20 is screwed with the male screw portion 25 of the first case member 10, the second case member 20 is brought into contact with the first case member 10. The two engaging convex portions 12a and 12a are engaged with any one of the four engaging concave portions 12b, 12b, 12b, and 12b (adjacent) each time it is rotated by 90 °. It will be in the state (it fitted).

A combination of the two engaging convex portions 12a and 12a and the four engaging concave portions 12b, 12b, 12b, and 12b is an embodiment of the rotation restricting mechanism according to the present invention.
That is, in this embodiment, since both the first case member 10 and the second case member 20 are made of a material (resin material) that can be elastically deformed, the second case member 20 has a rotational force (torque) having a predetermined magnitude or more. Is applied, the first case member 10 and the second case member 20 are elastically deformed, and the two engaging convex portions 12a and 12a are either two of the four engaging concave portions 12b, 12b, 12b, and 12b. The state engaged with the two engaging recesses 12b and 12b is released. In other words, rotation of the second case member 20 with respect to the first case member 10 is allowed.
Further, when a rotational force smaller than a predetermined amount of rotational force (torque) is applied to the second case member 20, the two engaging convex portions 12a and 12a have four engaging concave portions 12b, 12b, 12b, The state engaged with any two engagement recesses 12b and 12b of 12b is maintained, and the rotation of the second case member 20 relative to the first case member 10 is restricted.

  As shown in FIGS. 1 and 2, the protruding portion 26 is a portion formed to protrude further rearward from the rear end portion of the body portion 24. As shown in FIG. 2, the protruding portion 26 is formed in a shape that does not block the opening portion on the rear end side of the second accommodation hole 21 (the portion that opens small in a substantially arc shape shown in FIG. 3B). Is done.

  The pin locking hole 27 is a hole that opens to the left side surface of the protruding portion 26.

  The spring locking portion 28 is a protrusion formed inside the second accommodation hole 21. The spring locking portion 28 of the present embodiment has a shape protruding forward from the right rear end portion of the body portion 24.

  As shown in FIG. 3B, four guide grooves 21 a, 21 a, 21 a, and 21 a are formed on the inner peripheral surface of the second accommodation hole 21 of the second case member 20. The four guide grooves 21a, 21a, 21a, and 21a are grooves extending in the longitudinal direction (front-rear direction) of the second case member 20, and are arcuate when viewed from the longitudinal direction (front-rear direction) of the second case member 20. It has a recessed shape.

Below, the sliding member 30 is demonstrated.
As shown in FIGS. 1 and 2, the sliding member 30 is accommodated in the second accommodation hole 21 of the second case member 20, whereby the longitudinal direction of the second accommodation hole 21 (in the present embodiment, the front-rear direction). The second case member 20 is slidably supported by the second case member 20.
As shown in FIG. 2, the sliding member 30 includes a main body 40, a magnet 50, two attracting pieces 60 and 60, an engagement pin 70, and a drop prevention ring 80.

  The main body 40 is a member constituting the main structure of the sliding member 30. The main body 40 has a head part 41 and a body part 42.

  As shown in FIGS. 2 and 4, the head 41 is a substantially ring-shaped portion that forms the front end of the main body 40. As shown in FIG. 2, the outer diameter of the head 41 is larger than the inner diameter of the second accommodation hole 21. The head 41 is a portion that protrudes to the outside (in the present embodiment, forward) of the second case member 20 when the sliding member 30 is accommodated in the second accommodation hole 21.

As shown in FIG. 4, the body portion 42 is a portion of the main body 40 that forms a rear portion of the head portion 41, and is a member that extends to the rear end portion of the head portion 41. The body part 42 has a shape extending in the front-rear direction, and the outer diameter of the body part 42 is slightly smaller than the inner diameter of the second accommodation hole 21. The body portion 42 is a portion that is slidably accommodated in the second accommodation hole 21 in the main body 40.
Four guide projections 21 b, 21 b, 21 b, 21 b are formed on the outer peripheral surface of the body portion 42. The four guide protrusions 21b, 21b, 21b, and 21b are all protrusions (projections) extending in the longitudinal direction of the body part 42 (in the present embodiment, the front-rear direction). The four guide grooves 21 a, 21 a, 21 a, 21 a (see FIG. 3B) formed on the inner peripheral surface of the two accommodation holes 21 are respectively engaged. The four guide protrusions 21b, 21b, 21b, and 21b engage with the four guide grooves 21a, 21a, 21a, and 21a (see FIG. 3B), respectively, so that the body portion 42 (and thus the sliding member 30). Is allowed to slide in the front-rear direction with respect to the second case member 20, and the body portion 42 (and consequently the sliding member 30) rotates relative to the second case member 20 about the front-rear direction axis. To be restricted (cannot rotate relative).

