JP3091442U - Sliding door lock - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Even if the sliding door is closed with the hook-shaped part at the tip of the sickle member protruding, even if the sliding door collides with the receiving fitting on the door frame side, the hook-shaped part and the receiving fitting have excessive impact force. To avoid damage and prevent damage. SOLUTION: A lock case 1 having horizontally long side plates 3 and 3, a hub 5 having an outer peripheral portion 26 for locking, and a sickle member 8 are provided.
And a section spring 13 that presses the locking outer peripheral portion 26 so that the rotation of the hub 5 can be locked at a specific position. The sickle member 8 can be moved back and forth by the rotation of the hub 5. When it moves forward, it protrudes from the lock case 1 and pivots upward or downward so that it can be hooked on the bracket 20 of the door frame 19 and pivots upside down when moving backward. When the sliding door is closed while being immersed in the lock case 1 and protruding from the lock case 1, it moves downward or upward while moving backward by collision with the receiving fitting 20 and immerses in the lock case 1. A hook-like member 9 is provided at the tip.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a lock for a sliding door, and more particularly, a tube for a sliding door. It is a la-type sickle lock, has a simple structure with a small number of parts, and is compact and easy to install. Not only does it keep pace, but it operates smoothly, and the mounting position with the bracket is somewhat The feature is that even if there is a deviation, it can be locked securely.

[0002]

[Prior art]

  The sliding door lock, that is, the operating member rotates the hub in the lock case to move the sickle member forward. So that it can be released from the door frame by fitting it to the receiving bracket of the door frame, and by retracting it. There are various types of conventional locks. And the same tu As the bra-type sickle lock, for example, one described in JP-A-10-25937 is available. It   The gist of the configuration is, as described in claim 1 of the claims, "a thumb turn or Or a rotation cam linked to the door handle, a link linked to the cam, and the link Sliding lock with a sickle that is rotatably connected to the , The link and the sickle are housed in the lock case so that they can move substantially parallel to each other, and The sickle can be engaged with the sickle, and the sickle can be rotated through the engagement between the sickle and the sickle. It is a sliding door lock.

[0003]   An example thereof is shown in FIGS. 1 to 8 of the publication, the first of which is rotation. Rotate the cam to push the link connected to it forward to the pin at the front end of the link. The sickle pivotally attached is also pushed forward, and the oblique guide surface at the lower center of the sickle By engaging with the opening edge of the insertion hole in the center of the front plate and pushing it up, the sickle is raised. Rotate upwards with the pin as a fulcrum, and the locking claw at the tip engages with the inner edge of the opening. Is done.   In addition, No. 2 pushes the link connected to the rotation cam forward by the rotation of the rotation cam, The sickle pivotally attached to the pin at the front end of the link is also pushed forward, and the upper end of the rear end of the sickle is pushed forward. The convex part of the table engages with the stopper pin near the front part of the lock case, and the sickle rotates upward. Movement is promoted, and the convex portion at the rear end of the lower end engages with the stopper at the front end of the lock case, The sickle is rotated so that the locking claw at the tip engages with the inner edge of the opening.

[0004]

[Problems to be solved by the device]

  By the way, although the sliding door lock described in the above publication has a simplified structure, Between the rotating cam (called the hub in the present invention) and the sickle (called the sickle member in the present invention) The link that connects the two is an indispensable part, and the structure of the rotating cam has a complicated shape. It is necessary, which affects the increase of material cost and manufacturing cost.   When the sickle is operating, the sickle moves forward through the link by the rotation of the rotation cam, and the lock case The slanted guide surface in the lower center of the sickle on the front part of the Are pushed up together, or the convex portion on the rear end of the sickle engages with the stopper pin, Moreover, the convex portion at the rear portion of the lower end engages with the stopper and is pushed up.

[0005]   Therefore, the forward movement of the sickle is not always smooth. Even if the sword is rotated, only the slanted guide surface engages with the opening edge of the insertion hole to ensure smooth movement. It does not always rotate to the right. Also, the convex part on the rear end of the sickle should be Even if the projections at the rear of the lower end engage the stoppers, the sickle's rotation will be smooth. It is hard to say that it will be carried out at any time, and it does not mean that trouble does not occur in the working state of the sickle. Yes.   Furthermore, since the sickle is pivotally supported on the link at the rear end, it is linked in the lock case. The total length of the sickle is shortened by the length of the sickle. Therefore, from the locking claw at the tip of the sickle to the shaft The distance to the fulcrum is short, and the vertical movement width of the locking claw at the tip when the sickle rotates around the fulcrum Is small, for example, there is an error in the mounting position between this lock and the bracket In some cases, the locking claw may not be able to engage with the inner edge portion of the receiving fitting.

[0006]   Moreover, the above is a locked state where the sickle is hooked on the receiving metal, and the sliding door is impossible. When it is attempted to be opened, the external force from the sickle will be pin, link, and turn inside this lock. Since it acts on the dynamic cam etc., the strength of each part becomes a problem and reliability is somewhat difficult. There was a problem such as whether there is no.   The present invention is a tubular type sickle lock for a sliding door, and has the above-mentioned problems of the conventional one. The problem is to solve. That is, the purpose of the present invention is to simplify the parts The number is further reduced to reduce costs, and it is compact and does not take up space for installation. It has excellent strength, and the operation is always accurate and smooth, and the receiving Even if there is an error in the mounting position of the tool, it can be locked properly and locked securely. The purpose of the present invention is to provide a lock for sliding doors.

