JP2006241766A - Catch device for sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the versatility of a catch device for a sliding door for locking the sliding door 1 at a terminal of a stroke. <P>SOLUTION: The catch device for the sliding door comprises a locked pin 13 fitted to the sliding door 1 side, and an adjusting implement 31. The catch body 15 has a pair of elastic plate-like parts 18a, 18b extending to the moving path side of the locked pin 13 from a fitting part 17. The pair of elastic plate-like parts 18a, 18b have locked pin holding recesses 22 formed at a base between both elastic plate-like parts 18a, 18b, and incline to enlarge a space toward the tip side from the locked pin holding recess 22. The adjusting implement 31 has a pair of sidewalls 33a, 33b gripping the pair of elastic plate-like parts 18a, 18b from both sides to limit the outward elastic deformation of both elastic plate-like parts 18a, 18b, and is mounted in a position adjustable manner in the length direction of the pair of elastic plate-like parts 18a, 18b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sliding door catch device for locking a sliding door at the end of a stroke.

  This type of catch device is configured such that when the sliding door approaches the end of the stroke, the locked pin attached to the sliding door is caused to enter between the pair of elastic plate-like portions of the catch body, and the pair of elastic plate-like portions. When the sliding door reaches the end of the stroke, the pin to be locked is gripped by the recess formed at the base between the elastic plate-like parts. It is comprised.

  Thus, the strength of the elasticity of the pair of elastic plate-like portions of the catch body needs to be strong enough to match the inertial force when the sliding door reaches the end of the stroke. Although patent documents cannot be cited, it is designed according to the size and weight of the sliding door, and the catch device for small and light type sliding doors can be used as a catch device for large and heavy weight type sliding doors, and vice versa. A large and heavy type sliding door catching device could not be used as a catching device for a small and lightweight sliding door. This is because, for example, in the former case, the sliding door may not be braked and stopped smoothly and reliably at the end of the stroke. In the latter case, the sliding door is manually held to hold the sliding door at the catch device at the end of the stroke. It may be necessary to press strongly.

  The present invention aims to provide a catch device for a sliding door that can solve the conventional problems as described above, and its means is shown with reference numerals of embodiments described later. 1 is a catch device that locks 1 at the end of a stroke, and includes a catch body 15, a locked pin 13 that is attached to the sliding door 1 side, and an adjustment tool 31, and the catch body 15 is engaged from an attachment portion 17. A pair of elastic plate-like portions 18a and 18b extending to the moving path side of the stop pin 13 is provided, and the pair of elastic plate-like portions 18a and 18b is formed at a base portion between the two elastic plate-like portions 18a and 18b. And the adjustment tool 31 has the pair of elastic plate-like portions 18a and 18b inclined to increase the distance from the locked pin holding recess 22 toward the distal end. Gripping from both sides It is provided with a pair of side wall portions 33a and 33b for restricting the elastic deformation of the plate-like portions 18a and 18b to the outside, and is attached so that its position can be adjusted in the length direction of the pair of elastic plate-like portions 18a and 18b. It has a configuration.

  About implementing this invention of the said structure, the catch main body 15 and the adjustment tool 31 can be attached to the groove | channel 8 for member attachment of the C-shaped steel shape with a cross section provided in the guide rail 3 for sliding doors. In this case, specifically, as described in claim 2, the pair of elastic plate-like portions 18 a and 18 b of the catch main body 15 extend along the groove 8 outside the member mounting groove 8. The adjustment tool 31 has a concave groove 34 in which both the lip portions 8a of the member mounting groove 8 are fitted to the left and right sides of the mounting portion 32 from which the pair of side wall portions 33a and 33b protrude. And a screw hole 35 penetrating the mounting portion 32 is provided between the pair of side wall portions 33a and 33b. The screw hole 35 is screwed into the screw hole 35 and the tip is pressed against the bottom surface of the member mounting groove 8. A fastening screw 36 having no protruding head is provided, and by tightening the fastening screw, a reaction force causes a lower surface of both lip portions 8a of the member mounting groove 8 and a side surface of the concave groove 34 on the mounting portion 32 side. Were in pressure contact with each other, and the position of the member mounting groove 8 was adjusted in the length direction. Can Seigu 31 configured to be secured.

