WO2008056573A1

WO2008056573A1 - Lock device

Info

Publication number: WO2008056573A1
Application number: PCT/JP2007/071143
Authority: WO
Inventors: Naohiro Shibata; Ryuhei Nishida
Original assignee: Nifco Inc.
Priority date: 2006-11-06
Filing date: 2007-10-30
Publication date: 2008-05-15
Also published as: JP4836190B2; TW200827524A; JP2008115626A

Abstract

A lock device used to lock an open/close body (8) to a body (9) in a closed position. The lock device at least has a button (3) and latch member (4) arranged on the case (2) so as to be individually slideable. When the button (3) is pressed to make it recede inside the case, the latch member (4) is switched from a lock position where it locks the open/close body (8) to an unlock position where the latch member (4) is released from the open/close body (8). By pressing of the button (3) against urging force, the button (3) is brought from an initial position in which it projects to the outside of the case to a pressed position in which the button (3) is made to recede inside the case. The lock device has holding means (5) for holding the button (3) at the pressed position and releasing the hold to return the button (3) to the initial position. The release of the hold is made in operative association with switchover operation of the open/close body (8) from the open position to the close position.

Description

Specification

Locking device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a locking device that locks an opening / closing body in a closed state with respect to a main body, and more particularly, to a locking device that releases locking by pushing a button.

Background art

FIGS. 7A and 7B show a lock device disclosed in Patent Document 1. FIG. The locking device 1 includes a button 3 and a latch member 4 that are slidably disposed in a case (housing) 2, and an urging force that urges the button and latch member 4 in a direction protruding from the case 2. Parts 5 and 6. Here, the case 2 has a rectangular frame portion 11 and a cylindrical portion 12 on the back side of the frame portion. The button 3 is provided on the operation unit 30, the frame-like part 31 protruding from the operation part 30, the shaft part 32 protruding from the lower surface of the frame-like part 31, and the inner surfaces on both sides of the frame-like part 31. And a cam projection (not shown). The latch member 4 includes an engaging portion 40 that protrudes forward from the base, a shaft 43 that protrudes rearward from the base, and a cam recess (not shown).

[0003] The above structure is used, for example, when the opening / closing body 8 is locked in a closed state with respect to the storage body 7, and the button 3 is pushed against the urging force of the urging member 5 and retracted in the case. As a result, the latch member 4 protrudes out of the case and locks the opening / closing body 8. The latch member 4 is retracted into the case from the locking position in FIG. Switch to the unlocked position in (b). Then, the opening / closing body 8 is switched from the closed state in which the opening of the storage body 7 is closed to the open state in which the opening is opened by the urging force S. When the pressing force is released, the button 3 is protruded out of the case 2 by the urging force of the urging member 5 and returned to the initial position in FIG. 7 (a) again. In this structure, the cam convex portion and the cam concave portion described above form a cam mechanism for operatively connecting the button 3 and the latch member 4, and the push force of the button 3 is efficiently transmitted to the latch member 4 to be latched. The switching characteristics of the members are kept good.

Patent Document 1: Japanese Unexamined Patent Application Publication No. 2004-44114

Disclosure of the invention Problems to be solved by the invention

[0004] The locking device 1 described above is normally disposed in the vicinity of the opening of the storage body 7, and the latch member 4 has the step engaging portion 40 provided on the corresponding distal end side of the opening / closing body 8. Disengage from 8a. In this structure, the gap between the operating portion 30 and the engaging portion 40 or the gap on the side of the case 2 where the engaging portion 40 protrudes below the operating portion 30 is in the closed state of the opening / closing body 8. Then, it becomes difficult to see due to the thickness of the opening / closing body, but when the opening / closing body 8 is in an open state! /, It is exposed to the opening side of the storage body 7 and looks bad. This is because the button 3 is in an initial position protruding upward from the case 2 due to the urging force unless the button 3 is pushed.