[0007]

[Means for Solving the Problems]

  The first one of the sliding door locks according to the present invention opposes both side plate portions 3 of the lock case 1. While forming the guide long groove portions 7 on the inner side surface from the rear side toward the front, , A curved portion 17 is formed upward or downward near the front of each of the long groove portions 7, and a hook is formed at the tip. The sickle member 8 having the shape portion 9 is formed with a rearwardly elongated lateral portion 10, A guide pin 11 is provided near the center and a connecting pin 12 is provided near the rear end. The pins 11 and 12 are engaged with the guide long groove portion 7, and the connecting pin 12 Is connected to the hub 5, and the rotation of the hub 5 can be locked at a specific position. The section spring 13 for pressing the portion 26 is provided.

[0008]   A second type of sliding door lock according to the present invention is one in which both side plate portions 3 of the lock case 1 face each other. The guide long groove portions 7 are formed on the inner side surface from the rear side toward the front. In addition, a curved portion 17 is formed upward or downward near the front of each long groove portion 7 and The sickle member 8 having the hook-shaped portion 9 is formed with a horizontally elongated rear portion 10, and the horizontally elongated portion 10 is formed. The guide pin 11 is laterally provided near the center, and the connecting pin 12 is provided at the rear part. And rotatably support the auxiliary plate 14 for extension of the back set, and move it toward the rear part of the auxiliary plate 14. The second connecting pin 15 is provided sideways on the above to connect with the hub 5, and the pins 11, 12, 15 Are engaged with the guide long groove portions 7 and the rotation of the hub 5 is locked at a specific position. A section spring 13 for pressing the locking outer peripheral portion 26 is provided as much as possible. is there.

[0009]

[Embodiment of device]

  In the above structure, the sliding door lock according to the first invention and the second invention according to the second invention. The difference in composition is due to the size of the backset. Back set For normal ones, use the sliding door lock of the first invention. Lock case depending on the type of operation member such as sliding door 16, knob, lever handle, etc. When it is necessary to position the hub 5 in the position 1 rearward from the normal position, the second device can be used. You can use a door lock.

[0010]   A sliding door lock with a large backset should include all parts including the sickle member as usual. It may be manufactured separately from the sliding door lock, but this is expensive. So the above In the device for sliding doors of the second invention, the lock case 1 is longer than that of the first sliding door lock. Is used (see, for example, FIG. 11), but the sickle member 8 itself is the same as that of the first invention. While using it, a connecting pin 12 is provided on the rear portion of the horizontally long portion 10 for expanding the back set. The auxiliary plate 14 is connected, and the second connecting pin 15 at the rear portion of the auxiliary plate 14 engages with the hub 5. -Connected.

[0011]   Guides formed on both side plate portions 3 of the lock case 1 in the sliding door lock of the first and second inventions. The curved portion 17 near the front of the long groove portion 7 for use is a guide that is provided laterally on the horizontally elongated portion 10 of the sickle member 8. The hook 11 at the tip is engaged by the engagement of the pin 11 for the guide and the upward movement or the downward movement thereof. The shape portion 9 is rotated upward or downward to be curved so that it can be locked in the receiving metal fitting 20. Has been formed.   The hub 5 is an operation member provided on the inner and outer surfaces of the sliding door 16 as in the conventional one. The rotary shaft 18 such as a knob or lever handle is inserted into the square hole 25 to rotate it. It is possible. The hub 5 has a connecting pin 12 in the sliding door lock of the first invention. Also, in the sliding door lock of the second invention, the second connecting pin 15 is engaged and connected respectively. For example, a bifurcated portion is formed on the hub 5, and the pins 12 and 15 are It may be engaged.

[0012]   The section spring 13 may be a coil spring or a leaf spring, for example. Both ends are locked in the lock case 2 and the locking outer peripheral portion 26 of the hub 5 is pressed. And prevent unintentional rotation.   For the manufacture of the above-mentioned sliding door lock, the lock case 1 is preferably die-cast. In particular, the front plate 2 and one side plate part 3 are integrally formed, and the other side plate part 3 is formed. It is better to stack them together, and the sickle member 8 is made by joining two steel plates. However, it is not limited thereto. Sickle member 8 is a hook at the tip It consists of a shape part 9 and a laterally long part 10 continuing to the rear, but the hook shape part 9 is It is desirable to make it long.

[0013]   In the sliding door lock of the second invention, the lock case 1 is the sliding door lock of the first invention. Even if it is different from the above (see FIG. 11 above), the operating member, the receiving fitting 20, the hub 5, The guide pin 11, the connecting pin 12, the section spring 13, etc. are the same as those of the first invention. The one for the sliding door lock may be used as it is. The second connecting pin 15 is also The same pins as the connecting pins 11 and the connecting pins 12 may be used.   The installation of the sliding door lock according to the present invention is similar to the conventional sliding door lock of this type. The lock case 1 is inserted into the recess formed from the front end surface of the door 16, and the front plate 2 and the front The plate 31 is screwed to the front end surface of the sliding door 16, and a hub is attached to the side surface of the sliding door 16. A hole is provided corresponding to the position of the square hole of No. 5, and a knob, a lever handle, etc. can be operated from the hole. If the shaft 6 of the member is inserted into the square hole 25 of the hub 5 and the seat plate of the operating member is screwed Good.