  According to a third aspect of the present invention, the pair of side wall portions 33a and 33b of the adjustment tool 31 are recessed groove portions 37 into which outer portions of the pair of elastic plate-like portions 18a and 18b of the catch body 15 are fitted. Can be formed. In this case, as described in claim 4, protrusions 23 a and 23 b that prevent the adjustment tool 31 from coming off are provided outside the distal ends of the pair of elastic plate-like portions 18 a and 18 b of the catch body 15. be able to.

  Further, according to a fifth aspect of the present invention, the catch body 15 is formed with a cushion material holding recess 21 adjacent to the locked pin holding recess 22 at the base of the pair of elastic plate-like portions 18a and 18b. In addition, a part of the cushion material 25 fitted and fixed in the cushion material holding recess 21 can be configured to protrude into the locked pin holding recess 22.

  According to the catch device for a sliding door according to the present invention having the above-described configuration, the pair of elastic plate-like portions of the catch main body that is entered while the locked pin on the sliding door side is pushed and widened are inclined so that the distance between the distal ends increases. Therefore, if the attachment position of the adjustment tool is moved to the distal end side of the elastic plate-like portion, the pair of side wall portions of the adjustment tool will reduce the distance between the distal ends of both elastic plate-like portions, and the adjustment will be reversed. When the attachment position of the tool is moved to the base side of the elastic plate-like portion, the distance between the distal ends of both elastic plate-like portions is widened. Therefore, when used as a catch device for large and heavy sliding doors that increase the inertial force when moved, the adjustment tool is moved and fixed to the tip side of both elastic plate-like parts of the catch body. In the case of a small and lightweight sliding door, the sliding door side locked pin increases the resistance force when entering between the two elastic plate-like parts of the catch body, so that the sliding door can be braked with sufficient braking force. By moving the adjustment tool to the base side of both elastic plate-like parts of the catch body and fixing, the resistance force when the locked pin on the sliding door enters between the elastic plate-like parts of the catch body is weakened Thus, the locked pin is smoothly and surely inserted between the elastic plate-like portions, so that the locked pin on the sliding door side is always in the recess of the base between the elastic plate-like portions of the catch body. Make sure to insert the sliding door It can be held in the end. That is, the intended catching action can be executed reliably and smoothly at all times regardless of the weight of the sliding door.

  When the guide rail for sliding door is provided with a C-shaped steel member mounting groove with a lip in cross section, a general member mounting method using the member mounting groove, that is, loosely fitted in the groove. The plate nut is pulled up with a bolt that passes through the mounting member outside the member mounting groove and is screwed into the screw hole of the plate nut, and the plate nut and the mounting member sandwich both lip portions of the member mounting groove. The catch body can be attached by the member attachment method to be performed, but the adjustment tool is generally used as described above because the pair of elastic plate-like parts of the catch body are fitted between the pair of side wall parts. It is difficult to adopt a member mounting method. In this case, according to the second aspect of the present invention, the adjustment tool is adjusted in the length direction of the pair of elastic plate-like portions (the member mounting groove) without using a plate nut that is loosely fitted in the member mounting groove. In the length direction) and can be fixed freely, and the distance between the pair of elastic plate-like portions of the catch body and the outer surface of both lip portions of the member mounting groove is sufficiently narrowed, The entire apparatus can be configured to be low in volume.

  Moreover, according to the structure of Claim 3, an adjustment tool and a catch main body can be united using a pair of elastic plate-shaped part, and it is a catch in the distribution storage stage before attaching and using it. The handling of the device becomes easy. In this case, if the configuration described in claim 4 is adopted, even if the adjustment tool is moved in the distal direction of the pair of elastic plate-like portions of the catch body, the adjustment tool is detached from the pair of elastic plate-like portions and falls off. Since there is no, handling becomes easier.

