JP2014134043A - Latch device and fittings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a latch device which can suppress a noise, generated when opening and closing a fitting body, to a sufficiently satisfied level.SOLUTION: A latch device comprises: a latch body 4a mounted to a fitting body 3; a receiving part 4b mounted to a frame body 1; and an internal space 5a for slowing down the projection speed of a latch member 6 in a case 5 of the latch body 4a. There is no clearance or the like, communicating with the outside of the case 5, around a stopper member 9 comprising a cushioning material with which an energizing means receiving member (a nut 8) energized by energizing means (a coil spring 10) collides, whereby transmission of the collision noise to the outside of the case 5 can be reduced to suppress a noise, caused by the latch device when opening and closing the fitting body 3, to a sufficiently satisfied level.

Description

  The present invention relates to a latch device and a fitting for restricting the position of a building concrete to a closed position by the latch device.

A latch device used for joinery is disclosed in Patent Document 1.
The latch device includes a receiving portion provided on the frame body and a latch main body provided on the face material (construction concrete), and the face material (construction concrete) is closed by engaging the latch main body with the reception portion. The position is restricted to the position.
The latch body includes a base member (case), a latch member, a bolt provided on the latch member, and a nut screwed to the bolt. The latch member is inserted into the base hole of the base member, and the nut is a base. A space is formed inside the latch body by being inserted into the housing portion of the member, and the nut is energized by a coil spring provided in the housing portion and inserted into the insertion portion of the base member, and the nut is placed on the nut movement restriction member provided. The latch member protrudes from the base hole by abutting, and the coil spring is compressed and deformed by pressing the latch member so that the latch member is immersed in the base hole.

Japanese Patent No. 4988639

The latch device disclosed in Patent Document 1 can change the protrusion amount of the latch member because the bolt rotates with respect to the nut and the latch member moves by rotating the latch member.
Moreover, since the nut does not move when the protruding amount of the latch member is changed, the biasing force of the latch member by the coil spring can be made constant without changing the amount of contraction of the coil spring.

The fitting using this latch device has a problem that a loud sound caused by the latch device is generated when opening and closing the building concrete.
For example, when opening the joinery in the closed position, the latch member is detached from the receiving portion, the coil spring that has been compressed and deformed extends, the latch member protrudes from the base hole, and the nut collides with the nut movement restricting member. The collision sound is generated and propagates to the outside through the gap between the insertion portion of the base member and the nut movement restricting member.
When the open joinery is set to the closed position, first, the latch member interferes with the receiving member and is immersed in the base hole against the coil spring, and further, the latch is rotated to the closed position. Since the coil spring protrudes from the base hole and engages with the receiving portion, an engagement sound is generated.
In addition, when the building is opened and closed, as described above, the building member vibrates as the latch member slides in the base hole of the base member, and the building member vibrates, and a sound is generated.

  The latch device disclosed in Patent Document 1 restricts the outside air from flowing into the space of the base member, applies an air damper force, slows the protruding speed of the latch member by the coil spring, and While trying to suppress noise due to vibration, the space in the base member communicates with the outside through the gap between the insertion part of the base member and the nut movement restricting member, so that sufficient air damper force can be obtained. However, there is a limit to the suppression of each sound described above, and it cannot be suppressed to the extent that the sound caused by the latch device is sufficiently satisfied when the building is opened and closed.

  An object of the present invention is to provide a latch device and a joiner that can be suppressed to a level that sufficiently satisfies the sound caused by the latch device when opening and closing the building when used in a joiner.