A guide hole 43 is formed in the front portion of the main body 40. The guide hole 43 is a hole for accommodating the magnet 50 and the two attracting pieces 60 and 60 described in detail later.
The guide hole 43 is a hole that opens to the front end surface of the head 41. The guide hole 43 penetrates the head portion 41 in the front-rear direction, and further reaches the substantially front-rear central portion of the body portion 42. The guide hole 43 is a substantially rectangular hole when viewed from the axial direction of the main body 40 (in the present embodiment, the front-rear direction), and is disposed at the axial center position of the main body 40.

The body portion 42 is formed with a pair of through holes 44. The pair of through holes 44 and 44 are holes for locking two adsorbing pieces 60 and 60 described later.
The upper through hole 44 communicates the upper surface of the body part 42 with the guide hole 43, and the lower through hole 44 communicates the lower surface of the body part 42 with the guide hole 43.

  As shown in FIGS. 2 and 4, a notch 45 is formed in the right rear portion of the body portion 42. The notch 45 forms a space for accommodating a spring 90 to be described later, and forms a portion that contacts the spring 90 in the body portion 42 (main body 40).

  As shown in FIG. 4, the heart cam groove 46 is a groove formed in the rear portion of the left side surface of the main body 40. The heart cam groove 46 has a substantially heart shape when viewed from the left side (see FIG. 8). A plurality of step portions are formed at the bottom of the heart cam groove 46. Details of the heart cam groove 46 will be described later.

  As shown in FIGS. 1 and 2, the magnet 50 of the present embodiment is a rectangular parallelepiped permanent magnet. The kind of permanent magnet which comprises the magnet 50 is not specifically limited, It can achieve with the existing permanent magnet.

  The two adsorbing pieces 60 and 60 are each formed in a substantially plate shape. The front end portions of the two suction pieces 60 and 60 are each bent perpendicular to the plate surface. Further, the two suction pieces 60, 60 are each formed with a substantially annular projection on the surface opposite to the direction in which the front end is bent. Such two adsorption | suction pieces 60 * 60 are comprised with a suitable metal material.

  The magnet 50 is fixed to the two attracting pieces 60 and 60. More specifically, the magnet 50 is fixed so as not to be relatively movable while being sandwiched between the two attracting pieces 60 and 60 from above and below. The two adsorbing pieces 60 and 60 are fixed so as not to move relative to the main body 40 by fitting the protrusions into the pair of through holes 44 and 44 (see FIG. 4). At this time, the front end portions of the two suction pieces 60 and 60 protrude forward from the head portion 41 of the main body 40, respectively.

As shown in FIG. 2, the engagement pin 70 is formed in a substantially cylindrical shape. Both end portions of the engagement pin 70 in the axial direction (the front-rear direction in the present embodiment) are bent perpendicularly to the axial direction (front-rear direction) of the engagement pin 70, respectively. A rear end portion of the engaging pin 70 that is bent serves as a locking end portion 71. The front end portion of the engagement pin 70 that is bent is a sliding end portion 72.
The engaging end portion 71 of the engaging pin 70 protrudes outward from the rear end portion of the second accommodation hole 21 and is engaged with the pin engaging hole 27. On the other hand, the sliding end 72 of the engagement pin 70 engages with the heart cam groove 46. At this time, as shown in FIGS. 2 and 8, the rear end portion of the engagement pin 70 can slide in the heart cam groove 46.

  As shown in FIG. 2, the drop-off prevention ring 80 is formed by bending a substantially rod-shaped member into a spiral shape. The dropout prevention ring 80 is wound around the protrusion 26 and the engagement pin 70 of the second case member 20. Accordingly, the drop prevention ring 80 prevents the engagement pin 70 from dropping from the second case member 20 and the sliding member 30.

