TW202338197A - Locking device including a fitting portion, a support portion and a latch main body - Google Patents

Abstract

The present invention provides a locking device (10) that can close an opening and closing door (3) configured to be opened and closed along a left-to-right direction with a good operability. The locking device includes a fitting portion (22) formed based on a striker (20) mounted on the opening and closing door and a striker head (21) adjacent to the striker and at a front end. The locking device also includes a support portion (24) configured to support the striker head on at least one side in a width direction of the fitting portion. A latch main body (30) on a main body (2) forms a thickness direction guide slope (32f) that guides along a thickness direction for the support portion of the striker at a position on the thickness direction in an insertion area (32e) at a center of a latch recess (32c). Therefore, even when the position of the striker deviates in the thickness direction of the striker, the striker can be guided between a pair of clamping parts by the thickness direction guide slope, thus preventing deterioration of the operability.

Description

Locking device

A locking device according to the present invention is used to maintain a closed state of an opening and closing door whose left and right ends are axially supported by a main body.

Among home appliances, there are many home appliances in which a storage chamber is formed inside a main body and the entrance of the storage chamber is opened and closed with a swing door-type opening and closing door. For example, in a clothes dryer, a storage chamber for drying clothes is formed inside the main body. After opening a swing door type opening and closing door to put clothes into the storage chamber, the opening and closing door is closed and the clothes are dried. Moreover, in oven cookers, grill cookers, etc., a storage chamber for heating food is formed inside the main body. After opening the swing door type opening and closing door to put the cooking food into the storage chamber, the opening and closing door is closed. Turn off and start heating.

Among such opening and closing doors, there are opening and closing doors in which the lower end of the door is pivotally supported and opens in the up-down direction, and there are opening and closing doors in which either the left and right ends of the door are pivotally supported and open in the left and right direction. In the case of a door that opens in the up and down direction, in order to prevent the door from opening by itself due to its own weight, springs are often used to force the door in the closing direction. Opening and closing doors do not open by themselves, and most use a locking device.

The latch device includes a latch main body attached to a main body of a home appliance or the like, and a striker attached to an opening and closing door. A pair of clamping parts for clamping the striker is mounted inside the latch body, and the clamping parts are biased toward each other by the force of the spring. Moreover, the striker has a shape protruding from the opening and closing door, and is installed at a position where the front end comes between the pair of clamping parts when the opening and closing door is closed. Furthermore, a pair of recessed portions are formed on both sides of the striker pin. In addition, when the opening and closing door is closed, the striker pin enters between the pair of clamping parts against the force of the spring, and the pair of clamping parts fit into the recessed parts formed on both sides of the striker pin. As a result, the striker attached to the opening and closing door is clamped by the latch body on the main body side, so that the opening and closing door can be held in a closed state. Moreover, when the opening and closing door is opened, the striker can be pulled out from between the pair of clamping parts against the force of the spring, so that the opening and closing door can be opened.

In such a locking device, a locking device arranged in such a way that a smaller protruding portion protrudes from the front end of the striker is also proposed. In addition, the locking body is also pre-set with a fitting hole for the protruding portion to fit into. When the striker is held by the clamping portion of the striker body, the convex portion of the front end of the striker is fitted into the fitting hole of the striker body (Patent Document 1). If such a latch device is used for an opening and closing door, the convex portion at the front end of the striker fits into the fitting hole of the latch body, thereby preventing the door from shaking relative to the main body. [Prior technical literature] [Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 2000-192713

[Technical problem to be solved by the invention]

However, the proposed conventional lock device has a problem in that the operating feeling when closing the opening and closing door that opens and closes in the left-right direction may become poor. The reason is as follows. First, in a door that opens and closes in the left-right direction, the entire weight of the door is applied to the shaft support portion of the door, so the shaft support portion is easily deformed. In addition, since the striker pin is attached to the door at a position opposite to the side on which the door is pivotally supported, the distance from the shaft-supporting portion of the door to the striker becomes larger. Therefore, even if the shaft support portion is slightly deformed, the position of the striker will change greatly, and when the door is closed, the position of the striker will shift from the pair of clamping portions of the latch body. As a result, there is a case where the striker cannot smoothly enter between the pair of clamping parts of the latch body, resulting in impaired operational feel.