[0014]   When installing the above, depending on the type of sliding door 16 and operating members, the back set is large. Therefore, when the sliding door lock of the first invention cannot be attached, the pulling lock of the second invention can be installed. Just install a door lock.   The operating state of the sliding door lock of the present invention is as follows. First, close the sliding door 1 When locking the lock, the sickle member 8 is immersed in the lock case 1 (see, for example, FIG. 1). After closing the sliding door 16 with the light, lock the operating members such as knobs and lever handles. Rotate in the direction. The hub 5 in the lock case 1 is connected via the angular axis 18 of the operating member. It rotates (clockwise in the illustrated example), and in the sliding door lock of the first invention, the sickle member 8 is rotated. Through the connecting pin 12 near the rear portion, and in the sliding door lock of the second invention, the second The sickle member 8 is forward (in the illustrated example, leftward) via the connecting pin 12 and the auxiliary plate 14. Will be pushed to.

[0015]   In any of the above cases, for a guide that is horizontally provided near the center of the horizontally long portion 10 of the sickle member 8. The pin 11 engages with the long guide groove 7 formed on the inner surface of the side plate 3 of the lock case 1. Therefore, the sickle member 8 first moves straight forward along the long groove portion 7. This ahead The hook-shaped part 9 at the tip of the sickle member 8 is moved to the front plate 2 and the front plate 31. To the front and engages into the receiving metal fitting 20 provided on the door frame body 19 (for example, See FIG. 2).   Then, the sickle member 8 is moved a little further forward, so that the guide pin 11 Is above or below (in the illustrated example) along the curved portion 17 near the front of the long groove portion 7 for guide. Moves upward), and the connecting pin 12 is also closer to the center of the guide long groove portion 7. Move to the table. Therefore, each sickle member 8 of the sliding door lock of the first and second inventions, The horizontally long portion 10 is upward or downward (upper in the illustrated example) with the connecting pin 12 as a fulcrum. And the hook-shaped elongated portion 9 at the tip also rotates upward or downward (upward in the illustrated example). Then, the hook-shaped portion 9 is locked by the locking member 21 in the receiving metal fitting 20 to be locked. (See, for example, FIGS. 3 and 10).

[0016]   In the above case, both sickle members 8 of the sliding door locks of the first and second inventions are Unlike the sliding door lock, no link is used between the hub 5 and the sickle member 8, and the horizontally long portion 10 Due to this, the sickle member 8 itself is elongated rearward, and the connecting pin near the rear part is formed. It can be rotated around the fulcrum 12. Therefore, the sickle member 8 has a hook-shaped portion 9 at the tip. The vertical movement width when the above is rotated is the same as the conventional rotation angle. However, the length of the sickle member 8 is greatly expanded. As a result, with this sliding door lock Even if there is an error in the mounting position of the bracket 20, the hook-shaped part 9 at the tip of the sickle member 8 is The fitting member 21 of the metal fitting 20 is fitted with a sufficient margin (see FIGS. 3 and 10 above).

[0017]   Regarding the rotation of the sickle member 8 described above, in the sliding door lock of the second invention, the horizontally long sickle member 8 is used. Although the auxiliary plate 14 is connected to the rear portion of the shape portion 10, it is different from the one using the conventional link. This is the case when the back set is large and the lock case 1 is long. The member 8 itself is the same as the sliding door lock of the first invention, and is a long member. is there. Therefore, when the sickle member 8 pivots about the rear connecting pin 12 as a fulcrum, Like the sliding door lock of the first invention, the vertical movement width of the hook-shaped portion 9 at the tip end is large. Therefore, a reliable locked state can be obtained.

[0018]   In the hooked state, the hook-shaped portion 9 at the tip of the sickle member 8 is formed longer than the conventional one. If this is done, this is also useful for securely engaging the receiving metal fitting 20, The section spring 13 presses the locking outer peripheral portion of the hub 5 when the hub is locked, The lock 5 is kept in a locked state by preventing unintentional rotation of the bush 5.   When closing the sliding door 16, leave the hook-shaped part 9 at the tip of the sickle member 8 protruding forward. The hook-shaped portion 9 collides with the front surface of the receiving fitting 20 of the door frame body 19. But above In the sliding door lock of the first or second invention, the collision force applied to the hook-shaped upper portion 9 causes the hub 5 to move. If it is larger than the spring force of the section spring 13 that presses, the guide pin 11 Moves rearward along the curved portion 17 of the guide long groove portion 7, and the sickle member 8 immediately moves. It moves backward along the straight line. Therefore, the hook-shaped portion 9 of the sickle member 8 is straight. The hook-shaped portion 9 and the receiving metal fitting 20 will be damaged because it will be immersed in the lock case 1 later. Never receive.