The present invention has a frame body and a latch body attached to one of the building components supported by the frame body so as to be freely opened and closed, and a receiving portion attached to the other, and the latch member of the latch body is urged by an urging means. A latch device for restricting the position of the building concrete to a closed position by being engaged with the receiving portion,
The latch body is
A first case having a latch member insertion hole into which the latch member is inserted and a second case having an urging means insertion hole into which the urging means is inserted. A case connected so that the insertion hole communicates;
Biasing means inserted into the biasing means insertion hole;
A latch member inserted into the latch member insertion hole so as to protrude and retract, and
A rod-shaped member provided on the latch member;
An urging means receiving member attached to the rod-shaped member and received in the urging means insertion hole of the second case and receiving the urging force of the urging means;
An air circulation part that communicates the internal space of the latch member insertion hole defined on the second case side by the inserted latch member and the space outside the case;
A stopper member provided between the first case and the second case so that at least the inside of the second case is hermetically sealed and a buffer member that restricts the movement of the urging means receiving member in the urging direction. A latch device characterized by the above.

In the latch device of the present invention, the first case and the second case have a substantially cylindrical shape having a bottom wall opened at one end,
Forming a through hole through which the rod-shaped member penetrates in the bottom wall of the first case, and providing a stopper member around the through hole in the outer surface of the bottom wall of the first case;
A case in which the opening end surface of the second case is in contact with a stopper member to connect the first case and the second case, and the latch member insertion hole of the first case and the biasing means insertion hole of the second case communicate with each other through the through hole. It can be.
In this case, the latch member is inserted into the latch member insertion hole of the first case, the rod-like member protrudes from the through hole, and the second case is placed in the state where the biasing member receiving member is provided on the rod-like member. The latch main body can be assembled by connecting to.

The latch device according to the present invention is a coupling portion that engages the first case and the second case so that a stopper member provided on the bottom wall of the first case and the opening end surface of the second case are in contact with each other. And a connected part can be provided.
By doing so, the biasing means receiving member collides against the stopper member by the biasing means, so that the stopper member and the opening end surface of the second case are not separated.

In the latch device of the present invention, the connecting portion has a groove formed in the bottom wall of the first case, and an engagement receiving portion formed on the outer peripheral surface,
The said to-be-connected part can be fitted with the said groove | channel, and can have a locking piece engaged with the said engagement receiving part.
If it does in this way, while engaging an engagement piece with a groove | channel and engaging with an engagement receiving part, it can connect so that a 1st case and a 2nd case may not rotate relatively, and a bolt rotates with a latch member. In this case, since the second case does not rotate with respect to the first case, it is preferable when the latch member is rotated to change the protrusion amount of the latch member.

  According to the latch device of the present invention, the collision sound when the urging means receiving member collides with the stopper member is small, and the collision sound is reduced from propagating to the outside of the case, and the protrusion speed of the latch member is sufficiently increased. Therefore, when this latch device is used as a fitting, it is possible to suppress the sound caused by the latch device when the concrete building is opened and closed sufficiently to the extent that it can be sufficiently satisfied.

  According to the joinery of the present invention, the first case is fixed to the case-specific case fixing portion, and the second case is in contact with the case-specific case support portion, so that the first case and the second case are separated. The durability of the latch device is improved.

It is an external view of joinery. It is an AA expanded sectional view of FIG. It is an expanded cross-sectional view of a latch main body. It is an enlarged vertical sectional view of a latch body. It is a disassembled perspective view of a latch main body.

As shown in FIG. 1, the joinery 1 has a building body 3 attached to a frame 2 so as to be freely opened and closed by a hinge (not shown).
The frame 2 includes an upper frame 20, a lower frame 21, one left and right vertical frame 22, and the other vertical frame 23.
In the construction concrete 3, a panel 35 made of glass or the like is attached to a gutter assembly 34 having an upper gutter 30, a lower gutter 31, left and right vertical gutters 32, and the other vertical gutter 33.
The left and right vertical rods 32 are hingedly supported by the frame 2 by hinges, and the left and right other vertical rods 33 are provided with handles 36.