The present invention was made to solve the above-mentioned problems of the prior art, and an object thereof is to provide a latch device that can close an opening and closing door that opens and closes in the left and right directions with a good operating feel. [Technical means]

In order to solve the above problems, the lock device of the present invention adopts the following structure. Right now, A locking device for keeping a door in a closed state, with either of its left and right ends axially supported by a main body. The locking device is provided with a striker pin, the base of which is installed on either the main body or the door. The striker protrudes from the base; and the latch body is installed on either the body without the striker or the opening and closing door, and is equipped with a lock body that is mounted on both sides when the opening and closing door becomes the closed state. A pair of clamping parts clamping the striker is characterized by: This pin has: The striker head is formed at the front end of the striker, and the size in the thickness direction gradually increases from the front end toward the base end of the striker and then decreases, and the thickness direction is the portion held by the pair of clamping parts The direction of clamping from both sides; A fitting portion is formed at a position adjacent to the striker head on the base end side for the pair of clamping portions to fit from both sides in the thickness direction, and its dimensions in the width direction are formed as A size larger than a size of the clamping portion in the width direction, which is a direction orthogonal to the thickness direction and the protruding direction of the striker pin; and a support portion formed on at least one side of the fitting portion in the width direction and supporting the striker head from at least that side, The lock body has: a latch recess formed on the side facing the striker; and A pair of biasing springs, with respect to the insertion area of the striker set at the center of the lock recess, and the pair of clamping portions mounted on both sides in the thickness direction toward the insertion area. Apply force in the direction of The pair of clamping parts is mounted on the lock body in a state where the front end portions of the clamping parts protrude inward of the inserted area, In the lock recess, thickness direction guide slopes for guiding the striker head from the thickness direction toward the clamping portion are formed at positions on both sides in the thickness direction relative to the inserted region.

In the lock device of the present invention described above, the striker is pre-installed on either the main body or the opening and closing door, and the lock body is pre-installed on the other one of the main body and the opening and closing door. A pair of clamping parts that clamp the striker pin sideways. A fitting portion into which the front end portion of the clamping portion is fitted is formed on the striker at a position adjacent to the striker head of the front end, and a supporting striker is preliminarily formed on at least one side of the fitting portion in the width direction. The support portion of the pin head. In addition, an insertion area for inserting the striker pin is set in the center of the lock recess formed on the side of the latch body facing the striker pin, and the front end portions of the pair of clamping parts protrude into the insertion area. The state is carried out. In addition, thickness direction guide slopes are formed on both sides of the inserted region in the thickness direction, and the thickness direction guide slopes guide the impact pin head from the thickness direction toward the clamping portion.

In this way, even if the position of the striker deviates in the thickness direction of the striker relative to the latch body when the opening and closing door is closed, the striker can be deflected by the thickness direction guide slope provided on the latch body side. The pin is smoothly guided between the pair of clamping parts, and as a result, it is possible to prevent the operation feeling from deteriorating.

Furthermore, in the lock device of the present invention described above, the striker head may be supported by a support portion provided on at least one side of the striker head in the width direction, and a width may be formed at the front end of the support portion. The direction guide bevel is used to guide the striker in the width direction toward the inserted area when the striker is inserted into the insertion area of the lock body.

In this way, even if the position of the striker deviates in the width direction relative to the latch body, the width direction guide slope can be used to guide the striker toward the insertion area when closing the opening and closing door. Therefore, the operation feeling can be prevented. worsening situation.

Furthermore, in the lock device of the present invention described above, the shape of the striker head and the shape of the front end portion of the clamping portion (the clamping portion of the portion protruding into the insertion area) may be as follows: shape. First, the striker head is formed with: an insertion-side sliding surface that slides relative to the front end portion of the clamping portion when the striker is inserted into the insertion area of the lock body; and a withdrawal-side sliding surface. , when the striker is pulled out from the inserted area, the pull-out side sliding surface slides relative to the front end portion of the clamping portion. In addition, the front end portion of the clamping portion is formed with: an insertion-side sliding surface that faces the insertion-side sliding surface of the striker head when the striker is inserted into the insertion area; and a pull-out side sliding surface. The side sliding surface slides relative to the extraction side sliding surface of the striker head when the striker is pulled out from the inserted area. In addition, the inclination angle of the insertion-side sliding surface and the inserted-side sliding surface with respect to the insertion direction of the striker may be smaller than the inclination angle of the extraction-side sliding surface and the extracted-side sliding surface with respect to the extraction direction of the striker pin. angle.