Hereinafter, the spring 90 will be described.
The spring 90 urges the sliding member 30 in a direction from the rear direction toward the front direction (a direction protruding from the opening portion of the second accommodation hole 21). The spring 90 is configured by, for example, a compression coil spring obtained by spirally forming a round bar made of spring steel. The spring 90 is locked at the rear end portion by the spring locking portion 28 of the second case member 20, and the front end portion is in contact with the front end portion of the cutout portion 45 of the main body 40. That is, the spring 90 biases the main body 40 of the sliding member 30 in the direction from the rear direction toward the front direction.

Below, the sliding of the sliding member 30 is demonstrated.
As shown in FIGS. 2 and 5, the sliding member 30 has a front portion (for example, the head 41 of the main body 40 and the front end portions of the two suction pieces 60, 60) projecting outside from the second accommodation hole 21. When the pressing operation is performed in the backward direction from the direction, the sliding is performed in the backward direction from the forward direction. Then, the sliding member 30 alternately switches between a state where it is drawn into the second accommodation hole 21 as shown in FIG. 2 and a state where it protrudes from the second accommodation hole 21 as shown in FIG. Such switching is performed by the sliding end portion 72 of the engaging pin 70 sliding in the heart cam groove 46.

  As shown in FIGS. 4 and 8, the heart cam groove 46 is a continuous groove passing through the lock point 46a, the first switching point 46b, the regulation point 46c, the open point 46d, and the second switching point 46e.

As shown in FIGS. 4 and 8A, the lock point 46 a is a point at the front portion of the heart cam groove 46. The rear side portion of the heart cam groove 46 at the lock point 46a is formed in a substantially arc shape that is recessed in the rear portion. That is, the sliding end 72 of the engagement pin 70 engages with the heart cam groove 46 when sliding to the lock point 46 a of the heart cam groove 46.
Thus, when the sliding end portion 72 of the engaging pin 70 is engaged with the lock point 46a, the sliding member 30 is pulled into the second accommodation hole 21 as shown in FIG. .

As shown in FIGS. 4 and 8B, the first switching point 46b is a lower front portion of the lock point 46a. A stepped portion is formed at the bottom of the heart cam groove 46 at the first switching point 46b so that the sliding end 72 of the engagement pin 70 cannot slide toward the lock point 46a. That is, the sliding end 72 of the engagement pin 70 can slide from the lock point 46a toward the first switching point 46b, and cannot slide from the first switching point 46b toward the lock point 46a. .
According to this, as shown in FIG. 5 and FIG. 8B, when the sliding member 30 pulled into the second accommodation hole 21 is pressed in the direction from the front to the rear, The sliding end 72 of the combined pin 70 slides toward the first switching point 46b.

As shown in FIG. 4 and FIG. 8C, the restriction point 46c is a point behind the first switching point 46b. A stepped portion is formed at the bottom of the heart cam groove 46 at the restriction point 46c so that the sliding end 72 of the engagement pin 70 cannot slide toward the first switching point 46b. That is, the sliding end 72 of the engagement pin 70 can slide from the first switching point 46b toward the restriction point 46c, and cannot slide from the restriction point 46c toward the first switching point 46b. .
That is, as shown in FIG. 8C, the sliding end portion 72 of the engaging pin 70 that has slid to the first switching point 46 b performs the operation of pressing the sliding member 30, and then is applied by the biasing force of the spring 90. , Slide toward the restriction point 46c.

As shown in FIGS. 4 and 8C, the open point 46 d is a point at the rear end of the heart cam groove 46. At the open point 46d, the rear side portion of the heart cam groove 46 is formed in a substantially arc shape that is recessed in the lower rear portion.
That is, the sliding end portion 72 of the engaging pin 70 that has slid to the restriction point 46 c slides toward the open point 46 d by the biasing force of the spring 90. The sliding end 72 of the engaging pin 70 engages with the heart cam groove 46 when sliding to the open point 46 d of the heart cam groove 46. Thus, when the sliding end portion 72 of the engaging pin 70 is engaged with the open point 46d, the sliding member 30 protrudes from the second accommodation hole 21 as shown in FIG.

As shown in FIGS. 4 and 8D, the second switching point 46 e is a point at the upper front end of the heart cam groove 46. A stepped portion is formed at the bottom of the heart cam groove 46 at the second switching point 46e so that the sliding end 72 of the engagement pin 70 cannot slide toward the open point 46d. That is, the sliding end 72 of the engagement pin 70 can slide from the open point 46d toward the second switching point 46e, and cannot slide from the second switching point 46e toward the open point 46d. .
That is, as shown in FIG. 5 and FIG. 8D, when the operation of pressing the sliding member 30 protruding from the second accommodation hole 21 in the direction from the front direction to the rear direction is performed, The sliding end 72 slides toward the second switching point 46e.

