JP2002266543A - Fixing release and opening and shutting device of sliding window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of releasing, opening and shutting a fixed sliding window by one hand and maintaining a visual field of the sliding window as wide as possible. SOLUTION: A fixing release and opening and shutting device of the sliding window is placed on the surface of the sliding window, and it is constituted of a pair of engaging means energized so as to separate from each other in the direction at right angles to a sliding direction of the window, a pair of guide means for guiding the slide of the sliding door having a constitution engaged with a pair of engaging means on both sides of the sliding window and a handle located on a middle part of a pair of engaging means and capable of operating them in the opposite direction to an energized direction of a pair of engaging means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the manual opening and closing of a cabin window of an industrial vehicle, in particular, a sliding window.
It relates to an unlocking device.

[0002]

2. Description of the Related Art As shown in FIG. 6, for example, a window of a cabin (also referred to as a cab, a cockpit, a cab, etc.) of an industrial vehicle takes a loader as an example. It is often configured to be openable and closable to make it more visible or to obtain ventilation in the cabin. And in such a cabin window, the window protrudes inside and outside the cabin when opening and closing the window, impairing safety,
A slide-type opening / closing structure is often used so as not to limit the internal space of the cabin, and the opening / closing drive type is that the opening and closing frequency of the window is less frequent than that of a passenger car. In many cases, a so-called power window, which is a power drive system, is not used, but is manually opened and closed.

One example of such an unlocking and opening / closing device in a conventional example is shown in Japanese Utility Model Application Laid-Open No. 62-5480.
In Japanese Patent Publication No. 8 (Kokai) No. 8, an opening and closing device as shown in FIG. 7 is attached to the upper end of a window that slides up and down. That is, the fixing release / opening / closing device has a support 2 fixed to the left and right in a horizontal cylindrical body 1 having a length extending to the vicinity of both sides of the window. The left and right rods 3 slidable in the direction are always urged in both directions by compressed springs 4, and the outer ends 5 of the rods 3 are provided on both side window frame sides, or By fitting into the receiving groove, the window attached thereto is prevented from sliding up and down. The central sides of the left and right rods 3 slidable in the lateral direction are substantially V-shaped link members 9 and 10 in which intermediate swinging parts 7 and 8 are respectively supported by a handle 6 fixed to the cylindrical body 1. Is linked through. To open and close the window, the user pulls the left end of the link member 9 toward the handle member 7 with his / her finger while touching a part of the palm to the handle member 6. As a result, the left and right rods 3 are retracted inward by the rotation of the link members 9 and 10, and the engagement with the window frame members on both sides is released. By opening and closing to the position and then releasing your hand,
The left and right rods 3 are engaged with the window frame members on both sides again, and the open / close position is maintained.
According to Japanese Patent Application Laid-Open No. 2000-291309, FIG.
Has been proposed. That is, the center sides of the left and right rods 12 that are freely engageable with the lock holes 11 provided in the window frames on both sides are offset in directions away from the rod axis, respectively, and their center ends are It is pivotally attached to both ends of a relay member 14 rotatable about a fulcrum 13 fixed to the window body. A lever 15 is fixed to the relay member 14 in the direction of the surface of the glass surface. The operator has a handle 1 fixed to the window
6 while the lever 15 is operated, the relay member 1 is held.
When the knob 4 is rotated counterclockwise, the ends of the left and right rods 12 escape from the locks 11 provided on the window side frames at both ends of the window, so that the window can be slid in the vertical direction. The operator holds the handle 16 while keeping the rotation position of the lever 15 as it is.
Is moved in either of the upper and lower directions to slide the window to a desired position, and then the lever 15 is rotated clockwise, so that the left and right rods 11 are in the both-side window frame at the position after the sliding of the window. The window is fixed by engaging with a locking hole 11 provided on the side.

[0004]

In the above-mentioned conventional unlocking and opening / closing device for a window, the center of the left and right rods which engage with the engagement holes provided in the window frames and the like on both sides of the window. Since the link member and the offset portion exist on the window and the handle member is further arranged outside or near the window, the visibility of the window may be considerably impaired. In addition, since all of the structures require a pivot point, the fabrication is not easy. Further, JP-A-2000-291309
In the publication, it is necessary to rotate the lever 15 while holding the handle 16 so that the window does not fall freely when the window is opened and closed and fixed, but such an operation is easy to operate. It is hard to say something. The present invention
An object of the present invention is to solve the above-mentioned drawbacks of the conventional unlocking and opening / closing device.