The latch device 4 according to the present invention is provided at two upper and lower positions across the other left and right vertical frame 23 and the other left and right vertical rod 33.
Note that the latch device 4 may be provided at one place or at three or more places.
The latch device 4 includes a latch body 4 a provided on the vertical rod 33 and a receiving portion 4 b provided on the vertical frame 23. The latch body 4a may be provided on the vertical frame 23, and the receiving portion 4b may be provided on the vertical rod 33.

  As shown in FIG. 2, the latch body 4 a includes a first case 40, a case 5 having a second case 50 connected to the first case 40 separately from the first case 40, and the first case 40. A latch member 6 provided so as to be freely projectable and retractable therein, a rod-like member provided on the latch member 6, for example, a bolt 7, and an urging means receiving member provided on the rod-like member, for example, a bolt 7 and screwed into the second case 50 And a urging means provided in the second case 50, for example, a coil spring 10 that abuts the nut 8 against the stopper member 9 and urges the latch member 6 to protrude. Yes.

The receiving portion 4b is continuous with the engaging recess 11 with which the latch member 6 engages, and the concrete opening side portion of the engaging recess 11, and the guide 12 that makes it easy to engage the latch member 6 with the engaging recess 11. have.
Then, by rotating the open joinery 3 in the closing direction, the latch member 6 moves along the guide 12 so that it is immersed in the first case 40 against the coil spring 10, and the building concrete 3 Is in the closed position, the latch member 6 protrudes with the coil spring 10 and engages with the engaging recess 11 of the receiving portion 4b, thereby restricting the position of the concrete building 3 to the closed position.

The case body 4a will be described in detail with reference to FIGS.
The first case 40 has a cylindrical shape having a bottom wall 40a that is open at one end and closed at the other end, and an inner peripheral surface thereof is a latch member insertion hole 41 into which the latch member 6 is slidably inserted.
On the outer peripheral surface near the opening of the first case 40, there is an attachment portion 42 for attaching the latch body 4a to the vertical rod 33.
Near the bottom wall 40a of the first case 40, there is a connecting portion 43 to which the second case 50 is connected. The bottom wall 40a has a through hole 44 through which the bolt 7 passes.
An annular recess 45 is formed at the periphery of the through hole 44 in the bottom wall 40a of the first case 40 and is open to the side opposite to the latch member insertion hole 41 (outer surface of the bottom wall). A ring-shaped stopper is formed in the recess 45. The member 9 is fitted and attached. The stopper member 9 is not limited to a ring shape.
The stopper member 9 is made of a cushioning material that is soft such as rubber or soft resin and does not emit metal sound when the metal member collides.
The attachment portion 42 is a plate-like body that protrudes on both sides in the radial direction of the outer peripheral surface of the first case 40, and has attachment holes 46.

  The connecting portion 43 provided in the first case 40 is formed on the bottom wall 40a of the first case 40, and a pair of radial grooves 43a opened in the bottom wall end surface 40a-1, and the groove 43a is continuous with the first groove 40a. One case 40 has a pair of engagement receiving portions 43b formed on the outer peripheral surface.

The second case 50 has a cylindrical shape having a bottom wall 50a that is open at one end and closed at the other end. The inner peripheral surface of the second case 50 is a biasing member insertion hole 51, and a coil is formed in the biasing member insertion hole 51. The spring 10 is inserted, and the nut 8 is non-rotatable and is slidably inserted.
For example, the nut 8 has a polygonal outer peripheral surface, and the urging member insertion hole 51 has a polygonal inner peripheral surface. By inserting the nut 8, the nut 8 does not rotate but slides.
Near the opening end of the second case 50, there is a connected portion 52 for connecting the second case 50 to the first case 40.
The coil spring 10 is provided between the nut 8 and the bottom wall 50 a of the second case 50.