In this way, the force required to extract the striker pin from between the pair of clamping parts is greater than the force required to insert the striker pin between the pair of clamping parts. Therefore, when the opening and closing door is closed, the striker can be inserted with a light force to keep the opening and closing door in the closed state, but when the opening and closing door is opened, a certain degree of force is required, so it is possible to prevent the opening and closing door from being accidentally opened. condition.

Furthermore, in the lock device of the present invention described above, the thickness direction guide slope formed in the lock recess and the inserted side sliding surface of the clamping portion may form a continuous slope when viewed in the width direction.

In this way, when the opening and closing door is closed, the striker guided by the thickness direction guide slope can smoothly move to the inserted side sliding surface of the clamping portion. Therefore, the operation feeling when closing the opening and closing door can be made into a good operation feeling without a step feeling or a hooking feeling.

Furthermore, in the above-described locking device of the present invention, the lock device may be fastened to both sides in the thickness direction of the inserted region and at positions offset in the width direction with respect to the pair of clamping parts. , thickness direction guide slopes are formed on both sides in the width direction, and are not formed at positions that are also both sides in the thickness direction with respect to both sides of the inserted region in the thickness direction and with respect to the pair of clamping parts. Thickness direction guide bevel.

In this way, the contact area between the striker pin and the guide slope in the thickness direction becomes smaller. Therefore, the striker can be smoothly guided to the insertion area, and the operating feeling when closing the opening and closing door can be improved.

FIG. 1 is an explanatory diagram of the clothes dryer 1 equipped with the lock device 10 of this embodiment. The clothes dryer 1 includes a cube-shaped main body 2 in which a large input port 2a is opened on the front surface, and an opening and closing door 3 that opens and closes the input port 2a. The opening and closing door 3 is a swing door type opening and closing door whose left side is pivotally supported by the main body 2 when viewed from the front and opens and closes in the left-right direction. A handle 3a is formed on the right side of the opening/closing door 3. When the handle 3a is pulled forward, the opening/closing door 3 rotates around the left axis support position, and clothes can be put in through the insertion port 2a.

The main body 2 is mounted with the latch main body 30 constituting the latch device 10 of this embodiment at a position adjacent to the right side of the insertion port 2a when viewed from the front. In addition, a concave-shaped latch recess 32c is formed in the center of the latch main body 30, and a pair of clamping parts 33 are mounted on the back side of the latch recess 32c at positions facing each other in the up-down direction. This will be described in detail later. .

A member called a striker 20 constituting the latch device 10 of this embodiment is protrudingly provided on the right side of the back surface (the surface facing the main body 2 ) of the door 3 . The striker pin 20 is installed at a position inserted into the latch recess 32 c of the latch body 30 when the opening and closing door 3 is closed. The detailed shape of the striker pin 20 will be described later. In addition, the striker 20 inserted into the latch recessed portion 32c is held by the pair of holding portions 33, whereby the opening and closing door 3 is held in a closed state.

FIG. 2 is an explanatory diagram of the striker 20 attached to the back surface of the opening and closing door 3 . (a) of FIG. 2 shows the striker 20 attached to the opening and closing door 3 when viewed from the direction indicated by arrow A in FIG. 1 . As shown in the figure, the striker 20 roughly has a shape in which a trapezoidal plate-like member is erected from a plate-like base 20 a, which is attached to the back side of the handle 3 a formed on the opening and closing door 3 with a mounting screw 3 b. Location. In addition, below, the direction in which the trapezoidal plate-like member protrudes from the base 20a is referred to as the "projection direction" of the striker 20, and the thickness direction of the trapezoidal plate-like member is called the "thickness direction" of the striker 20. The direction of the upper side or lower side of the trapezoidal shape is called the "width direction" of the striker pin 20 .

