Slide rail

Abstract

To provide a slide rail capable of keeping a function of restricting a movement of a mobile rail with respect to a fixed rail in spite of a long-term use.SOLUTION: A slide rail includes: a fixed rail 11 to be fixed to a fixing side member; and a mobile rail 12 which is movable in a front and rear direction with respect to the fixed rail 11 and is fixed to a mobile side member. In the fixed rail 11, a variable projection part 11c which is projected sideward so as to reduce a projection amount by receiving pressure force is formed. In the mobile rail, an engagement projection part 12c which can be engaged with the variable projection part 11c is formed. A forward movement of the mobile rail 12 with respect to the fixed rail 11 is restricted in a state where the engagement projection part 12c is engaged with the variable projection part 11c. The restriction of the forward movement with respect to the fixed rail 11 is released by imparting force to move forward to the mobile rail 12 in a state where the engagement projection part 12c is engaged with the variable projection part 11c.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a slide rail that supports a movable member reciprocally in a predetermined direction relative to a fixed member. [Background technology]

[0002] A known conventional slide rail includes a fixed rail that is fixed to the grill chamber and a movable rail that is movable in the forward and backward directions relative to the fixed rail and is fixed to the grill door (see, for example, Patent Document 1).

[0003] The conventional slide rail has a first protrusion made of a leaf spring protruding upward at the front end of the fixed rail, and a second protrusion protruding downward at the front end of the movable rail. In the conventional slide rail, when the grill door closes the opening of the grill chamber, the second protrusion is located behind the first protrusion to restrict the forward movement of the grill door, and in the state in which the forward movement of the grill door is restricted, a forward force is applied to the grill door, causing the second protrusion to elastically deform and push the first protrusion downward, thereby allowing the grill door to move forward. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-148346 A Summary of the Invention [Problem to be solved by the invention]

[0005] In conventional sliding rails, in addition to the pressing force acting on the first protrusion when the grill door is opened and closed, gravity continues to act on the first protrusion, which is made of a leaf spring. Therefore, over a long period of use, the leaf spring that constitutes the first protrusion undergoes plastic deformation, reducing the protruding height of the first protrusion. As a result, the force restricting the forward movement of the grill door when the opening of the grill compartment is closed becomes weaker, and there is a risk that the opening of the grill compartment may be opened unintentionally.

[0006] An object of the present invention is to provide a slide rail that can maintain the function of restricting the movement of a movable rail relative to a fixed rail even after long-term use. [Means for solving the problem]

[0007] The slide rail of the present invention is a slide rail that supports a moving side member so that it can move back and forth in a forward and backward direction relative to a fixed side member, and is capable of holding the moving side member at a predetermined position on the fixed side member, and comprises a fixed rail fixed to the fixed side member, and a moving rail that is movable in a forward and backward direction relative to the fixed rail and fixed to the moving side member, and one of the fixed rail and the moving rail is formed with a variable protrusion that protrudes toward the side and whose protrusion amount becomes smaller when subjected to a pressing force, and the other of the fixed rail and the moving rail is formed with an engaging protrusion that can engage with the variable protrusion, and when the engaging protrusion is engaged with the variable protrusion, the moving rail is restricted from moving forward relative to the fixed rail, and when the engaging protrusion is engaged with the variable protrusion, the restriction on the moving rail from moving forward relative to the fixed rail is released by applying a force that moves the moving rail forward relative to the moving rail.

[0008] In addition, it is preferable that the slide rail of the present invention is configured such that the variable protrusion is formed at the longitudinal center of the plate-shaped member by bending an elastic rectangular plate-shaped member attached to the fixed rail or the movable rail, one longitudinal end of the plate-shaped member is fixed to the fixed rail or the movable rail and the other longitudinal end is supported so as to be able to slide freely along the outer surface of the fixed rail or the movable rail, and when a pressing force is applied to the variable protrusion, the other longitudinal end moves along the outer surface of the fixed rail or the movable rail, thereby reducing the amount of protrusion of the variable protrusion.