The connected portion 52 has a pair of protruding pieces 53 provided toward the outside in the radial direction near the opening of the outer peripheral surface of the second case 50, and the protruding pieces 53 are fitted in the grooves 43 a of the connecting portion 43. An engaging portion 54 that engages with the above-described engaging receiving portion 43b is provided at the tip of each protruding piece 53 to form an engaging piece.
The engaging portion 54 projects toward one end side from the projecting piece 53 and faces inward in the radial direction.
One end surface 53 a of the protruding piece 53 is continuous with the opening end surface 50 b of the second case 50.

Since it is like this, while fitting a pair of protrusion piece 53 of the to-be-connected part 52 in the groove | channel 43a of the connection part 43, and engaging the engaging part 54 with the engagement receiving part 43b, it is the 1st case 40. The stopper member 9 provided on the bottom wall 40a of the second case 50 is in contact with the opening end surface 50b of the second case 50, and the latch member insertion hole 41 and the biasing member insertion hole 51 communicate with each other through the through hole 44. A case 5 is formed which is hermetically sealed with the case 50.
The stopper member 9 is fitted into the recessed portion 45 of the bottom wall 40a of the first case 40, and the opening end surface 50b of the second case 50 is in contact with the end surface of the stopper member 9 so that the inside of the second case 50 is airtight. The stopper member 9 is surrounded by the first case 40 and the second case 50, and a gap or the like for communicating the stopper member 9 with the outside of the case 5 does not exist in the attachment portion of the stopper member 9 of the case 5.

  Thereby, the collision sound when the nut 8 collides with the stopper member 9 is small, and the collision sound does not propagate to the outside of the case 5 through a gap or the like, and the propagation of the collision sound to the outside of the case can be reduced. .

In this embodiment, the protruding piece 53 of the engaging piece which is the connected portion 52 is fitted in the groove 43a of the connecting portion 43 so that the second case 50 does not rotate with respect to the first case 40. Since they are connected, the second case 50 does not rotate when the latch member 6 is rotated to adjust the protruding amount of the latch member 6.
In this embodiment, since the engaging portion 54 of the engaging piece which is the connected portion 52 engages with the engaging receiving portion 43b of the connecting portion 43, the first case 40 and the second case 50 can be separated. Absent.

  The connecting portion 43 and the connected portion 52 are not limited to those described above, and the first case 40 and the second case 50 are screwed together by forming a male screw and a female screw on the first case 40 and the second case 50. For example, the first case 40 and the second case 50 may be connected with screws, or the first case 40 and the second case 50 may be bonded and connected.

The latch member 6 has a substantially hemispherical distal end portion 60 that engages with the engaging recess 11 of the receiving portion 4b, and a columnar base end portion 61 that is continuous with the distal end portion 60 and is inserted into the latch member insertion hole 41. And an internal space 5 a is formed in the latch member insertion hole 41 between the latch member 6 and the bottom wall 40 a of the first case 40.
A tool fitting recess 62 for rotating a latch member 6 by fitting a tool is formed at the distal end portion 60.
An airtight member, for example, an O-ring 63, is installed on the outer peripheral surface of the base end portion 61 so as to hermetically seal between the latch member 6 and the latch member insertion hole 41, and between the outer peripheral surface of the latch member 6 and the latch member insertion hole 41. The air is prevented from flowing through to the internal space 5a.

The bolt 7 has a screw shaft 70 that passes through the through hole 44 and is screwed with the nut 8, and a polygonal head 71 provided on the screw shaft 70.
The head 71 is fitted into a groove 64 formed in the base end 61 of the latch member 6, and the bolt 7 is connected to the latch member 6 so as not to rotate.

When the latch member 6 moves in the protruding direction and the immersing direction, it has an air circulation portion 13 that communicates the internal space 5a with the space outside the case so that air flows into and out of the internal space 5a.
For example, a concave groove 47 that is continuous in the axial direction is formed in the latch member insertion hole 41 of the first case 40, and a gap is formed between the concave groove 47 and the O-ring 63 of the latch member 6 to form the air circulation portion 13. It is as.
The air circulation portion 13 is not limited to the above-described concave groove 47, and a concave groove that communicates the internal space 5 a with the outside is formed on the outer peripheral surface of the latch member 6. It is good also as the distribution | circulation part 13, and it is good also as the air distribution | circulation part 13 by forming the pore which connects the internal space 5a outside in the 1st case 40. FIG.