[0005]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, the unlocking and opening / closing device for the sliding window is disposed on the surface of the sliding window, and the opening and closing device is provided on the surface of the sliding window. A pair of engaging means urged to be separated from each other in a direction perpendicular to the sliding direction, provided on both sides of the sliding window, to engage with the pair of engaging means;
A pair of guide means for guiding the sliding of the sliding window,
A handle is provided between the pair of engaging means and is operable in a direction opposite to the urging direction of the urging means.

Accordingly, the unlocking / opening / closing device for the sliding window of the present invention has a structure in which an operating handle acting coaxially with the engaging means is disposed between the left and right engaging means. Since it is simple and there is no protrusion of the member in the direction perpendicular to the axis of the engagement means due to the existence of the offset structure and the swing link structure as in the conventional example, the visibility of the sliding window is less affected.

According to the second aspect of the present invention, in the unlocking and opening / closing device for the sliding window of the present invention, a pair of guide means are provided with means for urging the sliding window in one direction.

Accordingly, even when the unlocking / opening / closing device for the sliding window of the present invention is applied to the vertical sliding window, the sliding window itself is always urged upward, so that the sliding window is erroneously operated when the handle is operated. There is no danger that the sliding window will fall to the bottom by gravity.

According to the third aspect of the present invention, in the unlocking and opening / closing device for the sliding window of the present invention, the handle has a pair of operating members for operating the pair of engaging means in a direction opposite to the biasing direction. including.

[0010] Accordingly, the sliding window unlocking / opening / closing device of the present invention can have a left-right symmetric structure, so that the left and right components can be shared, thereby reducing the manufacturing cost. Also, in the operation of the handle, since the left and right of the handle are targets, it is not difficult to operate whether the operation is right-handed or left-handed.

According to the fourth aspect of the present invention, in the unlocking and opening / closing device for the sliding window of the present invention, the means for urging the pair of engaging means in a direction away from each other is provided in the handle. To do.

Thus, in the sliding window unlocking / opening / closing device of the present invention, the operating member of the handle and the urging means of the engaging means can be arranged concentrically, so that the operating member is particularly large. Without doing so, the volume of the support structure of the engagement means on both sides on the surface of the sliding window can be significantly reduced, and the visibility of the window is improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which a sliding window fixing / unlocking / opening / closing device according to the present invention is applied to a cabin window of a loader as shown in FIG. 6 will be described with reference to the drawings. It is needless to say that the present invention is not limited to the embodiment. In addition, in the case of a normal window, for example, there are two cases, that is, a case where the entirety of a glass window and a frame around the glass window and fixed inside the wall of the building and a case where the above-mentioned glass window is referred to. The term "window" or "sliding window" refers to the latter.

First, the fixing release of the sliding window of the present invention,
An example of the sliding window of the cabin of the loader to which the opening and closing device can be applied will be described. FIG. 1 shows a door 21 of a cabin 20 of a loader as viewed from the inside of the cabin. A vertically sliding window 23, a fixed window (fitting-in window) 24, and a door panel are disposed in a four-peripheral door frame 22 from above to below. 25 occupy an area of approximately 1/3 each. The sliding window 23 is located above the fixed window 24 in FIG. 1 and is slidable in the vertical direction. In FIG. 1, the sliding window 23 is shown in a state of reaching the uppermost end. In this state, the lower end of the sliding window 23 has a vertical length that overlaps the back side of the upper end of the fixed window 24, and by having such a dimensional relationship, rainfall enters the cabin. It has a structure to prevent it. An unlocking / opening / closing device 26 according to the present invention is arranged above the sliding window 23. The arrangement height of the apparatus is selected such that the operator of the loader can operate the entire sliding window in a well-balanced manner when moving the sliding window up and down with one hand using the handle of the apparatus. Although not an essential component, an upper urging device 27 for the sliding window 23, which is called a balancer or an assist, is disposed on the left side of the sliding window 23. This makes it easier because the operator does not need to move the sliding window upward (downward movement is a movement against this urging device 27, but since this is an operation in the direction in which gravity acts), It does not require as much effort to move the sliding window upward when not in use). In addition, when the urging device 27 is provided, the sliding window does not drop down as soon as the operator releases the fixing. Further, in FIG. 1, the urging device 27 is provided only on the left side of the sliding window 23, but it is needless to say that the urging device 27 may be provided on the right side or right and left.