Further, a stepped portion is formed at the bottom of the heart cam groove 46 at the lock point 46a so that the sliding end 72 of the engagement pin 70 cannot slide toward the second switching point 46e. That is, the sliding end portion 72 of the engagement pin 70 can slide from the second switching point 46e toward the locking point 46a, and cannot slide from the locking point 46a toward the second switching point 46e. .
That is, the sliding end portion 72 of the engaging pin 70 that has slid to the second switching point 46e slides toward the lock point 46a by the urging force of the spring 90 after performing the operation of pressing the sliding member 30. To do. The sliding end 72 of the engaging pin 70 engages with the heart cam groove 46 when sliding to the open point 46 d of the heart cam groove 46. Thus, when the sliding end 72 of the engaging pin 70 is engaged with the open point 46d, the sliding member 30 is in a state of being drawn into the second accommodation hole 21 as shown in FIG. .

As shown in FIG. 8, the sliding end 72 of the engagement pin 70 slides in the order of the lock point 46a, the first switching point 46b, the restriction point 46c, the open point 46d, and the second switching point 46e. Thereby, the sliding member 30 can switch alternately the state pulled in the 2nd accommodation hole 21 as shown in FIG. 2, and the state protruded from the 2nd accommodation hole 21 as shown in FIG.
Further, when the sliding end 72 of the engaging pin 70 slides, the engaging pin 70 slides in the vertical direction with the locking end 71 as the rotation center. That is, the opening portion on the rear end side of the second accommodation hole 21 opens to such an extent that the sliding end portion 72 of the engagement pin 70 does not interfere with the sliding.

Below, attachment of push latch 1 is explained.
As shown in FIG. 2, the push latch 1 is attached to the object 100 by fitting the first case member 10 into the attachment hole 103 of the object 100. At this time, the first case member 10 is inserted until the rear surface of the flange portion 13a contacts the front surface of the object 100. The two protrusions 13b and 13b of the first case member 10 are elastically deformed to the object 100 so that the inner diameter of the mounting hole 103 of the object 100 is increased. When the two protrusions 13b and 13b of the first case member 10 are inserted into the object 100, in other words, the two protrusions 13b and 13b of the first case member 10 are arranged inside the object 100. When this is done, the rear surface of the flange portion 13a and the front surface of the object 100 abut.
Thereby, since the mounting hole 103 of the target object 100 and the two protrusions 13b and 13b of the first case member 10 are engaged, the first case member 10 moves in the front-rear direction with respect to the mounting hole 103 of the target object 100. It is attached so that relative movement is impossible. In other words, when the first case member 10 is fitted in the mounting hole 103 of the target object 100, the engaging portion 13 locks the push latch 1 with respect to the target object 100 so as not to move relative to the target object 100.

  According to this, the push latch 1 can be attached to the attachment hole 103 of the object 100 without using a tool. Further, when the push latch 1 is attached, the push latch 1 can be attached without using a separate member such as a screw. Therefore, the push latch 1 can be attached in a narrow place.

Moreover, the structure of the engaging part 13 of the 1st case member 10 is not limited to this embodiment. The engaging portion 13 may be configured to be able to lock the push latch 1 with respect to the object 100 so that the push latch 1 cannot be moved relative to the object 100 when the push latch 1 is fitted in the mounting hole 103 of the object 100. That is, the engaging portion 13 may be configured to form the flange portion 13a, the groove portion, and the protruding portion. Such a groove is formed on the outer peripheral surface of the first case member 10. Further, the protrusion is formed to fit into the groove when pressed against the radially inner side of the first case member 10.
In this case, when the first case member 10 is inserted into the attachment hole 103 of the object 100, the protrusion is elastically deformed and accommodated in the groove. And when the rear surface of the flange part 13a and the front surface of the target object 100 contact | abut, a projection part protrudes from a groove part. Thereby, the push latch 1 can be attached to the object 100 so as not to move relative to the object 100.

  Further, the engaging portion 13 of the first case member 10 may be configured to form a plurality of grooves on the outer peripheral surface of the first case member 10. In this case, when the first case member 10 is fitted into the attachment hole 103 of the object 100 by making the inner diameter of the attachment hole 103 of the object 100 slightly smaller than the outer diameter of the first case member 10, The frictional force generated between the mounting hole 103 of the object 100 and the plurality of grooves increases. For this reason, the push latch 1 can be attached to the object 100 so as not to move relative to the object 100.