(b) of FIG. 2 shows the shape of the striker 20 when viewed from the direction indicated by arrow B in (a) of FIG. 2 . As shown in FIG. 2( b ), a rectangular-shaped through hole 22 that is long in the width direction (the left-right direction on the paper of FIG. 2( b )) is formed on the front end side of the striker pin 20 . Therefore, the striker 20 has a shape in which the striker head 21 is on the front end side of the through hole 22 and the striker main body part 23 is on the base end side (the base 20 a side) of the through hole 22 . It is supported by columnar portions (hereinafter referred to as support portions 24 ) on the left and right (both sides in the width direction). The support portion 24 supports the striker head 21 from both sides in the width direction. The front end portion of the support portion 24 is formed into a slope shape with a front end that is tapered in the width direction. Accordingly, the width direction guide slope 24 a is formed.

In addition, the through hole 22 is a portion into which a pair of clamping portions 33 built in the latch body 30 described below are fitted. Therefore, in this embodiment, the through hole 22 corresponds to the "fitting part" of the present invention. In addition, it is sufficient that the through hole 22 can accommodate the pair of clamping parts 33 and does not necessarily need to penetrate the striker pin 20 . Therefore, a recess may be formed from the upper surface and the lower surface of the striker pin 20 so as to face each other.

FIG. 2( c ) shows a cross-sectional view taken at the position of cross section C-C in FIG. 2( b ). As shown in the figure, the striker head 21 is formed with inclined surfaces on the front end side and the base end side respectively. The inclined surface (insertion-side sliding surface 21a) formed on the front end side is a surface that comes into contact with and slides against the clamping portion 33 when the striker 20 is inserted into the latch recess 32c (see FIG. 1) of the latch body 30. Details will be given later. narrate. In addition, the inclined surface (extraction side sliding surface 21b) formed on the base end side of the striker head 21 is in contact with the clamping portion 33 when the striker 20 is pulled out from the latch recess 32c of the latch body 30. Sliding surface. In the striker 20 of this embodiment, the angle between the insertion side sliding surfaces 21a is set to be smaller than the angle between the extraction side sliding surfaces 21b.

FIG. 3 is an exploded assembly view showing the detailed shape of the lock body 30 of this embodiment. As shown in the figure, the lock body 30 of this embodiment is provided with: a mounting plate 31 for mounting the lock body 30 to the main body 2; a receiving portion 32 formed with a lock recess 32c; and a pair of clips to be described later. The holding portion 33 accommodates a pair of clamping portions 33 in a slidable manner; a pair of clamping portions 33 are slidably assembled inside the receiving portion 32; a pair of coil springs 34 support the pair of clamping portions 33. 33 exerts force; and a holding cover 35 that holds the pair of clamping parts 33 and the coil spring 34 assembled in the receiving part 32 in such a manner that they do not fall off.

The mounting plate 31 is a plate-shaped member with a rectangular through window 31a formed in the center, and mounting holes 31b for mounting the latch main body 30 to the main body 2 are formed on both sides of the through window 31a in the up and down direction.

The storage portion 32 is a member in which mounting holes 32b are formed on both sides of the plate-shaped base plate 32a in the up-down direction, and a rectangular lock recess 32c is formed in the center of the base plate 32a. The periphery of the lock recess 32c is formed into a rectangular shape surrounded by the frame wall 32d. The storage portion 32 is aligned with the mounting plate 31 by fitting the frame wall 32d into the through window 31a of the mounting plate 31, and then inserts mounting bolts (not shown) into the mounting holes 31b and the mounting holes 32b. , together with the mounting plate 31, are fastened to the main body 2.

Furthermore, as shown in FIG. 3 in an enlarged view of the latch recess 32c, a rectangular-shaped recess elongated in the left-right direction (the width direction of the striker 20) is formed on the back side of the center of the latch recess 32c. The space from this recess to the entrance of the latch recess 32 c becomes a space into which the striker 20 is inserted (insertion area 32 e ). In FIG. 3 , the inserted area 32e is indicated by hatching. Guide slopes 32f that taper toward the depth direction are formed on both sides in the up-down direction (the thickness direction of the striker 20) of the insertion region 32e. Furthermore, a sliding passage 32g for slidably accommodating the clamping portion 33 described below is opened at the center of the guide slope 32f. Furthermore, on both sides in the left-right direction (the width direction of the striker 20) with respect to the insertion area 32e, guide slopes 32h tapering toward the depth direction are also formed at the entrance portion of the latch recess 32c.