As shown in the exploded view of FIG. 2, the unlocking / opening / closing device for the sliding window of the present invention basically exists on the left and right sides of the surface of the sliding window 23, and exists on both sides of the sliding window 23. An engaging means 30 which can be freely inserted into and retracted from an engaging hole 29 provided in the guide 28, and which is also disposed on the slide window 23 and is located at an intermediate portion between the left and right engaging means 30. After the engaging means 30 escapes from the engaging hole 29 of the guide 28 and the engaging means 30 escapes, the guide 30 comprises a handle 60 serving as an operating tool for opening and closing the sliding window 23 in the vertical direction. I have.

With respect to the engaging means 30, the engaging means 30 is provided on the surface of the sliding window 23 by arbitrarily arranging any cross-sectional shape, for example, two relatively rigid linear members 31 having a circular cross section. Have. In this embodiment, an outer end of each of the linear members 31 is slidable in a support cover 38 fixed on the slide window 23 and is freely movable into and out of the engaging hole 29 of the guide 28. End member 3 having a shape 32
3 is fixed. That is, in FIG.
When 0 is moved in the outward direction, the claw 32 at the tip of the end member 33 fixed to the end of the engagement means 30 is engaged with the engagement provided in the guide 28 at an arbitrary interval in the vertical direction. When the engaging means 30 is engaged with the hole 29 and, conversely, the engaging means 30 is moved toward the center, the claw 32 at the distal end portion is disengaged from the engaging hole 29 of the guide 28. The window 23 can be moved up and down. On the other hand, a plate 35 having a through hole 34 in the vicinity of the center is fixed to an end of the engaging means 30 on the center side in a substantially orthogonal direction, for example, by welding.

A handle 60 having an operation function is basically composed of a base 40 fixed to the center of the sliding window 23, and left and right slidably fitted to the left and right of the base 40. Operating unit 50. Base 40
As shown in FIG. 2, which is a perspective view of the sliding window 23 when viewed from the outdoor direction, the sliding window 23 has a parallel back surface 41 that is in contact with the surface of the sliding window 23 inside the cabin. When they come into contact with each other, the four screw receiving projections 42 penetrate into the four through holes provided in the slide window 23 in advance.
And a longitudinally extending substrate 44 having guide strips 43 on both sides in the width direction. A central partition wall 45 is erected on the substrate 44 in a direction perpendicular to the substrate wall 44, and open frames 46 are opened from both sides of the central partition wall 45 in the longitudinal direction. The inside of the open frame 46 receives a large-diameter side of a later-described spring 57 and is supported by a central partition wall 45. The outer peripheral portion of the open frame 46 has a central opening of a later-described operation unit 50. Are slidably fitted outside. In such a base 40, for example, the screw receiving projections 42 of the substrate 44 are inserted into four through holes provided in the sliding window 23 itself in a straight line, and the parallel back surface 41 of the substrate 44 is After the abutment with the inside surface of the cabin, the abutment plate 47 is applied from the outside of the slide window 23, and the screw 48 is screwed into the screw receiving projection 42 of the substrate 44 from the abutment plate 47 side. 40 is fixed to the cabin inner surface of the sliding window 23. At this time, between the parallel back surface 41 of the base 40 and the back surface of the slide window 23 and / or between the backing plate 47 and the surface of the slide window 23, a soft material is used to protect the slide window 23 when the screw 48 is tightened. It is desirable to interpose a packing material made of rubber or synthetic resin.
Further, the cover 49 is finally covered on the surface of the backing plate 47 on the outer surface of the sliding window 23 located outside the cabin after the base 40 is attached, and the backing plate 47 and the screws 48 are applied from the outside. Is made invisible. This cover 4
9 is fixed to the caul plate 47 by, for example, preparing a projecting portion of a slight height at a site opposed to the perimeter of the caul plate 47 or at the entire periphery thereof, while providing a cover 49 in the form of a rectangular container having a shallow bottom. By providing a projection with a slight height on the entrance side inside the peripheral wall, the cover 49
Is elastically moved over the projection of the contact plate 47 so that a clip-like engagement is made. This cover 49
Can be removed from the backing plate 47 by applying a slight force to escape from the engagement between the cover 49 and the backing plate 47 utilizing the elasticity. The structure of the operation unit 50 that is slidably fitted to the left and right of the base 40 in the axial direction as described above is as follows.
Referring to FIG. 2 which is a perspective view of the entire mounting position as viewed from the opposite side, the operation unit 50 has an L-shaped side wall 51 in side view, and a top surface 52 formed of a substantially crank shape. It has a closed shape. The lower ends of the side walls 51 are bent at right angles to their center sides to form longitudinal grooves 54 therein, into which the guide strips of the base 40 are slidably engaged. I do. An outer surface 53 of a vertical portion of the surface material 52 having a substantially crank shape is a portion operated by an operator's finger, and a plurality of vertical shallow grooves are provided on the surface to prevent the finger from slipping during operation. Have been. A cut-out portion 55 is formed in an upright portion provided on the outer side of the surface member 52 in the longitudinal direction so that the linear member 31 of the locking means 30 can be firmly fitted thereto. A through hole 34 formed in a plate 35 vertically fixed to the center end of the locking means 30 is provided on the surface of the vertical portion (corresponding to the back surface of the surface material 52) on the side facing the central partition 45 of 40. Projection 56 to be fitted
Is provided.

