Auxiliary lock device

Abstract

To disclose an example of an auxiliary lock device that can have its functions suppressed from being spoiled greatly even if large force acts on a sliding door.SOLUTION: A bar member 13 is provided with restriction pieces 13D, 13E at positions facing locked pieces 13A, 13B across first lock pieces 12A, 12B. Consequently, when large force opening a sliding door acts on the sliding door, the restriction pieces 13D, 13E approach the first lock pieces 12A, 12B of a rail member 12. Then when the restriction pieces 13D, 13E abut on the first lock pieces 12A, 12B, the restriction pieces 13D, 13E are restricted from being displaced, so the a second lock piece 13C is restricted from being displaced. This auxiliary lock device can therefore have its functions suppressed from being spoiled greatly even if large force acts on the sliding door.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to an auxiliary lock device applied to a window device. [Background technology]

[0002] For example, the auxiliary locking device described in Patent Document 1 comprises a "base body (1) having a rail portion (2) provided with a saw-tooth shaped first locking portion," a "locking / unlocking portion (5) that engages with the first locking portion (3) to enable locking / unlocking," a "lock body (4) that is regulated by the rail portion (2) and guides the longitudinal movement of the locking / unlocking portion (5)," a "rising portion (14) that rises from one end of the lock body (4), and a "second locking portion (6) that protrudes outward from the tip of the rising portion (14)." Note that the symbols in parentheses are the symbols described in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model No. 3017474 Summary of the Invention [Problem to be solved by the invention]

[0004] In the auxiliary locking device described in Patent Document 1, when a large force acts on the single-leaf door (12) (see FIG. 3 of Patent Document 1), there is a high possibility that the rising portion (14) will be deformed or displaced relative to the base body (1). If the rising portion (14) is deformed or displaced, the second engagement portion (6) may come off the single-leaf door (12), thereby impairing the function of the auxiliary locking device.

[0005] In consideration of the above points, the present disclosure discloses an example of an auxiliary locking device that can prevent the function of the auxiliary locking device from being significantly impaired even when a large force is applied to a sliding door such as a single-leaf door. [Means for solving the problem]

[0006] An auxiliary locking device applied to a window device comprising a frame (2) attached to an opening in a building and a screen (3) that is swingably connected to the frame (2) and opens the opening by swinging outward relative to the frame (2), desirably comprises at least one of the following components.

[0007] In other words, the constituent elements are a rail member (12) fixed to a shoji screen (3), the rail member (12) having first engagement portions (12A, 12B) at portions curved in an approximately J-shape or Z-shape provided at one end and the other end in the width direction, and a latch member (13) having latched portions (13A, 13B) that are hooked onto and latched with the first engagement portions (12A, 12B) and that can be displaced along the longitudinal direction of the rail member (12) while connected to the rail member (12) at the latched portions (13A, 13B), the latch member (13) having a second engagement portion (13C) that can be engaged with the indoor side of the frame portion (2), and regulating portions (13D, 13E) provided at positions facing the latched portions (13A, 13B) across the first engagement portions (12A, 12B).

[0008] As a result, when a large force is applied to the door (3), the restricting portions (13D, 13E) come into contact with the first locking portions (12A, 12B) of the rail member (12), thereby suppressing the displacement of the second locking portion (13C). Therefore, according to the auxiliary locking device, even when a large force is applied to the door (3), the function of the auxiliary locking device can be prevented from being significantly impaired.

[0009] Incidentally, the symbols in the above parentheses are examples showing the corresponding relationship with the specific configurations etc. described in the embodiments described below, and the present disclosure is not limited to the specific configurations etc. shown by the symbols in the above parentheses. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram showing a window device according to a first embodiment. [Diagram 2] 1 is a diagram showing a window device according to a first embodiment. [Diagram 3] 1 is a diagram showing an auxiliary lock device according to a first embodiment. [Figure 4] 3A and 3B are diagrams showing a rail member and a bar member according to the first embodiment. [Diagram 5] 3A and 3B are diagrams showing a rail member and a bar member according to the first embodiment. [Figure 6] FIG. 2 is a view showing a bar member according to the first embodiment. [Figure 7] FIG. 11 is a diagram showing an auxiliary lock device according to a second embodiment. [Figure 8] FIG. 13 is a diagram showing an auxiliary lock device according to a third embodiment. [Figure 9] FIG. 13 is a view showing a bar member according to a fourth embodiment. [Figure 10] 13A and 13B are diagrams showing a rail member and a bar member according to a fifth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The following "embodiment of the invention" shows an example of an embodiment that falls within the technical scope of the present disclosure. In other words, the invention-specific matters described in the claims are not limited to the specific configurations and structures shown in the following embodiment.