  Furthermore, according to the structure of claim 5, the locking pin on the sliding door side that enters between the pair of elastic plate-like portions and is braked and finally fits into the locking pin holding recess of the base portion is provided. Since the impact is reduced by abutting against the cushion material protruding into the recessed portion for retaining the pin to be locked, even when the sliding door is heavy, the shock when stopping at the end of the stroke is eliminated or reduced. Can also be suppressed.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a suspended sliding door, which is horizontally above the opening that is opened and closed by the sliding door 1. A sliding door guide rail 3 laid on the installed upper horizontal frame member 2 is suspended through a horizontal shaft roller 4 so as to be horizontally movable. The roller unit 5 including the horizontal axis roller 4 is attached to the upper left and right ends of the sliding door 1, but only one of the roller units 5 is shown in the figure. Moreover, the sliding door 1 has an inner sliding door and an outer sliding door arranged side by side. Therefore, the guide rail portion 6 for the inner sliding door and the guide rail portion 7 for the outer sliding door are arranged side by side on the guide rail portion 3 for the inner sliding door, but the figure is supported by the guide rail portion 6 for the inner sliding door. Only the inner sliding door 1 is shown.

  As shown in FIG. 2, each guide rail portion 6, 7 of the sliding door guide rail 3 is a monorail having a semicircular cross section in which the circumferential groove portion of the horizontal shaft roller 4 is fitted. Projection portions 6a and 7a projecting laterally from the inner side of 6, 7 (the side opposite to the side where the sliding door 1 is provided) are connected. Further, member mounting grooves 8 and 9 that open upward are integrally provided inside the guide rail portions 6 and 7. The member mounting grooves 8 and 9 have a C-shaped steel shape with a lip in cross section, and include a pair of left and right lip portions 8a and 9a.

  In the roller unit 5 on the sliding door 1 side, horizontal support plate portions 11 and 12 are bent inward from the mounting plate 10 on which the horizontal shaft roller 4 is pivotally supported at the left and right side positions of the horizontal shaft roller 4. A vertical columnar shape is positioned below the support plate 11 on the side close to the side of the sliding door 1 and directly above the member mounting groove 8 adjacent to the inside of the guide rail portion 6 that supports the sliding door 1. The to-be-latched pin 13 is attached. Reference numeral 14 denotes an anti-lifting material made of a spring steel plate provided in the roller unit 5 so as to hang from the inner position of the horizontal axis roller 4, and a bent portion 14 a to the outside of the lower side supports the sliding door 1. This prevents the sliding door 1 from rising and the horizontal shaft roller 4 from coming off the guide rail portion 6 by entering the lower side of the protruding portion 6a of the guide rail portion 6 to be performed.

  The catch body 15 that locks the sliding door 1 at the end of the stroke in cooperation with the locked pin 13 attached to the roller unit 5 is a member mounting groove 8 provided in parallel with the guide rail portion 6 that supports the sliding door 1. It is attached to the terminal part. In addition, when a catch device is required also for the outer sliding door (not shown) supported by the guide rail portion 7, as shown in FIG. A catch body 16 is also attached to the end portion of the groove 9, and a locked pin similar to the locked pin 13 attached to the sliding door 1 is also attached to an outside sliding door (not shown). As shown in FIGS. 3 to 8, the catch body 15 is composed of a pair of elastic plate-like portions 18 a and 18 b in parallel with the mounting portion 17. The mounting portion 17 includes both lips of the member mounting groove 8. A ridge portion 20 having a width just fitting between the lip portions 8a of the member mounting groove 8 from the bottom surface wider than the groove width between the portions 8a is integrally projected on the bottom surface. The protruding portion 20 is thinner than the thickness of both lip portions 8a, and the pair of elastic plate-like portions 18a and 18b are arranged in the length direction of the member mounting groove 8 by being fitted between the lip portions 8a. The direction of the mounting portion 17 is regulated so as to be parallel to the direction.