Below, the opening / closing operation | movement of the door 101 is demonstrated.
As shown in FIG. 2, the door 101 of the object 100 is formed with an attracted portion 102 that is attracted by a magnetic force at a position where the door 101 contacts the push latch 1 when the door 101 is closed.
When the push latch 1 and the door 101 come into contact with each other, the push latch 1 sucks the attracted portion 102 of the door 101 by a magnetic force. Thereby, the push latch 1 holds the door 101 in a closed state. That is, the sliding end 72 of the engagement pin 70 is engaged with the lock point 46a as shown in FIG.

At this time, the suction target portion 102 of the door 101 is in contact with the two suction pieces 60 and 60. In other words, the magnet 50 attracts the attracted portion 102 of the door 101 via the two attracting pieces 60 and 60. According to this, when the magnet 50 and the attracted part 102 of the door 101 are in direct contact, the magnet 50 can be prevented from being damaged by the impact.
As described above, the configuration including the magnet 50 and the two attracting pieces 60 and 60 of the present embodiment serves as an attracting part for attracting the attracted part formed on the predetermined object according to the present invention to the main body by magnetic force. Function.

  When the operation of pressing the closed door 101 as shown in FIG. 2 against the object 100 is performed, the sliding member 30 is pulled into the second accommodation hole 21 (rearward) as shown in FIG. To slide. That is, the sliding end 72 of the engagement pin 70 slides to the first switching point 46b as shown in FIG.

  After performing the operation of pressing the door 101 as shown in FIG. 5 against the object 100, the sliding member 30 moves in the direction in which the sliding member 30 protrudes to the outside by the urging force of the spring 90 (forward). ) Slide vigorously. That is, the sliding end 72 of the engagement pin 70 is engaged with the open point 46d as shown in FIG. Thereby, the push latch 1 switches from the state in which the door 101 is closed to the state in which the door 101 is opened. That is, the state where the door 101 is closed corresponds to the state where the sliding member 30 is drawn into the second accommodation hole 21.

  When the operation of pressing the door 101 in the open state as shown in FIG. 6 against the object 100 is performed, the sliding member 30 is pulled into the second accommodation hole 21 (rear) as shown in FIG. To slide. That is, the sliding end 72 of the engagement pin 70 slides to the second switching point 46e as shown in FIG.

  After the operation of pressing the door 101 against the object 100 as shown in FIG. 5, the sliding member 30 is projected in the direction in which the sliding member 30 protrudes to the outside by the biasing force of the spring 90 (see FIG. 2). Slide forward). At this time, the sliding end 72 of the engagement pin 70 is engaged with the lock point 46a as shown in FIG. At this time, since the distance from the second switching point 46e to the lock point 46a is short, the sliding of the sliding member 30 is locked while the door 101 is adsorbed. Thereby, the push latch 1 switches from the state in which the door 101 is opened to the state in which the door 101 is closed. That is, the state in which the door 101 is opened corresponds to the state in which the sliding member 30 protrudes from the second accommodation hole 21.

Hereinafter, adjustment of the suction position (hereinafter referred to as “suction position”) between the two suction pieces 60 and 60 of the sliding member 30 and the suction target portion 101 of the door 101 will be described.
As described above, the second case member 20 is accommodated in the first accommodation hole 11 when the male screw portion 25 is screwed with the female screw portion 12 of the first case member 10. That is, as shown in FIGS. 2 and 7, the second case member 20 rotates along the longitudinal direction (front-rear direction) of the first case member 10 by rotating the head portion 22 with respect to the first case member 10. Moving. At this time, the sliding member 30 rotates as the second case member 20 rotates. That is, the sliding member 30 moves as the second case member 20 moves (slides in the longitudinal direction (front-rear direction) of the second accommodation hole 21). Thereby, the push latch 1 can adjust the suction position.

Here, as described above, the second case member 20 is configured to allow the rotation of the second case member 20 relative to the first case member 10 when a rotational force of a predetermined magnitude or more is applied.
For this reason, while the operation of repeatedly pressing the door 101 against the object 100 is performed, the second case member 20 gradually rotates relative to the first case member 10, and the two suction pieces 60. The position of 60 can be prevented from shifting.