The engagement means 30, base 40, and
The operation unit 50 is assembled as follows. First, the end member 33 of each engagement means 30 is slidably supported by the cover 38 on the surface of the sliding window 23 close to the guide 28 (this operation need not necessarily be performed at this stage). . Next, first, the engagement means 30 is fixed to each of the left and right operation units 50. For this purpose, a through hole 34 of a plate member 35 fixed to the center side end of each engagement means 30 is provided at the center of the vertical portion of the crank-shaped surface member 52 in the middle of each operation section 50. After being firmly fitted to 56, the middle part of the engaging means 30 is firmly fitted to the cutout 54 at the outer end in the longitudinal direction of the operation unit 50. In this manner, each operating portion 50 having the center side of the engaging member 30 fixed thereto has a spring 57 at the middle from both sides in the longitudinal direction with respect to the base 40 previously fixed to the sliding window 23 as described above. The spring 57 is inserted so as to be compressed (the small-diameter end of the spring 57 is firmly fitted to, for example, a protrusion 56 provided at the axial center of a vertical portion of the crank-shaped surface material 52 of the operation unit 50). The installation is completed by fitting the operation unit 50 to the base 40. FIGS. 3 and 4 show this installation completed state.
It is. FIG. 5 shows the internal state of these figures.

In order to operate the unlocking and opening / closing device of the sliding window according to the present invention, the thumb of one hand is placed outside the vertical portion of one operating portion 50 (a cover member having a crank-shaped vertical cross section). Of the other hand or some of the remaining fingers of the same hand with the other operation unit 50
By pressing the two operating parts 50 toward the center side against the springs 57, respectively.
The claw 32 at the tip of the end member 33 provided at each tip of the engagement means 30 located on the left and right of the sliding window 23 is disengaged from the engagement hole 29 provided on the guide 28 of the window. When the operation tool 50 is moved downward, for example, with the finger as it is, and the hand is released from the operation tool 50 at an appropriate position, the claw 32 of the engaging means 30 is moved to the guide 2 at that position.
8 is engaged with the engaging hole 29.

According to the embodiment of the present invention as described above, there is provided a device which can be operated with one hand to unlock and open and close the sliding window. In this device, the handle 60 is located in the middle of the both-side engaging device of the sliding window 23 and can be arranged substantially in a linear relationship. Unlike those that project downward, the narrowing of the field of view of the sliding window is minimized. Further, since the operation handle has a large-diameter fitting relationship with the base, when operating the handle, the operation section 50
Is not eccentric and may be caught on the base 40.

Various modifications can be made to the embodiment of the present invention. Modification of Base 40 The center wall 45 of the base 40 is not essential. By omitting this and providing a small projection on the guide strip 43 of the base 40, it can be used as a stopper for the sliding limit of the operation unit 50. It is also conceivable that the time when the outer side in the axial direction of the surface member 52 of the operation unit 50 abuts on the outer side in the axial direction of the base 40 is the time when the operation is completed. The base 40 may be separated to the left and right at the center of the center side, that is, at the center of the center partition, if it is convenient for the production by the mold or if it is necessary to provide a space in the middle.

Modification Example of Operation Unit 50 The horizontal cover portion of the surface member 52 having a crank-shaped longitudinal section of the operation unit 50 and in parallel with the engaging means 30 can be shorter than that shown in the figure. It is. However, in this case, care must be taken because the area of the interfitting portion between the operation unit 50 and the base 40 becomes small, and the fitting relationship between the two may become unstable. The support position of the spring 57 inside the operation section 50 can be lower than that in the case of FIG. 5, that is, coaxial with the engagement means 30 in an extreme case. The spring 57 may be provided with a large through-hole in the center wall 45 of the base 40 so that one spring acts on the left and right operation units 50.

Modifications of the Base 40 and the Operation Unit 50 The cross-sectional shape of the two is not a substantially rectangular shape as shown in the drawing, but a semi-circle with the parallel part facing the sliding window 23, or a semi-circle or more. A cross-sectional shape that is also small (the straight portion exceeds or does not exceed the center of the circle) is also considered to be a convenient shape for operation. When a cross-sectional shape that exceeds the semicircle is adopted, the two have a fitting that cannot be disengaged from each other, so that the fitting structure between the guide strip and the groove can be omitted, so that a smoother fitting can be achieved. A relationship will be obtained.