In addition, the shape inside the latch recessed portion 32 c is a shape matching the shape of the striker pin 20 . Therefore, regarding the direction in the latch recessed portion 32c, the left-right direction is called the width direction, and the up-down direction is called the thickness direction, corresponding to the direction of the striker pin 20. In addition, the guide slopes 32f of this embodiment formed on both sides in the thickness direction of the inserted region 32e correspond to the "thickness direction guide slope" of the present invention.

The clamping portion 33 is generally a member in which the tip of the rectangular parallelepiped in the longitudinal direction protrudes in a wedge shape, and is accommodated in the sliding passage 32g of the accommodation portion 32 with the wedge-shaped protruding sides facing each other. The detailed shape of the clamping portion 33 will be described later. Moreover, each clamping part 33 is biased by the coil spring 34 from the back side in the direction which approaches each other. In addition, the coil spring 34 of this embodiment corresponds to the "force spring" of the present invention. Furthermore, in order to previously hold the pair of clamping parts 33 and the coil springs 34 installed on the back side of the lock recess 32c of the accommodating part 32, a holding cover 35 is attached to the accommodating part 32 from the back side.

FIG. 4 is an explanatory diagram showing the detailed shape of the pair of clamping parts 33. FIG. 4( a ) shows a detailed shape viewed from the direction of arrow D in FIG. 3 , and FIG. 4( b ) shows a detailed shape viewed from the direction of arrow E in FIG. 3 . As shown in (a) of FIG. 4 , an inclined surface numbered “33a” is formed at the front end portion of the clamping portion 33 . This inclined surface is an inclined surface on which the insertion-side sliding surface 21 a (see FIG. 2( c )) of the front end of the striker 20 slides when the aforementioned striker 20 is inserted between the pair of clamping parts 33 . Therefore, this inclined surface will be called the inserted side sliding surface 33a below.

Moreover, as shown in FIG. 4( b ), an inclined surface numbered “33b” is also formed on the side opposite to the insertion-side sliding surface 33a at the front end portion of the clamping portion 33 . This inclined surface is a withdrawal-side sliding surface 21 b (refer to FIG. 2( c )) of the front end of the striker 20 when the striker 20 inserted and held between the pair of clamping parts 33 is taken out. of the inclined surface. Therefore, this inclined surface will be referred to as the pulled-out side sliding surface 33b below. Furthermore, a cylindrical mounting hole 33 c into which the coil spring 34 is inserted from the back side is formed in the clamping portion 33 .

FIG. 5 is an explanatory diagram showing an enlarged view of the inside of the latch recessed portion 32c with the clamping portion 33 and the coil spring 34 attached. As shown in the figure, the pair of clamping parts 33 is attached to the insertion area 32e formed in the center of the latch recessed part 32c in a state where the front end side protrudes from both sides in the up-down direction. In addition, guide slopes 32f are formed on both sides of each clamping portion 33. However, if an overhead guide slope is assumed between the guide slopes 32f on both sides, the clamping portion 33 is located on the inserted side sliding surface of the clamping portion 33. 33a forms a position where the slope is continuous with the overhead guide slope.

FIG. 6 shows a cross-sectional view of the lock recessed portion 32 c of the storage portion 32 taken along the cross-section F-F in FIG. 5 . In FIG. 6 , for reference, the striker 20 inserted into the lock recess 32 c is also indicated by a dotted line. As shown in the figure, the dimension W2 in the width direction (the left-right direction in FIG. 6 ) of the clamping portion 33 whose front end protrudes toward the insertion area 32 e is larger than the dimension W1 in the width direction of the through hole 22 formed in the striker 20 Small. Therefore, when the striker 20 is inserted into the insertion area 32e, the front end of the clamping portion 33 can be fitted into the through hole 22 of the striker 20. In addition, the functions of the guide slope 32f formed in the latch recess 32c, the guide slope 32h formed in the entrance portion of the latch recess 32c, and the width direction guide slope 24a formed on both sides of the front end of the striker 20 will be explained in This will be explained later. Furthermore, as shown in FIGS. 5 and 6 , the guide slopes 32f are formed on both sides in the width direction of the clamping portion 33 , but no guide slopes are formed at positions overlapping the clamping portion 33 in the width direction. 32f. The reason for this will also be explained later.