  In addition, although the rotation control mechanism was comprised by the two engagement convex parts 12a * 12a and the four engagement recessed parts 12b * 12b * 12b * 12b, it is not limited to this. That is, the rotation restricting mechanism repeats the operation of pressing the door 101 against the object 100 repeatedly, so that the second case member 20 does not gradually rotate relative to the first case member 10. Any configuration that restricts the rotation of the second case member 20 with respect to 10 may be used. That is, the rotation restricting mechanism has a recess (groove) formed on the inner peripheral surface of the first case member 10 so as to cross the thread of the female screw portion 12 and the second restricting mechanism 20 on the outer peripheral surface of the second case member 20. The structure in which the protrusion (projection) which has the shape extended in the longitudinal direction (front-back direction) of the two accommodation holes 21 may be sufficient.

  Since the knurled groove 23 is formed in the head portion 22 of the second case member 20, the second case member is compared with the case where the outer peripheral surface of the head portion 22 of the second case member 20 is a flat surface. It becomes the structure which rotates 20 easily. That is, the push latch 1 of this embodiment becomes a structure which can adjust an adsorption | suction position easily.

  The shape of the knurled groove 23 is not particularly limited. That is, the knurled groove 23 may have any shape that facilitates the rotation of the head portion 22 of the second case member 20. For example, the knurled groove 23 is inclined at a predetermined angle with respect to the longitudinal direction (front-rear direction) of the second case member 20. It may be a groove like this.

Further, as described above, the main body 40 is allowed to slide the sliding member 30 in the front-rear direction with respect to the second case member 20, and the sliding member 30 is relative to the second case member 20. The relative rotation about the longitudinal axis is restricted. That is, the second case member 20 is configured to be restricted from relative rotation as the main body 40 of the sliding member 30 rotates.
For this reason, the push latch 1 can adjust the suction position by rotating the end portion (for example, the head 41 of the main body 40) protruding from the second accommodation hole 21 of the sliding member 30.

  In addition, in this embodiment, the structure which controls that the sliding member 30 rotates relatively with respect to the 2nd case member 20 has four guide grooves 21a * 21a * 21a * 21a and four guide projection parts 21b * 21b. -Although it was set as 21b * 21b, it is not limited to this. That is, in this configuration, the shape of the body portion 42 of the main body 40 of the sliding member 30 is a square shape, and the second accommodation hole 21 is a square shape corresponding to the shape of the body portion 42 of the main body 40 of the sliding member 30. It does not matter. Examples of such a square shape include a quadrangle and a hexagon.

  Further, as shown in FIG. 9, the push latch 1 may be configured to include a mounting member 63 that covers the attraction portion (in this embodiment, the magnet 50 and the two attraction pieces 60 and 60) on the sliding member 30. Absent. The attachment member 63 is attached to the head 41 of the main body 40 so as to protrude outward from the head 41 of the main body 40 along the axial direction (front-rear direction) of the main body 40.

  When such an attachment member 63 is attached, the attracting portion (the magnet 50 and the two attracting pieces 60 and 60) does not come into contact with outside air. For this reason, when the push latch 1 is attached to the object 100 installed in an environment where the adsorbing portion (the magnet 50 and the two adsorbing pieces 60 and 60) is easily rusted by outside air, for example, in an environment with high humidity, the push latch 1 It is possible to prevent the attracting portion (the magnet 50 and the two attracting pieces 60 and 60) from rusting. Examples of such an object 100 include a cabinet installed on a washstand. Further, since the attracting portion (the magnet 50 and the two attracting pieces 60 and 60) does not directly contact the attracted portion 102 of the door 101, the push latch 1 can improve the durability of the sliding member 30.

The attachment member 63 may be configured to be formed integrally with the main body 40 by forming a protruding portion that protrudes outward from the head 41 of the main body 40.
Moreover, although the attachment member 63 of this embodiment was the structure attached to the head 41 of the main body 40, it is not limited to this. That is, the attachment member 63 only needs to prevent the attracting portion (the magnet 50 and the two attracting pieces 60 and 60) from coming into contact with outside air. For example, the attachment member 63 may be attached to the head 22 of the second case member 20. I do not care.