[0005] Therefore, an object of the present invention is to solve the above-described problems and to improve the appearance by suppressing the above-mentioned gap as small as possible even when the opening / closing body is switched to the open state. Means for solving the problem

[0006] In order to achieve the above-described object, the present invention is used when the opening / closing body is locked in a closed state with respect to the main body, and has at least a button and a latch member that are slidably arranged on the case. When the button is pushed and retracted into the case, the latch member is locked to the locking position force that locks the opening / closing body, and to the unlocked position that releases the locking to the opening / closing body. The switch is switched to a lock device, and the button is held in a pushed-down state retracted into the case by a pushing operation against an urging force from an initial position protruding from the case, and the opening / closing body A holding means for releasing the holding and returning the button to the initial position in conjunction with switching from open to closed is provided. The above-mentioned main body includes various consoles and equipment panels. The opening / closing body includes a lid, a lid, a door, a cover, and an armrest that also serves as a lid.

[0007] The present invention described above is preferably embodied as in the following aspects. That is,

(A) The holding means includes a holding member disposed in a direction substantially intersecting the sliding direction of the button, and a biasing member that biases the holding member in a direction protruding from the case. This is the configuration.

(Ii) The holding member contacts the corresponding portion of the opening / closing body in the process of switching the opening / closing body from the open state to the closed state, and is retracted by being piled on the urging force of the urging member to hold the button And the urging force of the urging member is changed from the pressed state to the depressed state. In this configuration, the initial position is restored.

(U) One end of the case is pivotally supported, and the other end is slidably connected to the button. The transmission member is interposed between the button and the transmission member. The button is pushed down with rotation.

The invention's effect

[0008] In the present invention, for example, when the button is retracted into the case by a pressing operation in order to release the lock on the opening / closing body, the holding means holds the pressed state after the retracting. That is, in this structure, even if the latch member releases the lock on the opening / closing body by pushing the button, and the opening / closing body is switched to the open state, the button does not return to the initial position protruding out of the case and is pushed down. Therefore, the gap between the button operating portion and the latch member side engaging portion, or the gap on the side of the case where the engaging portion protrudes below the button operating portion can be kept small. This makes it difficult to see the inside of the gap and keeps the appearance good.

In the aspect (a), since the holding means is the holding member and the urging member, it can be easily implemented. On the other hand, in the mode (ii), the holding of the holding member with respect to the button is released by switching the opening / closing body from the open state to the closed state, and the button is returned to the initial position by the biasing force. It does not require any special operation due to the addition, and can be used easily. In the (u) mode, since the transmission member pivotally supports one end of the case and the other end is slidably connected to the button, for example, when releasing the latch member, On the other hand, even if the button is pressed obliquely, the button can be efficiently pressed via the transmission member. Brief Description of Drawings

FIG. 1 is a top view of a locking device according to an embodiment of the invention.

FIG. 2 (a) is a side view of the locking device, and (b) is a front view of the locking device.

FIG. 3 is a schematic exploded view for explaining the relationship between main members of the locking device.

FIG. 4 is a schematic view showing a relationship among a case, a latch member, and a button of the locking device.

[FIG. 5] (a) and (b) are schematic cross-sectional views showing a state when the locking device is switched between a locked state and a locked state.

[Fig. 6] (a) and (b) are when the locking device is switched between the unlocked state and the locked state again. FIG.

7] (a) and (b) are explanatory views showing a locking device of Patent Document 1. [FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6B. Fig. 1 and Fig. 2 (a) (b) show the top, side and front of the locking device, Fig. 3 shows the main members in an exploded state, and Fig. 4 (a) and (b) show the case, button and latch member. 5 (a) (13) and FIG. 6 (&) (b) show the operation of the locking device corresponding to the cross-sectional view taken along the line AA in FIG. In the following description, the outline, structure, and operation will be described in detail.

(Outline) The locking device 1 according to the embodiment includes a button 3 and a latch member 4 that are slidably arranged with respect to the case 2, and a direction in which the button 3 and the latch member 4 protrude from the case 2, respectively. Urging members 11, 12 for urging the button 3, and pushing the button 3 against the urging force of the urging member 11 to retract it into the case 2 (retreating to increase the portion entering the case) , The latch member 4 is piled on the urging force of the urging member 12 and is retracted into the case 2 from the locking position where the latching member 8 is locked, and the locking to the opening / closing member 8 is released. It is a type that can be switched to the non-locking position. The contrivance point is that the button 3 is kept in the pushed-down state retracted into the case by the pushing operation against the urging force from the initial position protruding from the case 2 and the opening / closing body 8 is switched from the open state to the closed state. The holding means for releasing the holding and returning the button 3 to the initial position in conjunction with the holding means is configured by the holding member 5 and the urging member 13.