[0019]   The shape of the portion near the tip of the curved portion 17 near the front of the guide long groove portion 7 is Inner surface 17a against which the operating pin 11 strikes when trying to move from the locked state to the unlocking direction If it is formed so as to bulge backward (see, for example, FIGS. 4 and 11), the curved portion 1 The guide pin 11 located at the tip position of 7 more smoothly follows the curved portion 17. It becomes easier to move backward.   In addition, in this sliding door lock, the hook-shaped portion 9 of the sickle member 8 is a hook member in the receiving metal fitting 20. The guide pin 11 of the sickle member 8 is locked in the lock case 1 when the lock case 21 is locked. It is located at the tip of the long groove portion 7 for the id (see FIGS. 3 and 10). Therefore, sliding doors are impossible If the guide pin 11 of the sickle member 8 is forced to open it, Conventionally, it is received by being hooked on the tip of the long guide groove 7 of the lock case 1. Unlike the above, it does not reach other parts. Moreover, unlike conventional products Since there are few points, there is plenty of space and cost, and the guide pin 11 is thick. The one that is strong enough is used. This makes this sliding door lock It is strong enough to be strong compared to other items, so pull it when it is locked. Even if the door is forcibly opened, it has sufficient reliability as a lock.

[0020]   Next, when unlocking and opening the sliding door 16, the sliding door lock of the first invention is also first. In the sliding door lock of the second invention, the operation member such as the knob is in the opposite direction to the case of the above locking. To rotate the hub 5 in the lock case 1 in the opposite direction via the square shaft 18 (in the illustrated example, left side It may be rotated around). The hub 5 is now in engagement with the connecting pin 1 The sickle member 8 is rearward (to the right in the illustrated example) via the second or second connecting pin 15. Pull to.   With this, the guide pin 11 near the center of the horizontally long portion 10 of each sickle member 8 is used for the guide. Downward or upward (downward in the illustrated example) along the curved portion 17 near the front of the long groove portion 7 The sickle member 8 moves downward or upward (in the illustrated example, with the connecting pins 12 as fulcrums). Rotate downward). Therefore, the hook-shaped portion 9 at the tip also moves downward or upward (in the illustrated example, When it is rotated to the lower side), the engagement with the engagement member 21 in the receiving member 20 is released, and the unlocked state is established. Become. After that, the sickle member 8 retreats along the long groove portion 7 for the guide to form a hook shape. The shaped portion 9 comes out of the receiving metal fitting 20 and sinks into the lock case 1 (see, for example, FIGS. 1 and 9). ).

[0021]   Even in this unlocked state, the section spring 13 is used for locking the hub 5 in that state. Whether the hub 5 is pressed to prevent inadvertent rotation of the hub 5 and the unlocked state is maintained After that, the sliding door 16 may be pulled and opened.   As described above, the shape of the portion near the tip of the curved portion 17 near the front of the long guide groove 7 is formed. When the guide pin 11 tries to move from the locked state to the unlocked direction, If the rear inner surface 17a is formed so as to bulge rearward, the curved portion 17 will be formed in the locked state. The guide pin 11 located at the tip position of the Since it is easy to move backward, unlocking can be performed more smoothly.

[0022]

【Example】

  1 to 8 relate to an embodiment of the sliding door lock of the first invention. However, by rotating an operating member (not shown) such as a knob, the lock case 1 is inserted through the square shaft 18. The inner hub 5 rotates, the sickle member 8 advances, and the hook-shaped portion 9 at the tip turns upwards here. It moves to be hooked on the hooking member 21 in the receiving metal fitting 20 of the door frame body 19, and also the sickle member 8 When retracted, the hook-shaped portion 9 pivots downward to release the hook and the lock case 1 It is possible to immerse inside.

[0023]   The lock case 1 is composed of a front plate 2 and laterally long side plate parts 3. Die cast molding is used here, and one side plate part 3 is integrated with the rear part of the front plate 2. Is formed into a horizontally long lock case main body (see FIG. 4), and the other side plate 3 serves as a lid. It plays a role (see Figure 5).   The front plate 2 has a vertically long hole 33 in the center for allowing the portion of the sickle member 8 near the tip to enter and exit. In addition, it has mounting holes on the top and bottom. A laterally long side plate portion 3 integrated with the front plate 2 Has a horizontally long shape with a vertical length of about 25 mm and a horizontal length of about 60 mm. A round hole 4 for a hub that rotatably supports a shaft portion 6 of a hub 5, which will be described later, is formed at the upper position of I am doing it.

[0024]   Then, on the inner side surface of the side plate portion 2, here near the lower portion thereof, from the rear portion to the front side. The guide pin 11 and the connecting pin 12 etc. are engaged so that they can be moved back and forth, A long groove for guide 7 of about 50 mm is formed. Here, the depth of the long groove portion 7 is It is about 2.5 mm, and the groove width (height) is 0.5 from the outer diameter of each of the pins 11 and 12. It is increased by about mm. And, a portion near the front part of the guide long groove portion 7, here, The curved portion 17 is formed by curving the front portion upward from about 35 mm from the rear end portion. Has been formed.

[0025]   Further, the side plate 3 on the other lid side also corresponds to the above side plate 3 and the upper side near the rear part. A round hole 4 for the hub is formed at the rear position, and it is directed from the rear to the front near the lower part of the inner surface. The guide long groove portion 7 is formed, and the curved portion is curved upward toward the front portion. 17 is formed.   The rear end portion of the lock case 1 is formed in an arc shape centered on the rotation axis of the hub 5 described later. Has been done. In addition, the hub 5 is arranged such that its rotation axis is closer to the upper part of the lock case 1. The rear end of the lock case 1 is formed in an asymmetrical arc shape above and below the lock case 1. Has been done.