  Further, when the attachment member 63 is attached, the attracted portion 102 of the door 101 is in contact with the attachment member 63. That is, the push latch 1 is configured such that the magnet 50 and the attracted portion 102 of the door 101 are not in direct contact. In such a case, the push latch 1 may be configured not to include the two suction pieces 60 and 60. In this case, the configuration including the magnet 50 and the attachment member 63 functions as the attracting portion according to the present invention.

  As described above, the push latch 1 is formed with the first accommodation hole 11 having at least one open end, the female screw portion 12 is formed on the inner peripheral surface of the first accommodation hole 11, and the object 100 is A first case member 10 in which an engaging portion 13 is formed that engages with the object 100 so as not to move relative to the object 100 when fitted in the mounting hole 103 to be formed, and a male screw portion 25 is formed on the outer peripheral surface. The second housing hole that is accommodated in the first housing hole 11 by screwing the male thread portion 25 into the female thread portion 12 of the first case member 10 and that opens to one end side of the first case member 10. By being accommodated in the second case member 20 in which 21 is formed and the second accommodation hole 21, the second case member 20 is supported by the second case member 20 so as to be slidable in the longitudinal direction (front-rear direction) of the second accommodation hole 21. The sliding member 30 and the second accommodation hole 21 accommodate the sliding member 30. A spring 90 that urges the member 30 in a direction protruding from the opening portion of the second accommodation hole 21 (a direction from the rear direction toward the front direction). Body 40 slidably accommodated in the direction (front-rear direction), biased by spring 90 and formed with heart cam groove 46, and the end of head 40 protruding from second accommodation hole 21 (head) 41), an attracting part (magnet 50 and two attracting pieces 60, 60) for attracting the attracted part 102 of the object 100 (door 101) to the main body 40 by magnetic force, and one end (locking end) Portion 71) is engaged with the second case member 20 and the other end portion (sliding end portion 72) is provided with an engagement pin 70 that engages with the heart cam groove 46.

  By comprising in this way, the push latch 1 can be attached to the target object 100, without using a tool. Moreover, compared with the case where the push latch 1 is attached using attachment brackets, such as a screw | thread, it can attach to a narrow place. Furthermore, the suction position between the push latch 1 and the door 101 included in the object 100 can be adjusted.

As described above, the push latch 1 allows the second case member 20 to rotate when a torque of a predetermined magnitude or more is applied to the second case member 20, and the second case member 20 has a predetermined magnitude. When a torque smaller than the torque is applied, a rotation restricting mechanism that restricts the rotation of the second case member 20 is provided.
The rotation restricting mechanism includes two engagement convex portions 12 a and 12 a formed on either the inner peripheral surface of the first housing hole 11 or the outer peripheral surface of the second case member 20, and the first housing hole 11. It has four engagement recessed parts 12b * 12b * 12b * 12b formed in either one of an inner peripheral surface and the outer peripheral surface of the 2nd case member 20. As shown in FIG.

  By comprising in this way, it can prevent that the direction of two adsorption | suction pieces 60 * 60 shift | deviates, while performing the operation | movement which presses the door 101 against the target object 100 repeatedly. That is, the beauty of the object 100 to which the push latch 1 is applied can be improved.

  As described above, the sliding member 30 includes the attachment member 63 that prevents the attracting portion from coming into contact with the outside air by covering the attracting portion (the magnet 50 and the two attracting pieces 60 and 60).

  By configuring in this way, the push latch 1 can be applied to the object 100 that is installed in an environment where the attracting portion (the magnet 50 and the two attracting pieces 60 and 60) is easily rusted by the outside air. Further, the durability of the sliding member 30 can be improved. That is, the durability of the push latch 1 can be improved.

  As described above, the push latch 1 is an end portion (front end portion) of the second case member 20 on the side where the second accommodation hole 21 is open and a portion protruding from the first case member 10 (head). A knurled groove 23 is formed on the outer peripheral surface of the portion 22).

  By comprising in this way, the adsorption | suction position of the push latch 1 can be adjusted easily.

Thus, the sliding member 30 slides relative to the second case member 20 so as not to rotate relative to the second case member 20.
Further, in the push latch 1, a portion of the main body 40 of the sliding member 30 that is accommodated in the second accommodation hole 21 has a square shape, and the second accommodation hole 21 formed in the second case member 20 is formed in the sliding member 30. The main body 40 has a square shape corresponding to the portion accommodated in the second accommodation hole 21.

  With this configuration, the suction position of the push latch 1 can be adjusted by rotating the sliding member 30.