[0009] In addition, it is preferable that the slide rail of the present invention has the variable protrusion formed on an elastic rectangular plate-like member that is attached to the fixed rail or the movable rail, and one longitudinal end of the plate-like member is fixed to the fixed rail or the movable rail, and when a pressing force acts on the variable protrusion, the other longitudinal end moves in a direction away from the outer surface of the fixed rail or the movable rail, thereby reducing the amount of protrusion of the variable protrusion. Effect of the Invention

[0010] According to the present invention, when the engaging protrusion is not engaged with the variable protrusion, no force acts on the variable protrusion in a direction that would reduce the amount of protrusion, so the amount of protrusion of the variable protrusion does not decrease even with long-term use, and it is possible to maintain the function of regulating the movement of the movable rail relative to the fixed rail. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a contracted state of a slide rail according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view showing the extended state of the slide rail according to one embodiment of the present invention. [Diagram 3] FIG. 3 is a cross-sectional view of a slide rail according to an embodiment of the present invention. [Figure 4]FIG. 4 is a perspective view of a main portion of a fixed rail according to an embodiment of the present invention. [Diagram 5] FIG. 5 is a perspective view of a main part of the slide rail in a state in which the movement of the moving rail is restricted according to one embodiment of the present invention. [Figure 6] FIG. 6 is a perspective view of a main part of the slide rail in a state in which the restriction on the movement of the moving rail according to one embodiment of the present invention is released. [Figure 7] FIG. 7 is a perspective view of a main portion of a fixed rail according to another embodiment of the present invention. [Figure 8] FIG. 8 is a perspective view of a main portion of a fixed rail according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Fig. 1 to Fig. 6 show an embodiment of the present invention, in which Fig. 1 is a perspective view showing a contracted state of the slide rail, Fig. 2 is a perspective view showing an extended state of the slide rail, Fig. 3 is a cross-sectional view of the slide rail, Fig. 4 is a perspective view of a main part of the fixed rail, Fig. 5 is a perspective view of a main part of the slide rail in a state where the movement of the movable rail is restricted, and Fig. 6 is a perspective view of a main part of the slide rail in a state where the restriction on the movement of the movable rail is released. In this embodiment, the left side in Fig. 1 is described as the front, and the right side in Fig. 1 is defined as the rear.

[0013] The slide rail 10 of the present embodiment, for example, supports a grill door as a movable member relative to a grill chamber as a fixed member of a grill for cooking food, so that the grill door can move freely in the front-rear direction.

[0014] As shown in Figures 1 to 3, the slide rail 10 comprises a fixed rail 11 fixed to the grill cabinet, a movable rail 12 fixed to the grill door, a fixed side intermediate rail 13 configured to be movable within a predetermined range relative to the fixed rail 11, a movable side intermediate rail 14 connected to the fixed side intermediate rail 13 and supporting the movable rail 12 so as to be movable within the predetermined range, a plurality of fixed side balls 15 provided between the fixed rail 11 and the fixed side intermediate rail 13, a fixed side retainer 16 that holds the multiple fixed side balls 15, a plurality of movable side balls 17 provided between the movable side intermediate rail 14 and the movable rail 12, and a movable side retainer 18 that holds the multiple movable side balls 17.

[0015] The fixed rail 11 is formed, for example, by bending a metal plate-like member, and has a main body 11a extending in the front-rear direction and a pair of edges 11b protruding from both ends of the main body 11a in the up-down direction toward one side of the main body 11a. A variable protrusion 11c is formed on the front end side of the main body 11a, protruding toward one side of the main body 11a and the protrusion amount is reduced by applying a pressing force.

[0016] As shown in FIG. 4, the variable protrusion 11c is formed on an elastic plate-like member 11d attached to the main body 11a of the fixed rail 11. The plate-like member 11d is a metal plate formed in a rectangular shape. The plate-like member 11d is bent so that the central part protrudes toward one side from both ends in the longitudinal direction, thereby forming the variable protrusion 11c on the central part side in the longitudinal direction. The front end side of the plate-like member 11d is fixed to the main body 11a, and the rear end side is supported by the main body 11a so as to be freely slidable in the longitudinal direction. That is, when a pressing force is applied to the variable protrusion 11c, the front end side of the plate-like member 11d becomes a fulcrum, and the rear end side of the plate-like member 11d moves along one side of the main body 11a, thereby reducing the protrusion amount.

[0017] As shown in FIG. 3, on the inner surface side of the pair of edges 11b, rolling grooves 11b1 are formed along the extending direction of the main body portion 11a, in which the fixed side balls 15 roll.