[0026]   Of the curved portions 17 near the front of each of the long groove portions 7 for guides, the portion near the tip is Then, the width is not the same as the outer diameter of the guide pin 11, but the guide pin 11 is locked. The rear inner surface 17a near the tip, which strikes when moving from the position to the unlocking direction, It is formed so as to bulge backward (see, for example, FIGS. 1 and 2). This ensures that when locked The guide pin 11 at the tip of the curved portion 17 smoothly moves into the curved portion 1 It is easy to move backward along 7.   The sickle member 8 is made by joining two stainless steel plates together by spot welding. And is composed of a hook-shaped portion 9 at the tip and a horizontally elongated portion 10 that follows (see FIG. 6). The The sickle member 8 bends upward at an angle of approximately 90 degrees with respect to the oblong portion 10 here. And a horizontally elongated portion 10 having a length of about 50 mm continues from the lower portion of the hook-shaped portion 9 to the rear. And insert the guide pin 11 into the round hole 22 formed in the central portion of the horizontally long portion 10. There is. The guide pin 11 is here a short cylinder made of stainless steel and having an outer diameter of about 5 mm. Both sides are engaged with the above-mentioned long groove portions 7 for guides so that they can be moved back and forth. It

[0027]   In addition, the horizontally long portion 10 of the sickle member 8 has a single stainless steel plate near the rear portion, The hub 5 and the connecting pin 12 for connecting can be inserted into the round hole 23 formed there. Yes (see FIG. 6 above). The connecting pin 12 is the same as the guide pin 11 here. The same one is used, which is engaged with and connected to the forked portion 24 of the hub 5, and Both side portions of the pin 12 are also engaged with the guide long groove portion 7 and moved back and forth along it. It is possible.   The hub 5 is also die cast here, and the operation member is provided at the center thereof. There is a square hole 25 that can engage the square shaft 18 such as a knob, and both side parts are The shaft portion 6 is rotatably supported by the hub round hole 4 of the lock case 1. On the hub 5 Here, a bifurcated portion 24 is formed downward to engage with the connecting pin 12. It is connectable, and the upper part is for being pressed by the section spring 13 to be described later. When the outer peripheral portion 26 is formed (see FIG. 7), the sickle member 8 is in the most advanced state and the most retracted state. Sections are provided (see FIGS. 1, 3, 9 and 10).

[0028]   The section spring 13 is a horizontally long leaf spring, and both ends of the section spring 13 are used here. Is locked by the locking piece 27 on the upper side of the side plate 3 of the lock case 1, and the hub is locked as described above. The locking outer peripheral portion 26 of 5 can be pressed.   Next, FIGS. 9 to 12 show an embodiment of the sliding door lock of the second invention. Therefore, depending on the type of operation member such as the sliding door 16 and the knob, the back door of the sliding door lock is This is used when it is necessary to make the cassette large. And here The sliding door lock of the first device and the parts are shared as much as possible.

[0029]   Although the lock case 1 is different from the sliding door lock of the first invention (see FIG. 11). ), The side plate portions 3 are formed to have a length of about 20 mm here. The round hole 4 for the guide is located to the rear by that amount, and the long groove portion 7 for the guide on each inner surface is also the same. The only difference is that it is formed backwards as much as that amount.   In that case, since the sickle member 8 also needs to be long, although not shown, the horizontally long portion You may use the sickle member which lengthened. However, here, the sickle member 8 itself is left as it is. It has a hook-shaped part 9 at its tip and a horizontally elongated part 10 behind it. The guide pin 11 is inserted into the circular hole 22 at the center of the horizontally elongated portion 10, and the rear portion Rounded hole 23 for connection is formed in the stainless steel piece for expanding the back set The auxiliary plates 14 are connected (see FIGS. 9 and 10).

[0030]   Here, the auxiliary plate 14 has a horizontally long shape of about 30 mm, and the front and rear portions thereof are pin-inserted. Round holes 28 for use respectively are formed (see FIG. 12), and the front round hole 28 and the sickle member are formed. Inserting the connecting pin 12 into the round hole 23 at the rear of the horizontally elongated portion 19 of 8, and as described above, The auxiliary plate 14 is connected to the rear portion of the member 8 (see FIGS. 9 and 10 above).   Here, the connecting pin 12 is also provided with a guide similar to the sliding door lock of the first invention. When the guide pin 11 moves in the guide long groove portion 7, it can move back and forth in the long groove portion 7, When the guide pin 11 moves along the curved portion 17, the fulcrum when the sickle member 8 rotates become. Also, the rear portion of the auxiliary plate 14 is engaged with the forked portion 24 of the hub 5 for connection. The second connecting pin 15 is provided laterally, but the second connecting pin 15 is also a guide. It is possible to move in the front-back direction inside the long groove portion 7 for the guide. The connecting pin 12, the second The connecting pin 15 has the same parts as the guide pin 11.