[0013] Here, main constituent members include a case 2, a button 3, a latch member 4, a holding member 5, a transmission member 6, a cover 7, and biasing members 11 to 13; . The case 2, button 3, latch member 4, holding member 5, transmission member 6 and cover 7 are all resin molded products, and the urging members 1;! To 13 are made of metal. However, the material is not limited to this. The use is suitable for the opening / closing body 8 such as a lid or door for opening / closing the upper opening of the storage body 9 or the device body. The opening / closing body 8 in FIGS. 5 (a) and 5 (b) is assumed to be an armrest that also serves as a lid that opens and closes the opening of the storage body 9, and is opened by an urging force S (see FIGS. 5 (a) and 5 (b)). It is urged in the direction, piled on the urging force, rotated in the closed state, and locked in the closed state by the lock device 1.

(Structure) Case 2 includes a button 3 inserted from above, as shown in FIGS. 1 to 4 (b), The latch member 4 inserted from the front side is arranged in a substantially intersecting state, and the holding member 5 is slidably arranged in the same direction as the latch member 4. Therefore, the case 2 includes a space portion 20 that receives the button 3 from the upper opening, a cylindrical portion 21 that vertically penetrates the inner bottom surface of the space portion 20, and outer surfaces of both side walls that define the space portion 20. The mounting plate portion 22 projecting downward from the middle of the upper and lower sides, the guide groove portion 23 extending in the front-rear direction on the upper side of the plate portion 22, and both side walls defining the space portion 20. A fitting hole 24 extending in the front-rear direction is provided.

Here, the space portion 20 is formed of a substantially rectangular solid having a size corresponding to the button 3. The cylindrical portion 21 is partitioned by a cylindrical groove 20a provided on the inner bottom surface of the space portion 20. Each plate portion 22 has a mounting hole 22a, and is fixed to a corresponding portion of the storage body 9 by a stopper inserted from the mounting hole 22a. Each guide groove 23 is provided between the upper and lower projections 29a and 29b, and slidably fits a corresponding rail 46 of the holding member 5 described later. Each fitting hole 24 faces, and a corresponding end portion of a pin 35 described later is slidably fitted.

[0016] Further, the case 2 has a recess 25 on the rear wall side at the upper end of both side walls, a communication hole 26 penetrating in the front-rear direction on the upper side of the front and rear walls, and a rear side from the upper side of the rear wall. And a pair of support portions 28, 28 projecting obliquely upward from the rear wall and the wall portion 27. Each recess 25 restricts the button 3 from being pushed down. The front and rear communication holes 26 support the latch member 4 in a slidably threaded state. On the upper surface of the wall portion 27, there are provided a locking piece portion 27a protruding to the middle portion on the rear side, and locking piece portions 27b, 27b protruding to both side corner portions on the rear side! /, The Each of the support portions 28 has an engaging hole 28a facing each other.

[0017] As shown in FIGS. 3 to 5 (b), the button 3 includes a frame-shaped portion 30 disposed in the space portion 20, a shaft portion 31 protruding from the lower surface of the frame-shaped portion 30, and a frame. The control piece 32 provided on the rear side of the frame-shaped portion 30, the cam hole 33 penetrating the opposite side walls of the frame-shaped portion 30, and the lateral groove 34 above the cam hole 33 are provided. is doing.

[0018] Here, the frame-like portion 30 is opened in the front-rear direction, the front side is thinned from the top to the substantially middle portion, and the rear side is thinned from the top to the restricting piece portions 32 on both sides. For this reason, the lower part of the frame-shaped part 30 protrudes forward and backward compared to the upper part (this shape forms a step 30a in FIG. 3), and the lower part slides relative to the space part 21. Can be fitted. The shaft portion 31 can be passed through the tube portion 21. The restricting piece 32 protrudes to both sides of the frame-like part 30. The cam hole 33 is composed of an inclined hole 33a that is directed from the rear upper side to the front lower side, and a horizontal hole 33b that extends horizontally rearward from the lower end of the inclined hole 33a.