FIG. 7 is a cross-sectional view showing the action of the latch body 30 of the above-described embodiment holding the striker 20 . (a) of FIG. 7 shows a state before the opening and closing door 3 shown in FIG. 1 is closed. As shown in (a) of FIG. 7 , in this state, the striker head 21 at the front end of the striker 20 has not yet been inserted between the pair of clamping parts 33 . When the opening and closing door 3 is closed, as shown by the arrow in FIG. 7( a ), the striker 20 approaches between the pair of clamping parts 33 , and the insertion-side sliding surface 21 a formed at the front end of the striker head 21 and The insertion-side sliding surface 33a formed at the front end of the clamping portion 33 is in contact with the insertion-side sliding surface 33a. Next, when a force is applied from this state in the direction of closing the door 3, as shown in (b) of FIG. The space between the two clamping parts 33 is widened, and the striker head 21 is inserted between the two clamping parts 33 .

Here, as described above, the dimension W2 in the width direction of the clamping portion 33 is smaller than the dimension W1 in the width direction of the through hole 22 formed in the striker pin 20 . Therefore, when the striker 20 is further inserted, as shown in (c) of FIG. 7 , the front end portion of the clamping portion 33 fits into the through hole 22 of the striker 20 . The clamping part 33 is biased from the rear side by the coil spring 34. Therefore, the striker 20 is held by the clamping part 33 from both sides. Therefore, the opening and closing door 3 is also held in a closed state.

Furthermore, when the opening and closing door 3 is opened and the opening and closing door 3 is pulled, the extraction side sliding surface 21b of the striker head 21 of the striker 20 comes into contact with the extraction side sliding surface of the clamping part 33. 33b. Next, when further force is applied to pull the opening and closing door 3, as shown in (d) of FIG. 33 expands, and with the expansion, the striker head 21 is pulled out from between the two clamping parts 33 . As a result, the state finally returns to the state shown in (a) of FIG. 7 , and the opening and closing door 3 becomes an open state.

Comparing Fig. 7(b) and Fig. 7(d) , it can be seen that compared with the movement of the extraction side sliding surface 21b and the extraction side sliding surface 33b that come into contact when the opening and closing door 3 is opened, relative to the striker pin 20 The angle of the inserting side sliding surface 21 a and the inserted side sliding surface 33 a that come into contact when the opening and closing door 3 is closed is small relative to the moving direction of the striker pin 20 . Therefore, the force required for the striker head 21 of the striker 20 to expand the space between the two clamping parts 33 is smaller when closing the opening and closing door 3 than when opening the opening and closing door 3 . As a result, the opening and closing door 3 can be closed with a light force when closing it, but a relatively large force is required to open the opening and closing door 3 . Therefore, an excellent operating feeling can be achieved without worrying about accidentally opening the opening and closing door 3 .

Here, as described above using FIG. 1 , the opening and closing door 3 is axially supported on the side opposite to the side on which the striker 20 is installed. Therefore, when the installation of the opening and closing door 3 includes an error, the opening and closing door 3 is subjected to In the case of larger force, the position of the striker pin 20 will shift. Therefore, when the door 3 is closed, the front end of the striker 20 cannot be smoothly inserted between the two clamping parts 33 .

However, in this embodiment, as shown in FIG. 6 , guide slopes 32f are formed on both sides of the clamping portion 33 in the width direction. Furthermore, the through hole 22 of the striker 20 is formed such that the dimension W1 in the width direction is wider than the dimension W2 in the width direction of the clamping portion 33 , and support portions 24 are formed on both sides of the through hole 22 in the width direction. Therefore, as illustrated in FIG. 8 , when the position of the striker 20 is shifted in the thickness direction (up and down direction in FIG. 8 ), the support portions formed on both sides of the striker head 21 of the striker 20 24 is in contact with the guide slope 32f. Next, as shown by the black arrow in FIG. 8 , the striker 20 is guided toward the clamping portion 33 along the guide slope 32f.