Modified Example Regarding the Engaging Means 30 In the embodiment, the spring 57 for pressing the engaging means 30 is disposed between the operating portion 50 and the central wall 45 of the base 40. 57 can be arranged, for example, in the cover 38 arranged on both sides of the sliding window 23. In this case, for example, a spring having the same diameter is loosely fitted to the outside of the engagement means 30 in the cover 38, and the outer end of the spring is pressed against the end member 23 of the engagement means 30. It abuts or is fixed inside the cover 38. Although this structure does not affect the operability of the device of the present invention, there is an advantage that the size of the operation unit 50 and the base 40 can be reduced. However, in this case, there is a disadvantage that the size of the cover 38 becomes large, so that this is one of the options according to the preference of the client.

[Brief description of the drawings]

FIG. 1 is a cabin door having a sliding window in which a sliding window unlocking / opening / closing device according to the present invention is employed.

FIG. 2 is an exploded perspective view of the unlocking and opening / closing device of FIG. 1 as viewed from the back side.

FIG. 3 is a view of the assembled unlocking / opening / closing device as viewed from a direction parallel to a sliding window.

FIG. 4 is a view of the assembled unlocking / opening / closing device as viewed from a direction facing a sliding window.

FIG. 5 is a perspective view of FIG. 3;

FIG. 6 is a perspective view of a loader.

FIG. 7 is a schematic diagram of a conventional example.

FIG. 8 is a schematic view of another conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cylinder, 2 ... Support, 3 rods, 4 ... Spring, 5
… Outer end, 6 handles…, 7, 8… Swing part, 9,10…
Link member, 11 lock hole, 12 rod, 13 fulcrum, 14 relay member, 15 lever, 16 handle
DESCRIPTION OF SYMBOLS 20 ... Cabin, 21 ... Door, 22 ... Door frame, 23 ... Sliding window, 24 ... Fixed window, 25 ... Door panel, 26 ... Unlocking, opening / closing device, 27 ... Urging device, 28 ... Guide, 2
9 ... engagement hole, 30 ... engagement means, 31 ... linear member, 32 ...
Claw, 33: end member, 34: through hole, 35: plate, 38
... Cover, 40 ... Base, 41 ... Parallel back surface, 42 ... Screw receiving projection, 43 ... Guide strip, 44 ... Substrate, 45 ... Central partition,
46 ... open frame, 47 ... backing plate, 48 ... screw, 49 ... cover, 50 ... operation unit, 51 ... side wall, 52 ... surface material, 53 ...
Vertical part outer surface, 54 ... groove, 55 ... notch, 56 ... protrusion,
57 ... spring, 60 ... handle.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hitoshi Horikawa 400 Yokokura Nitta, Oyama City, Tochigi Prefecture Inside Komatsu Plant, Oyama Plant (72) Inventor Nobuyuki Ota 400 Yokokura Nitta, Oyama City, Tochigi Prefecture Koyama Plant, Oyama Plant (72) Inventor Naoya Yoshinaka 200, Sodekake, Ohara, Numata-Nishimachi, Mihara-shi, Hiroshima Prefecture 76 Renia Stekuno Co., Ltd. Reference) 2D015 EA03 2E250 AA21 HH06 JJ00 KK01 LL17 QQ09 3D127 AA09 BB06 CB05 CC05 DF02

Claims (4)

[Claims] 1. An unlocking / opening / closing device for a sliding window, comprising: a sliding window (23) disposed on a surface of a sliding window (23) and urged to be separated from each other in a direction perpendicular to a sliding direction of the window. A pair of engaging means (30); on both sides of the sliding window (23), said pair of engaging means (30);
A pair of guide means (28) for guiding the sliding of the sliding window, the intermediate means being located between the pair of engaging means (30) and the urging direction of the urging means; Is a handle (60) that can be operated in the opposite direction. 2. A window unlocking / opening / closing device according to claim 1, wherein the pair of guide means (28) includes means for urging the sliding window (23) in one of the sliding directions. 3. A handle (60) comprising a pair of engagement means (3).
3. The window unlocking and opening / closing device according to claim 1, further comprising a pair of operating members (50) for operating (0) in a direction opposite to the biasing direction. 4. A method according to claim 1, wherein the means for biasing the pair of engagement means in a direction away from each other is provided in the handle. Unlocking and opening devices for windows.