[0018] The moving rail 12 is formed, for example, by bending a metal plate-like member, and has a main body 12a extending in the front-rear direction and a pair of edge portions 12b that protrude from both ends of the main body 12a in the up-down direction toward one side of the main body 12a, as shown in Fig. 3. An engagement protrusion 12c that protrudes toward one side of the main body 12a and engages with the variable protrusion 11c of the fixed rail 11 is formed at the front end of the main body 12a. The engagement protrusion 12c is formed by bending a portion that is continuous with the front end of the main body 12a toward one side of the main body 12a. In addition, a rolling groove 12b1 in which the moving ball 17 rolls is formed on the inner side of the pair of edge portions 12b along the extending direction of the main body 12a.

[0019] The fixed-side intermediate rail 13 is formed by bending a metal plate-like member, and has a main body 13a extending in the moving direction of the grill door, and a pair of edge portions 13b projecting from both ends of the main body 13a in the up-down direction toward one side of the main body 13a, as shown in Fig. 3. Rolling grooves 13b1 are formed on the outer surface of the pair of edge portions 13b along the extending direction of the main body 13a, in which the fixed-side balls 15 roll. The fixed-side intermediate rail 13 is formed so that its longitudinal size is smaller than that of the fixed rail 11.

[0020] The movable-side intermediate rail 14 is formed by bending a metal plate-like member, and has a main body portion 14a extending in the moving direction of the grill door, and a pair of edge portions 14b projecting from both ends of the main body portion 14a in the up-down direction toward one surface side of the main body portion 14a, as shown in Fig. 3. The pair of edge portions 14b are provided on the outer surface side along the extending direction of the main body portion 14a, and are provided with rolling grooves 14b1 in which the movable-side balls 17 roll. The movable-side intermediate rail 14 is formed so that its longitudinal size is smaller than that of the movable rail 12.

[0021] Here, the fixed-side intermediate rail 13 is integrally formed by joining the other surface of the main body portion 13a to the other surface of the main body portion 14a of the movable-side intermediate rail 14 by welding or the like.

[0022] Each of the multiple fixed-side balls 15 is a spherical metallic member, and is disposed between the inner surface side of a pair of edges 11b of the fixed rail 11 and the outer surface side of a pair of edges 13b of the fixed-side intermediate rail 13. When the fixed-side intermediate rail 13 moves relative to the fixed rail 11, the multiple fixed-side balls 15 roll along the rolling grooves 11b1 of the fixed rail 11 and the rolling grooves 13b1 of the fixed-side intermediate rail 13.

[0023] The fixed-side retainer 16 is made of a metal plate-like member and has a plurality of holding holes for holding the fixed-side balls 15 .

[0024] The multiple moving side balls 17 are each a spherical metal member and are disposed between the outer surface side of a pair of edge portions 14b of the moving side intermediate rail 14 and the inner surface side of a pair of edge portions 12b of the moving rail 12. The multiple moving side balls 17 roll along the rolling groove 14b1 of the moving side intermediate rail 14 and the rolling groove 12b1 of the moving rail 12 when the moving rail 12 moves relative to the moving side intermediate rail 14.

[0025] The moving side retainer 18 is made of a metal plate-like member and has a plurality of holding holes for holding the moving side balls 17 .

[0026] The slide rail 10 configured as above is used with the fixed rail 11 fixed to the grill chamber and the movable rail 12 fixed to the grill door.

[0027] At this time, when the movable rail 12 is positioned as far back as possible within its range of movement in the front-rear direction relative to the fixed rail 11, as shown in Fig. 5, the engaging protrusion 12c of the movable rail 12 is positioned behind the variable protrusion 11c provided on the front end side of the fixed rail 11. In this state, the engaging protrusion 12c engages with the variable protrusion 11c, restricting the movable rail 12 from moving forward relative to the fixed rail 11 and maintaining its position in the front-rear direction relative to the fixed rail 11.

