Slide latch

Abstract

We provide a slide latch that enables 100% recycling and prevents contamination. [Means for solving the problem] The slide latch comprises a bolt portion 200, a main body portion 100, and a strike 300, each made of resin. The main body portion 100 has a front main body surface portion 11 and a back main body surface portion 12 facing each other across a panel 70 having a notch 71, and the main body fitting portions 13 and 14 are housed in the notch 73. The strike 300 has a front strike surface portion 41 and a back strike surface portion 42 facing each other across a panel 60 having a notch 64, and the strike fitting portion 48 is housed in the notch 64. An operating part 30 provided on the bolt portion 200 can be operated from the operating opening 27.

Description

Technical Field

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[0001] The present invention relates to a resin slide latch for fixing a resin door to the side of a resin box on the box body side.

Background Art

[0002] The storage containers used in passing boxes for transporting parts between factories are made of a plate material mainly composed of a resin such as polypropylene (PP). Among such storage containers, there are some with a door provided on the side. In that case, there is a current situation where a hook-and-loop fastener is used to fix the door to the box body. The hook-and-loop fastener is a factor that hinders the full PP conversion of the storage container and is also a factor causing contamination due to the attachment of thread scraps.

[0003] Patent Document 1 discloses a latch lock created by a plastic case and a latch body. When a mounting hole is drilled in the panel to be mounted and this latch lock is pushed into the mounting hole from the outside of the panel surface while tilting the whole downward, the retaining claws provided on the latch lock pass through the mounting hole while elastically deforming. In a state where the whole latch lock has entered the mounting hole, the flange wall on the latch lock side and the retaining claws sandwich the inner and outer surfaces of the mounting hole of the panel, and the latch lock can be fixed to the panel.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] According to the latch lock of Patent Document 1, thread scraps adhere vinegarThis avoids the problem of contamination. Furthermore, the case has a retaining claw, allowing it to be attached to a panel, eliminating the need for screws or other fasteners. However, a coil spring or torsion spring is housed within the case to bias the latch body from the released position inside the case to the locked position outside, making a complete PP (polypropylene) construction difficult.

[0006] Furthermore, corrugated plastic is the main resin sheet material used for returnable containers, but corrugated plastic has a hollow structure with ribs connecting two sheets. Therefore, even if the flange wall and retaining claw on the latch lock side try to clamp the inner and outer surfaces of the mounting hole in the corrugated plastic, the flange wall and retaining claw only come into contact with the front and back sheets of the corrugated plastic, respectively, and the inside of the front and back sheets cannot be firmly supported because they have a hollow structure.

[0007] Furthermore, if the door frame that receives the entire door is also made of corrugated plastic, it will not be able to stably support the latch when it is moved to the locking position on the door frame side. Patent Document 2 shows an example of a strike (receiving seat) provided on the door frame side, but a fixing device is required to attach it to the door frame side.

[0008] The objective of this invention is to provide a slide latch that enables 100% recycling by having a configuration that allows for the use of PP (polypropylene) as the entire material, and that prevents contamination. [Means for solving the problem]

[0009] To solve the above problems, the present invention provides a resin bolt and A resin body part having a front body surface and a back body surface connected by a body side end, an operating opening in the front body surface, an exit opening for the tip of the bolt to enter and exit at the body side end, the front body surface and the back body surface facing each other by folding along a fold line provided between the front body surface or the back body surface and the body side end, the body fitting parts provided on each of the front and back body surfaces joining together, and the plan view shape of the joined body fitting parts forming a first specific polygon shape, A slide latch comprising a resin strike, the front strike surface portion and the back strike surface portion being connected by a strike-side end, an exit opening for the tip of the bolt portion to enter and exit at the strike-side end, the front strike surface portion and the back strike surface portion being able to be brought into direct opposition by folding along a fold line provided between the front strike surface portion or the back strike surface portion and the strike-side end, the strike fitting portions provided on each portion joining together when the front strike surface portion and the back strike surface portion are facing each other, and the plan view shape of the joined strike fitting portions forming a second specific polygonal shape, The main body portion is arranged with the front main body surface portion and the back main body surface portion facing each other across one panel, which has a through-hole first notch having a specific first polygonal shape, and the main body fitting portion is housed in the first notch. The strike is characterized in that the front strike surface and the back strike surface face each other across the other panel, which is provided with a through-hole second notch having a specific polygonal shape, the strike fitting portion is housed in the second notch, and the operating portion provided on the bolt portion can be operated from the operating opening. [Effects of the Invention]