As described above, since there is no gap or the like in the portion of the case 5 where the stopper member 9 is attached, the internal space 5a communicates with the space outside the case only by the air circulation part 13, and the air circulation of the air circulation part 13 Since the protrusion speed of the latch member 6 can be set to a desired speed depending on the amount, it is possible to suppress noise caused by the vibration of the building due to the movement of the latch member by sufficiently slowing the protrusion speed of the latch member.
This and the fact that the above-described propagation of the collision sound to the outside of the case can be reduced, so that when the latch device is used as a fitting, it is possible to suppress the sound caused by the latch device sufficiently when the building is opened and closed.

In this embodiment, since the latch member 6 is rotated to change the protrusion amount of the latch member 6, the change amount of the protrusion amount of the latch member 6 due to one rotation of the latch member 6 is set, and the latch It is possible to sense that the member 6 has made one rotation so as to sense a change in the amount of protrusion of the latch member 6.
For example, as shown in FIG. 4, a pin 65 that fits into the groove 47 is provided in the latch member 6 so as to be movable in the radial direction, and the pin 65 is fitted into the groove 47 with a spring (not shown). When the rotation is started, the pin 65 is inserted and removed from the groove 47, and when the latch member 6 rotates once, the pin 65 is fitted into the groove 47 so that one rotation of the latch member 6 can be detected.

  Thus, since the concave groove 47 that forms the air circulation part 13 is used, the configuration is simplified. Note that air flows through a portion where the concave groove 47 and the pin 65 are fitted.

Next, assembly of the latch body 4a will be described.
The latch member 6 provided with the bolt 7 is inserted into the latch member insertion hole 41 of the first case 40, and the bolt 7 penetrates the through hole 44 and protrudes from the bottom wall 40 a of the first case 40 to the outside.
The nut 8 is screwed onto the bolt 7 protruding from the bottom wall 40a of the first case 40, and the nut 8 is brought into contact with the nut stopper 9 so that the protruding amount of the latch member 6 is set to a set value.

  The second case 50 is moved toward the first case 40, the nut 8 is inserted into the biasing means insertion hole 51, and the connected portion 52 is fitted and engaged with the connecting portion 43, thereby the second case. The latch body 4a is assembled by connecting 50 to the first case 40.

The latch body 4a is attached to the vertical rod 33 of the building concrete 3 as follows.
A case fixing portion of the vertical rod 33, for example, an inner vertical plate 38 facing the case supporting portion, for example, the outer vertical plate 38 in the in-plane direction, with the latch body 4a in the mounting hole 37a of the outer vertical plate 37 with the second case 50 as the head. The first case 40 is fixed to the outer vertical plate 37 by inserting the mounting portion 42 into contact with the outer side surface 37b of the outer vertical plate 37 and fixing with the fixing tool 39.
The bottom wall 50a of the second case 50 is in contact with the inner vertical plate 38 of the vertical rod 33, so that the first case 40 and the second case 50 are not separated from each other. The first case 40 and the second case 50 are supported.

  When the latch body 4a is provided on the vertical rod 33 as described above, the overall length of the case 5 (the length between the attachment portion 42 and the bottom wall 50a of the second case 50) L is short, and the second case 50 When the bottom wall 50a does not contact the inner vertical plate 38, a shim or the like can be interposed between the inner vertical plate 38 and the bottom wall 50a.

  When the length L of the case 5 is long and the mounting portion 42 does not contact the outer surface 37b of the outer vertical plate 37, a shim or the like is interposed between the mounting portion 42 and the outer surface 37b of the outer vertical plate 37. Can be touched.