[0012] In addition, arrows and diagonal lines indicating directions in each figure are provided to facilitate understanding of the relationship between the figures and the shapes of each member or part. Therefore, the invention shown in this disclosure is not limited to the directions indicated in each figure. Diagonal lines do not necessarily indicate cross-sectional views.

[0013] At least one of the components or parts described with a reference number is provided, unless otherwise specified by "one". In other words, unless otherwise specified by "one", two or more of the components may be provided. The auxiliary lock device shown in the present disclosure includes at least one of the components such as the components or parts described with a reference number and the structural parts shown in the drawings.

[0014] (First embodiment) <1. Overview of the window device> In this embodiment, an example of the auxiliary lock device according to the present disclosure is applied to a window device. The window device may be, for example, a horizontal sliding window, a vertical sliding window, or a single opening window.

[0015] As shown in Fig. 1, the window device 1 at least comprises a frame 2 and a screen 3. The frame 2 is a frame body attached to an opening of a building. The screen 3 is a generally plate-shaped member connected to the frame 2 so as to be able to swing.

[0016] The screen 3 is displaceable between a position where the opening is opened (see FIG. 1) and a position where the opening is closed (see FIG. 2). When the screen 3 is in the position where the opening is opened, the screen 3 is located outside the frame 2 (see FIG. 1).

[0017] <2. Auxiliary locking device> The auxiliary locking device 10 is a locking device that complements the locking effect of the main locking device 4 (see FIG. 2). As shown in FIG. 3, the auxiliary locking device 10 at least includes a lock main body 11, a rail member 12, a bar member 13, and the like.

[0018] <2.1 Rail components> 2, the rail member 12 is a member fixed to the shoji screen 3. The rail member 12 according to this embodiment is fixed to the shoji screen 3 with double-sided tape 12C (see FIG. 4) and screws such as screws. Hereinafter, the direction perpendicular to the longitudinal direction of the rail member 12 is referred to as the width direction.

[0019] As shown in Fig. 4, one end side and the other end side of the rail member 12 in the width direction are provided with portions curved in a substantially J shape. Therefore, the cross section of the rail member 12 in the width direction is configured to be a flattened substantially C shape (see Fig. 5). First locking pieces 12A, 12B are provided in the curved portions.

[0020] The first locking pieces 12A and 12B are provided with an engagement portion 12D that is composed of a number of projections and recesses. The engagement portion 12D according to this embodiment is configured in a triangular wave-like projection and recess shape. The first locking pieces 12A and 12B are integral parts that are integrally formed with the rail member 12 by applying plastic processing to the metal plate that constitutes the rail member 12.

[0021] <2.2 Lock body> The lock body 11 is slidable relative to the rail member 12 along the longitudinal direction of the rail member 12. The lock body 11 has the function of switching between a locked state and an unlocked state. The locked state is a state in which the lock body 11 is hooked and engaged with the engagement portion 12D, thereby preventing sliding. The unlocked state is a state in which the engagement is released.

[0022] A user can switch between the locked state and the unlocked state by inserting a key (not shown) into the keyhole 11A (see FIG. 3) of the lock body 11 and turning the key. Incidentally, FIG. 3 shows the lock body 11 in the locked state.

[0023] <2.3 Bolt parts> The bar member 13 is a member that is fixed to the lock body 11 and can be engaged with the frame portion 2 (see FIG. 2). Note that the bar member 13 according to this embodiment is fixed to the lock body 11 by double-sided tape (not shown) affixed to the second rising portion 13H (see FIG. 6).

[0024] 6, the bar member 13 has at least locked pieces 13A and 13B, a second locking piece 13C, and restricting pieces 13D and 13E, etc. The locked pieces 13A and 13B are the parts shaded with two-dot chain lines in FIG.

[0025] 5, the latched pieces 13A and 13B are portions that are caught and latched by the first latching pieces 12A and 12B. The bar member 13 is slidable along the longitudinal direction of the rail member 12 in a state in which it is latched and connected to the rail member 12 via the latched pieces 13A and 13B.

[0026] As shown in Fig. 2, the second locking piece 13C is a portion that can be locked to the indoor side of the frame portion 2 when the window device 1 is locked in the closed state. As shown in Fig. 5, the restricting pieces 13D and 13E are portions provided at positions facing the locked pieces 13A and 13B with the first locking pieces 12A and 12B in between.

[0027] As shown in FIG. 6, the latch member 13 of this embodiment has, in addition to the latchable pieces 13A, 13B, the second latching piece 13C, and the regulating pieces 13D, 13E, a base portion 13F, a first raised portion 13G, and a second raised portion 13H, etc.