[0010] According to the slide latch of the present invention 、The main body is installed by folding the front and back surfaces and fitting the respective mating parts together, sandwiching the door. Similarly, the strike of this invention is installed by folding the front and back surfaces and fitting the respective mating parts together, sandwiching the door frame. For this reason, it can be installed even if a hollow structure of corrugated plastic is used for the door or door frame. Furthermore, since the main body and strike are not directly pressed, screwed, or glued to the door or door frame, but can be installed in a self-contained manner, it is possible to make the entire product from PP. Moreover, since adhesives such as hook-and-loop fasteners and double-sided tape are not used, it does not generate contamination such as lint. [Brief explanation of the drawing]

[0011] [Figure 1] This is a diagram showing the main body. [Figure 2] This is a diagram showing the bolt section. [Figure 3] This is a diagram showing the receiving part. [Figure 4] This diagram shows how the main body and the bolt are joined together. [Figure 5] This figure shows the usage state. [Figure 6] This is a diagram showing part of the process. [Best Mode for Carrying Out the Invention]

[0012] The slide latch according to an embodiment of the present invention will be described below with reference to the drawings. The slide latch is formed from three parts: a main body 100, a bolt 200, and a strike 300.

[0013] First, the main body 100 is shown in FIG. 1. The main body 100 is integrally molded with a plastic resin. FIG. 1A is a front view, FIG. 1B is a rear view, and FIG. 1C is a view in a folded state. The main body 100 is line symmetric with respect to the c-axis passing through the center of the vertical width. The main body 100 has a front main body surface portion 11, a rear main body surface portion 12, and a main body side end portion 22. It is bent along the fold line 10 between the rear main body surface portion 12 and the main body side end portion 22 so that the front main body surface portion 11 and the rear main body surface portion 12 face each other. At this time, the main body fitting portion 13 on the front main body surface portion 11 side and the main body fitting portion 14 of the rear main body surface portion 12 are fitted to each other, and the fitting portion 15 on the front main body surface portion 11 side and the fitting portion 16 of the rear main body surface portion 12 are fitted to each other. The main body fitting portion 13 has a frame-shaped fitting portion 13a. The main body fitting portion 14 has a wall-shaped fitting portion 14a corresponding to the short side of the fitting portion 13a. When the main body fitting portion 13 and the main body fitting portion 14 are fitted, a rectangular fitting shape is formed in plan view by the fitting portions 13a and 14a. Incidentally, the main body fitting portion 13 c-axis is provided in a pair with the [portion] in between, but these may be integrally connected. Also, the rear main body surface portion 12 c-axis is provided in a pair with the [portion] in between, but these may be integrally connected.

[0014] Also, the main body fitting portion 13 on the front main body surface portion 11 side and the main body fitting portion 14 of the rear main body surface portion 12 each have key-shaped claws 13b and 14b that are long in the vertical direction in the drawing and fit with each other. The fitting portion 15 on the front main body surface portion 11 side and the fitting portion 16 of the rear main body surface portion 12 each have claws that are long in the vertical direction. By the claws of these fitting portions 15 and 16 fitting vertically and horizontally, the front main body surface portion 11 and the rear main body surface portion 12 are prevented from shifting vertically and horizontally.

[0015] On the front main body surface portion 11, c-axis an operation port 27 opens along [it], and the operation portion 30 of the latch portion 200 ( See below ) can be seen. Handles 20 that function as door knobs are provided above and below the operation port 27. Also, a slide rail 17 is provided between the handle 20 and the operation port 27, and the latch portion 200 slides horizontally on the slide rail 17 ( c-axis It moves between the locked position and the released position in the (direction). Further, the latch portion 200 is prevented from moving to the rear end in the lateral direction ( c-axis direction) by the main body fitting portions 13 and 14, and is prevented from moving in the vertical direction (orthogonal to the c-axis line) by the handle 20 and the fitting portions 15 and 16.

[0016] On the front side of the front main body surface portion 11 (the side opposite to the rear main body surface portion 12, FIG. 1B), protruding position marks 19 are provided above and below the operation port 27. The position marks 19 indicate the locked position and the released position of the latch portion 200.

[0017] At the vertical center of the main body side end portion 22, an access port 24 is provided so that when the latch portion 200 moves in the c-axis line direction, the tip portion 35 (described later, refer to FIG. 2) can protrude outward from the front main body surface portion 11 and the rear main body surface portion 12. Further, on the main body side end portion 22, a flange 25 protrudes in the lateral direction (c-axis line direction). The flange 25 is a portion that abuts against the door stop portion 40 (described later, refer to FIG. 3) of the strike 300 when the door is closed.