In addition, as described above using FIGS. 5 and 6 , the guide slopes 32f are formed on both sides of the clamping portion 33 at positions that are different in the width direction relative to the clamping portion 33 . The guide slope 32f is not formed at the position where 33 overlaps in the width direction. Therefore, when the striker 20 is guided by the guide slope 32f, the contact area between the striker 20 and the guide slope 32f becomes smaller, and the striker 20 is guided smoothly. As the striker pin 20 is guided in this way, the striker head 21 comes into contact with the insertion-side sliding surface 33 a of the clamping portion 33 this time. Next, the striker 20 expands the clamping portion 33 as it is inserted and slides along the inserted side sliding surface 33 a. Accordingly, as shown in (c) of FIG. 7 , the front end of the clamping portion 33 is finally Fitted into the through hole 22 of the striker pin 20 .

In this way, in this embodiment, even when the position of the striker 20 is shifted in the thickness direction, the striker 20 can be guided between the two clamping parts 33 , so that damage to the opening and closing door 3 can be suppressed. The operation feeling when closed. Furthermore, as shown in FIG. 8 , since the guide slope 32f and the inserted side sliding surface 33a are smoothly connected, the striker 20 smoothly switches from the state of sliding on the guide slope 32f to the state of sliding on the inserted side sliding surface 33a. condition. Therefore, when closing the opening and closing door 3, the operator will not feel the step feeling.

FIG. 9 is an explanatory diagram illustrating a case where the position of the striker 20 is shifted in the width direction (the left-right direction in FIG. 9 ) when the opening and closing door 3 is closed. As shown in the figure, when the position of the striker pin 20 is shifted in the width direction (the left-right direction in FIG. 9 ), when the striker pin 20 is inserted into the lock recess 32 c, a gap formed in the striker pin 20 The width direction guide slopes 24a on both sides of the front end are in contact with the guide slopes 32h formed near the entrances on both sides of the latch recess 32c in the width direction. As a result, as shown by the black arrow in FIG. 9 , the striker 20 is guided toward the clamping portion 33 along the guide slope 32h. Therefore, even when the position of the striker 20 is shifted in the width direction, the striker 20 can be guided between the two clamping portions 33 , and therefore it is possible to suppress impairing the operating feeling when closing the opening and closing door 3 . condition.

The lock device 10 of this embodiment has been described above. However, the present invention is not limited to the above-mentioned embodiment, and can be implemented in various forms within the scope that does not deviate from the gist of the invention.

For example, in the lock device 10 of this embodiment described above, the striker 20 is installed on the opening and closing door 3, and the lock body 30 is installed on the main body 2. However, the lock body 30 can also be installed on the opening and closing door 3, and the lock body 30 can also be installed on the opening and closing door 3. The main body 2 is equipped with a striker 20 .

1: Clothes dryer 2:Subject 2a:Input port 3:Open and close the door 3a: handle 3b: Installation screws 10:Lock device 20: Crash 20a:Base 21:Bump head 21a: Insertion side sliding surface 21b: Pull out the side sliding surface 22:Through hole 23:Bump main body part 24:Support part 24a: Width direction guide slope 30:Lock body 31:Mounting plate 31a: Through window 31b:Mounting hole 32: Storage Department 32a:Substrate 32b:Mounting hole 32c: Lock recess 32d:frame wall 32e:Inserted area 32f: Guide slope 32g: Sliding channel 32h: Guide slope 33: Clamping part 33a: Inserted side sliding surface 33b: Pulled out side sliding surface 33c:Mounting hole 34:coil spring 35: Keep cover