[0031]   The operating states of both the examples are as described in the embodiment of the invention. , It is omitted here to avoid duplication. Further, in both of the above-mentioned embodiments, the sickle member 8 is upward. Although a general one that is rotated to is shown, the sickle member 8 is rotated downward to be locked. In this case, the sliding door lock and the receiving member may be provided upside down. In the figure, 29 is a screw hole for joining both side plate portions 3 of the lock case 1, 30 is a sliding door for an operating member 16 insertion holes for connecting screws (not shown) for connecting inside and outside of the room, 31 is a plastic Muffing sleeve for noise reduction, 32 is a front plate, and 33 is a vertically long hole for inserting and removing the sickle member. You

[0032]

[Effect of device]

  As is apparent from the above, the sliding door lock according to the present invention has a simple structure and has a simple structure. The number is small, and the cost is further reduced. It is also excellent in strength, and the operation is always smooth so that trouble does not occur. Even if there is not, and there is an error in the mounting position of the sliding door lock and the receiving metal It can be locked securely and can be locked.   That is, the conventional tubular type sickle lock for sliding doors has the simplified structure as described above. Having said that, it is essential to provide a connecting link between the hub and the sickle member. The hubs also required complex shapes, which pushed up material and manufacturing costs.

[0033]   Also, the operating state is that the sickle member is in the front part of the lock case when the sickle member is moving forward, The id surface is pushed up by engaging the opening edge of the insertion hole or on the rear end of the sickle member. The convex part of the position engages with the stopper pin of the lock case, and the convex part at the rear of the lower end is the lock case. It was to be pushed up by engaging the stopper of the roller. Therefore, in front of the sickle member There may be some rattling in the forward / backward movement, and the movement is not always smooth. It is not always the case, and the rotation when moving to the front position is always smooth. Was not always.

[0034]   Furthermore, it is essential to provide a link at the rear end of the sickle member, so that link The sickle member is shortened by the length of. Therefore, the sickle member starts from the hook-shaped part at the tip. The distance to the fulcrum during rotation is short, and the vertical movement width of the hook-shaped portion during rotation is Even if the moving angle is the same, it is shorter, and there is a mounting error with the mounting position of the bracket. Then, the hook-shaped portion may not be properly hooked on the hook member.   Moreover, when the sliding door is forcibly opened in the locked state, the external force Is transmitted from the sickle member to each part of the pin, link, and sickle member, so there is no trouble in strength. I was worried and had some problems with reliability.

[0035]   On the other hand, in the sliding door lock according to the present invention, a) the sliding door lock of the first invention described above. As for the sickle member of the sickle member, the rear part of the laterally long part to the rear of the sickle member itself is connected through the connecting pin. The hub structure may be relatively simple. So Because of this, unlike the conventional one, no link is required and the structure can be further simplified. In addition, since the hub can have a simple shape, material cost and manufacturing cost can be reduced. You can   b) In addition, the sliding door lock of the second invention is used when the back set at the time of mounting is large. It is used in combination, just by providing an auxiliary plate for expanding the back set at the rear of the sickle member is there. Therefore, operating members, brackets, hubs, guide pins, connecting pins, security The spring for the spring can be shared with the lock for the sliding door of the first invention, The number of parts can be reduced, and the cost can be reduced to the same extent as the first one. be able to.

[0036]   c) Furthermore, in the sliding door lock of the first invention, the lock is located near the center of the horizontally long portion of the sickle member. The id pin and the rearwardly connecting pin are the same as those in the sliding door lock of the second invention. In addition to this, the second connecting pin on the rear part of the auxiliary plate is It engages with the long guide groove and moves back and forth along it. Therefore, sickle member The forward and backward movements are always reliable and smooth.   d) Moreover, the rotation of the hub causes the guide pin of the sickle member to move into the long guide groove. By advancing along and moving to the curved portion continuing to the front of the long groove portion as it is, The hook-shaped part at the tip turns upward or downward and is hooked in the receiving metal fitting. That Therefore, turning the hook-shaped part at the tip of the sickle member upward or downward does not cause any hindrance. The operation is accurate and accurate, and no operational trouble occurs.

[0037]   e) And the vertical movement width in which the hook-shaped portion at the tip moves by the rotation of the sickle member is The sickle member of the sliding door lock of the second invention is such that the horizontally long portion of the sickle member itself is long without using a link. The connecting pin at the rear part serves as a fulcrum for rotation. Therefore, provisional Even if the rotation angle of the sickle member is the same as the conventional one, the horizontally long part of the sickle member is The vertical movement width of the hook-shaped part at the tip can be increased as much as it is longer. This allows Even if there is an error in the mounting position between the sliding door lock and the receiving metal fitting, the hook shape part To reach the position of the latching member within the bracket with a margin and to obtain a secure locked state. You can

[0038]   f) With regard to the rotation of the sickle member, in the sliding door lock of the second invention, the sickle member is horizontally long. An auxiliary plate is connected to the rear part of the shaped part, but unlike the one using a conventional link, this This is the case when the back set is large and the lock case is long, so the sickle member itself It is as long as the first one. Therefore, the sickle member is connected to the rear part. When the connecting pin is rotated about the fulcrum, the tip of the sliding door is locked like the sliding door lock of the first invention. The vertical width of movement of the hook-shaped part is large, so a secure locked state can be obtained. It

[0039]   g) Also, with the sliding door lock of the above first and second inventions, the sliding door cannot be pushed in the locked state. When it is about to be opened, the guide pin of the sickle member locks the external force. It is received by being hooked at the tip of the long groove portion 7 for guide of Unlike the above, it is not transmitted to other parts. Moreover, unlike conventional products, the number of parts However, the guide pin is thick and has sufficient strength. By this Is the Riko sliding door lock strong enough and strong compared to the conventional one? Even if the sliding door is forcibly opened when locked, And have sufficient reliability.