[0018] An emergency window 23 is open on the rear main body surface portion 12 so that the escape handle 33 (described later, refer to FIG. 2) of the latch portion 200 can be seen. Further, a movement direction mark 26 formed by a recess is provided. The movement direction mark 26 is a triangular mark that indicates movement in the opposite direction to the access port 24.

[0019] Figure 2 shows the bolt portion 200. The bolt portion 200 is a T-shaped member with its rear end (right side in the c-axis direction) protruding vertically, and is integrally molded from plastic resin. The bolt portion 200 is symmetrical with respect to the c-axis passing through the center of its vertical width. Figure 2A shows the side that abuts against the front main body surface portion 11, and Figure 2B shows the side that abuts against the back main body surface portion 12. In Figure 2A, the bolt portion 200 is provided with a projection-shaped operating portion 30 and a movement direction mark 31 formed by a recess. The movement direction mark 31 is a triangular mark that indicates movement toward the tip portion 35. The upper and lower sides of the tip portion 35 of the bolt portion 200 are provided with concave fitting portions 32. The projection 34 provided at the rear end of the bolt portion 200 is blocked by the fitting portion 15 and fitting portion 16, preventing the bolt portion 200 from falling out of the main body portion 100.

[0020] Figure 3 shows the strike 300. The strike 300 is integrally molded from plastic resin. The strike 300 is symmetrical with respect to the c-axis passing through the center of its vertical width. Figure 3A is a front view, and Figure 3B is a view of the folded state. The strike 300 has a front strike surface portion 41, a back strike surface portion 42, and a strike-side end portion 43. It is folded along the fold line 45 between the back strike surface portion 42 and the strike-side end portion 43 so that the front strike surface portion 41 and the back strike surface portion 42 face each other. On the inside of the front strike surface portion 41 that faces the back strike surface portion 42, a pair of catches 50 protrude across the c-axis. The catch 50 has a surface portion 50a parallel to the c-axis and a projection 50b protruding from the surface portion 50a toward the c-axis. The projection 50b is c-axis The fitting portion 32 of the bolt portion 200, which is moving upward, fits into place. A sliding surface portion 47 on which the bolt portion 200 slides is provided on the inside of the front strike surface portion 41.

[0021] When folded along the fold line 45, the strike fitting portion 48 on the front strike surface portion 41 and the strike fitting portion 49 on the back strike surface portion 42 fit together. The strike fitting portion 48 has a frame-shaped fitting portion 48a. The strike fitting portion 49 has a wall-shaped fitting portion 49a corresponding to the short side of the fitting portion 48a. When the strike fitting portion 48 and the strike fitting portion 49 are fitted together, the fitting portions 48a and 49a form a rectangular fitting shape in plan view. In this embodiment, this fitting shape is rectangular in plan view, but it may be a polygonal shape of other types. Also, the strike fitting portion 48 is c-axis They are provided in pairs on either side, but they may also be a single connected unit. Also, the strike fitting part 49 is c-axis They are provided in pairs, but they can also be a single connected unit.

[0022] The strike fitting portion 48 and the strike fitting portion 49 each have key-shaped claws 48b and 49b that have a length in the vertical direction in the drawing and fit together. In addition, a projection 44 is provided on the back side strike surface portion 42. When the projection 44 is bent along the fold line 45 between the back side strike surface portion 42 and the strike side end portion 43, it comes into contact with the surface portion 50a of the catch 50. As a result, the front side strike surface portion 41 and the back side strike surface portion 42 are prevented from shifting vertically and horizontally.

[0023] At the vertical center of the strike-side end 43, there is an exit 46 that allows the tip 35 to enter the inside of the front strike surface 41 and the back strike surface 42 when the bolt portion 200 moves laterally. In addition, the strike-side end 43 is provided with a door stop portion 40 that the flange 25 abuts against.

[0024] Figure 3B shows the notch 61 on the other side of the panel 60 (in this case, the door frame) where the strike 300 is fixed. The panel 60 is made of corrugated plastic. The notch 61 is H-shaped and penetrates from front to back, and consists of, in order from the edge, a notch 62 that accommodates the strike side end 43, a notch 63 that accommodates the catch 50 and through which the bolt portion 200 passes, and a notch 64 that accommodates the strike fitting portion 48 and the strike fitting portion 49. The notches 62 to 64 are rectangular notches. c-axis The notches are continuous in the direction, and the vertical length of notch 63 is shorter than that of the other notches.