  In addition, although the 1st accommodation hole 11 of the 1st case member 10 was the shape by which the both ends of the 1st case member 10 were opened, it is not limited to this. That is, the first accommodation hole 11 of the first case member 10 only needs to accommodate the second case member 20. For example, the first accommodation hole 11 may have a shape in which the front end is opened and the rear end is closed. I do not care.

  Moreover, although the 2nd accommodation hole 21 of the 2nd case member 20 was formed by opening the both ends of the 2nd case member 20, it is not limited to this. That is, the second case member 20 only needs to be able to accommodate the sliding member 30 in the second accommodation hole 21. For example, the front end portion of the second case member 20 is opened and the rear end portion is closed. It may be a shape.

  Moreover, although the guide hole 43 of the sliding member 30 was formed by opening the front end part of the main body 40, it is not limited to this. That is, the guide hole 43 of the sliding member 30 only needs to be able to attach the two suction pieces 60 and 60 to the main body 40 and to form the heart cam groove 46 in the main body 40. The shape which the both ends of the main body 40 open may be sufficient.

  In the present embodiment, the sliding of the sliding member 30 is locked by the heart cam groove 46 and the engaging pin 70, but the present invention is not limited to this. That is, the configuration for locking the sliding of the sliding member 30 may be an appropriate configuration so that the directions and the suction positions of the two suction pieces 60 and 60 are not shifted.

DESCRIPTION OF SYMBOLS 1 Push latch 10 1st case member 11 1st accommodation hole 12 Female thread part 12a Engagement convex part 12b Engagement recessed part 13 Engagement part 20 Second case member 21 Second accommodation hole 25 Male thread part 30 Sliding member 46 Heart cam Groove 70 Engaging pin 71 Locking end 72 Sliding end 90 Spring 100 Object 102 Adsorbed part 103 Mounting hole

Claims (4)

A first accommodation hole having at least one open end is formed, an internal thread portion is formed on the inner peripheral surface of the first accommodation hole, and the first accommodation hole is fitted in an attachment hole formed in a predetermined object. A first case member that is formed with an engaging portion that sometimes engages with the object so as not to move relatively;
A male screw part is formed on the outer peripheral surface, and the male screw part is housed in the first housing hole by screwing the male screw part with the female screw part of the first case member, and one end side of the first case member A second case member in which a second accommodation hole is formed, and
By being housed in the second housing hole, a sliding member supported by the second case member so as to be slidable in the longitudinal direction of the second housing hole;
A spring housed in the second housing hole and biasing the sliding member in a direction protruding from the opening of the second housing hole;
Comprising
The sliding member is
A main body that is slidably accommodated in the longitudinal direction of the second accommodation hole, is energized by the spring, and has a heart cam groove formed thereon;
An adsorbing portion that is disposed at an end portion of the main body that protrudes from the second accommodation hole, and adsorbs the adsorbed portion of the predetermined object to the main body by magnetic force;
An engagement pin with one end locked to the second case member and the other end engaged with the heart cam groove;
Equipped with a,
When a torque of a predetermined magnitude or more is applied to the second case member, the second case member is allowed to rotate, and a torque smaller than the predetermined magnitude torque is applied to the second case member. In the case, it comprises a rotation restricting mechanism for restricting the rotation of the second case member,
The rotation restricting mechanism is
Two engaging projections formed on the inner peripheral surface of the first accommodation hole in a convex shape extending in the longitudinal direction of the first accommodation hole with a 90 ° phase shift;
Four engaging recesses formed on the outer peripheral surface of the second case member in a concave shape extending in the longitudinal direction of the second case member with a phase shifted by 90 °,
Have
The end on the side of the second accommodation hole in the second case member is opened, it protrudes to the outside of the first case member, substantially annular having a diameter larger than that of the body portion to which the engaging recess is formed A push latch comprising a head formed on the outer peripheral surface of which a knurled groove is formed . The sliding member is
The push latch of Claim 1 provided with the attachment member which prevents that the said adsorption | suction part contacts external air by covering the said adsorption | suction part. The sliding member is
The push latch of Claim 1 or Claim 2 which slides relative to said 2nd case member so that relative rotation is impossible. The portion accommodated in the second accommodation hole in the main body of the sliding member has a square shape,
4. The push latch according to claim 3 , wherein the second housing hole formed in the second case member has a rectangular shape corresponding to a portion housed in the second housing hole in the main body of the sliding member.

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