[0028] The base plate portion 13F is a plate-like portion having the engaging pieces 13A and 13B provided at one end and the other end in the width direction. The first rising portion 13G is a portion of the base plate portion 13F that rises from one end of the rail member 12 in the longitudinal direction in a direction intersecting with the plate surface of the base plate portion 13F.

[0029] The second locking piece 13C is formed of a plate-like portion extending in the longitudinal direction from the leading end side of the first rising portion 13G in the rising direction. The restricting pieces 13D and 13E are formed of plate-like portions extending in the longitudinal direction from one end side and the other end side of the width direction of the first rising portion 13G.

[0030] The restricting pieces 13D and 13E extend in a direction opposite to the direction of the second locking piece 13C, that is, the restricting pieces 13D and 13E extend in a direction from the first rising portion 13G toward the second rising portion 13H.

[0031] The second rising portion 13H is a portion rising from the other end side of the base plate portion 13F in the longitudinal direction in a direction intersecting with the plate surface of the base plate portion 13F. The extending end portions 13J of the restricting pieces 13D and 13E face the second rising portion 13H.

[0032] The latched pieces 13A and 13B, the second latching piece 13C, the regulating pieces 13D and 13E, the base portion 13F, the first raised portion 13G, and the second raised portion 13H, i.e., the latch member 13, are an integrated item formed by bending a single metal plate.

[0033] <3. Features of the auxiliary lock device according to this embodiment> In the bar member 13 according to this embodiment, the regulating pieces 13D and 13E are provided at positions facing the locked pieces 13A and 13B with the first locking pieces 12A and 12B in between (see FIG. 5). As a result, when a large force acts on the door 3 in a direction to open the door 3, the regulating pieces 13D and 13E approach the first locking pieces 12A and 12B of the rail member 12.

[0034] When the restricting pieces 13D and 13E come into contact with the first locking pieces 12A and 12B, the displacement of the restricting pieces 13D and 13E is restricted, so that the displacement of the second locking piece 13C can be suppressed. Therefore, according to the auxiliary locking device 10, even if a large force acts on the door 3, the function of the auxiliary locking device 10 can be prevented from being significantly impaired.

[0035] The extending end 13J of the restricting pieces 13D, 13E faces the second rising portion 13H. As a result, even if the force is large and the restricting pieces 13D, 13E are deformed so as to shift toward the lock body 11, the end 13J comes into contact with the second rising portion 13H, so that the displacement of the restricting pieces 13D, 13E is reliably restricted.

[0036] Second embodiment As shown in Fig. 7, the auxiliary lock device 10 according to this embodiment is an example in which an engagement portion 13K that can be engaged with the protrusion 11B of the lock body 11 is provided on the second rising portion 13H. Note that the same components as those in the above-mentioned embodiment are given the same reference numerals as those in the above-mentioned embodiment. Therefore, in this embodiment, duplicated explanations are omitted.

[0037] Third embodiment As shown in Fig. 8, the auxiliary lock device 10 according to this embodiment is an example in which a cover portion 13L is provided to cover a part of the lock body 11 from three sides. The same components as those in the above-mentioned embodiment are given the same reference numerals as those in the above-mentioned embodiment. Therefore, in this embodiment, duplicated explanations are omitted.

[0038] (Fourth embodiment) The bar member 13 according to the above embodiment is an integral part formed by bending a single metal plate. In contrast, the bar member 13 according to the present embodiment is made of a block of metal or resin, as shown in FIG.

[0039] In addition, the same components as those in the above-described embodiment are denoted by the same reference numerals as those in the above-described embodiment, and therefore, in this embodiment, duplicated explanations are omitted. Fifth embodiment In this embodiment, as shown in Fig. 10, a Z-shaped curved portion is provided at one end side and the other end side in the width direction of the rail member 12, and the first locking pieces 12A, 12B are provided at the portion. Note that the same components as those in the above-mentioned embodiment are denoted by the same reference numerals as those in the above-mentioned embodiment. Therefore, in this embodiment, a duplicated description is omitted.

[0040] (Other embodiments) In the above-described embodiment, the bar member 13 is fixed to the lock body 11. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that the bar member 13 and the lock body 11 are separate from each other.

[0041] The restricting pieces 13D and 13E according to the above-described embodiment are configured as substantially rectangular plate-shaped portions. However, the present disclosure is not limited thereto. That is, in the present disclosure, for example, the restricting pieces 13D and 13E may be configured as substantially right-angled triangular plate portions with the locked pieces 13A and 13B at the base.