[0025] The strike-side end 43 of the strike 300 is placed against the side surface 62a of the notch 62 and bent along the fold line 45. When the strike fitting portion 48 and the strike fitting portion 49 enter the notch 64 and fit together, the front strike surface portion 41 and the back strike surface portion 42 face each other. At this time, the strike fitting portion 48 and the strike fitting portion 49 are surrounded by the sides 64a, 64b, and 64c of the notch 64. If the dimensions of the notch 64 are set to match the rectangular fitting shape formed by the fitting portions 48a and 49a, the strike 300 will be stably fixed to the panel 60. It will be stably fixed even if the panel 60 is made of corrugated plastic with a hollow structure. Furthermore, there is no need to separately prepare fasteners such as screws to attach the strike 300 to the panel 60.

[0026] Figure 4 shows how the bolt 200 is housed in the main body 100. In Figure 4A, the operating part 30 of the bolt 200 is positioned so as to be exposed from the operating opening 27. In Figure 4B, the panel 70 (in this case, the door) on one side to which the main body 100 is attached has a notch 71 that penetrates through both sides beforehand. The panel 70 is made of corrugated plastic. Starting from the edge, it consists of a notch 72 that houses the fitting part 15 and the fitting part 16, and a notch 73 that houses the main body fitting part 13, the main body fitting part 14, and the handle 20. The notches 72 and 73 are rectangular notches. c-axis The notches are continuous in the direction, and the vertical length of notch 72 is shorter than that of notch 73.

[0027] The main body end 22 of the main body portion 100 is placed against the side surface 70a of the panel 70 and folded along the fold line 10. When the main body fitting portion 13 and the main body fitting portion 14 enter the notch 73 and fit together, the front main body surface portion 11 and the back main body surface portion 12 face each other. At this time, the main body fitting portion 13 and the main body fitting portion 14 are surrounded by the sides 73a, 73b, and 73c of the notch 73. If the dimensions of the notch 73 are set to match the rectangular fitting shape formed by the fitting portion 13a and the fitting portion 14a, the main body portion 100 will be stably fixed to the panel 70. It will be stably fixed even if the panel 70 is made of corrugated plastic with a hollow structure. Furthermore, there is no need to separately prepare fasteners such as screws to attach the main body portion 100 to the panel 70.

[0028] Figure 5 shows the operation of the slide latch in this embodiment. In the released state shown in Figure 5A, the operating unit 30 is aligned with the position mark 19 on the left side of the drawing. The movement direction mark 31 of the bolt 200 is visible in the operating opening 27, indicating movement to the right. On the other hand, in the locked state shown in Figure 5B, the operating unit 30 is aligned with the position mark 19 on the right side. The movement direction mark 26 is visible in the operating opening 27, indicating movement to the left. In Figure 5C, an escape handle 33 is visible on the emergency window 23 on the rear body surface 12 side. The escape handle 33 allows for the release of the bolt 200 from the rear body surface 12 side in case of unforeseen circumstances.

[0029] In Figure 5C, a portion of the strike 300 is shown by a dashed line. When the tip 35 of the bolt portion 200 enters through the exit 46 of the strike 300, the fitting portion 32 of the bolt portion 200 and the projection 50b of the catch 50 of the strike 300 engage in a male-female relationship. The surface portion 50a has elasticity in the vertical direction with respect to the c-axis, and a click sound is generated when the fitting portion 32 engages with the projection 50b. By generating this click sound on the strike 300 side, it can be confirmed that the bolt portion 200 is accurately fixed to the strike 300. In addition, the tip 35 of the bolt portion 200 abuts against the strike fitting portion 48 and the strike fitting portion 49, preventing it from moving any further to the right.

[0030] Furthermore, since the main body 100 is attached to the panel 70 by folding the front main body surface 11 and the back main body surface 12 along the fold lines 10, when viewed from the side 70a of the panel 70, it has a seamless aesthetic appearance from the front to the back of the panel 70. Similarly, since the strike 300 is attached to the door frame 60 by folding the front strike surface 41 and the back strike surface 42, it also has a similar seamless aesthetic appearance when viewed from the side 60a of the door frame 60.