[Fig. 1] is a perspective view showing the appearance of the clothes dryer 1 equipped with the lock device 10 of this embodiment. [Fig. 2] is an explanatory diagram of the striker 20 of the present embodiment attached to the opening and closing door 3 of the clothes dryer 1. [FIG. 3] is an exploded assembly view showing the detailed shape of the latch main body 30 of this embodiment mounted on the main body 2 of the clothes dryer 1. [Fig. 4] is an explanatory diagram showing the detailed shape of a pair of clamping parts 33 mounted inside the latch body 30 of this embodiment. [Fig. 5] is an explanatory diagram showing the shape of the latch recess 32c of the latch main body 30 into which the striker 20 is inserted. [Fig. 6] is an explanatory diagram showing the positional relationship between the guide slope 32f formed in the latch recess 32c, the through hole 22 formed in the striker 20, and the support portion 24. [Fig. 7] It is an explanatory diagram showing the operation of the lock device 10 of this embodiment. [Fig. 8] This is an explanatory diagram showing the reason why the opening and closing door 3 can be closed smoothly even when the position of the striker 20 is shifted in the thickness direction (up and down direction). [Fig. 9] This is an explanatory diagram showing the reason why the opening and closing door 3 can be closed smoothly even when the position of the striker 20 is shifted in the width direction (left-right direction).

20: Crash

21:Bump head

21a: Insertion side sliding surface

30:Lock body

32f: Guide slope

33: Clamping part

33a: Inserted side sliding surface

Claims (5)

A locking device for keeping a door in a closed state, with either of its left and right ends axially supported by a main body. The locking device is provided with a striker pin, the base of which is installed on either the main body or the door. The striker protrudes from the base; and the latch body is installed on either the body without the striker or the opening and closing door, and is equipped with a lock body that is mounted on both sides when the opening and closing door becomes the closed state. A pair of clamping parts clamping the striker is characterized by: This pin has: The striker head is a portion formed at the front end of the striker and the dimension in the thickness direction gradually increases from the front end toward the base end of the striker and then decreases. The thickness direction is the portion between the pair of clamping portions. The direction of clamping on both sides; A fitting portion is formed at a position adjacent to the striker head on the base end side for the pair of clamping portions to fit from both sides in the thickness direction, and its dimensions in the width direction are formed as A size larger than a size of the clamping portion in the width direction, which is a direction orthogonal to the thickness direction and the protruding direction of the striker pin; and a support portion formed on at least one side of the fitting portion in the width direction and supporting the striker head from at least that side, The lock body has: a latch recess formed on the side facing the striker; and A pair of biasing springs, with respect to the insertion area of the striker set at the center of the lock recess, and the pair of clamping portions mounted on both sides in the thickness direction toward the insertion area. Apply force in the direction of The pair of clamping parts is mounted on the lock body in a state where the front end portions of the clamping parts protrude inward of the inserted area, In the lock recess, thickness direction guide slopes for guiding the striker head from the thickness direction toward the clamping portion are formed at positions on both sides in the thickness direction relative to the inserted region. The locking device according to claim 1, wherein, The support portion of the striker supports the striker head from at least one side in the width direction, A width-direction guide slope is formed at the front end of the support portion. When the striker is inserted into the insertion area of the lock body, the width-direction guide slope guides the striker along the width direction toward the insertion area. The locking device according to claim 1, wherein, The head of the striker is formed with: An insertion-side sliding surface that, when the striker is inserted into the inserted area of the lock body, slides relative to the front end portion of the clamping portion protruding into the inserted area; and the extraction side sliding surface, when the striker is extracted from the inserted area of the lock body, the extraction side sliding surface slides relative to the front end portion of the clamping portion protruding into the inserted area, Formed on the front end of the clamping part: An inserted side sliding surface that slides relative to the insertion side sliding surface of the striker head when the striker is inserted into the inserted area; and The extracted side sliding surface slides relative to the extracted side sliding surface of the striker head when the striker is extracted from the inserted area, The inclination angle of the insertion-side sliding surface and the inserted-side sliding surface with respect to the insertion direction of the striker pin is set to be larger than the inclination angle of the extraction-side sliding surface and the extracted-side sliding surface with respect to the extraction direction of the striker pin. A small angle. The locking device according to claim 3, wherein, The thickness direction guide slope formed in the lock recess and the inserted side sliding surface of the clamping part form a continuous slope when viewed from the width direction. The locking device according to any one of claims 1 to 4, wherein, The thickness direction guide slope is formed on both sides in the thickness direction relative to the inserted area and at a position offset in the width direction relative to the pair of clamping parts, and is formed on both sides in the width direction. side, in addition, The thickness direction guide slope is not formed at positions that are both sides in the thickness direction with respect to the inserted region and are also both sides in the thickness direction with respect to the pair of clamping portions.