[0040]   h) When the sliding door is closed with the hook-shaped part at the tip of the sickle member protruding, Even if it hits the metal fittings, the pressing force of the sickle member causes the guide pins to move toward the front of the bay. The curved portion can be reliably and smoothly moved to the long groove portion for guide. Therefore, sickle member Overcomes the section spring that presses the hub and retracts, causing the tip of the hook or the The metal fitting does not receive an excessive impact force and can prevent damage.   i) Make sure that the shape of the curved portion near the front of the long guide groove is close to the guide. At the rear inner surface, which the contact pin hits when trying to move from the locked state to the unlocked direction, move backward With a bulging shape, the guide located at the tip of the curved part when locked Since the work pin is more easily moved rearward along the curved portion, The unlocking operation can be performed more smoothly.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an unlocked state in a first embodiment of a sliding door lock according to the present invention.

FIG. 2 is a vertical cross-sectional side view showing the sliding lock shown in FIG. 1 in the middle of locking.

FIG. 3 is a vertical cross-sectional side view showing a locked state of the pull lock shown in FIG.

FIG. 4 is a perspective view showing one side plate portion of the lock case of the pull-hold lock shown in FIG. 1.

5 is a perspective view showing the other side plate portion of the lock case of the pull lock shown in FIG. 1. FIG.

FIG. 6 is a perspective view showing a sickle member used in the embodiments of the first and second sliding door locks according to the present invention.

FIG. 7 is a perspective view showing a hub used in an embodiment of the first and second sliding door locks according to the present invention.

FIG. 8 is a perspective view showing a guide pin used in the first and second embodiments of the sliding door lock according to the present invention.

FIG. 9 is a vertical sectional side view showing an unlocked state of the second embodiment of the sliding door lock according to the present invention.

FIG. 10 is a vertical sectional side view showing a locked state of the sliding door lock shown in FIG. 9.

11 is a side view showing one side plate portion of the lock case of the sliding door lock shown in FIG. 9. FIG.

12 is a perspective view showing an auxiliary plate used in the sliding door lock shown in FIG.

[Explanation of symbols]

1 lock case 2 front plate 3 Side plate Round hole for 4 hubs 5 hubs 6 shafts 7 Long groove for guide 8 scythe members 9 Hook shape part 10 Horizontally elongated part 11 Guide pin 12 connecting pins 13 section springs 14 Auxiliary plate 15 Second connecting pin 16 sliding doors 17 Curved part 17a rear inner surface 18 square axes 19 door frame 20 bracket 21 Hook member 22 round hole 23 round hole 24 Bifurcated part 25 square hole 26 Locking Outer Part 27 Locking piece 28 round holes 29 screw holes 30 holes 31 sound deadening sleeve 32 front plate 33 Vertical hole

Claims (17)