[0031] Figure 6 shows the main body end portion 22 from the front. The gap between the upper and lower edges of the main body end portion 22 is wide at the flange 25 and gradually narrows towards the back main body surface portion 12, forming a tapered surface 22a. This is to prevent the main body end portion 22 from interfering with the side surface 62b of the cutout 62 of the panel 60 when the panel 70 is opened and closed.

[0032] In the above embodiment, the main body 100 and the strike 300 are attached to the panel 70 or panel 60 by fitting the main body fitting parts 13 and 14 together, or the strike fitting parts 48 and 49 together, with the panel 70 or panel 60 in between. For this reason, it can be attached to the panel 70 or panel 60 which is made of hollow corrugated plastic. Furthermore, since the main body 100 and the strike 300 are not directly pressed, screwed, or glued to the panel 70 or panel 60, but can be attached in a self-contained manner, it is possible to make the entire structure from PP. In addition, since the slide latch is composed of three parts, the main body 100, the strike 300, and the bolt part 200, the number of parts can be reduced, making it easy to manage. Moreover, since adhesives such as hook-and-loop fasteners and double-sided tape are not used, no contamination such as lint is generated.

[0033] In this embodiment, an example is shown in which the main body 100 is attached to the door-side panel 70 and the strike 300 is attached to the door frame-side panel 60, but the main body 100 may be attached to the door frame side and the strike 300 to the door side. Also, in this embodiment, a rectangular example is shown for the fitting shape formed by the fitting parts 13a and 14a, and the fitting shape formed by the fitting parts 48a and 49a, but other polygonal shapes may also be shown. Accordingly, the notches 64 and 49a 73 The shape is formed. In the above embodiment, an example was shown in which corrugated plastic was used for panel 70 and panel 60, but other board materials such as foam board or plywood may also be used.

[0034] In the above embodiment, the fold line 10 is provided between the back body surface portion 12 and the body side end portion 22, and the fold line 45 is provided between the back strike surface portion 42 and the strike side end portion 43. However, they may also be provided between the front body surface portion 11 and the body side end portion 22, and between the back strike surface portion 42 and the strike side end portion 43. [Explanation of symbols]

[0035] 10 broken line 11 Front body surface section 12. Rear side of the main body 13, 14 Main body fitting part 15, 16 Fitting part 13a, 14a Fitting part 13b, 14b Nails 14a Fitting part 17 Slide rails 20 Handles 22 Main body end 23 Emergency window 24 Exit / exit 25 Flange 27 Control ports 30 Control section 32 Fitting part 33. Escape handle 35 Tip 40 Units per door 41 Front side strike surface 42 Reverse side strike surface 43 Strike side end 44 Protrusion 45 broken line 46 Exit / exit 48, 49 Strike fitting section 48a, 49a Fitting part 48b, 49b Nails 50 catches 60, 70 panels 100 Main body 200 bolt 300 Strikes

Claims

1. A resin bolt and A resin body part having a front main body surface and a back main body surface connected by a main body end, an operating port opening in the front main body surface, an exit opening for the tip of the bolt to enter and exit at the main body end, the front main body surface and the back main body surface facing each other by folding along a fold line provided between the front main body surface or the back main body surface and the main body end, the main body fitting parts provided on each surface joining together, and the plan view shape of the joined main body fitting parts forming a first specific polygon shape, A slide latch comprising a resin strike, the front strike surface portion and the back strike surface portion being connected by a strike-side end, an exit opening for the tip of the bolt portion to enter and exit at the strike-side end, the front strike surface portion and the back strike surface portion being able to be brought into direct opposition by folding along a fold line provided between the front strike surface portion or the back strike surface portion and the strike-side end, the strike fitting portions provided on each portion joining together when the front strike surface portion and the back strike surface portion are facing each other, and the plan view shape of the joined strike fitting portions forming a second specific polygonal shape, The main body portion is arranged with the front main body surface portion and the back main body surface portion facing each other, with one side panel having a through-hole first notch having a specific first polygonal shape in between, and the main body fitting portion is housed in the first notch. The slide latch is characterized in that the strike is positioned so that the front strike surface and the back strike surface face each other across the other panel, which is provided with a through-hole second notch having a specific polygonal shape, the strike fitting portion is housed in the second notch, and the operating portion provided on the bolt portion is operable from the operating opening.

2. A slide latch according to claim 1, characterized in that a catch is provided on the strike that elastically receives a fitting portion provided at the end of the bolt portion as it enters, in a male-female relationship.

3. A slide latch according to claim 1, characterized in that an emergency window is opened on the rear surface of the main body, and an escape handle provided on the bolt is operable.

Images