  One end of the catch body 15 in the length direction of the mounting portion 17 is provided with a vertical cylindrical cushion material holding recess 21, and the elastic plate-like portions 18 a and 18 b of the cushion material holding recess 21 are connected to the mounting portion 17. It is continuously provided so as to extend in the length direction. The pair of elastic plate-like portions 18a and 18b includes a locked pin holding recess 22 formed at the base between the elastic plate-like portions 18a and 18b. The tip is inclined so that the interval increases. Further, projecting portions 23a, 23b and 24a, 24b for restricting the movement range of the adjusting tool, which will be described later, protrude from the distal end portions of the outer side surfaces of both elastic plate-like portions 18a, 18b and the intermediate position in the length direction. ing. A protrusion 26 (see FIGS. 6 to 8) that supports the cushion material 25 fitted in the cushion material holding recess 21 protrudes from the mounting portion 17 at the bottom of the cushion material holding recess 21. ing. The boundary wall between the cushion material holding recess 21 and the locked pin holding recess 22 is cut so that a part of the peripheral surface of the cushion material 25 protrudes into the locked pin holding recess 22. ing. Reference numeral 27 denotes a bolt hole vertically provided at two places in the length direction of the mounting portion 17. The mounting bolt 28 inserted into both the bolt holes 27 from above is inserted into the member mounting groove 8 in the length direction. It can be screwed into the two screw holes 30 of the plate nut 29 that is loosely fitted so as to be movable only.

  An adjuster 31 is combined with the catch body protrusion 15. The adjuster 31 includes a mounting portion 32 attached to the member mounting groove 8 at a position directly below the pair of elastic plate-like portions 18a and 18b in the catch body 15, and a pair of protrusions integrally projecting upward from the mounting portion 32. And a pair of left and right side wall portions 33a and 33b for holding the elastic plate-like portions 18a and 18b. The mounting portion 32 includes a concave groove 34 that fits both the lip portions 8a of the member mounting groove 8 on both the left and right sides thereof, and a screw that vertically penetrates the mounting portion 32 between the pair of side wall portions 33a and 33b. A hole 35 is provided, and a fastening screw 36 is screwed into the screw hole 35. The fastening screw 36 has a rotation operation square hole at the upper end but does not have a protruding head, and the length thereof is approximately the same as the length of the screw hole 35. The pair of left and right side wall portions 33a and 33b is formed with a concave groove portion 37 shallower than the plate thickness of the elastic plate portions 18a and 18b into which the outer portions of the elastic plate portions 18a and 18b are fitted. Yes.

The adjustment tool 31 having the above-described configuration has a pair of left and right protrusions 23a and 24a and a pair of left and right protrusions 23b and 24b in a state where the pair of elastic plate-like portions 18a and 18b of the catch body 15 are brought close to each other against elasticity. The pair of elastic plate-like portions 18a and 18b that are externally fitted to the pair of elastic plate-like portions 18a and 18b from the lower side so that the side wall portions 33a and 33b are positioned and elastically return to the outside are paired with the pair of left and right side wall portions 33a and 33a. It can be assembled to the catch body 15 by fitting it into the concave groove portion 37 of 33b.

  The catch body 15 to which the adjustment tool 31 is assembled as described above is in the state where the fastening screw 36 of the adjustment tool 31 and the mounting bolt 28 of the catch body 15 are both loosened. From one end of the sliding door guide rail 3 so that both the lip portions 8a of the member mounting groove 8 are fitted in the left and right concave grooves 34 and the plate nut 29 of the catch body 15 enters the member mounting groove 8. Alternatively, the mounting portion 32 of the adjustment tool 31 and the plate nut 29 of the catch body 15 are fitted from the cut portion of the lip portion 8a provided at an appropriate position between both ends of the member mounting groove 8, and the member mounting groove 8 is fitted. Slide along. When the catch body 15 is positioned at a fixed position, the mounting bolt 28 is fastened and the plate nut 29 is pulled up to the mounting portion 17 side, and between the both sides of the plate nut 29 and the both sides of the mounting portion 17. The catch body 15 can be fixed at an arbitrary position in the length direction of the guide rail portion 6 by sandwiching both the lip portions 8 a of the member mounting groove 8. Of course, the position of the catch body 15 can be adjusted by loosening the mounting bolt 28.