[0042] The rail member 12 according to the embodiment described above is provided with the engagement portion 12D configured with triangular wave-like projections and recesses. However, the present disclosure is not limited to this. That is, the present disclosure may be configured, for example, such that the engagement portion 12D is eliminated and the locked state is achieved by utilizing frictional force.

[0043] In the above embodiment, the extending direction tip 13J of the restricting pieces 13D and 13E and the second rising portion 13H are opposed to each other with a gap therebetween. However, the present disclosure is not limited to this. That is, the present disclosure may be, for example, a configuration in which the gap is eliminated.

[0044] The locked pieces 13A, 13B according to the above-described embodiment are continuous from the first rising portion 13G to the second rising portion 13H along the longitudinal direction of the rail member 12. However, the present disclosure is not limited to this.

[0045] That is, the disclosure may be configured such that the recess is provided only in a predetermined range from the first rising portion 13G. The predetermined range refers to, for example, about 1 / 4 to 1 / 3 of the dimension from the first rising portion 13G to the second rising portion 13H.

[0046] The bar member 13 according to the above embodiment is an integral part formed by bending a single metal plate. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, the restricting pieces 13D and 13E are welded to the first rising portion 13G.

[0047] In the above embodiment, the auxiliary lock device according to the present disclosure is applied to a window device having a sliding door 3 that swings outward relative to the frame 2. However, the present disclosure is not limited to this. That is, the present disclosure is also applicable to, for example, an auxiliary lock device for a glass sliding door (sliding door) installed on a shelf, or an auxiliary lock device for other sliding doors (sliding doors).

[0048] Specifically, the auxiliary locking device is applied to two shoji screens that open and close an opening by sliding against each other, and comprises a rail member that is engaged with the first shoji screen, the rail member having a first engaging portion at a curved portion that is approximately J-shaped or Z-shaped and provided at one end and the other end in the width direction, and a latch member that has an engaged portion that hooks onto and is engaged with the first engaging portion, and that can be displaced along the longitudinal direction of the rail member while connected to the rail member at the engaged portion, and the latch member has a second engaging portion that can be engaged with the second shoji screen, and a regulating portion provided at a position opposite the engaged portion across the first engaging portion of the rail member.

[0049] Furthermore, the present disclosure is not limited to the above-mentioned embodiments as long as it is consistent with the gist of the disclosure described in the above-mentioned embodiments. Therefore, the present disclosure may be a configuration in which at least two of the above-mentioned embodiments are combined, or a configuration in which any of the components illustrated or the components described with reference numerals in the above-mentioned embodiments are eliminated. [Explanation of symbols]

[0050] 1... Window device 3... Shoji screen 4... Main lock device 10: Auxiliary locking device 11: Lock body 12: Rail member 12A, 12B...first locking piece 13...bark member 13A, 13B…Locked piece 13C…Second locking piece 13D, 13E… Regulatory piece

Claims

1. An auxiliary lock device is applied to a window device having a frame part attached to an opening of a building and a sliding door that is swingably connected to the frame part and swings outward relative to the frame part to open the opening, A rail member fixed to the shoji screen, the rail member having a first engaging portion at a curved portion in a substantially J-shape or Z-shape provided at one end side and the other end side in the width direction; a bar member having a latched portion that is hooked onto and latched with the first latching portion, and that is displaceable along the longitudinal direction of the rail member in a state in which the bar member is connected to the latched portion, The bar member is A second locking portion that can be locked to the indoor side of the frame portion, and a restricting portion provided at a position facing the locked portion across the first locking portion; An auxiliary locking device having

2. The bar member is A plate-shaped base plate portion having the engaged portion provided on one end side and the other end side in the width direction, and The substrate portion has a rising portion rising from one end side of the longitudinal direction in a direction intersecting with a plate surface of the substrate portion, The second locking portion is formed of a plate-like portion extending in the longitudinal direction from a tip end side of the rising portion in a rising direction, The auxiliary lock device according to claim 1, wherein the regulating portion is constituted by a plate-like portion extending in the longitudinal direction from one end side and the other end side of the width direction of the rising portion.

3. The auxiliary lock device according to claim 2 , wherein the restricting portion extends in a direction opposite to a direction in which the second engaging portion extends.

4. The bar member is a second rising portion rising from the other end side of the base plate portion in the longitudinal direction in a direction intersecting with a plate surface of the base plate portion, The auxiliary lock device according to claim 3 , further comprising a tip end of the restricting portion in the extending direction facing the second rising portion.

5. a lock body to which the bar member is fixed and which is displaceable together with the bar member relative to the rail member; 5. An auxiliary lock device as claimed in claim 1, wherein the lock body is switchable between a locked state in which it cannot be displaced relative to the rail member and an unlocked state in which it can be displaced relative to the rail member.

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