[0028] Furthermore, when the movable rail 12 is moved forward relative to the fixed rail 11 with the engaging protrusion 12c positioned behind the variable protrusion 11c, the engaging protrusion 12c of the movable rail 12 comes into contact with the variable protrusion 11c of the fixed rail 11. When a force is applied to move the movable rail 12 forward relative to the fixed rail 11 with the engaging protrusion 12c in contact with the variable protrusion 11c, a pressing force acts on the variable protrusion 11c, reducing the protrusion amount of the variable protrusion 11c, and the engaging protrusion 12c becomes able to pass through the variable protrusion 11c. This allows the movable rail 12 to be moved forward relative to the fixed rail 11, as shown in FIG. 6.

[0029] Thus, according to the slide rail of this embodiment, a slide rail 10 is provided which supports the grill door so that it can move back and forth in the front and rear directions relative to the grill cabinet and which can hold the grill door at a predetermined position in the grill cabinet, and which comprises a fixed rail 11 fixed to the grill cabinet and a movable rail 12 which is movable in the front and rear directions relative to the fixed rail 11 and is fixed to the grill door, the fixed rail 11 is formed with a variable protrusion 11c which protrudes sideways and whose protrusion amount becomes smaller when subjected to a pressing force, the movable rail is formed with an engaging protrusion 12c which can engage with the variable protrusion 11c, and when the engaging protrusion 12c is engaged with the variable protrusion 11c, the movable rail 12 is restricted from moving forward relative to the fixed rail 11, and when the engaging protrusion 12c is engaged with the variable protrusion 11c, the restriction on the forward movement relative to the fixed rail 11 is released by applying a force which moves the movable rail 12 forward.

[0030] As a result, when the engaging protrusion 12c is not engaged with the variable protrusion 11c, no force acts on the variable protrusion 11c in a direction that reduces the amount of protrusion. Therefore, even with long-term use, the amount of protrusion of the variable protrusion 11c does not decrease, and it is possible to maintain the function of regulating the movement of the movable rail 12 relative to the fixed rail 11.

[0031] In addition, the variable protrusion 11c is preferably formed on the longitudinal center side of the plate-shaped member 11d by bending an elastic rectangular plate-shaped member 11d attached to the main body 11a of the fixed rail 11, the plate-shaped member 11d having one longitudinal end fixed to the fixed rail 11 and the other longitudinal end supported so as to be freely slidable along the outer surface of the main body 11a of the fixed rail 11, and when a pressing force is applied to the variable protrusion 11c, the other longitudinal end moves along the outer surface of the main body 11a of the fixed rail 11, thereby reducing the amount of protrusion of the variable protrusion 11c.

[0032] This makes it possible to adjust the force restricting the forward movement of the movable rail 12 relative to the fixed rail 11 by adjusting the protruding amount and elastic force of the variable protrusion portion 11c.

[0033] 7 and 8 show another embodiment of the present invention, each being a perspective view of a main part of a fixed rail, in which the same components as those in the above embodiment are denoted by the same reference numerals.

[0034] In the slide rail 10 of this embodiment, the variable protrusion 11c is formed on an elastic plate-like member 11e attached to the main body 11a of the fixed rail 11 as shown in Figs. 7 and 8. The plate-like member 11e is a metal plate formed in a rectangular shape. The plate-like member 11e is bent so that the central part protrudes toward one side from both ends in the longitudinal direction, thereby forming the variable protrusion 11c on the central part side in the longitudinal direction. Only the rear end side of the plate-like member 11e is fixed to the main body 11a. That is, when a pressing force is applied to the variable protrusion 11c, one end side of the plate-like member 11e becomes a fulcrum, and the other end side of the plate-like member 11d moves in a direction away from one side of the main body 11a, thereby reducing the protrusion amount.

[0035] In the slide rail 10 configured as above, as in the above embodiment, when the movable rail 12 is positioned as far back as possible within the forward / rearward movement range relative to the fixed rail 11, the engaging protrusion 12c of the movable rail 12 is positioned behind the variable protrusion 11c provided on the front end side of the fixed rail 11. In this state, the engaging protrusion 12c engages with the variable protrusion 11c, restricting the movable rail 12 from moving forward relative to the fixed rail 11 and maintaining the position in the forward / rearward direction relative to the fixed rail 11.