  Further, by screwing the fastening screw 36 of the adjustment tool 31 and press-contacting the tip to the bottom surface of the member mounting groove 8, the bottom surface of the concave groove 34 on both the left and right sides of the mounting portion 32 that floats by the reaction force at that time Since the bottom surface of the lip portion 8a of the member mounting groove 8 fitted in the concave groove 34 is in pressure contact with each other, the adjustment tool 31 is used for the frictional force between the upper and lower contact surfaces of the concave groove 34 and the lip portion 8a and the fastening force. The position can be fixed by the frictional force between the tip of the screw 36 and the bottom surface of the member mounting groove 8. Of course, the fastening screw 36 is loosened and the position of the adjustment tool 31 relative to the catch body 15 is adjusted within the range between the protruding portions 23a and 24a of the elastic plate-like portions 18a and 18b and between the protruding portions 23b and 24b. Can do.

  According to the above configuration, when the sliding door 1 that moves laterally along the guide rail portion 6 approaches the end of the stroke in which the catch body 15 and the adjustment tool 31 are disposed, the locked pin 13 of the sliding door 1 is caught. The main body 15 enters between the pair of elastic plate-like portions 18a and 18b. Since the pair of elastic plate-like portions 18a and 18b are inclined so as to open to the left and right toward the distal end side, the distal end entrance portion is wider than the diameter of the latched pin 13, and the latched pin 13 is smoothly paired. It is possible to enter between the elastic plate-like portions 18a and 18b. When the distance between the pair of elastic plate-like portions 18a and 18b reaches a region narrower than the diameter of the locked pin 13, the locked pin 13 is moved to the end of the stroke of the sliding door 1 with a pair of elastic plates. The pair of elastic plate-like portions 18a and 18b are advanced to the back while spreading the shape-like portions 18a and 18b to the left and right against the elasticity, and the resistance therebetween acts as a braking force on the sliding door 1, When the sliding door 1 approaches the end of the stroke, it is automatically decelerated. When the sliding door 1 reaches the end of the stroke, the locked pin 13 is inserted into the locked pin holding recess 22 as shown by a solid line in FIG. 7 and a virtual line in FIG. The locked pin 13 is held in the locked pin holding recess 22 in a state in which the shock at the time of stoppage is absorbed by being pressed against the cushion material 25 protruding into the locked pin holding recess 22. The sliding door 1 is positioned at the stroke end position.

  The sliding door 1 positioned by the catch body 15 and the locked pin 13 as described above is locked against the locked pin holding force in the locked pin holding recess 22 in the catch body 15. If the sliding door 1 is pulled strongly so as to pull out the pin 13, the positioning is released and the sliding door 1 can be moved freely.

  As described above, the pair of elastic plate-like portions 18a and 18b are inclined so as to open to the left and right toward the distal end side. Therefore, the elastic plate-like portions 18a and 18b are sandwiched between the side wall portions 33a and 33b. As the tool 31 is moved to the distal end side of the elastic plate-like portions 18a and 18b, the interval on the distal end side of the elastic plate-like portions 18a and 18b is narrowed. Of course. Even when the adjustment tool 31 is moved to the most advanced position where it abuts against the protrusions 23a and 24b, the resistance received when the locked pin 13 enters between the elastic plate portions 18a and 18b is maximized. The entry of the locked pin 13 between the elastic plate-like portions 18a and 18b is not hindered. Thus, the elastic plate-like portions 18a and 18b of the portion sandwiched between the side wall portions 33a and 33b of the adjustment tool 31 need to be elastically deformed outwardly with the elastic deformation of the side wall portions 33a and 33b of the adjustment tool 31. Therefore, the elastic deformation to the outside is substantially impossible. Therefore, by adjusting the position of the adjustment tool 31 in the length direction of the elastic plate-like portions 18a and 18b, the adjustment tool 31 is strong against the locked pin 13 on the sliding door 1 side entering the elastic plate-like portions 18a and 18b. The position where the resistance force (braking force) is applied is changed in the length direction of the elastic plate portions 18a and 18b. That is, in the case of a heavy-weight type sliding door, the adjusting tool 31 is moved to the distal end side of the elastic plate-like portions 18a and 18b so that a strong braking force is applied to the locked pin 13 early, or conversely, the lightweight type. In the case of this sliding door, the adjustment tool 31 can be moved to the base side of the elastic plate portions 18a and 18b to delay the time when a strong braking force acts on the locked pin 13. Further, when the adjustment tool 31 is moved to the base side of the elastic plate-like portions 18a and 18b (the protrusions 24a and 24b may be omitted), the adjustment tool 31 is elastic to the outside of the elastic plate-like portions 18a and 18b. It can also be configured such that no deformation limiting action occurs.