[Scope of utility model registration request] 1. A hub (5) having a locking outer peripheral portion (26), a sickle member (8), and a hub (1) on a lock case (1) having laterally long side plate portions (3, 3). 5) A section spring (13) for pressing the locking outer peripheral portion (26) so that the rotation of the hub (5) can be locked at a specific position, and the sickle member (8) rotates the hub (5). The door frame body (1) can be moved forward and backward by the forward movement of the door frame body (1) by protruding from the lock case (1) and rotating upward or downward.
9) It can be hooked on the receiving metal fitting (20), and when it moves rearward, it pivots in the upside-down direction so as to be retracted into the lock case (1) and project from the lock case (1), and the sliding door is kept. It is provided with a hook-shaped part (9) at its tip, which when closed, moves rearward due to a collision with the receiving metal fitting (20) and pivots downward or upward to sink into the lock case (1). Characteristic lock for sliding doors. 2. The sickle member (8) is provided with a horizontally elongated portion (10) continuing rearward from the hook-shaped portion (9) at the tip, and the rear portion of this horizontally elongated portion (10) is a connecting pin (12). 2. The hub (5) is connected to the hub (5) by means of.
The described lock for sliding doors. 3. The sickle member (8) is formed by joining two steel plates together, and the laterally elongated portion (10) of the sickle member (8) is made of a single steel plate near the rear portion thereof and the hub ( The lock for a sliding door according to claim 2, wherein the connecting pin (12) for connecting with 5) can be inserted. 4. The connecting pin (12) is connected to the hub (5) so as to be movable in the radial direction of the hub (5). Sliding door lock. 5. A horizontally long portion (10) of the sickle member (8).
Is connected via a connecting pin (12) to the side of the hub (5) opposite the locking outer periphery (26). Sliding door lock. 6. The metal fitting (20) for the hook-shaped portion (9).
The sliding door lock according to any one of claims 1 to 5, characterized in that the loci of movement when the vehicle collides with and is immersed in the lock case (1) and when projected from the lock case (1) are different. 7. The hub (5) locking outer peripheral portion (26) is formed in a tapered shape.
6. The sliding door lock according to any one of 6 8. The section spring (13) has a locking outer peripheral portion (26) for locking rotation of the hub (5) when the sickle member (8) is in the most advanced state and the most advanced state. The sliding door lock according to any one of claims 1 to 7, which is configured to be pressed. 9. The lock case (1) according to any one of claims 1 to 8, wherein a rear end of the lock case (1) is formed in an arc shape centered on a rotation axis of the hub (5). The described lock for sliding doors. 10. The hub (5) is arranged such that the rotation axis thereof is closer to the rear part of the lock case (1) and closer to the upper part or the lower part thereof, and the rear end of the lock case (1) is the lock case (1). (1)
The lock for a sliding door according to claim 9, wherein the lock is formed in an arc shape that is asymmetrical above and below. 11. Both side plate portions (3, 3) of the lock case (1).
A hub round hole (4) for rotatably supporting the shaft portion (6) of the hub (5) is formed in the hub. The operation member is provided in front of and behind the hub round hole (4). The sliding door lock according to any one of claims 1 to 10, wherein a through hole (30) for a connecting screw that connects the inside and outside of the sliding door is formed. 12. The lock case (1) according to any one of claims 1 to 11, wherein the hook-shaped portion (9) is provided with a silencing sleeve (31) in a vertically elongated hole (33) for entrance and exit. The sliding door lock described in Crab. 13. An opening is formed on the upper surface and the lower surface of the lock case, and a section spring (13) corresponding to one opening.
The lock for a sliding door according to any one of claims 1 to 12, wherein the lock is provided. 14. The sickle member (8) is provided with a horizontally elongated portion (10) continuing rearward from the hook-shaped portion (9) at the tip, and a connecting pin (12) is provided at the rear portion of the horizontally elongated portion (10). Is provided to rotatably support the auxiliary plate (14) for extension of the backset, and the second connecting pin (15) is provided near the rear part of the auxiliary plate (14).
2. The lock for a sliding door according to claim 1, wherein the lock is installed horizontally and is connected to the hub (5). 15. The sickle member (8) is made by joining two steel plates together, and the laterally elongated portion (10) of the sickle member (8) is
Toward the rear part, make one steel plate and connect the pin (1
15. The method according to claim 14, wherein 2) is insertable.
The described lock for sliding doors. 16. A front plate (2) and laterally long side plate parts (3).
The front plate (2) has a vertically elongated hole (33) for entry and exit in the central part of the front plate (2), and the upper and lower parts of the front plate (2). The side plate portion (3) is horizontally long, and a hub round hole for pivotally supporting the shaft portion (6) of the hub (5) at an upper position near the rear portion of the hub. (4) is formed, the sickle member (8) is formed by joining two steel plates together, and a hook-shaped portion (9) at the tip and a horizontally-long portion (10) following the hook-shaped portion (9).
And the sickle member (8) is bent at an angle of approximately 90 degrees with respect to the laterally elongated portion (10), and the laterally elongated portion (10) of the sickle member (8) is located near the rear portion. The plate is made into one plate and the connecting pin (12) for connecting with the hub (5) is inserted, and the hub (5) has an angular axis (18) such as a knob of an operating member at the center thereof. It has a square hole (25) that can be engaged, and its both sides are rotatably supported by the hub circular hole (4) of the lock case (1) with the shaft portion (6).
The hub (5) is engaged and connected with the connecting pin (12), and has an upper peripheral portion (26) for locking which is pressed by the section spring (13) on the upper portion, The section spring (13) is formed as a horizontally long leaf spring, and both ends of the section spring (13) are locked to upper portions inside the side plate portion (3) of the lock case (1) to lock the outer periphery of the hub (5). Department (2
6) A sliding door lock characterized by being able to press. 17. A front plate (2) and laterally long side plate parts (3).
The front plate (2) has a vertically elongated hole (33) for entry and exit in the central part of the front plate (2), and the upper and lower parts of the front plate (2). The side plate portion (3) is horizontally long, and a hub round hole for pivotally supporting the shaft portion (6) of the hub (5) at an upper position near the rear portion of the hub. (4) is formed, the sickle member (8) is formed by joining two steel plates together, and a hook-shaped portion (9) at the tip and a horizontally-long portion (10) following the hook-shaped portion (9).
And the sickle member (8) is bent at an angle of approximately 90 degrees with respect to the laterally elongated portion (10), and the laterally elongated portion (10) of the sickle member (8) is located near the rear portion. A connecting pin (12) for connecting with the hub (5) is inserted through the plate as one plate, and the hub (5) has an angular axis (18) such as a knob of an operating member at the center thereof. Has a square hole (25) capable of engaging with, and is rotatably supported by the hub round hole (4) of the lock case (1) with its both side portions as the shaft portion (6).
The hub (5) is engaged and connected with the connecting pin (12), and has an upper peripheral portion (26) for locking which is pressed by the section spring (13) on the upper portion, The section spring (13) is formed as a horizontally long leaf spring, and both ends of the section spring (13) are locked to upper portions inside the side plate portion (3) of the lock case (1) to lock the outer periphery of the hub (5). Department (2
6) can be pressed, the sickle member (8) can be moved back and forth by the rotation of the hub (5), and when the sickle member (8) moves forward, the hook-shaped part (9) at the tip is locked to the lock case (1). ) And pivots upward with the connecting pin (12) as a fulcrum so that it can be hooked on the receiving metal fitting (20) of the door frame (19), and the connecting pin (12) can be moved during backward movement. The hook-shaped portion (9) at the tip is configured to be immersed in the lock case (1) by pivoting downward to the fulcrum, and the sickle member (8) further locks the hook-shaped portion (9). When the sliding door is closed while protruding from the case (1), the hook-shaped portion (9) is moved backward by the collision with the receiving metal fitting (20) and pivoted downward to be retracted into the lock case (1). A lock for a sliding door, which is configured as follows.