[0036] Furthermore, when the movable rail 12 is moved forward relative to the fixed rail 11 with the engaging protrusion 12c positioned behind the variable protrusion 11c, the engaging protrusion 12c of the movable rail 12 comes into contact with the variable protrusion 11c of the fixed rail 11. When a force is applied to move the movable rail 12 forward relative to the fixed rail 11 with the engaging protrusion 12c in contact with the variable protrusion 11c, a pressing force acts on the variable protrusion 11c, reducing the protruding amount of the variable protrusion 11c, and the engaging protrusion 12c becomes able to pass through the variable protrusion 11c. This allows the movable rail 12 to be moved forward relative to the fixed rail 11, similar to the above embodiment.

[0037] Thus, according to the slide rail of this embodiment, as in the above embodiment, when the engagement protrusion 12c is not engaged with the variable protrusion 11c, no force acts on the variable protrusion 11c in a direction that reduces the amount of protrusion. Therefore, even with long-term use, the amount of protrusion of the variable protrusion 11c does not decrease, and the function of regulating the movement of the movable rail 12 relative to the fixed rail 11 can be maintained.

[0038] In addition, it is preferable that the variable protrusion 11c is formed on an elastic rectangular plate-like member 11e that is attached to the main body 11a of the fixed rail 11, and that one longitudinal end of the plate-like member 11e is fixed to the main body 11a of the fixed rail 11, and that when a pressing force is applied to the variable protrusion 11c, the other longitudinal end moves in a direction away from the outer surface of the main body 11a of the fixed rail 11, thereby reducing the amount of protrusion of the variable protrusion 11c.

[0039] This makes it possible to adjust the force restricting the forward movement of the movable rail 12 relative to the fixed rail 11 by adjusting the protruding amount and elastic force of the variable protrusion portion 11c.

[0040] In the above embodiment, the slide rail of the present invention is shown applied to a grill that supports a grill door so that it can move freely in the front-to-back direction relative to the grill cabinet, but this is not limited to this. For example, the slide rail of the present invention may be applied to a cabinet that supports a drawer so that it can move freely in the front-to-back direction relative to the main body.

[0041] In addition, in the above embodiment, a variable protrusion 11c is provided on the fixed rail 11 fixed to the grill cabinet, and an engaging protrusion 12c is provided on the movable rail 12 fixed to the grill door, but this is not limited to this, and an engaging protrusion may be provided on the fixed rail, and a variable protrusion may be provided on the movable rail. [Explanation of symbols]

[0042] 10 Slide rail 11 Fixed rail 11c Variable protrusion 11d, 11e Plate-shaped member 12 Moving Rail 12c Engagement protrusion

Claims

1. A slide rail that supports a movable member so as to be freely reciprocable in a front-rear direction relative to a fixed member and is capable of holding the movable member at a predetermined position of the fixed member, A fixed rail fixed to the fixed member; a movable rail that is movable in a front-rear direction relative to the fixed rail and is fixed to the movable member; a variable protrusion portion is formed on one of the fixed rail and the movable rail, the variable protrusion portion protruding laterally and decreasing in protruding amount when subjected to a pressing force; the other of the fixed rail and the movable rail is formed with an engaging protrusion that can be engaged with the variable protrusion; The moving rail is When the engaging protrusion is engaged with the variable protrusion, forward movement with respect to the fixed rail is restricted, When the engaging protrusion is engaged with the variable protrusion, a force for moving the movable rail forward is applied, and the restriction on the movable rail forward movement is released. Slide rail.

2. the variable protrusion is formed on a longitudinal center side of a rectangular plate-like member having elasticity and attached to the fixed rail or the movable rail by bending the plate-like member, The plate-like member is One end side in the longitudinal direction is fixed to the fixed rail or the movable rail, and the other end side in the longitudinal direction is supported slidably along an outer surface of the fixed rail or the movable rail, When a pressing force acts on the variable protrusion, the other end side in the longitudinal direction moves along the outer surface of the fixed rail or the movable rail, thereby reducing the protruding amount of the variable protrusion.

2. A slide rail according to claim 1.

3. the variable protrusion is formed on an elastic rectangular plate-like member attached to the fixed rail or the movable rail, The plate-like member is One end side in the longitudinal direction is fixed to the fixed rail or the movable rail, When a pressing force acts on the variable protrusion, the other end side in the longitudinal direction moves in a direction away from the outer surface of the fixed rail or the movable rail, thereby reducing the protrusion amount of the variable protrusion.

2. A slide rail according to claim 1.

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