  In this embodiment, the rod-shaped member is a bolt 7, the biasing means receiving member is a nut 8, and the nut 8 is slidably inserted into the biasing means insertion hole 51 of the second case 50 so as to be slidable. By rotating the member 6, the latch member 6 enters and exits so that the amount of protrusion can be changed. However, if the amount of protrusion of the latch member 6 is not changed, the rod-shaped member is a rod and the biasing means receiving member is The pin or ring provided on the rod can be slidably inserted into the biasing means insertion hole 51 of the second case 50.

  In this embodiment, the biasing means is the coil spring 10, but a disc spring or a cylindrical rubber may be used.

  2 ... Frame body, 3 ... Building concrete, 4 ... Latch device, 4a ... Latch main body, 4b ... Receptacle, 5 ... Case, 5a ... Internal space, 6 ... Latch member, 7 ... Bolt (rod-like member), 8 ... Nut (Biasing means receiving member), 9 ... stopper member, 10 ... coil spring (biasing means), 13 ... air circulation portion, 37 ... outer vertical plate (case fixing portion), 38 ... inner vertical plate (case support portion) 40 ... first case, 40a ... bottom wall, 41 ... latch member insertion hole, 43 ... connecting portion, 43a ... groove, 43b ... engagement receiving portion, 44 ... through hole, 50 ... second case, 50a ... bottom wall , 51 ... biasing means insertion hole, 52 ... connected portion, 53 ... projecting piece, 54 ... engaging portion.

Claims (5)

A latch body attached to one of the building elements supported by the frame body so as to be openable and closable; and a receiving portion attached to the other; the latch member of the latch body being urged by an urging means; A latch device for restricting the position of the building concrete to a closed position by engaging with a portion,
The latch body is
A first case having a latch member insertion hole into which the latch member is inserted and a second case having an urging means insertion hole into which the urging means is inserted. A case connected so that the insertion hole communicates;
Biasing means inserted into the biasing means insertion hole;
A latch member inserted into the latch member insertion hole so as to protrude and retract, and
A rod-shaped member provided on the latch member;
An urging means receiving member attached to the rod-shaped member and received in the urging means insertion hole of the second case and receiving the urging force of the urging means;
An air circulation part that communicates the internal space of the latch member insertion hole defined on the second case side by the inserted latch member and the space outside the case;
A stopper member provided between the first case and the second case so that at least the inside of the second case is hermetically sealed and a buffer member that restricts the movement of the urging means receiving member in the urging direction. A latch device characterized by the above. The first case and the second case have a substantially cylindrical shape having a bottom wall opened at one end,
Forming a through hole through which the rod-shaped member penetrates in the bottom wall of the first case, and providing a stopper member around the through hole in the outer surface of the bottom wall of the first case;
A case in which the opening end surface of the second case is in contact with a stopper member to connect the first case and the second case, and the latch member insertion hole of the first case and the biasing means insertion hole of the second case communicate with each other through the through hole. The latch device according to claim 1.   The first case and the second case are provided with a connecting portion and a connected portion that are engaged so that a stopper member provided on the bottom wall of the first case and the opening end surface of the second case are in contact with each other. The latch device according to claim 2. The connecting portion has a groove formed on the bottom wall of the first case and an engagement receiving portion formed on the outer peripheral surface,
The latch device according to claim 3, wherein the coupled portion includes a locking piece that fits into the groove and engages with the engagement receiving portion. The latch body of the latch device according to any one of claims 1 to 4, wherein the latch body is provided in the building body, and the receiving portion is provided in the frame, so that the latch member of the latch body is engaged with the receiving portion and the building body is closed It is a joinery that is restricted to the position,
A joinery characterized in that the first case of the latch body is fixed to a case fixing part of a building concrete, and the second case is brought into contact with the case supporting part of the building concrete, thereby providing the latch body.

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