It is a perspective view which shows the guide part of the upper end of a sliding door, and the catch apparatus of this invention. It is a side view of FIG. It is a disassembled perspective view which shows the principal part of a catch apparatus. It is a side view which shows the attachment structure of a catch main body. It is a vertical side view which shows the attachment structure of an adjustment tool. It is a cross-sectional top view which shows the state before a catch apparatus works. It is a cross-sectional top view which shows a state when a catch apparatus worked. It is a vertical front view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door 2 Upper horizontal frame material 3 Sliding door guide rail 4 Horizontal axis | shaft roller 6,7 Guide rail part 8,9 Member mounting groove 8a Lip part 13 Pin 15,16 Catch main body 17 Catch main body mounting part 18a, 18b A pair of elastic plate-like portions 21 Cushion material holding recesses 22 Locked pin holding recesses 23a to 24b Protruding portions 25 Cushion materials 27 Bolt holes 28 Mounting bolts 29 Plate nuts 30 Screw holes 31 Adjusting tools 32 Adjusting tool mounting portions 33a 33b A pair of side wall portions 35 Screw holes 36 Fastening screws 37 Recessed groove portions

Claims (5)

  A catch device for locking a sliding door at the end of a stroke, comprising a catch body, a locked pin attached to the sliding door side, and an adjustment tool. The catch body moves from the mounting portion to the moving path side of the locked pin. A pair of elastic plate-like portions extending is provided, and the pair of elastic plate-like portions is provided with a recessed portion for holding a locked pin formed at a base portion between the two elastic plate-like portions, and the locked pin A pair of side wall portions that incline so that the distance from the holding concave portion increases toward the tip side, and the adjustment tool grips the pair of elastic plate-like portions from both sides to restrict elastic deformation to the outside of both elastic plate-like portions. And a sliding door catch device which is attached so as to be adjustable in the length direction of the pair of elastic plate-like portions.   The catch body and the adjuster are mounted on a C-shaped steel member mounting groove with a cross-section provided on the sliding door guide rail, and the pair of elastic plate-like portions of the catch body are for mounting the member. The adjustment tool extends along the groove on the outer side of the groove, and the adjustment tool is formed with a concave groove on both the left and right sides of the mounting portion on which the pair of side wall portions protrudes so as to fit both lip portions of the member mounting groove. In addition, a screw for passing through the attachment portion between the pair of side wall portions is provided, and a fastening screw that does not have an overhanging head that is screwed into the screw hole and has a tip pressed against the bottom surface of the member attachment groove. The sliding door catch device according to claim 1 provided.   The sliding door catch device according to claim 1 or 2, wherein a concave groove portion into which an outer portion of the pair of elastic plate-like portions of the catch body is fitted is formed on the pair of side wall portions of the adjuster.   The sliding door catch device according to claim 3, wherein a projecting portion for preventing the adjustment tool from coming off is provided on the outer end of the pair of elastic plate-like portions of the catch body.   The catch body is formed with a recess for holding the cushion material adjacent to the recessed portion for holding the latched pin at the base of the pair of elastic plate-like portions, and the cushion material is fitted and fixed in the recess for holding the cushion material. The sliding door catch device according to any one of claims 1 to 4, wherein a part of the locking device is configured to protrude into the locked pin holding recess.