The above button 3 is biased when, for example, the lower end of the shaft portion 31 is inserted into the tubular portion 21 from the aspect in which the upper side of the coil spring as the biasing member 11 is disposed around the shaft portion 31. The lower side of the member 11 is arranged in the cylindrical groove 20a, and is urged and moved upward by the urging member 11, so that the upper side of the frame-like part 30 is greatly protruded upward from the space part 20.

[0020] As shown in Figs. 3 and 5 (a) and (b), the latch member 4 has an elongated arm shape, and is provided at the distal end and protrudes forward from the top to the bottom. The inclined surface 40, the through hole 41 provided in the substantially middle part in the front and rear direction and penetrated in the plate width direction, and one end of the coil spring which is provided on the rear end side and is the biasing member 12 are inserted and locked. (See Fig. 5 (a) and (b)). The length can be switched between an engagement position protruding forward of the case and a non-engagement position retracted in the case in a state where the length is fitted in each communication hole 26 provided in the front and rear walls of the case 2. Dimensions.

[0021] In the latch member 4 described above, for example, from the state in which the button 3 is assembled in the case 2 as described above, the rear end side is the through-hole 26 on the front wall of the case, the opening of the button 30, the rear side of the case After passing through the through hole 26, one end of the urging member 12 is inserted and locked in the recess 42, and the other end of the urging member 12 is locked to the locking piece 27a. From this state, the button 3 and the latch member 4 are operatively connected via the pin 35 fitted into the fitting hole 24 of the case 2. In other words, the pin 35 has, for example, the state in which the button 3 and the latch member 4 are assembled in the case 2 as described above, and one end side is one fitting hole 24 on the case side wall, one cam hole 33 on the button side, and the latch portion. It is passed through the material through hole 41, the other cam hole 33 on the button side, and the other fitting hole 24 on the case side wall. Then, the button 3 and the latch member 4 are operatively connected via the pin 35 as shown in FIG. 5 (a). For example, when the button 3 is pressed downward, the pin 35 is moved along the inclined hole 33a of the cam hole 33 to the case. The side fitting hole 24 escapes from the front to the rear, and the latch member 4 is switched from the locking position to the non-locking position by sliding the pin 35.

[0022] As shown in Figs. 3 to 5 (b), the holding member 5 has a shape that is slidable back and forth with respect to the case 2 with the case 2 disposed inside, and is substantially U-shaped. Lower frame part 45 and lower frame part 45 The rail part 46 provided on the inner side of the two pieces, the hook part 47 erected on the front side of both pieces constituting the lower frame part 45, and the lower frame part 45 It has an upper frame portion 48 that is erected on the rear side of both of the constituting pieces, and a support shaft 49 that protrudes rearward from the rear surface on both sides of the upper frame portion 48. . Among these, each rail portion 46 is opposed to both pieces of the lower frame portion 45. The latching portion 47 is formed as an inclined slope that is upward as the front end surface 47a goes rearward, and the upper protrusion that defines the guide groove portion 23 with the rail portion 46 fitted to the guide groove portion 23. It is slidably hooked on the part 29a. The upper frame portion 48 has a contact portion 48a that connects the vertical pieces on both sides.

[0023] The holding member 5 described above is incorporated in the case 2 so as to be slidable back and forth along the guide groove portion 23 by fitting each rail portion 46 to the corresponding guide groove portion 23. In this case, the latching part 47 is hooked by the upper protrusion part 29a and maintains good sliding characteristics. In addition, the holding member 5 has a contact portion 48a disposed on the wall portion 27 in a state where one end side of the coil spring which is the urging member 13 is supported by the support shafts 49 on both sides, and the urging member 13 When the end is locked to the locking piece portion 27b, the biasing member 13 is slid forward until the contact portion 48a hits the corresponding portion of the button side frame-shaped portion 30. Conversely, when the holding member 5 is pushed rearward against the urging force of the urging member 13, the holding member 5 moves backward until the abutting portions 45 a connecting both sides of the lower frame portion 45 hit the front wall of the case 2. Is slid.

[0024] The transmission member 6 has a substantially rectangular plate shape in which a U-shaped notch 6a that escapes the frame-shaped portion 30 is provided on the front side, and a U-shaped notch 6b that escapes the pair of support portions 28 is formed on the rear side. The notch 6a is defined! /, And the engagement hole 6c and the notch 6b are defined by being penetrated to the front side of the two pieces. And an engaging hole 6d which is penetrated. The cover 7 is a member that improves the appearance appearance. As inferred from FIGS. 1 and 2 (a) and (b), the cover 7 is attached to the transmission member 6 by an appropriate method, and when viewed from above, the case 2, the button 3, It is a member that covers the holding member 5 and the like so as not to be seen as much as possible.

[0025] The transmission member 6 described above includes, for example, an upper portion of the frame-shaped portion 30 disposed inside the notch 6a, and after positioning each engaging hole 6c in the corresponding lateral groove 34 of the frame-shaped portion 30, 36 is passed through the one-way engagement hole 6c, the one horizontal shaft 34, the other horizontal shaft 34, and the other engagement hole 6c, so that the front side is slidably connected to the horizontal groove 34 of the frame-shaped portion 30. Also, the transmission member 6 is located inside the notch 6b. After the left and right support portions 28 are arranged and each engagement hole 6d is positioned in the corresponding engagement hole 28a of the support portion 28, the pin 37 is in the one-side engagement hole 6d, the one engagement hole 28a, and the other engagement By passing through the hole 28a and the other engagement hole 6d, the rear side is pivotally supported by the case side support portion 28. In this structure, when the transmission member 6 is pushed directly or through the cover 7, the button 36 is pushed down with the pin 37 side as a fulcrum while the pin 36 side moves in the lateral groove 34. This is a configuration that efficiently transmits the pressing force in the oblique direction as downward stress to the button 3 via the transmission member 6.

(Operation) The main operation of the locking device 1 will be described in detail with reference to FIGS. 5 (a) (b) and 6 (a) (b). 5A, 5B, and 6A, 6B, the locking device 1 is attached to the vicinity of the opening of the storage body 9 via the plate portion 22 and the mounting hole 22a. For example, the open / close body 8 is connected at its right end to a corresponding portion of the storage body 9 via a hinge (not shown) and is urged in the opening direction by the urging force S.

FIG. 5 (a) shows the closed state of the opening / closing body 8, in which the latch member 4 of the locking device 1 is disposed at the locking position and the corresponding part of the opening / closing body 8 is locked. In this locked state (locked state), the button 3 is in the initial position where it is raised by the biasing member 11 and protrudes most from the case 2. The latch member 4 is in a locking position where it is projected forward by the biasing force of the biasing member 12. The holding member 5 is slid forward by the urging force of the urging member 13 until the abutting portion 48a is abutted against the corresponding portion of the frame-shaped portion 30 and is regulated. Further, the pin 35 is moved to the lower side of the inclined hole 33a constituting the button side cam hole 33 by raising the button 3 and moving the latch member 4 forward. In this structure, the latching force of the latch member 4 does not depend on the spring pressure of the urging member 11, but depends solely on the spring pressure of the urging member 12, so that the latching force on the opening / closing body 8 is reduced. When it is desired to increase or weaken, an urging member 12 having a spring pressure corresponding to the increase or decrease may be used.

FIG. 5B shows a state in which the cover 7 is pushed and operated in the direction of the arrow in order to switch the opening / closing body 8 from the closed state to the open state. By this pushing operation, the button 3 is pressed downward via the transmission member 6 and is switched from the initial position to the pushed-down state in which the button 3 is retracted in the case against the urging force of the urging member 11. In the latch member 4, the pin 35 is slid backward (in the direction of retracting into the case) against the urging force of the urging member 12 by the force locus of the button side cam hole 33, that is, the inclined hole 33a. Switch to the locking position. As a result, the opening / closing body 8 As shown in the figure, the latch member 4 is unlocked and rotated from the closed state to the open state by the biasing force S described above. Of course, the opening / closing body 8 may be manually rotated to the open state instead of the biasing force S. In this structure, when the button 3 is further pressed from the same figure, the pin 35 hits the upper end of the inclined hole 33a of the force hole 33, and the restricting portion 32 hits the recess 25 to be restricted.

FIG. 6 (a) shows an open state of the opening / closing body 8, in which the pressing force is released by releasing the hand from the cover 7. In this structure, when the pushing force against the cover 7 is released, the button 3 is pushed upward again by the urging force of the urging member 11 to return to the initial position. However, such movement is caused by the holding member 5. Blocked and held down. That is, since the holding member 5 is urged forward by the urging members 13 on both sides shown in FIGS. 4 (a) and 4 (b), the button 3 is pushed down, and the protruding amount of the frame-like portion 30 is reduced. When facing the reduced upper part, that is, above the step 30a, the contact part 48a is slid forward until it comes into contact with the step 30a of the frame 30 as shown in FIGS. 5 (b) to 6 (a). . In other words, in this structure, when the pressing force on the cover 7 is released, the button 3 is slightly raised by the urging force of the urging member 11, but the contact portion 48a of the holding member 5 is engaged with the step 30a, Block further increase of button 3. That is, in this structure, when the opening / closing body 8 is in the open state, the button 3 (and the transmission member 6 and the cover 7) are held down by the holding member 5, so that the cover 7 shown in FIG. The gap xl between the front side (button operation part) and the front upper end side (latch member side engagement part) of the case 2 is considerably smaller than the gap X in the closed state shown in Fig. 5 (a). External power Maintains good appearance when it is difficult to see.

Next, from the open state of the opening / closing body 8 shown in FIG. 6 (a), the opening / closing body 8 is again rotated in the closing direction against the urging force S. Then, the latch member 4 and the holding member 5 are brought into contact with the front end surface 47a which is the inclined surface 40 of the front end side force latch member 4 of the opening / closing body 8 and the inclined surface of the holding member 5 from the front to the rear. As shown in FIG. 6 (b), the latch member 4 is piled to the biasing force of the biasing member 12, and the holding member 5 is piled to the biasing force of the biasing member 13 as shown in FIG. While retracting in the avoiding direction, the retaining of the button 3 is released by the retracting of the retaining member 5. That is, in this structure, for example, after the opening / closing body 8 is rotated slightly more than the normal closed position as shown in FIG. 6 (b), it is switched to the normal closed position by the biasing force S. During this time, the button 3 is released from being held by the holding member 5 and is again returned to the initial position by the urging of the urging member 11, and the latch member 4 and the holding member 5 are released from the pressing force of the opening / closing body 8, respectively. Therefore, it is again projected forward by the urging force of the urging members 11 and 12, and the opening / closing body 8 in FIG. 5 (a) is closed.

It should be noted that details of the present invention can be variously changed as necessary as long as the requirements specified in the claims are provided. As an example, the cover 7 and / or the transmission member 6 is omitted, and an operation unit is formed on the upper part of the button. It should be noted that the entire contents of the specification, claims, drawings, and abstract of Japanese Patent Application No. 2006-300532 filed on November 6, 2006 are cited herein, and the disclosure of the specification of the present invention is disclosed. As it is incorporated.

Claims

The scope of the claims

[1] Used to lock the open / close body in a closed state with respect to the main body, and has at least a button and a latch member that are slidably disposed on the case, and pushes the button to retract into the case In the locking device, the latch member can be switched from a locking position where the latch member is locking the opening / closing body to a non-locking position where the locking with respect to the opening / closing body is released.

The button is held in a depressed state retracted into the case by a pushing operation against an urging force from an initial position protruding out of the case, and the opening / closing body is switched from an open state to a closed state in conjunction with the switching operation. A locking device comprising: holding means for releasing the holding so that the button can be returned to the initial position!

[2] The holding means includes a holding member disposed in a direction substantially intersecting the sliding direction of the button, and a biasing member that biases the holding member in a direction protruding from the case. The locking device according to claim 1, wherein

[3] In the process of switching the opening / closing body from the open state to the closed state, the holding member comes into contact with a corresponding portion of the opening / closing body and is retracted by staking the urging force of the urging member to release the holding on the button 3. The locking device according to claim 2, wherein the button is returned to the initial position from the depressed state by the urging force of the urging member.

[4] It has a transmission member interposed between the button in a state where one end is pivotally supported on the case and the other end is slidably connected to the button, and the transmission member is rotated by a pressing force. 4. The locking device according to claim 1, wherein the button is pushed down with movement.